update vendor

Gopkg.lock

@@ -1,6 +1,12 @@
 # This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
 
 
+[[projects]]
+  branch = "master"
+  name = "github.com/Yawning/chacha20"
+  packages = ["."]
+  revision = "e3b1f968fc6397b51d963fee8ec8711a47bc0ce8"
+
 [[projects]]
   branch = "master"
   name = "github.com/alecthomas/template"
@@ -28,6 +34,12 @@
   packages = ["."]
   revision = "3520598351bb3500a49ae9563f5539666ae0a27c"
 
+[[projects]]
+  name = "github.com/juju/ratelimit"
+  packages = ["."]
+  revision = "59fac5042749a5afb9af70e813da1dd5474f0167"
+  version = "1.0.1"
+
 [[projects]]
   name = "github.com/klauspost/cpuid"
   packages = ["."]
@@ -119,6 +131,12 @@
   ]
   revision = "db08ff08e8622530d9ed3a0e8ac279f6d4c02196"
 
+[[projects]]
+  branch = "master"
+  name = "golang.org/x/sys"
+  packages = ["unix"]
+  revision = "dad3d9fb7b6e83d0f9ac8f54670f6334c3a287b4"
+
 [[projects]]
   branch = "master"
   name = "golang.org/x/time"
@@ -134,6 +152,6 @@
 [solve-meta]
   analyzer-name = "dep"
   analyzer-version = 1
-  inputs-digest = "eab0ef29432489696d8bfd524757dcb03a83f91c329f2d05c36da70df850360d"
+  inputs-digest = "15e4e23c0695db1458b3dc5514c8765be091a420c923b24bb9e186f43400995f"
   solver-name = "gps-cdcl"
   solver-version = 1

vendor/github.com/Yawning/chacha20/LICENSE

@@ -0,0 +1,122 @@
+Creative Commons Legal Code
+
+CC0 1.0 Universal
+
+    CREATIVE COMMONS CORPORATION IS NOT A LAW FIRM AND DOES NOT PROVIDE
+    LEGAL SERVICES. DISTRIBUTION OF THIS DOCUMENT DOES NOT CREATE AN
+    ATTORNEY-CLIENT RELATIONSHIP. CREATIVE COMMONS PROVIDES THIS
+    INFORMATION ON AN "AS-IS" BASIS. CREATIVE COMMONS MAKES NO WARRANTIES
+    REGARDING THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS
+    PROVIDED HEREUNDER, AND DISCLAIMS LIABILITY FOR DAMAGES RESULTING FROM
+    THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS PROVIDED
+    HEREUNDER.
+
+Statement of Purpose
+
+The laws of most jurisdictions throughout the world automatically confer
+exclusive Copyright and Related Rights (defined below) upon the creator
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+
+For these and/or other purposes and motivations, and without any
+expectation of additional consideration or compensation, the person
+associating CC0 with a Work (the "Affirmer"), to the extent that he or she
+is an owner of Copyright and Related Rights in the Work, voluntarily
+elects to apply CC0 to the Work and publicly distribute the Work under its
+terms, with knowledge of his or her Copyright and Related Rights in the
+Work and the meaning and intended legal effect of CC0 on those rights.
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+1. Copyright and Related Rights. A Work made available under CC0 may be
+protected by copyright and related or neighboring rights ("Copyright and
+Related Rights"). Copyright and Related Rights include, but are not
+limited to, the following:
+
+  i. the right to reproduce, adapt, distribute, perform, display,
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+ ii. moral rights retained by the original author(s) and/or performer(s);
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+     directive); and
+vii. other similar, equivalent or corresponding rights throughout the
+     world based on applicable law or treaty, and any national
+     implementations thereof.
+
+2. Waiver. To the greatest extent permitted by, but not in contravention
+of, applicable law, Affirmer hereby overtly, fully, permanently,
+irrevocably and unconditionally waives, abandons, and surrenders all of
+Affirmer's Copyright and Related Rights and associated claims and causes
+of action, whether now known or unknown (including existing as well as
+future claims and causes of action), in the Work (i) in all territories
+worldwide, (ii) for the maximum duration provided by applicable law or
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+medium and for any number of copies, and (iv) for any purpose whatsoever,
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+purposes (the "Waiver"). Affirmer makes the Waiver for the benefit of each
+member of the public at large and to the detriment of Affirmer's heirs and
+successors, fully intending that such Waiver shall not be subject to
+revocation, rescission, cancellation, termination, or any other legal or
+equitable action to disrupt the quiet enjoyment of the Work by the public
+as contemplated by Affirmer's express Statement of Purpose.
+
+3. Public License Fallback. Should any part of the Waiver for any reason
+be judged legally invalid or ineffective under applicable law, then the
+Waiver shall be preserved to the maximum extent permitted taking into
+account Affirmer's express Statement of Purpose. In addition, to the
+extent the Waiver is so judged Affirmer hereby grants to each affected
+person a royalty-free, non transferable, non sublicensable, non exclusive,
+irrevocable and unconditional license to exercise Affirmer's Copyright and
+Related Rights in the Work (i) in all territories worldwide, (ii) for the
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+time extensions), (iii) in any current or future medium and for any number
+of copies, and (iv) for any purpose whatsoever, including without
+limitation commercial, advertising or promotional purposes (the
+"License"). The License shall be deemed effective as of the date CC0 was
+applied by Affirmer to the Work. Should any part of the License for any
+reason be judged legally invalid or ineffective under applicable law, such
+partial invalidity or ineffectiveness shall not invalidate the remainder
+of the License, and in such case Affirmer hereby affirms that he or she
+will not (i) exercise any of his or her remaining Copyright and Related
+Rights in the Work or (ii) assert any associated claims and causes of
+action with respect to the Work, in either case contrary to Affirmer's
+express Statement of Purpose.
+
+4. Limitations and Disclaimers.
+
+ a. No trademark or patent rights held by Affirmer are waived, abandoned,
+    surrendered, licensed or otherwise affected by this document.
+ b. Affirmer offers the Work as-is and makes no representations or
+    warranties of any kind concerning the Work, express, implied,
+    statutory or otherwise, including without limitation warranties of
+    title, merchantability, fitness for a particular purpose, non
+    infringement, or the absence of latent or other defects, accuracy, or
+    the present or absence of errors, whether or not discoverable, all to
+    the greatest extent permissible under applicable law.
+ c. Affirmer disclaims responsibility for clearing rights of other persons
+    that may apply to the Work or any use thereof, including without
+    limitation any person's Copyright and Related Rights in the Work.
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+    consents, permissions or other rights required for any use of the
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+    party to this document and has no duty or obligation with respect to
+    this CC0 or use of the Work.
+

vendor/github.com/Yawning/chacha20/README.md

@@ -0,0 +1,14 @@
+### chacha20 - ChaCha20
+#### Yawning Angel (yawning at schwanenlied dot me)
+
+Yet another Go ChaCha20 implementation.  Everything else I found  was slow,
+didn't support all the variants I need to use, or relied on cgo to go fast.
+
+Features:
+
+ * 20 round, 256 bit key only.  Everything else is pointless and stupid.
+ * IETF 96 bit nonce variant.
+ * XChaCha 24 byte nonce variant.
+ * SSE2 and AVX2 support on amd64 targets.
+ * Incremental encrypt/decrypt support, unlike golang.org/x/crypto/salsa20.
+

vendor/github.com/Yawning/chacha20/chacha20.go

@@ -0,0 +1,273 @@
+// chacha20.go - A ChaCha stream cipher implementation.
+//
+// To the extent possible under law, Yawning Angel has waived all copyright
+// and related or neighboring rights to chacha20, using the Creative
+// Commons "CC0" public domain dedication. See LICENSE or
+// <http://creativecommons.org/publicdomain/zero/1.0/> for full details.
+
+package chacha20
+
+import (
+	"crypto/cipher"
+	"encoding/binary"
+	"errors"
+	"math"
+	"runtime"
+)
+
+const (
+	// KeySize is the ChaCha20 key size in bytes.
+	KeySize = 32
+
+	// NonceSize is the ChaCha20 nonce size in bytes.
+	NonceSize = 8
+
+	// INonceSize is the IETF ChaCha20 nonce size in bytes.
+	INonceSize = 12
+
+	// XNonceSize is the XChaCha20 nonce size in bytes.
+	XNonceSize = 24
+
+	// HNonceSize is the HChaCha20 nonce size in bytes.
+	HNonceSize = 16
+
+	// BlockSize is the ChaCha20 block size in bytes.
+	BlockSize = 64
+
+	stateSize    = 16
+	chachaRounds = 20
+
+	// The constant "expand 32-byte k" as little endian uint32s.
+	sigma0 = uint32(0x61707865)
+	sigma1 = uint32(0x3320646e)
+	sigma2 = uint32(0x79622d32)
+	sigma3 = uint32(0x6b206574)
+)
+
+var (
+	// ErrInvalidKey is the error returned when the key is invalid.
+	ErrInvalidKey = errors.New("key length must be KeySize bytes")
+
+	// ErrInvalidNonce is the error returned when the nonce is invalid.
+	ErrInvalidNonce = errors.New("nonce length must be NonceSize/INonceSize/XNonceSize bytes")
+
+	// ErrInvalidCounter is the error returned when the counter is invalid.
+	ErrInvalidCounter = errors.New("block counter is invalid (out of range)")
+
+	useUnsafe    = false
+	usingVectors = false
+	blocksFn     = blocksRef
+)
+
+// A Cipher is an instance of ChaCha20/XChaCha20 using a particular key and
+// nonce.
+type Cipher struct {
+	state [stateSize]uint32
+
+	buf  [BlockSize]byte
+	off  int
+	ietf bool
+}
+
+// Reset zeros the key data so that it will no longer appear in the process's
+// memory.
+func (c *Cipher) Reset() {
+	for i := range c.state {
+		c.state[i] = 0
+	}
+	for i := range c.buf {
+		c.buf[i] = 0
+	}
+}
+
+// XORKeyStream sets dst to the result of XORing src with the key stream.  Dst
+// and src may be the same slice but otherwise should not overlap.
+func (c *Cipher) XORKeyStream(dst, src []byte) {
+	if len(dst) < len(src) {
+		src = src[:len(dst)]
+	}
+
+	for remaining := len(src); remaining > 0; {
+		// Process multiple blocks at once.
+		if c.off == BlockSize {
+			nrBlocks := remaining / BlockSize
+			directBytes := nrBlocks * BlockSize
+			if nrBlocks > 0 {
+				blocksFn(&c.state, src, dst, nrBlocks, c.ietf)
+				remaining -= directBytes
+				if remaining == 0 {
+					return
+				}
+				dst = dst[directBytes:]
+				src = src[directBytes:]
+			}
+
+			// If there's a partial block, generate 1 block of keystream into
+			// the internal buffer.
+			blocksFn(&c.state, nil, c.buf[:], 1, c.ietf)
+			c.off = 0
+		}
+
+		// Process partial blocks from the buffered keystream.
+		toXor := BlockSize - c.off
+		if remaining < toXor {
+			toXor = remaining
+		}
+		if toXor > 0 {
+			for i, v := range src[:toXor] {
+				dst[i] = v ^ c.buf[c.off+i]
+			}
+			dst = dst[toXor:]
+			src = src[toXor:]
+
+			remaining -= toXor
+			c.off += toXor
+		}
+	}
+}
+
+// KeyStream sets dst to the raw keystream.
+func (c *Cipher) KeyStream(dst []byte) {
+	for remaining := len(dst); remaining > 0; {
+		// Process multiple blocks at once.
+		if c.off == BlockSize {
+			nrBlocks := remaining / BlockSize
+			directBytes := nrBlocks * BlockSize
+			if nrBlocks > 0 {
+				blocksFn(&c.state, nil, dst, nrBlocks, c.ietf)
+				remaining -= directBytes
+				if remaining == 0 {
+					return
+				}
+				dst = dst[directBytes:]
+			}
+
+			// If there's a partial block, generate 1 block of keystream into
+			// the internal buffer.
+			blocksFn(&c.state, nil, c.buf[:], 1, c.ietf)
+			c.off = 0
+		}
+
+		// Process partial blocks from the buffered keystream.
+		toCopy := BlockSize - c.off
+		if remaining < toCopy {
+			toCopy = remaining
+		}
+		if toCopy > 0 {
+			copy(dst[:toCopy], c.buf[c.off:c.off+toCopy])
+			dst = dst[toCopy:]
+			remaining -= toCopy
+			c.off += toCopy
+		}
+	}
+}
+
+// ReKey reinitializes the ChaCha20/XChaCha20 instance with the provided key
+// and nonce.
+func (c *Cipher) ReKey(key, nonce []byte) error {
+	if len(key) != KeySize {
+		return ErrInvalidKey
+	}
+
+	switch len(nonce) {
+	case NonceSize:
+	case INonceSize:
+	case XNonceSize:
+		var subkey [KeySize]byte
+		var subnonce [HNonceSize]byte
+		copy(subnonce[:], nonce[0:16])
+		HChaCha(key, &subnonce, &subkey)
+		key = subkey[:]
+		nonce = nonce[16:24]
+		defer func() {
+			for i := range subkey {
+				subkey[i] = 0
+			}
+		}()
+	default:
+		return ErrInvalidNonce
+	}
+
+	c.Reset()
+	c.state[0] = sigma0
+	c.state[1] = sigma1
+	c.state[2] = sigma2
+	c.state[3] = sigma3
+	c.state[4] = binary.LittleEndian.Uint32(key[0:4])
+	c.state[5] = binary.LittleEndian.Uint32(key[4:8])
+	c.state[6] = binary.LittleEndian.Uint32(key[8:12])
+	c.state[7] = binary.LittleEndian.Uint32(key[12:16])
+	c.state[8] = binary.LittleEndian.Uint32(key[16:20])
+	c.state[9] = binary.LittleEndian.Uint32(key[20:24])
+	c.state[10] = binary.LittleEndian.Uint32(key[24:28])
+	c.state[11] = binary.LittleEndian.Uint32(key[28:32])
+	c.state[12] = 0
+	if len(nonce) == INonceSize {
+		c.state[13] = binary.LittleEndian.Uint32(nonce[0:4])
+		c.state[14] = binary.LittleEndian.Uint32(nonce[4:8])
+		c.state[15] = binary.LittleEndian.Uint32(nonce[8:12])
+		c.ietf = true
+	} else {
+		c.state[13] = 0
+		c.state[14] = binary.LittleEndian.Uint32(nonce[0:4])
+		c.state[15] = binary.LittleEndian.Uint32(nonce[4:8])
+		c.ietf = false
+	}
+	c.off = BlockSize
+	return nil
+
+}
+
+// Seek sets the block counter to a given offset.
+func (c *Cipher) Seek(blockCounter uint64) error {
+	if c.ietf {
+		if blockCounter > math.MaxUint32 {
+			return ErrInvalidCounter
+		}
+		c.state[12] = uint32(blockCounter)
+	} else {
+		c.state[12] = uint32(blockCounter)
+		c.state[13] = uint32(blockCounter >> 32)
+	}
+	c.off = BlockSize
+	return nil
+}
+
+// NewCipher returns a new ChaCha20/XChaCha20 instance.
+func NewCipher(key, nonce []byte) (*Cipher, error) {
+	c := new(Cipher)
+	if err := c.ReKey(key, nonce); err != nil {
+		return nil, err
+	}
+	return c, nil
+}
+
+// HChaCha is the HChaCha20 hash function used to make XChaCha.
+func HChaCha(key []byte, nonce *[HNonceSize]byte, out *[32]byte) {
+	var x [stateSize]uint32 // Last 4 slots unused, sigma hardcoded.
+	x[0] = binary.LittleEndian.Uint32(key[0:4])
+	x[1] = binary.LittleEndian.Uint32(key[4:8])
+	x[2] = binary.LittleEndian.Uint32(key[8:12])
+	x[3] = binary.LittleEndian.Uint32(key[12:16])
+	x[4] = binary.LittleEndian.Uint32(key[16:20])
+	x[5] = binary.LittleEndian.Uint32(key[20:24])
+	x[6] = binary.LittleEndian.Uint32(key[24:28])
+	x[7] = binary.LittleEndian.Uint32(key[28:32])
+	x[8] = binary.LittleEndian.Uint32(nonce[0:4])
+	x[9] = binary.LittleEndian.Uint32(nonce[4:8])
+	x[10] = binary.LittleEndian.Uint32(nonce[8:12])
+	x[11] = binary.LittleEndian.Uint32(nonce[12:16])
+	hChaChaRef(&x, out)
+}
+
+func init() {
+	switch runtime.GOARCH {
+	case "386", "amd64":
+		// Abuse unsafe to skip calling binary.LittleEndian.PutUint32
+		// in the critical path.  This is a big boost on systems that are
+		// little endian and not overly picky about alignment.
+		useUnsafe = true
+	}
+}
+
+var _ cipher.Stream = (*Cipher)(nil)

vendor/github.com/Yawning/chacha20/chacha20_amd64.go

@@ -0,0 +1,95 @@
+// chacha20_amd64.go - AMD64 optimized chacha20.
+//
+// To the extent possible under law, Yawning Angel has waived all copyright
+// and related or neighboring rights to chacha20, using the Creative
+// Commons "CC0" public domain dedication. See LICENSE or
+// <http://creativecommons.org/publicdomain/zero/1.0/> for full details.
+
+// +build amd64,!gccgo,!appengine
+
+package chacha20
+
+import (
+	"math"
+)
+
+var usingAVX2 = false
+
+func blocksAmd64SSE2(x *uint32, inp, outp *byte, nrBlocks uint)
+
+func blocksAmd64AVX2(x *uint32, inp, outp *byte, nrBlocks uint)
+
+func cpuidAmd64(cpuidParams *uint32)
+
+func xgetbv0Amd64(xcrVec *uint32)
+
+func blocksAmd64(x *[stateSize]uint32, in []byte, out []byte, nrBlocks int, isIetf bool) {
+	// Probably unneeded, but stating this explicitly simplifies the assembly.
+	if nrBlocks == 0 {
+		return
+	}
+
+	if isIetf {
+		var totalBlocks uint64
+		totalBlocks = uint64(x[12]) + uint64(nrBlocks)
+		if totalBlocks > math.MaxUint32 {
+			panic("chacha20: Exceeded keystream per nonce limit")
+		}
+	}
+
+	if in == nil {
+		for i := range out {
+			out[i] = 0
+		}
+		in = out
+	}
+
+	// Pointless to call the AVX2 code for just a single block, since half of
+	// the output gets discarded...
+	if usingAVX2 && nrBlocks > 1 {
+		blocksAmd64AVX2(&x[0], &in[0], &out[0], uint(nrBlocks))
+	} else {
+		blocksAmd64SSE2(&x[0], &in[0], &out[0], uint(nrBlocks))
+	}
+}
+
+func supportsAVX2() bool {
+	// https://software.intel.com/en-us/articles/how-to-detect-new-instruction-support-in-the-4th-generation-intel-core-processor-family
+	const (
+		osXsaveBit = 1 << 27
+		avx2Bit    = 1 << 5
+	)
+
+	// Check to see if CPUID actually supports the leaf that indicates AVX2.
+	// CPUID.(EAX=0H, ECX=0H) >= 7
+	regs := [4]uint32{0x00}
+	cpuidAmd64(&regs[0])
+	if regs[0] < 7 {
+		return false
+	}
+
+	// Check to see if the OS knows how to save/restore XMM/YMM state.
+	// CPUID.(EAX=01H, ECX=0H):ECX.OSXSAVE[bit 27]==1
+	regs = [4]uint32{0x01}
+	cpuidAmd64(&regs[0])
+	if regs[2]&osXsaveBit == 0 {
+		return false
+	}
+	xcrRegs := [2]uint32{}
+	xgetbv0Amd64(&xcrRegs[0])
+	if xcrRegs[0]&6 != 6 {
+		return false
+	}
+
+	// Check for AVX2 support.
+	// CPUID.(EAX=07H, ECX=0H):EBX.AVX2[bit 5]==1
+	regs = [4]uint32{0x07}
+	cpuidAmd64(&regs[0])
+	return regs[1]&avx2Bit != 0
+}
+
+func init() {
+	blocksFn = blocksAmd64
+	usingVectors = true
+	usingAVX2 = supportsAVX2()
+}

vendor/github.com/Yawning/chacha20/chacha20_ref.go

@@ -0,0 +1,394 @@
+// chacha20_ref.go - Reference ChaCha20.
+//
+// To the extent possible under law, Yawning Angel has waived all copyright
+// and related or neighboring rights to chacha20, using the Creative
+// Commons "CC0" public domain dedication. See LICENSE or
+// <http://creativecommons.org/publicdomain/zero/1.0/> for full details.
+
+// +build !go1.9
+
+package chacha20
+
+import (
+	"encoding/binary"
+	"math"
+	"unsafe"
+)
+
+func blocksRef(x *[stateSize]uint32, in []byte, out []byte, nrBlocks int, isIetf bool) {
+	if isIetf {
+		var totalBlocks uint64
+		totalBlocks = uint64(x[12]) + uint64(nrBlocks)
+		if totalBlocks > math.MaxUint32 {
+			panic("chacha20: Exceeded keystream per nonce limit")
+		}
+	}
+
+	// This routine ignores x[0]...x[4] in favor the const values since it's
+	// ever so slightly faster.
+
+	for n := 0; n < nrBlocks; n++ {
+		x0, x1, x2, x3 := sigma0, sigma1, sigma2, sigma3
+		x4, x5, x6, x7, x8, x9, x10, x11, x12, x13, x14, x15 := x[4], x[5], x[6], x[7], x[8], x[9], x[10], x[11], x[12], x[13], x[14], x[15]
+
+		for i := chachaRounds; i > 0; i -= 2 {
+			// quarterround(x, 0, 4, 8, 12)
+			x0 += x4
+			x12 ^= x0
+			x12 = (x12 << 16) | (x12 >> 16)
+			x8 += x12
+			x4 ^= x8
+			x4 = (x4 << 12) | (x4 >> 20)
+			x0 += x4
+			x12 ^= x0
+			x12 = (x12 << 8) | (x12 >> 24)
+			x8 += x12
+			x4 ^= x8
+			x4 = (x4 << 7) | (x4 >> 25)
+
+			// quarterround(x, 1, 5, 9, 13)
+			x1 += x5
+			x13 ^= x1
+			x13 = (x13 << 16) | (x13 >> 16)
+			x9 += x13
+			x5 ^= x9
+			x5 = (x5 << 12) | (x5 >> 20)
+			x1 += x5
+			x13 ^= x1
+			x13 = (x13 << 8) | (x13 >> 24)
+			x9 += x13
+			x5 ^= x9
+			x5 = (x5 << 7) | (x5 >> 25)
+
+			// quarterround(x, 2, 6, 10, 14)
+			x2 += x6
+			x14 ^= x2
+			x14 = (x14 << 16) | (x14 >> 16)
+			x10 += x14
+			x6 ^= x10
+			x6 = (x6 << 12) | (x6 >> 20)
+			x2 += x6
+			x14 ^= x2
+			x14 = (x14 << 8) | (x14 >> 24)
+			x10 += x14
+			x6 ^= x10
+			x6 = (x6 << 7) | (x6 >> 25)
+
+			// quarterround(x, 3, 7, 11, 15)
+			x3 += x7
+			x15 ^= x3
+			x15 = (x15 << 16) | (x15 >> 16)
+			x11 += x15
+			x7 ^= x11
+			x7 = (x7 << 12) | (x7 >> 20)
+			x3 += x7
+			x15 ^= x3
+			x15 = (x15 << 8) | (x15 >> 24)
+			x11 += x15
+			x7 ^= x11
+			x7 = (x7 << 7) | (x7 >> 25)
+
+			// quarterround(x, 0, 5, 10, 15)
+			x0 += x5
+			x15 ^= x0
+			x15 = (x15 << 16) | (x15 >> 16)
+			x10 += x15
+			x5 ^= x10
+			x5 = (x5 << 12) | (x5 >> 20)
+			x0 += x5
+			x15 ^= x0
+			x15 = (x15 << 8) | (x15 >> 24)
+			x10 += x15
+			x5 ^= x10
+			x5 = (x5 << 7) | (x5 >> 25)
+
+			// quarterround(x, 1, 6, 11, 12)
+			x1 += x6
+			x12 ^= x1
+			x12 = (x12 << 16) | (x12 >> 16)
+			x11 += x12
+			x6 ^= x11
+			x6 = (x6 << 12) | (x6 >> 20)
+			x1 += x6
+			x12 ^= x1
+			x12 = (x12 << 8) | (x12 >> 24)
+			x11 += x12
+			x6 ^= x11
+			x6 = (x6 << 7) | (x6 >> 25)
+
+			// quarterround(x, 2, 7, 8, 13)
+			x2 += x7
+			x13 ^= x2
+			x13 = (x13 << 16) | (x13 >> 16)
+			x8 += x13
+			x7 ^= x8
+			x7 = (x7 << 12) | (x7 >> 20)
+			x2 += x7
+			x13 ^= x2
+			x13 = (x13 << 8) | (x13 >> 24)
+			x8 += x13
+			x7 ^= x8
+			x7 = (x7 << 7) | (x7 >> 25)
+
+			// quarterround(x, 3, 4, 9, 14)
+			x3 += x4
+			x14 ^= x3
+			x14 = (x14 << 16) | (x14 >> 16)
+			x9 += x14
+			x4 ^= x9
+			x4 = (x4 << 12) | (x4 >> 20)
+			x3 += x4
+			x14 ^= x3
+			x14 = (x14 << 8) | (x14 >> 24)
+			x9 += x14
+			x4 ^= x9
+			x4 = (x4 << 7) | (x4 >> 25)
+		}
+
+		// On amd64 at least, this is a rather big boost.
+		if useUnsafe {
+			if in != nil {
+				inArr := (*[16]uint32)(unsafe.Pointer(&in[n*BlockSize]))
+				outArr := (*[16]uint32)(unsafe.Pointer(&out[n*BlockSize]))
+				outArr[0] = inArr[0] ^ (x0 + sigma0)
+				outArr[1] = inArr[1] ^ (x1 + sigma1)
+				outArr[2] = inArr[2] ^ (x2 + sigma2)
+				outArr[3] = inArr[3] ^ (x3 + sigma3)
+				outArr[4] = inArr[4] ^ (x4 + x[4])
+				outArr[5] = inArr[5] ^ (x5 + x[5])
+				outArr[6] = inArr[6] ^ (x6 + x[6])
+				outArr[7] = inArr[7] ^ (x7 + x[7])
+				outArr[8] = inArr[8] ^ (x8 + x[8])
+				outArr[9] = inArr[9] ^ (x9 + x[9])
+				outArr[10] = inArr[10] ^ (x10 + x[10])
+				outArr[11] = inArr[11] ^ (x11 + x[11])
+				outArr[12] = inArr[12] ^ (x12 + x[12])
+				outArr[13] = inArr[13] ^ (x13 + x[13])
+				outArr[14] = inArr[14] ^ (x14 + x[14])
+				outArr[15] = inArr[15] ^ (x15 + x[15])
+			} else {
+				outArr := (*[16]uint32)(unsafe.Pointer(&out[n*BlockSize]))
+				outArr[0] = x0 + sigma0
+				outArr[1] = x1 + sigma1
+				outArr[2] = x2 + sigma2
+				outArr[3] = x3 + sigma3
+				outArr[4] = x4 + x[4]
+				outArr[5] = x5 + x[5]
+				outArr[6] = x6 + x[6]
+				outArr[7] = x7 + x[7]
+				outArr[8] = x8 + x[8]
+				outArr[9] = x9 + x[9]
+				outArr[10] = x10 + x[10]
+				outArr[11] = x11 + x[11]
+				outArr[12] = x12 + x[12]
+				outArr[13] = x13 + x[13]
+				outArr[14] = x14 + x[14]
+				outArr[15] = x15 + x[15]
+			}
+		} else {
+			// Slow path, either the architecture cares about alignment, or is not little endian.
+			x0 += sigma0
+			x1 += sigma1
+			x2 += sigma2
+			x3 += sigma3
+			x4 += x[4]
+			x5 += x[5]
+			x6 += x[6]
+			x7 += x[7]
+			x8 += x[8]
+			x9 += x[9]
+			x10 += x[10]
+			x11 += x[11]
+			x12 += x[12]
+			x13 += x[13]
+			x14 += x[14]
+			x15 += x[15]
+			if in != nil {
+				binary.LittleEndian.PutUint32(out[0:4], binary.LittleEndian.Uint32(in[0:4])^x0)
+				binary.LittleEndian.PutUint32(out[4:8], binary.LittleEndian.Uint32(in[4:8])^x1)
+				binary.LittleEndian.PutUint32(out[8:12], binary.LittleEndian.Uint32(in[8:12])^x2)
+				binary.LittleEndian.PutUint32(out[12:16], binary.LittleEndian.Uint32(in[12:16])^x3)
+				binary.LittleEndian.PutUint32(out[16:20], binary.LittleEndian.Uint32(in[16:20])^x4)
+				binary.LittleEndian.PutUint32(out[20:24], binary.LittleEndian.Uint32(in[20:24])^x5)
+				binary.LittleEndian.PutUint32(out[24:28], binary.LittleEndian.Uint32(in[24:28])^x6)
+				binary.LittleEndian.PutUint32(out[28:32], binary.LittleEndian.Uint32(in[28:32])^x7)
+				binary.LittleEndian.PutUint32(out[32:36], binary.LittleEndian.Uint32(in[32:36])^x8)
+				binary.LittleEndian.PutUint32(out[36:40], binary.LittleEndian.Uint32(in[36:40])^x9)
+				binary.LittleEndian.PutUint32(out[40:44], binary.LittleEndian.Uint32(in[40:44])^x10)
+				binary.LittleEndian.PutUint32(out[44:48], binary.LittleEndian.Uint32(in[44:48])^x11)
+				binary.LittleEndian.PutUint32(out[48:52], binary.LittleEndian.Uint32(in[48:52])^x12)
+				binary.LittleEndian.PutUint32(out[52:56], binary.LittleEndian.Uint32(in[52:56])^x13)
+				binary.LittleEndian.PutUint32(out[56:60], binary.LittleEndian.Uint32(in[56:60])^x14)
+				binary.LittleEndian.PutUint32(out[60:64], binary.LittleEndian.Uint32(in[60:64])^x15)
+				in = in[BlockSize:]
+			} else {
+				binary.LittleEndian.PutUint32(out[0:4], x0)
+				binary.LittleEndian.PutUint32(out[4:8], x1)
+				binary.LittleEndian.PutUint32(out[8:12], x2)
+				binary.LittleEndian.PutUint32(out[12:16], x3)
+				binary.LittleEndian.PutUint32(out[16:20], x4)
+				binary.LittleEndian.PutUint32(out[20:24], x5)
+				binary.LittleEndian.PutUint32(out[24:28], x6)
+				binary.LittleEndian.PutUint32(out[28:32], x7)
+				binary.LittleEndian.PutUint32(out[32:36], x8)
+				binary.LittleEndian.PutUint32(out[36:40], x9)
+				binary.LittleEndian.PutUint32(out[40:44], x10)
+				binary.LittleEndian.PutUint32(out[44:48], x11)
+				binary.LittleEndian.PutUint32(out[48:52], x12)
+				binary.LittleEndian.PutUint32(out[52:56], x13)
+				binary.LittleEndian.PutUint32(out[56:60], x14)
+				binary.LittleEndian.PutUint32(out[60:64], x15)
+			}
+			out = out[BlockSize:]
+		}
+
+		// Stoping at 2^70 bytes per nonce is the user's responsibility.
+		ctr := uint64(x[13])<<32 | uint64(x[12])
+		ctr++
+		x[12] = uint32(ctr)
+		x[13] = uint32(ctr >> 32)
+	}
+}
+
+func hChaChaRef(x *[stateSize]uint32, out *[32]byte) {
+	x0, x1, x2, x3 := sigma0, sigma1, sigma2, sigma3
+	x4, x5, x6, x7, x8, x9, x10, x11, x12, x13, x14, x15 := x[0], x[1], x[2], x[3], x[4], x[5], x[6], x[7], x[8], x[9], x[10], x[11]
+
+	for i := chachaRounds; i > 0; i -= 2 {
+		// quarterround(x, 0, 4, 8, 12)
+		x0 += x4
+		x12 ^= x0
+		x12 = (x12 << 16) | (x12 >> 16)
+		x8 += x12
+		x4 ^= x8
+		x4 = (x4 << 12) | (x4 >> 20)
+		x0 += x4
+		x12 ^= x0
+		x12 = (x12 << 8) | (x12 >> 24)
+		x8 += x12
+		x4 ^= x8
+		x4 = (x4 << 7) | (x4 >> 25)
+
+		// quarterround(x, 1, 5, 9, 13)
+		x1 += x5
+		x13 ^= x1
+		x13 = (x13 << 16) | (x13 >> 16)
+		x9 += x13
+		x5 ^= x9
+		x5 = (x5 << 12) | (x5 >> 20)
+		x1 += x5
+		x13 ^= x1
+		x13 = (x13 << 8) | (x13 >> 24)
+		x9 += x13
+		x5 ^= x9
+		x5 = (x5 << 7) | (x5 >> 25)
+
+		// quarterround(x, 2, 6, 10, 14)
+		x2 += x6
+		x14 ^= x2
+		x14 = (x14 << 16) | (x14 >> 16)
+		x10 += x14
+		x6 ^= x10
+		x6 = (x6 << 12) | (x6 >> 20)
+		x2 += x6
+		x14 ^= x2
+		x14 = (x14 << 8) | (x14 >> 24)
+		x10 += x14
+		x6 ^= x10
+		x6 = (x6 << 7) | (x6 >> 25)
+
+		// quarterround(x, 3, 7, 11, 15)
+		x3 += x7
+		x15 ^= x3
+		x15 = (x15 << 16) | (x15 >> 16)
+		x11 += x15
+		x7 ^= x11
+		x7 = (x7 << 12) | (x7 >> 20)
+		x3 += x7
+		x15 ^= x3
+		x15 = (x15 << 8) | (x15 >> 24)
+		x11 += x15
+		x7 ^= x11
+		x7 = (x7 << 7) | (x7 >> 25)
+
+		// quarterround(x, 0, 5, 10, 15)
+		x0 += x5
+		x15 ^= x0
+		x15 = (x15 << 16) | (x15 >> 16)
+		x10 += x15
+		x5 ^= x10
+		x5 = (x5 << 12) | (x5 >> 20)
+		x0 += x5
+		x15 ^= x0
+		x15 = (x15 << 8) | (x15 >> 24)
+		x10 += x15
+		x5 ^= x10
+		x5 = (x5 << 7) | (x5 >> 25)
+
+		// quarterround(x, 1, 6, 11, 12)
+		x1 += x6
+		x12 ^= x1
+		x12 = (x12 << 16) | (x12 >> 16)
+		x11 += x12
+		x6 ^= x11
+		x6 = (x6 << 12) | (x6 >> 20)
+		x1 += x6
+		x12 ^= x1
+		x12 = (x12 << 8) | (x12 >> 24)
+		x11 += x12
+		x6 ^= x11
+		x6 = (x6 << 7) | (x6 >> 25)
+
+		// quarterround(x, 2, 7, 8, 13)
+		x2 += x7
+		x13 ^= x2
+		x13 = (x13 << 16) | (x13 >> 16)
+		x8 += x13
+		x7 ^= x8
+		x7 = (x7 << 12) | (x7 >> 20)
+		x2 += x7
+		x13 ^= x2
+		x13 = (x13 << 8) | (x13 >> 24)
+		x8 += x13
+		x7 ^= x8
+		x7 = (x7 << 7) | (x7 >> 25)
+
+		// quarterround(x, 3, 4, 9, 14)
+		x3 += x4
+		x14 ^= x3
+		x14 = (x14 << 16) | (x14 >> 16)
+		x9 += x14
+		x4 ^= x9
+		x4 = (x4 << 12) | (x4 >> 20)
+		x3 += x4
+		x14 ^= x3
+		x14 = (x14 << 8) | (x14 >> 24)
+		x9 += x14
+		x4 ^= x9
+		x4 = (x4 << 7) | (x4 >> 25)
+	}
+
+	// HChaCha returns x0...x3 | x12...x15, which corresponds to the
+	// indexes of the ChaCha constant and the indexes of the IV.
+	if useUnsafe {
+		outArr := (*[16]uint32)(unsafe.Pointer(&out[0]))
+		outArr[0] = x0
+		outArr[1] = x1
+		outArr[2] = x2
+		outArr[3] = x3
+		outArr[4] = x12
+		outArr[5] = x13
+		outArr[6] = x14
+		outArr[7] = x15
+	} else {
+		binary.LittleEndian.PutUint32(out[0:4], x0)
+		binary.LittleEndian.PutUint32(out[4:8], x1)
+		binary.LittleEndian.PutUint32(out[8:12], x2)
+		binary.LittleEndian.PutUint32(out[12:16], x3)
+		binary.LittleEndian.PutUint32(out[16:20], x12)
+		binary.LittleEndian.PutUint32(out[20:24], x13)
+		binary.LittleEndian.PutUint32(out[24:28], x14)
+		binary.LittleEndian.PutUint32(out[28:32], x15)
+	}
+	return
+}

vendor/github.com/Yawning/chacha20/chacha20_ref_go19.go

@@ -0,0 +1,395 @@
+// chacha20_ref.go - Reference ChaCha20.
+//
+// To the extent possible under law, Yawning Angel has waived all copyright
+// and related or neighboring rights to chacha20, using the Creative
+// Commons "CC0" public domain dedication. See LICENSE or
+// <http://creativecommons.org/publicdomain/zero/1.0/> for full details.
+
+// +build go1.9
+
+package chacha20
+
+import (
+	"encoding/binary"
+	"math"
+	"math/bits"
+	"unsafe"
+)
+
+func blocksRef(x *[stateSize]uint32, in []byte, out []byte, nrBlocks int, isIetf bool) {
+	if isIetf {
+		var totalBlocks uint64
+		totalBlocks = uint64(x[12]) + uint64(nrBlocks)
+		if totalBlocks > math.MaxUint32 {
+			panic("chacha20: Exceeded keystream per nonce limit")
+		}
+	}
+
+	// This routine ignores x[0]...x[4] in favor the const values since it's
+	// ever so slightly faster.
+
+	for n := 0; n < nrBlocks; n++ {
+		x0, x1, x2, x3 := sigma0, sigma1, sigma2, sigma3
+		x4, x5, x6, x7, x8, x9, x10, x11, x12, x13, x14, x15 := x[4], x[5], x[6], x[7], x[8], x[9], x[10], x[11], x[12], x[13], x[14], x[15]
+
+		for i := chachaRounds; i > 0; i -= 2 {
+			// quarterround(x, 0, 4, 8, 12)
+			x0 += x4
+			x12 ^= x0
+			x12 = bits.RotateLeft32(x12, 16)
+			x8 += x12
+			x4 ^= x8
+			x4 = bits.RotateLeft32(x4, 12)
+			x0 += x4
+			x12 ^= x0
+			x12 = bits.RotateLeft32(x12, 8)
+			x8 += x12
+			x4 ^= x8
+			x4 = bits.RotateLeft32(x4, 7)
+
+			// quarterround(x, 1, 5, 9, 13)
+			x1 += x5
+			x13 ^= x1
+			x13 = bits.RotateLeft32(x13, 16)
+			x9 += x13
+			x5 ^= x9
+			x5 = bits.RotateLeft32(x5, 12)
+			x1 += x5
+			x13 ^= x1
+			x13 = bits.RotateLeft32(x13, 8)
+			x9 += x13
+			x5 ^= x9
+			x5 = bits.RotateLeft32(x5, 7)
+
+			// quarterround(x, 2, 6, 10, 14)
+			x2 += x6
+			x14 ^= x2
+			x14 = bits.RotateLeft32(x14, 16)
+			x10 += x14
+			x6 ^= x10
+			x6 = bits.RotateLeft32(x6, 12)
+			x2 += x6
+			x14 ^= x2
+			x14 = bits.RotateLeft32(x14, 8)
+			x10 += x14
+			x6 ^= x10
+			x6 = bits.RotateLeft32(x6, 7)
+
+			// quarterround(x, 3, 7, 11, 15)
+			x3 += x7
+			x15 ^= x3
+			x15 = bits.RotateLeft32(x15, 16)
+			x11 += x15
+			x7 ^= x11
+			x7 = bits.RotateLeft32(x7, 12)
+			x3 += x7
+			x15 ^= x3
+			x15 = bits.RotateLeft32(x15, 8)
+			x11 += x15
+			x7 ^= x11
+			x7 = bits.RotateLeft32(x7, 7)
+
+			// quarterround(x, 0, 5, 10, 15)
+			x0 += x5
+			x15 ^= x0
+			x15 = bits.RotateLeft32(x15, 16)
+			x10 += x15
+			x5 ^= x10
+			x5 = bits.RotateLeft32(x5, 12)
+			x0 += x5
+			x15 ^= x0
+			x15 = bits.RotateLeft32(x15, 8)
+			x10 += x15
+			x5 ^= x10
+			x5 = bits.RotateLeft32(x5, 7)
+
+			// quarterround(x, 1, 6, 11, 12)
+			x1 += x6
+			x12 ^= x1
+			x12 = bits.RotateLeft32(x12, 16)
+			x11 += x12
+			x6 ^= x11
+			x6 = bits.RotateLeft32(x6, 12)
+			x1 += x6
+			x12 ^= x1
+			x12 = bits.RotateLeft32(x12, 8)
+			x11 += x12
+			x6 ^= x11
+			x6 = bits.RotateLeft32(x6, 7)
+
+			// quarterround(x, 2, 7, 8, 13)
+			x2 += x7
+			x13 ^= x2
+			x13 = bits.RotateLeft32(x13, 16)
+			x8 += x13
+			x7 ^= x8
+			x7 = bits.RotateLeft32(x7, 12)
+			x2 += x7
+			x13 ^= x2
+			x13 = bits.RotateLeft32(x13, 8)
+			x8 += x13
+			x7 ^= x8
+			x7 = bits.RotateLeft32(x7, 7)
+
+			// quarterround(x, 3, 4, 9, 14)
+			x3 += x4
+			x14 ^= x3
+			x14 = bits.RotateLeft32(x14, 16)
+			x9 += x14
+			x4 ^= x9
+			x4 = bits.RotateLeft32(x4, 12)
+			x3 += x4
+			x14 ^= x3
+			x14 = bits.RotateLeft32(x14, 8)
+			x9 += x14
+			x4 ^= x9
+			x4 = bits.RotateLeft32(x4, 7)
+		}
+
+		// On amd64 at least, this is a rather big boost.
+		if useUnsafe {
+			if in != nil {
+				inArr := (*[16]uint32)(unsafe.Pointer(&in[n*BlockSize]))
+				outArr := (*[16]uint32)(unsafe.Pointer(&out[n*BlockSize]))
+				outArr[0] = inArr[0] ^ (x0 + sigma0)
+				outArr[1] = inArr[1] ^ (x1 + sigma1)
+				outArr[2] = inArr[2] ^ (x2 + sigma2)
+				outArr[3] = inArr[3] ^ (x3 + sigma3)
+				outArr[4] = inArr[4] ^ (x4 + x[4])
+				outArr[5] = inArr[5] ^ (x5 + x[5])
+				outArr[6] = inArr[6] ^ (x6 + x[6])
+				outArr[7] = inArr[7] ^ (x7 + x[7])
+				outArr[8] = inArr[8] ^ (x8 + x[8])
+				outArr[9] = inArr[9] ^ (x9 + x[9])
+				outArr[10] = inArr[10] ^ (x10 + x[10])
+				outArr[11] = inArr[11] ^ (x11 + x[11])
+				outArr[12] = inArr[12] ^ (x12 + x[12])
+				outArr[13] = inArr[13] ^ (x13 + x[13])
+				outArr[14] = inArr[14] ^ (x14 + x[14])
+				outArr[15] = inArr[15] ^ (x15 + x[15])
+			} else {
+				outArr := (*[16]uint32)(unsafe.Pointer(&out[n*BlockSize]))
+				outArr[0] = x0 + sigma0
+				outArr[1] = x1 + sigma1
+				outArr[2] = x2 + sigma2
+				outArr[3] = x3 + sigma3
+				outArr[4] = x4 + x[4]
+				outArr[5] = x5 + x[5]
+				outArr[6] = x6 + x[6]
+				outArr[7] = x7 + x[7]
+				outArr[8] = x8 + x[8]
+				outArr[9] = x9 + x[9]
+				outArr[10] = x10 + x[10]
+				outArr[11] = x11 + x[11]
+				outArr[12] = x12 + x[12]
+				outArr[13] = x13 + x[13]
+				outArr[14] = x14 + x[14]
+				outArr[15] = x15 + x[15]
+			}
+		} else {
+			// Slow path, either the architecture cares about alignment, or is not little endian.
+			x0 += sigma0
+			x1 += sigma1
+			x2 += sigma2
+			x3 += sigma3
+			x4 += x[4]
+			x5 += x[5]
+			x6 += x[6]
+			x7 += x[7]
+			x8 += x[8]
+			x9 += x[9]
+			x10 += x[10]
+			x11 += x[11]
+			x12 += x[12]
+			x13 += x[13]
+			x14 += x[14]
+			x15 += x[15]
+			if in != nil {
+				binary.LittleEndian.PutUint32(out[0:4], binary.LittleEndian.Uint32(in[0:4])^x0)
+				binary.LittleEndian.PutUint32(out[4:8], binary.LittleEndian.Uint32(in[4:8])^x1)
+				binary.LittleEndian.PutUint32(out[8:12], binary.LittleEndian.Uint32(in[8:12])^x2)
+				binary.LittleEndian.PutUint32(out[12:16], binary.LittleEndian.Uint32(in[12:16])^x3)
+				binary.LittleEndian.PutUint32(out[16:20], binary.LittleEndian.Uint32(in[16:20])^x4)
+				binary.LittleEndian.PutUint32(out[20:24], binary.LittleEndian.Uint32(in[20:24])^x5)
+				binary.LittleEndian.PutUint32(out[24:28], binary.LittleEndian.Uint32(in[24:28])^x6)
+				binary.LittleEndian.PutUint32(out[28:32], binary.LittleEndian.Uint32(in[28:32])^x7)
+				binary.LittleEndian.PutUint32(out[32:36], binary.LittleEndian.Uint32(in[32:36])^x8)
+				binary.LittleEndian.PutUint32(out[36:40], binary.LittleEndian.Uint32(in[36:40])^x9)
+				binary.LittleEndian.PutUint32(out[40:44], binary.LittleEndian.Uint32(in[40:44])^x10)
+				binary.LittleEndian.PutUint32(out[44:48], binary.LittleEndian.Uint32(in[44:48])^x11)
+				binary.LittleEndian.PutUint32(out[48:52], binary.LittleEndian.Uint32(in[48:52])^x12)
+				binary.LittleEndian.PutUint32(out[52:56], binary.LittleEndian.Uint32(in[52:56])^x13)
+				binary.LittleEndian.PutUint32(out[56:60], binary.LittleEndian.Uint32(in[56:60])^x14)
+				binary.LittleEndian.PutUint32(out[60:64], binary.LittleEndian.Uint32(in[60:64])^x15)
+				in = in[BlockSize:]
+			} else {
+				binary.LittleEndian.PutUint32(out[0:4], x0)
+				binary.LittleEndian.PutUint32(out[4:8], x1)
+				binary.LittleEndian.PutUint32(out[8:12], x2)
+				binary.LittleEndian.PutUint32(out[12:16], x3)
+				binary.LittleEndian.PutUint32(out[16:20], x4)
+				binary.LittleEndian.PutUint32(out[20:24], x5)
+				binary.LittleEndian.PutUint32(out[24:28], x6)
+				binary.LittleEndian.PutUint32(out[28:32], x7)
+				binary.LittleEndian.PutUint32(out[32:36], x8)
+				binary.LittleEndian.PutUint32(out[36:40], x9)
+				binary.LittleEndian.PutUint32(out[40:44], x10)
+				binary.LittleEndian.PutUint32(out[44:48], x11)
+				binary.LittleEndian.PutUint32(out[48:52], x12)
+				binary.LittleEndian.PutUint32(out[52:56], x13)
+				binary.LittleEndian.PutUint32(out[56:60], x14)
+				binary.LittleEndian.PutUint32(out[60:64], x15)
+			}
+			out = out[BlockSize:]
+		}
+
+		// Stoping at 2^70 bytes per nonce is the user's responsibility.
+		ctr := uint64(x[13])<<32 | uint64(x[12])
+		ctr++
+		x[12] = uint32(ctr)
+		x[13] = uint32(ctr >> 32)
+	}
+}
+
+func hChaChaRef(x *[stateSize]uint32, out *[32]byte) {
+	x0, x1, x2, x3 := sigma0, sigma1, sigma2, sigma3
+	x4, x5, x6, x7, x8, x9, x10, x11, x12, x13, x14, x15 := x[0], x[1], x[2], x[3], x[4], x[5], x[6], x[7], x[8], x[9], x[10], x[11]
+
+	for i := chachaRounds; i > 0; i -= 2 {
+		// quarterround(x, 0, 4, 8, 12)
+		x0 += x4
+		x12 ^= x0
+		x12 = bits.RotateLeft32(x12, 16)
+		x8 += x12
+		x4 ^= x8
+		x4 = bits.RotateLeft32(x4, 12)
+		x0 += x4
+		x12 ^= x0
+		x12 = bits.RotateLeft32(x12, 8)
+		x8 += x12
+		x4 ^= x8
+		x4 = bits.RotateLeft32(x4, 7)
+
+		// quarterround(x, 1, 5, 9, 13)
+		x1 += x5
+		x13 ^= x1
+		x13 = bits.RotateLeft32(x13, 16)
+		x9 += x13
+		x5 ^= x9
+		x5 = bits.RotateLeft32(x5, 12)
+		x1 += x5
+		x13 ^= x1
+		x13 = bits.RotateLeft32(x13, 8)
+		x9 += x13
+		x5 ^= x9
+		x5 = bits.RotateLeft32(x5, 7)
+
+		// quarterround(x, 2, 6, 10, 14)
+		x2 += x6
+		x14 ^= x2
+		x14 = bits.RotateLeft32(x14, 16)
+		x10 += x14
+		x6 ^= x10
+		x6 = bits.RotateLeft32(x6, 12)
+		x2 += x6
+		x14 ^= x2
+		x14 = bits.RotateLeft32(x14, 8)
+		x10 += x14
+		x6 ^= x10
+		x6 = bits.RotateLeft32(x6, 7)
+
+		// quarterround(x, 3, 7, 11, 15)
+		x3 += x7
+		x15 ^= x3
+		x15 = bits.RotateLeft32(x15, 16)
+		x11 += x15
+		x7 ^= x11
+		x7 = bits.RotateLeft32(x7, 12)
+		x3 += x7
+		x15 ^= x3
+		x15 = bits.RotateLeft32(x15, 8)
+		x11 += x15
+		x7 ^= x11
+		x7 = bits.RotateLeft32(x7, 7)
+
+		// quarterround(x, 0, 5, 10, 15)
+		x0 += x5
+		x15 ^= x0
+		x15 = bits.RotateLeft32(x15, 16)
+		x10 += x15
+		x5 ^= x10
+		x5 = bits.RotateLeft32(x5, 12)
+		x0 += x5
+		x15 ^= x0
+		x15 = bits.RotateLeft32(x15, 8)
+		x10 += x15
+		x5 ^= x10
+		x5 = bits.RotateLeft32(x5, 7)
+
+		// quarterround(x, 1, 6, 11, 12)
+		x1 += x6
+		x12 ^= x1
+		x12 = bits.RotateLeft32(x12, 16)
+		x11 += x12
+		x6 ^= x11
+		x6 = bits.RotateLeft32(x6, 12)
+		x1 += x6
+		x12 ^= x1
+		x12 = bits.RotateLeft32(x12, 8)
+		x11 += x12
+		x6 ^= x11
+		x6 = bits.RotateLeft32(x6, 7)
+
+		// quarterround(x, 2, 7, 8, 13)
+		x2 += x7
+		x13 ^= x2
+		x13 = bits.RotateLeft32(x13, 16)
+		x8 += x13
+		x7 ^= x8
+		x7 = bits.RotateLeft32(x7, 12)
+		x2 += x7
+		x13 ^= x2
+		x13 = bits.RotateLeft32(x13, 8)
+		x8 += x13
+		x7 ^= x8
+		x7 = bits.RotateLeft32(x7, 7)
+
+		// quarterround(x, 3, 4, 9, 14)
+		x3 += x4
+		x14 ^= x3
+		x14 = bits.RotateLeft32(x14, 16)
+		x9 += x14
+		x4 ^= x9
+		x4 = bits.RotateLeft32(x4, 12)
+		x3 += x4
+		x14 ^= x3
+		x14 = bits.RotateLeft32(x14, 8)
+		x9 += x14
+		x4 ^= x9
+		x4 = bits.RotateLeft32(x4, 7)
+	}
+
+	// HChaCha returns x0...x3 | x12...x15, which corresponds to the
+	// indexes of the ChaCha constant and the indexes of the IV.
+	if useUnsafe {
+		outArr := (*[16]uint32)(unsafe.Pointer(&out[0]))
+		outArr[0] = x0
+		outArr[1] = x1
+		outArr[2] = x2
+		outArr[3] = x3
+		outArr[4] = x12
+		outArr[5] = x13
+		outArr[6] = x14
+		outArr[7] = x15
+	} else {
+		binary.LittleEndian.PutUint32(out[0:4], x0)
+		binary.LittleEndian.PutUint32(out[4:8], x1)
+		binary.LittleEndian.PutUint32(out[8:12], x2)
+		binary.LittleEndian.PutUint32(out[12:16], x3)
+		binary.LittleEndian.PutUint32(out[16:20], x12)
+		binary.LittleEndian.PutUint32(out[20:24], x13)
+		binary.LittleEndian.PutUint32(out[24:28], x14)
+		binary.LittleEndian.PutUint32(out[28:32], x15)
+	}
+	return
+}

