mirror of
https://github.com/golang/go
synced 2024-11-12 06:20:22 -07:00
syscall: Create syscall_bsd.go for code used by Darwin and other *BSDs
In this change I'd like to combine the common code that is present in syscall_darwin.go and syscall_freebsd.go. I have three reasons for wanting to do this now: 1. reducing code duplication is nearly always good :-) 2. the duplication will get worse if I duplicate this code a third time for the NetBSD port I'm working on, which I need to do almost immediately 3. by making this change all in one lump and ignoring any commonality with the syscall_linux*.go files the diff is long but, I think, readable In future it may be possible to cherry pick functions that also apply to Linux and put them in (say) syscall_unix.go, and of course some functions may diverge in future and have to move out to OS or architecture specific files, but today I want just the low hanging fruit. Tested and passed on: Darwin (Snow Leopard, 10.6): amd64 and 386 FreeBSD (8.0-RELEASE): 386 only(*) (*) All my virtualisation software has stopped playing nice with FreeBSD for the moment, so I don't have facilities to test the amd64 port. As the OS X port is OK and the diff looks all right to my eyes I shall keep my fingers crossed. If someone with a FreeBSD/amd64 system cares to test and report I would be appreciative. 2010-03-27 update: I have replaced my virtualisation software, and have working FreeBSD/i386 and FreeBSD/amd64 virtual machines again. As I hoped (and expected -- programmers are optimists :-) the code built and passed all but the two currently known to fail tests on FreeBSD/amd64. I rechecked FreeBSD/i386 too: same results. R=rsc CC=golang-dev https://golang.org/cl/751041
This commit is contained in:
Giles Lean
Russ Cox
parent
d0ffee8abf
commit
ad73de2f5f
@ -18,9 +18,11 @@ GOFILES=\
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ztypes_$(GOOS)_$(GOARCH).go\
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GOFILES_freebsd=\
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syscall_bsd.go\
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syscall_unix.go\
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GOFILES_darwin=\
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syscall_bsd.go\
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syscall_unix.go\
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GOFILES_linux=\
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467
src/pkg/syscall/syscall_bsd.go
Normal file
467
src/pkg/syscall/syscall_bsd.go
Normal file
@ -0,0 +1,467 @@
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// Copyright 2009,2010 The Go Authors. All rights reserved.
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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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// BSD system call wrappers shared by *BSD based systems
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// including OS X (Darwin) and FreeBSD. Like the other
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// syscall_*.go files it is compiled as Go code but also
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// used as input to mksyscall which parses the //sys
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// lines and generates system call stubs.
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package syscall
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import "unsafe"
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/*
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* Pseudo-system calls
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*/
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// The const provides a compile-time constant so clients
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// can adjust to whether there is a working Getwd and avoid
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// even linking this function into the binary. See ../os/getwd.go.
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const ImplementsGetwd = false
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func Getwd() (string, int) { return "", ENOTSUP }
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/*
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* Wrapped
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*/
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//sys getgroups(ngid int, gid *_Gid_t) (n int, errno int)
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//sys setgroups(ngid int, gid *_Gid_t) (errno int)
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func Getgroups() (gids []int, errno int) {
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n, err := getgroups(0, nil)
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if err != 0 {
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return nil, errno
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}
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if n == 0 {
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return nil, 0
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}
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// Sanity check group count. Max is 16 on BSD.
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if n < 0 || n > 1000 {
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return nil, EINVAL
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}
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a := make([]_Gid_t, n)
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n, err = getgroups(n, &a[0])
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if err != 0 {
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return nil, errno
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}
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gids = make([]int, n)
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for i, v := range a[0:n] {
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gids[i] = int(v)
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}
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return
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}
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func Setgroups(gids []int) (errno int) {
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if len(gids) == 0 {
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return setgroups(0, nil)
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}
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a := make([]_Gid_t, len(gids))
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for i, v := range gids {
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a[i] = _Gid_t(v)
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}
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return setgroups(len(a), &a[0])
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}
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// Wait status is 7 bits at bottom, either 0 (exited),
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// 0x7F (stopped), or a signal number that caused an exit.
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// The 0x80 bit is whether there was a core dump.
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// An extra number (exit code, signal causing a stop)
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// is in the high bits.
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type WaitStatus uint32
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const (
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mask = 0x7F
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core = 0x80
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shift = 8
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exited = 0
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stopped = 0x7F
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)
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func (w WaitStatus) Exited() bool { return w&mask == exited }
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func (w WaitStatus) ExitStatus() int {
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if w&mask != exited {
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return -1
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}
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return int(w >> shift)
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}
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func (w WaitStatus) Signaled() bool { return w&mask != stopped && w&mask != 0 }
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func (w WaitStatus) Signal() int {
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sig := int(w & mask)
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if sig == stopped || sig == 0 {
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return -1
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}
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return sig
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}
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func (w WaitStatus) CoreDump() bool { return w.Signaled() && w&core != 0 }
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func (w WaitStatus) Stopped() bool { return w&mask == stopped && w>>shift != SIGSTOP }
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func (w WaitStatus) Continued() bool { return w&mask == stopped && w>>shift == SIGSTOP }
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func (w WaitStatus) StopSignal() int {
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if !w.Stopped() {
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return -1
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}
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return int(w>>shift) & 0xFF
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}
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func (w WaitStatus) TrapCause() int { return -1 }
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//sys wait4(pid int, wstatus *_C_int, options int, rusage *Rusage) (wpid int, errno int)
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func Wait4(pid int, wstatus *WaitStatus, options int, rusage *Rusage) (wpid int, errno int) {
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var status _C_int
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wpid, errno = wait4(pid, &status, options, rusage)
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if wstatus != nil {
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*wstatus = WaitStatus(status)
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}
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return
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}
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//sys pipe() (r int, w int, errno int)
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func Pipe(p []int) (errno int) {
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if len(p) != 2 {
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return EINVAL
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}
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p[0], p[1], errno = pipe()
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return
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}
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func Sleep(ns int64) (errno int) {
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tv := NsecToTimeval(ns)
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return Select(0, nil, nil, nil, &tv)
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}
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//sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, errno int)
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//sys bind(s int, addr uintptr, addrlen _Socklen) (errno int)
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//sys connect(s int, addr uintptr, addrlen _Socklen) (errno int)
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//sys socket(domain int, typ int, proto int) (fd int, errno int)
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//sys setsockopt(s int, level int, name int, val uintptr, vallen int) (errno int)
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//sys getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (errno int)
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//sys getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (errno int)
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//sys Shutdown(s int, how int) (errno int)
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// For testing: clients can set this flag to force
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// creation of IPv6 sockets to return EAFNOSUPPORT.
