diff options
Diffstat (limited to 'vendor/golang.org/x/sys/unix/syscall_unix.go')
| -rw-r--r-- | vendor/golang.org/x/sys/unix/syscall_unix.go | 115 |
1 files changed, 108 insertions, 7 deletions
diff --git a/vendor/golang.org/x/sys/unix/syscall_unix.go b/vendor/golang.org/x/sys/unix/syscall_unix.go index 3ed8a91f..64fcda4a 100644 --- a/vendor/golang.org/x/sys/unix/syscall_unix.go +++ b/vendor/golang.org/x/sys/unix/syscall_unix.go @@ -2,12 +2,14 @@ // 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 solaris +// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris package unix import ( + "bytes" "runtime" + "sort" "sync" "syscall" "unsafe" @@ -20,10 +22,10 @@ var ( ) const ( - darwin64Bit = runtime.GOOS == "darwin" && sizeofPtr == 8 - dragonfly64Bit = runtime.GOOS == "dragonfly" && sizeofPtr == 8 - netbsd32Bit = runtime.GOOS == "netbsd" && sizeofPtr == 4 - solaris64Bit = runtime.GOOS == "solaris" && sizeofPtr == 8 + darwin64Bit = runtime.GOOS == "darwin" && SizeofPtr == 8 + dragonfly64Bit = runtime.GOOS == "dragonfly" && SizeofPtr == 8 + netbsd32Bit = runtime.GOOS == "netbsd" && SizeofPtr == 4 + solaris64Bit = runtime.GOOS == "solaris" && SizeofPtr == 8 ) // Do the interface allocations only once for common @@ -50,6 +52,37 @@ func errnoErr(e syscall.Errno) error { return e } +// ErrnoName returns the error name for error number e. +func ErrnoName(e syscall.Errno) string { + i := sort.Search(len(errorList), func(i int) bool { + return errorList[i].num >= e + }) + if i < len(errorList) && errorList[i].num == e { + return errorList[i].name + } + return "" +} + +// SignalName returns the signal name for signal number s. +func SignalName(s syscall.Signal) string { + i := sort.Search(len(signalList), func(i int) bool { + return signalList[i].num >= s + }) + if i < len(signalList) && signalList[i].num == s { + return signalList[i].name + } + return "" +} + +// clen returns the index of the first NULL byte in n or len(n) if n contains no NULL byte. +func clen(n []byte) int { + i := bytes.IndexByte(n, 0) + if i == -1 { + i = len(n) + } + return i +} + // Mmap manager, for use by operating system-specific implementations. type mmapper struct { @@ -138,16 +171,19 @@ func Write(fd int, p []byte) (n int, err error) { // creation of IPv6 sockets to return EAFNOSUPPORT. var SocketDisableIPv6 bool +// Sockaddr represents a socket address. type Sockaddr interface { sockaddr() (ptr unsafe.Pointer, len _Socklen, err error) // lowercase; only we can define Sockaddrs } +// SockaddrInet4 implements the Sockaddr interface for AF_INET type sockets. type SockaddrInet4 struct { Port int Addr [4]byte raw RawSockaddrInet4 } +// SockaddrInet6 implements the Sockaddr interface for AF_INET6 type sockets. type SockaddrInet6 struct { Port int ZoneId uint32 @@ -155,6 +191,7 @@ type SockaddrInet6 struct { raw RawSockaddrInet6 } +// SockaddrUnix implements the Sockaddr interface for AF_UNIX type sockets. type SockaddrUnix struct { Name string raw RawSockaddrUnix @@ -182,7 +219,14 @@ func Getpeername(fd int) (sa Sockaddr, err error) { if err = getpeername(fd, &rsa, &len); err != nil { return } - return anyToSockaddr(&rsa) + return anyToSockaddr(fd, &rsa) +} + +func GetsockoptByte(fd, level, opt int) (value byte, err error) { + var n byte + vallen := _Socklen(1) + err = getsockopt(fd, level, opt, unsafe.Pointer(&n), &vallen) + return n, err } func GetsockoptInt(fd, level, opt int) (value int, err error) { @@ -192,6 +236,54 @@ func GetsockoptInt(fd, level, opt int) (value int, err error) { return int(n), err } +func GetsockoptInet4Addr(fd, level, opt int) (value [4]byte, err error) { + vallen := _Socklen(4) + err = getsockopt(fd, level, opt, unsafe.Pointer(&value[0]), &vallen) + return value, err +} + +func GetsockoptIPMreq(fd, level, opt int) (*IPMreq, error) { + var value IPMreq + vallen := _Socklen(SizeofIPMreq) + err := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen) + return &value, err +} + +func GetsockoptIPv6Mreq(fd, level, opt int) (*IPv6Mreq, error) { + var value IPv6Mreq + vallen := _Socklen(SizeofIPv6Mreq) + err := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen) + return &value, err +} + +func GetsockoptIPv6MTUInfo(fd, level, opt int) (*IPv6MTUInfo, error) { + var value IPv6MTUInfo + vallen := _Socklen(SizeofIPv6MTUInfo) + err := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen) + return &value, err +} + +func GetsockoptICMPv6Filter(fd, level, opt int) (*ICMPv6Filter, error) { + var value ICMPv6Filter + vallen := _Socklen(SizeofICMPv6Filter) + err := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen) + return &value, err +} + +func GetsockoptLinger(fd, level, opt int) (*Linger, error) { + var linger Linger + vallen := _Socklen(SizeofLinger) + err := getsockopt(fd, level, opt, unsafe.Pointer(&linger), &vallen) + return &linger, err +} + +func GetsockoptTimeval(fd, level, opt int) (*Timeval, error) { + var tv Timeval + vallen := _Socklen(unsafe.Sizeof(tv)) + err := getsockopt(fd, level, opt, unsafe.Pointer(&tv), &vallen) + return &tv, err +} + func Recvfrom(fd int, p []byte, flags int) (n int, from Sockaddr, err error) { var rsa RawSockaddrAny var len _Socklen = SizeofSockaddrAny @@ -199,7 +291,7 @@ func Recvfrom(fd int, p []byte, flags int) (n int, from Sockaddr, err error) { return } if rsa.Addr.Family != AF_UNSPEC { - from, err = anyToSockaddr(&rsa) + from, err = anyToSockaddr(fd, &rsa) } return } @@ -291,3 +383,12 @@ func SetNonblock(fd int, nonblocking bool) (err error) { _, err = fcntl(fd, F_SETFL, flag) return err } + +// Exec calls execve(2), which replaces the calling executable in the process +// tree. argv0 should be the full path to an executable ("/bin/ls") and the +// executable name should also be the first argument in argv (["ls", "-l"]). +// envv are the environment variables that should be passed to the new +// process (["USER=go", "PWD=/tmp"]). +func Exec(argv0 string, argv []string, envv []string) error { + return syscall.Exec(argv0, argv, envv) +} |