vendor/github.com/juju/ratelimit/LICENSE

@@ -0,0 +1,191 @@
+All files in this repository are licensed as follows. If you contribute
+to this repository, it is assumed that you license your contribution
+under the same license unless you state otherwise.
+
+All files Copyright (C) 2015 Canonical Ltd. unless otherwise specified in the file.
+
+This software is licensed under the LGPLv3, included below.
+
+As a special exception to the GNU Lesser General Public License version 3
+("LGPL3"), the copyright holders of this Library give you permission to
+convey to a third party a Combined Work that links statically or dynamically
+to this Library without providing any Minimal Corresponding Source or
+Minimal Application Code as set out in 4d or providing the installation
+information set out in section 4e, provided that you comply with the other
+provisions of LGPL3 and provided that you meet, for the Application the
+terms and conditions of the license(s) which apply to the Application.
+
+Except as stated in this special exception, the provisions of LGPL3 will
+continue to comply in full to this Library. If you modify this Library, you
+may apply this exception to your version of this Library, but you are not
+obliged to do so. If you do not wish to do so, delete this exception
+statement from your version. This exception does not (and cannot) modify any
+license terms which apply to the Application, with which you must still
+comply.
+
+
+                   GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+
+  This version of the GNU Lesser General Public License incorporates
+the terms and conditions of version 3 of the GNU General Public
+License, supplemented by the additional permissions listed below.
+
+  0. Additional Definitions.
+
+  As used herein, "this License" refers to version 3 of the GNU Lesser
+General Public License, and the "GNU GPL" refers to version 3 of the GNU
+General Public License.
+
+  "The Library" refers to a covered work governed by this License,
+other than an Application or a Combined Work as defined below.
+
+  An "Application" is any work that makes use of an interface provided
+by the Library, but which is not otherwise based on the Library.
+Defining a subclass of a class defined by the Library is deemed a mode
+of using an interface provided by the Library.
+
+  A "Combined Work" is a work produced by combining or linking an
+Application with the Library.  The particular version of the Library
+with which the Combined Work was made is also called the "Linked
+Version".
+
+  The "Minimal Corresponding Source" for a Combined Work means the
+Corresponding Source for the Combined Work, excluding any source code
+for portions of the Combined Work that, considered in isolation, are
+based on the Application, and not on the Linked Version.
+
+  The "Corresponding Application Code" for a Combined Work means the
+object code and/or source code for the Application, including any data
+and utility programs needed for reproducing the Combined Work from the
+Application, but excluding the System Libraries of the Combined Work.
+
+  1. Exception to Section 3 of the GNU GPL.
+
+  You may convey a covered work under sections 3 and 4 of this License
+without being bound by section 3 of the GNU GPL.
+
+  2. Conveying Modified Versions.
+
+  If you modify a copy of the Library, and, in your modifications, a
+facility refers to a function or data to be supplied by an Application
+that uses the facility (other than as an argument passed when the
+facility is invoked), then you may convey a copy of the modified
+version:
+
+   a) under this License, provided that you make a good faith effort to
+   ensure that, in the event an Application does not supply the
+   function or data, the facility still operates, and performs
+   whatever part of its purpose remains meaningful, or
+
+   b) under the GNU GPL, with none of the additional permissions of
+   this License applicable to that copy.
+
+  3. Object Code Incorporating Material from Library Header Files.
+
+  The object code form of an Application may incorporate material from
+a header file that is part of the Library.  You may convey such object
+code under terms of your choice, provided that, if the incorporated
+material is not limited to numerical parameters, data structure
+layouts and accessors, or small macros, inline functions and templates
+(ten or fewer lines in length), you do both of the following:
+
+   a) Give prominent notice with each copy of the object code that the
+   Library is used in it and that the Library and its use are
+   covered by this License.
+
+   b) Accompany the object code with a copy of the GNU GPL and this license
+   document.
+
+  4. Combined Works.
+
+  You may convey a Combined Work under terms of your choice that,
+taken together, effectively do not restrict modification of the
+portions of the Library contained in the Combined Work and reverse
+engineering for debugging such modifications, if you also do each of
+the following:
+
+   a) Give prominent notice with each copy of the Combined Work that
+   the Library is used in it and that the Library and its use are
+   covered by this License.
+
+   b) Accompany the Combined Work with a copy of the GNU GPL and this license
+   document.
+
+   c) For a Combined Work that displays copyright notices during
+   execution, include the copyright notice for the Library among
+   these notices, as well as a reference directing the user to the
+   copies of the GNU GPL and this license document.
+
+   d) Do one of the following:
+
+       0) Convey the Minimal Corresponding Source under the terms of this
+       License, and the Corresponding Application Code in a form
+       suitable for, and under terms that permit, the user to
+       recombine or relink the Application with a modified version of
+       the Linked Version to produce a modified Combined Work, in the
+       manner specified by section 6 of the GNU GPL for conveying
+       Corresponding Source.
+
+       1) Use a suitable shared library mechanism for linking with the
+       Library.  A suitable mechanism is one that (a) uses at run time
+       a copy of the Library already present on the user's computer
+       system, and (b) will operate properly with a modified version
+       of the Library that is interface-compatible with the Linked
+       Version.
+
+   e) Provide Installation Information, but only if you would otherwise
+   be required to provide such information under section 6 of the
+   GNU GPL, and only to the extent that such information is
+   necessary to install and execute a modified version of the
+   Combined Work produced by recombining or relinking the
+   Application with a modified version of the Linked Version. (If
+   you use option 4d0, the Installation Information must accompany
+   the Minimal Corresponding Source and Corresponding Application
+   Code. If you use option 4d1, you must provide the Installation
+   Information in the manner specified by section 6 of the GNU GPL
+   for conveying Corresponding Source.)
+
+  5. Combined Libraries.
+
+  You may place library facilities that are a work based on the
+Library side by side in a single library together with other library
+facilities that are not Applications and are not covered by this
+License, and convey such a combined library under terms of your
+choice, if you do both of the following:
+
+   a) Accompany the combined library with a copy of the same work based
+   on the Library, uncombined with any other library facilities,
+   conveyed under the terms of this License.
+
+   b) Give prominent notice with the combined library that part of it
+   is a work based on the Library, and explaining where to find the
+   accompanying uncombined form of the same work.
+
+  6. Revised Versions of the GNU Lesser General Public License.
+
+  The Free Software Foundation may publish revised and/or new versions
+of the GNU Lesser General Public License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns.
+
+  Each version is given a distinguishing version number. If the
+Library as you received it specifies that a certain numbered version
+of the GNU Lesser General Public License "or any later version"
+applies to it, you have the option of following the terms and
+conditions either of that published version or of any later version
+published by the Free Software Foundation. If the Library as you
+received it does not specify a version number of the GNU Lesser
+General Public License, you may choose any version of the GNU Lesser
+General Public License ever published by the Free Software Foundation.
+
+  If the Library as you received it specifies that a proxy can decide
+whether future versions of the GNU Lesser General Public License shall
+apply, that proxy's public statement of acceptance of any version is
+permanent authorization for you to choose that version for the
+Library.

vendor/github.com/juju/ratelimit/README.md

@@ -0,0 +1,117 @@
+# ratelimit
+--
+    import "github.com/juju/ratelimit"
+
+The ratelimit package provides an efficient token bucket implementation. See
+http://en.wikipedia.org/wiki/Token_bucket.
+
+## Usage
+
+#### func  Reader
+
+```go
+func Reader(r io.Reader, bucket *Bucket) io.Reader
+```
+Reader returns a reader that is rate limited by the given token bucket. Each
+token in the bucket represents one byte.
+
+#### func  Writer
+
+```go
+func Writer(w io.Writer, bucket *Bucket) io.Writer
+```
+Writer returns a writer that is rate limited by the given token bucket. Each
+token in the bucket represents one byte.
+
+#### type Bucket
+
+```go
+type Bucket struct {
+}
+```
+
+Bucket represents a token bucket that fills at a predetermined rate. Methods on
+Bucket may be called concurrently.
+
+#### func  NewBucket
+
+```go
+func NewBucket(fillInterval time.Duration, capacity int64) *Bucket
+```
+NewBucket returns a new token bucket that fills at the rate of one token every
+fillInterval, up to the given maximum capacity. Both arguments must be positive.
+The bucket is initially full.
+
+#### func  NewBucketWithQuantum
+
+```go
+func NewBucketWithQuantum(fillInterval time.Duration, capacity, quantum int64) *Bucket
+```
+NewBucketWithQuantum is similar to NewBucket, but allows the specification of
+the quantum size - quantum tokens are added every fillInterval.
+
+#### func  NewBucketWithRate
+
+```go
+func NewBucketWithRate(rate float64, capacity int64) *Bucket
+```
+NewBucketWithRate returns a token bucket that fills the bucket at the rate of
+rate tokens per second up to the given maximum capacity. Because of limited
+clock resolution, at high rates, the actual rate may be up to 1% different from
+the specified rate.
+
+#### func (*Bucket) Rate
+
+```go
+func (tb *Bucket) Rate() float64
+```
+Rate returns the fill rate of the bucket, in tokens per second.
+
+#### func (*Bucket) Take
+
+```go
+func (tb *Bucket) Take(count int64) time.Duration
+```
+Take takes count tokens from the bucket without blocking. It returns the time
+that the caller should wait until the tokens are actually available.
+
+Note that if the request is irrevocable - there is no way to return tokens to
+the bucket once this method commits us to taking them.
+
+#### func (*Bucket) TakeAvailable
+
+```go
+func (tb *Bucket) TakeAvailable(count int64) int64
+```
+TakeAvailable takes up to count immediately available tokens from the bucket. It
+returns the number of tokens removed, or zero if there are no available tokens.
+It does not block.
+
+#### func (*Bucket) TakeMaxDuration
+
+```go
+func (tb *Bucket) TakeMaxDuration(count int64, maxWait time.Duration) (time.Duration, bool)
+```
+TakeMaxDuration is like Take, except that it will only take tokens from the
+bucket if the wait time for the tokens is no greater than maxWait.
+
+If it would take longer than maxWait for the tokens to become available, it does
+nothing and reports false, otherwise it returns the time that the caller should
+wait until the tokens are actually available, and reports true.
+
+#### func (*Bucket) Wait
+
+```go
+func (tb *Bucket) Wait(count int64)
+```
+Wait takes count tokens from the bucket, waiting until they are available.
+
+#### func (*Bucket) WaitMaxDuration
+
+```go
+func (tb *Bucket) WaitMaxDuration(count int64, maxWait time.Duration) bool
+```
+WaitMaxDuration is like Wait except that it will only take tokens from the
+bucket if it needs to wait for no greater than maxWait. It reports whether any
+tokens have been removed from the bucket If no tokens have been removed, it
+returns immediately.

vendor/github.com/juju/ratelimit/ratelimit.go

@@ -0,0 +1,344 @@
+// Copyright 2014 Canonical Ltd.
+// Licensed under the LGPLv3 with static-linking exception.
+// See LICENCE file for details.
+
+// Package ratelimit provides an efficient token bucket implementation
+// that can be used to limit the rate of arbitrary things.
+// See http://en.wikipedia.org/wiki/Token_bucket.
+package ratelimit
+
+import (
+	"math"
+	"strconv"
+	"sync"
+	"time"
+)
+
+// The algorithm that this implementation uses does computational work
+// only when tokens are removed from the bucket, and that work completes
+// in short, bounded-constant time (Bucket.Wait benchmarks at 175ns on
+// my laptop).
+//
+// Time is measured in equal measured ticks, a given interval
+// (fillInterval) apart. On each tick a number of tokens (quantum) are
+// added to the bucket.
+//
+// When any of the methods are called the bucket updates the number of
+// tokens that are in the bucket, and it records the current tick
+// number too. Note that it doesn't record the current time - by
+// keeping things in units of whole ticks, it's easy to dish out tokens
+// at exactly the right intervals as measured from the start time.
+//
+// This allows us to calculate the number of tokens that will be
+// available at some time in the future with a few simple arithmetic
+// operations.
+//
+// The main reason for being able to transfer multiple tokens on each tick
+// is so that we can represent rates greater than 1e9 (the resolution of the Go
+// time package) tokens per second, but it's also useful because
+// it means we can easily represent situations like "a person gets
+// five tokens an hour, replenished on the hour".
+
+// Bucket represents a token bucket that fills at a predetermined rate.
+// Methods on Bucket may be called concurrently.
+type Bucket struct {
+	clock Clock
+
+	// startTime holds the moment when the bucket was
+	// first created and ticks began.
+	startTime time.Time
+
+	// capacity holds the overall capacity of the bucket.
+	capacity int64
+
+	// quantum holds how many tokens are added on
+	// each tick.
+	quantum int64
+
+	// fillInterval holds the interval between each tick.
+	fillInterval time.Duration
+
+	// mu guards the fields below it.
+	mu sync.Mutex
+
+	// availableTokens holds the number of available
+	// tokens as of the associated latestTick.
+	// It will be negative when there are consumers
+	// waiting for tokens.
+	availableTokens int64
+
+	// latestTick holds the latest tick for which
+	// we know the number of tokens in the bucket.
+	latestTick int64
+}
+
+// NewBucket returns a new token bucket that fills at the
+// rate of one token every fillInterval, up to the given
+// maximum capacity. Both arguments must be
+// positive. The bucket is initially full.
+func NewBucket(fillInterval time.Duration, capacity int64) *Bucket {
+	return NewBucketWithClock(fillInterval, capacity, nil)
+}
+
+// NewBucketWithClock is identical to NewBucket but injects a testable clock
+// interface.
+func NewBucketWithClock(fillInterval time.Duration, capacity int64, clock Clock) *Bucket {
+	return NewBucketWithQuantumAndClock(fillInterval, capacity, 1, clock)
+}
+
+// rateMargin specifes the allowed variance of actual
+// rate from specified rate. 1% seems reasonable.
+const rateMargin = 0.01
+
+// NewBucketWithRate returns a token bucket that fills the bucket
+// at the rate of rate tokens per second up to the given
+// maximum capacity. Because of limited clock resolution,
+// at high rates, the actual rate may be up to 1% different from the
+// specified rate.
+func NewBucketWithRate(rate float64, capacity int64) *Bucket {
+	return NewBucketWithRateAndClock(rate, capacity, nil)
+}
+
+// NewBucketWithRateAndClock is identical to NewBucketWithRate but injects a
+// testable clock interface.
+func NewBucketWithRateAndClock(rate float64, capacity int64, clock Clock) *Bucket {
+	// Use the same bucket each time through the loop
+	// to save allocations.
+	tb := NewBucketWithQuantumAndClock(1, capacity, 1, clock)
+	for quantum := int64(1); quantum < 1<<50; quantum = nextQuantum(quantum) {
+		fillInterval := time.Duration(1e9 * float64(quantum) / rate)
+		if fillInterval <= 0 {
+			continue
+		}
+		tb.fillInterval = fillInterval
+		tb.quantum = quantum
+		if diff := math.Abs(tb.Rate() - rate); diff/rate <= rateMargin {
+			return tb
+		}
+	}
+	panic("cannot find suitable quantum for " + strconv.FormatFloat(rate, 'g', -1, 64))
+}
+
+// nextQuantum returns the next quantum to try after q.
+// We grow the quantum exponentially, but slowly, so we
+// get a good fit in the lower numbers.
+func nextQuantum(q int64) int64 {
+	q1 := q * 11 / 10
+	if q1 == q {
+		q1++
+	}
+	return q1
+}
+
+// NewBucketWithQuantum is similar to NewBucket, but allows
+// the specification of the quantum size - quantum tokens
+// are added every fillInterval.
+func NewBucketWithQuantum(fillInterval time.Duration, capacity, quantum int64) *Bucket {
+	return NewBucketWithQuantumAndClock(fillInterval, capacity, quantum, nil)
+}
+
+// NewBucketWithQuantumAndClock is like NewBucketWithQuantum, but
+// also has a clock argument that allows clients to fake the passing
+// of time. If clock is nil, the system clock will be used.
+func NewBucketWithQuantumAndClock(fillInterval time.Duration, capacity, quantum int64, clock Clock) *Bucket {
+	if clock == nil {
+		clock = realClock{}
+	}
+	if fillInterval <= 0 {
+		panic("token bucket fill interval is not > 0")
+	}
+	if capacity <= 0 {
+		panic("token bucket capacity is not > 0")
+	}
+	if quantum <= 0 {
+		panic("token bucket quantum is not > 0")
+	}
+	return &Bucket{
+		clock:           clock,
+		startTime:       clock.Now(),
+		latestTick:      0,
+		fillInterval:    fillInterval,
+		capacity:        capacity,
+		quantum:         quantum,
+		availableTokens: capacity,
+	}
+}
+
+// Wait takes count tokens from the bucket, waiting until they are
+// available.
+func (tb *Bucket) Wait(count int64) {
+	if d := tb.Take(count); d > 0 {
+		tb.clock.Sleep(d)
+	}
+}
+
+// WaitMaxDuration is like Wait except that it will
+// only take tokens from the bucket if it needs to wait
+// for no greater than maxWait. It reports whether
+// any tokens have been removed from the bucket
+// If no tokens have been removed, it returns immediately.
+func (tb *Bucket) WaitMaxDuration(count int64, maxWait time.Duration) bool {
+	d, ok := tb.TakeMaxDuration(count, maxWait)
+	if d > 0 {
+		tb.clock.Sleep(d)
+	}
+	return ok
+}
+
+const infinityDuration time.Duration = 0x7fffffffffffffff
+
+// Take takes count tokens from the bucket without blocking. It returns
+// the time that the caller should wait until the tokens are actually
+// available.
+//
+// Note that if the request is irrevocable - there is no way to return
+// tokens to the bucket once this method commits us to taking them.
+func (tb *Bucket) Take(count int64) time.Duration {
+	tb.mu.Lock()
+	defer tb.mu.Unlock()
+	d, _ := tb.take(tb.clock.Now(), count, infinityDuration)
+	return d
+}
+
+// TakeMaxDuration is like Take, except that
+// it will only take tokens from the bucket if the wait
+// time for the tokens is no greater than maxWait.
+//
+// If it would take longer than maxWait for the tokens
+// to become available, it does nothing and reports false,
+// otherwise it returns the time that the caller should
+// wait until the tokens are actually available, and reports
+// true.
+func (tb *Bucket) TakeMaxDuration(count int64, maxWait time.Duration) (time.Duration, bool) {
+	tb.mu.Lock()
+	defer tb.mu.Unlock()
+	return tb.take(tb.clock.Now(), count, maxWait)
+}
+
+// TakeAvailable takes up to count immediately available tokens from the
+// bucket. It returns the number of tokens removed, or zero if there are
+// no available tokens. It does not block.
+func (tb *Bucket) TakeAvailable(count int64) int64 {
+	tb.mu.Lock()
+	defer tb.mu.Unlock()
+	return tb.takeAvailable(tb.clock.Now(), count)
+}
+
+// takeAvailable is the internal version of TakeAvailable - it takes the
+// current time as an argument to enable easy testing.
+func (tb *Bucket) takeAvailable(now time.Time, count int64) int64 {
+	if count <= 0 {
+		return 0
+	}
+	tb.adjustavailableTokens(tb.currentTick(now))
+	if tb.availableTokens <= 0 {
+		return 0
+	}
+	if count > tb.availableTokens {
+		count = tb.availableTokens
+	}
+	tb.availableTokens -= count
+	return count
+}
+
+// Available returns the number of available tokens. It will be negative
+// when there are consumers waiting for tokens. Note that if this
+// returns greater than zero, it does not guarantee that calls that take
+// tokens from the buffer will succeed, as the number of available
+// tokens could have changed in the meantime. This method is intended
+// primarily for metrics reporting and debugging.
+func (tb *Bucket) Available() int64 {
+	return tb.available(tb.clock.Now())
+}
+
+// available is the internal version of available - it takes the current time as
+// an argument to enable easy testing.
+func (tb *Bucket) available(now time.Time) int64 {
+	tb.mu.Lock()
+	defer tb.mu.Unlock()
+	tb.adjustavailableTokens(tb.currentTick(now))
+	return tb.availableTokens
+}
+
+// Capacity returns the capacity that the bucket was created with.
+func (tb *Bucket) Capacity() int64 {
+	return tb.capacity
+}
+
+// Rate returns the fill rate of the bucket, in tokens per second.
+func (tb *Bucket) Rate() float64 {
+	return 1e9 * float64(tb.quantum) / float64(tb.fillInterval)
+}
+
+// take is the internal version of Take - it takes the current time as
+// an argument to enable easy testing.
+func (tb *Bucket) take(now time.Time, count int64, maxWait time.Duration) (time.Duration, bool) {
+	if count <= 0 {
+		return 0, true
+	}
+
+	tick := tb.currentTick(now)
+	tb.adjustavailableTokens(tick)
+	avail := tb.availableTokens - count
+	if avail >= 0 {
+		tb.availableTokens = avail
+		return 0, true
+	}
+	// Round up the missing tokens to the nearest multiple
+	// of quantum - the tokens won't be available until
+	// that tick.
+
+	// endTick holds the tick when all the requested tokens will
+	// become available.
+	endTick := tick + (-avail+tb.quantum-1)/tb.quantum
+	endTime := tb.startTime.Add(time.Duration(endTick) * tb.fillInterval)
+	waitTime := endTime.Sub(now)
+	if waitTime > maxWait {
+		return 0, false
+	}
+	tb.availableTokens = avail
+	return waitTime, true
+}
+
+// currentTick returns the current time tick, measured
+// from tb.startTime.
+func (tb *Bucket) currentTick(now time.Time) int64 {
+	return int64(now.Sub(tb.startTime) / tb.fillInterval)
+}
+
+// adjustavailableTokens adjusts the current number of tokens
+// available in the bucket at the given time, which must
+// be in the future (positive) with respect to tb.latestTick.
+func (tb *Bucket) adjustavailableTokens(tick int64) {
+	if tb.availableTokens >= tb.capacity {
+		return
+	}
+	tb.availableTokens += (tick - tb.latestTick) * tb.quantum
+	if tb.availableTokens > tb.capacity {
+		tb.availableTokens = tb.capacity
+	}
+	tb.latestTick = tick
+	return
+}
+
+// Clock represents the passage of time in a way that
+// can be faked out for tests.
+type Clock interface {
+	// Now returns the current time.
+	Now() time.Time
+	// Sleep sleeps for at least the given duration.
+	Sleep(d time.Duration)
+}
+
+// realClock implements Clock in terms of standard time functions.
+type realClock struct{}
+
+// Now implements Clock.Now by calling time.Now.
+func (realClock) Now() time.Time {
+	return time.Now()
+}
+
+// Now implements Clock.Sleep by calling time.Sleep.
+func (realClock) Sleep(d time.Duration) {
+	time.Sleep(d)
+}

vendor/github.com/juju/ratelimit/reader.go

@@ -0,0 +1,51 @@
+// Copyright 2014 Canonical Ltd.
+// Licensed under the LGPLv3 with static-linking exception.
+// See LICENCE file for details.
+
+package ratelimit
+
+import "io"
+
+type reader struct {
+	r      io.Reader
+	bucket *Bucket
+}
+
+// Reader returns a reader that is rate limited by
+// the given token bucket. Each token in the bucket
+// represents one byte.
+func Reader(r io.Reader, bucket *Bucket) io.Reader {
+	return &reader{
+		r:      r,
+		bucket: bucket,
+	}
+}
+
+func (r *reader) Read(buf []byte) (int, error) {
+	n, err := r.r.Read(buf)
+	if n <= 0 {
+		return n, err
+	}
+	r.bucket.Wait(int64(n))
+	return n, err
+}
+
+type writer struct {
+	w      io.Writer
+	bucket *Bucket
+}
+
+// Writer returns a reader that is rate limited by
+// the given token bucket. Each token in the bucket
+// represents one byte.
+func Writer(w io.Writer, bucket *Bucket) io.Writer {
+	return &writer{
+		w:      w,
+		bucket: bucket,
+	}
+}
+
+func (w *writer) Write(buf []byte) (int, error) {
+	w.bucket.Wait(int64(len(buf)))
+	return w.w.Write(buf)
+}

vendor/golang.org/x/sys/AUTHORS

@@ -0,0 +1,3 @@
+# This source code refers to The Go Authors for copyright purposes.
+# The master list of authors is in the main Go distribution,
+# visible at http://tip.golang.org/AUTHORS.

vendor/golang.org/x/sys/CONTRIBUTORS

@@ -0,0 +1,3 @@
+# This source code was written by the Go contributors.
+# The master list of contributors is in the main Go distribution,
+# visible at http://tip.golang.org/CONTRIBUTORS.

vendor/golang.org/x/sys/LICENSE

@@ -0,0 +1,27 @@
+Copyright (c) 2009 The Go Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

vendor/golang.org/x/sys/PATENTS

@@ -0,0 +1,22 @@
+Additional IP Rights Grant (Patents)
+
+"This implementation" means the copyrightable works distributed by
+Google as part of the Go project.
+
+Google hereby grants to You a perpetual, worldwide, non-exclusive,
+no-charge, royalty-free, irrevocable (except as stated in this section)
+patent license to make, have made, use, offer to sell, sell, import,
+transfer and otherwise run, modify and propagate the contents of this
+implementation of Go, where such license applies only to those patent
+claims, both currently owned or controlled by Google and acquired in
+the future, licensable by Google that are necessarily infringed by this
+implementation of Go.  This grant does not include claims that would be
+infringed only as a consequence of further modification of this
+implementation.  If you or your agent or exclusive licensee institute or
+order or agree to the institution of patent litigation against any
+entity (including a cross-claim or counterclaim in a lawsuit) alleging
+that this implementation of Go or any code incorporated within this
+implementation of Go constitutes direct or contributory patent
+infringement, or inducement of patent infringement, then any patent
+rights granted to you under this License for this implementation of Go
+shall terminate as of the date such litigation is filed.

vendor/golang.org/x/sys/unix/.gitignore

@@ -0,0 +1,2 @@
+_obj/
+unix.test

vendor/golang.org/x/sys/unix/README.md

@@ -0,0 +1,173 @@
+# Building `sys/unix`
+
+The sys/unix package provides access to the raw system call interface of the
+underlying operating system. See: https://godoc.org/golang.org/x/sys/unix
+
+Porting Go to a new architecture/OS combination or adding syscalls, types, or
+constants to an existing architecture/OS pair requires some manual effort;
+however, there are tools that automate much of the process.
+
+## Build Systems
+
+There are currently two ways we generate the necessary files. We are currently
+migrating the build system to use containers so the builds are reproducible.
+This is being done on an OS-by-OS basis. Please update this documentation as
+components of the build system change.
+
+### Old Build System (currently for `GOOS != "Linux" || GOARCH == "sparc64"`)
+
+The old build system generates the Go files based on the C header files
+present on your system. This means that files
+for a given GOOS/GOARCH pair must be generated on a system with that OS and
+architecture. This also means that the generated code can differ from system
+to system, based on differences in the header files.
+
+To avoid this, if you are using the old build system, only generate the Go
+files on an installation with unmodified header files. It is also important to
+keep track of which version of the OS the files were generated from (ex.
+Darwin 14 vs Darwin 15). This makes it easier to track the progress of changes
+and have each OS upgrade correspond to a single change.
+
+To build the files for your current OS and architecture, make sure GOOS and
+GOARCH are set correctly and run `mkall.sh`. This will generate the files for
+your specific system. Running `mkall.sh -n` shows the commands that will be run.
+
+Requirements: bash, perl, go
+
+### New Build System (currently for `GOOS == "Linux" && GOARCH != "sparc64"`)
+
+The new build system uses a Docker container to generate the go files directly
+from source checkouts of the kernel and various system libraries. This means
+that on any platform that supports Docker, all the files using the new build
+system can be generated at once, and generated files will not change based on
+what the person running the scripts has installed on their computer.
+
+The OS specific files for the new build system are located in the `${GOOS}`
+directory, and the build is coordinated by the `${GOOS}/mkall.go` program. When
+the kernel or system library updates, modify the Dockerfile at
+`${GOOS}/Dockerfile` to checkout the new release of the source.
+
+To build all the files under the new build system, you must be on an amd64/Linux
+system and have your GOOS and GOARCH set accordingly. Running `mkall.sh` will
+then generate all of the files for all of the GOOS/GOARCH pairs in the new build
+system. Running `mkall.sh -n` shows the commands that will be run.
+
+Requirements: bash, perl, go, docker
+
+## Component files
+
+This section describes the various files used in the code generation process.
+It also contains instructions on how to modify these files to add a new
+architecture/OS or to add additional syscalls, types, or constants. Note that
+if you are using the new build system, the scripts cannot be called normally.
+They must be called from within the docker container.
+
+### asm files
+
+The hand-written assembly file at `asm_${GOOS}_${GOARCH}.s` implements system
+call dispatch. There are three entry points:
+```
+  func Syscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr)
+  func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr)
+  func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr)
+```
+The first and second are the standard ones; they differ only in how many
+arguments can be passed to the kernel. The third is for low-level use by the
+ForkExec wrapper. Unlike the first two, it does not call into the scheduler to
+let it know that a system call is running.
+
+When porting Go to an new architecture/OS, this file must be implemented for
+each GOOS/GOARCH pair.
+
+### mksysnum
+
+Mksysnum is a script located at `${GOOS}/mksysnum.pl` (or `mksysnum_${GOOS}.pl`
+for the old system). This script takes in a list of header files containing the
+syscall number declarations and parses them to produce the corresponding list of
+Go numeric constants. See `zsysnum_${GOOS}_${GOARCH}.go` for the generated
+constants.
+
+Adding new syscall numbers is mostly done by running the build on a sufficiently
+new installation of the target OS (or updating the source checkouts for the
+new build system). However, depending on the OS, you make need to update the
+parsing in mksysnum.
+
+### mksyscall.pl
+
+The `syscall.go`, `syscall_${GOOS}.go`, `syscall_${GOOS}_${GOARCH}.go` are
+hand-written Go files which implement system calls (for unix, the specific OS,
+or the specific OS/Architecture pair respectively) that need special handling
+and list `//sys` comments giving prototypes for ones that can be generated.
+
+The mksyscall.pl script takes the `//sys` and `//sysnb` comments and converts
+them into syscalls. This requires the name of the prototype in the comment to
+match a syscall number in the `zsysnum_${GOOS}_${GOARCH}.go` file. The function
+prototype can be exported (capitalized) or not.
+
+Adding a new syscall often just requires adding a new `//sys` function prototype
+with the desired arguments and a capitalized name so it is exported. However, if
+you want the interface to the syscall to be different, often one will make an
+unexported `//sys` prototype, an then write a custom wrapper in
+`syscall_${GOOS}.go`.
+
+### types files
+
+For each OS, there is a hand-written Go file at `${GOOS}/types.go` (or
+`types_${GOOS}.go` on the old system). This file includes standard C headers and
+creates Go type aliases to the corresponding C types. The file is then fed
+through godef to get the Go compatible definitions. Finally, the generated code
+is fed though mkpost.go to format the code correctly and remove any hidden or
+private identifiers. This cleaned-up code is written to
+`ztypes_${GOOS}_${GOARCH}.go`.
+
+The hardest part about preparing this file is figuring out which headers to
+include and which symbols need to be `#define`d to get the actual data
+structures that pass through to the kernel system calls. Some C libraries
+preset alternate versions for binary compatibility and translate them on the
+way in and out of system calls, but there is almost always a `#define` that can
+get the real ones.
+See `types_darwin.go` and `linux/types.go` for examples.
+
+To add a new type, add in the necessary include statement at the top of the
+file (if it is not already there) and add in a type alias line. Note that if
+your type is significantly different on different architectures, you may need
+some `#if/#elif` macros in your include statements.
+
+### mkerrors.sh
+
+This script is used to generate the system's various constants. This doesn't
+just include the error numbers and error strings, but also the signal numbers
+an a wide variety of miscellaneous constants. The constants come from the list
+of include files in the `includes_${uname}` variable. A regex then picks out
+the desired `#define` statements, and generates the corresponding Go constants.
+The error numbers and strings are generated from `#include <errno.h>`, and the
+signal numbers and strings are generated from `#include <signal.h>`. All of
+these constants are written to `zerrors_${GOOS}_${GOARCH}.go` via a C program,
+`_errors.c`, which prints out all the constants.
+
+To add a constant, add the header that includes it to the appropriate variable.
+Then, edit the regex (if necessary) to match the desired constant. Avoid making
+the regex too broad to avoid matching unintended constants.
+
+
+## Generated files
+
+### `zerror_${GOOS}_${GOARCH}.go`
+
+A file containing all of the system's generated error numbers, error strings,
+signal numbers, and constants. Generated by `mkerrors.sh` (see above).
+
+### `zsyscall_${GOOS}_${GOARCH}.go`
+
+A file containing all the generated syscalls for a specific GOOS and GOARCH.
+Generated by `mksyscall.pl` (see above).
+
+### `zsysnum_${GOOS}_${GOARCH}.go`
+
+A list of numeric constants for all the syscall number of the specific GOOS
+and GOARCH. Generated by mksysnum (see above).
+
+### `ztypes_${GOOS}_${GOARCH}.go`
+
+A file containing Go types for passing into (or returning from) syscalls.
+Generated by godefs and the types file (see above).

vendor/golang.org/x/sys/unix/affinity_linux.go

@@ -0,0 +1,124 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// CPU affinity functions
+
+package unix
+
+import (
+	"unsafe"
+)
+
+const cpuSetSize = _CPU_SETSIZE / _NCPUBITS
+
+// CPUSet represents a CPU affinity mask.
+type CPUSet [cpuSetSize]cpuMask
+
+func schedAffinity(trap uintptr, pid int, set *CPUSet) error {
+	_, _, e := RawSyscall(trap, uintptr(pid), uintptr(unsafe.Sizeof(*set)), uintptr(unsafe.Pointer(set)))
+	if e != 0 {
+		return errnoErr(e)
+	}
+	return nil
+}
+
+// SchedGetaffinity gets the CPU affinity mask of the thread specified by pid.
+// If pid is 0 the calling thread is used.
+func SchedGetaffinity(pid int, set *CPUSet) error {
+	return schedAffinity(SYS_SCHED_GETAFFINITY, pid, set)
+}
+
+// SchedSetaffinity sets the CPU affinity mask of the thread specified by pid.
+// If pid is 0 the calling thread is used.
+func SchedSetaffinity(pid int, set *CPUSet) error {
+	return schedAffinity(SYS_SCHED_SETAFFINITY, pid, set)
+}
+
+// Zero clears the set s, so that it contains no CPUs.
+func (s *CPUSet) Zero() {
+	for i := range s {
+		s[i] = 0
+	}
+}
+
+func cpuBitsIndex(cpu int) int {
+	return cpu / _NCPUBITS
+}
+
+func cpuBitsMask(cpu int) cpuMask {
+	return cpuMask(1 << (uint(cpu) % _NCPUBITS))
+}
+
+// Set adds cpu to the set s.
+func (s *CPUSet) Set(cpu int) {
+	i := cpuBitsIndex(cpu)
+	if i < len(s) {
+		s[i] |= cpuBitsMask(cpu)
+	}
+}
+
+// Clear removes cpu from the set s.
+func (s *CPUSet) Clear(cpu int) {
+	i := cpuBitsIndex(cpu)
+	if i < len(s) {
+		s[i] &^= cpuBitsMask(cpu)
+	}
+}
+
+// IsSet reports whether cpu is in the set s.
+func (s *CPUSet) IsSet(cpu int) bool {
+	i := cpuBitsIndex(cpu)
+	if i < len(s) {
+		return s[i]&cpuBitsMask(cpu) != 0
+	}
+	return false
+}
+
+// Count returns the number of CPUs in the set s.
+func (s *CPUSet) Count() int {
+	c := 0
+	for _, b := range s {
+		c += onesCount64(uint64(b))
+	}
+	return c
+}
+
+// onesCount64 is a copy of Go 1.9's math/bits.OnesCount64.
+// Once this package can require Go 1.9, we can delete this
+// and update the caller to use bits.OnesCount64.
+func onesCount64(x uint64) int {
+	const m0 = 0x5555555555555555 // 01010101 ...
+	const m1 = 0x3333333333333333 // 00110011 ...
+	const m2 = 0x0f0f0f0f0f0f0f0f // 00001111 ...
+	const m3 = 0x00ff00ff00ff00ff // etc.
+	const m4 = 0x0000ffff0000ffff
+
+	// Implementation: Parallel summing of adjacent bits.
+	// See "Hacker's Delight", Chap. 5: Counting Bits.
+	// The following pattern shows the general approach:
+	//
+	//   x = x>>1&(m0&m) + x&(m0&m)
+	//   x = x>>2&(m1&m) + x&(m1&m)
+	//   x = x>>4&(m2&m) + x&(m2&m)
+	//   x = x>>8&(m3&m) + x&(m3&m)
+	//   x = x>>16&(m4&m) + x&(m4&m)
+	//   x = x>>32&(m5&m) + x&(m5&m)
+	//   return int(x)
+	//
+	// Masking (& operations) can be left away when there's no
+	// danger that a field's sum will carry over into the next
+	// field: Since the result cannot be > 64, 8 bits is enough
+	// and we can ignore the masks for the shifts by 8 and up.
+	// Per "Hacker's Delight", the first line can be simplified
+	// more, but it saves at best one instruction, so we leave
+	// it alone for clarity.
+	const m = 1<<64 - 1
+	x = x>>1&(m0&m) + x&(m0&m)
+	x = x>>2&(m1&m) + x&(m1&m)
+	x = (x>>4 + x) & (m2 & m)
+	x += x >> 8
+	x += x >> 16
+	x += x >> 32
+	return int(x) & (1<<7 - 1)
+}

vendor/golang.org/x/sys/unix/aliases.go

@@ -0,0 +1,14 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
+// +build go1.9
+
+package unix
+
+import "syscall"
+
+type Signal = syscall.Signal
+type Errno = syscall.Errno
+type SysProcAttr = syscall.SysProcAttr

vendor/golang.org/x/sys/unix/asm_darwin_386.s

@@ -0,0 +1,29 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System call support for 386, Darwin
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT	·Syscall(SB),NOSPLIT,$0-28
+	JMP	syscall·Syscall(SB)
+
+TEXT	·Syscall6(SB),NOSPLIT,$0-40
+	JMP	syscall·Syscall6(SB)
+
+TEXT	·Syscall9(SB),NOSPLIT,$0-52
+	JMP	syscall·Syscall9(SB)
+
+TEXT ·RawSyscall(SB),NOSPLIT,$0-28
+	JMP	syscall·RawSyscall(SB)
+
+TEXT	·RawSyscall6(SB),NOSPLIT,$0-40
+	JMP	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_darwin_amd64.s

@@ -0,0 +1,29 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System call support for AMD64, Darwin
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT	·Syscall(SB),NOSPLIT,$0-56
+	JMP	syscall·Syscall(SB)
+
+TEXT	·Syscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·Syscall6(SB)
+
+TEXT	·Syscall9(SB),NOSPLIT,$0-104
+	JMP	syscall·Syscall9(SB)
+
+TEXT	·RawSyscall(SB),NOSPLIT,$0-56
+	JMP	syscall·RawSyscall(SB)
+
+TEXT	·RawSyscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_darwin_arm.s

@@ -0,0 +1,30 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+// +build arm,darwin
+
+#include "textflag.h"
+
+//
+// System call support for ARM, Darwin
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT	·Syscall(SB),NOSPLIT,$0-28
+	B	syscall·Syscall(SB)
+
+TEXT	·Syscall6(SB),NOSPLIT,$0-40
+	B	syscall·Syscall6(SB)
+
+TEXT	·Syscall9(SB),NOSPLIT,$0-52
+	B	syscall·Syscall9(SB)
+
+TEXT	·RawSyscall(SB),NOSPLIT,$0-28
+	B	syscall·RawSyscall(SB)
+
+TEXT	·RawSyscall6(SB),NOSPLIT,$0-40
+	B	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_darwin_arm64.s

@@ -0,0 +1,30 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+// +build arm64,darwin
+
+#include "textflag.h"
+
+//
+// System call support for AMD64, Darwin
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT	·Syscall(SB),NOSPLIT,$0-56
+	B	syscall·Syscall(SB)
+
+TEXT	·Syscall6(SB),NOSPLIT,$0-80
+	B	syscall·Syscall6(SB)
+
+TEXT	·Syscall9(SB),NOSPLIT,$0-104
+	B	syscall·Syscall9(SB)
+
+TEXT	·RawSyscall(SB),NOSPLIT,$0-56
+	B	syscall·RawSyscall(SB)
+
+TEXT	·RawSyscall6(SB),NOSPLIT,$0-80
+	B	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_dragonfly_amd64.s

@@ -0,0 +1,29 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System call support for AMD64, DragonFly
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT	·Syscall(SB),NOSPLIT,$0-56
+	JMP	syscall·Syscall(SB)
+
+TEXT	·Syscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·Syscall6(SB)
+
+TEXT	·Syscall9(SB),NOSPLIT,$0-104
+	JMP	syscall·Syscall9(SB)
+
+TEXT ·RawSyscall(SB),NOSPLIT,$0-56
+	JMP	syscall·RawSyscall(SB)
+
+TEXT	·RawSyscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_freebsd_386.s