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var SocketDisableIPv6 bool
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type Sockaddr interface {
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sockaddr() (ptr uintptr, len _Socklen, errno int) // lowercase; only we can define Sockaddrs
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}
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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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func (sa *SockaddrInet4) sockaddr() (uintptr, _Socklen, int) {
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if sa.Port < 0 || sa.Port > 0xFFFF {
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return 0, 0, EINVAL
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}
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sa.raw.Len = SizeofSockaddrInet4
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sa.raw.Family = AF_INET
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p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
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p[0] = byte(sa.Port >> 8)
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p[1] = byte(sa.Port)
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for i := 0; i < len(sa.Addr); i++ {
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sa.raw.Addr[i] = sa.Addr[i]
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}
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return uintptr(unsafe.Pointer(&sa.raw)), _Socklen(sa.raw.Len), 0
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}
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type SockaddrInet6 struct {
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Port int
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Addr [16]byte
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raw RawSockaddrInet6
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}
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func (sa *SockaddrInet6) sockaddr() (uintptr, _Socklen, int) {
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if sa.Port < 0 || sa.Port > 0xFFFF {
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return 0, 0, EINVAL
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}
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sa.raw.Len = SizeofSockaddrInet6
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sa.raw.Family = AF_INET6
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p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
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p[0] = byte(sa.Port >> 8)
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p[1] = byte(sa.Port)
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for i := 0; i < len(sa.Addr); i++ {
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sa.raw.Addr[i] = sa.Addr[i]
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}
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return uintptr(unsafe.Pointer(&sa.raw)), _Socklen(sa.raw.Len), 0
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}
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type SockaddrUnix struct {
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Name string
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raw RawSockaddrUnix
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}
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func (sa *SockaddrUnix) sockaddr() (uintptr, _Socklen, int) {
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name := sa.Name
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n := len(name)
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if n >= len(sa.raw.Path) || n == 0 {
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return 0, 0, EINVAL
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}
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sa.raw.Len = byte(3 + n) // 2 for Family, Len; 1 for NUL
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sa.raw.Family = AF_UNIX
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for i := 0; i < n; i++ {
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sa.raw.Path[i] = int8(name[i])
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}
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return uintptr(unsafe.Pointer(&sa.raw)), _Socklen(sa.raw.Len), 0
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}
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func anyToSockaddr(rsa *RawSockaddrAny) (Sockaddr, int) {
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switch rsa.Addr.Family {
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case AF_UNIX:
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pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa))
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if pp.Len < 3 || pp.Len > SizeofSockaddrUnix {
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return nil, EINVAL
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}
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sa := new(SockaddrUnix)
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n := int(pp.Len) - 3 // subtract leading Family, Len, terminating NUL
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for i := 0; i < n; i++ {
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if pp.Path[i] == 0 {
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// found early NUL; assume Len is overestimating
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n = i
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break
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}
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}
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bytes := (*[len(pp.Path)]byte)(unsafe.Pointer(&pp.Path[0]))
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sa.Name = string(bytes[0:n])
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return sa, 0
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case AF_INET:
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pp := (*RawSockaddrInet4)(unsafe.Pointer(rsa))
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sa := new(SockaddrInet4)
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p := (*[2]byte)(unsafe.Pointer(&pp.Port))
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sa.Port = int(p[0])<<8 + int(p[1])
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for i := 0; i < len(sa.Addr); i++ {
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sa.Addr[i] = pp.Addr[i]
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}
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return sa, 0
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case AF_INET6:
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pp := (*RawSockaddrInet6)(unsafe.Pointer(rsa))
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sa := new(SockaddrInet6)
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p := (*[2]byte)(unsafe.Pointer(&pp.Port))
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sa.Port = int(p[0])<<8 + int(p[1])
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for i := 0; i < len(sa.Addr); i++ {
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sa.Addr[i] = pp.Addr[i]
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}
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return sa, 0
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}
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return nil, EAFNOSUPPORT
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}
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func Accept(fd int) (nfd int, sa Sockaddr, errno int) {
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var rsa RawSockaddrAny
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var len _Socklen = SizeofSockaddrAny
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nfd, errno = accept(fd, &rsa, &len)
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if errno != 0 {
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return
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}
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sa, errno = anyToSockaddr(&rsa)
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if errno != 0 {
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Close(nfd)
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nfd = 0
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}
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return
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}
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func Getsockname(fd int) (sa Sockaddr, errno int) {
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var rsa RawSockaddrAny
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var len _Socklen = SizeofSockaddrAny
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if errno = getsockname(fd, &rsa, &len); errno != 0 {
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return
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}
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return anyToSockaddr(&rsa)
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}
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func Getpeername(fd int) (sa Sockaddr, errno int) {
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var rsa RawSockaddrAny
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var len _Socklen = SizeofSockaddrAny
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if errno = getpeername(fd, &rsa, &len); errno != 0 {
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return
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}
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return anyToSockaddr(&rsa)
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}
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func Bind(fd int, sa Sockaddr) (errno int) {
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ptr, n, err := sa.sockaddr()
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if err != 0 {
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return err
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}
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return bind(fd, ptr, n)
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}
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func Connect(fd int, sa Sockaddr) (errno int) {
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ptr, n, err := sa.sockaddr()
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if err != 0 {
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return err
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}
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return connect(fd, ptr, n)
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}
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func Socket(domain, typ, proto int) (fd, errno int) {
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if domain == AF_INET6 && SocketDisableIPv6 {
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return -1, EAFNOSUPPORT
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}
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fd, errno = socket(domain, typ, proto)
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return
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}
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func SetsockoptInt(fd, level, opt int, value int) (errno int) {
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var n = int32(value)
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return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(&n)), 4)
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}
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|
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func SetsockoptTimeval(fd, level, opt int, tv *Timeval) (errno int) {
|
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return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(tv)), unsafe.Sizeof(*tv))
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}
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|
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func SetsockoptLinger(fd, level, opt int, l *Linger) (errno int) {
|
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return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(l)), unsafe.Sizeof(*l))
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}
|
||||
|
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func SetsockoptString(fd, level, opt int, s string) (errno int) {
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return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(&[]byte(s)[0])), len(s))
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}
|
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|
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//sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, errno int)
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|
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func Recvfrom(fd int, p []byte, flags int) (n int, from Sockaddr, errno int) {
|
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var rsa RawSockaddrAny
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var len _Socklen = SizeofSockaddrAny
|
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if n, errno = recvfrom(fd, p, flags, &rsa, &len); errno != 0 {
|
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return
|
||||
}
|
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from, errno = anyToSockaddr(&rsa)
|
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return
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}
|
||||
|
||||
//sys sendto(s int, buf []byte, flags int, to uintptr, addrlen _Socklen) (errno int)
|
||||
|
||||
func Sendto(fd int, p []byte, flags int, to Sockaddr) (errno int) {
|
||||
ptr, n, err := to.sockaddr()
|
||||
if err != 0 {
|
||||
return err
|
||||
}
|
||||
return sendto(fd, p, flags, ptr, n)
|
||||
}
|
||||
|
||||
//sys kevent(kq int, change uintptr, nchange int, event uintptr, nevent int, timeout *Timespec) (n int, errno int)
|
||||
|
||||
func Kevent(kq int, changes, events []Kevent_t, timeout *Timespec) (n int, errno int) {
|
||||
var change, event uintptr
|
||||
if len(changes) > 0 {
|
||||
change = uintptr(unsafe.Pointer(&changes[0]))
|
||||
}
|
||||
if len(events) > 0 {
|
||||
event = uintptr(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) (errno int) = SYS___SYSCTL
|
||||
|
||||
// Translate "kern.hostname" to []_C_int{0,1,2,3}.
