run 'go get -u; make revendor'
Signed-off-by: Stephan Renatus <srenatus@chef.io>
This commit is contained in:
Stephan Renatus
178
vendor/golang.org/x/sys/unix/syscall_unix.go
generated
vendored
178
vendor/golang.org/x/sys/unix/syscall_unix.go
generated
vendored
@@ -2,12 +2,13 @@
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin dragonfly freebsd linux netbsd openbsd solaris
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// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
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package unix
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import (
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"runtime"
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"bytes"
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"sort"
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"sync"
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"syscall"
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"unsafe"
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@@ -19,12 +20,6 @@ var (
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Stderr = 2
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)
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const (
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darwin64Bit = runtime.GOOS == "darwin" && sizeofPtr == 8
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dragonfly64Bit = runtime.GOOS == "dragonfly" && sizeofPtr == 8
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netbsd32Bit = runtime.GOOS == "netbsd" && sizeofPtr == 4
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)
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// Do the interface allocations only once for common
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// Errno values.
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var (
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@@ -33,6 +28,11 @@ var (
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errENOENT error = syscall.ENOENT
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)
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var (
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signalNameMapOnce sync.Once
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signalNameMap map[string]syscall.Signal
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)
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// errnoErr returns common boxed Errno values, to prevent
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// allocations at runtime.
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func errnoErr(e syscall.Errno) error {
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@@ -49,10 +49,49 @@ func errnoErr(e syscall.Errno) error {
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return e
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}
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func Syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err syscall.Errno)
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func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.Errno)
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func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err syscall.Errno)
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func RawSyscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.Errno)
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// ErrnoName returns the error name for error number e.
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func ErrnoName(e syscall.Errno) string {
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i := sort.Search(len(errorList), func(i int) bool {
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return errorList[i].num >= e
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})
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if i < len(errorList) && errorList[i].num == e {
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return errorList[i].name
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}
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return ""
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}
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// SignalName returns the signal name for signal number s.
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func SignalName(s syscall.Signal) string {
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i := sort.Search(len(signalList), func(i int) bool {
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return signalList[i].num >= s
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})
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if i < len(signalList) && signalList[i].num == s {
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return signalList[i].name
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}
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return ""
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}
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// SignalNum returns the syscall.Signal for signal named s,
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// or 0 if a signal with such name is not found.
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// The signal name should start with "SIG".
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func SignalNum(s string) syscall.Signal {
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signalNameMapOnce.Do(func() {
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signalNameMap = make(map[string]syscall.Signal)
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for _, signal := range signalList {
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signalNameMap[signal.name] = signal.num
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}
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})
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return signalNameMap[s]
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}
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// clen returns the index of the first NULL byte in n or len(n) if n contains no NULL byte.
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func clen(n []byte) int {
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i := bytes.IndexByte(n, 0)
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if i == -1 {
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i = len(n)
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}
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return i
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}
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// Mmap manager, for use by operating system-specific implementations.
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@@ -142,16 +181,19 @@ func Write(fd int, p []byte) (n int, err error) {
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// creation of IPv6 sockets to return EAFNOSUPPORT.
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var SocketDisableIPv6 bool
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// Sockaddr represents a socket address.
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type Sockaddr interface {
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sockaddr() (ptr unsafe.Pointer, len _Socklen, err error) // lowercase; only we can define Sockaddrs
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}
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// SockaddrInet4 implements the Sockaddr interface for AF_INET type sockets.
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type SockaddrInet4 struct {
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Port int
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Addr [4]byte
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raw RawSockaddrInet4
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}
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// SockaddrInet6 implements the Sockaddr interface for AF_INET6 type sockets.
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type SockaddrInet6 struct {
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Port int
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ZoneId uint32
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@@ -159,6 +201,7 @@ type SockaddrInet6 struct {
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raw RawSockaddrInet6
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}
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// SockaddrUnix implements the Sockaddr interface for AF_UNIX type sockets.