@@ -0,0 +1,29 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System call support for 386, FreeBSD
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT	·Syscall(SB),NOSPLIT,$0-28
+	JMP	syscall·Syscall(SB)
+
+TEXT	·Syscall6(SB),NOSPLIT,$0-40
+	JMP	syscall·Syscall6(SB)
+
+TEXT	·Syscall9(SB),NOSPLIT,$0-52
+	JMP	syscall·Syscall9(SB)
+
+TEXT ·RawSyscall(SB),NOSPLIT,$0-28
+	JMP	syscall·RawSyscall(SB)
+
+TEXT	·RawSyscall6(SB),NOSPLIT,$0-40
+	JMP	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_freebsd_amd64.s

@@ -0,0 +1,29 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System call support for AMD64, FreeBSD
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT	·Syscall(SB),NOSPLIT,$0-56
+	JMP	syscall·Syscall(SB)
+
+TEXT	·Syscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·Syscall6(SB)
+
+TEXT	·Syscall9(SB),NOSPLIT,$0-104
+	JMP	syscall·Syscall9(SB)
+
+TEXT ·RawSyscall(SB),NOSPLIT,$0-56
+	JMP	syscall·RawSyscall(SB)
+
+TEXT	·RawSyscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_freebsd_arm.s

@@ -0,0 +1,29 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System call support for ARM, FreeBSD
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT	·Syscall(SB),NOSPLIT,$0-28
+	B	syscall·Syscall(SB)
+
+TEXT	·Syscall6(SB),NOSPLIT,$0-40
+	B	syscall·Syscall6(SB)
+
+TEXT	·Syscall9(SB),NOSPLIT,$0-52
+	B	syscall·Syscall9(SB)
+
+TEXT	·RawSyscall(SB),NOSPLIT,$0-28
+	B	syscall·RawSyscall(SB)
+
+TEXT	·RawSyscall6(SB),NOSPLIT,$0-40
+	B	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_linux_386.s

@@ -0,0 +1,65 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System calls for 386, Linux
+//
+
+// See ../runtime/sys_linux_386.s for the reason why we always use int 0x80
+// instead of the glibc-specific "CALL 0x10(GS)".
+#define INVOKE_SYSCALL	INT	$0x80
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT ·Syscall(SB),NOSPLIT,$0-28
+	JMP	syscall·Syscall(SB)
+
+TEXT ·Syscall6(SB),NOSPLIT,$0-40
+	JMP	syscall·Syscall6(SB)
+
+TEXT ·SyscallNoError(SB),NOSPLIT,$0-24
+	CALL	runtime·entersyscall(SB)
+	MOVL	trap+0(FP), AX  // syscall entry
+	MOVL	a1+4(FP), BX
+	MOVL	a2+8(FP), CX
+	MOVL	a3+12(FP), DX
+	MOVL	$0, SI
+	MOVL	$0, DI
+	INVOKE_SYSCALL
+	MOVL	AX, r1+16(FP)
+	MOVL	DX, r2+20(FP)
+	CALL	runtime·exitsyscall(SB)
+	RET
+
+TEXT ·RawSyscall(SB),NOSPLIT,$0-28
+	JMP	syscall·RawSyscall(SB)
+
+TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
+	JMP	syscall·RawSyscall6(SB)
+
+TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-24
+	MOVL	trap+0(FP), AX  // syscall entry
+	MOVL	a1+4(FP), BX
+	MOVL	a2+8(FP), CX
+	MOVL	a3+12(FP), DX
+	MOVL	$0, SI
+	MOVL	$0, DI
+	INVOKE_SYSCALL
+	MOVL	AX, r1+16(FP)
+	MOVL	DX, r2+20(FP)
+	RET
+
+TEXT ·socketcall(SB),NOSPLIT,$0-36
+	JMP	syscall·socketcall(SB)
+
+TEXT ·rawsocketcall(SB),NOSPLIT,$0-36
+	JMP	syscall·rawsocketcall(SB)
+
+TEXT ·seek(SB),NOSPLIT,$0-28
+	JMP	syscall·seek(SB)

vendor/golang.org/x/sys/unix/asm_linux_amd64.s

@@ -0,0 +1,57 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System calls for AMD64, Linux
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT ·Syscall(SB),NOSPLIT,$0-56
+	JMP	syscall·Syscall(SB)
+
+TEXT ·Syscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·Syscall6(SB)
+
+TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
+	CALL	runtime·entersyscall(SB)
+	MOVQ	a1+8(FP), DI
+	MOVQ	a2+16(FP), SI
+	MOVQ	a3+24(FP), DX
+	MOVQ	$0, R10
+	MOVQ	$0, R8
+	MOVQ	$0, R9
+	MOVQ	trap+0(FP), AX	// syscall entry
+	SYSCALL
+	MOVQ	AX, r1+32(FP)
+	MOVQ	DX, r2+40(FP)
+	CALL	runtime·exitsyscall(SB)
+	RET
+
+TEXT ·RawSyscall(SB),NOSPLIT,$0-56
+	JMP	syscall·RawSyscall(SB)
+
+TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·RawSyscall6(SB)
+
+TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
+	MOVQ	a1+8(FP), DI
+	MOVQ	a2+16(FP), SI
+	MOVQ	a3+24(FP), DX
+	MOVQ	$0, R10
+	MOVQ	$0, R8
+	MOVQ	$0, R9
+	MOVQ	trap+0(FP), AX	// syscall entry
+	SYSCALL
+	MOVQ	AX, r1+32(FP)
+	MOVQ	DX, r2+40(FP)
+	RET
+
+TEXT ·gettimeofday(SB),NOSPLIT,$0-16
+	JMP	syscall·gettimeofday(SB)

vendor/golang.org/x/sys/unix/asm_linux_arm.s

@@ -0,0 +1,56 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System calls for arm, Linux
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT ·Syscall(SB),NOSPLIT,$0-28
+	B	syscall·Syscall(SB)
+
+TEXT ·Syscall6(SB),NOSPLIT,$0-40
+	B	syscall·Syscall6(SB)
+
+TEXT ·SyscallNoError(SB),NOSPLIT,$0-24
+	BL	runtime·entersyscall(SB)
+	MOVW	trap+0(FP), R7
+	MOVW	a1+4(FP), R0
+	MOVW	a2+8(FP), R1
+	MOVW	a3+12(FP), R2
+	MOVW	$0, R3
+	MOVW	$0, R4
+	MOVW	$0, R5
+	SWI	$0
+	MOVW	R0, r1+16(FP)
+	MOVW	$0, R0
+	MOVW	R0, r2+20(FP)
+	BL	runtime·exitsyscall(SB)
+	RET
+
+TEXT ·RawSyscall(SB),NOSPLIT,$0-28
+	B	syscall·RawSyscall(SB)
+
+TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
+	B	syscall·RawSyscall6(SB)
+
+TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-24
+	MOVW	trap+0(FP), R7	// syscall entry
+	MOVW	a1+4(FP), R0
+	MOVW	a2+8(FP), R1
+	MOVW	a3+12(FP), R2
+	SWI	$0
+	MOVW	R0, r1+16(FP)
+	MOVW	$0, R0
+	MOVW	R0, r2+20(FP)
+	RET
+
+TEXT ·seek(SB),NOSPLIT,$0-28
+	B	syscall·seek(SB)

vendor/golang.org/x/sys/unix/asm_linux_arm64.s

@@ -0,0 +1,52 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build linux
+// +build arm64
+// +build !gccgo
+
+#include "textflag.h"
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT ·Syscall(SB),NOSPLIT,$0-56
+	B	syscall·Syscall(SB)
+
+TEXT ·Syscall6(SB),NOSPLIT,$0-80
+	B	syscall·Syscall6(SB)
+
+TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
+	BL	runtime·entersyscall(SB)
+	MOVD	a1+8(FP), R0
+	MOVD	a2+16(FP), R1
+	MOVD	a3+24(FP), R2
+	MOVD	$0, R3
+	MOVD	$0, R4
+	MOVD	$0, R5
+	MOVD	trap+0(FP), R8	// syscall entry
+	SVC
+	MOVD	R0, r1+32(FP)	// r1
+	MOVD	R1, r2+40(FP)	// r2
+	BL	runtime·exitsyscall(SB)
+	RET
+
+TEXT ·RawSyscall(SB),NOSPLIT,$0-56
+	B	syscall·RawSyscall(SB)
+
+TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
+	B	syscall·RawSyscall6(SB)
+
+TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
+	MOVD	a1+8(FP), R0
+	MOVD	a2+16(FP), R1
+	MOVD	a3+24(FP), R2
+	MOVD	$0, R3
+	MOVD	$0, R4
+	MOVD	$0, R5
+	MOVD	trap+0(FP), R8	// syscall entry
+	SVC
+	MOVD	R0, r1+32(FP)
+	MOVD	R1, r2+40(FP)
+	RET

vendor/golang.org/x/sys/unix/asm_linux_mips64x.s

@@ -0,0 +1,56 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build linux
+// +build mips64 mips64le
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System calls for mips64, Linux
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT ·Syscall(SB),NOSPLIT,$0-56
+	JMP	syscall·Syscall(SB)
+
+TEXT ·Syscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·Syscall6(SB)
+
+TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
+	JAL	runtime·entersyscall(SB)
+	MOVV	a1+8(FP), R4
+	MOVV	a2+16(FP), R5
+	MOVV	a3+24(FP), R6
+	MOVV	R0, R7
+	MOVV	R0, R8
+	MOVV	R0, R9
+	MOVV	trap+0(FP), R2	// syscall entry
+	SYSCALL
+	MOVV	R2, r1+32(FP)
+	MOVV	R3, r2+40(FP)
+	JAL	runtime·exitsyscall(SB)
+	RET
+
+TEXT ·RawSyscall(SB),NOSPLIT,$0-56
+	JMP	syscall·RawSyscall(SB)
+
+TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·RawSyscall6(SB)
+
+TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
+	MOVV	a1+8(FP), R4
+	MOVV	a2+16(FP), R5
+	MOVV	a3+24(FP), R6
+	MOVV	R0, R7
+	MOVV	R0, R8
+	MOVV	R0, R9
+	MOVV	trap+0(FP), R2	// syscall entry
+	SYSCALL
+	MOVV	R2, r1+32(FP)
+	MOVV	R3, r2+40(FP)
+	RET

vendor/golang.org/x/sys/unix/asm_linux_mipsx.s

@@ -0,0 +1,54 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build linux
+// +build mips mipsle
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System calls for mips, Linux
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT ·Syscall(SB),NOSPLIT,$0-28
+	JMP syscall·Syscall(SB)
+
+TEXT ·Syscall6(SB),NOSPLIT,$0-40
+	JMP syscall·Syscall6(SB)
+
+TEXT ·Syscall9(SB),NOSPLIT,$0-52
+	JMP syscall·Syscall9(SB)
+
+TEXT ·SyscallNoError(SB),NOSPLIT,$0-24
+	JAL	runtime·entersyscall(SB)
+	MOVW	a1+4(FP), R4
+	MOVW	a2+8(FP), R5
+	MOVW	a3+12(FP), R6
+	MOVW	R0, R7
+	MOVW	trap+0(FP), R2	// syscall entry
+	SYSCALL
+	MOVW	R2, r1+16(FP)	// r1
+	MOVW	R3, r2+20(FP)	// r2
+	JAL	runtime·exitsyscall(SB)
+	RET
+
+TEXT ·RawSyscall(SB),NOSPLIT,$0-28
+	JMP syscall·RawSyscall(SB)
+
+TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
+	JMP syscall·RawSyscall6(SB)
+
+TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-24
+	MOVW	a1+4(FP), R4
+	MOVW	a2+8(FP), R5
+	MOVW	a3+12(FP), R6
+	MOVW	trap+0(FP), R2	// syscall entry
+	SYSCALL
+	MOVW	R2, r1+16(FP)
+	MOVW	R3, r2+20(FP)
+	RET

vendor/golang.org/x/sys/unix/asm_linux_ppc64x.s

@@ -0,0 +1,56 @@
+// Copyright 2014 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build linux
+// +build ppc64 ppc64le
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System calls for ppc64, Linux
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT ·Syscall(SB),NOSPLIT,$0-56
+	BR	syscall·Syscall(SB)
+
+TEXT ·Syscall6(SB),NOSPLIT,$0-80
+	BR	syscall·Syscall6(SB)
+
+TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
+	BL	runtime·entersyscall(SB)
+	MOVD	a1+8(FP), R3
+	MOVD	a2+16(FP), R4
+	MOVD	a3+24(FP), R5
+	MOVD	R0, R6
+	MOVD	R0, R7
+	MOVD	R0, R8
+	MOVD	trap+0(FP), R9	// syscall entry
+	SYSCALL R9
+	MOVD	R3, r1+32(FP)
+	MOVD	R4, r2+40(FP)
+	BL	runtime·exitsyscall(SB)
+	RET
+
+TEXT ·RawSyscall(SB),NOSPLIT,$0-56
+	BR	syscall·RawSyscall(SB)
+
+TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
+	BR	syscall·RawSyscall6(SB)
+
+TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
+	MOVD	a1+8(FP), R3
+	MOVD	a2+16(FP), R4
+	MOVD	a3+24(FP), R5
+	MOVD	R0, R6
+	MOVD	R0, R7
+	MOVD	R0, R8
+	MOVD	trap+0(FP), R9	// syscall entry
+	SYSCALL R9
+	MOVD	R3, r1+32(FP)
+	MOVD	R4, r2+40(FP)
+	RET

vendor/golang.org/x/sys/unix/asm_linux_s390x.s

@@ -0,0 +1,56 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build s390x
+// +build linux
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System calls for s390x, Linux
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT ·Syscall(SB),NOSPLIT,$0-56
+	BR	syscall·Syscall(SB)
+
+TEXT ·Syscall6(SB),NOSPLIT,$0-80
+	BR	syscall·Syscall6(SB)
+
+TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
+	BL	runtime·entersyscall(SB)
+	MOVD	a1+8(FP), R2
+	MOVD	a2+16(FP), R3
+	MOVD	a3+24(FP), R4
+	MOVD	$0, R5
+	MOVD	$0, R6
+	MOVD	$0, R7
+	MOVD	trap+0(FP), R1	// syscall entry
+	SYSCALL
+	MOVD	R2, r1+32(FP)
+	MOVD	R3, r2+40(FP)
+	BL	runtime·exitsyscall(SB)
+	RET
+
+TEXT ·RawSyscall(SB),NOSPLIT,$0-56
+	BR	syscall·RawSyscall(SB)
+
+TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
+	BR	syscall·RawSyscall6(SB)
+
+TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
+	MOVD	a1+8(FP), R2
+	MOVD	a2+16(FP), R3
+	MOVD	a3+24(FP), R4
+	MOVD	$0, R5
+	MOVD	$0, R6
+	MOVD	$0, R7
+	MOVD	trap+0(FP), R1	// syscall entry
+	SYSCALL
+	MOVD	R2, r1+32(FP)
+	MOVD	R3, r2+40(FP)
+	RET

vendor/golang.org/x/sys/unix/asm_netbsd_386.s

@@ -0,0 +1,29 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System call support for 386, NetBSD
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT	·Syscall(SB),NOSPLIT,$0-28
+	JMP	syscall·Syscall(SB)
+
+TEXT	·Syscall6(SB),NOSPLIT,$0-40
+	JMP	syscall·Syscall6(SB)
+
+TEXT	·Syscall9(SB),NOSPLIT,$0-52
+	JMP	syscall·Syscall9(SB)
+
+TEXT ·RawSyscall(SB),NOSPLIT,$0-28
+	JMP	syscall·RawSyscall(SB)
+
+TEXT	·RawSyscall6(SB),NOSPLIT,$0-40
+	JMP	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_netbsd_amd64.s

@@ -0,0 +1,29 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System call support for AMD64, NetBSD
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT	·Syscall(SB),NOSPLIT,$0-56
+	JMP	syscall·Syscall(SB)
+
+TEXT	·Syscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·Syscall6(SB)
+
+TEXT	·Syscall9(SB),NOSPLIT,$0-104
+	JMP	syscall·Syscall9(SB)
+
+TEXT	·RawSyscall(SB),NOSPLIT,$0-56
+	JMP	syscall·RawSyscall(SB)
+
+TEXT	·RawSyscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_netbsd_arm.s

@@ -0,0 +1,29 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System call support for ARM, NetBSD
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT	·Syscall(SB),NOSPLIT,$0-28
+	B	syscall·Syscall(SB)
+
+TEXT	·Syscall6(SB),NOSPLIT,$0-40
+	B	syscall·Syscall6(SB)
+
+TEXT	·Syscall9(SB),NOSPLIT,$0-52
+	B	syscall·Syscall9(SB)
+
+TEXT	·RawSyscall(SB),NOSPLIT,$0-28
+	B	syscall·RawSyscall(SB)
+
+TEXT	·RawSyscall6(SB),NOSPLIT,$0-40
+	B	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_openbsd_386.s

@@ -0,0 +1,29 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System call support for 386, OpenBSD
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT	·Syscall(SB),NOSPLIT,$0-28
+	JMP	syscall·Syscall(SB)
+
+TEXT	·Syscall6(SB),NOSPLIT,$0-40
+	JMP	syscall·Syscall6(SB)
+
+TEXT	·Syscall9(SB),NOSPLIT,$0-52
+	JMP	syscall·Syscall9(SB)
+
+TEXT ·RawSyscall(SB),NOSPLIT,$0-28
+	JMP	syscall·RawSyscall(SB)
+
+TEXT	·RawSyscall6(SB),NOSPLIT,$0-40
+	JMP	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_openbsd_amd64.s

@@ -0,0 +1,29 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System call support for AMD64, OpenBSD
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT	·Syscall(SB),NOSPLIT,$0-56
+	JMP	syscall·Syscall(SB)
+
+TEXT	·Syscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·Syscall6(SB)
+
+TEXT	·Syscall9(SB),NOSPLIT,$0-104
+	JMP	syscall·Syscall9(SB)
+
+TEXT	·RawSyscall(SB),NOSPLIT,$0-56
+	JMP	syscall·RawSyscall(SB)
+
+TEXT	·RawSyscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_openbsd_arm.s

@@ -0,0 +1,29 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System call support for ARM, OpenBSD
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT	·Syscall(SB),NOSPLIT,$0-28
+	B	syscall·Syscall(SB)
+
+TEXT	·Syscall6(SB),NOSPLIT,$0-40
+	B	syscall·Syscall6(SB)
+
+TEXT	·Syscall9(SB),NOSPLIT,$0-52
+	B	syscall·Syscall9(SB)
+
+TEXT	·RawSyscall(SB),NOSPLIT,$0-28
+	B	syscall·RawSyscall(SB)
+
+TEXT	·RawSyscall6(SB),NOSPLIT,$0-40
+	B	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_solaris_amd64.s

@@ -0,0 +1,17 @@
+// Copyright 2014 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System calls for amd64, Solaris are implemented in runtime/syscall_solaris.go
+//
+
+TEXT ·sysvicall6(SB),NOSPLIT,$0-88
+	JMP	syscall·sysvicall6(SB)
+
+TEXT ·rawSysvicall6(SB),NOSPLIT,$0-88
+	JMP	syscall·rawSysvicall6(SB)

vendor/golang.org/x/sys/unix/bluetooth_linux.go

@@ -0,0 +1,35 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Bluetooth sockets and messages
+
+package unix
+
+// Bluetooth Protocols
+const (
+	BTPROTO_L2CAP  = 0
+	BTPROTO_HCI    = 1
+	BTPROTO_SCO    = 2
+	BTPROTO_RFCOMM = 3
+	BTPROTO_BNEP   = 4
+	BTPROTO_CMTP   = 5
+	BTPROTO_HIDP   = 6
+	BTPROTO_AVDTP  = 7
+)
+
+const (
+	HCI_CHANNEL_RAW     = 0
+	HCI_CHANNEL_USER    = 1
+	HCI_CHANNEL_MONITOR = 2
+	HCI_CHANNEL_CONTROL = 3
+)
+
+// Socketoption Level
+const (
+	SOL_BLUETOOTH = 0x112
+	SOL_HCI       = 0x0
+	SOL_L2CAP     = 0x6
+	SOL_RFCOMM    = 0x12
+	SOL_SCO       = 0x11
+)

vendor/golang.org/x/sys/unix/cap_freebsd.go

@@ -0,0 +1,195 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build freebsd
+
+package unix
+
+import (
+	"errors"
+	"fmt"
+)
+
+// Go implementation of C mostly found in /usr/src/sys/kern/subr_capability.c
+
+const (
+	// This is the version of CapRights this package understands. See C implementation for parallels.
+	capRightsGoVersion = CAP_RIGHTS_VERSION_00
+	capArSizeMin       = CAP_RIGHTS_VERSION_00 + 2
+	capArSizeMax       = capRightsGoVersion + 2
+)
+
+var (
+	bit2idx = []int{
+		-1, 0, 1, -1, 2, -1, -1, -1, 3, -1, -1, -1, -1, -1, -1, -1,
+		4, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+	}
+)
+
+func capidxbit(right uint64) int {
+	return int((right >> 57) & 0x1f)
+}
+
+func rightToIndex(right uint64) (int, error) {
+	idx := capidxbit(right)
+	if idx < 0 || idx >= len(bit2idx) {
+		return -2, fmt.Errorf("index for right 0x%x out of range", right)
+	}
+	return bit2idx[idx], nil
+}
+
+func caprver(right uint64) int {
+	return int(right >> 62)
+}
+
+func capver(rights *CapRights) int {
+	return caprver(rights.Rights[0])
+}
+
+func caparsize(rights *CapRights) int {
+	return capver(rights) + 2
+}
+
+// CapRightsSet sets the permissions in setrights in rights.
+func CapRightsSet(rights *CapRights, setrights []uint64) error {
+	// This is essentially a copy of cap_rights_vset()
+	if capver(rights) != CAP_RIGHTS_VERSION_00 {
+		return fmt.Errorf("bad rights version %d", capver(rights))
+	}
+
+	n := caparsize(rights)
+	if n < capArSizeMin || n > capArSizeMax {
+		return errors.New("bad rights size")
+	}
+
+	for _, right := range setrights {
+		if caprver(right) != CAP_RIGHTS_VERSION_00 {
+			return errors.New("bad right version")
+		}
+		i, err := rightToIndex(right)
+		if err != nil {
+			return err
+		}
+		if i >= n {
+			return errors.New("index overflow")
+		}
+		if capidxbit(rights.Rights[i]) != capidxbit(right) {
+			return errors.New("index mismatch")
+		}
+		rights.Rights[i] |= right
+		if capidxbit(rights.Rights[i]) != capidxbit(right) {
+			return errors.New("index mismatch (after assign)")
+		}
+	}
+
+	return nil
+}
+
+// CapRightsClear clears the permissions in clearrights from rights.
+func CapRightsClear(rights *CapRights, clearrights []uint64) error {
+	// This is essentially a copy of cap_rights_vclear()
+	if capver(rights) != CAP_RIGHTS_VERSION_00 {
+		return fmt.Errorf("bad rights version %d", capver(rights))
+	}
+
+	n := caparsize(rights)
+	if n < capArSizeMin || n > capArSizeMax {
+		return errors.New("bad rights size")
+	}
+
+	for _, right := range clearrights {
+		if caprver(right) != CAP_RIGHTS_VERSION_00 {
+			return errors.New("bad right version")
+		}
+		i, err := rightToIndex(right)
+		if err != nil {
+			return err
+		}
+		if i >= n {
+			return errors.New("index overflow")
+		}
+		if capidxbit(rights.Rights[i]) != capidxbit(right) {
+			return errors.New("index mismatch")
+		}
+		rights.Rights[i] &= ^(right & 0x01FFFFFFFFFFFFFF)
+		if capidxbit(rights.Rights[i]) != capidxbit(right) {
+			return errors.New("index mismatch (after assign)")
+		}
+	}
+
+	return nil
+}
+
+// CapRightsIsSet checks whether all the permissions in setrights are present in rights.
+func CapRightsIsSet(rights *CapRights, setrights []uint64) (bool, error) {
+	// This is essentially a copy of cap_rights_is_vset()
+	if capver(rights) != CAP_RIGHTS_VERSION_00 {
+		return false, fmt.Errorf("bad rights version %d", capver(rights))
+	}
+
+	n := caparsize(rights)
+	if n < capArSizeMin || n > capArSizeMax {
+		return false, errors.New("bad rights size")
+	}
+
+	for _, right := range setrights {
+		if caprver(right) != CAP_RIGHTS_VERSION_00 {
+			return false, errors.New("bad right version")
+		}
+		i, err := rightToIndex(right)
+		if err != nil {
+			return false, err
+		}
+		if i >= n {
+			return false, errors.New("index overflow")
+		}
+		if capidxbit(rights.Rights[i]) != capidxbit(right) {
+			return false, errors.New("index mismatch")
+		}
+		if (rights.Rights[i] & right) != right {
+			return false, nil
+		}
+	}
+
+	return true, nil
+}
+
+func capright(idx uint64, bit uint64) uint64 {
+	return ((1 << (57 + idx)) | bit)
+}
+
+// CapRightsInit returns a pointer to an initialised CapRights structure filled with rights.
+// See man cap_rights_init(3) and rights(4).
+func CapRightsInit(rights []uint64) (*CapRights, error) {
+	var r CapRights
+	r.Rights[0] = (capRightsGoVersion << 62) | capright(0, 0)
+	r.Rights[1] = capright(1, 0)
+
+	err := CapRightsSet(&r, rights)
+	if err != nil {
+		return nil, err
+	}
+	return &r, nil
+}
+
+// CapRightsLimit reduces the operations permitted on fd to at most those contained in rights.
+// The capability rights on fd can never be increased by CapRightsLimit.
+// See man cap_rights_limit(2) and rights(4).
+func CapRightsLimit(fd uintptr, rights *CapRights) error {
+	return capRightsLimit(int(fd), rights)
+}
+
+// CapRightsGet returns a CapRights structure containing the operations permitted on fd.
+// See man cap_rights_get(3) and rights(4).
+func CapRightsGet(fd uintptr) (*CapRights, error) {
+	r, err := CapRightsInit(nil)
+	if err != nil {
+		return nil, err
+	}
+	err = capRightsGet(capRightsGoVersion, int(fd), r)
+	if err != nil {
+		return nil, err
+	}
+	return r, nil
+}

vendor/golang.org/x/sys/unix/constants.go

@@ -0,0 +1,13 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
+
+package unix
+
+const (
+	R_OK = 0x4
+	W_OK = 0x2
+	X_OK = 0x1
+)

vendor/golang.org/x/sys/unix/dev_aix_ppc.go

@@ -0,0 +1,27 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix
+// +build ppc
+
+// Functions to access/create device major and minor numbers matching the
+// encoding used by AIX.
+
+package unix
+
+// Major returns the major component of a Linux device number.
+func Major(dev uint64) uint32 {
+	return uint32((dev >> 16) & 0xffff)
+}
+
+// Minor returns the minor component of a Linux device number.
+func Minor(dev uint64) uint32 {
+	return uint32(dev & 0xffff)
+}
+
+// Mkdev returns a Linux device number generated from the given major and minor
+// components.
+func Mkdev(major, minor uint32) uint64 {
+	return uint64(((major) << 16) | (minor))
+}

vendor/golang.org/x/sys/unix/dev_aix_ppc64.go

@@ -0,0 +1,29 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix
+// +build ppc64
+
+// Functions to access/create device major and minor numbers matching the
+// encoding used AIX.
+
+package unix
+
+// Major returns the major component of a Linux device number.
+func Major(dev uint64) uint32 {
+	return uint32((dev & 0x3fffffff00000000) >> 32)
+}
+
+// Minor returns the minor component of a Linux device number.
+func Minor(dev uint64) uint32 {
+	return uint32((dev & 0x00000000ffffffff) >> 0)
+}
+
+// Mkdev returns a Linux device number generated from the given major and minor
+// components.
+func Mkdev(major, minor uint32) uint64 {
+	var DEVNO64 uint64
+	DEVNO64 = 0x8000000000000000
+	return ((uint64(major) << 32) | (uint64(minor) & 0x00000000FFFFFFFF) | DEVNO64)
+}

vendor/golang.org/x/sys/unix/dev_darwin.go

@@ -0,0 +1,24 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Functions to access/create device major and minor numbers matching the
+// encoding used in Darwin's sys/types.h header.
+
+package unix
+
+// Major returns the major component of a Darwin device number.
+func Major(dev uint64) uint32 {
+	return uint32((dev >> 24) & 0xff)
+}
+
+// Minor returns the minor component of a Darwin device number.
+func Minor(dev uint64) uint32 {
+	return uint32(dev & 0xffffff)
+}
+
+// Mkdev returns a Darwin device number generated from the given major and minor
+// components.
+func Mkdev(major, minor uint32) uint64 {
+	return (uint64(major) << 24) | uint64(minor)
+}

vendor/golang.org/x/sys/unix/dev_dragonfly.go

@@ -0,0 +1,30 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Functions to access/create device major and minor numbers matching the
+// encoding used in Dragonfly's sys/types.h header.
+//
+// The information below is extracted and adapted from sys/types.h:
+//
+// Minor gives a cookie instead of an index since in order to avoid changing the
+// meanings of bits 0-15 or wasting time and space shifting bits 16-31 for
+// devices that don't use them.
+
+package unix
+
+// Major returns the major component of a DragonFlyBSD device number.
+func Major(dev uint64) uint32 {
+	return uint32((dev >> 8) & 0xff)
+}
+
+// Minor returns the minor component of a DragonFlyBSD device number.
+func Minor(dev uint64) uint32 {
+	return uint32(dev & 0xffff00ff)
+}
+
+// Mkdev returns a DragonFlyBSD device number generated from the given major and
+// minor components.
+func Mkdev(major, minor uint32) uint64 {
+	return (uint64(major) << 8) | uint64(minor)
+}

vendor/golang.org/x/sys/unix/dev_freebsd.go

@@ -0,0 +1,30 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Functions to access/create device major and minor numbers matching the
+// encoding used in FreeBSD's sys/types.h header.
+//
+// The information below is extracted and adapted from sys/types.h:
+//
+// Minor gives a cookie instead of an index since in order to avoid changing the
+// meanings of bits 0-15 or wasting time and space shifting bits 16-31 for
+// devices that don't use them.
+
+package unix
+
+// Major returns the major component of a FreeBSD device number.
+func Major(dev uint64) uint32 {
+	return uint32((dev >> 8) & 0xff)
+}
+
+// Minor returns the minor component of a FreeBSD device number.
+func Minor(dev uint64) uint32 {
+	return uint32(dev & 0xffff00ff)
+}
+
+// Mkdev returns a FreeBSD device number generated from the given major and
+// minor components.
+func Mkdev(major, minor uint32) uint64 {
+	return (uint64(major) << 8) | uint64(minor)
+}

vendor/golang.org/x/sys/unix/dev_linux.go

@@ -0,0 +1,42 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Functions to access/create device major and minor numbers matching the
+// encoding used by the Linux kernel and glibc.
+//
+// The information below is extracted and adapted from bits/sysmacros.h in the
+// glibc sources:
+//
+// dev_t in glibc is 64-bit, with 32-bit major and minor numbers. glibc's
+// default encoding is MMMM Mmmm mmmM MMmm, where M is a hex digit of the major
+// number and m is a hex digit of the minor number. This is backward compatible
+// with legacy systems where dev_t is 16 bits wide, encoded as MMmm. It is also
+// backward compatible with the Linux kernel, which for some architectures uses
+// 32-bit dev_t, encoded as mmmM MMmm.
+
+package unix
+
+// Major returns the major component of a Linux device number.
+func Major(dev uint64) uint32 {
+	major := uint32((dev & 0x00000000000fff00) >> 8)
+	major |= uint32((dev & 0xfffff00000000000) >> 32)
+	return major
+}
+
+// Minor returns the minor component of a Linux device number.
+func Minor(dev uint64) uint32 {
+	minor := uint32((dev & 0x00000000000000ff) >> 0)
+	minor |= uint32((dev & 0x00000ffffff00000) >> 12)
+	return minor
+}
+
+// Mkdev returns a Linux device number generated from the given major and minor
+// components.
+func Mkdev(major, minor uint32) uint64 {
+	dev := (uint64(major) & 0x00000fff) << 8
+	dev |= (uint64(major) & 0xfffff000) << 32
+	dev |= (uint64(minor) & 0x000000ff) << 0
+	dev |= (uint64(minor) & 0xffffff00) << 12
+	return dev
+}

vendor/golang.org/x/sys/unix/dev_netbsd.go

@@ -0,0 +1,29 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Functions to access/create device major and minor numbers matching the
+// encoding used in NetBSD's sys/types.h header.
+
+package unix
+
+// Major returns the major component of a NetBSD device number.
+func Major(dev uint64) uint32 {
+	return uint32((dev & 0x000fff00) >> 8)
+}
+
+// Minor returns the minor component of a NetBSD device number.
+func Minor(dev uint64) uint32 {
+	minor := uint32((dev & 0x000000ff) >> 0)
+	minor |= uint32((dev & 0xfff00000) >> 12)
+	return minor
+}
+
+// Mkdev returns a NetBSD device number generated from the given major and minor
+// components.
+func Mkdev(major, minor uint32) uint64 {
+	dev := (uint64(major) << 8) & 0x000fff00
+	dev |= (uint64(minor) << 12) & 0xfff00000
+	dev |= (uint64(minor) << 0) & 0x000000ff
+	return dev
+}

vendor/golang.org/x/sys/unix/dev_openbsd.go

@@ -0,0 +1,29 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Functions to access/create device major and minor numbers matching the
+// encoding used in OpenBSD's sys/types.h header.
+
+package unix
+
+// Major returns the major component of an OpenBSD device number.
+func Major(dev uint64) uint32 {
+	return uint32((dev & 0x0000ff00) >> 8)
+}
+
+// Minor returns the minor component of an OpenBSD device number.
+func Minor(dev uint64) uint32 {
+	minor := uint32((dev & 0x000000ff) >> 0)
+	minor |= uint32((dev & 0xffff0000) >> 8)
+	return minor
+}
+
+// Mkdev returns an OpenBSD device number generated from the given major and minor
+// components.
+func Mkdev(major, minor uint32) uint64 {
+	dev := (uint64(major) << 8) & 0x0000ff00
+	dev |= (uint64(minor) << 8) & 0xffff0000
+	dev |= (uint64(minor) << 0) & 0x000000ff
+	return dev
+}

vendor/golang.org/x/sys/unix/dirent.go

@@ -0,0 +1,17 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix darwin dragonfly freebsd linux nacl netbsd openbsd solaris
+
+package unix
+
+import "syscall"
+
+// ParseDirent parses up to max directory entries in buf,
+// appending the names to names. It returns the number of
+// bytes consumed from buf, the number of entries added
+// to names, and the new names slice.
+func ParseDirent(buf []byte, max int, names []string) (consumed int, count int, newnames []string) {
+	return syscall.ParseDirent(buf, max, names)
+}

vendor/golang.org/x/sys/unix/endian_big.go

@@ -0,0 +1,9 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+//
+// +build ppc64 s390x mips mips64
+
+package unix
+
+const isBigEndian = true

vendor/golang.org/x/sys/unix/endian_little.go

@@ -0,0 +1,9 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+//
+// +build 386 amd64 amd64p32 arm arm64 ppc64le mipsle mips64le
+
+package unix
+
+const isBigEndian = false

vendor/golang.org/x/sys/unix/env_unix.go

@@ -0,0 +1,31 @@
+// Copyright 2010 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
+
+// Unix environment variables.
+
+package unix
+
+import "syscall"
+
+func Getenv(key string) (value string, found bool) {
+	return syscall.Getenv(key)
+}
+
+func Setenv(key, value string) error {
+	return syscall.Setenv(key, value)
+}
+
+func Clearenv() {
+	syscall.Clearenv()
+}
+
+func Environ() []string {
+	return syscall.Environ()
+}
+
+func Unsetenv(key string) error {
+	return syscall.Unsetenv(key)
+}

vendor/golang.org/x/sys/unix/errors_freebsd_386.go

@@ -0,0 +1,227 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Constants that were deprecated or moved to enums in the FreeBSD headers. Keep
+// them here for backwards compatibility.
+
+package unix
+
+const (
+	IFF_SMART                         = 0x20
+	IFT_1822                          = 0x2
+	IFT_A12MPPSWITCH                  = 0x82
+	IFT_AAL2                          = 0xbb
+	IFT_AAL5                          = 0x31
+	IFT_ADSL                          = 0x5e
+	IFT_AFLANE8023                    = 0x3b
+	IFT_AFLANE8025                    = 0x3c
+	IFT_ARAP                          = 0x58
+	IFT_ARCNET                        = 0x23
+	IFT_ARCNETPLUS                    = 0x24
+	IFT_ASYNC                         = 0x54
+	IFT_ATM                           = 0x25
+	IFT_ATMDXI                        = 0x69
+	IFT_ATMFUNI                       = 0x6a
+	IFT_ATMIMA                        = 0x6b
+	IFT_ATMLOGICAL                    = 0x50
+	IFT_ATMRADIO                      = 0xbd
+	IFT_ATMSUBINTERFACE               = 0x86
+	IFT_ATMVCIENDPT                   = 0xc2
+	IFT_ATMVIRTUAL                    = 0x95
+	IFT_BGPPOLICYACCOUNTING           = 0xa2
+	IFT_BSC                           = 0x53
+	IFT_CCTEMUL                       = 0x3d
+	IFT_CEPT                          = 0x13
+	IFT_CES                           = 0x85
+	IFT_CHANNEL                       = 0x46
+	IFT_CNR                           = 0x55
+	IFT_COFFEE                        = 0x84
+	IFT_COMPOSITELINK                 = 0x9b
+	IFT_DCN                           = 0x8d
+	IFT_DIGITALPOWERLINE              = 0x8a
+	IFT_DIGITALWRAPPEROVERHEADCHANNEL = 0xba
+	IFT_DLSW                          = 0x4a
+	IFT_DOCSCABLEDOWNSTREAM           = 0x80
+	IFT_DOCSCABLEMACLAYER             = 0x7f
+	IFT_DOCSCABLEUPSTREAM             = 0x81
+	IFT_DS0                           = 0x51
+	IFT_DS0BUNDLE                     = 0x52
+	IFT_DS1FDL                        = 0xaa
+	IFT_DS3                           = 0x1e
+	IFT_DTM                           = 0x8c
+	IFT_DVBASILN                      = 0xac
+	IFT_DVBASIOUT                     = 0xad
+	IFT_DVBRCCDOWNSTREAM              = 0x93
+	IFT_DVBRCCMACLAYER                = 0x92
+	IFT_DVBRCCUPSTREAM                = 0x94
+	IFT_ENC                           = 0xf4
+	IFT_EON                           = 0x19
+	IFT_EPLRS                         = 0x57
+	IFT_ESCON                         = 0x49
+	IFT_ETHER                         = 0x6
+	IFT_FAITH                         = 0xf2
+	IFT_FAST                          = 0x7d
+	IFT_FASTETHER                     = 0x3e
+	IFT_FASTETHERFX                   = 0x45
+	IFT_FDDI                          = 0xf
+	IFT_FIBRECHANNEL                  = 0x38
+	IFT_FRAMERELAYINTERCONNECT        = 0x3a
+	IFT_FRAMERELAYMPI                 = 0x5c
+	IFT_FRDLCIENDPT                   = 0xc1
+	IFT_FRELAY                        = 0x20
+	IFT_FRELAYDCE                     = 0x2c
+	IFT_FRF16MFRBUNDLE                = 0xa3
+	IFT_FRFORWARD                     = 0x9e
+	IFT_G703AT2MB                     = 0x43
+	IFT_G703AT64K                     = 0x42
+	IFT_GIF                           = 0xf0
+	IFT_GIGABITETHERNET               = 0x75
+	IFT_GR303IDT                      = 0xb2
+	IFT_GR303RDT                      = 0xb1
+	IFT_H323GATEKEEPER                = 0xa4
+	IFT_H323PROXY                     = 0xa5
+	IFT_HDH1822                       = 0x3
+	IFT_HDLC                          = 0x76
+	IFT_HDSL2                         = 0xa8
+	IFT_HIPERLAN2                     = 0xb7
+	IFT_HIPPI                         = 0x2f
+	IFT_HIPPIINTERFACE                = 0x39
+	IFT_HOSTPAD                       = 0x5a
+	IFT_HSSI                          = 0x2e
+	IFT_HY                            = 0xe
+	IFT_IBM370PARCHAN                 = 0x48
+	IFT_IDSL                          = 0x9a
+	IFT_IEEE80211                     = 0x47
+	IFT_IEEE80212                     = 0x37
+	IFT_IEEE8023ADLAG                 = 0xa1
+	IFT_IFGSN                         = 0x91
+	IFT_IMT                           = 0xbe
+	IFT_INTERLEAVE                    = 0x7c
+	IFT_IP                            = 0x7e
+	IFT_IPFORWARD                     = 0x8e
+	IFT_IPOVERATM                     = 0x72
+	IFT_IPOVERCDLC                    = 0x6d
+	IFT_IPOVERCLAW                    = 0x6e
+	IFT_IPSWITCH                      = 0x4e
+	IFT_IPXIP                         = 0xf9
+	IFT_ISDN                          = 0x3f
+	IFT_ISDNBASIC                     = 0x14
+	IFT_ISDNPRIMARY                   = 0x15
+	IFT_ISDNS                         = 0x4b
+	IFT_ISDNU                         = 0x4c
+	IFT_ISO88022LLC                   = 0x29
+	IFT_ISO88023                      = 0x7
+	IFT_ISO88024                      = 0x8
+	IFT_ISO88025                      = 0x9
+	IFT_ISO88025CRFPINT               = 0x62
+	IFT_ISO88025DTR                   = 0x56
+	IFT_ISO88025FIBER                 = 0x73
+	IFT_ISO88026                      = 0xa
+	IFT_ISUP                          = 0xb3
+	IFT_L3IPXVLAN                     = 0x89
+	IFT_LAPB                          = 0x10
+	IFT_LAPD                          = 0x4d
+	IFT_LAPF                          = 0x77
+	IFT_LOCALTALK                     = 0x2a
+	IFT_LOOP                          = 0x18
+	IFT_MEDIAMAILOVERIP               = 0x8b
+	IFT_MFSIGLINK                     = 0xa7
+	IFT_MIOX25                        = 0x26
+	IFT_MODEM                         = 0x30
+	IFT_MPC                           = 0x71
+	IFT_MPLS                          = 0xa6
+	IFT_MPLSTUNNEL                    = 0x96
+	IFT_MSDSL                         = 0x8f
+	IFT_MVL                           = 0xbf
+	IFT_MYRINET                       = 0x63
+	IFT_NFAS                          = 0xaf
+	IFT_NSIP                          = 0x1b
+	IFT_OPTICALCHANNEL                = 0xc3
+	IFT_OPTICALTRANSPORT              = 0xc4
+	IFT_OTHER                         = 0x1
+	IFT_P10                           = 0xc
+	IFT_P80                           = 0xd
+	IFT_PARA                          = 0x22
+	IFT_PFLOG                         = 0xf6
+	IFT_PFSYNC                        = 0xf7
+	IFT_PLC                           = 0xae
+	IFT_POS                           = 0xab
+	IFT_PPPMULTILINKBUNDLE            = 0x6c
+	IFT_PROPBWAP2MP                   = 0xb8
+	IFT_PROPCNLS                      = 0x59
+	IFT_PROPDOCSWIRELESSDOWNSTREAM    = 0xb5
+	IFT_PROPDOCSWIRELESSMACLAYER      = 0xb4
+	IFT_PROPDOCSWIRELESSUPSTREAM      = 0xb6
+	IFT_PROPMUX                       = 0x36
+	IFT_PROPWIRELESSP2P               = 0x9d
+	IFT_PTPSERIAL                     = 0x16
+	IFT_PVC                           = 0xf1
+	IFT_QLLC                          = 0x44
+	IFT_RADIOMAC                      = 0xbc
+	IFT_RADSL                         = 0x5f
+	IFT_REACHDSL                      = 0xc0
+	IFT_RFC1483                       = 0x9f
+	IFT_RS232                         = 0x21
+	IFT_RSRB                          = 0x4f
+	IFT_SDLC                          = 0x11
+	IFT_SDSL                          = 0x60
+	IFT_SHDSL                         = 0xa9
+	IFT_SIP                           = 0x1f
+	IFT_SLIP                          = 0x1c
+	IFT_SMDSDXI                       = 0x2b
+	IFT_SMDSICIP                      = 0x34
+	IFT_SONET                         = 0x27
+	IFT_SONETOVERHEADCHANNEL          = 0xb9
+	IFT_SONETPATH                     = 0x32
+	IFT_SONETVT                       = 0x33
+	IFT_SRP                           = 0x97
+	IFT_SS7SIGLINK                    = 0x9c
+	IFT_STACKTOSTACK                  = 0x6f
+	IFT_STARLAN                       = 0xb
+	IFT_STF                           = 0xd7
+	IFT_T1                            = 0x12
+	IFT_TDLC                          = 0x74
+	IFT_TERMPAD                       = 0x5b
+	IFT_TR008                         = 0xb0
+	IFT_TRANSPHDLC                    = 0x7b
+	IFT_TUNNEL                        = 0x83
+	IFT_ULTRA                         = 0x1d
+	IFT_USB                           = 0xa0
+	IFT_V11                           = 0x40
+	IFT_V35                           = 0x2d
+	IFT_V36                           = 0x41
+	IFT_V37                           = 0x78
+	IFT_VDSL                          = 0x61
+	IFT_VIRTUALIPADDRESS              = 0x70
+	IFT_VOICEEM                       = 0x64
+	IFT_VOICEENCAP                    = 0x67
+	IFT_VOICEFXO                      = 0x65
+	IFT_VOICEFXS                      = 0x66
+	IFT_VOICEOVERATM                  = 0x98
+	IFT_VOICEOVERFRAMERELAY           = 0x99
+	IFT_VOICEOVERIP                   = 0x68
+	IFT_X213                          = 0x5d
+	IFT_X25                           = 0x5
+	IFT_X25DDN                        = 0x4
+	IFT_X25HUNTGROUP                  = 0x7a
+	IFT_X25MLP                        = 0x79
+	IFT_X25PLE                        = 0x28
+	IFT_XETHER                        = 0x1a
+	IPPROTO_MAXID                     = 0x34
+	IPV6_FAITH                        = 0x1d
+	IP_FAITH                          = 0x16
+	MAP_NORESERVE                     = 0x40
+	MAP_RENAME                        = 0x20
+	NET_RT_MAXID                      = 0x6
+	RTF_PRCLONING                     = 0x10000
+	RTM_OLDADD                        = 0x9
+	RTM_OLDDEL                        = 0xa
+	SIOCADDRT                         = 0x8030720a
+	SIOCALIFADDR                      = 0x8118691b
+	SIOCDELRT                         = 0x8030720b
+	SIOCDLIFADDR                      = 0x8118691d
+	SIOCGLIFADDR                      = 0xc118691c
+	SIOCGLIFPHYADDR                   = 0xc118694b
+	SIOCSLIFPHYADDR                   = 0x8118694a
+)