|
||||
func nametomib(name string) (mib []_C_int, errno int) {
|
||||
const CTL_MAXNAME = 12
|
||||
const siz = uintptr(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 := StringByteSlice(name)
|
||||
|
||||
// Magic sysctl: "setting" 0.3 to a string name
|
||||
// lets you read back the array of integers form.
|
||||
if errno = sysctl([]_C_int{0, 3}, p, &n, &bytes[0], uintptr(len(name))); errno != 0 {
|
||||
return nil, errno
|
||||
}
|
||||
return buf[0 : n/siz], 0
|
||||
}
|
||||
|
||||
func Sysctl(name string) (value string, errno int) {
|
||||
// Translate name to mib number.
|
||||
mib, errno := nametomib(name)
|
||||
if errno != 0 {
|
||||
return "", errno
|
||||
}
|
||||
|
||||
// Find size.
|
||||
n := uintptr(0)
|
||||
if errno = sysctl(mib, nil, &n, nil, 0); errno != 0 {
|
||||
return "", errno
|
||||
}
|
||||
if n == 0 {
|
||||
return "", 0
|
||||
}
|
||||
|
||||
// Read into buffer of that size.
|
||||
buf := make([]byte, n)
|
||||
if errno = sysctl(mib, &buf[0], &n, nil, 0); errno != 0 {
|
||||
return "", errno
|
||||
}
|
||||
|
||||
// Throw away terminating NUL.
|
||||
if n > 0 && buf[n-1] == '\x00' {
|
||||
n--
|
||||
}
|
||||
return string(buf[0:n]), 0
|
||||
}
|
||||
|
||||
func SysctlUint32(name string) (value uint32, errno int) {
|
||||
// Translate name to mib number.
|
||||
mib, errno := nametomib(name)
|
||||
if errno != 0 {
|
||||
return 0, errno
|
||||
}
|
||||
|
||||
// Read into buffer of that size.
|
||||
n := uintptr(4)
|
||||
buf := make([]byte, 4)
|
||||
if errno = sysctl(mib, &buf[0], &n, nil, 0); errno != 0 {
|
||||
return 0, errno
|
||||
}
|
||||
if n != 4 {
|
||||
return 0, EIO
|
||||
}
|
||||
return *(*uint32)(unsafe.Pointer(&buf[0])), 0
|
||||
}
|
||||
|
||||
// TODO: wrap
|
||||
// Acct(name nil-string) (errno int)
|
||||
// Futimes(fd int, timeval *Timeval) (errno int) // Pointer to 2 timevals!
|
||||
// Gethostuuid(uuid *byte, timeout *Timespec) (errno int)
|
||||
// Getsockopt(s int, level int, name int, val *byte, vallen *int) (errno int)
|
||||
// Madvise(addr *byte, len int, behav int) (errno int)
|
||||
// Mprotect(addr *byte, len int, prot int) (errno int)
|
||||
// Msync(addr *byte, len int, flags int) (errno int)
|
||||
// Munmap(addr *byte, len int) (errno int)
|
||||
// Ptrace(req int, pid int, addr uintptr, data int) (ret uintptr, errno int)
|
||||
// Recvmsg(s int, msg *Msghdr, flags int) (n int, errno int)
|
||||
// Sendmsg(s int, msg *Msghdr, flags int) (n int, errno int)
|
||||
// Utimes(path string, timeval *Timeval) (errno int) // Pointer to 2 timevals!
|
||||
//sys fcntl(fd int, cmd int, arg int) (val int, errno int)
|
||||
@ -1,4 +1,4 @@
|
||||
// Copyright 2009 The Go Authors. All rights reserved.
|
||||
// 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.
|
||||
|
||||
@ -6,477 +6,22 @@
|
||||
// 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.
|
||||
// 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 syscall
|
||||
|
||||
import "unsafe"
|
||||
|
||||
const OS = "darwin"
|
||||
|
||||
/*
|
||||
* Pseudo-system calls
|
||||
*/
|
||||
// The const provides a compile-time constant so clients
|
||||
// can adjust to whether there is a working Getwd and avoid
|
||||
// even linking this function into the binary. See ../os/getwd.go.