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type SockaddrUnix struct {
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Name string
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raw RawSockaddrUnix
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@@ -186,7 +229,14 @@ func Getpeername(fd int) (sa Sockaddr, err error) {
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if err = getpeername(fd, &rsa, &len); err != nil {
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return
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}
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return anyToSockaddr(&rsa)
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return anyToSockaddr(fd, &rsa)
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}
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func GetsockoptByte(fd, level, opt int) (value byte, err error) {
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var n byte
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vallen := _Socklen(1)
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err = getsockopt(fd, level, opt, unsafe.Pointer(&n), &vallen)
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return n, err
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}
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func GetsockoptInt(fd, level, opt int) (value int, err error) {
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@@ -196,6 +246,61 @@ func GetsockoptInt(fd, level, opt int) (value int, err error) {
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return int(n), err
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}
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func GetsockoptInet4Addr(fd, level, opt int) (value [4]byte, err error) {
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vallen := _Socklen(4)
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err = getsockopt(fd, level, opt, unsafe.Pointer(&value[0]), &vallen)
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return value, err
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}
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func GetsockoptIPMreq(fd, level, opt int) (*IPMreq, error) {
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var value IPMreq
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vallen := _Socklen(SizeofIPMreq)
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err := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen)
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return &value, err
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}
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func GetsockoptIPv6Mreq(fd, level, opt int) (*IPv6Mreq, error) {
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var value IPv6Mreq
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vallen := _Socklen(SizeofIPv6Mreq)
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err := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen)
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return &value, err
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}
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func GetsockoptIPv6MTUInfo(fd, level, opt int) (*IPv6MTUInfo, error) {
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var value IPv6MTUInfo
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vallen := _Socklen(SizeofIPv6MTUInfo)
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err := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen)
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return &value, err
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}
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func GetsockoptICMPv6Filter(fd, level, opt int) (*ICMPv6Filter, error) {
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var value ICMPv6Filter
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vallen := _Socklen(SizeofICMPv6Filter)
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err := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen)
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return &value, err
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}
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func GetsockoptLinger(fd, level, opt int) (*Linger, error) {
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var linger Linger
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vallen := _Socklen(SizeofLinger)
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err := getsockopt(fd, level, opt, unsafe.Pointer(&linger), &vallen)
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return &linger, err
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}
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func GetsockoptTimeval(fd, level, opt int) (*Timeval, error) {
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var tv Timeval
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vallen := _Socklen(unsafe.Sizeof(tv))
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err := getsockopt(fd, level, opt, unsafe.Pointer(&tv), &vallen)
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return &tv, err
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}
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func GetsockoptUint64(fd, level, opt int) (value uint64, err error) {
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var n uint64
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vallen := _Socklen(8)
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err = getsockopt(fd, level, opt, unsafe.Pointer(&n), &vallen)
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return n, err
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}
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func Recvfrom(fd int, p []byte, flags int) (n int, from Sockaddr, err error) {
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var rsa RawSockaddrAny
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var len _Socklen = SizeofSockaddrAny
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@@ -203,7 +308,7 @@ func Recvfrom(fd int, p []byte, flags int) (n int, from Sockaddr, err error) {
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return
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}
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if rsa.Addr.Family != AF_UNSPEC {
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from, err = anyToSockaddr(&rsa)
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from, err = anyToSockaddr(fd, &rsa)
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}
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return
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}
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@@ -246,13 +351,21 @@ func SetsockoptLinger(fd, level, opt int, l *Linger) (err error) {
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}
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func SetsockoptString(fd, level, opt int, s string) (err error) {
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return setsockopt(fd, level, opt, unsafe.Pointer(&[]byte(s)[0]), uintptr(len(s)))
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var p unsafe.Pointer
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if len(s) > 0 {
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p = unsafe.Pointer(&[]byte(s)[0])
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}
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return setsockopt(fd, level, opt, p, uintptr(len(s)))
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}
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func SetsockoptTimeval(fd, level, opt int, tv *Timeval) (err error) {
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return setsockopt(fd, level, opt, unsafe.Pointer(tv), unsafe.Sizeof(*tv))
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}
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func SetsockoptUint64(fd, level, opt int, value uint64) (err error) {
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return setsockopt(fd, level, opt, unsafe.Pointer(&value), 8)
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}
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func Socket(domain, typ, proto int) (fd int, err error) {
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if domain == AF_INET6 && SocketDisableIPv6 {
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return -1, EAFNOSUPPORT
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@@ -271,13 +384,6 @@ func Socketpair(domain, typ, proto int) (fd [2]int, err error) {
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return
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}
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func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
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if raceenabled {
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raceReleaseMerge(unsafe.Pointer(&ioSync))
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}
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return sendfile(outfd, infd, offset, count)
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}
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var ioSync int64
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func CloseOnExec(fd int) { fcntl(fd, F_SETFD, FD_CLOEXEC) }
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@@ -295,3 +401,31 @@ func SetNonblock(fd int, nonblocking bool) (err error) {
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_, err = fcntl(fd, F_SETFL, flag)
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return err
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}
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// Exec calls execve(2), which replaces the calling executable in the process
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// tree. argv0 should be the full path to an executable ("/bin/ls") and the
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// executable name should also be the first argument in argv (["ls", "-l"]).
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// envv are the environment variables that should be passed to the new
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// process (["USER=go", "PWD=/tmp"]).
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func Exec(argv0 string, argv []string, envv []string) error {
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return syscall.Exec(argv0, argv, envv)
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}
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// Lutimes sets the access and modification times tv on path. If path refers to
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// a symlink, it is not dereferenced and the timestamps are set on the symlink.
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// If tv is nil, the access and modification times are set to the current time.
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// Otherwise tv must contain exactly 2 elements, with access time as the first
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// element and modification time as the second element.
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func Lutimes(path string, tv []Timeval) error {
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if tv == nil {
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return UtimesNanoAt(AT_FDCWD, path, nil, AT_SYMLINK_NOFOLLOW)
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}
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if len(tv) != 2 {
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return EINVAL
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}
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ts := []Timespec{
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NsecToTimespec(TimevalToNsec(tv[0])),
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NsecToTimespec(TimevalToNsec(tv[1])),
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}
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return UtimesNanoAt(AT_FDCWD, path, ts, AT_SYMLINK_NOFOLLOW)
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}
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