vendor/golang.org/x/sys/unix/errors_freebsd_amd64.go

@@ -0,0 +1,227 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Constants that were deprecated or moved to enums in the FreeBSD headers. Keep
+// them here for backwards compatibility.
+
+package unix
+
+const (
+	IFF_SMART                         = 0x20
+	IFT_1822                          = 0x2
+	IFT_A12MPPSWITCH                  = 0x82
+	IFT_AAL2                          = 0xbb
+	IFT_AAL5                          = 0x31
+	IFT_ADSL                          = 0x5e
+	IFT_AFLANE8023                    = 0x3b
+	IFT_AFLANE8025                    = 0x3c
+	IFT_ARAP                          = 0x58
+	IFT_ARCNET                        = 0x23
+	IFT_ARCNETPLUS                    = 0x24
+	IFT_ASYNC                         = 0x54
+	IFT_ATM                           = 0x25
+	IFT_ATMDXI                        = 0x69
+	IFT_ATMFUNI                       = 0x6a
+	IFT_ATMIMA                        = 0x6b
+	IFT_ATMLOGICAL                    = 0x50
+	IFT_ATMRADIO                      = 0xbd
+	IFT_ATMSUBINTERFACE               = 0x86
+	IFT_ATMVCIENDPT                   = 0xc2
+	IFT_ATMVIRTUAL                    = 0x95
+	IFT_BGPPOLICYACCOUNTING           = 0xa2
+	IFT_BSC                           = 0x53
+	IFT_CCTEMUL                       = 0x3d
+	IFT_CEPT                          = 0x13
+	IFT_CES                           = 0x85
+	IFT_CHANNEL                       = 0x46
+	IFT_CNR                           = 0x55
+	IFT_COFFEE                        = 0x84
+	IFT_COMPOSITELINK                 = 0x9b
+	IFT_DCN                           = 0x8d
+	IFT_DIGITALPOWERLINE              = 0x8a
+	IFT_DIGITALWRAPPEROVERHEADCHANNEL = 0xba
+	IFT_DLSW                          = 0x4a
+	IFT_DOCSCABLEDOWNSTREAM           = 0x80
+	IFT_DOCSCABLEMACLAYER             = 0x7f
+	IFT_DOCSCABLEUPSTREAM             = 0x81
+	IFT_DS0                           = 0x51
+	IFT_DS0BUNDLE                     = 0x52
+	IFT_DS1FDL                        = 0xaa
+	IFT_DS3                           = 0x1e
+	IFT_DTM                           = 0x8c
+	IFT_DVBASILN                      = 0xac
+	IFT_DVBASIOUT                     = 0xad
+	IFT_DVBRCCDOWNSTREAM              = 0x93
+	IFT_DVBRCCMACLAYER                = 0x92
+	IFT_DVBRCCUPSTREAM                = 0x94
+	IFT_ENC                           = 0xf4
+	IFT_EON                           = 0x19
+	IFT_EPLRS                         = 0x57
+	IFT_ESCON                         = 0x49
+	IFT_ETHER                         = 0x6
+	IFT_FAITH                         = 0xf2
+	IFT_FAST                          = 0x7d
+	IFT_FASTETHER                     = 0x3e
+	IFT_FASTETHERFX                   = 0x45
+	IFT_FDDI                          = 0xf
+	IFT_FIBRECHANNEL                  = 0x38
+	IFT_FRAMERELAYINTERCONNECT        = 0x3a
+	IFT_FRAMERELAYMPI                 = 0x5c
+	IFT_FRDLCIENDPT                   = 0xc1
+	IFT_FRELAY                        = 0x20
+	IFT_FRELAYDCE                     = 0x2c
+	IFT_FRF16MFRBUNDLE                = 0xa3
+	IFT_FRFORWARD                     = 0x9e
+	IFT_G703AT2MB                     = 0x43
+	IFT_G703AT64K                     = 0x42
+	IFT_GIF                           = 0xf0
+	IFT_GIGABITETHERNET               = 0x75
+	IFT_GR303IDT                      = 0xb2
+	IFT_GR303RDT                      = 0xb1
+	IFT_H323GATEKEEPER                = 0xa4
+	IFT_H323PROXY                     = 0xa5
+	IFT_HDH1822                       = 0x3
+	IFT_HDLC                          = 0x76
+	IFT_HDSL2                         = 0xa8
+	IFT_HIPERLAN2                     = 0xb7
+	IFT_HIPPI                         = 0x2f
+	IFT_HIPPIINTERFACE                = 0x39
+	IFT_HOSTPAD                       = 0x5a
+	IFT_HSSI                          = 0x2e
+	IFT_HY                            = 0xe
+	IFT_IBM370PARCHAN                 = 0x48
+	IFT_IDSL                          = 0x9a
+	IFT_IEEE80211                     = 0x47
+	IFT_IEEE80212                     = 0x37
+	IFT_IEEE8023ADLAG                 = 0xa1
+	IFT_IFGSN                         = 0x91
+	IFT_IMT                           = 0xbe
+	IFT_INTERLEAVE                    = 0x7c
+	IFT_IP                            = 0x7e
+	IFT_IPFORWARD                     = 0x8e
+	IFT_IPOVERATM                     = 0x72
+	IFT_IPOVERCDLC                    = 0x6d
+	IFT_IPOVERCLAW                    = 0x6e
+	IFT_IPSWITCH                      = 0x4e
+	IFT_IPXIP                         = 0xf9
+	IFT_ISDN                          = 0x3f
+	IFT_ISDNBASIC                     = 0x14
+	IFT_ISDNPRIMARY                   = 0x15
+	IFT_ISDNS                         = 0x4b
+	IFT_ISDNU                         = 0x4c
+	IFT_ISO88022LLC                   = 0x29
+	IFT_ISO88023                      = 0x7
+	IFT_ISO88024                      = 0x8
+	IFT_ISO88025                      = 0x9
+	IFT_ISO88025CRFPINT               = 0x62
+	IFT_ISO88025DTR                   = 0x56
+	IFT_ISO88025FIBER                 = 0x73
+	IFT_ISO88026                      = 0xa
+	IFT_ISUP                          = 0xb3
+	IFT_L3IPXVLAN                     = 0x89
+	IFT_LAPB                          = 0x10
+	IFT_LAPD                          = 0x4d
+	IFT_LAPF                          = 0x77
+	IFT_LOCALTALK                     = 0x2a
+	IFT_LOOP                          = 0x18
+	IFT_MEDIAMAILOVERIP               = 0x8b
+	IFT_MFSIGLINK                     = 0xa7
+	IFT_MIOX25                        = 0x26
+	IFT_MODEM                         = 0x30
+	IFT_MPC                           = 0x71
+	IFT_MPLS                          = 0xa6
+	IFT_MPLSTUNNEL                    = 0x96
+	IFT_MSDSL                         = 0x8f
+	IFT_MVL                           = 0xbf
+	IFT_MYRINET                       = 0x63
+	IFT_NFAS                          = 0xaf
+	IFT_NSIP                          = 0x1b
+	IFT_OPTICALCHANNEL                = 0xc3
+	IFT_OPTICALTRANSPORT              = 0xc4
+	IFT_OTHER                         = 0x1
+	IFT_P10                           = 0xc
+	IFT_P80                           = 0xd
+	IFT_PARA                          = 0x22
+	IFT_PFLOG                         = 0xf6
+	IFT_PFSYNC                        = 0xf7
+	IFT_PLC                           = 0xae
+	IFT_POS                           = 0xab
+	IFT_PPPMULTILINKBUNDLE            = 0x6c
+	IFT_PROPBWAP2MP                   = 0xb8
+	IFT_PROPCNLS                      = 0x59
+	IFT_PROPDOCSWIRELESSDOWNSTREAM    = 0xb5
+	IFT_PROPDOCSWIRELESSMACLAYER      = 0xb4
+	IFT_PROPDOCSWIRELESSUPSTREAM      = 0xb6
+	IFT_PROPMUX                       = 0x36
+	IFT_PROPWIRELESSP2P               = 0x9d
+	IFT_PTPSERIAL                     = 0x16
+	IFT_PVC                           = 0xf1
+	IFT_QLLC                          = 0x44
+	IFT_RADIOMAC                      = 0xbc
+	IFT_RADSL                         = 0x5f
+	IFT_REACHDSL                      = 0xc0
+	IFT_RFC1483                       = 0x9f
+	IFT_RS232                         = 0x21
+	IFT_RSRB                          = 0x4f
+	IFT_SDLC                          = 0x11
+	IFT_SDSL                          = 0x60
+	IFT_SHDSL                         = 0xa9
+	IFT_SIP                           = 0x1f
+	IFT_SLIP                          = 0x1c
+	IFT_SMDSDXI                       = 0x2b
+	IFT_SMDSICIP                      = 0x34
+	IFT_SONET                         = 0x27
+	IFT_SONETOVERHEADCHANNEL          = 0xb9
+	IFT_SONETPATH                     = 0x32
+	IFT_SONETVT                       = 0x33
+	IFT_SRP                           = 0x97
+	IFT_SS7SIGLINK                    = 0x9c
+	IFT_STACKTOSTACK                  = 0x6f
+	IFT_STARLAN                       = 0xb
+	IFT_STF                           = 0xd7
+	IFT_T1                            = 0x12
+	IFT_TDLC                          = 0x74
+	IFT_TERMPAD                       = 0x5b
+	IFT_TR008                         = 0xb0
+	IFT_TRANSPHDLC                    = 0x7b
+	IFT_TUNNEL                        = 0x83
+	IFT_ULTRA                         = 0x1d
+	IFT_USB                           = 0xa0
+	IFT_V11                           = 0x40
+	IFT_V35                           = 0x2d
+	IFT_V36                           = 0x41
+	IFT_V37                           = 0x78
+	IFT_VDSL                          = 0x61
+	IFT_VIRTUALIPADDRESS              = 0x70
+	IFT_VOICEEM                       = 0x64
+	IFT_VOICEENCAP                    = 0x67
+	IFT_VOICEFXO                      = 0x65
+	IFT_VOICEFXS                      = 0x66
+	IFT_VOICEOVERATM                  = 0x98
+	IFT_VOICEOVERFRAMERELAY           = 0x99
+	IFT_VOICEOVERIP                   = 0x68
+	IFT_X213                          = 0x5d
+	IFT_X25                           = 0x5
+	IFT_X25DDN                        = 0x4
+	IFT_X25HUNTGROUP                  = 0x7a
+	IFT_X25MLP                        = 0x79
+	IFT_X25PLE                        = 0x28
+	IFT_XETHER                        = 0x1a
+	IPPROTO_MAXID                     = 0x34
+	IPV6_FAITH                        = 0x1d
+	IP_FAITH                          = 0x16
+	MAP_NORESERVE                     = 0x40
+	MAP_RENAME                        = 0x20
+	NET_RT_MAXID                      = 0x6
+	RTF_PRCLONING                     = 0x10000
+	RTM_OLDADD                        = 0x9
+	RTM_OLDDEL                        = 0xa
+	SIOCADDRT                         = 0x8040720a
+	SIOCALIFADDR                      = 0x8118691b
+	SIOCDELRT                         = 0x8040720b
+	SIOCDLIFADDR                      = 0x8118691d
+	SIOCGLIFADDR                      = 0xc118691c
+	SIOCGLIFPHYADDR                   = 0xc118694b
+	SIOCSLIFPHYADDR                   = 0x8118694a
+)

vendor/golang.org/x/sys/unix/errors_freebsd_arm.go

@@ -0,0 +1,226 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package unix
+
+const (
+	IFT_1822                          = 0x2
+	IFT_A12MPPSWITCH                  = 0x82
+	IFT_AAL2                          = 0xbb
+	IFT_AAL5                          = 0x31
+	IFT_ADSL                          = 0x5e
+	IFT_AFLANE8023                    = 0x3b
+	IFT_AFLANE8025                    = 0x3c
+	IFT_ARAP                          = 0x58
+	IFT_ARCNET                        = 0x23
+	IFT_ARCNETPLUS                    = 0x24
+	IFT_ASYNC                         = 0x54
+	IFT_ATM                           = 0x25
+	IFT_ATMDXI                        = 0x69
+	IFT_ATMFUNI                       = 0x6a
+	IFT_ATMIMA                        = 0x6b
+	IFT_ATMLOGICAL                    = 0x50
+	IFT_ATMRADIO                      = 0xbd
+	IFT_ATMSUBINTERFACE               = 0x86
+	IFT_ATMVCIENDPT                   = 0xc2
+	IFT_ATMVIRTUAL                    = 0x95
+	IFT_BGPPOLICYACCOUNTING           = 0xa2
+	IFT_BSC                           = 0x53
+	IFT_CCTEMUL                       = 0x3d
+	IFT_CEPT                          = 0x13
+	IFT_CES                           = 0x85
+	IFT_CHANNEL                       = 0x46
+	IFT_CNR                           = 0x55
+	IFT_COFFEE                        = 0x84
+	IFT_COMPOSITELINK                 = 0x9b
+	IFT_DCN                           = 0x8d
+	IFT_DIGITALPOWERLINE              = 0x8a
+	IFT_DIGITALWRAPPEROVERHEADCHANNEL = 0xba
+	IFT_DLSW                          = 0x4a
+	IFT_DOCSCABLEDOWNSTREAM           = 0x80
+	IFT_DOCSCABLEMACLAYER             = 0x7f
+	IFT_DOCSCABLEUPSTREAM             = 0x81
+	IFT_DS0                           = 0x51
+	IFT_DS0BUNDLE                     = 0x52
+	IFT_DS1FDL                        = 0xaa
+	IFT_DS3                           = 0x1e
+	IFT_DTM                           = 0x8c
+	IFT_DVBASILN                      = 0xac
+	IFT_DVBASIOUT                     = 0xad
+	IFT_DVBRCCDOWNSTREAM              = 0x93
+	IFT_DVBRCCMACLAYER                = 0x92
+	IFT_DVBRCCUPSTREAM                = 0x94
+	IFT_ENC                           = 0xf4
+	IFT_EON                           = 0x19
+	IFT_EPLRS                         = 0x57
+	IFT_ESCON                         = 0x49
+	IFT_ETHER                         = 0x6
+	IFT_FAST                          = 0x7d
+	IFT_FASTETHER                     = 0x3e
+	IFT_FASTETHERFX                   = 0x45
+	IFT_FDDI                          = 0xf
+	IFT_FIBRECHANNEL                  = 0x38
+	IFT_FRAMERELAYINTERCONNECT        = 0x3a
+	IFT_FRAMERELAYMPI                 = 0x5c
+	IFT_FRDLCIENDPT                   = 0xc1
+	IFT_FRELAY                        = 0x20
+	IFT_FRELAYDCE                     = 0x2c
+	IFT_FRF16MFRBUNDLE                = 0xa3
+	IFT_FRFORWARD                     = 0x9e
+	IFT_G703AT2MB                     = 0x43
+	IFT_G703AT64K                     = 0x42
+	IFT_GIF                           = 0xf0
+	IFT_GIGABITETHERNET               = 0x75
+	IFT_GR303IDT                      = 0xb2
+	IFT_GR303RDT                      = 0xb1
+	IFT_H323GATEKEEPER                = 0xa4
+	IFT_H323PROXY                     = 0xa5
+	IFT_HDH1822                       = 0x3
+	IFT_HDLC                          = 0x76
+	IFT_HDSL2                         = 0xa8
+	IFT_HIPERLAN2                     = 0xb7
+	IFT_HIPPI                         = 0x2f
+	IFT_HIPPIINTERFACE                = 0x39
+	IFT_HOSTPAD                       = 0x5a
+	IFT_HSSI                          = 0x2e
+	IFT_HY                            = 0xe
+	IFT_IBM370PARCHAN                 = 0x48
+	IFT_IDSL                          = 0x9a
+	IFT_IEEE80211                     = 0x47
+	IFT_IEEE80212                     = 0x37
+	IFT_IEEE8023ADLAG                 = 0xa1
+	IFT_IFGSN                         = 0x91
+	IFT_IMT                           = 0xbe
+	IFT_INTERLEAVE                    = 0x7c
+	IFT_IP                            = 0x7e
+	IFT_IPFORWARD                     = 0x8e
+	IFT_IPOVERATM                     = 0x72
+	IFT_IPOVERCDLC                    = 0x6d
+	IFT_IPOVERCLAW                    = 0x6e
+	IFT_IPSWITCH                      = 0x4e
+	IFT_ISDN                          = 0x3f
+	IFT_ISDNBASIC                     = 0x14
+	IFT_ISDNPRIMARY                   = 0x15
+	IFT_ISDNS                         = 0x4b
+	IFT_ISDNU                         = 0x4c
+	IFT_ISO88022LLC                   = 0x29
+	IFT_ISO88023                      = 0x7
+	IFT_ISO88024                      = 0x8
+	IFT_ISO88025                      = 0x9
+	IFT_ISO88025CRFPINT               = 0x62
+	IFT_ISO88025DTR                   = 0x56
+	IFT_ISO88025FIBER                 = 0x73
+	IFT_ISO88026                      = 0xa
+	IFT_ISUP                          = 0xb3
+	IFT_L3IPXVLAN                     = 0x89
+	IFT_LAPB                          = 0x10
+	IFT_LAPD                          = 0x4d
+	IFT_LAPF                          = 0x77
+	IFT_LOCALTALK                     = 0x2a
+	IFT_LOOP                          = 0x18
+	IFT_MEDIAMAILOVERIP               = 0x8b
+	IFT_MFSIGLINK                     = 0xa7
+	IFT_MIOX25                        = 0x26
+	IFT_MODEM                         = 0x30
+	IFT_MPC                           = 0x71
+	IFT_MPLS                          = 0xa6
+	IFT_MPLSTUNNEL                    = 0x96
+	IFT_MSDSL                         = 0x8f
+	IFT_MVL                           = 0xbf
+	IFT_MYRINET                       = 0x63
+	IFT_NFAS                          = 0xaf
+	IFT_NSIP                          = 0x1b
+	IFT_OPTICALCHANNEL                = 0xc3
+	IFT_OPTICALTRANSPORT              = 0xc4
+	IFT_OTHER                         = 0x1
+	IFT_P10                           = 0xc
+	IFT_P80                           = 0xd
+	IFT_PARA                          = 0x22
+	IFT_PFLOG                         = 0xf6
+	IFT_PFSYNC                        = 0xf7
+	IFT_PLC                           = 0xae
+	IFT_POS                           = 0xab
+	IFT_PPPMULTILINKBUNDLE            = 0x6c
+	IFT_PROPBWAP2MP                   = 0xb8
+	IFT_PROPCNLS                      = 0x59
+	IFT_PROPDOCSWIRELESSDOWNSTREAM    = 0xb5
+	IFT_PROPDOCSWIRELESSMACLAYER      = 0xb4
+	IFT_PROPDOCSWIRELESSUPSTREAM      = 0xb6
+	IFT_PROPMUX                       = 0x36
+	IFT_PROPWIRELESSP2P               = 0x9d
+	IFT_PTPSERIAL                     = 0x16
+	IFT_PVC                           = 0xf1
+	IFT_QLLC                          = 0x44
+	IFT_RADIOMAC                      = 0xbc
+	IFT_RADSL                         = 0x5f
+	IFT_REACHDSL                      = 0xc0
+	IFT_RFC1483                       = 0x9f
+	IFT_RS232                         = 0x21
+	IFT_RSRB                          = 0x4f
+	IFT_SDLC                          = 0x11
+	IFT_SDSL                          = 0x60
+	IFT_SHDSL                         = 0xa9
+	IFT_SIP                           = 0x1f
+	IFT_SLIP                          = 0x1c
+	IFT_SMDSDXI                       = 0x2b
+	IFT_SMDSICIP                      = 0x34
+	IFT_SONET                         = 0x27
+	IFT_SONETOVERHEADCHANNEL          = 0xb9
+	IFT_SONETPATH                     = 0x32
+	IFT_SONETVT                       = 0x33
+	IFT_SRP                           = 0x97
+	IFT_SS7SIGLINK                    = 0x9c
+	IFT_STACKTOSTACK                  = 0x6f
+	IFT_STARLAN                       = 0xb
+	IFT_STF                           = 0xd7
+	IFT_T1                            = 0x12
+	IFT_TDLC                          = 0x74
+	IFT_TERMPAD                       = 0x5b
+	IFT_TR008                         = 0xb0
+	IFT_TRANSPHDLC                    = 0x7b
+	IFT_TUNNEL                        = 0x83
+	IFT_ULTRA                         = 0x1d
+	IFT_USB                           = 0xa0
+	IFT_V11                           = 0x40
+	IFT_V35                           = 0x2d
+	IFT_V36                           = 0x41
+	IFT_V37                           = 0x78
+	IFT_VDSL                          = 0x61
+	IFT_VIRTUALIPADDRESS              = 0x70
+	IFT_VOICEEM                       = 0x64
+	IFT_VOICEENCAP                    = 0x67
+	IFT_VOICEFXO                      = 0x65
+	IFT_VOICEFXS                      = 0x66
+	IFT_VOICEOVERATM                  = 0x98
+	IFT_VOICEOVERFRAMERELAY           = 0x99
+	IFT_VOICEOVERIP                   = 0x68
+	IFT_X213                          = 0x5d
+	IFT_X25                           = 0x5
+	IFT_X25DDN                        = 0x4
+	IFT_X25HUNTGROUP                  = 0x7a
+	IFT_X25MLP                        = 0x79
+	IFT_X25PLE                        = 0x28
+	IFT_XETHER                        = 0x1a
+
+	// missing constants on FreeBSD-11.1-RELEASE, copied from old values in ztypes_freebsd_arm.go
+	IFF_SMART       = 0x20
+	IFT_FAITH       = 0xf2
+	IFT_IPXIP       = 0xf9
+	IPPROTO_MAXID   = 0x34
+	IPV6_FAITH      = 0x1d
+	IP_FAITH        = 0x16
+	MAP_NORESERVE   = 0x40
+	MAP_RENAME      = 0x20
+	NET_RT_MAXID    = 0x6
+	RTF_PRCLONING   = 0x10000
+	RTM_OLDADD      = 0x9
+	RTM_OLDDEL      = 0xa
+	SIOCADDRT       = 0x8030720a
+	SIOCALIFADDR    = 0x8118691b
+	SIOCDELRT       = 0x8030720b
+	SIOCDLIFADDR    = 0x8118691d
+	SIOCGLIFADDR    = 0xc118691c
+	SIOCGLIFPHYADDR = 0xc118694b
+	SIOCSLIFPHYADDR = 0x8118694a
+)

vendor/golang.org/x/sys/unix/fcntl.go

@@ -0,0 +1,32 @@
+// Copyright 2014 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build darwin dragonfly freebsd linux netbsd openbsd
+
+package unix
+
+import "unsafe"
+
+// fcntl64Syscall is usually SYS_FCNTL, but is overridden on 32-bit Linux
+// systems by flock_linux_32bit.go to be SYS_FCNTL64.
+var fcntl64Syscall uintptr = SYS_FCNTL
+
+// FcntlInt performs a fcntl syscall on fd with the provided command and argument.
+func FcntlInt(fd uintptr, cmd, arg int) (int, error) {
+	valptr, _, errno := Syscall(fcntl64Syscall, fd, uintptr(cmd), uintptr(arg))
+	var err error
+	if errno != 0 {
+		err = errno
+	}
+	return int(valptr), err
+}
+
+// FcntlFlock performs a fcntl syscall for the F_GETLK, F_SETLK or F_SETLKW command.
+func FcntlFlock(fd uintptr, cmd int, lk *Flock_t) error {
+	_, _, errno := Syscall(fcntl64Syscall, fd, uintptr(cmd), uintptr(unsafe.Pointer(lk)))
+	if errno == 0 {
+		return nil
+	}
+	return errno
+}

vendor/golang.org/x/sys/unix/fcntl_linux_32bit.go

@@ -0,0 +1,13 @@
+// +build linux,386 linux,arm linux,mips linux,mipsle
+
+// Copyright 2014 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package unix
+
+func init() {
+	// On 32-bit Linux systems, the fcntl syscall that matches Go's
+	// Flock_t type is SYS_FCNTL64, not SYS_FCNTL.
+	fcntl64Syscall = SYS_FCNTL64
+}

vendor/golang.org/x/sys/unix/gccgo.go

@@ -0,0 +1,62 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build gccgo
+// +build !aix
+
+package unix
+
+import "syscall"
+
+// We can't use the gc-syntax .s files for gccgo. On the plus side
+// much of the functionality can be written directly in Go.
+
+//extern gccgoRealSyscallNoError
+func realSyscallNoError(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r uintptr)
+
+//extern gccgoRealSyscall
+func realSyscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r, errno uintptr)
+
+func SyscallNoError(trap, a1, a2, a3 uintptr) (r1, r2 uintptr) {
+	syscall.Entersyscall()
+	r := realSyscallNoError(trap, a1, a2, a3, 0, 0, 0, 0, 0, 0)
+	syscall.Exitsyscall()
+	return r, 0
+}
+
+func Syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err syscall.Errno) {
+	syscall.Entersyscall()
+	r, errno := realSyscall(trap, a1, a2, a3, 0, 0, 0, 0, 0, 0)
+	syscall.Exitsyscall()
+	return r, 0, syscall.Errno(errno)
+}
+
+func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.Errno) {
+	syscall.Entersyscall()
+	r, errno := realSyscall(trap, a1, a2, a3, a4, a5, a6, 0, 0, 0)
+	syscall.Exitsyscall()
+	return r, 0, syscall.Errno(errno)
+}
+
+func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno) {
+	syscall.Entersyscall()
+	r, errno := realSyscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9)
+	syscall.Exitsyscall()
+	return r, 0, syscall.Errno(errno)
+}
+
+func RawSyscallNoError(trap, a1, a2, a3 uintptr) (r1, r2 uintptr) {
+	r := realSyscallNoError(trap, a1, a2, a3, 0, 0, 0, 0, 0, 0)
+	return r, 0
+}
+
+func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err syscall.Errno) {
+	r, errno := realSyscall(trap, a1, a2, a3, 0, 0, 0, 0, 0, 0)
+	return r, 0, syscall.Errno(errno)
+}
+
+func RawSyscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.Errno) {
+	r, errno := realSyscall(trap, a1, a2, a3, a4, a5, a6, 0, 0, 0)
+	return r, 0, syscall.Errno(errno)
+}

vendor/golang.org/x/sys/unix/gccgo_c.c

@@ -0,0 +1,39 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build gccgo
+// +build !aix
+
+#include <errno.h>
+#include <stdint.h>
+#include <unistd.h>
+
+#define _STRINGIFY2_(x) #x
+#define _STRINGIFY_(x) _STRINGIFY2_(x)
+#define GOSYM_PREFIX _STRINGIFY_(__USER_LABEL_PREFIX__)
+
+// Call syscall from C code because the gccgo support for calling from
+// Go to C does not support varargs functions.
+
+struct ret {
+	uintptr_t r;
+	uintptr_t err;
+};
+
+struct ret
+gccgoRealSyscall(uintptr_t trap, uintptr_t a1, uintptr_t a2, uintptr_t a3, uintptr_t a4, uintptr_t a5, uintptr_t a6, uintptr_t a7, uintptr_t a8, uintptr_t a9)
+{
+	struct ret r;
+
+	errno = 0;
+	r.r = syscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9);
+	r.err = errno;
+	return r;
+}
+
+uintptr_t
+gccgoRealSyscallNoError(uintptr_t trap, uintptr_t a1, uintptr_t a2, uintptr_t a3, uintptr_t a4, uintptr_t a5, uintptr_t a6, uintptr_t a7, uintptr_t a8, uintptr_t a9)
+{
+	return syscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9);
+}

vendor/golang.org/x/sys/unix/gccgo_linux_amd64.go

@@ -0,0 +1,20 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build gccgo,linux,amd64
+
+package unix
+
+import "syscall"
+
+//extern gettimeofday
+func realGettimeofday(*Timeval, *byte) int32
+
+func gettimeofday(tv *Timeval) (err syscall.Errno) {
+	r := realGettimeofday(tv, nil)
+	if r < 0 {
+		return syscall.GetErrno()
+	}
+	return 0
+}

vendor/golang.org/x/sys/unix/ioctl.go

@@ -0,0 +1,30 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
+
+package unix
+
+import "runtime"
+
+// IoctlSetWinsize performs an ioctl on fd with a *Winsize argument.
+//
+// To change fd's window size, the req argument should be TIOCSWINSZ.
+func IoctlSetWinsize(fd int, req uint, value *Winsize) error {
+	// TODO: if we get the chance, remove the req parameter and
+	// hardcode TIOCSWINSZ.
+	err := ioctlSetWinsize(fd, req, value)
+	runtime.KeepAlive(value)
+	return err
+}
+
+// IoctlSetTermios performs an ioctl on fd with a *Termios.
+//
+// The req value will usually be TCSETA or TIOCSETA.
+func IoctlSetTermios(fd int, req uint, value *Termios) error {
+	// TODO: if we get the chance, remove the req parameter.
+	err := ioctlSetTermios(fd, req, value)
+	runtime.KeepAlive(value)
+	return err
+}

vendor/golang.org/x/sys/unix/mkall.sh

@@ -0,0 +1,198 @@
+#!/usr/bin/env bash
+# Copyright 2009 The Go Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+# This script runs or (given -n) prints suggested commands to generate files for
+# the Architecture/OS specified by the GOARCH and GOOS environment variables.
+# See README.md for more information about how the build system works.
+
+GOOSARCH="${GOOS}_${GOARCH}"
+
+# defaults
+mksyscall="./mksyscall.pl"
+mkerrors="./mkerrors.sh"
+zerrors="zerrors_$GOOSARCH.go"
+mksysctl=""
+zsysctl="zsysctl_$GOOSARCH.go"
+mksysnum=
+mktypes=
+run="sh"
+cmd=""
+
+case "$1" in
+-syscalls)
+	for i in zsyscall*go
+	do
+		# Run the command line that appears in the first line
+		# of the generated file to regenerate it.
+		sed 1q $i | sed 's;^// ;;' | sh > _$i && gofmt < _$i > $i
+		rm _$i
+	done
+	exit 0
+	;;
+-n)
+	run="cat"
+	cmd="echo"
+	shift
+esac
+
+case "$#" in
+0)
+	;;
+*)
+	echo 'usage: mkall.sh [-n]' 1>&2
+	exit 2
+esac
+
+if [[ "$GOOS" = "linux" ]] && [[ "$GOARCH" != "sparc64" ]]; then
+	# Use then new build system
+	# Files generated through docker (use $cmd so you can Ctl-C the build or run)
+	$cmd docker build --tag generate:$GOOS $GOOS
+	$cmd docker run --interactive --tty --volume $(dirname "$(readlink -f "$0")"):/build generate:$GOOS
+	exit
+fi
+
+GOOSARCH_in=syscall_$GOOSARCH.go
+case "$GOOSARCH" in
+_* | *_ | _)
+	echo 'undefined $GOOS_$GOARCH:' "$GOOSARCH" 1>&2
+	exit 1
+	;;
+aix_ppc)
+	mkerrors="$mkerrors -maix32"
+	mksyscall="perl mksyscall_aix.pl -aix"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+aix_ppc64)
+	mkerrors="$mkerrors -maix64"
+	mksyscall="perl mksyscall_aix.pl -aix"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+darwin_386)
+	mkerrors="$mkerrors -m32"
+	mksyscall="./mksyscall.pl -l32"
+	mksysnum="./mksysnum_darwin.pl $(xcrun --show-sdk-path --sdk macosx)/usr/include/sys/syscall.h"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+darwin_amd64)
+	mkerrors="$mkerrors -m64"
+	mksysnum="./mksysnum_darwin.pl $(xcrun --show-sdk-path --sdk macosx)/usr/include/sys/syscall.h"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+darwin_arm)
+	mkerrors="$mkerrors"
+	mksysnum="./mksysnum_darwin.pl $(xcrun --show-sdk-path --sdk iphoneos)/usr/include/sys/syscall.h"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+darwin_arm64)
+	mkerrors="$mkerrors -m64"
+	mksysnum="./mksysnum_darwin.pl $(xcrun --show-sdk-path --sdk iphoneos)/usr/include/sys/syscall.h"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+dragonfly_amd64)
+	mkerrors="$mkerrors -m64"
+	mksyscall="./mksyscall.pl -dragonfly"
+	mksysnum="curl -s 'http://gitweb.dragonflybsd.org/dragonfly.git/blob_plain/HEAD:/sys/kern/syscalls.master' | ./mksysnum_dragonfly.pl"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+freebsd_386)
+	mkerrors="$mkerrors -m32"
+	mksyscall="./mksyscall.pl -l32"
+	mksysnum="curl -s 'http://svn.freebsd.org/base/stable/10/sys/kern/syscalls.master' | ./mksysnum_freebsd.pl"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+freebsd_amd64)
+	mkerrors="$mkerrors -m64"
+	mksysnum="curl -s 'http://svn.freebsd.org/base/stable/10/sys/kern/syscalls.master' | ./mksysnum_freebsd.pl"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+freebsd_arm)
+	mkerrors="$mkerrors"
+	mksyscall="./mksyscall.pl -l32 -arm"
+	mksysnum="curl -s 'http://svn.freebsd.org/base/stable/10/sys/kern/syscalls.master' | ./mksysnum_freebsd.pl"
+	# Let the type of C char be signed for making the bare syscall
+	# API consistent across platforms.
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
+	;;
+linux_sparc64)
+	GOOSARCH_in=syscall_linux_sparc64.go
+	unistd_h=/usr/include/sparc64-linux-gnu/asm/unistd.h
+	mkerrors="$mkerrors -m64"
+	mksysnum="./mksysnum_linux.pl $unistd_h"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+netbsd_386)
+	mkerrors="$mkerrors -m32"
+	mksyscall="./mksyscall.pl -l32 -netbsd"
+	mksysnum="curl -s 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_netbsd.pl"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+netbsd_amd64)
+	mkerrors="$mkerrors -m64"
+	mksyscall="./mksyscall.pl -netbsd"
+	mksysnum="curl -s 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_netbsd.pl"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+netbsd_arm)
+	mkerrors="$mkerrors"
+	mksyscall="./mksyscall.pl -l32 -netbsd -arm"
+	mksysnum="curl -s 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_netbsd.pl"
+	# Let the type of C char be signed for making the bare syscall
+	# API consistent across platforms.
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
+	;;
+openbsd_386)
+	mkerrors="$mkerrors -m32"
+	mksyscall="./mksyscall.pl -l32 -openbsd"
+	mksysctl="./mksysctl_openbsd.pl"
+	mksysnum="curl -s 'http://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_openbsd.pl"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+openbsd_amd64)
+	mkerrors="$mkerrors -m64"
+	mksyscall="./mksyscall.pl -openbsd"
+	mksysctl="./mksysctl_openbsd.pl"
+	mksysnum="curl -s 'http://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_openbsd.pl"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+openbsd_arm)
+	mkerrors="$mkerrors"
+	mksyscall="./mksyscall.pl -l32 -openbsd -arm"
+	mksysctl="./mksysctl_openbsd.pl"
+	mksysnum="curl -s 'http://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_openbsd.pl"
+	# Let the type of C char be signed for making the bare syscall
+	# API consistent across platforms.
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
+	;;
+solaris_amd64)
+	mksyscall="./mksyscall_solaris.pl"
+	mkerrors="$mkerrors -m64"
+	mksysnum=
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+*)
+	echo 'unrecognized $GOOS_$GOARCH: ' "$GOOSARCH" 1>&2
+	exit 1
+	;;
+esac
+
+(
+	if [ -n "$mkerrors" ]; then echo "$mkerrors |gofmt >$zerrors"; fi
+	case "$GOOS" in
+	*)
+		syscall_goos="syscall_$GOOS.go"
+		case "$GOOS" in
+		darwin | dragonfly | freebsd | netbsd | openbsd)
+			syscall_goos="syscall_bsd.go $syscall_goos"
+			;;
+		esac
+		if [ -n "$mksyscall" ]; then echo "$mksyscall -tags $GOOS,$GOARCH $syscall_goos $GOOSARCH_in |gofmt >zsyscall_$GOOSARCH.go"; fi
+		;;
+	esac
+	if [ -n "$mksysctl" ]; then echo "$mksysctl |gofmt >$zsysctl"; fi
+	if [ -n "$mksysnum" ]; then echo "$mksysnum |gofmt >zsysnum_$GOOSARCH.go"; fi
+	if [ -n "$mktypes" ]; then
+		echo "$mktypes types_$GOOS.go | go run mkpost.go > ztypes_$GOOSARCH.go";
+	fi
+) | $run