|
||||
const ImplementsGetwd = false
|
||||
|
||||
func Getwd() (string, int) { return "", ENOTSUP }
|
||||
|
||||
|
||||
/*
|
||||
* Wrapped
|
||||
*/
|
||||
|
||||
//sys getgroups(ngid int, gid *_Gid_t) (n int, errno int)
|
||||
//sys setgroups(ngid int, gid *_Gid_t) (errno int)
|
||||
|
||||
func Getgroups() (gids []int, errno int) {
|
||||
n, err := getgroups(0, nil)
|
||||
if err != 0 {
|
||||
return nil, errno
|
||||
}
|
||||
if n == 0 {
|
||||
return nil, 0
|
||||
}
|
||||
|
||||
// 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 != 0 {
|
||||
return nil, errno
|
||||
}
|
||||
gids = make([]int, n)
|
||||
for i, v := range a[0:n] {
|
||||
gids[i] = int(v)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func Setgroups(gids []int) (errno int) {
|
||||
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])
|
||||
}
|
||||
|
||||
// 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() int {
|
||||
sig := int(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 && w>>shift != SIGSTOP }
|
||||
|
||||
func (w WaitStatus) Continued() bool { return w&mask == stopped && w>>shift == SIGSTOP }
|
||||
|
||||
func (w WaitStatus) StopSignal() int {
|
||||
if !w.Stopped() {
|
||||
return -1
|
||||
}
|
||||
return int(w>>shift) & 0xFF
|
||||
}
|
||||
|
||||
func (w WaitStatus) TrapCause() int {
|
||||
// Darwin doesn't have trap causes
|
||||
return -1
|
||||
}
|
||||
|
||||
//sys wait4(pid int, wstatus *_C_int, options int, rusage *Rusage) (wpid int, errno int)
|
||||
|
||||
func Wait4(pid int, wstatus *WaitStatus, options int, rusage *Rusage) (wpid int, errno int) {
|
||||
var status _C_int
|
||||
wpid, errno = wait4(pid, &status, options, rusage)
|
||||
if wstatus != nil {
|
||||
*wstatus = WaitStatus(status)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
//sys pipe() (r int, w int, errno int)
|
||||
|
||||
func Pipe(p []int) (errno int) {
|
||||
if len(p) != 2 {
|
||||
return EINVAL
|
||||
}
|
||||
p[0], p[1], errno = pipe()
|
||||
return
|
||||
}
|
||||
|
||||
func Sleep(ns int64) (errno int) {
|
||||
tv := NsecToTimeval(ns)
|
||||
return Select(0, nil, nil, nil, &tv)
|
||||
}
|
||||
|
||||
//sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, errno int)
|
||||
//sys bind(s int, addr uintptr, addrlen _Socklen) (errno int)
|
||||
//sys connect(s int, addr uintptr, addrlen _Socklen) (errno int)
|
||||
//sys socket(domain int, typ int, proto int) (fd int, errno int)
|
||||
//sys setsockopt(s int, level int, name int, val uintptr, vallen int) (errno int)
|
||||
//sys getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (errno int)
|
||||
//sys getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (errno int)
|
||||
//sys Shutdown(s int, how int) (errno int)
|
||||
|
||||
// For testing: clients can set this flag to force
|
||||
// creation of IPv6 sockets to return EAFNOSUPPORT.
|
||||
var SocketDisableIPv6 bool
|
||||
|
||||
type Sockaddr interface {
|
||||
sockaddr() (ptr uintptr, len _Socklen, errno int) // lowercase; only we can define Sockaddrs
|
||||
}
|
||||
|
||||
type SockaddrInet4 struct {
|
||||
Port int
|
||||
Addr [4]byte
|
||||
raw RawSockaddrInet4
|
||||
}
|
||||
|
||||
func (sa *SockaddrInet4) sockaddr() (uintptr, _Socklen, int) {
|
||||
if sa.Port < 0 || sa.Port > 0xFFFF {
|
||||
return 0, 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 uintptr(unsafe.Pointer(&sa.raw)), _Socklen(sa.raw.Len), 0
|
||||
}
|
||||
|
||||
type SockaddrInet6 struct {
|
||||
Port int
|
||||
Addr [16]byte
|
||||
raw RawSockaddrInet6
|
||||
}
|
||||
|
||||
func (sa *SockaddrInet6) sockaddr() (uintptr, _Socklen, int) {
|
||||
if sa.Port < 0 || sa.Port > 0xFFFF {
|
||||
return 0, 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)
|
||||
for i := 0; i < len(sa.Addr); i++ {
|
||||
sa.raw.Addr[i] = sa.Addr[i]
|
||||
}
|
||||
return uintptr(unsafe.Pointer(&sa.raw)), _Socklen(sa.raw.Len), 0
|
||||
}
|
||||
|
||||
type SockaddrUnix struct {
|
||||
Name string
|
||||
raw RawSockaddrUnix
|
||||
}
|
||||
|
||||
func (sa *SockaddrUnix) sockaddr() (uintptr, _Socklen, int) {
|
||||
name := sa.Name
|
||||
n := len(name)
|
||||
if n >= len(sa.raw.Path) || n == 0 {
|
||||
return 0, 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 uintptr(unsafe.Pointer(&sa.raw)), _Socklen(sa.raw.Len), 0
|
||||
}
|
||||
|
||||
func anyToSockaddr(rsa *RawSockaddrAny) (Sockaddr, int) {
|
||||
switch rsa.Addr.Family {
|
||||
case AF_UNIX:
|
||||
pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa))
|
||||
if pp.Len < 3 || pp.Len > SizeofSockaddrUnix {
|
||||
return nil, EINVAL
|
||||
}
|
||||
sa := new(SockaddrUnix)
|
||||
n := int(pp.Len) - 3 // subtract leading Family, Len, terminating NUL
|
||||
for i := 0; i < n; i++ {
|
||||
if pp.Path[i] == 0 {
|
||||
// found early NUL; assume Len is overestimating
|
||||
n = i
|
||||
break
|
||||
}
|
||||
}
|
||||
bytes := (*[len(pp.Path)]byte)(unsafe.Pointer(&pp.Path[0]))
|
||||
sa.Name = string(bytes[0:n])
|
||||
return sa, 0
|
||||
|
||||
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, 0
|
||||
|
||||
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])
|
||||
for i := 0; i < len(sa.Addr); i++ {
|
||||
sa.Addr[i] = pp.Addr[i]
|
||||
}
|
||||
return sa, 0
|
||||
}
|
||||
return nil, EAFNOSUPPORT
|
||||
}
|
||||
|
||||
func Accept(fd int) (nfd int, sa Sockaddr, errno int) {
|
||||
var rsa RawSockaddrAny
|
||||
var len _Socklen = SizeofSockaddrAny
|