vendor/golang.org/x/sys/unix/mkerrors.sh

@@ -0,0 +1,652 @@
+#!/usr/bin/env bash
+# Copyright 2009 The Go Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+# Generate Go code listing errors and other #defined constant
+# values (ENAMETOOLONG etc.), by asking the preprocessor
+# about the definitions.
+
+unset LANG
+export LC_ALL=C
+export LC_CTYPE=C
+
+if test -z "$GOARCH" -o -z "$GOOS"; then
+	echo 1>&2 "GOARCH or GOOS not defined in environment"
+	exit 1
+fi
+
+# Check that we are using the new build system if we should
+if [[ "$GOOS" = "linux" ]] && [[ "$GOARCH" != "sparc64" ]]; then
+	if [[ "$GOLANG_SYS_BUILD" != "docker" ]]; then
+		echo 1>&2 "In the new build system, mkerrors should not be called directly."
+		echo 1>&2 "See README.md"
+		exit 1
+	fi
+fi
+
+if [[ "$GOOS" = "aix" ]]; then
+	CC=${CC:-gcc}
+else
+	CC=${CC:-cc}
+fi
+
+if [[ "$GOOS" = "solaris" ]]; then
+	# Assumes GNU versions of utilities in PATH.
+	export PATH=/usr/gnu/bin:$PATH
+fi
+
+uname=$(uname)
+
+includes_AIX='
+#include <net/if.h>
+#include <net/netopt.h>
+#include <netinet/ip_mroute.h>
+#include <sys/protosw.h>
+#include <sys/stropts.h>
+#include <sys/mman.h>
+#include <sys/poll.h>
+#include <sys/termio.h>
+#include <termios.h>
+#include <fcntl.h>
+
+#define AF_LOCAL AF_UNIX
+'
+
+includes_Darwin='
+#define _DARWIN_C_SOURCE
+#define KERNEL
+#define _DARWIN_USE_64_BIT_INODE
+#include <stdint.h>
+#include <sys/attr.h>
+#include <sys/types.h>
+#include <sys/event.h>
+#include <sys/ptrace.h>
+#include <sys/socket.h>
+#include <sys/sockio.h>
+#include <sys/sysctl.h>
+#include <sys/mman.h>
+#include <sys/mount.h>
+#include <sys/utsname.h>
+#include <sys/wait.h>
+#include <sys/xattr.h>
+#include <net/bpf.h>
+#include <net/if.h>
+#include <net/if_types.h>
+#include <net/route.h>
+#include <netinet/in.h>
+#include <netinet/ip.h>
+#include <termios.h>
+'
+
+includes_DragonFly='
+#include <sys/types.h>
+#include <sys/event.h>
+#include <sys/socket.h>
+#include <sys/sockio.h>
+#include <sys/stat.h>
+#include <sys/sysctl.h>
+#include <sys/mman.h>
+#include <sys/mount.h>
+#include <sys/wait.h>
+#include <sys/ioctl.h>
+#include <net/bpf.h>
+#include <net/if.h>
+#include <net/if_types.h>
+#include <net/route.h>
+#include <netinet/in.h>
+#include <termios.h>
+#include <netinet/ip.h>
+#include <net/ip_mroute/ip_mroute.h>
+'
+
+includes_FreeBSD='
+#include <sys/capability.h>
+#include <sys/param.h>
+#include <sys/types.h>
+#include <sys/event.h>
+#include <sys/socket.h>
+#include <sys/sockio.h>
+#include <sys/stat.h>
+#include <sys/sysctl.h>
+#include <sys/mman.h>
+#include <sys/mount.h>
+#include <sys/wait.h>
+#include <sys/ioctl.h>
+#include <net/bpf.h>
+#include <net/if.h>
+#include <net/if_types.h>
+#include <net/route.h>
+#include <netinet/in.h>
+#include <termios.h>
+#include <netinet/ip.h>
+#include <netinet/ip_mroute.h>
+#include <sys/extattr.h>
+
+#if __FreeBSD__ >= 10
+#define IFT_CARP	0xf8	// IFT_CARP is deprecated in FreeBSD 10
+#undef SIOCAIFADDR
+#define SIOCAIFADDR	_IOW(105, 26, struct oifaliasreq)	// ifaliasreq contains if_data
+#undef SIOCSIFPHYADDR
+#define SIOCSIFPHYADDR	_IOW(105, 70, struct oifaliasreq)	// ifaliasreq contains if_data
+#endif
+'
+
+includes_Linux='
+#define _LARGEFILE_SOURCE
+#define _LARGEFILE64_SOURCE
+#ifndef __LP64__
+#define _FILE_OFFSET_BITS 64
+#endif
+#define _GNU_SOURCE
+
+// <sys/ioctl.h> is broken on powerpc64, as it fails to include definitions of
+// these structures. We just include them copied from <bits/termios.h>.
+#if defined(__powerpc__)
+struct sgttyb {
+        char    sg_ispeed;
+        char    sg_ospeed;
+        char    sg_erase;
+        char    sg_kill;
+        short   sg_flags;
+};
+
+struct tchars {
+        char    t_intrc;
+        char    t_quitc;
+        char    t_startc;
+        char    t_stopc;
+        char    t_eofc;
+        char    t_brkc;
+};
+
+struct ltchars {
+        char    t_suspc;
+        char    t_dsuspc;
+        char    t_rprntc;
+        char    t_flushc;
+        char    t_werasc;
+        char    t_lnextc;
+};
+#endif
+
+#include <bits/sockaddr.h>
+#include <sys/epoll.h>
+#include <sys/eventfd.h>
+#include <sys/inotify.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/mount.h>
+#include <sys/prctl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/time.h>
+#include <sys/socket.h>
+#include <sys/xattr.h>
+#include <linux/if.h>
+#include <linux/if_alg.h>
+#include <linux/if_arp.h>
+#include <linux/if_ether.h>
+#include <linux/if_tun.h>
+#include <linux/if_packet.h>
+#include <linux/if_addr.h>
+#include <linux/falloc.h>
+#include <linux/filter.h>
+#include <linux/fs.h>
+#include <linux/keyctl.h>
+#include <linux/magic.h>
+#include <linux/memfd.h>
+#include <linux/netfilter/nfnetlink.h>
+#include <linux/netlink.h>
+#include <linux/net_namespace.h>
+#include <linux/perf_event.h>
+#include <linux/random.h>
+#include <linux/reboot.h>
+#include <linux/rtnetlink.h>
+#include <linux/ptrace.h>
+#include <linux/sched.h>
+#include <linux/seccomp.h>
+#include <linux/sockios.h>
+#include <linux/wait.h>
+#include <linux/icmpv6.h>
+#include <linux/serial.h>
+#include <linux/can.h>
+#include <linux/vm_sockets.h>
+#include <linux/taskstats.h>
+#include <linux/genetlink.h>
+#include <linux/watchdog.h>
+#include <linux/hdreg.h>
+#include <linux/rtc.h>
+#include <linux/if_xdp.h>
+#include <mtd/ubi-user.h>
+#include <net/route.h>
+#include <asm/termbits.h>
+
+#ifndef MSG_FASTOPEN
+#define MSG_FASTOPEN    0x20000000
+#endif
+
+#ifndef PTRACE_GETREGS
+#define PTRACE_GETREGS	0xc
+#endif
+
+#ifndef PTRACE_SETREGS
+#define PTRACE_SETREGS	0xd
+#endif
+
+#ifndef SOL_NETLINK
+#define SOL_NETLINK	270
+#endif
+
+#ifdef SOL_BLUETOOTH
+// SPARC includes this in /usr/include/sparc64-linux-gnu/bits/socket.h
+// but it is already in bluetooth_linux.go
+#undef SOL_BLUETOOTH
+#endif
+
+// Certain constants are missing from the fs/crypto UAPI
+#define FS_KEY_DESC_PREFIX              "fscrypt:"
+#define FS_KEY_DESC_PREFIX_SIZE         8
+#define FS_MAX_KEY_SIZE                 64
+
+// XDP socket constants do not appear to be picked up otherwise.
+// Copied from samples/bpf/xdpsock_user.c.
+#ifndef SOL_XDP
+#define SOL_XDP 283
+#endif
+
+#ifndef AF_XDP
+#define AF_XDP 44
+#endif
+'
+
+includes_NetBSD='
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/event.h>
+#include <sys/extattr.h>
+#include <sys/mman.h>
+#include <sys/mount.h>
+#include <sys/socket.h>
+#include <sys/sockio.h>
+#include <sys/sysctl.h>
+#include <sys/termios.h>
+#include <sys/ttycom.h>
+#include <sys/wait.h>
+#include <net/bpf.h>
+#include <net/if.h>
+#include <net/if_types.h>
+#include <net/route.h>
+#include <netinet/in.h>
+#include <netinet/in_systm.h>
+#include <netinet/ip.h>
+#include <netinet/ip_mroute.h>
+#include <netinet/if_ether.h>
+
+// Needed since <sys/param.h> refers to it...
+#define schedppq 1
+'
+
+includes_OpenBSD='
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/event.h>
+#include <sys/mman.h>
+#include <sys/mount.h>
+#include <sys/socket.h>
+#include <sys/sockio.h>
+#include <sys/stat.h>
+#include <sys/sysctl.h>
+#include <sys/termios.h>
+#include <sys/ttycom.h>
+#include <sys/unistd.h>
+#include <sys/wait.h>
+#include <net/bpf.h>
+#include <net/if.h>
+#include <net/if_types.h>
+#include <net/if_var.h>
+#include <net/route.h>
+#include <netinet/in.h>
+#include <netinet/in_systm.h>
+#include <netinet/ip.h>
+#include <netinet/ip_mroute.h>
+#include <netinet/if_ether.h>
+#include <net/if_bridge.h>
+
+// We keep some constants not supported in OpenBSD 5.5 and beyond for
+// the promise of compatibility.
+#define EMUL_ENABLED		0x1
+#define EMUL_NATIVE		0x2
+#define IPV6_FAITH		0x1d
+#define IPV6_OPTIONS		0x1
+#define IPV6_RTHDR_STRICT	0x1
+#define IPV6_SOCKOPT_RESERVED1	0x3
+#define SIOCGIFGENERIC		0xc020693a
+#define SIOCSIFGENERIC		0x80206939
+#define WALTSIG			0x4
+'
+
+includes_SunOS='
+#include <limits.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/sockio.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+#include <sys/wait.h>
+#include <sys/ioctl.h>
+#include <sys/mkdev.h>
+#include <net/bpf.h>
+#include <net/if.h>
+#include <net/if_arp.h>
+#include <net/if_types.h>
+#include <net/route.h>
+#include <netinet/in.h>
+#include <termios.h>
+#include <netinet/ip.h>
+#include <netinet/ip_mroute.h>
+'
+
+
+includes='
+#include <sys/types.h>
+#include <sys/file.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netinet/ip.h>
+#include <netinet/ip6.h>
+#include <netinet/tcp.h>
+#include <errno.h>
+#include <sys/signal.h>
+#include <signal.h>
+#include <sys/resource.h>
+#include <time.h>
+'
+ccflags="$@"
+
+# Write go tool cgo -godefs input.
+(
+	echo package unix
+	echo
+	echo '/*'
+	indirect="includes_$(uname)"
+	echo "${!indirect} $includes"
+	echo '*/'
+	echo 'import "C"'
+	echo 'import "syscall"'
+	echo
+	echo 'const ('
+
+	# The gcc command line prints all the #defines
+	# it encounters while processing the input
+	echo "${!indirect} $includes" | $CC -x c - -E -dM $ccflags |
+	awk '
+		$1 != "#define" || $2 ~ /\(/ || $3 == "" {next}
+
+		$2 ~ /^E([ABCD]X|[BIS]P|[SD]I|S|FL)$/ {next}  # 386 registers
+		$2 ~ /^(SIGEV_|SIGSTKSZ|SIGRT(MIN|MAX))/ {next}
+		$2 ~ /^(SCM_SRCRT)$/ {next}
+		$2 ~ /^(MAP_FAILED)$/ {next}
+		$2 ~ /^ELF_.*$/ {next}# <asm/elf.h> contains ELF_ARCH, etc.
+
+		$2 ~ /^EXTATTR_NAMESPACE_NAMES/ ||
+		$2 ~ /^EXTATTR_NAMESPACE_[A-Z]+_STRING/ {next}
+
+		$2 !~ /^ECCAPBITS/ &&
+		$2 !~ /^ETH_/ &&
+		$2 !~ /^EPROC_/ &&
+		$2 !~ /^EQUIV_/ &&
+		$2 !~ /^EXPR_/ &&
+		$2 ~ /^E[A-Z0-9_]+$/ ||
+		$2 ~ /^B[0-9_]+$/ ||
+		$2 ~ /^(OLD|NEW)DEV$/ ||
+		$2 == "BOTHER" ||
+		$2 ~ /^CI?BAUD(EX)?$/ ||
+		$2 == "IBSHIFT" ||
+		$2 ~ /^V[A-Z0-9]+$/ ||
+		$2 ~ /^CS[A-Z0-9]/ ||
+		$2 ~ /^I(SIG|CANON|CRNL|UCLC|EXTEN|MAXBEL|STRIP|UTF8)$/ ||
+		$2 ~ /^IGN/ ||
+		$2 ~ /^IX(ON|ANY|OFF)$/ ||
+		$2 ~ /^IN(LCR|PCK)$/ ||
+		$2 !~ "X86_CR3_PCID_NOFLUSH" &&
+		$2 ~ /(^FLU?SH)|(FLU?SH$)/ ||
+		$2 ~ /^C(LOCAL|READ|MSPAR|RTSCTS)$/ ||
+		$2 == "BRKINT" ||
+		$2 == "HUPCL" ||
+		$2 == "PENDIN" ||
+		$2 == "TOSTOP" ||
+		$2 == "XCASE" ||
+		$2 == "ALTWERASE" ||
+		$2 == "NOKERNINFO" ||
+		$2 ~ /^PAR/ ||
+		$2 ~ /^SIG[^_]/ ||
+		$2 ~ /^O[CNPFPL][A-Z]+[^_][A-Z]+$/ ||
+		$2 ~ /^(NL|CR|TAB|BS|VT|FF)DLY$/ ||
+		$2 ~ /^(NL|CR|TAB|BS|VT|FF)[0-9]$/ ||
+		$2 ~ /^O?XTABS$/ ||
+		$2 ~ /^TC[IO](ON|OFF)$/ ||
+		$2 ~ /^IN_/ ||
+		$2 ~ /^LOCK_(SH|EX|NB|UN)$/ ||
+		$2 ~ /^(AF|SOCK|SO|SOL|IPPROTO|IP|IPV6|ICMP6|TCP|EVFILT|NOTE|EV|SHUT|PROT|MAP|MFD|T?PACKET|MSG|SCM|MCL|DT|MADV|PR)_/ ||
+		$2 ~ /^TP_STATUS_/ ||
+		$2 ~ /^FALLOC_/ ||
+		$2 == "ICMPV6_FILTER" ||
+		$2 == "SOMAXCONN" ||
+		$2 == "NAME_MAX" ||
+		$2 == "IFNAMSIZ" ||
+		$2 ~ /^CTL_(HW|KERN|MAXNAME|NET|QUERY)$/ ||
+		$2 ~ /^KERN_(HOSTNAME|OS(RELEASE|TYPE)|VERSION)$/ ||
+		$2 ~ /^HW_MACHINE$/ ||
+		$2 ~ /^SYSCTL_VERS/ ||
+		$2 !~ "MNT_BITS" &&
+		$2 ~ /^(MS|MNT|UMOUNT)_/ ||
+		$2 ~ /^TUN(SET|GET|ATTACH|DETACH)/ ||
+		$2 ~ /^(O|F|E?FD|NAME|S|PTRACE|PT)_/ ||
+		$2 ~ /^LINUX_REBOOT_CMD_/ ||
+		$2 ~ /^LINUX_REBOOT_MAGIC[12]$/ ||
+		$2 !~ "NLA_TYPE_MASK" &&
+		$2 ~ /^(NETLINK|NLM|NLMSG|NLA|IFA|IFAN|RT|RTC|RTCF|RTN|RTPROT|RTNH|ARPHRD|ETH_P|NETNSA)_/ ||
+		$2 ~ /^SIOC/ ||
+		$2 ~ /^TIOC/ ||
+		$2 ~ /^TCGET/ ||
+		$2 ~ /^TCSET/ ||
+		$2 ~ /^TC(FLSH|SBRKP?|XONC)$/ ||
+		$2 !~ "RTF_BITS" &&
+		$2 ~ /^(IFF|IFT|NET_RT|RTM|RTF|RTV|RTA|RTAX)_/ ||
+		$2 ~ /^BIOC/ ||
+		$2 ~ /^RUSAGE_(SELF|CHILDREN|THREAD)/ ||
+		$2 ~ /^RLIMIT_(AS|CORE|CPU|DATA|FSIZE|LOCKS|MEMLOCK|MSGQUEUE|NICE|NOFILE|NPROC|RSS|RTPRIO|RTTIME|SIGPENDING|STACK)|RLIM_INFINITY/ ||
+		$2 ~ /^PRIO_(PROCESS|PGRP|USER)/ ||
+		$2 ~ /^CLONE_[A-Z_]+/ ||
+		$2 !~ /^(BPF_TIMEVAL)$/ &&
+		$2 ~ /^(BPF|DLT)_/ ||
+		$2 ~ /^CLOCK_/ ||
+		$2 ~ /^CAN_/ ||
+		$2 ~ /^CAP_/ ||
+		$2 ~ /^ALG_/ ||
+		$2 ~ /^FS_(POLICY_FLAGS|KEY_DESC|ENCRYPTION_MODE|[A-Z0-9_]+_KEY_SIZE|IOC_(GET|SET)_ENCRYPTION)/ ||
+		$2 ~ /^GRND_/ ||
+		$2 ~ /^KEY_(SPEC|REQKEY_DEFL)_/ ||
+		$2 ~ /^KEYCTL_/ ||
+		$2 ~ /^PERF_EVENT_IOC_/ ||
+		$2 ~ /^SECCOMP_MODE_/ ||
+		$2 ~ /^SPLICE_/ ||
+		$2 ~ /^SYNC_FILE_RANGE_/ ||
+		$2 !~ /^AUDIT_RECORD_MAGIC/ &&
+		$2 !~ /IOC_MAGIC/ &&
+		$2 ~ /^[A-Z][A-Z0-9_]+_MAGIC2?$/ ||
+		$2 ~ /^(VM|VMADDR)_/ ||
+		$2 ~ /^IOCTL_VM_SOCKETS_/ ||
+		$2 ~ /^(TASKSTATS|TS)_/ ||
+		$2 ~ /^CGROUPSTATS_/ ||
+		$2 ~ /^GENL_/ ||
+		$2 ~ /^STATX_/ ||
+		$2 ~ /^RENAME/ ||
+		$2 ~ /^UBI_IOC[A-Z]/ ||
+		$2 ~ /^UTIME_/ ||
+		$2 ~ /^XATTR_(CREATE|REPLACE|NO(DEFAULT|FOLLOW|SECURITY)|SHOWCOMPRESSION)/ ||
+		$2 ~ /^ATTR_(BIT_MAP_COUNT|(CMN|VOL|FILE)_)/ ||
+		$2 ~ /^FSOPT_/ ||
+		$2 ~ /^WDIOC_/ ||
+		$2 ~ /^NFN/ ||
+		$2 ~ /^XDP_/ ||
+		$2 ~ /^(HDIO|WIN|SMART)_/ ||
+		$2 !~ "WMESGLEN" &&
+		$2 ~ /^W[A-Z0-9]+$/ ||
+		$2 ~ /^BLK[A-Z]*(GET$|SET$|BUF$|PART$|SIZE)/ {printf("\t%s = C.%s\n", $2, $2)}
+		$2 ~ /^__WCOREFLAG$/ {next}
+		$2 ~ /^__W[A-Z0-9]+$/ {printf("\t%s = C.%s\n", substr($2,3), $2)}
+
+		{next}
+	' | sort
+
+	echo ')'
+) >_const.go
+
+# Pull out the error names for later.
+errors=$(
+	echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags |
+	awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print $2 }' |
+	sort
+)
+
+# Pull out the signal names for later.
+signals=$(
+	echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
+	awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print $2 }' |
+	egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT|SIGMAX64)' |
+	sort
+)
+
+# Again, writing regexps to a file.
+echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags |
+	awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print "^\t" $2 "[ \t]*=" }' |
+	sort >_error.grep
+echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
+	awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print "^\t" $2 "[ \t]*=" }' |
+	egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT|SIGMAX64)' |
+	sort >_signal.grep
+
+echo '// mkerrors.sh' "$@"
+echo '// Code generated by the command above; see README.md. DO NOT EDIT.'
+echo
+echo "// +build ${GOARCH},${GOOS}"
+echo
+go tool cgo -godefs -- "$@" _const.go >_error.out
+cat _error.out | grep -vf _error.grep | grep -vf _signal.grep
+echo
+echo '// Errors'
+echo 'const ('
+cat _error.out | grep -f _error.grep | sed 's/=\(.*\)/= syscall.Errno(\1)/'
+echo ')'
+
+echo
+echo '// Signals'
+echo 'const ('
+cat _error.out | grep -f _signal.grep | sed 's/=\(.*\)/= syscall.Signal(\1)/'
+echo ')'
+
+# Run C program to print error and syscall strings.
+(
+	echo -E "
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <ctype.h>
+#include <string.h>
+#include <signal.h>
+
+#define nelem(x) (sizeof(x)/sizeof((x)[0]))
+
+enum { A = 'A', Z = 'Z', a = 'a', z = 'z' }; // avoid need for single quotes below
+
+struct tuple {
+	int num;
+	const char *name;
+};
+
+struct tuple errors[] = {
+"
+	for i in $errors
+	do
+		echo -E '	{'$i', "'$i'" },'
+	done
+
+	echo -E "
+};
+
+struct tuple signals[] = {
+"
+	for i in $signals
+	do
+		echo -E '	{'$i', "'$i'" },'
+	done
+
+	# Use -E because on some systems bash builtin interprets \n itself.
+	echo -E '
+};
+
+static int
+tuplecmp(const void *a, const void *b)
+{
+	return ((struct tuple *)a)->num - ((struct tuple *)b)->num;
+}
+
+int
+main(void)
+{
+	int i, e;
+	char buf[1024], *p;
+
+	printf("\n\n// Error table\n");
+	printf("var errorList = [...]struct {\n");
+	printf("\tnum  syscall.Errno\n");
+	printf("\tname string\n");
+	printf("\tdesc string\n");
+	printf("} {\n");
+	qsort(errors, nelem(errors), sizeof errors[0], tuplecmp);
+	for(i=0; i<nelem(errors); i++) {
+		e = errors[i].num;
+		if(i > 0 && errors[i-1].num == e)
+			continue;
+		strcpy(buf, strerror(e));
+		// lowercase first letter: Bad -> bad, but STREAM -> STREAM.
+		if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z)
+			buf[0] += a - A;
+		printf("\t{ %d, \"%s\", \"%s\" },\n", e, errors[i].name, buf);
+	}
+	printf("}\n\n");
+
+	printf("\n\n// Signal table\n");
+	printf("var signalList = [...]struct {\n");
+	printf("\tnum  syscall.Signal\n");
+	printf("\tname string\n");
+	printf("\tdesc string\n");
+	printf("} {\n");
+	qsort(signals, nelem(signals), sizeof signals[0], tuplecmp);
+	for(i=0; i<nelem(signals); i++) {
+		e = signals[i].num;
+		if(i > 0 && signals[i-1].num == e)
+			continue;
+		strcpy(buf, strsignal(e));
+		// lowercase first letter: Bad -> bad, but STREAM -> STREAM.
+		if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z)
+			buf[0] += a - A;
+		// cut trailing : number.
+		p = strrchr(buf, ":"[0]);
+		if(p)
+			*p = '\0';
+		printf("\t{ %d, \"%s\", \"%s\" },\n", e, signals[i].name, buf);
+	}
+	printf("}\n\n");
+
+	return 0;
+}
+
+'
+) >_errors.c
+
+$CC $ccflags -o _errors _errors.c && $GORUN ./_errors && rm -f _errors.c _errors _const.go _error.grep _signal.grep _error.out

vendor/golang.org/x/sys/unix/mkpost.go

@@ -0,0 +1,98 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build ignore
+
+// mkpost processes the output of cgo -godefs to
+// modify the generated types. It is used to clean up
+// the sys API in an architecture specific manner.
+//
+// mkpost is run after cgo -godefs; see README.md.
+package main
+
+import (
+	"bytes"
+	"fmt"
+	"go/format"
+	"io/ioutil"
+	"log"
+	"os"
+	"regexp"
+)
+
+func main() {
+	// Get the OS and architecture (using GOARCH_TARGET if it exists)
+	goos := os.Getenv("GOOS")
+	goarch := os.Getenv("GOARCH_TARGET")
+	if goarch == "" {
+		goarch = os.Getenv("GOARCH")
+	}
+	// Check that we are using the new build system if we should be.
+	if goos == "linux" && goarch != "sparc64" {
+		if os.Getenv("GOLANG_SYS_BUILD") != "docker" {
+			os.Stderr.WriteString("In the new build system, mkpost should not be called directly.\n")
+			os.Stderr.WriteString("See README.md\n")
+			os.Exit(1)
+		}
+	}
+
+	b, err := ioutil.ReadAll(os.Stdin)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	// Intentionally export __val fields in Fsid and Sigset_t
+	valRegex := regexp.MustCompile(`type (Fsid|Sigset_t) struct {(\s+)X__val(\s+\S+\s+)}`)
+	b = valRegex.ReplaceAll(b, []byte("type $1 struct {${2}Val$3}"))
+
+	// If we have empty Ptrace structs, we should delete them. Only s390x emits
+	// nonempty Ptrace structs.
+	ptraceRexexp := regexp.MustCompile(`type Ptrace((Psw|Fpregs|Per) struct {\s*})`)
+	b = ptraceRexexp.ReplaceAll(b, nil)
+
+	// Replace the control_regs union with a blank identifier for now.
+	controlRegsRegex := regexp.MustCompile(`(Control_regs)\s+\[0\]uint64`)
+	b = controlRegsRegex.ReplaceAll(b, []byte("_ [0]uint64"))
+
+	// Remove fields that are added by glibc
+	// Note that this is unstable as the identifers are private.
+	removeFieldsRegex := regexp.MustCompile(`X__glibc\S*`)
+	b = removeFieldsRegex.ReplaceAll(b, []byte("_"))
+
+	// Convert [65]int8 to [65]byte in Utsname members to simplify
+	// conversion to string; see golang.org/issue/20753
+	convertUtsnameRegex := regexp.MustCompile(`((Sys|Node|Domain)name|Release|Version|Machine)(\s+)\[(\d+)\]u?int8`)
+	b = convertUtsnameRegex.ReplaceAll(b, []byte("$1$3[$4]byte"))
+
+	// Remove spare fields (e.g. in Statx_t)
+	spareFieldsRegex := regexp.MustCompile(`X__spare\S*`)
+	b = spareFieldsRegex.ReplaceAll(b, []byte("_"))
+
+	// Remove cgo padding fields
+	removePaddingFieldsRegex := regexp.MustCompile(`Pad_cgo_\d+`)
+	b = removePaddingFieldsRegex.ReplaceAll(b, []byte("_"))
+
+	// Remove padding, hidden, or unused fields
+	removeFieldsRegex = regexp.MustCompile(`\b(X_\S+|Padding)`)
+	b = removeFieldsRegex.ReplaceAll(b, []byte("_"))
+
+	// Remove the first line of warning from cgo
+	b = b[bytes.IndexByte(b, '\n')+1:]
+	// Modify the command in the header to include:
+	//  mkpost, our own warning, and a build tag.
+	replacement := fmt.Sprintf(`$1 | go run mkpost.go
+// Code generated by the command above; see README.md. DO NOT EDIT.
+
+// +build %s,%s`, goarch, goos)
+	cgoCommandRegex := regexp.MustCompile(`(cgo -godefs .*)`)
+	b = cgoCommandRegex.ReplaceAll(b, []byte(replacement))
+
+	// gofmt
+	b, err = format.Source(b)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	os.Stdout.Write(b)
+}

vendor/golang.org/x/sys/unix/mksyscall.pl

@@ -0,0 +1,341 @@
+#!/usr/bin/env perl
+# Copyright 2009 The Go Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+# This program reads a file containing function prototypes
+# (like syscall_darwin.go) and generates system call bodies.
+# The prototypes are marked by lines beginning with "//sys"
+# and read like func declarations if //sys is replaced by func, but:
+#	* The parameter lists must give a name for each argument.
+#	  This includes return parameters.
+#	* The parameter lists must give a type for each argument:
+#	  the (x, y, z int) shorthand is not allowed.
+#	* If the return parameter is an error number, it must be named errno.
+
+# A line beginning with //sysnb is like //sys, except that the
+# goroutine will not be suspended during the execution of the system
+# call.  This must only be used for system calls which can never
+# block, as otherwise the system call could cause all goroutines to
+# hang.
+
+use strict;
+
+my $cmdline = "mksyscall.pl " . join(' ', @ARGV);
+my $errors = 0;
+my $_32bit = "";
+my $plan9 = 0;
+my $openbsd = 0;
+my $netbsd = 0;
+my $dragonfly = 0;
+my $arm = 0; # 64-bit value should use (even, odd)-pair
+my $tags = "";  # build tags
+
+if($ARGV[0] eq "-b32") {
+	$_32bit = "big-endian";
+	shift;
+} elsif($ARGV[0] eq "-l32") {
+	$_32bit = "little-endian";
+	shift;
+}
+if($ARGV[0] eq "-plan9") {
+	$plan9 = 1;
+	shift;
+}
+if($ARGV[0] eq "-openbsd") {
+	$openbsd = 1;
+	shift;
+}
+if($ARGV[0] eq "-netbsd") {
+	$netbsd = 1;
+	shift;
+}
+if($ARGV[0] eq "-dragonfly") {
+	$dragonfly = 1;
+	shift;
+}
+if($ARGV[0] eq "-arm") {
+	$arm = 1;
+	shift;
+}
+if($ARGV[0] eq "-tags") {
+	shift;
+	$tags = $ARGV[0];
+	shift;
+}
+
+if($ARGV[0] =~ /^-/) {
+	print STDERR "usage: mksyscall.pl [-b32 | -l32] [-tags x,y] [file ...]\n";
+	exit 1;
+}
+
+# Check that we are using the new build system if we should
+if($ENV{'GOOS'} eq "linux" && $ENV{'GOARCH'} ne "sparc64") {
+	if($ENV{'GOLANG_SYS_BUILD'} ne "docker") {
+		print STDERR "In the new build system, mksyscall should not be called directly.\n";
+		print STDERR "See README.md\n";
+		exit 1;
+	}
+}
+
+
+sub parseparamlist($) {
+	my ($list) = @_;
+	$list =~ s/^\s*//;
+	$list =~ s/\s*$//;
+	if($list eq "") {
+		return ();
+	}
+	return split(/\s*,\s*/, $list);
+}
+
+sub parseparam($) {
+	my ($p) = @_;
+	if($p !~ /^(\S*) (\S*)$/) {
+		print STDERR "$ARGV:$.: malformed parameter: $p\n";
+		$errors = 1;
+		return ("xx", "int");
+	}
+	return ($1, $2);
+}
+
+my $text = "";
+while(<>) {
+	chomp;
+	s/\s+/ /g;
+	s/^\s+//;
+	s/\s+$//;
+	my $nonblock = /^\/\/sysnb /;
+	next if !/^\/\/sys / && !$nonblock;
+
+	# Line must be of the form
+	#	func Open(path string, mode int, perm int) (fd int, errno error)
+	# Split into name, in params, out params.
+	if(!/^\/\/sys(nb)? (\w+)\(([^()]*)\)\s*(?:\(([^()]+)\))?\s*(?:=\s*((?i)SYS_[A-Z0-9_]+))?$/) {
+		print STDERR "$ARGV:$.: malformed //sys declaration\n";
+		$errors = 1;
+		next;
+	}
+	my ($func, $in, $out, $sysname) = ($2, $3, $4, $5);
+
+	# Split argument lists on comma.
+	my @in = parseparamlist($in);
+	my @out = parseparamlist($out);
+
+	# Try in vain to keep people from editing this file.
+	# The theory is that they jump into the middle of the file
+	# without reading the header.
+	$text .= "// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT\n\n";
+
+	# Go function header.
+	my $out_decl = @out ? sprintf(" (%s)", join(', ', @out)) : "";
+	$text .= sprintf "func %s(%s)%s {\n", $func, join(', ', @in), $out_decl;
+
+	# Check if err return available
+	my $errvar = "";
+	foreach my $p (@out) {
+		my ($name, $type) = parseparam($p);
+		if($type eq "error") {
+			$errvar = $name;
+			last;
+		}
+	}
+
+	# Prepare arguments to Syscall.
+	my @args = ();
+	my $n = 0;
+	foreach my $p (@in) {
+		my ($name, $type) = parseparam($p);
+		if($type =~ /^\*/) {
+			push @args, "uintptr(unsafe.Pointer($name))";
+		} elsif($type eq "string" && $errvar ne "") {
+			$text .= "\tvar _p$n *byte\n";
+			$text .= "\t_p$n, $errvar = BytePtrFromString($name)\n";
+			$text .= "\tif $errvar != nil {\n\t\treturn\n\t}\n";
+			push @args, "uintptr(unsafe.Pointer(_p$n))";
+			$n++;
+		} elsif($type eq "string") {
+			print STDERR "$ARGV:$.: $func uses string arguments, but has no error return\n";
+			$text .= "\tvar _p$n *byte\n";
+			$text .= "\t_p$n, _ = BytePtrFromString($name)\n";
+			push @args, "uintptr(unsafe.Pointer(_p$n))";
+			$n++;
+		} elsif($type =~ /^\[\](.*)/) {
+			# Convert slice into pointer, length.
+			# Have to be careful not to take address of &a[0] if len == 0:
+			# pass dummy pointer in that case.
+			# Used to pass nil, but some OSes or simulators reject write(fd, nil, 0).
+			$text .= "\tvar _p$n unsafe.Pointer\n";
+			$text .= "\tif len($name) > 0 {\n\t\t_p$n = unsafe.Pointer(\&${name}[0])\n\t}";
+			$text .= " else {\n\t\t_p$n = unsafe.Pointer(&_zero)\n\t}";
+			$text .= "\n";
+			push @args, "uintptr(_p$n)", "uintptr(len($name))";
+			$n++;
+		} elsif($type eq "int64" && ($openbsd || $netbsd)) {
+			push @args, "0";
+			if($_32bit eq "big-endian") {
+				push @args, "uintptr($name>>32)", "uintptr($name)";
+			} elsif($_32bit eq "little-endian") {
+				push @args, "uintptr($name)", "uintptr($name>>32)";
+			} else {
+				push @args, "uintptr($name)";
+			}
+		} elsif($type eq "int64" && $dragonfly) {
+			if ($func !~ /^extp(read|write)/i) {
+				push @args, "0";
+			}
+			if($_32bit eq "big-endian") {
+				push @args, "uintptr($name>>32)", "uintptr($name)";
+			} elsif($_32bit eq "little-endian") {
+				push @args, "uintptr($name)", "uintptr($name>>32)";
+			} else {
+				push @args, "uintptr($name)";
+			}
+		} elsif($type eq "int64" && $_32bit ne "") {
+			if(@args % 2 && $arm) {
+				# arm abi specifies 64-bit argument uses
+				# (even, odd) pair
+				push @args, "0"
+			}
+			if($_32bit eq "big-endian") {
+				push @args, "uintptr($name>>32)", "uintptr($name)";
+			} else {
+				push @args, "uintptr($name)", "uintptr($name>>32)";
+			}
+		} else {
+			push @args, "uintptr($name)";
+		}
+	}
+
+	# Determine which form to use; pad args with zeros.
+	my $asm = "Syscall";
+	if ($nonblock) {
+		if ($errvar eq "" && $ENV{'GOOS'} eq "linux") {
+			$asm = "RawSyscallNoError";
+		} else {
+			$asm = "RawSyscall";
+		}
+	} else {
+		if ($errvar eq "" && $ENV{'GOOS'} eq "linux") {
+			$asm = "SyscallNoError";
+		}
+	}
+	if(@args <= 3) {
+		while(@args < 3) {
+			push @args, "0";
+		}
+	} elsif(@args <= 6) {
+		$asm .= "6";
+		while(@args < 6) {
+			push @args, "0";
+		}
+	} elsif(@args <= 9) {
+		$asm .= "9";
+		while(@args < 9) {
+			push @args, "0";
+		}
+	} else {
+		print STDERR "$ARGV:$.: too many arguments to system call\n";
+	}
+
+	# System call number.
+	if($sysname eq "") {
+		$sysname = "SYS_$func";
+		$sysname =~ s/([a-z])([A-Z])/${1}_$2/g;	# turn FooBar into Foo_Bar
+		$sysname =~ y/a-z/A-Z/;
+	}
+
+	# Actual call.
+	my $args = join(', ', @args);
+	my $call = "$asm($sysname, $args)";
+
+	# Assign return values.
+	my $body = "";
+	my @ret = ("_", "_", "_");
+	my $do_errno = 0;
+	for(my $i=0; $i<@out; $i++) {
+		my $p = $out[$i];
+		my ($name, $type) = parseparam($p);
+		my $reg = "";
+		if($name eq "err" && !$plan9) {
+			$reg = "e1";
+			$ret[2] = $reg;
+			$do_errno = 1;
+		} elsif($name eq "err" && $plan9) {
+			$ret[0] = "r0";
+			$ret[2] = "e1";
+			next;
+		} else {
+			$reg = sprintf("r%d", $i);
+			$ret[$i] = $reg;
+		}
+		if($type eq "bool") {
+			$reg = "$reg != 0";
+		}
+		if($type eq "int64" && $_32bit ne "") {
+			# 64-bit number in r1:r0 or r0:r1.
+			if($i+2 > @out) {
+				print STDERR "$ARGV:$.: not enough registers for int64 return\n";
+			}
+			if($_32bit eq "big-endian") {
+				$reg = sprintf("int64(r%d)<<32 | int64(r%d)", $i, $i+1);
+			} else {
+				$reg = sprintf("int64(r%d)<<32 | int64(r%d)", $i+1, $i);
+			}
+			$ret[$i] = sprintf("r%d", $i);
+			$ret[$i+1] = sprintf("r%d", $i+1);
+		}
+		if($reg ne "e1" || $plan9) {
+			$body .= "\t$name = $type($reg)\n";
+		}
+	}
+	if ($ret[0] eq "_" && $ret[1] eq "_" && $ret[2] eq "_") {
+		$text .= "\t$call\n";
+	} else {
+		if ($errvar eq "" && $ENV{'GOOS'} eq "linux") {
+			# raw syscall without error on Linux, see golang.org/issue/22924
+			$text .= "\t$ret[0], $ret[1] := $call\n";
+		} else {
+			$text .= "\t$ret[0], $ret[1], $ret[2] := $call\n";
+		}
+	}
+	$text .= $body;
+
+	if ($plan9 && $ret[2] eq "e1") {
+		$text .= "\tif int32(r0) == -1 {\n";
+		$text .= "\t\terr = e1\n";
+		$text .= "\t}\n";
+	} elsif ($do_errno) {
+		$text .= "\tif e1 != 0 {\n";
+		$text .= "\t\terr = errnoErr(e1)\n";
+		$text .= "\t}\n";
+	}
+	$text .= "\treturn\n";
+	$text .= "}\n\n";
+}
+
+chomp $text;
+chomp $text;
+
+if($errors) {
+	exit 1;
+}
+
+print <<EOF;
+// $cmdline
+// Code generated by the command above; see README.md. DO NOT EDIT.
+
+// +build $tags
+
+package unix
+
+import (
+	"syscall"
+	"unsafe"
+)
+
+var _ syscall.Errno
+
+$text
+EOF
+exit 0;

vendor/golang.org/x/sys/unix/mksyscall_aix.pl

@@ -0,0 +1,385 @@
+#!/usr/bin/env perl
+# Copyright 2018 The Go Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+# This program reads a file containing function prototypes
+# (like syscall_aix.go) and generates system call bodies.
+# The prototypes are marked by lines beginning with "//sys"
+# and read like func declarations if //sys is replaced by func, but:
+#	* The parameter lists must give a name for each argument.
+#	  This includes return parameters.
+#	* The parameter lists must give a type for each argument:
+#	  the (x, y, z int) shorthand is not allowed.
+#	* If the return parameter is an error number, it must be named err.
+#	* If go func name needs to be different than its libc name,
+#	* or the function is not in libc, name could be specified
+#	* at the end, after "=" sign, like
+#	  //sys getsockopt(s int, level int, name int, val uintptr, vallen *_Socklen) (err error) = libsocket.getsockopt
+
+use strict;
+
+my $cmdline = "mksyscall_aix.pl " . join(' ', @ARGV);
+my $errors = 0;
+my $_32bit = "";
+my $tags = "";  # build tags
+my $aix = 0;
+my $solaris = 0;
+
+binmode STDOUT;
+
+if($ARGV[0] eq "-b32") {
+	$_32bit = "big-endian";
+	shift;
+} elsif($ARGV[0] eq "-l32") {
+	$_32bit = "little-endian";
+	shift;
+}
+if($ARGV[0] eq "-aix") {
+	$aix = 1;
+	shift;
+}
+if($ARGV[0] eq "-tags") {
+	shift;
+	$tags = $ARGV[0];
+	shift;
+}
+
+if($ARGV[0] =~ /^-/) {
+	print STDERR "usage: mksyscall_aix.pl [-b32 | -l32] [-tags x,y] [file ...]\n";
+	exit 1;
+}
+
+sub parseparamlist($) {
+	my ($list) = @_;
+	$list =~ s/^\s*//;
+	$list =~ s/\s*$//;
+	if($list eq "") {
+		return ();
+	}
+	return split(/\s*,\s*/, $list);
+}
+
+sub parseparam($) {
+	my ($p) = @_;
+	if($p !~ /^(\S*) (\S*)$/) {
+		print STDERR "$ARGV:$.: malformed parameter: $p\n";
+		$errors = 1;
+		return ("xx", "int");
+	}
+	return ($1, $2);
+}
+
+my $package = "";
+my $text = "";
+my $c_extern = "/*\n#include <stdint.h>\n";
+my @vars = ();
+while(<>) {
+	chomp;
+	s/\s+/ /g;
+	s/^\s+//;
+	s/\s+$//;
+	$package = $1 if !$package && /^package (\S+)$/;
+	my $nonblock = /^\/\/sysnb /;
+	next if !/^\/\/sys / && !$nonblock;
+
+	# Line must be of the form
+	# func Open(path string, mode int, perm int) (fd int, err error)
+	# Split into name, in params, out params.
+	if(!/^\/\/sys(nb)? (\w+)\(([^()]*)\)\s*(?:\(([^()]+)\))?\s*(?:=\s*(?:(\w*)\.)?(\w*))?$/) {
+		print STDERR "$ARGV:$.: malformed //sys declaration\n";
+		$errors = 1;
+		next;
+	}
+	my ($nb, $func, $in, $out, $modname, $sysname) = ($1, $2, $3, $4, $5, $6);
+
+	# Split argument lists on comma.
+	my @in = parseparamlist($in);
+	my @out = parseparamlist($out);
+
+	$in = join(', ', @in);
+	$out = join(', ', @out);
+
+	# Try in vain to keep people from editing this file.
+	# The theory is that they jump into the middle of the file
+	# without reading the header.
+	$text .= "// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT\n\n";
+
+	# Check if value return, err return available
+	my $errvar = "";
+	my $retvar = "";
+	my $rettype = "";
+	foreach my $p (@out) {
+		my ($name, $type) = parseparam($p);
+		if($type eq "error") {
+			$errvar = $name;
+		} else {
+			$retvar = $name;
+			$rettype = $type;
+		}
+	}
+
+	# System call name.
+	#if($func ne "fcntl") {
+
+	if($sysname eq "") {
+		$sysname = "$func";
+	}
+
+	$sysname =~ s/([a-z])([A-Z])/${1}_$2/g;
+	$sysname =~ y/A-Z/a-z/; # All libc functions are lowercase.
+
+	my $C_rettype = "";
+	if($rettype eq "unsafe.Pointer") {
+		$C_rettype = "uintptr_t";
+	} elsif($rettype eq "uintptr") {
+		$C_rettype = "uintptr_t";
+	} elsif($rettype =~ /^_/) {
+		$C_rettype = "uintptr_t";
+	} elsif($rettype eq "int") {
+		$C_rettype = "int";
+	} elsif($rettype eq "int32") {
+		$C_rettype = "int";
+	} elsif($rettype eq "int64") {
+		$C_rettype = "long long";
+	} elsif($rettype eq "uint32") {
+		$C_rettype = "unsigned int";
+	} elsif($rettype eq "uint64") {
+		$C_rettype = "unsigned long long";
+	} else {
+		$C_rettype = "int";
+	}
+	if($sysname eq "exit") {
+		$C_rettype = "void";
+	}
+
+	# Change types to c
+	my @c_in = ();
+	foreach my $p (@in) {
+		my ($name, $type) = parseparam($p);
+		if($type =~ /^\*/) {
+			push @c_in, "uintptr_t";
+			} elsif($type eq "string") {
+			push @c_in, "uintptr_t";
+		} elsif($type =~ /^\[\](.*)/) {
+			push @c_in, "uintptr_t", "size_t";
+		} elsif($type eq "unsafe.Pointer") {
+			push @c_in, "uintptr_t";
+		} elsif($type eq "uintptr") {
+			push @c_in, "uintptr_t";
+		} elsif($type =~ /^_/) {
+			push @c_in, "uintptr_t";
+		} elsif($type eq "int") {
+			push @c_in, "int";
+		} elsif($type eq "int32") {
+			push @c_in, "int";
+		} elsif($type eq "int64") {
+			push @c_in, "long long";
+		} elsif($type eq "uint32") {
+			push @c_in, "unsigned int";
+		} elsif($type eq "uint64") {
+			push @c_in, "unsigned long long";
+		} else {
+			push @c_in, "int";
+		}
+	}
+
+	if ($func ne "fcntl" && $func ne "FcntlInt" && $func ne "readlen" && $func ne "writelen") {
+		# Imports of system calls from libc
+		$c_extern .= "$C_rettype $sysname";
+		my $c_in = join(', ', @c_in);
+		$c_extern .= "($c_in);\n";
+	}
+
+	# So file name.
+	if($aix) {
+		if($modname eq "") {
+			$modname = "libc.a/shr_64.o";
+		} else {
+			print STDERR "$func: only syscall using libc are available\n";
+			$errors = 1;
+			next;
+		}
+	}
+
+	my $strconvfunc = "C.CString";
+	my $strconvtype = "*byte";
+
+	# Go function header.
+	if($out ne "") {
+		$out = " ($out)";
+	}
+	if($text ne "") {
+		$text .= "\n"
+	}
+
+	$text .= sprintf "func %s(%s)%s {\n", $func, join(', ', @in), $out ;
+
+	# Prepare arguments to call.
+	my @args = ();
+	my $n = 0;
+	my $arg_n = 0;
+	foreach my $p (@in) {
+		my ($name, $type) = parseparam($p);
+		if($type =~ /^\*/) {
+			push @args, "C.uintptr_t(uintptr(unsafe.Pointer($name)))";
+		} elsif($type eq "string" && $errvar ne "") {
+			$text .= "\t_p$n := uintptr(unsafe.Pointer($strconvfunc($name)))\n";
+			push @args, "C.uintptr_t(_p$n)";
+			$n++;
+		} elsif($type eq "string") {
+			print STDERR "$ARGV:$.: $func uses string arguments, but has no error return\n";
+			$text .= "\t_p$n := uintptr(unsafe.Pointer($strconvfunc($name)))\n";
+			push @args, "C.uintptr_t(_p$n)";
+			$n++;
+		} elsif($type =~ /^\[\](.*)/) {
+			# Convert slice into pointer, length.
+			# Have to be careful not to take address of &a[0] if len == 0:
+			# pass nil in that case.
+			$text .= "\tvar _p$n *$1\n";
+			$text .= "\tif len($name) > 0 {\n\t\t_p$n = \&$name\[0]\n\t}\n";
+			push @args, "C.uintptr_t(uintptr(unsafe.Pointer(_p$n)))";
+			$n++;
+			$text .= "\tvar _p$n int\n";
+			$text .= "\t_p$n = len($name)\n";
+			push @args, "C.size_t(_p$n)";
+			$n++;
+		} elsif($type eq "int64" && $_32bit ne "") {
+			if($_32bit eq "big-endian") {
+				push @args, "uintptr($name >> 32)", "uintptr($name)";
+			} else {
+				push @args, "uintptr($name)", "uintptr($name >> 32)";
+			}
+			$n++;
+		} elsif($type eq "bool") {
+			$text .= "\tvar _p$n uint32\n";
+			$text .= "\tif $name {\n\t\t_p$n = 1\n\t} else {\n\t\t_p$n = 0\n\t}\n";
+			push @args, "_p$n";
+			$n++;
+		} elsif($type =~ /^_/) {
+			push @args, "C.uintptr_t(uintptr($name))";
+		} elsif($type eq "unsafe.Pointer") {
+			push @args, "C.uintptr_t(uintptr($name))";
+		} elsif($type eq "int") {
+			if (($arg_n == 2) && (($func eq "readlen") || ($func eq "writelen"))) {
+				push @args, "C.size_t($name)";
+			} elsif ($arg_n == 0 && $func eq "fcntl") {
+				push @args, "C.uintptr_t($name)";
+			} elsif (($arg_n == 2) && (($func eq "fcntl") || ($func eq "FcntlInt"))) {
+				push @args, "C.uintptr_t($name)";
+			} else {
+				push @args, "C.int($name)";
+			}
+		} elsif($type eq "int32") {
+			push @args, "C.int($name)";
+		} elsif($type eq "int64") {
+			push @args, "C.longlong($name)";
+		} elsif($type eq "uint32") {
+			push @args, "C.uint($name)";
+		} elsif($type eq "uint64") {
+			push @args, "C.ulonglong($name)";
+		} elsif($type eq "uintptr") {
+			push @args, "C.uintptr_t($name)";
+		} else {
+			push @args, "C.int($name)";
+		}
+		$arg_n++;
+	}
+	my $nargs = @args;
+
+
+	# Determine which form to use; pad args with zeros.
+	if ($nonblock) {
+	}
+
+	my $args = join(', ', @args);
+	my $call = "";
+	if ($sysname eq "exit") {
+		if ($errvar ne "") {
+			$call .= "er :=";
+		} else {
+			$call .= "";
+		}
+	}  elsif ($errvar ne "") {
+		$call .= "r0,er :=";
+	}  elsif ($retvar ne "") {
+		$call .= "r0,_ :=";
+	}  else {
+		$call .= ""
+	}
+	$call .= "C.$sysname($args)";
+
+	# Assign return values.
+	my $body = "";
+	my $failexpr = "";
+
+	for(my $i=0; $i<@out; $i++) {
+		my $p = $out[$i];
+		my ($name, $type) = parseparam($p);
+		my $reg = "";
+		if($name eq "err") {
+			$reg = "e1";
+		} else {
+			$reg = "r0";
+		}
+		if($reg ne "e1" ) {
+						$body .= "\t$name = $type($reg)\n";
+		}
+	}
+
+	# verify return
+	if ($sysname ne "exit" && $errvar ne "") {
+		if ($C_rettype =~ /^uintptr/) {
+			$body .= "\tif \(uintptr\(r0\) ==\^uintptr\(0\) && er != nil\) {\n";
+			$body .= "\t\t$errvar = er\n";
+			$body .= "\t}\n";
+		} else {
+			$body .= "\tif \(r0 ==-1 && er != nil\) {\n";
+			$body .= "\t\t$errvar = er\n";
+			$body .= "\t}\n";
+		}
+	} elsif ($errvar ne "") {
+		$body .= "\tif \(er != nil\) {\n";
+		$body .= "\t\t$errvar = er\n";
+		$body .= "\t}\n";
+	}
+
+	$text .= "\t$call\n";
+	$text .= $body;
+
+	$text .= "\treturn\n";
+	$text .= "}\n";
+}
+
+if($errors) {
+	exit 1;
+}
+
+print <<EOF;
+// $cmdline
+// Code generated by the command above; see README.md. DO NOT EDIT.
+
+// +build $tags
+
+package $package
+
+
+$c_extern
+*/
+import "C"
+import (
+	"unsafe"
+	"syscall"
+)
+
+
+EOF
+
+print "import \"golang.org/x/sys/unix\"\n" if $package ne "unix";
+
+chomp($_=<<EOF);
+
+$text
+EOF
+print $_;
+exit 0;

vendor/golang.org/x/sys/unix/mksyscall_solaris.pl

@@ -0,0 +1,289 @@
+#!/usr/bin/env perl
+# Copyright 2009 The Go Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+# This program reads a file containing function prototypes
+# (like syscall_solaris.go) and generates system call bodies.
+# The prototypes are marked by lines beginning with "//sys"
+# and read like func declarations if //sys is replaced by func, but:
+#	* The parameter lists must give a name for each argument.
+#	  This includes return parameters.
+#	* The parameter lists must give a type for each argument:
+#	  the (x, y, z int) shorthand is not allowed.
+#	* If the return parameter is an error number, it must be named err.
+#	* If go func name needs to be different than its libc name,
+#	* or the function is not in libc, name could be specified
+#	* at the end, after "=" sign, like
+#	  //sys getsockopt(s int, level int, name int, val uintptr, vallen *_Socklen) (err error) = libsocket.getsockopt
+
+use strict;
+
+my $cmdline = "mksyscall_solaris.pl " . join(' ', @ARGV);
+my $errors = 0;
+my $_32bit = "";
+my $tags = "";  # build tags
+
+binmode STDOUT;
+
+if($ARGV[0] eq "-b32") {
+	$_32bit = "big-endian";
+	shift;
+} elsif($ARGV[0] eq "-l32") {
+	$_32bit = "little-endian";
+	shift;
+}
+if($ARGV[0] eq "-tags") {
+	shift;
+	$tags = $ARGV[0];
+	shift;
+}
+
+if($ARGV[0] =~ /^-/) {
+	print STDERR "usage: mksyscall_solaris.pl [-b32 | -l32] [-tags x,y] [file ...]\n";
+	exit 1;
+}
+
+sub parseparamlist($) {
+	my ($list) = @_;
+	$list =~ s/^\s*//;
+	$list =~ s/\s*$//;
+	if($list eq "") {
+		return ();
+	}
+	return split(/\s*,\s*/, $list);
+}
+
+sub parseparam($) {
+	my ($p) = @_;
+	if($p !~ /^(\S*) (\S*)$/) {
+		print STDERR "$ARGV:$.: malformed parameter: $p\n";
+		$errors = 1;
+		return ("xx", "int");
+	}
+	return ($1, $2);
+}
+
+my $package = "";
+my $text = "";
+my $dynimports = "";
+my $linknames = "";
+my @vars = ();
+while(<>) {
+	chomp;
+	s/\s+/ /g;
+	s/^\s+//;
+	s/\s+$//;
+	$package = $1 if !$package && /^package (\S+)$/;
+	my $nonblock = /^\/\/sysnb /;
+	next if !/^\/\/sys / && !$nonblock;
+
+	# Line must be of the form
+	#	func Open(path string, mode int, perm int) (fd int, err error)
+	# Split into name, in params, out params.
+	if(!/^\/\/sys(nb)? (\w+)\(([^()]*)\)\s*(?:\(([^()]+)\))?\s*(?:=\s*(?:(\w*)\.)?(\w*))?$/) {
+		print STDERR "$ARGV:$.: malformed //sys declaration\n";
+		$errors = 1;
+		next;
+	}
+	my ($nb, $func, $in, $out, $modname, $sysname) = ($1, $2, $3, $4, $5, $6);
+
+	# Split argument lists on comma.
+	my @in = parseparamlist($in);
+	my @out = parseparamlist($out);
+
+	# So file name.
+	if($modname eq "") {
+		$modname = "libc";
+	}
+
+	# System call name.
+	if($sysname eq "") {
+		$sysname = "$func";
+	}
+
+	# System call pointer variable name.
+	my $sysvarname = "proc$sysname";
+
+	my $strconvfunc = "BytePtrFromString";
+	my $strconvtype = "*byte";
+
+	$sysname =~ y/A-Z/a-z/; # All libc functions are lowercase.
+
+	# Runtime import of function to allow cross-platform builds.
+	$dynimports .= "//go:cgo_import_dynamic libc_${sysname} ${sysname} \"$modname.so\"\n";
+	# Link symbol to proc address variable.
+	$linknames .= "//go:linkname ${sysvarname} libc_${sysname}\n";
+	# Library proc address variable.
+	push @vars, $sysvarname;
+
+	# Go function header.
+	$out = join(', ', @out);
+	if($out ne "") {
+		$out = " ($out)";
+	}
+	if($text ne "") {
+		$text .= "\n"
+	}
+	$text .= sprintf "func %s(%s)%s {\n", $func, join(', ', @in), $out;
+
+	# Check if err return available
+	my $errvar = "";
+	foreach my $p (@out) {
+		my ($name, $type) = parseparam($p);
+		if($type eq "error") {
+			$errvar = $name;
+			last;
+		}
+	}
+
+	# Prepare arguments to Syscall.
+	my @args = ();
+	my $n = 0;
+	foreach my $p (@in) {
+		my ($name, $type) = parseparam($p);
+		if($type =~ /^\*/) {
+			push @args, "uintptr(unsafe.Pointer($name))";
+		} elsif($type eq "string" && $errvar ne "") {
+			$text .= "\tvar _p$n $strconvtype\n";
+			$text .= "\t_p$n, $errvar = $strconvfunc($name)\n";
+			$text .= "\tif $errvar != nil {\n\t\treturn\n\t}\n";
+			push @args, "uintptr(unsafe.Pointer(_p$n))";
+			$n++;
+		} elsif($type eq "string") {
+			print STDERR "$ARGV:$.: $func uses string arguments, but has no error return\n";
+			$text .= "\tvar _p$n $strconvtype\n";
+			$text .= "\t_p$n, _ = $strconvfunc($name)\n";
+			push @args, "uintptr(unsafe.Pointer(_p$n))";
+			$n++;
+		} elsif($type =~ /^\[\](.*)/) {
+			# Convert slice into pointer, length.
+			# Have to be careful not to take address of &a[0] if len == 0:
+			# pass nil in that case.
+			$text .= "\tvar _p$n *$1\n";
+			$text .= "\tif len($name) > 0 {\n\t\t_p$n = \&$name\[0]\n\t}\n";
+			push @args, "uintptr(unsafe.Pointer(_p$n))", "uintptr(len($name))";
+			$n++;
+		} elsif($type eq "int64" && $_32bit ne "") {
+			if($_32bit eq "big-endian") {
+				push @args, "uintptr($name >> 32)", "uintptr($name)";
+			} else {
+				push @args, "uintptr($name)", "uintptr($name >> 32)";
+			}
+		} elsif($type eq "bool") {
+ 			$text .= "\tvar _p$n uint32\n";
+			$text .= "\tif $name {\n\t\t_p$n = 1\n\t} else {\n\t\t_p$n = 0\n\t}\n";
+			push @args, "uintptr(_p$n)";
+			$n++;
+		} else {
+			push @args, "uintptr($name)";
+		}
+	}
+	my $nargs = @args;
+
+	# Determine which form to use; pad args with zeros.
+	my $asm = "sysvicall6";
+	if ($nonblock) {
+		$asm = "rawSysvicall6";
+	}
+	if(@args <= 6) {
+		while(@args < 6) {
+			push @args, "0";
+		}
+	} else {
+		print STDERR "$ARGV:$.: too many arguments to system call\n";
+	}
+
+	# Actual call.
+	my $args = join(', ', @args);
+	my $call = "$asm(uintptr(unsafe.Pointer(&$sysvarname)), $nargs, $args)";
+
+	# Assign return values.
+	my $body = "";
+	my $failexpr = "";
+	my @ret = ("_", "_", "_");
+	my @pout= ();
+	my $do_errno = 0;
+	for(my $i=0; $i<@out; $i++) {
+		my $p = $out[$i];
+		my ($name, $type) = parseparam($p);
+		my $reg = "";
+		if($name eq "err") {
+			$reg = "e1";
+			$ret[2] = $reg;
+			$do_errno = 1;
+		} else {
+			$reg = sprintf("r%d", $i);
+			$ret[$i] = $reg;
+		}
+		if($type eq "bool") {
+			$reg = "$reg != 0";
+		}
+		if($type eq "int64" && $_32bit ne "") {
+			# 64-bit number in r1:r0 or r0:r1.
+			if($i+2 > @out) {
+				print STDERR "$ARGV:$.: not enough registers for int64 return\n";
+			}
+			if($_32bit eq "big-endian") {
+				$reg = sprintf("int64(r%d)<<32 | int64(r%d)", $i, $i+1);
+			} else {
+				$reg = sprintf("int64(r%d)<<32 | int64(r%d)", $i+1, $i);
+			}
+			$ret[$i] = sprintf("r%d", $i);
+			$ret[$i+1] = sprintf("r%d", $i+1);
+		}
+		if($reg ne "e1") {
+			$body .= "\t$name = $type($reg)\n";
+		}
+	}
+	if ($ret[0] eq "_" && $ret[1] eq "_" && $ret[2] eq "_") {
+		$text .= "\t$call\n";
+	} else {
+		$text .= "\t$ret[0], $ret[1], $ret[2] := $call\n";
+	}
+	$text .= $body;
+
+	if ($do_errno) {
+		$text .= "\tif e1 != 0 {\n";
+		$text .= "\t\terr = e1\n";
+		$text .= "\t}\n";
+	}
+	$text .= "\treturn\n";
+	$text .= "}\n";
+}
+
+if($errors) {
+	exit 1;
+}
+
+print <<EOF;
+// $cmdline
+// Code generated by the command above; see README.md. DO NOT EDIT.
+
+// +build $tags
+
+package $package
+
+import (
+	"syscall"
+	"unsafe"
+)
+EOF
+
+print "import \"golang.org/x/sys/unix\"\n" if $package ne "unix";
+
+my $vardecls = "\t" . join(",\n\t", @vars);
+$vardecls .= " syscallFunc";
+
+chomp($_=<<EOF);
+
+$dynimports
+$linknames
+var (
+$vardecls
+)
+
+$text
+EOF
+print $_;
+exit 0;