||||
nfd, errno = accept(fd, &rsa, &len)
|
||||
if errno != 0 {
|
||||
return
|
||||
}
|
||||
sa, errno = anyToSockaddr(&rsa)
|
||||
if errno != 0 {
|
||||
Close(nfd)
|
||||
nfd = 0
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func Getsockname(fd int) (sa Sockaddr, errno int) {
|
||||
var rsa RawSockaddrAny
|
||||
var len _Socklen = SizeofSockaddrAny
|
||||
if errno = getsockname(fd, &rsa, &len); errno != 0 {
|
||||
return
|
||||
}
|
||||
return anyToSockaddr(&rsa)
|
||||
}
|
||||
|
||||
func Getpeername(fd int) (sa Sockaddr, errno int) {
|
||||
var rsa RawSockaddrAny
|
||||
var len _Socklen = SizeofSockaddrAny
|
||||
if errno = getpeername(fd, &rsa, &len); errno != 0 {
|
||||
return
|
||||
}
|
||||
return anyToSockaddr(&rsa)
|
||||
}
|
||||
|
||||
func Bind(fd int, sa Sockaddr) (errno int) {
|
||||
ptr, n, err := sa.sockaddr()
|
||||
if err != 0 {
|
||||
return err
|
||||
}
|
||||
return bind(fd, ptr, n)
|
||||
}
|
||||
|
||||
func Connect(fd int, sa Sockaddr) (errno int) {
|
||||
ptr, n, err := sa.sockaddr()
|
||||
if err != 0 {
|
||||
return err
|
||||
}
|
||||
return connect(fd, ptr, n)
|
||||
}
|
||||
|
||||
func Socket(domain, typ, proto int) (fd, errno int) {
|
||||
if domain == AF_INET6 && SocketDisableIPv6 {
|
||||
return -1, EAFNOSUPPORT
|
||||
}
|
||||
fd, errno = socket(domain, typ, proto)
|
||||
return
|
||||
}
|
||||
|
||||
func SetsockoptInt(fd, level, opt int, value int) (errno int) {
|
||||
var n = int32(value)
|
||||
return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(&n)), 4)
|
||||
}
|
||||
|
||||
func SetsockoptTimeval(fd, level, opt int, tv *Timeval) (errno int) {
|
||||
return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(tv)), unsafe.Sizeof(*tv))
|
||||
}
|
||||
|
||||
func SetsockoptLinger(fd, level, opt int, l *Linger) (errno int) {
|
||||
return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(l)), unsafe.Sizeof(*l))
|
||||
}
|
||||
|
||||
func SetsockoptString(fd, level, opt int, s string) (errno int) {
|
||||
return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(&[]byte(s)[0])), len(s))
|
||||
}
|
||||
|
||||
//sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, errno int)
|
||||
|
||||
func Recvfrom(fd int, p []byte, flags int) (n int, from Sockaddr, errno int) {
|
||||
var rsa RawSockaddrAny
|
||||
var len _Socklen = SizeofSockaddrAny
|
||||
if n, errno = recvfrom(fd, p, flags, &rsa, &len); errno != 0 {
|
||||
return
|
||||
}
|
||||
from, errno = anyToSockaddr(&rsa)
|
||||
return
|
||||
}
|
||||
|
||||
//sys sendto(s int, buf []byte, flags int, to uintptr, addrlen _Socklen) (errno int)
|
||||
|
||||
func Sendto(fd int, p []byte, flags int, to Sockaddr) (errno int) {
|
||||
ptr, n, err := to.sockaddr()
|
||||
if err != 0 {
|
||||
return err
|
||||
}
|
||||
return sendto(fd, p, flags, ptr, n)
|
||||
}
|
||||
|
||||
//sys kevent(kq int, change uintptr, nchange int, event uintptr, nevent int, timeout *Timespec) (n int, errno int)
|
||||
|
||||
func Kevent(kq int, changes, events []Kevent_t, timeout *Timespec) (n int, errno int) {
|
||||
var change, event uintptr
|
||||
if len(changes) > 0 {
|
||||
change = uintptr(unsafe.Pointer(&changes[0]))
|
||||
}
|
||||
if len(events) > 0 {
|
||||
event = uintptr(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) (errno int) = SYS___SYSCTL
|
||||
|
||||
// Translate "kern.hostname" to []_C_int{0,1,2,3}.
|
||||
func nametomib(name string) (mib []_C_int, errno int) {
|
||||
const CTL_MAXNAME = 12
|
||||
const siz = uintptr(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 := StringByteSlice(name)
|
||||
|
||||
// Magic sysctl: "setting" 0.3 to a string name
|
||||
// lets you read back the array of integers form.
|
||||
if errno = sysctl([]_C_int{0, 3}, p, &n, &bytes[0], uintptr(len(name))); errno != 0 {
|
||||
return nil, errno
|
||||
}
|
||||
return buf[0 : n/siz], 0
|
||||
}
|
||||
|
||||
func Sysctl(name string) (value string, errno int) {
|
||||
// Translate name to mib number.
|
||||
mib, errno := nametomib(name)
|
||||
if errno != 0 {
|
||||
return "", errno
|
||||
}
|
||||
|
||||
// Find size.
|
||||
n := uintptr(0)
|
||||
if errno = sysctl(mib, nil, &n, nil, 0); errno != 0 {
|
||||
return "", errno
|
||||
}
|
||||
if n == 0 {
|
||||
return "", 0
|
||||
}
|
||||
|
||||
// Read into buffer of that size.
|
||||
buf := make([]byte, n)
|
||||
if errno = sysctl(mib, &buf[0], &n, nil, 0); errno != 0 {
|
||||
return "", errno
|
||||
}
|
||||
|
||||
// Throw away terminating NUL.
|
||||
if n > 0 && buf[n-1] == '\x00' {
|
||||
n--
|
||||
}
|
||||
return string(buf[0:n]), 0
|
||||
}
|
||||
|
||||
func SysctlUint32(name string) (value uint32, errno int) {
|
||||
// Translate name to mib number.
|
||||
mib, errno := nametomib(name)
|
||||
if errno != 0 {
|
||||
return 0, errno
|
||||
}
|
||||
|
||||
// Read into buffer of that size.
|
||||
n := uintptr(4)
|
||||
buf := make([]byte, 4)
|
||||
if errno = sysctl(mib, &buf[0], &n, nil, 0); errno != 0 {
|
||||
return 0, errno
|
||||
}
|
||||
if n != 4 {
|
||||
return 0, EIO
|
||||
}
|
||||
return *(*uint32)(unsafe.Pointer(&buf[0])), 0
|
||||
}
|
||||
|
||||
//sys kill(pid int, signum int, posix int) (errno int)
|
||||
|
||||
func Kill(pid int, signum int) (errno int) { return kill(pid, signum, 1) }
|
||||
|
||||
// TODO: wrap
|
||||
// Acct(name nil-string) (errno int)
|
||||
// Futimes(fd int, timeval *Timeval) (errno int) // Pointer to 2 timevals!
|
||||
// Gethostuuid(uuid *byte, timeout *Timespec) (errno int)
|
||||
// Getsockopt(s int, level int, name int, val *byte, vallen *int) (errno int)
|
||||
// Madvise(addr *byte, len int, behav int) (errno int)
|
||||
// Mprotect(addr *byte, len int, prot int) (errno int)
|
||||
// Msync(addr *byte, len int, flags int) (errno int)
|
||||
// Munmap(addr *byte, len int) (errno int)
|
||||
// Ptrace(req int, pid int, addr uintptr, data int) (ret uintptr, errno int)
|
||||
// Recvmsg(s int, msg *Msghdr, flags int) (n int, errno int)
|
||||
// Sendmsg(s int, msg *Msghdr, flags int) (n int, errno int)
|
||||
// Utimes(path string, timeval *Timeval) (errno int) // Pointer to 2 timevals!
|
||||
//sys fcntl(fd int, cmd int, arg int) (val int, errno int)
|
||||
|
||||
|
||||
/*
|
||||
* Exposed directly
|
||||
*/
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
// Copyright 2009 The Go Authors. All rights reserved.
|
||||
// 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.
|
||||
|
||||
@ -6,473 +6,14 @@
|
||||
// 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.
|
||||
// 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 syscall
|
||||
|
||||
import "unsafe"
|
||||
|
||||
const OS = "freebsd"
|
||||
|
||||
/*
|
||||
* Pseudo-system calls
|
||||
*/
|
||||
// The const provides a compile-time constant so clients
|
||||
// can adjust to whether there is a working Getwd and avoid
|
||||
// even linking this function into the binary. See ../os/getwd.go.
|
||||
const ImplementsGetwd = false
|
||||
|
||||
func Getwd() (string, int) { return "", ENOTSUP }
|
||||
|
||||
|
||||
/*
|
||||
* Wrapped
|
||||
*/
|
||||
|
||||
//sys getgroups(ngid int, gid *_Gid_t) (n int, errno int)
|
||||
//sys setgroups(ngid int, gid *_Gid_t) (errno int)
|
||||
|
||||
func Getgroups() (gids []int, errno int) {
|
||||
n, err := getgroups(0, nil)
|
||||
if err != 0 {
|
||||
return nil, errno
|
||||
}
|
||||
if n == 0 {
|
||||
return nil, 0
|
||||
}
|
||||
|
||||
// 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 != 0 {
|
||||
return nil, errno
|
||||
}
|
||||
gids = make([]int, n)
|
||||
for i, v := range a[0:n] {
|
||||
gids[i] = int(v)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func Setgroups(gids []int) (errno int) {
|
||||
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])
|
||||
}
|
||||
|
||||
// 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() int {
|
||||
sig := int(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 && w>>shift != SIGSTOP }
|
||||
|
||||
func (w WaitStatus) Continued() bool { return w&mask == stopped && w>>shift == SIGSTOP }
|
||||
|
||||
func (w WaitStatus) StopSignal() int {
|
||||
if !w.Stopped() {
|
||||
return -1
|
||||
}
|
||||
return int(w>>shift) & 0xFF
|
||||
}
|
||||
|
||||
func (w WaitStatus) TrapCause() int {
|
||||
// Darwin doesn't have trap causes
|
||||
return -1
|
||||
}
|
||||
|
||||
//sys wait4(pid int, wstatus *_C_int, options int, rusage *Rusage) (wpid int, errno int)
|
||||
|
||||
func Wait4(pid int, wstatus *WaitStatus, options int, rusage *Rusage) (wpid int, errno int) {
|
||||
var status _C_int
|
||||
wpid, errno = wait4(pid, &status, options, rusage)
|
||||
if wstatus != nil {
|
||||
*wstatus = WaitStatus(status)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
//sys pipe() (r int, w int, errno int)
|
||||
|
||||
func Pipe(p []int) (errno int) {
|
||||
if len(p) != 2 {
|
||||
return EINVAL
|
||||
}
|
||||
p[0], p[1], errno = pipe()
|
||||
return
|
||||
}
|
||||
|
||||
func Sleep(ns int64) (errno int) {
|
||||
tv := NsecToTimeval(ns)
|
||||
return Select(0, nil, nil, nil, &tv)
|
||||
}
|
||||
|
||||
//sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, errno int)
|
||||
//sys bind(s int, addr uintptr, addrlen _Socklen) (errno int)
|
||||
//sys connect(s int, addr uintptr, addrlen _Socklen) (errno int)
|
||||
//sys socket(domain int, typ int, proto int) (fd int, errno int)
|
||||
//sys setsockopt(s int, level int, name int, val uintptr, vallen int) (errno int)
|
||||
//sys getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (errno int)
|
||||
//sys getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (errno int)
|
||||
//sys Shutdown(s int, how int) (errno int)
|
||||
|
||||
// For testing: clients can set this flag to force
|
||||
// creation of IPv6 sockets to return EAFNOSUPPORT.