vendor/golang.org/x/sys/unix/mksysctl_openbsd.pl

@@ -0,0 +1,264 @@
+#!/usr/bin/env perl
+
+# Copyright 2011 The Go Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+#
+# Parse the header files for OpenBSD and generate a Go usable sysctl MIB.
+#
+# Build a MIB with each entry being an array containing the level, type and
+# a hash that will contain additional entries if the current entry is a node.
+# We then walk this MIB and create a flattened sysctl name to OID hash.
+#
+
+use strict;
+
+if($ENV{'GOARCH'} eq "" || $ENV{'GOOS'} eq "") {
+	print STDERR "GOARCH or GOOS not defined in environment\n";
+	exit 1;
+}
+
+my $debug = 0;
+my %ctls = ();
+
+my @headers = qw (
+	sys/sysctl.h
+	sys/socket.h
+	sys/tty.h
+	sys/malloc.h
+	sys/mount.h
+	sys/namei.h
+	sys/sem.h
+	sys/shm.h
+	sys/vmmeter.h
+	uvm/uvm_param.h
+	uvm/uvm_swap_encrypt.h
+	ddb/db_var.h
+	net/if.h
+	net/if_pfsync.h
+	net/pipex.h
+	netinet/in.h
+	netinet/icmp_var.h
+	netinet/igmp_var.h
+	netinet/ip_ah.h
+	netinet/ip_carp.h
+	netinet/ip_divert.h
+	netinet/ip_esp.h
+	netinet/ip_ether.h
+	netinet/ip_gre.h
+	netinet/ip_ipcomp.h
+	netinet/ip_ipip.h
+	netinet/pim_var.h
+	netinet/tcp_var.h
+	netinet/udp_var.h
+	netinet6/in6.h
+	netinet6/ip6_divert.h
+	netinet6/pim6_var.h
+	netinet/icmp6.h
+	netmpls/mpls.h
+);
+
+my @ctls = qw (
+	kern
+	vm
+	fs
+	net
+	#debug				# Special handling required
+	hw
+	#machdep			# Arch specific
+	user
+	ddb
+	#vfs				# Special handling required
+	fs.posix
+	kern.forkstat
+	kern.intrcnt
+	kern.malloc
+	kern.nchstats
+	kern.seminfo
+	kern.shminfo
+	kern.timecounter
+	kern.tty
+	kern.watchdog
+	net.bpf
+	net.ifq
+	net.inet
+	net.inet.ah
+	net.inet.carp
+	net.inet.divert
+	net.inet.esp
+	net.inet.etherip
+	net.inet.gre
+	net.inet.icmp
+	net.inet.igmp
+	net.inet.ip
+	net.inet.ip.ifq
+	net.inet.ipcomp
+	net.inet.ipip
+	net.inet.mobileip
+	net.inet.pfsync
+	net.inet.pim
+	net.inet.tcp
+	net.inet.udp
+	net.inet6
+	net.inet6.divert
+	net.inet6.ip6
+	net.inet6.icmp6
+	net.inet6.pim6
+	net.inet6.tcp6
+	net.inet6.udp6
+	net.mpls
+	net.mpls.ifq
+	net.key
+	net.pflow
+	net.pfsync
+	net.pipex
+	net.rt
+	vm.swapencrypt
+	#vfsgenctl			# Special handling required
+);
+
+# Node name "fixups"
+my %ctl_map = (
+	"ipproto" => "net.inet",
+	"net.inet.ipproto" => "net.inet",
+	"net.inet6.ipv6proto" => "net.inet6",
+	"net.inet6.ipv6" => "net.inet6.ip6",
+	"net.inet.icmpv6" => "net.inet6.icmp6",
+	"net.inet6.divert6" => "net.inet6.divert",
+	"net.inet6.tcp6" => "net.inet.tcp",
+	"net.inet6.udp6" => "net.inet.udp",
+	"mpls" => "net.mpls",
+	"swpenc" => "vm.swapencrypt"
+);
+
+# Node mappings
+my %node_map = (
+	"net.inet.ip.ifq" => "net.ifq",
+	"net.inet.pfsync" => "net.pfsync",
+	"net.mpls.ifq" => "net.ifq"
+);
+
+my $ctlname;
+my %mib = ();
+my %sysctl = ();
+my $node;
+
+sub debug() {
+	print STDERR "$_[0]\n" if $debug;
+}
+
+# Walk the MIB and build a sysctl name to OID mapping.
+sub build_sysctl() {
+	my ($node, $name, $oid) = @_;
+	my %node = %{$node};
+	my @oid = @{$oid};
+
+	foreach my $key (sort keys %node) {
+		my @node = @{$node{$key}};
+		my $nodename = $name.($name ne '' ? '.' : '').$key;
+		my @nodeoid = (@oid, $node[0]);
+		if ($node[1] eq 'CTLTYPE_NODE') {
+			if (exists $node_map{$nodename}) {
+				$node = \%mib;
+				$ctlname = $node_map{$nodename};
+				foreach my $part (split /\./, $ctlname) {
+					$node = \%{@{$$node{$part}}[2]};
+				}
+			} else {
+				$node = $node[2];
+			}
+			&build_sysctl($node, $nodename, \@nodeoid);
+		} elsif ($node[1] ne '') {
+			$sysctl{$nodename} = \@nodeoid;
+		}
+	}
+}
+
+foreach my $ctl (@ctls) {
+	$ctls{$ctl} = $ctl;
+}
+
+# Build MIB
+foreach my $header (@headers) {
+	&debug("Processing $header...");
+	open HEADER, "/usr/include/$header" ||
+	    print STDERR "Failed to open $header\n";
+	while (<HEADER>) {
+		if ($_ =~ /^#define\s+(CTL_NAMES)\s+{/ ||
+		    $_ =~ /^#define\s+(CTL_(.*)_NAMES)\s+{/ ||
+		    $_ =~ /^#define\s+((.*)CTL_NAMES)\s+{/) {
+			if ($1 eq 'CTL_NAMES') {
+				# Top level.
+				$node = \%mib;
+			} else {
+				# Node.
+				my $nodename = lc($2);
+				if ($header =~ /^netinet\//) {
+					$ctlname = "net.inet.$nodename";
+				} elsif ($header =~ /^netinet6\//) {
+					$ctlname = "net.inet6.$nodename";
+				} elsif ($header =~ /^net\//) {
+					$ctlname = "net.$nodename";
+				} else {
+					$ctlname = "$nodename";
+					$ctlname =~ s/^(fs|net|kern)_/$1\./;
+				}
+				if (exists $ctl_map{$ctlname}) {
+					$ctlname = $ctl_map{$ctlname};
+				}
+				if (not exists $ctls{$ctlname}) {
+					&debug("Ignoring $ctlname...");
+					next;
+				}
+
+				# Walk down from the top of the MIB.
+				$node = \%mib;
+				foreach my $part (split /\./, $ctlname) {
+					if (not exists $$node{$part}) {
+						&debug("Missing node $part");
+						$$node{$part} = [ 0, '', {} ];
+					}
+					$node = \%{@{$$node{$part}}[2]};
+				}
+			}
+
+			# Populate current node with entries.
+			my $i = -1;
+			while (defined($_) && $_ !~ /^}/) {
+				$_ = <HEADER>;
+				$i++ if $_ =~ /{.*}/;
+				next if $_ !~ /{\s+"(\w+)",\s+(CTLTYPE_[A-Z]+)\s+}/;
+				$$node{$1} = [ $i, $2, {} ];
+			}
+		}
+	}
+	close HEADER;
+}
+
+&build_sysctl(\%mib, "", []);
+
+print <<EOF;
+// mksysctl_openbsd.pl
+// Code generated by the command above; DO NOT EDIT.
+
+// +build $ENV{'GOARCH'},$ENV{'GOOS'}
+
+package unix;
+
+type mibentry struct {
+	ctlname string
+	ctloid []_C_int
+}
+
+var sysctlMib = []mibentry {
+EOF
+
+foreach my $name (sort keys %sysctl) {
+	my @oid = @{$sysctl{$name}};
+	print "\t{ \"$name\", []_C_int{ ", join(', ', @oid), " } }, \n";
+}
+
+print <<EOF;
+}
+EOF

vendor/golang.org/x/sys/unix/mksysnum_darwin.pl

@@ -0,0 +1,39 @@
+#!/usr/bin/env perl
+# Copyright 2009 The Go Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+#
+# Generate system call table for Darwin from sys/syscall.h
+
+use strict;
+
+if($ENV{'GOARCH'} eq "" || $ENV{'GOOS'} eq "") {
+	print STDERR "GOARCH or GOOS not defined in environment\n";
+	exit 1;
+}
+
+my $command = "mksysnum_darwin.pl " . join(' ', @ARGV);
+
+print <<EOF;
+// $command
+// Code generated by the command above; see README.md. DO NOT EDIT.
+
+// +build $ENV{'GOARCH'},$ENV{'GOOS'}
+
+package unix
+
+const (
+EOF
+
+while(<>){
+	if(/^#define\s+SYS_(\w+)\s+([0-9]+)/){
+		my $name = $1;
+		my $num = $2;
+		$name =~ y/a-z/A-Z/;
+		print "	SYS_$name = $num;"
+	}
+}
+
+print <<EOF;
+)
+EOF

vendor/golang.org/x/sys/unix/mksysnum_dragonfly.pl

@@ -0,0 +1,50 @@
+#!/usr/bin/env perl
+# Copyright 2009 The Go Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+#
+# Generate system call table for DragonFly from master list
+# (for example, /usr/src/sys/kern/syscalls.master).
+
+use strict;
+
+if($ENV{'GOARCH'} eq "" || $ENV{'GOOS'} eq "") {
+	print STDERR "GOARCH or GOOS not defined in environment\n";
+	exit 1;
+}
+
+my $command = "mksysnum_dragonfly.pl " . join(' ', @ARGV);
+
+print <<EOF;
+// $command
+// Code generated by the command above; see README.md. DO NOT EDIT.
+
+// +build $ENV{'GOARCH'},$ENV{'GOOS'}
+
+package unix
+
+const (
+EOF
+
+while(<>){
+	if(/^([0-9]+)\s+STD\s+({ \S+\s+(\w+).*)$/){
+		my $num = $1;
+		my $proto = $2;
+		my $name = "SYS_$3";
+		$name =~ y/a-z/A-Z/;
+
+		# There are multiple entries for enosys and nosys, so comment them out.
+		if($name =~ /^SYS_E?NOSYS$/){
+			$name = "// $name";
+		}
+		if($name eq 'SYS_SYS_EXIT'){
+			$name = 'SYS_EXIT';
+		}
+
+		print "	$name = $num;  // $proto\n";
+	}
+}
+
+print <<EOF;
+)
+EOF

vendor/golang.org/x/sys/unix/mksysnum_freebsd.pl

@@ -0,0 +1,50 @@
+#!/usr/bin/env perl
+# Copyright 2009 The Go Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+#
+# Generate system call table for FreeBSD from master list
+# (for example, /usr/src/sys/kern/syscalls.master).
+
+use strict;
+
+if($ENV{'GOARCH'} eq "" || $ENV{'GOOS'} eq "") {
+	print STDERR "GOARCH or GOOS not defined in environment\n";
+	exit 1;
+}
+
+my $command = "mksysnum_freebsd.pl " . join(' ', @ARGV);
+
+print <<EOF;
+// $command
+// Code generated by the command above; see README.md. DO NOT EDIT.
+
+// +build $ENV{'GOARCH'},$ENV{'GOOS'}
+
+package unix
+
+const (
+EOF
+
+while(<>){
+	if(/^([0-9]+)\s+\S+\s+(?:NO)?STD\s+({ \S+\s+(\w+).*)$/){
+		my $num = $1;
+		my $proto = $2;
+		my $name = "SYS_$3";
+		$name =~ y/a-z/A-Z/;
+
+		# There are multiple entries for enosys and nosys, so comment them out.
+		if($name =~ /^SYS_E?NOSYS$/){
+			$name = "// $name";
+		}
+		if($name eq 'SYS_SYS_EXIT'){
+			$name = 'SYS_EXIT';
+		}
+
+		print "	$name = $num;  // $proto\n";
+	}
+}
+
+print <<EOF;
+)
+EOF

vendor/golang.org/x/sys/unix/mksysnum_netbsd.pl

@@ -0,0 +1,58 @@
+#!/usr/bin/env perl
+# Copyright 2009 The Go Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+#
+# Generate system call table for OpenBSD from master list
+# (for example, /usr/src/sys/kern/syscalls.master).
+
+use strict;
+
+if($ENV{'GOARCH'} eq "" || $ENV{'GOOS'} eq "") {
+	print STDERR "GOARCH or GOOS not defined in environment\n";
+	exit 1;
+}
+
+my $command = "mksysnum_netbsd.pl " . join(' ', @ARGV);
+
+print <<EOF;
+// $command
+// Code generated by the command above; see README.md. DO NOT EDIT.
+
+// +build $ENV{'GOARCH'},$ENV{'GOOS'}
+
+package unix
+
+const (
+EOF
+
+my $line = '';
+while(<>){
+	if($line =~ /^(.*)\\$/) {
+		# Handle continuation
+		$line = $1;
+		$_ =~ s/^\s+//;
+		$line .= $_;
+	} else {
+		# New line
+		$line = $_;
+	}
+	next if $line =~ /\\$/;
+	if($line =~ /^([0-9]+)\s+((STD)|(NOERR))\s+(RUMP\s+)?({\s+\S+\s*\*?\s*\|(\S+)\|(\S*)\|(\w+).*\s+})(\s+(\S+))?$/) {
+		my $num = $1;
+		my $proto = $6;
+		my $compat = $8;
+		my $name = "$7_$9";
+
+		$name = "$7_$11" if $11 ne '';
+		$name =~ y/a-z/A-Z/;
+
+		if($compat eq '' || $compat eq '13' || $compat eq '30' || $compat eq '50') {
+			print "	$name = $num;  // $proto\n";
+		}
+	}
+}
+
+print <<EOF;
+)
+EOF

vendor/golang.org/x/sys/unix/mksysnum_openbsd.pl

@@ -0,0 +1,50 @@
+#!/usr/bin/env perl
+# Copyright 2009 The Go Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+#
+# Generate system call table for OpenBSD from master list
+# (for example, /usr/src/sys/kern/syscalls.master).
+
+use strict;
+
+if($ENV{'GOARCH'} eq "" || $ENV{'GOOS'} eq "") {
+	print STDERR "GOARCH or GOOS not defined in environment\n";
+	exit 1;
+}
+
+my $command = "mksysnum_openbsd.pl " . join(' ', @ARGV);
+
+print <<EOF;
+// $command
+// Code generated by the command above; see README.md. DO NOT EDIT.
+
+// +build $ENV{'GOARCH'},$ENV{'GOOS'}
+
+package unix
+
+const (
+EOF
+
+while(<>){
+	if(/^([0-9]+)\s+STD\s+(NOLOCK\s+)?({ \S+\s+\*?(\w+).*)$/){
+		my $num = $1;
+		my $proto = $3;
+		my $name = $4;
+		$name =~ y/a-z/A-Z/;
+
+		# There are multiple entries for enosys and nosys, so comment them out.
+		if($name =~ /^SYS_E?NOSYS$/){
+			$name = "// $name";
+		}
+		if($name eq 'SYS_SYS_EXIT'){
+			$name = 'SYS_EXIT';
+		}
+
+		print "	$name = $num;  // $proto\n";
+	}
+}
+
+print <<EOF;
+)
+EOF

vendor/golang.org/x/sys/unix/openbsd_pledge.go

@@ -0,0 +1,95 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build openbsd
+// +build 386 amd64 arm
+
+package unix
+
+import (
+	"errors"
+	"fmt"
+	"strconv"
+	"syscall"
+	"unsafe"
+)
+
+const (
+	_SYS_PLEDGE = 108
+)
+
+// Pledge implements the pledge syscall.
+//
+// The pledge syscall does not accept execpromises on OpenBSD releases
+// before 6.3.
+//
+// execpromises must be empty when Pledge is called on OpenBSD
+// releases predating 6.3, otherwise an error will be returned.
+//
+// For more information see pledge(2).
+func Pledge(promises, execpromises string) error {
+	maj, min, err := majmin()
+	if err != nil {
+		return err
+	}
+
+	// If OpenBSD <= 5.9, pledge is not available.
+	if (maj == 5 && min != 9) || maj < 5 {
+		return fmt.Errorf("pledge syscall is not available on OpenBSD %d.%d", maj, min)
+	}
+
+	// If OpenBSD <= 6.2 and execpromises is not empty
+	// return an error - execpromises is not available before 6.3
+	if (maj < 6 || (maj == 6 && min <= 2)) && execpromises != "" {
+		return fmt.Errorf("cannot use execpromises on OpenBSD %d.%d", maj, min)
+	}
+
+	pptr, err := syscall.BytePtrFromString(promises)
+	if err != nil {
+		return err
+	}
+
+	// This variable will hold either a nil unsafe.Pointer or
+	// an unsafe.Pointer to a string (execpromises).
+	var expr unsafe.Pointer
+
+	// If we're running on OpenBSD > 6.2, pass execpromises to the syscall.
+	if maj > 6 || (maj == 6 && min > 2) {
+		exptr, err := syscall.BytePtrFromString(execpromises)
+		if err != nil {
+			return err
+		}
+		expr = unsafe.Pointer(exptr)
+	}
+
+	_, _, e := syscall.Syscall(_SYS_PLEDGE, uintptr(unsafe.Pointer(pptr)), uintptr(expr), 0)
+	if e != 0 {
+		return e
+	}
+
+	return nil
+}
+
+// majmin returns major and minor version number for an OpenBSD system.
+func majmin() (major int, minor int, err error) {
+	var v Utsname
+	err = Uname(&v)
+	if err != nil {
+		return
+	}
+
+	major, err = strconv.Atoi(string(v.Release[0]))
+	if err != nil {
+		err = errors.New("cannot parse major version number returned by uname")
+		return
+	}
+
+	minor, err = strconv.Atoi(string(v.Release[2]))
+	if err != nil {
+		err = errors.New("cannot parse minor version number returned by uname")
+		return
+	}
+
+	return
+}

vendor/golang.org/x/sys/unix/pagesize_unix.go

@@ -0,0 +1,15 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
+
+// For Unix, get the pagesize from the runtime.
+
+package unix
+
+import "syscall"
+
+func Getpagesize() int {
+	return syscall.Getpagesize()
+}

vendor/golang.org/x/sys/unix/race.go

@@ -0,0 +1,30 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build darwin,race linux,race freebsd,race
+
+package unix
+
+import (
+	"runtime"
+	"unsafe"
+)
+
+const raceenabled = true
+
+func raceAcquire(addr unsafe.Pointer) {
+	runtime.RaceAcquire(addr)
+}
+
+func raceReleaseMerge(addr unsafe.Pointer) {
+	runtime.RaceReleaseMerge(addr)
+}
+
+func raceReadRange(addr unsafe.Pointer, len int) {
+	runtime.RaceReadRange(addr, len)
+}
+
+func raceWriteRange(addr unsafe.Pointer, len int) {
+	runtime.RaceWriteRange(addr, len)
+}

vendor/golang.org/x/sys/unix/race0.go

@@ -0,0 +1,25 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix darwin,!race linux,!race freebsd,!race netbsd openbsd solaris dragonfly
+
+package unix
+
+import (
+	"unsafe"
+)
+
+const raceenabled = false
+
+func raceAcquire(addr unsafe.Pointer) {
+}
+
+func raceReleaseMerge(addr unsafe.Pointer) {
+}
+
+func raceReadRange(addr unsafe.Pointer, len int) {
+}
+
+func raceWriteRange(addr unsafe.Pointer, len int) {
+}

vendor/golang.org/x/sys/unix/sockcmsg_linux.go

@@ -0,0 +1,36 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Socket control messages
+
+package unix
+
+import "unsafe"
+
+// UnixCredentials encodes credentials into a socket control message
+// for sending to another process. This can be used for
+// authentication.
+func UnixCredentials(ucred *Ucred) []byte {
+	b := make([]byte, CmsgSpace(SizeofUcred))
+	h := (*Cmsghdr)(unsafe.Pointer(&b[0]))
+	h.Level = SOL_SOCKET
+	h.Type = SCM_CREDENTIALS
+	h.SetLen(CmsgLen(SizeofUcred))
+	*((*Ucred)(cmsgData(h))) = *ucred
+	return b
+}
+
+// ParseUnixCredentials decodes a socket control message that contains
+// credentials in a Ucred structure. To receive such a message, the
+// SO_PASSCRED option must be enabled on the socket.
+func ParseUnixCredentials(m *SocketControlMessage) (*Ucred, error) {
+	if m.Header.Level != SOL_SOCKET {
+		return nil, EINVAL
+	}
+	if m.Header.Type != SCM_CREDENTIALS {
+		return nil, EINVAL
+	}
+	ucred := *(*Ucred)(unsafe.Pointer(&m.Data[0]))
+	return &ucred, nil
+}

vendor/golang.org/x/sys/unix/sockcmsg_unix.go

@@ -0,0 +1,104 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
+
+// Socket control messages
+
+package unix
+
+import "unsafe"
+
+// Round the length of a raw sockaddr up to align it properly.
+func cmsgAlignOf(salen int) int {
+	salign := sizeofPtr
+	// NOTE: It seems like 64-bit Darwin, DragonFly BSD and
+	// Solaris kernels still require 32-bit aligned access to
+	// network subsystem.
+	if darwin64Bit || dragonfly64Bit || solaris64Bit {
+		salign = 4
+	}
+	return (salen + salign - 1) & ^(salign - 1)
+}
+
+// CmsgLen returns the value to store in the Len field of the Cmsghdr
+// structure, taking into account any necessary alignment.
+func CmsgLen(datalen int) int {
+	return cmsgAlignOf(SizeofCmsghdr) + datalen
+}
+
+// CmsgSpace returns the number of bytes an ancillary element with
+// payload of the passed data length occupies.
+func CmsgSpace(datalen int) int {
+	return cmsgAlignOf(SizeofCmsghdr) + cmsgAlignOf(datalen)
+}
+
+func cmsgData(h *Cmsghdr) unsafe.Pointer {
+	return unsafe.Pointer(uintptr(unsafe.Pointer(h)) + uintptr(cmsgAlignOf(SizeofCmsghdr)))
+}
+
+// SocketControlMessage represents a socket control message.
+type SocketControlMessage struct {
+	Header Cmsghdr
+	Data   []byte
+}
+
+// ParseSocketControlMessage parses b as an array of socket control
+// messages.
+func ParseSocketControlMessage(b []byte) ([]SocketControlMessage, error) {
+	var msgs []SocketControlMessage
+	i := 0
+	for i+CmsgLen(0) <= len(b) {
+		h, dbuf, err := socketControlMessageHeaderAndData(b[i:])
+		if err != nil {
+			return nil, err
+		}
+		m := SocketControlMessage{Header: *h, Data: dbuf}
+		msgs = append(msgs, m)
+		i += cmsgAlignOf(int(h.Len))
+	}
+	return msgs, nil
+}
+
+func socketControlMessageHeaderAndData(b []byte) (*Cmsghdr, []byte, error) {
+	h := (*Cmsghdr)(unsafe.Pointer(&b[0]))
+	if h.Len < SizeofCmsghdr || uint64(h.Len) > uint64(len(b)) {
+		return nil, nil, EINVAL
+	}
+	return h, b[cmsgAlignOf(SizeofCmsghdr):h.Len], nil
+}
+
+// UnixRights encodes a set of open file descriptors into a socket
+// control message for sending to another process.
+func UnixRights(fds ...int) []byte {
+	datalen := len(fds) * 4
+	b := make([]byte, CmsgSpace(datalen))
+	h := (*Cmsghdr)(unsafe.Pointer(&b[0]))
+	h.Level = SOL_SOCKET
+	h.Type = SCM_RIGHTS
+	h.SetLen(CmsgLen(datalen))
+	data := cmsgData(h)
+	for _, fd := range fds {
+		*(*int32)(data) = int32(fd)
+		data = unsafe.Pointer(uintptr(data) + 4)
+	}
+	return b
+}
+
+// ParseUnixRights decodes a socket control message that contains an
+// integer array of open file descriptors from another process.
+func ParseUnixRights(m *SocketControlMessage) ([]int, error) {
+	if m.Header.Level != SOL_SOCKET {
+		return nil, EINVAL
+	}
+	if m.Header.Type != SCM_RIGHTS {
+		return nil, EINVAL
+	}
+	fds := make([]int, len(m.Data)>>2)
+	for i, j := 0, 0; i < len(m.Data); i += 4 {
+		fds[j] = int(*(*int32)(unsafe.Pointer(&m.Data[i])))
+		j++
+	}
+	return fds, nil
+}

vendor/golang.org/x/sys/unix/str.go

@@ -0,0 +1,26 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
+
+package unix
+
+func itoa(val int) string { // do it here rather than with fmt to avoid dependency
+	if val < 0 {
+		return "-" + uitoa(uint(-val))
+	}
+	return uitoa(uint(val))
+}
+
+func uitoa(val uint) string {
+	var buf [32]byte // big enough for int64
+	i := len(buf) - 1
+	for val >= 10 {
+		buf[i] = byte(val%10 + '0')
+		i--
+		val /= 10
+	}
+	buf[i] = byte(val + '0')
+	return string(buf[i:])
+}

vendor/golang.org/x/sys/unix/syscall.go

@@ -0,0 +1,54 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
+
+// Package unix contains an interface to the low-level operating system
+// primitives. OS details vary depending on the underlying system, and
+// by default, godoc will display OS-specific documentation for the current
+// system. If you want godoc to display OS documentation for another
+// system, set $GOOS and $GOARCH to the desired system. For example, if
+// you want to view documentation for freebsd/arm on linux/amd64, set $GOOS
+// to freebsd and $GOARCH to arm.
+//
+// The primary use of this package is inside other packages that provide a more
+// portable interface to the system, such as "os", "time" and "net".  Use
+// those packages rather than this one if you can.
+//
+// For details of the functions and data types in this package consult
+// the manuals for the appropriate operating system.
+//
+// These calls return err == nil to indicate success; otherwise
+// err represents an operating system error describing the failure and
+// holds a value of type syscall.Errno.
+package unix // import "golang.org/x/sys/unix"
+
+import "strings"
+
+// ByteSliceFromString returns a NUL-terminated slice of bytes
+// containing the text of s. If s contains a NUL byte at any
+// location, it returns (nil, EINVAL).
+func ByteSliceFromString(s string) ([]byte, error) {
+	if strings.IndexByte(s, 0) != -1 {
+		return nil, EINVAL
+	}
+	a := make([]byte, len(s)+1)
+	copy(a, s)
+	return a, nil
+}
+
+// BytePtrFromString returns a pointer to a NUL-terminated array of
+// bytes containing the text of s. If s contains a NUL byte at any
+// location, it returns (nil, EINVAL).
+func BytePtrFromString(s string) (*byte, error) {
+	a, err := ByteSliceFromString(s)
+	if err != nil {
+		return nil, err
+	}
+	return &a[0], nil
+}
+
+// Single-word zero for use when we need a valid pointer to 0 bytes.
+// See mkunix.pl.
+var _zero uintptr

vendor/golang.org/x/sys/unix/syscall_aix.go

@@ -0,0 +1,564 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix
+
+// Aix system calls.
+// This file is compiled as ordinary Go code,
+// but it is also input to mksyscall,
+// which parses the //sys lines and generates system call stubs.
+// Note that sometimes we use a lowercase //sys name and
+// wrap it in our own nicer implementation.
+
+package unix
+
+import (
+	"syscall"
+	"unsafe"
+)
+
+/*
+ * Wrapped
+ */
+
+//sys	utimes(path string, times *[2]Timeval) (err error)
+func Utimes(path string, tv []Timeval) error {
+	if len(tv) != 2 {
+		return EINVAL
+	}
+	return utimes(path, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
+}
+
+//sys	utimensat(dirfd int, path string, times *[2]Timespec, flag int) (err error)
+func UtimesNano(path string, ts []Timespec) error {
+	if len(ts) != 2 {
+		return EINVAL
+	}
+	return utimensat(AT_FDCWD, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0)
+}
+
+func UtimesNanoAt(dirfd int, path string, ts []Timespec, flags int) error {
+	if ts == nil {
+		return utimensat(dirfd, path, nil, flags)
+	}
+	if len(ts) != 2 {
+		return EINVAL
+	}
+	return utimensat(dirfd, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), flags)
+}
+
+func (sa *SockaddrInet4) sockaddr() (unsafe.Pointer, _Socklen, error) {
+	if sa.Port < 0 || sa.Port > 0xFFFF {
+		return nil, 0, EINVAL
+	}
+	sa.raw.Family = AF_INET
+	p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
+	p[0] = byte(sa.Port >> 8)
+	p[1] = byte(sa.Port)
+	for i := 0; i < len(sa.Addr); i++ {
+		sa.raw.Addr[i] = sa.Addr[i]
+	}
+	return unsafe.Pointer(&sa.raw), SizeofSockaddrInet4, nil
+}
+
+func (sa *SockaddrInet6) sockaddr() (unsafe.Pointer, _Socklen, error) {
+	if sa.Port < 0 || sa.Port > 0xFFFF {
+		return nil, 0, EINVAL
+	}
+	sa.raw.Family = AF_INET6
+	p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
+	p[0] = byte(sa.Port >> 8)
+	p[1] = byte(sa.Port)
+	sa.raw.Scope_id = sa.ZoneId
+	for i := 0; i < len(sa.Addr); i++ {
+		sa.raw.Addr[i] = sa.Addr[i]
+	}
+	return unsafe.Pointer(&sa.raw), SizeofSockaddrInet6, nil
+}
+
+func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, _Socklen, error) {
+	name := sa.Name
+	n := len(name)
+	if n > len(sa.raw.Path) {
+		return nil, 0, EINVAL
+	}
+	if n == len(sa.raw.Path) && name[0] != '@' {
+		return nil, 0, EINVAL
+	}
+	sa.raw.Family = AF_UNIX
+	for i := 0; i < n; i++ {
+		sa.raw.Path[i] = uint8(name[i])
+	}
+	// length is family (uint16), name, NUL.
+	sl := _Socklen(2)
+	if n > 0 {
+		sl += _Socklen(n) + 1
+	}
+	if sa.raw.Path[0] == '@' {
+		sa.raw.Path[0] = 0
+		// Don't count trailing NUL for abstract address.
+		sl--
+	}
+
+	return unsafe.Pointer(&sa.raw), sl, nil
+}
+
+func Getsockname(fd int) (sa Sockaddr, err error) {
+	var rsa RawSockaddrAny
+	var len _Socklen = SizeofSockaddrAny
+	if err = getsockname(fd, &rsa, &len); err != nil {
+		return
+	}
+	return anyToSockaddr(fd, &rsa)
+}
+
+//sys	getcwd(buf []byte) (err error)
+
+const ImplementsGetwd = true
+
+func Getwd() (ret string, err error) {
+	for len := uint64(4096); ; len *= 2 {
+		b := make([]byte, len)
+		err := getcwd(b)
+		if err == nil {
+			i := 0
+			for b[i] != 0 {
+				i++
+			}
+			return string(b[0:i]), nil
+		}
+		if err != ERANGE {
+			return "", err
+		}
+	}
+}
+
+func Getcwd(buf []byte) (n int, err error) {
+	err = getcwd(buf)
+	if err == nil {
+		i := 0
+		for buf[i] != 0 {
+			i++
+		}
+		n = i + 1
+	}
+	return
+}
+
+func Getgroups() (gids []int, err error) {
+	n, err := getgroups(0, nil)
+	if err != nil {
+		return nil, err
+	}
+	if n == 0 {
+		return nil, nil
+	}
+
+	// Sanity check group count. Max is 16 on BSD.
+	if n < 0 || n > 1000 {
+		return nil, EINVAL
+	}
+
+	a := make([]_Gid_t, n)
+	n, err = getgroups(n, &a[0])
+	if err != nil {
+		return nil, err
+	}
+	gids = make([]int, n)
+	for i, v := range a[0:n] {
+		gids[i] = int(v)
+	}
+	return
+}
+
+func Setgroups(gids []int) (err error) {
+	if len(gids) == 0 {
+		return setgroups(0, nil)
+	}
+
+	a := make([]_Gid_t, len(gids))
+	for i, v := range gids {
+		a[i] = _Gid_t(v)
+	}
+	return setgroups(len(a), &a[0])
+}
+
+/*
+ * Socket
+ */
+
+//sys	accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error)
+
+func Accept(fd int) (nfd int, sa Sockaddr, err error) {
+	var rsa RawSockaddrAny
+	var len _Socklen = SizeofSockaddrAny
+	nfd, err = accept(fd, &rsa, &len)
+	if nfd == -1 {
+		return
+	}
+	sa, err = anyToSockaddr(fd, &rsa)
+	if err != nil {
+		Close(nfd)
+		nfd = 0
+	}
+	return
+}
+
+func Recvmsg(fd int, p, oob []byte, flags int) (n, oobn int, recvflags int, from Sockaddr, err error) {
+	// Recvmsg not implemented on AIX
+	sa := new(SockaddrUnix)
+	return -1, -1, -1, sa, ENOSYS
+}
+
+func Sendmsg(fd int, p, oob []byte, to Sockaddr, flags int) (err error) {
+	_, err = SendmsgN(fd, p, oob, to, flags)
+	return
+}
+
+func SendmsgN(fd int, p, oob []byte, to Sockaddr, flags int) (n int, err error) {
+	// SendmsgN not implemented on AIX
+	return -1, ENOSYS
+}
+
+func anyToSockaddr(fd int, rsa *RawSockaddrAny) (Sockaddr, error) {
+	switch rsa.Addr.Family {
+
+	case AF_UNIX:
+		pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa))
+		sa := new(SockaddrUnix)
+
+		// Some versions of AIX have a bug in getsockname (see IV78655).
+		// We can't rely on sa.Len being set correctly.
+		n := SizeofSockaddrUnix - 3 // substract leading Family, Len, terminating NUL.
+		for i := 0; i < n; i++ {
+			if pp.Path[i] == 0 {
+				n = i
+				break
+			}
+		}
+
+		bytes := (*[10000]byte)(unsafe.Pointer(&pp.Path[0]))[0:n]
+		sa.Name = string(bytes)
+		return sa, nil
+
+	case AF_INET:
+		pp := (*RawSockaddrInet4)(unsafe.Pointer(rsa))
+		sa := new(SockaddrInet4)
+		p := (*[2]byte)(unsafe.Pointer(&pp.Port))
+		sa.Port = int(p[0])<<8 + int(p[1])
+		for i := 0; i < len(sa.Addr); i++ {
+			sa.Addr[i] = pp.Addr[i]
+		}
+		return sa, nil
+
+	case AF_INET6:
+		pp := (*RawSockaddrInet6)(unsafe.Pointer(rsa))
+		sa := new(SockaddrInet6)
+		p := (*[2]byte)(unsafe.Pointer(&pp.Port))
+		sa.Port = int(p[0])<<8 + int(p[1])
+		sa.ZoneId = pp.Scope_id
+		for i := 0; i < len(sa.Addr); i++ {
+			sa.Addr[i] = pp.Addr[i]
+		}
+		return sa, nil
+	}
+	return nil, EAFNOSUPPORT
+}
+
+func Gettimeofday(tv *Timeval) (err error) {
+	err = gettimeofday(tv, nil)
+	return
+}
+
+// TODO
+func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
+	return -1, ENOSYS
+}
+
+//sys	getdirent(fd int, buf []byte) (n int, err error)
+func ReadDirent(fd int, buf []byte) (n int, err error) {
+	return getdirent(fd, buf)
+}
+
+//sys	wait4(pid Pid_t, status *_C_int, options int, rusage *Rusage) (wpid Pid_t, err error)
+func Wait4(pid int, wstatus *WaitStatus, options int, rusage *Rusage) (wpid int, err error) {
+	var status _C_int
+	var r Pid_t
+	err = ERESTART
+	// AIX wait4 may return with ERESTART errno, while the processus is still
+	// active.
+	for err == ERESTART {
+		r, err = wait4(Pid_t(pid), &status, options, rusage)
+	}
+	wpid = int(r)
+	if wstatus != nil {
+		*wstatus = WaitStatus(status)
+	}
+	return
+}
+
+/*
+ * Wait
+ */
+
+type WaitStatus uint32
+
+func (w WaitStatus) Stopped() bool { return w&0x40 != 0 }
+func (w WaitStatus) StopSignal() syscall.Signal {
+	if !w.Stopped() {
+		return -1
+	}
+	return syscall.Signal(w>>8) & 0xFF
+}
+
+func (w WaitStatus) Exited() bool { return w&0xFF == 0 }
+func (w WaitStatus) ExitStatus() int {
+	if !w.Exited() {
+		return -1
+	}
+	return int((w >> 8) & 0xFF)
+}
+
+func (w WaitStatus) Signaled() bool { return w&0x40 == 0 && w&0xFF != 0 }
+func (w WaitStatus) Signal() syscall.Signal {
+	if !w.Signaled() {
+		return -1
+	}
+	return syscall.Signal(w>>16) & 0xFF
+}
+
+func (w WaitStatus) Continued() bool { return w&0x01000000 != 0 }
+
+func (w WaitStatus) CoreDump() bool { return w&0x200 != 0 }
+
+func (w WaitStatus) TrapCause() int { return -1 }
+
+//sys	ioctl(fd int, req uint, arg uintptr) (err error)
+
+// ioctl itself should not be exposed directly, but additional get/set
+// functions for specific types are permissible.
+
+// IoctlSetInt performs an ioctl operation which sets an integer value
+// on fd, using the specified request number.
+func IoctlSetInt(fd int, req uint, value int) error {
+	return ioctl(fd, req, uintptr(value))
+}
+
+func ioctlSetWinsize(fd int, req uint, value *Winsize) error {
+	return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
+}
+
+func ioctlSetTermios(fd int, req uint, value *Termios) error {
+	return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
+}
+
+// IoctlGetInt performs an ioctl operation which gets an integer value
+// from fd, using the specified request number.
+func IoctlGetInt(fd int, req uint) (int, error) {
+	var value int
+	err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
+	return value, err
+}
+
+func IoctlGetWinsize(fd int, req uint) (*Winsize, error) {
+	var value Winsize
+	err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
+	return &value, err
+}
+
+func IoctlGetTermios(fd int, req uint) (*Termios, error) {
+	var value Termios
+	err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
+	return &value, err
+}
+
+// fcntl must never be called with cmd=F_DUP2FD because it doesn't work on AIX
+// There is no way to create a custom fcntl and to keep //sys fcntl easily,
+// Therefore, the programmer must call dup2 instead of fcntl in this case.
+
+// FcntlInt performs a fcntl syscall on fd with the provided command and argument.
+//sys	FcntlInt(fd uintptr, cmd int, arg int) (r int,err error) = fcntl
+
+// FcntlFlock performs a fcntl syscall for the F_GETLK, F_SETLK or F_SETLKW command.
+//sys	FcntlFlock(fd uintptr, cmd int, lk *Flock_t) (err error) = fcntl
+
+func Flock(fd int, how int) (err error) {
+	return syscall.Flock(fd, how)
+}
+
+/*
+ * Direct access
+ */
+
+//sys	Acct(path string) (err error)
+//sys	Chdir(path string) (err error)
+//sys	Chroot(path string) (err error)
+//sys	Close(fd int) (err error)
+//sys	Dup(oldfd int) (fd int, err error)
+//sys	Dup3(oldfd int, newfd int, flags int) (err error)
+//sys	Exit(code int)
+//sys	Faccessat(dirfd int, path string, mode uint32, flags int) (err error)
+//sys	Fallocate(fd int, mode uint32, off int64, len int64) (err error)
+//sys	Fchdir(fd int) (err error)
+//sys	Fchmod(fd int, mode uint32) (err error)
+//sys	Fchmodat(dirfd int, path string, mode uint32, flags int) (err error)
+//sys	Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error)
+//sys	fcntl(fd int, cmd int, arg int) (val int, err error)
+//sys	Fdatasync(fd int) (err error)
+//sys	Fsync(fd int) (err error)
+// readdir_r
+//sysnb	Getpgid(pid int) (pgid int, err error)
+
+//sys	Getpgrp() (pid int)
+
+//sysnb	Getpid() (pid int)
+//sysnb	Getppid() (ppid int)
+//sys	Getpriority(which int, who int) (prio int, err error)
+//sysnb	Getrusage(who int, rusage *Rusage) (err error)
+//sysnb	Getsid(pid int) (sid int, err error)
+//sysnb	Kill(pid int, sig syscall.Signal) (err error)
+//sys	Klogctl(typ int, buf []byte) (n int, err error) = syslog
+//sys	Mkdir(dirfd int, path string, mode uint32) (err error)
+//sys	Mkdirat(dirfd int, path string, mode uint32) (err error)
+//sys	Mkfifo(path string, mode uint32) (err error)
+//sys	Mknod(path string, mode uint32, dev int) (err error)
+//sys	Mknodat(dirfd int, path string, mode uint32, dev int) (err error)
+//sys	Nanosleep(time *Timespec, leftover *Timespec) (err error)
+//sys   Open(path string, mode int, perm uint32) (fd int, err error) = open64
+//sys   Openat(dirfd int, path string, flags int, mode uint32) (fd int, err error)
+//sys	read(fd int, p []byte) (n int, err error)
+//sys	Readlink(path string, buf []byte) (n int, err error)
+//sys	Removexattr(path string, attr string) (err error)
+//sys	Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error)
+//sys	Setdomainname(p []byte) (err error)
+//sys	Sethostname(p []byte) (err error)
+//sysnb	Setpgid(pid int, pgid int) (err error)
+//sysnb	Setsid() (pid int, err error)
+//sysnb	Settimeofday(tv *Timeval) (err error)
+
+//sys	Setuid(uid int) (err error)
+//sys	Setgid(uid int) (err error)
+
+//sys	Setpriority(which int, who int, prio int) (err error)
+//sys	Statx(dirfd int, path string, flags int, mask int, stat *Statx_t) (err error)
+//sys	Sync()
+//sys	Tee(rfd int, wfd int, len int, flags int) (n int64, err error)
+//sysnb	Times(tms *Tms) (ticks uintptr, err error)
+//sysnb	Umask(mask int) (oldmask int)
+//sysnb	Uname(buf *Utsname) (err error)
+//TODO umount
+// //sys	Unmount(target string, flags int) (err error) = umount
+//sys   Unlink(path string) (err error)
+//sys   Unlinkat(dirfd int, path string, flags int) (err error)
+//sys	Unshare(flags int) (err error)
+//sys	Ustat(dev int, ubuf *Ustat_t) (err error)
+//sys	write(fd int, p []byte) (n int, err error)
+//sys	readlen(fd int, p *byte, np int) (n int, err error) = read
+//sys	writelen(fd int, p *byte, np int) (n int, err error) = write
+
+//sys	Dup2(oldfd int, newfd int) (err error)
+//sys	Fadvise(fd int, offset int64, length int64, advice int) (err error) = posix_fadvise64
+//sys	Fchown(fd int, uid int, gid int) (err error)
+//sys	Fstat(fd int, stat *Stat_t) (err error)
+//sys	Fstatat(dirfd int, path string, stat *Stat_t, flags int) (err error) = fstatat
+//sys	Fstatfs(fd int, buf *Statfs_t) (err error)
+//sys	Ftruncate(fd int, length int64) (err error)
+//sysnb	Getegid() (egid int)
+//sysnb	Geteuid() (euid int)
+//sysnb	Getgid() (gid int)
+//sysnb	Getuid() (uid int)
+//sys	Lchown(path string, uid int, gid int) (err error)
+//sys	Listen(s int, n int) (err error)
+//sys	Lstat(path string, stat *Stat_t) (err error)
+//sys	Pause() (err error)
+//sys	Pread(fd int, p []byte, offset int64) (n int, err error) = pread64
+//sys	Pwrite(fd int, p []byte, offset int64) (n int, err error) = pwrite64
+//TODO Select
+// //sys	Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error)
+//sys	Pselect(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timespec, sigmask *Sigset_t) (n int, err error)
+//sysnb	Setregid(rgid int, egid int) (err error)
+//sysnb	Setreuid(ruid int, euid int) (err error)
+//sys	Shutdown(fd int, how int) (err error)
+//sys	Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error)
+//sys	Stat(path string, stat *Stat_t) (err error)
+//sys	Statfs(path string, buf *Statfs_t) (err error)
+//sys	Truncate(path string, length int64) (err error)
+
+//sys	bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
+//sys	connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
+//sysnb	getgroups(n int, list *_Gid_t) (nn int, err error)
+//sysnb	setgroups(n int, list *_Gid_t) (err error)
+//sys	getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error)
+//sys	setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error)
+//sysnb	socket(domain int, typ int, proto int) (fd int, err error)
+//sysnb	socketpair(domain int, typ int, proto int, fd *[2]int32) (err error)
+//sysnb	getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
+//sysnb	getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
+//sys	recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error)
+//sys	sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error)
+//sys	recvmsg(s int, msg *Msghdr, flags int) (n int, err error)
+//sys	sendmsg(s int, msg *Msghdr, flags int) (n int, err error)
+
+//sys	munmap(addr uintptr, length uintptr) (err error)
+
+var mapper = &mmapper{
+	active: make(map[*byte][]byte),
+	mmap:   mmap,
+	munmap: munmap,
+}
+
+func Mmap(fd int, offset int64, length int, prot int, flags int) (data []byte, err error) {
+	return mapper.Mmap(fd, offset, length, prot, flags)
+}
+
+func Munmap(b []byte) (err error) {
+	return mapper.Munmap(b)
+}
+
+//sys	Madvise(b []byte, advice int) (err error)
+//sys	Mprotect(b []byte, prot int) (err error)
+//sys	Mlock(b []byte) (err error)
+//sys	Mlockall(flags int) (err error)
+//sys	Msync(b []byte, flags int) (err error)
+//sys	Munlock(b []byte) (err error)
+//sys	Munlockall() (err error)
+
+//sysnb pipe(p *[2]_C_int) (err error)
+
+func Pipe(p []int) (err error) {
+	if len(p) != 2 {
+		return EINVAL
+	}
+	var pp [2]_C_int
+	err = pipe(&pp)
+	p[0] = int(pp[0])
+	p[1] = int(pp[1])
+	return
+}
+
+//sysnb pipe2(p *[2]_C_int, flags int) (err error)
+
+func Pipe2(p []int, flags int) (err error) {
+	if len(p) != 2 {
+		return EINVAL
+	}
+	var pp [2]_C_int
+	err = pipe2(&pp, flags)
+	p[0] = int(pp[0])
+	p[1] = int(pp[1])
+	return
+}
+
+//sys	poll(fds *PollFd, nfds int, timeout int) (n int, err error)
+
+func Poll(fds []PollFd, timeout int) (n int, err error) {
+	if len(fds) == 0 {
+		return poll(nil, 0, timeout)
+	}
+	return poll(&fds[0], len(fds), timeout)
+}
+
+//sys	gettimeofday(tv *Timeval, tzp *Timezone) (err error)
+//sysnb	Time(t *Time_t) (tt Time_t, err error)
+//sys	Utime(path string, buf *Utimbuf) (err error)