|
||||
var SocketDisableIPv6 bool
|
||||
|
||||
type Sockaddr interface {
|
||||
sockaddr() (ptr uintptr, len _Socklen, errno int) // lowercase; only we can define Sockaddrs
|
||||
}
|
||||
|
||||
type SockaddrInet4 struct {
|
||||
Port int
|
||||
Addr [4]byte
|
||||
raw RawSockaddrInet4
|
||||
}
|
||||
|
||||
func (sa *SockaddrInet4) sockaddr() (uintptr, _Socklen, int) {
|
||||
if sa.Port < 0 || sa.Port > 0xFFFF {
|
||||
return 0, 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 uintptr(unsafe.Pointer(&sa.raw)), _Socklen(sa.raw.Len), 0
|
||||
}
|
||||
|
||||
type SockaddrInet6 struct {
|
||||
Port int
|
||||
Addr [16]byte
|
||||
raw RawSockaddrInet6
|
||||
}
|
||||
|
||||
func (sa *SockaddrInet6) sockaddr() (uintptr, _Socklen, int) {
|
||||
if sa.Port < 0 || sa.Port > 0xFFFF {
|
||||
return 0, 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)
|
||||
for i := 0; i < len(sa.Addr); i++ {
|
||||
sa.raw.Addr[i] = sa.Addr[i]
|
||||
}
|
||||
return uintptr(unsafe.Pointer(&sa.raw)), _Socklen(sa.raw.Len), 0
|
||||
}
|
||||
|
||||
type SockaddrUnix struct {
|
||||
Name string
|
||||
raw RawSockaddrUnix
|
||||
}
|
||||
|
||||
func (sa *SockaddrUnix) sockaddr() (uintptr, _Socklen, int) {
|
||||
name := sa.Name
|
||||
n := len(name)
|
||||
if n >= len(sa.raw.Path) || n == 0 {
|
||||
return 0, 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 uintptr(unsafe.Pointer(&sa.raw)), _Socklen(sa.raw.Len), 0
|
||||
}
|
||||
|
||||
func anyToSockaddr(rsa *RawSockaddrAny) (Sockaddr, int) {
|
||||
switch rsa.Addr.Family {
|
||||
case AF_UNIX:
|
||||
pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa))
|
||||
if pp.Len < 3 || pp.Len > SizeofSockaddrUnix {
|
||||
return nil, EINVAL
|
||||
}
|
||||
sa := new(SockaddrUnix)
|
||||
n := int(pp.Len) - 3 // subtract leading Family, Len, terminating NUL
|
||||
for i := 0; i < n; i++ {
|
||||
if pp.Path[i] == 0 {
|
||||
// found early NUL; assume Len is overestimating
|
||||
n = i
|
||||
break
|
||||
}
|
||||
}
|
||||
bytes := (*[len(pp.Path)]byte)(unsafe.Pointer(&pp.Path[0]))
|
||||
sa.Name = string(bytes[0:n])
|
||||
return sa, 0
|
||||
|
||||
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, 0
|
||||
|
||||
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])
|
||||
for i := 0; i < len(sa.Addr); i++ {
|
||||
sa.Addr[i] = pp.Addr[i]
|
||||
}
|
||||
return sa, 0
|
||||
}
|
||||
return nil, EAFNOSUPPORT
|
||||
}
|
||||
|
||||
func Accept(fd int) (nfd int, sa Sockaddr, errno int) {
|
||||
var rsa RawSockaddrAny
|
||||
var len _Socklen = SizeofSockaddrAny
|
||||
nfd, errno = accept(fd, &rsa, &len)
|
||||
if errno != 0 {
|
||||
return
|
||||
}
|
||||
sa, errno = anyToSockaddr(&rsa)
|
||||
if errno != 0 {
|
||||
Close(nfd)
|
||||
nfd = 0
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func Getsockname(fd int) (sa Sockaddr, errno int) {
|
||||
var rsa RawSockaddrAny
|
||||
var len _Socklen = SizeofSockaddrAny
|
||||
if errno = getsockname(fd, &rsa, &len); errno != 0 {
|
||||
return
|
||||
}
|
||||
return anyToSockaddr(&rsa)
|
||||
}
|
||||
|
||||
func Getpeername(fd int) (sa Sockaddr, errno int) {
|
||||
var rsa RawSockaddrAny
|
||||
var len _Socklen = SizeofSockaddrAny
|
||||
if errno = getpeername(fd, &rsa, &len); errno != 0 {
|
||||
return
|
||||
}
|
||||
return anyToSockaddr(&rsa)
|
||||
}
|
||||
|
||||
func Bind(fd int, sa Sockaddr) (errno int) {
|
||||
ptr, n, err := sa.sockaddr()
|
||||
if err != 0 {
|
||||
return err
|
||||
}
|
||||
return bind(fd, ptr, n)
|
||||
}
|
||||
|
||||
func Connect(fd int, sa Sockaddr) (errno int) {
|
||||
ptr, n, err := sa.sockaddr()
|
||||
if err != 0 {
|
||||
return err
|
||||
}
|
||||
return connect(fd, ptr, n)
|
||||
}
|
||||
|
||||
func Socket(domain, typ, proto int) (fd, errno int) {
|
||||
if domain == AF_INET6 && SocketDisableIPv6 {
|
||||
return -1, EAFNOSUPPORT
|
||||
}
|
||||
fd, errno = socket(domain, typ, proto)
|
||||
return
|
||||
}
|
||||
|
||||
func SetsockoptInt(fd, level, opt int, value int) (errno int) {
|
||||
var n = int32(value)
|
||||
return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(&n)), 4)
|
||||
}
|
||||
|
||||
func SetsockoptTimeval(fd, level, opt int, tv *Timeval) (errno int) {
|
||||
return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(tv)), unsafe.Sizeof(*tv))
|
||||
}
|
||||
|
||||
func SetsockoptLinger(fd, level, opt int, l *Linger) (errno int) {
|
||||
return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(l)), unsafe.Sizeof(*l))
|
||||
}
|
||||
|
||||
func SetsockoptString(fd, level, opt int, s string) (errno int) {
|
||||
return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(&[]byte(s)[0])), len(s))
|
||||
}
|
||||
|
||||
//sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, errno int)
|
||||
|
||||
func Recvfrom(fd int, p []byte, flags int) (n int, from Sockaddr, errno int) {
|
||||
var rsa RawSockaddrAny
|
||||
var len _Socklen = SizeofSockaddrAny
|
||||
if n, errno = recvfrom(fd, p, flags, &rsa, &len); errno != 0 {
|
||||
return
|
||||
}
|
||||
from, errno = anyToSockaddr(&rsa)
|
||||
return
|
||||
}
|
||||
|
||||
//sys sendto(s int, buf []byte, flags int, to uintptr, addrlen _Socklen) (errno int)
|
||||
|
||||
func Sendto(fd int, p []byte, flags int, to Sockaddr) (errno int) {
|
||||
ptr, n, err := to.sockaddr()
|
||||
if err != 0 {
|
||||
return err
|
||||
}
|
||||
return sendto(fd, p, flags, ptr, n)
|
||||
}
|
||||
|
||||
//sys kevent(kq int, change uintptr, nchange int, event uintptr, nevent int, timeout *Timespec) (n int, errno int)
|
||||
|
||||
func Kevent(kq int, changes, events []Kevent_t, timeout *Timespec) (n int, errno int) {
|
||||
var change, event uintptr
|
||||
if len(changes) > 0 {
|
||||
change = uintptr(unsafe.Pointer(&changes[0]))
|
||||
}
|
||||
if len(events) > 0 {
|
||||
event = uintptr(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) (errno int) = SYS___SYSCTL
|
||||
|
||||
// Translate "kern.hostname" to []_C_int{0,1,2,3}.
|
||||
func nametomib(name string) (mib []_C_int, errno int) {
|
||||
const CTL_MAXNAME = 12
|
||||
const siz = uintptr(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 := StringByteSlice(name)
|
||||
|
||||
// Magic sysctl: "setting" 0.3 to a string name
|
||||
// lets you read back the array of integers form.
|
||||
if errno = sysctl([]_C_int{0, 3}, p, &n, &bytes[0], uintptr(len(name))); errno != 0 {
|
||||
return nil, errno
|
||||
}
|
||||
return buf[0 : n/siz], 0
|
||||
}
|
||||
|
||||
func Sysctl(name string) (value string, errno int) {
|
||||
// Translate name to mib number.
|
||||
mib, errno := nametomib(name)
|
||||
if errno != 0 {
|
||||
return "", errno
|
||||
}
|
||||
|
||||
// Find size.
|
||||
n := uintptr(0)
|
||||
if errno = sysctl(mib, nil, &n, nil, 0); errno != 0 {
|
||||
return "", errno
|
||||
}
|
||||
if n == 0 {
|
||||
return "", 0
|
||||
}
|
||||
|
||||
// Read into buffer of that size.
|
||||
buf := make([]byte, n)
|
||||
if errno = sysctl(mib, &buf[0], &n, nil, 0); errno != 0 {
|
||||
return "", errno
|
||||
}
|
||||
|
||||
// Throw away terminating NUL.
|
||||
if n > 0 && buf[n-1] == '\x00' {
|
||||
n--
|
||||
}
|
||||
return string(buf[0:n]), 0
|
||||
}
|
||||
|
||||
func SysctlUint32(name string) (value uint32, errno int) {
|
||||
// Translate name to mib number.
|
||||
mib, errno := nametomib(name)
|
||||
if errno != 0 {
|
||||
return 0, errno
|
||||
}
|
||||
|
||||
// Read into buffer of that size.
|
||||
n := uintptr(4)
|
||||
buf := make([]byte, 4)
|
||||
if errno = sysctl(mib, &buf[0], &n, nil, 0); errno != 0 {
|
||||
return 0, errno
|
||||
}
|
||||
if n != 4 {
|
||||
return 0, EIO
|
||||
}
|
||||
return *(*uint32)(unsafe.Pointer(&buf[0])), 0
|
||||
}
|
||||
|
||||
// TODO: wrap
|
||||
// Acct(name nil-string) (errno int)
|
||||
// Futimes(fd int, timeval *Timeval) (errno int) // Pointer to 2 timevals!
|
||||
// Gethostuuid(uuid *byte, timeout *Timespec) (errno int)
|
||||
// Getsockopt(s int, level int, name int, val *byte, vallen *int) (errno int)
|
||||
// Madvise(addr *byte, len int, behav int) (errno int)
|
||||
// Mprotect(addr *byte, len int, prot int) (errno int)
|
||||
// Msync(addr *byte, len int, flags int) (errno int)
|
||||
// Munmap(addr *byte, len int) (errno int)
|
||||
// Ptrace(req int, pid int, addr uintptr, data int) (ret uintptr, errno int)
|
||||
// Recvmsg(s int, msg *Msghdr, flags int) (n int, errno int)
|
||||
// Sendmsg(s int, msg *Msghdr, flags int) (n int, errno int)
|
||||
// Utimes(path string, timeval *Timeval) (errno int) // Pointer to 2 timevals!
|
||||
//sys fcntl(fd int, cmd int, arg int) (val int, errno int)
|
||||
|
||||
|
||||
/*
|
||||
* Exposed directly
|
||||
*/
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
// mksyscall.sh -l32 syscall_darwin.go syscall_darwin_386.go
|
||||
// mksyscall.sh -l32 syscall_bsd.go syscall_darwin.go syscall_darwin_386.go
|
||||
// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT
|
||||
|
||||
package syscall
|
||||
@ -121,15 +121,15 @@ func sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr)
|
||||
return
|
||||
}
|
||||
|
||||
func kill(pid int, signum int, posix int) (errno int) {
|
||||
_, _, e1 := Syscall(SYS_KILL, uintptr(pid), uintptr(signum), uintptr(posix))
|
||||
func fcntl(fd int, cmd int, arg int) (val int, errno int) {
|
||||
r0, _, e1 := Syscall(SYS_FCNTL, uintptr(fd), uintptr(cmd), uintptr(arg))
|
||||
val = int(r0)
|
||||
errno = int(e1)
|
||||
return
|
||||
}
|
||||
|
||||
func fcntl(fd int, cmd int, arg int) (val int, errno int) {
|
||||
r0, _, e1 := Syscall(SYS_FCNTL, uintptr(fd), uintptr(cmd), uintptr(arg))
|
||||
val = int(r0)
|
||||
func kill(pid int, signum int, posix int) (errno int) {
|
||||
_, _, e1 := Syscall(SYS_KILL, uintptr(pid), uintptr(signum), uintptr(posix))
|
||||
errno = int(e1)
|
||||
return
|
||||
}
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
// mksyscall.sh syscall_darwin.go syscall_darwin_amd64.go
|
||||
// mksyscall.sh syscall_bsd.go syscall_darwin.go syscall_darwin_amd64.go
|
||||
// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT
|
||||
|
||||
package syscall
|
||||
@ -121,15 +121,15 @@ func sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr)
|
||||
return
|
||||
}
|
||||
|
||||
func kill(pid int, signum int, posix int) (errno int) {
|
||||
_, _, e1 := Syscall(SYS_KILL, uintptr(pid), uintptr(signum), uintptr(posix))
|
||||
func fcntl(fd int, cmd int, arg int) (val int, errno int) {
|
||||
r0, _, e1 := Syscall(SYS_FCNTL, uintptr(fd), uintptr(cmd), uintptr(arg))
|
||||
val = int(r0)
|
||||
errno = int(e1)
|
||||
return
|
||||
}
|
||||
|
||||
func fcntl(fd int, cmd int, arg int) (val int, errno int) {
|
||||
r0, _, e1 := Syscall(SYS_FCNTL, uintptr(fd), uintptr(cmd), uintptr(arg))
|
||||
val = int(r0)
|
||||
func kill(pid int, signum int, posix int) (errno int) {
|
||||
_, _, e1 := Syscall(SYS_KILL, uintptr(pid), uintptr(signum), uintptr(posix))
|
||||
errno = int(e1)
|
||||
return
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user