vendor/golang.org/x/sys/unix/syscall_aix_ppc.go

@@ -0,0 +1,34 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix
+// +build ppc
+
+package unix
+
+//sysnb	Getrlimit(resource int, rlim *Rlimit) (err error) = getrlimit64
+//sysnb	Setrlimit(resource int, rlim *Rlimit) (err error) = setrlimit64
+//sys	Seek(fd int, offset int64, whence int) (off int64, err error) = lseek64
+
+//sys	mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error)
+
+func setTimespec(sec, nsec int64) Timespec {
+	return Timespec{Sec: int32(sec), Nsec: int32(nsec)}
+}
+
+func setTimeval(sec, usec int64) Timeval {
+	return Timeval{Sec: int32(sec), Usec: int32(usec)}
+}
+
+func (iov *Iovec) SetLen(length int) {
+	iov.Len = uint32(length)
+}
+
+func (msghdr *Msghdr) SetControllen(length int) {
+	msghdr.Controllen = uint32(length)
+}
+
+func (cmsg *Cmsghdr) SetLen(length int) {
+	cmsg.Len = uint32(length)
+}

vendor/golang.org/x/sys/unix/syscall_aix_ppc64.go

@@ -0,0 +1,34 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix
+// +build ppc64
+
+package unix
+
+//sysnb	Getrlimit(resource int, rlim *Rlimit) (err error)
+//sysnb	Setrlimit(resource int, rlim *Rlimit) (err error)
+//sys	Seek(fd int, offset int64, whence int) (off int64, err error) = lseek
+
+//sys	mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error) = mmap64
+
+func setTimespec(sec, nsec int64) Timespec {
+	return Timespec{Sec: sec, Nsec: nsec}
+}
+
+func setTimeval(sec, usec int64) Timeval {
+	return Timeval{Sec: int64(sec), Usec: int32(usec)}
+}
+
+func (iov *Iovec) SetLen(length int) {
+	iov.Len = uint64(length)
+}
+
+func (msghdr *Msghdr) SetControllen(length int) {
+	msghdr.Controllen = uint32(length)
+}
+
+func (cmsg *Cmsghdr) SetLen(length int) {
+	cmsg.Len = uint32(length)
+}

vendor/golang.org/x/sys/unix/syscall_bsd.go

@@ -0,0 +1,624 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build darwin dragonfly freebsd netbsd openbsd
+
+// BSD system call wrappers shared by *BSD based systems
+// including OS X (Darwin) and FreeBSD.  Like the other
+// syscall_*.go files it is compiled as Go code but also
+// used as input to mksyscall which parses the //sys
+// lines and generates system call stubs.
+
+package unix
+
+import (
+	"runtime"
+	"syscall"
+	"unsafe"
+)
+
+/*
+ * Wrapped
+ */
+
+//sysnb	getgroups(ngid int, gid *_Gid_t) (n int, err error)
+//sysnb	setgroups(ngid int, gid *_Gid_t) (err error)
+
+func Getgroups() (gids []int, err error) {
+	n, err := getgroups(0, nil)
+	if err != nil {
+		return nil, err
+	}
+	if n == 0 {
+		return nil, nil
+	}
+
+	// Sanity check group count. Max is 16 on BSD.
+	if n < 0 || n > 1000 {
+		return nil, EINVAL
+	}
+
+	a := make([]_Gid_t, n)
+	n, err = getgroups(n, &a[0])
+	if err != nil {
+		return nil, err
+	}
+	gids = make([]int, n)
+	for i, v := range a[0:n] {
+		gids[i] = int(v)
+	}
+	return
+}
+
+func Setgroups(gids []int) (err error) {
+	if len(gids) == 0 {
+		return setgroups(0, nil)
+	}
+
+	a := make([]_Gid_t, len(gids))
+	for i, v := range gids {
+		a[i] = _Gid_t(v)
+	}
+	return setgroups(len(a), &a[0])
+}
+
+func ReadDirent(fd int, buf []byte) (n int, err error) {
+	// Final argument is (basep *uintptr) and the syscall doesn't take nil.
+	// 64 bits should be enough. (32 bits isn't even on 386). Since the
+	// actual system call is getdirentries64, 64 is a good guess.
+	// TODO(rsc): Can we use a single global basep for all calls?
+	var base = (*uintptr)(unsafe.Pointer(new(uint64)))
+	return Getdirentries(fd, buf, base)
+}
+
+// Wait status is 7 bits at bottom, either 0 (exited),
+// 0x7F (stopped), or a signal number that caused an exit.
+// The 0x80 bit is whether there was a core dump.
+// An extra number (exit code, signal causing a stop)
+// is in the high bits.
+
+type WaitStatus uint32
+
+const (
+	mask  = 0x7F
+	core  = 0x80
+	shift = 8
+
+	exited  = 0
+	stopped = 0x7F
+)
+
+func (w WaitStatus) Exited() bool { return w&mask == exited }
+
+func (w WaitStatus) ExitStatus() int {
+	if w&mask != exited {
+		return -1
+	}
+	return int(w >> shift)
+}
+
+func (w WaitStatus) Signaled() bool { return w&mask != stopped && w&mask != 0 }
+
+func (w WaitStatus) Signal() syscall.Signal {
+	sig := syscall.Signal(w & mask)
+	if sig == stopped || sig == 0 {
+		return -1
+	}
+	return sig
+}
+
+func (w WaitStatus) CoreDump() bool { return w.Signaled() && w&core != 0 }
+
+func (w WaitStatus) Stopped() bool { return w&mask == stopped && syscall.Signal(w>>shift) != SIGSTOP }
+
+func (w WaitStatus) Continued() bool { return w&mask == stopped && syscall.Signal(w>>shift) == SIGSTOP }
+
+func (w WaitStatus) StopSignal() syscall.Signal {
+	if !w.Stopped() {
+		return -1
+	}
+	return syscall.Signal(w>>shift) & 0xFF
+}
+
+func (w WaitStatus) TrapCause() int { return -1 }
+
+//sys	wait4(pid int, wstatus *_C_int, options int, rusage *Rusage) (wpid int, err error)
+
+func Wait4(pid int, wstatus *WaitStatus, options int, rusage *Rusage) (wpid int, err error) {
+	var status _C_int
+	wpid, err = wait4(pid, &status, options, rusage)
+	if wstatus != nil {
+		*wstatus = WaitStatus(status)
+	}
+	return
+}
+
+//sys	accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error)
+//sys	bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
+//sys	connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
+//sysnb	socket(domain int, typ int, proto int) (fd int, err error)
+//sys	getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error)
+//sys	setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error)
+//sysnb	getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
+//sysnb	getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
+//sys	Shutdown(s int, how int) (err error)
+
+func (sa *SockaddrInet4) sockaddr() (unsafe.Pointer, _Socklen, error) {
+	if sa.Port < 0 || sa.Port > 0xFFFF {
+		return nil, 0, EINVAL
+	}
+	sa.raw.Len = SizeofSockaddrInet4
+	sa.raw.Family = AF_INET
+	p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
+	p[0] = byte(sa.Port >> 8)
+	p[1] = byte(sa.Port)
+	for i := 0; i < len(sa.Addr); i++ {
+		sa.raw.Addr[i] = sa.Addr[i]
+	}
+	return unsafe.Pointer(&sa.raw), _Socklen(sa.raw.Len), nil
+}
+
+func (sa *SockaddrInet6) sockaddr() (unsafe.Pointer, _Socklen, error) {
+	if sa.Port < 0 || sa.Port > 0xFFFF {
+		return nil, 0, EINVAL
+	}
+	sa.raw.Len = SizeofSockaddrInet6
+	sa.raw.Family = AF_INET6
+	p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
+	p[0] = byte(sa.Port >> 8)
+	p[1] = byte(sa.Port)
+	sa.raw.Scope_id = sa.ZoneId
+	for i := 0; i < len(sa.Addr); i++ {
+		sa.raw.Addr[i] = sa.Addr[i]
+	}
+	return unsafe.Pointer(&sa.raw), _Socklen(sa.raw.Len), nil
+}
+
+func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, _Socklen, error) {
+	name := sa.Name
+	n := len(name)
+	if n >= len(sa.raw.Path) || n == 0 {
+		return nil, 0, EINVAL
+	}
+	sa.raw.Len = byte(3 + n) // 2 for Family, Len; 1 for NUL
+	sa.raw.Family = AF_UNIX
+	for i := 0; i < n; i++ {
+		sa.raw.Path[i] = int8(name[i])
+	}
+	return unsafe.Pointer(&sa.raw), _Socklen(sa.raw.Len), nil
+}
+
+func (sa *SockaddrDatalink) sockaddr() (unsafe.Pointer, _Socklen, error) {
+	if sa.Index == 0 {
+		return nil, 0, EINVAL
+	}
+	sa.raw.Len = sa.Len
+	sa.raw.Family = AF_LINK
+	sa.raw.Index = sa.Index
+	sa.raw.Type = sa.Type
+	sa.raw.Nlen = sa.Nlen
+	sa.raw.Alen = sa.Alen
+	sa.raw.Slen = sa.Slen
+	for i := 0; i < len(sa.raw.Data); i++ {
+		sa.raw.Data[i] = sa.Data[i]
+	}
+	return unsafe.Pointer(&sa.raw), SizeofSockaddrDatalink, nil
+}
+
+func anyToSockaddr(fd int, rsa *RawSockaddrAny) (Sockaddr, error) {
+	switch rsa.Addr.Family {
+	case AF_LINK:
+		pp := (*RawSockaddrDatalink)(unsafe.Pointer(rsa))
+		sa := new(SockaddrDatalink)
+		sa.Len = pp.Len
+		sa.Family = pp.Family
+		sa.Index = pp.Index
+		sa.Type = pp.Type
+		sa.Nlen = pp.Nlen
+		sa.Alen = pp.Alen
+		sa.Slen = pp.Slen
+		for i := 0; i < len(sa.Data); i++ {
+			sa.Data[i] = pp.Data[i]
+		}
+		return sa, nil
+
+	case AF_UNIX:
+		pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa))
+		if pp.Len < 2 || pp.Len > SizeofSockaddrUnix {
+			return nil, EINVAL
+		}
+		sa := new(SockaddrUnix)
+
+		// Some BSDs include the trailing NUL in the length, whereas
+		// others do not. Work around this by subtracting the leading
+		// family and len. The path is then scanned to see if a NUL
+		// terminator still exists within the length.
+		n := int(pp.Len) - 2 // subtract leading Family, Len
+		for i := 0; i < n; i++ {
+			if pp.Path[i] == 0 {
+				// found early NUL; assume Len included the NUL
+				// or was overestimating.
+				n = i
+				break
+			}
+		}
+		bytes := (*[10000]byte)(unsafe.Pointer(&pp.Path[0]))[0:n]
+		sa.Name = string(bytes)
+		return sa, nil
+
+	case AF_INET:
+		pp := (*RawSockaddrInet4)(unsafe.Pointer(rsa))
+		sa := new(SockaddrInet4)
+		p := (*[2]byte)(unsafe.Pointer(&pp.Port))
+		sa.Port = int(p[0])<<8 + int(p[1])
+		for i := 0; i < len(sa.Addr); i++ {
+			sa.Addr[i] = pp.Addr[i]
+		}
+		return sa, nil
+
+	case AF_INET6:
+		pp := (*RawSockaddrInet6)(unsafe.Pointer(rsa))
+		sa := new(SockaddrInet6)
+		p := (*[2]byte)(unsafe.Pointer(&pp.Port))
+		sa.Port = int(p[0])<<8 + int(p[1])
+		sa.ZoneId = pp.Scope_id
+		for i := 0; i < len(sa.Addr); i++ {
+			sa.Addr[i] = pp.Addr[i]
+		}
+		return sa, nil
+	}
+	return nil, EAFNOSUPPORT
+}
+
+func Accept(fd int) (nfd int, sa Sockaddr, err error) {
+	var rsa RawSockaddrAny
+	var len _Socklen = SizeofSockaddrAny
+	nfd, err = accept(fd, &rsa, &len)
+	if err != nil {
+		return
+	}
+	if runtime.GOOS == "darwin" && len == 0 {
+		// Accepted socket has no address.
+		// This is likely due to a bug in xnu kernels,
+		// where instead of ECONNABORTED error socket
+		// is accepted, but has no address.
+		Close(nfd)
+		return 0, nil, ECONNABORTED
+	}
+	sa, err = anyToSockaddr(fd, &rsa)
+	if err != nil {
+		Close(nfd)
+		nfd = 0
+	}
+	return
+}
+
+func Getsockname(fd int) (sa Sockaddr, err error) {
+	var rsa RawSockaddrAny
+	var len _Socklen = SizeofSockaddrAny
+	if err = getsockname(fd, &rsa, &len); err != nil {
+		return
+	}
+	// TODO(jsing): DragonFly has a "bug" (see issue 3349), which should be
+	// reported upstream.
+	if runtime.GOOS == "dragonfly" && rsa.Addr.Family == AF_UNSPEC && rsa.Addr.Len == 0 {
+		rsa.Addr.Family = AF_UNIX
+		rsa.Addr.Len = SizeofSockaddrUnix
+	}
+	return anyToSockaddr(fd, &rsa)
+}
+
+//sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error)
+
+// GetsockoptString returns the string value of the socket option opt for the
+// socket associated with fd at the given socket level.
+func GetsockoptString(fd, level, opt int) (string, error) {
+	buf := make([]byte, 256)
+	vallen := _Socklen(len(buf))
+	err := getsockopt(fd, level, opt, unsafe.Pointer(&buf[0]), &vallen)
+	if err != nil {
+		return "", err
+	}
+	return string(buf[:vallen-1]), nil
+}
+
+//sys   recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error)
+//sys   sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error)
+//sys	recvmsg(s int, msg *Msghdr, flags int) (n int, err error)
+
+func Recvmsg(fd int, p, oob []byte, flags int) (n, oobn int, recvflags int, from Sockaddr, err error) {
+	var msg Msghdr
+	var rsa RawSockaddrAny
+	msg.Name = (*byte)(unsafe.Pointer(&rsa))
+	msg.Namelen = uint32(SizeofSockaddrAny)
+	var iov Iovec
+	if len(p) > 0 {
+		iov.Base = (*byte)(unsafe.Pointer(&p[0]))
+		iov.SetLen(len(p))
+	}
+	var dummy byte
+	if len(oob) > 0 {
+		// receive at least one normal byte
+		if len(p) == 0 {
+			iov.Base = &dummy
+			iov.SetLen(1)
+		}
+		msg.Control = (*byte)(unsafe.Pointer(&oob[0]))
+		msg.SetControllen(len(oob))
+	}
+	msg.Iov = &iov
+	msg.Iovlen = 1
+	if n, err = recvmsg(fd, &msg, flags); err != nil {
+		return
+	}
+	oobn = int(msg.Controllen)
+	recvflags = int(msg.Flags)
+	// source address is only specified if the socket is unconnected
+	if rsa.Addr.Family != AF_UNSPEC {
+		from, err = anyToSockaddr(fd, &rsa)
+	}
+	return
+}
+
+//sys	sendmsg(s int, msg *Msghdr, flags int) (n int, err error)
+
+func Sendmsg(fd int, p, oob []byte, to Sockaddr, flags int) (err error) {
+	_, err = SendmsgN(fd, p, oob, to, flags)
+	return
+}
+
+func SendmsgN(fd int, p, oob []byte, to Sockaddr, flags int) (n int, err error) {
+	var ptr unsafe.Pointer
+	var salen _Socklen
+	if to != nil {
+		ptr, salen, err = to.sockaddr()
+		if err != nil {
+			return 0, err
+		}
+	}
+	var msg Msghdr
+	msg.Name = (*byte)(unsafe.Pointer(ptr))
+	msg.Namelen = uint32(salen)
+	var iov Iovec
+	if len(p) > 0 {
+		iov.Base = (*byte)(unsafe.Pointer(&p[0]))
+		iov.SetLen(len(p))
+	}
+	var dummy byte
+	if len(oob) > 0 {
+		// send at least one normal byte
+		if len(p) == 0 {
+			iov.Base = &dummy
+			iov.SetLen(1)
+		}
+		msg.Control = (*byte)(unsafe.Pointer(&oob[0]))
+		msg.SetControllen(len(oob))
+	}
+	msg.Iov = &iov
+	msg.Iovlen = 1
+	if n, err = sendmsg(fd, &msg, flags); err != nil {
+		return 0, err
+	}
+	if len(oob) > 0 && len(p) == 0 {
+		n = 0
+	}
+	return n, nil
+}
+
+//sys	kevent(kq int, change unsafe.Pointer, nchange int, event unsafe.Pointer, nevent int, timeout *Timespec) (n int, err error)
+
+func Kevent(kq int, changes, events []Kevent_t, timeout *Timespec) (n int, err error) {
+	var change, event unsafe.Pointer
+	if len(changes) > 0 {
+		change = unsafe.Pointer(&changes[0])
+	}
+	if len(events) > 0 {
+		event = unsafe.Pointer(&events[0])
+	}
+	return kevent(kq, change, len(changes), event, len(events), timeout)
+}
+
+//sys	sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL
+
+// sysctlmib translates name to mib number and appends any additional args.
+func sysctlmib(name string, args ...int) ([]_C_int, error) {
+	// Translate name to mib number.
+	mib, err := nametomib(name)
+	if err != nil {
+		return nil, err
+	}
+
+	for _, a := range args {
+		mib = append(mib, _C_int(a))
+	}
+
+	return mib, nil
+}
+
+func Sysctl(name string) (string, error) {
+	return SysctlArgs(name)
+}
+
+func SysctlArgs(name string, args ...int) (string, error) {
+	buf, err := SysctlRaw(name, args...)
+	if err != nil {
+		return "", err
+	}
+	n := len(buf)
+
+	// Throw away terminating NUL.
+	if n > 0 && buf[n-1] == '\x00' {
+		n--
+	}
+	return string(buf[0:n]), nil
+}
+
+func SysctlUint32(name string) (uint32, error) {
+	return SysctlUint32Args(name)
+}
+
+func SysctlUint32Args(name string, args ...int) (uint32, error) {
+	mib, err := sysctlmib(name, args...)
+	if err != nil {
+		return 0, err
+	}
+
+	n := uintptr(4)
+	buf := make([]byte, 4)
+	if err := sysctl(mib, &buf[0], &n, nil, 0); err != nil {
+		return 0, err
+	}
+	if n != 4 {
+		return 0, EIO
+	}
+	return *(*uint32)(unsafe.Pointer(&buf[0])), nil
+}
+
+func SysctlUint64(name string, args ...int) (uint64, error) {
+	mib, err := sysctlmib(name, args...)
+	if err != nil {
+		return 0, err
+	}
+
+	n := uintptr(8)
+	buf := make([]byte, 8)
+	if err := sysctl(mib, &buf[0], &n, nil, 0); err != nil {
+		return 0, err
+	}
+	if n != 8 {
+		return 0, EIO
+	}
+	return *(*uint64)(unsafe.Pointer(&buf[0])), nil
+}
+
+func SysctlRaw(name string, args ...int) ([]byte, error) {
+	mib, err := sysctlmib(name, args...)
+	if err != nil {
+		return nil, err
+	}
+
+	// Find size.
+	n := uintptr(0)
+	if err := sysctl(mib, nil, &n, nil, 0); err != nil {
+		return nil, err
+	}
+	if n == 0 {
+		return nil, nil
+	}
+
+	// Read into buffer of that size.
+	buf := make([]byte, n)
+	if err := sysctl(mib, &buf[0], &n, nil, 0); err != nil {
+		return nil, err
+	}
+
+	// The actual call may return less than the original reported required
+	// size so ensure we deal with that.
+	return buf[:n], nil
+}
+
+//sys	utimes(path string, timeval *[2]Timeval) (err error)
+
+func Utimes(path string, tv []Timeval) error {
+	if tv == nil {
+		return utimes(path, nil)
+	}
+	if len(tv) != 2 {
+		return EINVAL
+	}
+	return utimes(path, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
+}
+
+func UtimesNano(path string, ts []Timespec) error {
+	if ts == nil {
+		err := utimensat(AT_FDCWD, path, nil, 0)
+		if err != ENOSYS {
+			return err
+		}
+		return utimes(path, nil)
+	}
+	if len(ts) != 2 {
+		return EINVAL
+	}
+	// Darwin setattrlist can set nanosecond timestamps
+	err := setattrlistTimes(path, ts, 0)
+	if err != ENOSYS {
+		return err
+	}
+	err = utimensat(AT_FDCWD, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0)
+	if err != ENOSYS {
+		return err
+	}
+	// Not as efficient as it could be because Timespec and
+	// Timeval have different types in the different OSes
+	tv := [2]Timeval{
+		NsecToTimeval(TimespecToNsec(ts[0])),
+		NsecToTimeval(TimespecToNsec(ts[1])),
+	}
+	return utimes(path, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
+}
+
+func UtimesNanoAt(dirfd int, path string, ts []Timespec, flags int) error {
+	if ts == nil {
+		return utimensat(dirfd, path, nil, flags)
+	}
+	if len(ts) != 2 {
+		return EINVAL
+	}
+	err := setattrlistTimes(path, ts, flags)
+	if err != ENOSYS {
+		return err
+	}
+	return utimensat(dirfd, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), flags)
+}
+
+//sys	futimes(fd int, timeval *[2]Timeval) (err error)
+
+func Futimes(fd int, tv []Timeval) error {
+	if tv == nil {
+		return futimes(fd, nil)
+	}
+	if len(tv) != 2 {
+		return EINVAL
+	}
+	return futimes(fd, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
+}
+
+//sys	fcntl(fd int, cmd int, arg int) (val int, err error)
+
+//sys   poll(fds *PollFd, nfds int, timeout int) (n int, err error)
+
+func Poll(fds []PollFd, timeout int) (n int, err error) {
+	if len(fds) == 0 {
+		return poll(nil, 0, timeout)
+	}
+	return poll(&fds[0], len(fds), timeout)
+}
+
+// TODO: wrap
+//	Acct(name nil-string) (err error)
+//	Gethostuuid(uuid *byte, timeout *Timespec) (err error)
+//	Ptrace(req int, pid int, addr uintptr, data int) (ret uintptr, err error)
+
+var mapper = &mmapper{
+	active: make(map[*byte][]byte),
+	mmap:   mmap,
+	munmap: munmap,
+}
+
+func Mmap(fd int, offset int64, length int, prot int, flags int) (data []byte, err error) {
+	return mapper.Mmap(fd, offset, length, prot, flags)
+}
+
+func Munmap(b []byte) (err error) {
+	return mapper.Munmap(b)
+}
+
+//sys	Madvise(b []byte, behav int) (err error)
+//sys	Mlock(b []byte) (err error)
+//sys	Mlockall(flags int) (err error)
+//sys	Mprotect(b []byte, prot int) (err error)
+//sys	Msync(b []byte, flags int) (err error)
+//sys	Munlock(b []byte) (err error)
+//sys	Munlockall() (err error)

vendor/golang.org/x/sys/unix/syscall_darwin.go

@@ -0,0 +1,700 @@
+// Copyright 2009,2010 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Darwin system calls.
+// This file is compiled as ordinary Go code,
+// but it is also input to mksyscall,
+// which parses the //sys lines and generates system call stubs.
+// Note that sometimes we use a lowercase //sys name and wrap
+// it in our own nicer implementation, either here or in
+// syscall_bsd.go or syscall_unix.go.
+
+package unix
+
+import (
+	"errors"
+	"syscall"
+	"unsafe"
+)
+
+const ImplementsGetwd = true
+
+func Getwd() (string, error) {
+	buf := make([]byte, 2048)
+	attrs, err := getAttrList(".", attrList{CommonAttr: attrCmnFullpath}, buf, 0)
+	if err == nil && len(attrs) == 1 && len(attrs[0]) >= 2 {
+		wd := string(attrs[0])
+		// Sanity check that it's an absolute path and ends
+		// in a null byte, which we then strip.
+		if wd[0] == '/' && wd[len(wd)-1] == 0 {
+			return wd[:len(wd)-1], nil
+		}
+	}
+	// If pkg/os/getwd.go gets ENOTSUP, it will fall back to the
+	// slow algorithm.
+	return "", ENOTSUP
+}
+
+// SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets.
+type SockaddrDatalink struct {
+	Len    uint8
+	Family uint8
+	Index  uint16
+	Type   uint8
+	Nlen   uint8
+	Alen   uint8
+	Slen   uint8
+	Data   [12]int8
+	raw    RawSockaddrDatalink
+}
+
+// Translate "kern.hostname" to []_C_int{0,1,2,3}.
+func nametomib(name string) (mib []_C_int, err error) {
+	const siz = unsafe.Sizeof(mib[0])
+
+	// NOTE(rsc): It seems strange to set the buffer to have
+	// size CTL_MAXNAME+2 but use only CTL_MAXNAME
+	// as the size. I don't know why the +2 is here, but the
+	// kernel uses +2 for its own implementation of this function.
+	// I am scared that if we don't include the +2 here, the kernel
+	// will silently write 2 words farther than we specify
+	// and we'll get memory corruption.
+	var buf [CTL_MAXNAME + 2]_C_int
+	n := uintptr(CTL_MAXNAME) * siz
+
+	p := (*byte)(unsafe.Pointer(&buf[0]))
+	bytes, err := ByteSliceFromString(name)
+	if err != nil {
+		return nil, err
+	}
+
+	// Magic sysctl: "setting" 0.3 to a string name
+	// lets you read back the array of integers form.
+	if err = sysctl([]_C_int{0, 3}, p, &n, &bytes[0], uintptr(len(name))); err != nil {
+		return nil, err
+	}
+	return buf[0 : n/siz], nil
+}
+
+//sys   ptrace(request int, pid int, addr uintptr, data uintptr) (err error)
+func PtraceAttach(pid int) (err error) { return ptrace(PT_ATTACH, pid, 0, 0) }
+func PtraceDetach(pid int) (err error) { return ptrace(PT_DETACH, pid, 0, 0) }
+
+const (
+	attrBitMapCount = 5
+	attrCmnFullpath = 0x08000000
+)
+
+type attrList struct {
+	bitmapCount uint16
+	_           uint16
+	CommonAttr  uint32
+	VolAttr     uint32
+	DirAttr     uint32
+	FileAttr    uint32
+	Forkattr    uint32
+}
+
+func getAttrList(path string, attrList attrList, attrBuf []byte, options uint) (attrs [][]byte, err error) {
+	if len(attrBuf) < 4 {
+		return nil, errors.New("attrBuf too small")
+	}
+	attrList.bitmapCount = attrBitMapCount
+
+	var _p0 *byte
+	_p0, err = BytePtrFromString(path)
+	if err != nil {
+		return nil, err
+	}
+
+	_, _, e1 := Syscall6(
+		SYS_GETATTRLIST,
+		uintptr(unsafe.Pointer(_p0)),
+		uintptr(unsafe.Pointer(&attrList)),
+		uintptr(unsafe.Pointer(&attrBuf[0])),
+		uintptr(len(attrBuf)),
+		uintptr(options),
+		0,
+	)
+	if e1 != 0 {
+		return nil, e1
+	}
+	size := *(*uint32)(unsafe.Pointer(&attrBuf[0]))
+
+	// dat is the section of attrBuf that contains valid data,
+	// without the 4 byte length header. All attribute offsets
+	// are relative to dat.
+	dat := attrBuf
+	if int(size) < len(attrBuf) {
+		dat = dat[:size]
+	}
+	dat = dat[4:] // remove length prefix
+
+	for i := uint32(0); int(i) < len(dat); {
+		header := dat[i:]
+		if len(header) < 8 {
+			return attrs, errors.New("truncated attribute header")
+		}
+		datOff := *(*int32)(unsafe.Pointer(&header[0]))
+		attrLen := *(*uint32)(unsafe.Pointer(&header[4]))
+		if datOff < 0 || uint32(datOff)+attrLen > uint32(len(dat)) {
+			return attrs, errors.New("truncated results; attrBuf too small")
+		}
+		end := uint32(datOff) + attrLen
+		attrs = append(attrs, dat[datOff:end])
+		i = end
+		if r := i % 4; r != 0 {
+			i += (4 - r)
+		}
+	}
+	return
+}
+
+//sysnb pipe() (r int, w int, err error)
+
+func Pipe(p []int) (err error) {
+	if len(p) != 2 {
+		return EINVAL
+	}
+	p[0], p[1], err = pipe()
+	return
+}
+
+func Getfsstat(buf []Statfs_t, flags int) (n int, err error) {
+	var _p0 unsafe.Pointer
+	var bufsize uintptr
+	if len(buf) > 0 {
+		_p0 = unsafe.Pointer(&buf[0])
+		bufsize = unsafe.Sizeof(Statfs_t{}) * uintptr(len(buf))
+	}
+	r0, _, e1 := Syscall(SYS_GETFSSTAT64, uintptr(_p0), bufsize, uintptr(flags))
+	n = int(r0)
+	if e1 != 0 {
+		err = e1
+	}
+	return
+}
+
+func xattrPointer(dest []byte) *byte {
+	// It's only when dest is set to NULL that the OS X implementations of
+	// getxattr() and listxattr() return the current sizes of the named attributes.
+	// An empty byte array is not sufficient. To maintain the same behaviour as the
+	// linux implementation, we wrap around the system calls and pass in NULL when
+	// dest is empty.
+	var destp *byte
+	if len(dest) > 0 {
+		destp = &dest[0]
+	}
+	return destp
+}
+
+//sys	getxattr(path string, attr string, dest *byte, size int, position uint32, options int) (sz int, err error)
+
+func Getxattr(path string, attr string, dest []byte) (sz int, err error) {
+	return getxattr(path, attr, xattrPointer(dest), len(dest), 0, 0)
+}
+
+func Lgetxattr(link string, attr string, dest []byte) (sz int, err error) {
+	return getxattr(link, attr, xattrPointer(dest), len(dest), 0, XATTR_NOFOLLOW)
+}
+
+//sys	fgetxattr(fd int, attr string, dest *byte, size int, position uint32, options int) (sz int, err error)
+
+func Fgetxattr(fd int, attr string, dest []byte) (sz int, err error) {
+	return fgetxattr(fd, attr, xattrPointer(dest), len(dest), 0, 0)
+}
+
+//sys	setxattr(path string, attr string, data *byte, size int, position uint32, options int) (err error)
+
+func Setxattr(path string, attr string, data []byte, flags int) (err error) {
+	// The parameters for the OS X implementation vary slightly compared to the
+	// linux system call, specifically the position parameter:
+	//
+	//  linux:
+	//      int setxattr(
+	//          const char *path,
+	//          const char *name,
+	//          const void *value,
+	//          size_t size,
+	//          int flags
+	//      );
+	//
+	//  darwin:
+	//      int setxattr(
+	//          const char *path,
+	//          const char *name,
+	//          void *value,
+	//          size_t size,
+	//          u_int32_t position,
+	//          int options
+	//      );
+	//
+	// position specifies the offset within the extended attribute. In the
+	// current implementation, only the resource fork extended attribute makes
+	// use of this argument. For all others, position is reserved. We simply
+	// default to setting it to zero.
+	return setxattr(path, attr, xattrPointer(data), len(data), 0, flags)
+}
+
+func Lsetxattr(link string, attr string, data []byte, flags int) (err error) {
+	return setxattr(link, attr, xattrPointer(data), len(data), 0, flags|XATTR_NOFOLLOW)
+}
+
+//sys	fsetxattr(fd int, attr string, data *byte, size int, position uint32, options int) (err error)
+
+func Fsetxattr(fd int, attr string, data []byte, flags int) (err error) {
+	return fsetxattr(fd, attr, xattrPointer(data), len(data), 0, 0)
+}
+
+//sys	removexattr(path string, attr string, options int) (err error)
+
+func Removexattr(path string, attr string) (err error) {
+	// We wrap around and explicitly zero out the options provided to the OS X
+	// implementation of removexattr, we do so for interoperability with the
+	// linux variant.
+	return removexattr(path, attr, 0)
+}
+
+func Lremovexattr(link string, attr string) (err error) {
+	return removexattr(link, attr, XATTR_NOFOLLOW)
+}
+
+//sys	fremovexattr(fd int, attr string, options int) (err error)
+
+func Fremovexattr(fd int, attr string) (err error) {
+	return fremovexattr(fd, attr, 0)
+}
+
+//sys	listxattr(path string, dest *byte, size int, options int) (sz int, err error)
+
+func Listxattr(path string, dest []byte) (sz int, err error) {
+	return listxattr(path, xattrPointer(dest), len(dest), 0)
+}
+
+func Llistxattr(link string, dest []byte) (sz int, err error) {
+	return listxattr(link, xattrPointer(dest), len(dest), XATTR_NOFOLLOW)
+}
+
+//sys	flistxattr(fd int, dest *byte, size int, options int) (sz int, err error)
+
+func Flistxattr(fd int, dest []byte) (sz int, err error) {
+	return flistxattr(fd, xattrPointer(dest), len(dest), 0)
+}
+
+func setattrlistTimes(path string, times []Timespec, flags int) error {
+	_p0, err := BytePtrFromString(path)
+	if err != nil {
+		return err
+	}
+
+	var attrList attrList
+	attrList.bitmapCount = ATTR_BIT_MAP_COUNT
+	attrList.CommonAttr = ATTR_CMN_MODTIME | ATTR_CMN_ACCTIME
+
+	// order is mtime, atime: the opposite of Chtimes
+	attributes := [2]Timespec{times[1], times[0]}
+	options := 0
+	if flags&AT_SYMLINK_NOFOLLOW != 0 {
+		options |= FSOPT_NOFOLLOW
+	}
+	_, _, e1 := Syscall6(
+		SYS_SETATTRLIST,
+		uintptr(unsafe.Pointer(_p0)),
+		uintptr(unsafe.Pointer(&attrList)),
+		uintptr(unsafe.Pointer(&attributes)),
+		uintptr(unsafe.Sizeof(attributes)),
+		uintptr(options),
+		0,
+	)
+	if e1 != 0 {
+		return e1
+	}
+	return nil
+}
+
+func utimensat(dirfd int, path string, times *[2]Timespec, flags int) error {
+	// Darwin doesn't support SYS_UTIMENSAT
+	return ENOSYS
+}
+
+/*
+ * Wrapped
+ */
+
+//sys	kill(pid int, signum int, posix int) (err error)
+
+func Kill(pid int, signum syscall.Signal) (err error) { return kill(pid, int(signum), 1) }
+
+//sys	ioctl(fd int, req uint, arg uintptr) (err error)
+
+// ioctl itself should not be exposed directly, but additional get/set
+// functions for specific types are permissible.
+
+// IoctlSetInt performs an ioctl operation which sets an integer value
+// on fd, using the specified request number.
+func IoctlSetInt(fd int, req uint, value int) error {
+	return ioctl(fd, req, uintptr(value))
+}
+
+func ioctlSetWinsize(fd int, req uint, value *Winsize) error {
+	return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
+}
+
+func ioctlSetTermios(fd int, req uint, value *Termios) error {
+	return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
+}
+
+// IoctlGetInt performs an ioctl operation which gets an integer value
+// from fd, using the specified request number.
+func IoctlGetInt(fd int, req uint) (int, error) {
+	var value int
+	err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
+	return value, err
+}
+
+func IoctlGetWinsize(fd int, req uint) (*Winsize, error) {
+	var value Winsize
+	err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
+	return &value, err
+}
+
+func IoctlGetTermios(fd int, req uint) (*Termios, error) {
+	var value Termios
+	err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
+	return &value, err
+}
+
+func Uname(uname *Utsname) error {
+	mib := []_C_int{CTL_KERN, KERN_OSTYPE}
+	n := unsafe.Sizeof(uname.Sysname)
+	if err := sysctl(mib, &uname.Sysname[0], &n, nil, 0); err != nil {
+		return err
+	}
+
+	mib = []_C_int{CTL_KERN, KERN_HOSTNAME}
+	n = unsafe.Sizeof(uname.Nodename)
+	if err := sysctl(mib, &uname.Nodename[0], &n, nil, 0); err != nil {
+		return err
+	}
+
+	mib = []_C_int{CTL_KERN, KERN_OSRELEASE}
+	n = unsafe.Sizeof(uname.Release)
+	if err := sysctl(mib, &uname.Release[0], &n, nil, 0); err != nil {
+		return err
+	}
+
+	mib = []_C_int{CTL_KERN, KERN_VERSION}
+	n = unsafe.Sizeof(uname.Version)
+	if err := sysctl(mib, &uname.Version[0], &n, nil, 0); err != nil {
+		return err
+	}
+
+	// The version might have newlines or tabs in it, convert them to
+	// spaces.
+	for i, b := range uname.Version {
+		if b == '\n' || b == '\t' {
+			if i == len(uname.Version)-1 {
+				uname.Version[i] = 0
+			} else {
+				uname.Version[i] = ' '
+			}
+		}
+	}
+
+	mib = []_C_int{CTL_HW, HW_MACHINE}
+	n = unsafe.Sizeof(uname.Machine)
+	if err := sysctl(mib, &uname.Machine[0], &n, nil, 0); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+/*
+ * Exposed directly
+ */
+//sys	Access(path string, mode uint32) (err error)
+//sys	Adjtime(delta *Timeval, olddelta *Timeval) (err error)
+//sys	Chdir(path string) (err error)
+//sys	Chflags(path string, flags int) (err error)
+//sys	Chmod(path string, mode uint32) (err error)
+//sys	Chown(path string, uid int, gid int) (err error)
+//sys	Chroot(path string) (err error)
+//sys	Close(fd int) (err error)
+//sys	Dup(fd int) (nfd int, err error)
+//sys	Dup2(from int, to int) (err error)
+//sys	Exchangedata(path1 string, path2 string, options int) (err error)
+//sys	Exit(code int)
+//sys	Faccessat(dirfd int, path string, mode uint32, flags int) (err error)
+//sys	Fchdir(fd int) (err error)
+//sys	Fchflags(fd int, flags int) (err error)
+//sys	Fchmod(fd int, mode uint32) (err error)
+//sys	Fchmodat(dirfd int, path string, mode uint32, flags int) (err error)
+//sys	Fchown(fd int, uid int, gid int) (err error)
+//sys	Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error)
+//sys	Flock(fd int, how int) (err error)
+//sys	Fpathconf(fd int, name int) (val int, err error)
+//sys	Fstat(fd int, stat *Stat_t) (err error) = SYS_FSTAT64
+//sys	Fstatat(fd int, path string, stat *Stat_t, flags int) (err error) = SYS_FSTATAT64
+//sys	Fstatfs(fd int, stat *Statfs_t) (err error) = SYS_FSTATFS64
+//sys	Fsync(fd int) (err error)
+//sys	Ftruncate(fd int, length int64) (err error)
+//sys	Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) = SYS_GETDIRENTRIES64
+//sys	Getdtablesize() (size int)
+//sysnb	Getegid() (egid int)
+//sysnb	Geteuid() (uid int)
+//sysnb	Getgid() (gid int)
+//sysnb	Getpgid(pid int) (pgid int, err error)
+//sysnb	Getpgrp() (pgrp int)
+//sysnb	Getpid() (pid int)
+//sysnb	Getppid() (ppid int)
+//sys	Getpriority(which int, who int) (prio int, err error)
+//sysnb	Getrlimit(which int, lim *Rlimit) (err error)
+//sysnb	Getrusage(who int, rusage *Rusage) (err error)
+//sysnb	Getsid(pid int) (sid int, err error)
+//sysnb	Getuid() (uid int)
+//sysnb	Issetugid() (tainted bool)
+//sys	Kqueue() (fd int, err error)
+//sys	Lchown(path string, uid int, gid int) (err error)
+//sys	Link(path string, link string) (err error)
+//sys	Linkat(pathfd int, path string, linkfd int, link string, flags int) (err error)
+//sys	Listen(s int, backlog int) (err error)
+//sys	Lstat(path string, stat *Stat_t) (err error) = SYS_LSTAT64
+//sys	Mkdir(path string, mode uint32) (err error)
+//sys	Mkdirat(dirfd int, path string, mode uint32) (err error)
+//sys	Mkfifo(path string, mode uint32) (err error)
+//sys	Mknod(path string, mode uint32, dev int) (err error)
+//sys	Open(path string, mode int, perm uint32) (fd int, err error)
+//sys	Openat(dirfd int, path string, mode int, perm uint32) (fd int, err error)
+//sys	Pathconf(path string, name int) (val int, err error)
+//sys	Pread(fd int, p []byte, offset int64) (n int, err error)
+//sys	Pwrite(fd int, p []byte, offset int64) (n int, err error)
+//sys	read(fd int, p []byte) (n int, err error)
+//sys	Readlink(path string, buf []byte) (n int, err error)
+//sys	Readlinkat(dirfd int, path string, buf []byte) (n int, err error)
+//sys	Rename(from string, to string) (err error)
+//sys	Renameat(fromfd int, from string, tofd int, to string) (err error)
+//sys	Revoke(path string) (err error)
+//sys	Rmdir(path string) (err error)
+//sys	Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_LSEEK
+//sys	Select(n int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (err error)
+//sys	Setegid(egid int) (err error)
+//sysnb	Seteuid(euid int) (err error)
+//sysnb	Setgid(gid int) (err error)
+//sys	Setlogin(name string) (err error)
+//sysnb	Setpgid(pid int, pgid int) (err error)
+//sys	Setpriority(which int, who int, prio int) (err error)
+//sys	Setprivexec(flag int) (err error)
+//sysnb	Setregid(rgid int, egid int) (err error)
+//sysnb	Setreuid(ruid int, euid int) (err error)
+//sysnb	Setrlimit(which int, lim *Rlimit) (err error)
+//sysnb	Setsid() (pid int, err error)
+//sysnb	Settimeofday(tp *Timeval) (err error)
+//sysnb	Setuid(uid int) (err error)
+//sys	Stat(path string, stat *Stat_t) (err error) = SYS_STAT64
+//sys	Statfs(path string, stat *Statfs_t) (err error) = SYS_STATFS64
+//sys	Symlink(path string, link string) (err error)
+//sys	Symlinkat(oldpath string, newdirfd int, newpath string) (err error)
+//sys	Sync() (err error)
+//sys	Truncate(path string, length int64) (err error)
+//sys	Umask(newmask int) (oldmask int)
+//sys	Undelete(path string) (err error)
+//sys	Unlink(path string) (err error)
+//sys	Unlinkat(dirfd int, path string, flags int) (err error)
+//sys	Unmount(path string, flags int) (err error)
+//sys	write(fd int, p []byte) (n int, err error)
+//sys   mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error)
+//sys   munmap(addr uintptr, length uintptr) (err error)
+//sys	readlen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_READ
+//sys	writelen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_WRITE
+
+/*
+ * Unimplemented
+ */
+// Profil
+// Sigaction
+// Sigprocmask
+// Getlogin
+// Sigpending
+// Sigaltstack
+// Ioctl
+// Reboot
+// Execve
+// Vfork
+// Sbrk
+// Sstk
+// Ovadvise
+// Mincore
+// Setitimer
+// Swapon
+// Select
+// Sigsuspend
+// Readv
+// Writev
+// Nfssvc
+// Getfh
+// Quotactl
+// Mount
+// Csops
+// Waitid
+// Add_profil
+// Kdebug_trace
+// Sigreturn
+// Atsocket
+// Kqueue_from_portset_np
+// Kqueue_portset
+// Getattrlist
+// Setattrlist
+// Getdirentriesattr
+// Searchfs
+// Delete
+// Copyfile
+// Watchevent
+// Waitevent
+// Modwatch
+// Fsctl
+// Initgroups
+// Posix_spawn
+// Nfsclnt
+// Fhopen
+// Minherit
+// Semsys
+// Msgsys
+// Shmsys
+// Semctl
+// Semget
+// Semop
+// Msgctl
+// Msgget
+// Msgsnd
+// Msgrcv
+// Shmat
+// Shmctl
+// Shmdt
+// Shmget
+// Shm_open
+// Shm_unlink
+// Sem_open
+// Sem_close
+// Sem_unlink
+// Sem_wait
+// Sem_trywait
+// Sem_post
+// Sem_getvalue
+// Sem_init
+// Sem_destroy
+// Open_extended
+// Umask_extended
+// Stat_extended
+// Lstat_extended
+// Fstat_extended
+// Chmod_extended
+// Fchmod_extended
+// Access_extended
+// Settid
+// Gettid
+// Setsgroups
+// Getsgroups
+// Setwgroups
+// Getwgroups
+// Mkfifo_extended
+// Mkdir_extended
+// Identitysvc
+// Shared_region_check_np
+// Shared_region_map_np
+// __pthread_mutex_destroy
+// __pthread_mutex_init
+// __pthread_mutex_lock
+// __pthread_mutex_trylock
+// __pthread_mutex_unlock
+// __pthread_cond_init
+// __pthread_cond_destroy
+// __pthread_cond_broadcast
+// __pthread_cond_signal
+// Setsid_with_pid
+// __pthread_cond_timedwait
+// Aio_fsync
+// Aio_return
+// Aio_suspend
+// Aio_cancel
+// Aio_error
+// Aio_read
+// Aio_write
+// Lio_listio
+// __pthread_cond_wait
+// Iopolicysys
+// __pthread_kill
+// __pthread_sigmask
+// __sigwait
+// __disable_threadsignal
+// __pthread_markcancel
+// __pthread_canceled
+// __semwait_signal
+// Proc_info
+// sendfile
+// Stat64_extended
+// Lstat64_extended
+// Fstat64_extended
+// __pthread_chdir
+// __pthread_fchdir
+// Audit
+// Auditon
+// Getauid
+// Setauid
+// Getaudit
+// Setaudit
+// Getaudit_addr
+// Setaudit_addr
+// Auditctl
+// Bsdthread_create
+// Bsdthread_terminate
+// Stack_snapshot
+// Bsdthread_register
+// Workq_open
+// Workq_ops
+// __mac_execve
+// __mac_syscall
+// __mac_get_file
+// __mac_set_file
+// __mac_get_link
+// __mac_set_link
+// __mac_get_proc
+// __mac_set_proc
+// __mac_get_fd
+// __mac_set_fd
+// __mac_get_pid
+// __mac_get_lcid
+// __mac_get_lctx
+// __mac_set_lctx
+// Setlcid
+// Read_nocancel
+// Write_nocancel
+// Open_nocancel
+// Close_nocancel
+// Wait4_nocancel
+// Recvmsg_nocancel
+// Sendmsg_nocancel
+// Recvfrom_nocancel
+// Accept_nocancel
+// Fcntl_nocancel
+// Select_nocancel
+// Fsync_nocancel
+// Connect_nocancel
+// Sigsuspend_nocancel
+// Readv_nocancel
+// Writev_nocancel
+// Sendto_nocancel
+// Pread_nocancel
+// Pwrite_nocancel
+// Waitid_nocancel
+// Poll_nocancel
+// Msgsnd_nocancel
+// Msgrcv_nocancel
+// Sem_wait_nocancel
+// Aio_suspend_nocancel
+// __sigwait_nocancel
+// __semwait_signal_nocancel
+// __mac_mount
+// __mac_get_mount
+// __mac_getfsstat

vendor/golang.org/x/sys/unix/syscall_darwin_386.go

@@ -0,0 +1,68 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build 386,darwin
+
+package unix
+
+import (
+	"syscall"
+	"unsafe"
+)
+
+func setTimespec(sec, nsec int64) Timespec {
+	return Timespec{Sec: int32(sec), Nsec: int32(nsec)}
+}
+
+func setTimeval(sec, usec int64) Timeval {
+	return Timeval{Sec: int32(sec), Usec: int32(usec)}
+}
+
+//sysnb	gettimeofday(tp *Timeval) (sec int32, usec int32, err error)
+func Gettimeofday(tv *Timeval) (err error) {
+	// The tv passed to gettimeofday must be non-nil
+	// but is otherwise unused. The answers come back
+	// in the two registers.
+	sec, usec, err := gettimeofday(tv)
+	tv.Sec = int32(sec)
+	tv.Usec = int32(usec)
+	return err
+}
+
+func SetKevent(k *Kevent_t, fd, mode, flags int) {
+	k.Ident = uint32(fd)
+	k.Filter = int16(mode)
+	k.Flags = uint16(flags)
+}
+
+func (iov *Iovec) SetLen(length int) {
+	iov.Len = uint32(length)
+}
+
+func (msghdr *Msghdr) SetControllen(length int) {
+	msghdr.Controllen = uint32(length)
+}
+
+func (cmsg *Cmsghdr) SetLen(length int) {
+	cmsg.Len = uint32(length)
+}
+
+func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
+	var length = uint64(count)
+
+	_, _, e1 := Syscall9(SYS_SENDFILE, uintptr(infd), uintptr(outfd), uintptr(*offset), uintptr(*offset>>32), uintptr(unsafe.Pointer(&length)), 0, 0, 0, 0)
+
+	written = int(length)
+
+	if e1 != 0 {
+		err = e1
+	}
+	return
+}
+
+func Syscall9(num, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno)
+
+// SYS___SYSCTL is used by syscall_bsd.go for all BSDs, but in modern versions
+// of darwin/386 the syscall is called sysctl instead of __sysctl.
+const SYS___SYSCTL = SYS_SYSCTL

vendor/golang.org/x/sys/unix/syscall_darwin_amd64.go

@@ -0,0 +1,68 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build amd64,darwin
+
+package unix
+
+import (
+	"syscall"
+	"unsafe"
+)
+
+func setTimespec(sec, nsec int64) Timespec {
+	return Timespec{Sec: sec, Nsec: nsec}
+}
+
+func setTimeval(sec, usec int64) Timeval {
+	return Timeval{Sec: sec, Usec: int32(usec)}
+}
+
+//sysnb	gettimeofday(tp *Timeval) (sec int64, usec int32, err error)
+func Gettimeofday(tv *Timeval) (err error) {
+	// The tv passed to gettimeofday must be non-nil
+	// but is otherwise unused. The answers come back
+	// in the two registers.
+	sec, usec, err := gettimeofday(tv)
+	tv.Sec = sec
+	tv.Usec = usec
+	return err
+}
+
+func SetKevent(k *Kevent_t, fd, mode, flags int) {
+	k.Ident = uint64(fd)
+	k.Filter = int16(mode)
+	k.Flags = uint16(flags)
+}
+
+func (iov *Iovec) SetLen(length int) {
+	iov.Len = uint64(length)
+}
+
+func (msghdr *Msghdr) SetControllen(length int) {
+	msghdr.Controllen = uint32(length)
+}
+
+func (cmsg *Cmsghdr) SetLen(length int) {
+	cmsg.Len = uint32(length)
+}
+
+func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
+	var length = uint64(count)
+
+	_, _, e1 := Syscall6(SYS_SENDFILE, uintptr(infd), uintptr(outfd), uintptr(*offset), uintptr(unsafe.Pointer(&length)), 0, 0)
+
+	written = int(length)
+
+	if e1 != 0 {
+		err = e1
+	}
+	return
+}
+
+func Syscall9(num, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno)
+
+// SYS___SYSCTL is used by syscall_bsd.go for all BSDs, but in modern versions
+// of darwin/amd64 the syscall is called sysctl instead of __sysctl.
+const SYS___SYSCTL = SYS_SYSCTL

vendor/golang.org/x/sys/unix/syscall_darwin_arm.go

@@ -0,0 +1,66 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package unix
+
+import (
+	"syscall"
+	"unsafe"
+)
+
+func setTimespec(sec, nsec int64) Timespec {
+	return Timespec{Sec: int32(sec), Nsec: int32(nsec)}
+}
+
+func setTimeval(sec, usec int64) Timeval {
+	return Timeval{Sec: int32(sec), Usec: int32(usec)}
+}
+
+//sysnb	gettimeofday(tp *Timeval) (sec int32, usec int32, err error)
+func Gettimeofday(tv *Timeval) (err error) {
+	// The tv passed to gettimeofday must be non-nil
+	// but is otherwise unused. The answers come back
+	// in the two registers.
+	sec, usec, err := gettimeofday(tv)
+	tv.Sec = int32(sec)
+	tv.Usec = int32(usec)
+	return err
+}
+
+func SetKevent(k *Kevent_t, fd, mode, flags int) {
+	k.Ident = uint32(fd)
+	k.Filter = int16(mode)
+	k.Flags = uint16(flags)
+}
+
+func (iov *Iovec) SetLen(length int) {
+	iov.Len = uint32(length)
+}
+
+func (msghdr *Msghdr) SetControllen(length int) {
+	msghdr.Controllen = uint32(length)
+}
+
+func (cmsg *Cmsghdr) SetLen(length int) {
+	cmsg.Len = uint32(length)
+}
+
+func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
+	var length = uint64(count)
+
+	_, _, e1 := Syscall9(SYS_SENDFILE, uintptr(infd), uintptr(outfd), uintptr(*offset), uintptr(*offset>>32), uintptr(unsafe.Pointer(&length)), 0, 0, 0, 0)
+
+	written = int(length)
+
+	if e1 != 0 {
+		err = e1
+	}
+	return
+}
+
+func Syscall9(num, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno) // sic
+
+// SYS___SYSCTL is used by syscall_bsd.go for all BSDs, but in modern versions
+// of darwin/arm the syscall is called sysctl instead of __sysctl.
+const SYS___SYSCTL = SYS_SYSCTL

vendor/golang.org/x/sys/unix/syscall_darwin_arm64.go

@@ -0,0 +1,68 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build arm64,darwin
+
+package unix
+
+import (
+	"syscall"
+	"unsafe"
+)
+
+func setTimespec(sec, nsec int64) Timespec {
+	return Timespec{Sec: sec, Nsec: nsec}
+}
+
+func setTimeval(sec, usec int64) Timeval {
+	return Timeval{Sec: sec, Usec: int32(usec)}
+}
+
+//sysnb	gettimeofday(tp *Timeval) (sec int64, usec int32, err error)
+func Gettimeofday(tv *Timeval) (err error) {
+	// The tv passed to gettimeofday must be non-nil
+	// but is otherwise unused. The answers come back
+	// in the two registers.
+	sec, usec, err := gettimeofday(tv)
+	tv.Sec = sec
+	tv.Usec = usec
+	return err
+}
+
+func SetKevent(k *Kevent_t, fd, mode, flags int) {
+	k.Ident = uint64(fd)
+	k.Filter = int16(mode)
+	k.Flags = uint16(flags)
+}
+
+func (iov *Iovec) SetLen(length int) {
+	iov.Len = uint64(length)
+}
+
+func (msghdr *Msghdr) SetControllen(length int) {
+	msghdr.Controllen = uint32(length)
+}
+
+func (cmsg *Cmsghdr) SetLen(length int) {
+	cmsg.Len = uint32(length)
+}
+
+func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
+	var length = uint64(count)
+
+	_, _, e1 := Syscall6(SYS_SENDFILE, uintptr(infd), uintptr(outfd), uintptr(*offset), uintptr(unsafe.Pointer(&length)), 0, 0)
+
+	written = int(length)
+
+	if e1 != 0 {
+		err = e1
+	}
+	return
+}
+
+func Syscall9(num, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno) // sic
+
+// SYS___SYSCTL is used by syscall_bsd.go for all BSDs, but in modern versions
+// of darwin/arm64 the syscall is called sysctl instead of __sysctl.
+const SYS___SYSCTL = SYS_SYSCTL

vendor/golang.org/x/sys/unix/syscall_dragonfly.go

@@ -0,0 +1,523 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// DragonFly BSD system calls.
+// This file is compiled as ordinary Go code,
+// but it is also input to mksyscall,
+// which parses the //sys lines and generates system call stubs.
+// Note that sometimes we use a lowercase //sys name and wrap
+// it in our own nicer implementation, either here or in
+// syscall_bsd.go or syscall_unix.go.
+
+package unix
+
+import "unsafe"
+
+// SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets.
+type SockaddrDatalink struct {
+	Len    uint8
+	Family uint8
+	Index  uint16
+	Type   uint8
+	Nlen   uint8
+	Alen   uint8
+	Slen   uint8
+	Data   [12]int8
+	Rcf    uint16
+	Route  [16]uint16
+	raw    RawSockaddrDatalink
+}
+
+// Translate "kern.hostname" to []_C_int{0,1,2,3}.
+func nametomib(name string) (mib []_C_int, err error) {
+	const siz = unsafe.Sizeof(mib[0])
+
+	// NOTE(rsc): It seems strange to set the buffer to have
+	// size CTL_MAXNAME+2 but use only CTL_MAXNAME
+	// as the size. I don't know why the +2 is here, but the
+	// kernel uses +2 for its own implementation of this function.
+	// I am scared that if we don't include the +2 here, the kernel
+	// will silently write 2 words farther than we specify
+	// and we'll get memory corruption.
+	var buf [CTL_MAXNAME + 2]_C_int
+	n := uintptr(CTL_MAXNAME) * siz
+
+	p := (*byte)(unsafe.Pointer(&buf[0]))
+	bytes, err := ByteSliceFromString(name)
+	if err != nil {
+		return nil, err
+	}
+
+	// Magic sysctl: "setting" 0.3 to a string name
+	// lets you read back the array of integers form.
+	if err = sysctl([]_C_int{0, 3}, p, &n, &bytes[0], uintptr(len(name))); err != nil {
+		return nil, err
+	}
+	return buf[0 : n/siz], nil
+}
+
+//sysnb pipe() (r int, w int, err error)
+
+func Pipe(p []int) (err error) {
+	if len(p) != 2 {
+		return EINVAL
+	}
+	p[0], p[1], err = pipe()
+	return
+}
+
+//sys	extpread(fd int, p []byte, flags int, offset int64) (n int, err error)
+func Pread(fd int, p []byte, offset int64) (n int, err error) {
+	return extpread(fd, p, 0, offset)
+}
+
+//sys	extpwrite(fd int, p []byte, flags int, offset int64) (n int, err error)
+func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
+	return extpwrite(fd, p, 0, offset)
+}
+
+func Accept4(fd, flags int) (nfd int, sa Sockaddr, err error) {
+	var rsa RawSockaddrAny
+	var len _Socklen = SizeofSockaddrAny
+	nfd, err = accept4(fd, &rsa, &len, flags)
+	if err != nil {
+		return
+	}
+	if len > SizeofSockaddrAny {
+		panic("RawSockaddrAny too small")
+	}
+	sa, err = anyToSockaddr(fd, &rsa)
+	if err != nil {
+		Close(nfd)
+		nfd = 0
+	}
+	return
+}
+
+const ImplementsGetwd = true
+
+//sys	Getcwd(buf []byte) (n int, err error) = SYS___GETCWD
+
+func Getwd() (string, error) {
+	var buf [PathMax]byte
+	_, err := Getcwd(buf[0:])
+	if err != nil {
+		return "", err
+	}
+	n := clen(buf[:])
+	if n < 1 {
+		return "", EINVAL
+	}
+	return string(buf[:n]), nil
+}
+
+func Getfsstat(buf []Statfs_t, flags int) (n int, err error) {
+	var _p0 unsafe.Pointer
+	var bufsize uintptr
+	if len(buf) > 0 {
+		_p0 = unsafe.Pointer(&buf[0])
+		bufsize = unsafe.Sizeof(Statfs_t{}) * uintptr(len(buf))
+	}
+	r0, _, e1 := Syscall(SYS_GETFSSTAT, uintptr(_p0), bufsize, uintptr(flags))
+	n = int(r0)
+	if e1 != 0 {
+		err = e1
+	}
+	return
+}
+
+func setattrlistTimes(path string, times []Timespec, flags int) error {
+	// used on Darwin for UtimesNano
+	return ENOSYS
+}
+
+//sys	ioctl(fd int, req uint, arg uintptr) (err error)
+
+// ioctl itself should not be exposed directly, but additional get/set
+// functions for specific types are permissible.
+
+// IoctlSetInt performs an ioctl operation which sets an integer value
+// on fd, using the specified request number.
+func IoctlSetInt(fd int, req uint, value int) error {
+	return ioctl(fd, req, uintptr(value))
+}
+
+func ioctlSetWinsize(fd int, req uint, value *Winsize) error {
+	return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
+}
+
+func ioctlSetTermios(fd int, req uint, value *Termios) error {
+	return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
+}
+
+// IoctlGetInt performs an ioctl operation which gets an integer value
+// from fd, using the specified request number.
+func IoctlGetInt(fd int, req uint) (int, error) {
+	var value int
+	err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
+	return value, err
+}
+
+func IoctlGetWinsize(fd int, req uint) (*Winsize, error) {
+	var value Winsize
+	err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
+	return &value, err
+}
+
+func IoctlGetTermios(fd int, req uint) (*Termios, error) {
+	var value Termios
+	err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
+	return &value, err
+}
+
+func sysctlUname(mib []_C_int, old *byte, oldlen *uintptr) error {
+	err := sysctl(mib, old, oldlen, nil, 0)
+	if err != nil {
+		// Utsname members on Dragonfly are only 32 bytes and
+		// the syscall returns ENOMEM in case the actual value
+		// is longer.
+		if err == ENOMEM {
+			err = nil
+		}
+	}
+	return err
+}
+
+func Uname(uname *Utsname) error {
+	mib := []_C_int{CTL_KERN, KERN_OSTYPE}
+	n := unsafe.Sizeof(uname.Sysname)
+	if err := sysctlUname(mib, &uname.Sysname[0], &n); err != nil {
+		return err
+	}
+	uname.Sysname[unsafe.Sizeof(uname.Sysname)-1] = 0
+
+	mib = []_C_int{CTL_KERN, KERN_HOSTNAME}
+	n = unsafe.Sizeof(uname.Nodename)
+	if err := sysctlUname(mib, &uname.Nodename[0], &n); err != nil {
+		return err
+	}
+	uname.Nodename[unsafe.Sizeof(uname.Nodename)-1] = 0
+
+	mib = []_C_int{CTL_KERN, KERN_OSRELEASE}
+	n = unsafe.Sizeof(uname.Release)
+	if err := sysctlUname(mib, &uname.Release[0], &n); err != nil {
+		return err
+	}
+	uname.Release[unsafe.Sizeof(uname.Release)-1] = 0
+
+	mib = []_C_int{CTL_KERN, KERN_VERSION}
+	n = unsafe.Sizeof(uname.Version)
+	if err := sysctlUname(mib, &uname.Version[0], &n); err != nil {
+		return err
+	}
+
+	// The version might have newlines or tabs in it, convert them to
+	// spaces.
+	for i, b := range uname.Version {
+		if b == '\n' || b == '\t' {
+			if i == len(uname.Version)-1 {
+				uname.Version[i] = 0
+			} else {
+				uname.Version[i] = ' '
+			}
+		}
+	}
+
+	mib = []_C_int{CTL_HW, HW_MACHINE}
+	n = unsafe.Sizeof(uname.Machine)
+	if err := sysctlUname(mib, &uname.Machine[0], &n); err != nil {
+		return err
+	}
+	uname.Machine[unsafe.Sizeof(uname.Machine)-1] = 0
+
+	return nil
+}
+
+/*
+ * Exposed directly
+ */
+//sys	Access(path string, mode uint32) (err error)
+//sys	Adjtime(delta *Timeval, olddelta *Timeval) (err error)
+//sys	Chdir(path string) (err error)
+//sys	Chflags(path string, flags int) (err error)
+//sys	Chmod(path string, mode uint32) (err error)
+//sys	Chown(path string, uid int, gid int) (err error)
+//sys	Chroot(path string) (err error)
+//sys	Close(fd int) (err error)
+//sys	Dup(fd int) (nfd int, err error)
+//sys	Dup2(from int, to int) (err error)
+//sys	Exit(code int)
+//sys	Fchdir(fd int) (err error)
+//sys	Fchflags(fd int, flags int) (err error)
+//sys	Fchmod(fd int, mode uint32) (err error)
+//sys	Fchmodat(dirfd int, path string, mode uint32, flags int) (err error)
+//sys	Fchown(fd int, uid int, gid int) (err error)
+//sys	Flock(fd int, how int) (err error)
+//sys	Fpathconf(fd int, name int) (val int, err error)
+//sys	Fstat(fd int, stat *Stat_t) (err error)
+//sys	Fstatat(fd int, path string, stat *Stat_t, flags int) (err error)
+//sys	Fstatfs(fd int, stat *Statfs_t) (err error)
+//sys	Fsync(fd int) (err error)
+//sys	Ftruncate(fd int, length int64) (err error)
+//sys	Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error)
+//sys	Getdtablesize() (size int)
+//sysnb	Getegid() (egid int)
+//sysnb	Geteuid() (uid int)
+//sysnb	Getgid() (gid int)
+//sysnb	Getpgid(pid int) (pgid int, err error)
+//sysnb	Getpgrp() (pgrp int)
+//sysnb	Getpid() (pid int)
+//sysnb	Getppid() (ppid int)
+//sys	Getpriority(which int, who int) (prio int, err error)
+//sysnb	Getrlimit(which int, lim *Rlimit) (err error)
+//sysnb	Getrusage(who int, rusage *Rusage) (err error)
+//sysnb	Getsid(pid int) (sid int, err error)
+//sysnb	Gettimeofday(tv *Timeval) (err error)
+//sysnb	Getuid() (uid int)
+//sys	Issetugid() (tainted bool)
+//sys	Kill(pid int, signum syscall.Signal) (err error)
+//sys	Kqueue() (fd int, err error)
+//sys	Lchown(path string, uid int, gid int) (err error)
+//sys	Link(path string, link string) (err error)
+//sys	Listen(s int, backlog int) (err error)
+//sys	Lstat(path string, stat *Stat_t) (err error)
+//sys	Mkdir(path string, mode uint32) (err error)
+//sys	Mkfifo(path string, mode uint32) (err error)
+//sys	Mknod(path string, mode uint32, dev int) (err error)
+//sys	Nanosleep(time *Timespec, leftover *Timespec) (err error)
+//sys	Open(path string, mode int, perm uint32) (fd int, err error)
+//sys	Pathconf(path string, name int) (val int, err error)
+//sys	read(fd int, p []byte) (n int, err error)
+//sys	Readlink(path string, buf []byte) (n int, err error)
+//sys	Rename(from string, to string) (err error)
+//sys	Revoke(path string) (err error)
+//sys	Rmdir(path string) (err error)
+//sys	Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_LSEEK
+//sys	Select(n int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (err error)
+//sysnb	Setegid(egid int) (err error)
+//sysnb	Seteuid(euid int) (err error)
+//sysnb	Setgid(gid int) (err error)
+//sys	Setlogin(name string) (err error)
+//sysnb	Setpgid(pid int, pgid int) (err error)
+//sys	Setpriority(which int, who int, prio int) (err error)
+//sysnb	Setregid(rgid int, egid int) (err error)
+//sysnb	Setreuid(ruid int, euid int) (err error)
+//sysnb	Setresgid(rgid int, egid int, sgid int) (err error)
+//sysnb	Setresuid(ruid int, euid int, suid int) (err error)
+//sysnb	Setrlimit(which int, lim *Rlimit) (err error)
+//sysnb	Setsid() (pid int, err error)
+//sysnb	Settimeofday(tp *Timeval) (err error)
+//sysnb	Setuid(uid int) (err error)
+//sys	Stat(path string, stat *Stat_t) (err error)
+//sys	Statfs(path string, stat *Statfs_t) (err error)
+//sys	Symlink(path string, link string) (err error)
+//sys	Sync() (err error)
+//sys	Truncate(path string, length int64) (err error)
+//sys	Umask(newmask int) (oldmask int)
+//sys	Undelete(path string) (err error)
+//sys	Unlink(path string) (err error)
+//sys	Unmount(path string, flags int) (err error)
+//sys	write(fd int, p []byte) (n int, err error)
+//sys   mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error)
+//sys   munmap(addr uintptr, length uintptr) (err error)
+//sys	readlen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_READ
+//sys	writelen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_WRITE
+//sys	accept4(fd int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (nfd int, err error)
+//sys	utimensat(dirfd int, path string, times *[2]Timespec, flags int) (err error)
+
+/*
+ * Unimplemented
+ * TODO(jsing): Update this list for DragonFly.
+ */
+// Profil
+// Sigaction
+// Sigprocmask
+// Getlogin
+// Sigpending
+// Sigaltstack
+// Reboot
+// Execve
+// Vfork
+// Sbrk
+// Sstk
+// Ovadvise
+// Mincore
+// Setitimer
+// Swapon
+// Select
+// Sigsuspend
+// Readv
+// Writev
+// Nfssvc
+// Getfh
+// Quotactl
+// Mount
+// Csops
+// Waitid
+// Add_profil
+// Kdebug_trace
+// Sigreturn
+// Atsocket
+// Kqueue_from_portset_np
+// Kqueue_portset
+// Getattrlist
+// Setattrlist
+// Getdirentriesattr
+// Searchfs
+// Delete
+// Copyfile
+// Watchevent
+// Waitevent
+// Modwatch
+// Getxattr
+// Fgetxattr
+// Setxattr
+// Fsetxattr
+// Removexattr
+// Fremovexattr
+// Listxattr
+// Flistxattr
+// Fsctl
+// Initgroups
+// Posix_spawn
+// Nfsclnt
+// Fhopen
+// Minherit
+// Semsys
+// Msgsys
+// Shmsys
+// Semctl
+// Semget
+// Semop
+// Msgctl
+// Msgget
+// Msgsnd
+// Msgrcv
+// Shmat
+// Shmctl
+// Shmdt
+// Shmget
+// Shm_open
+// Shm_unlink
+// Sem_open
+// Sem_close
+// Sem_unlink
+// Sem_wait
+// Sem_trywait
+// Sem_post
+// Sem_getvalue
+// Sem_init
+// Sem_destroy
+// Open_extended
+// Umask_extended
+// Stat_extended
+// Lstat_extended
+// Fstat_extended
+// Chmod_extended
+// Fchmod_extended
+// Access_extended
+// Settid
+// Gettid
+// Setsgroups
+// Getsgroups
+// Setwgroups
+// Getwgroups
+// Mkfifo_extended
+// Mkdir_extended
+// Identitysvc
+// Shared_region_check_np
+// Shared_region_map_np
+// __pthread_mutex_destroy
+// __pthread_mutex_init
+// __pthread_mutex_lock
+// __pthread_mutex_trylock
+// __pthread_mutex_unlock
+// __pthread_cond_init
+// __pthread_cond_destroy
+// __pthread_cond_broadcast
+// __pthread_cond_signal
+// Setsid_with_pid
+// __pthread_cond_timedwait
+// Aio_fsync
+// Aio_return
+// Aio_suspend
+// Aio_cancel
+// Aio_error
+// Aio_read
+// Aio_write
+// Lio_listio
+// __pthread_cond_wait
+// Iopolicysys
+// __pthread_kill
+// __pthread_sigmask
+// __sigwait
+// __disable_threadsignal
+// __pthread_markcancel
+// __pthread_canceled
+// __semwait_signal
+// Proc_info
+// Stat64_extended
+// Lstat64_extended
+// Fstat64_extended
+// __pthread_chdir
+// __pthread_fchdir
+// Audit
+// Auditon
+// Getauid
+// Setauid
+// Getaudit
+// Setaudit
+// Getaudit_addr
+// Setaudit_addr
+// Auditctl
+// Bsdthread_create
+// Bsdthread_terminate
+// Stack_snapshot
+// Bsdthread_register
+// Workq_open
+// Workq_ops
+// __mac_execve
+// __mac_syscall
+// __mac_get_file
+// __mac_set_file
+// __mac_get_link
+// __mac_set_link
+// __mac_get_proc
+// __mac_set_proc
+// __mac_get_fd
+// __mac_set_fd
+// __mac_get_pid
+// __mac_get_lcid
+// __mac_get_lctx
+// __mac_set_lctx
+// Setlcid
+// Read_nocancel
+// Write_nocancel
+// Open_nocancel
+// Close_nocancel
+// Wait4_nocancel
+// Recvmsg_nocancel
+// Sendmsg_nocancel
+// Recvfrom_nocancel
+// Accept_nocancel
+// Fcntl_nocancel
+// Select_nocancel
+// Fsync_nocancel
+// Connect_nocancel
+// Sigsuspend_nocancel
+// Readv_nocancel
+// Writev_nocancel
+// Sendto_nocancel
+// Pread_nocancel
+// Pwrite_nocancel
+// Waitid_nocancel
+// Msgsnd_nocancel
+// Msgrcv_nocancel
+// Sem_wait_nocancel
+// Aio_suspend_nocancel
+// __sigwait_nocancel
+// __semwait_signal_nocancel
+// __mac_mount
+// __mac_get_mount
+// __mac_getfsstat

vendor/golang.org/x/sys/unix/syscall_dragonfly_amd64.go

@@ -0,0 +1,52 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build amd64,dragonfly
+
+package unix
+
+import (
+	"syscall"
+	"unsafe"
+)
+
+func setTimespec(sec, nsec int64) Timespec {
+	return Timespec{Sec: sec, Nsec: nsec}
+}
+
+func setTimeval(sec, usec int64) Timeval {
+	return Timeval{Sec: sec, Usec: usec}
+}
+
+func SetKevent(k *Kevent_t, fd, mode, flags int) {
+	k.Ident = uint64(fd)
+	k.Filter = int16(mode)
+	k.Flags = uint16(flags)
+}
+
+func (iov *Iovec) SetLen(length int) {
+	iov.Len = uint64(length)
+}
+
+func (msghdr *Msghdr) SetControllen(length int) {
+	msghdr.Controllen = uint32(length)
+}
+
+func (cmsg *Cmsghdr) SetLen(length int) {
+	cmsg.Len = uint32(length)
+}
+
+func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
+	var writtenOut uint64 = 0
+	_, _, e1 := Syscall9(SYS_SENDFILE, uintptr(infd), uintptr(outfd), uintptr(*offset), uintptr(count), 0, uintptr(unsafe.Pointer(&writtenOut)), 0, 0, 0)
+
+	written = int(writtenOut)
+
+	if e1 != 0 {
+		err = e1
+	}
+	return
+}
+
+func Syscall9(num, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno)

vendor/golang.org/x/sys/unix/syscall_freebsd.go

@@ -0,0 +1,535 @@
+// Copyright 2009,2010 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// FreeBSD system calls.
+// This file is compiled as ordinary Go code,
+// but it is also input to mksyscall,
+// which parses the //sys lines and generates system call stubs.
+// Note that sometimes we use a lowercase //sys name and wrap
+// it in our own nicer implementation, either here or in
+// syscall_bsd.go or syscall_unix.go.
+
+package unix
+
+import (
+	"unsafe"
+)
+
+// SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets.
+type SockaddrDatalink struct {
+	Len    uint8
+	Family uint8
+	Index  uint16
+	Type   uint8
+	Nlen   uint8
+	Alen   uint8
+	Slen   uint8
+	Data   [46]int8
+	raw    RawSockaddrDatalink
+}
+
+// Translate "kern.hostname" to []_C_int{0,1,2,3}.
+func nametomib(name string) (mib []_C_int, err error) {
+	const siz = unsafe.Sizeof(mib[0])
+
+	// NOTE(rsc): It seems strange to set the buffer to have
+	// size CTL_MAXNAME+2 but use only CTL_MAXNAME
+	// as the size. I don't know why the +2 is here, but the
+	// kernel uses +2 for its own implementation of this function.
+	// I am scared that if we don't include the +2 here, the kernel
+	// will silently write 2 words farther than we specify
+	// and we'll get memory corruption.
+	var buf [CTL_MAXNAME + 2]_C_int
+	n := uintptr(CTL_MAXNAME) * siz
+
+	p := (*byte)(unsafe.Pointer(&buf[0]))
+	bytes, err := ByteSliceFromString(name)
+	if err != nil {
+		return nil, err
+	}
+
+	// Magic sysctl: "setting" 0.3 to a string name
+	// lets you read back the array of integers form.
+	if err = sysctl([]_C_int{0, 3}, p, &n, &bytes[0], uintptr(len(name))); err != nil {
+		return nil, err
+	}
+	return buf[0 : n/siz], nil
+}
+
+func Pipe(p []int) (err error) {
+	return Pipe2(p, 0)
+}
+
+//sysnb	pipe2(p *[2]_C_int, flags int) (err error)
+
+func Pipe2(p []int, flags int) error {
+	if len(p) != 2 {
+		return EINVAL
+	}
+	var pp [2]_C_int
+	err := pipe2(&pp, flags)
+	p[0] = int(pp[0])
+	p[1] = int(pp[1])
+	return err
+}
+
+func GetsockoptIPMreqn(fd, level, opt int) (*IPMreqn, error) {
+	var value IPMreqn
+	vallen := _Socklen(SizeofIPMreqn)
+	errno := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen)
+	return &value, errno
+}
+
+func SetsockoptIPMreqn(fd, level, opt int, mreq *IPMreqn) (err error) {
+	return setsockopt(fd, level, opt, unsafe.Pointer(mreq), unsafe.Sizeof(*mreq))
+}
+
+func Accept4(fd, flags int) (nfd int, sa Sockaddr, err error) {
+	var rsa RawSockaddrAny
+	var len _Socklen = SizeofSockaddrAny
+	nfd, err = accept4(fd, &rsa, &len, flags)
+	if err != nil {
+		return
+	}
+	if len > SizeofSockaddrAny {
+		panic("RawSockaddrAny too small")
+	}
+	sa, err = anyToSockaddr(fd, &rsa)
+	if err != nil {
+		Close(nfd)
+		nfd = 0
+	}
+	return
+}
+
+const ImplementsGetwd = true
+
+//sys	Getcwd(buf []byte) (n int, err error) = SYS___GETCWD
+
+func Getwd() (string, error) {
+	var buf [PathMax]byte
+	_, err := Getcwd(buf[0:])
+	if err != nil {
+		return "", err
+	}
+	n := clen(buf[:])
+	if n < 1 {
+		return "", EINVAL
+	}
+	return string(buf[:n]), nil
+}
+
+func Getfsstat(buf []Statfs_t, flags int) (n int, err error) {
+	var _p0 unsafe.Pointer
+	var bufsize uintptr
+	if len(buf) > 0 {
+		_p0 = unsafe.Pointer(&buf[0])
+		bufsize = unsafe.Sizeof(Statfs_t{}) * uintptr(len(buf))
+	}
+	r0, _, e1 := Syscall(SYS_GETFSSTAT, uintptr(_p0), bufsize, uintptr(flags))
+	n = int(r0)
+	if e1 != 0 {
+		err = e1
+	}
+	return
+}
+
+func setattrlistTimes(path string, times []Timespec, flags int) error {
+	// used on Darwin for UtimesNano
+	return ENOSYS
+}
+
+//sys   ioctl(fd int, req uint, arg uintptr) (err error)
+
+// ioctl itself should not be exposed directly, but additional get/set
+// functions for specific types are permissible.
+
+// IoctlSetInt performs an ioctl operation which sets an integer value
+// on fd, using the specified request number.
+func IoctlSetInt(fd int, req uint, value int) error {
+	return ioctl(fd, req, uintptr(value))
+}
+
+func ioctlSetWinsize(fd int, req uint, value *Winsize) error {
+	return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
+}
+
+func ioctlSetTermios(fd int, req uint, value *Termios) error {
+	return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
+}
+
+// IoctlGetInt performs an ioctl operation which gets an integer value
+// from fd, using the specified request number.
+func IoctlGetInt(fd int, req uint) (int, error) {
+	var value int
+	err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
+	return value, err
+}
+
+func IoctlGetWinsize(fd int, req uint) (*Winsize, error) {
+	var value Winsize
+	err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
+	return &value, err
+}
+
+func IoctlGetTermios(fd int, req uint) (*Termios, error) {
+	var value Termios
+	err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
+	return &value, err
+}
+
+func Uname(uname *Utsname) error {
+	mib := []_C_int{CTL_KERN, KERN_OSTYPE}
+	n := unsafe.Sizeof(uname.Sysname)
+	if err := sysctl(mib, &uname.Sysname[0], &n, nil, 0); err != nil {
+		return err
+	}
+
+	mib = []_C_int{CTL_KERN, KERN_HOSTNAME}
+	n = unsafe.Sizeof(uname.Nodename)
+	if err := sysctl(mib, &uname.Nodename[0], &n, nil, 0); err != nil {
+		return err
+	}
+
+	mib = []_C_int{CTL_KERN, KERN_OSRELEASE}
+	n = unsafe.Sizeof(uname.Release)
+	if err := sysctl(mib, &uname.Release[0], &n, nil, 0); err != nil {
+		return err
+	}
+
+	mib = []_C_int{CTL_KERN, KERN_VERSION}
+	n = unsafe.Sizeof(uname.Version)
+	if err := sysctl(mib, &uname.Version[0], &n, nil, 0); err != nil {
+		return err
+	}
+
+	// The version might have newlines or tabs in it, convert them to
+	// spaces.
+	for i, b := range uname.Version {
+		if b == '\n' || b == '\t' {
+			if i == len(uname.Version)-1 {
+				uname.Version[i] = 0
+			} else {
+				uname.Version[i] = ' '
+			}
+		}
+	}
+
+	mib = []_C_int{CTL_HW, HW_MACHINE}
+	n = unsafe.Sizeof(uname.Machine)
+	if err := sysctl(mib, &uname.Machine[0], &n, nil, 0); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+/*
+ * Exposed directly
+ */
+//sys	Access(path string, mode uint32) (err error)
+//sys	Adjtime(delta *Timeval, olddelta *Timeval) (err error)
+//sys	CapEnter() (err error)
+//sys	capRightsGet(version int, fd int, rightsp *CapRights) (err error) = SYS___CAP_RIGHTS_GET
+//sys	capRightsLimit(fd int, rightsp *CapRights) (err error)
+//sys	Chdir(path string) (err error)
+//sys	Chflags(path string, flags int) (err error)
+//sys	Chmod(path string, mode uint32) (err error)
+//sys	Chown(path string, uid int, gid int) (err error)
+//sys	Chroot(path string) (err error)
+//sys	Close(fd int) (err error)
+//sys	Dup(fd int) (nfd int, err error)
+//sys	Dup2(from int, to int) (err error)
+//sys	Exit(code int)
+//sys	ExtattrGetFd(fd int, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error)
+//sys	ExtattrSetFd(fd int, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error)
+//sys	ExtattrDeleteFd(fd int, attrnamespace int, attrname string) (err error)
+//sys	ExtattrListFd(fd int, attrnamespace int, data uintptr, nbytes int) (ret int, err error)
+//sys	ExtattrGetFile(file string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error)
+//sys	ExtattrSetFile(file string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error)
+//sys	ExtattrDeleteFile(file string, attrnamespace int, attrname string) (err error)
+//sys	ExtattrListFile(file string, attrnamespace int, data uintptr, nbytes int) (ret int, err error)
+//sys	ExtattrGetLink(link string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error)
+//sys	ExtattrSetLink(link string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error)
+//sys	ExtattrDeleteLink(link string, attrnamespace int, attrname string) (err error)
+//sys	ExtattrListLink(link string, attrnamespace int, data uintptr, nbytes int) (ret int, err error)
+//sys	Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_POSIX_FADVISE
+//sys	Faccessat(dirfd int, path string, mode uint32, flags int) (err error)
+//sys	Fchdir(fd int) (err error)
+//sys	Fchflags(fd int, flags int) (err error)
+//sys	Fchmod(fd int, mode uint32) (err error)
+//sys	Fchmodat(dirfd int, path string, mode uint32, flags int) (err error)
+//sys	Fchown(fd int, uid int, gid int) (err error)
+//sys	Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error)
+//sys	Flock(fd int, how int) (err error)
+//sys	Fpathconf(fd int, name int) (val int, err error)
+//sys	Fstat(fd int, stat *Stat_t) (err error)
+//sys	Fstatat(fd int, path string, stat *Stat_t, flags int) (err error)
+//sys	Fstatfs(fd int, stat *Statfs_t) (err error)
+//sys	Fsync(fd int) (err error)
+//sys	Ftruncate(fd int, length int64) (err error)
+//sys	Getdents(fd int, buf []byte) (n int, err error)
+//sys	Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error)
+//sys	Getdtablesize() (size int)
+//sysnb	Getegid() (egid int)
+//sysnb	Geteuid() (uid int)
+//sysnb	Getgid() (gid int)
+//sysnb	Getpgid(pid int) (pgid int, err error)
+//sysnb	Getpgrp() (pgrp int)
+//sysnb	Getpid() (pid int)
+//sysnb	Getppid() (ppid int)
+//sys	Getpriority(which int, who int) (prio int, err error)
+//sysnb	Getrlimit(which int, lim *Rlimit) (err error)
+//sysnb	Getrusage(who int, rusage *Rusage) (err error)
+//sysnb	Getsid(pid int) (sid int, err error)
+//sysnb	Gettimeofday(tv *Timeval) (err error)
+//sysnb	Getuid() (uid int)
+//sys	Issetugid() (tainted bool)
+//sys	Kill(pid int, signum syscall.Signal) (err error)
+//sys	Kqueue() (fd int, err error)
+//sys	Lchown(path string, uid int, gid int) (err error)
+//sys	Link(path string, link string) (err error)
+//sys	Linkat(pathfd int, path string, linkfd int, link string, flags int) (err error)
+//sys	Listen(s int, backlog int) (err error)
+//sys	Lstat(path string, stat *Stat_t) (err error)
+//sys	Mkdir(path string, mode uint32) (err error)
+//sys	Mkdirat(dirfd int, path string, mode uint32) (err error)
+//sys	Mkfifo(path string, mode uint32) (err error)
+//sys	Mknod(path string, mode uint32, dev int) (err error)
+//sys	Nanosleep(time *Timespec, leftover *Timespec) (err error)
+//sys	Open(path string, mode int, perm uint32) (fd int, err error)
+//sys	Openat(fdat int, path string, mode int, perm uint32) (fd int, err error)
+//sys	Pathconf(path string, name int) (val int, err error)
+//sys	Pread(fd int, p []byte, offset int64) (n int, err error)
+//sys	Pwrite(fd int, p []byte, offset int64) (n int, err error)
+//sys	read(fd int, p []byte) (n int, err error)
+//sys	Readlink(path string, buf []byte) (n int, err error)
+//sys	Readlinkat(dirfd int, path string, buf []byte) (n int, err error)
+//sys	Rename(from string, to string) (err error)
+//sys	Renameat(fromfd int, from string, tofd int, to string) (err error)
+//sys	Revoke(path string) (err error)
+//sys	Rmdir(path string) (err error)
+//sys	Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_LSEEK
+//sys	Select(n int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (err error)
+//sysnb	Setegid(egid int) (err error)
+//sysnb	Seteuid(euid int) (err error)
+//sysnb	Setgid(gid int) (err error)
+//sys	Setlogin(name string) (err error)
+//sysnb	Setpgid(pid int, pgid int) (err error)
+//sys	Setpriority(which int, who int, prio int) (err error)
+//sysnb	Setregid(rgid int, egid int) (err error)
+//sysnb	Setreuid(ruid int, euid int) (err error)
+//sysnb	Setresgid(rgid int, egid int, sgid int) (err error)
+//sysnb	Setresuid(ruid int, euid int, suid int) (err error)
+//sysnb	Setrlimit(which int, lim *Rlimit) (err error)
+//sysnb	Setsid() (pid int, err error)
+//sysnb	Settimeofday(tp *Timeval) (err error)
+//sysnb	Setuid(uid int) (err error)
+//sys	Stat(path string, stat *Stat_t) (err error)
+//sys	Statfs(path string, stat *Statfs_t) (err error)
+//sys	Symlink(path string, link string) (err error)
+//sys	Symlinkat(oldpath string, newdirfd int, newpath string) (err error)
+//sys	Sync() (err error)
+//sys	Truncate(path string, length int64) (err error)
+//sys	Umask(newmask int) (oldmask int)
+//sys	Undelete(path string) (err error)
+//sys	Unlink(path string) (err error)
+//sys	Unlinkat(dirfd int, path string, flags int) (err error)
+//sys	Unmount(path string, flags int) (err error)
+//sys	write(fd int, p []byte) (n int, err error)
+//sys   mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error)
+//sys   munmap(addr uintptr, length uintptr) (err error)
+//sys	readlen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_READ
+//sys	writelen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_WRITE
+//sys	accept4(fd int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (nfd int, err error)
+//sys	utimensat(dirfd int, path string, times *[2]Timespec, flags int) (err error)
+
+/*
+ * Unimplemented
+ */
+// Profil
+// Sigaction
+// Sigprocmask
+// Getlogin
+// Sigpending
+// Sigaltstack
+// Ioctl
+// Reboot
+// Execve
+// Vfork
+// Sbrk
+// Sstk
+// Ovadvise
+// Mincore
+// Setitimer
+// Swapon
+// Select
+// Sigsuspend
+// Readv
+// Writev
+// Nfssvc
+// Getfh
+// Quotactl
+// Mount
+// Csops
+// Waitid
+// Add_profil
+// Kdebug_trace
+// Sigreturn
+// Atsocket
+// Kqueue_from_portset_np
+// Kqueue_portset
+// Getattrlist
+// Setattrlist
+// Getdirentriesattr
+// Searchfs
+// Delete
+// Copyfile
+// Watchevent
+// Waitevent
+// Modwatch
+// Fsctl
+// Initgroups
+// Posix_spawn
+// Nfsclnt
+// Fhopen
+// Minherit
+// Semsys
+// Msgsys
+// Shmsys
+// Semctl
+// Semget
+// Semop
+// Msgctl
+// Msgget
+// Msgsnd
+// Msgrcv
+// Shmat
+// Shmctl
+// Shmdt
+// Shmget
+// Shm_open
+// Shm_unlink
+// Sem_open
+// Sem_close
+// Sem_unlink
+// Sem_wait
+// Sem_trywait
+// Sem_post
+// Sem_getvalue
+// Sem_init
+// Sem_destroy
+// Open_extended
+// Umask_extended
+// Stat_extended
+// Lstat_extended
+// Fstat_extended
+// Chmod_extended
+// Fchmod_extended
+// Access_extended
+// Settid
+// Gettid
+// Setsgroups
+// Getsgroups
+// Setwgroups
+// Getwgroups
+// Mkfifo_extended
+// Mkdir_extended
+// Identitysvc
+// Shared_region_check_np
+// Shared_region_map_np
+// __pthread_mutex_destroy
+// __pthread_mutex_init
+// __pthread_mutex_lock
+// __pthread_mutex_trylock
+// __pthread_mutex_unlock
+// __pthread_cond_init
+// __pthread_cond_destroy
+// __pthread_cond_broadcast
+// __pthread_cond_signal
+// Setsid_with_pid
+// __pthread_cond_timedwait
+// Aio_fsync
+// Aio_return
+// Aio_suspend
+// Aio_cancel
+// Aio_error
+// Aio_read
+// Aio_write
+// Lio_listio
+// __pthread_cond_wait
+// Iopolicysys
+// __pthread_kill
+// __pthread_sigmask
+// __sigwait
+// __disable_threadsignal
+// __pthread_markcancel
+// __pthread_canceled
+// __semwait_signal
+// Proc_info
+// Stat64_extended
+// Lstat64_extended
+// Fstat64_extended
+// __pthread_chdir
+// __pthread_fchdir
+// Audit
+// Auditon
+// Getauid
+// Setauid
+// Getaudit
+// Setaudit
+// Getaudit_addr
+// Setaudit_addr
+// Auditctl
+// Bsdthread_create
+// Bsdthread_terminate
+// Stack_snapshot
+// Bsdthread_register
+// Workq_open
+// Workq_ops
+// __mac_execve
+// __mac_syscall
+// __mac_get_file
+// __mac_set_file
+// __mac_get_link
+// __mac_set_link
+// __mac_get_proc
+// __mac_set_proc
+// __mac_get_fd
+// __mac_set_fd
+// __mac_get_pid
+// __mac_get_lcid
+// __mac_get_lctx
+// __mac_set_lctx
+// Setlcid
+// Read_nocancel
+// Write_nocancel
+// Open_nocancel
+// Close_nocancel
+// Wait4_nocancel
+// Recvmsg_nocancel
+// Sendmsg_nocancel
+// Recvfrom_nocancel
+// Accept_nocancel
+// Fcntl_nocancel
+// Select_nocancel
+// Fsync_nocancel
+// Connect_nocancel
+// Sigsuspend_nocancel
+// Readv_nocancel
+// Writev_nocancel
+// Sendto_nocancel
+// Pread_nocancel
+// Pwrite_nocancel
+// Waitid_nocancel
+// Poll_nocancel
+// Msgsnd_nocancel
+// Msgrcv_nocancel
+// Sem_wait_nocancel
+// Aio_suspend_nocancel
+// __sigwait_nocancel
+// __semwait_signal_nocancel
+// __mac_mount
+// __mac_get_mount
+// __mac_getfsstat