mirror of
https://github.com/go-gitea/gitea
synced 2024-11-17 23:54:25 +00:00
b6a95a8cb3
* Dropped unused codekit config * Integrated dynamic and static bindata for public * Ignore public bindata * Add a general generate make task * Integrated flexible public assets into web command * Updated vendoring, added all missiong govendor deps * Made the linter happy with the bindata and dynamic code * Moved public bindata definition to modules directory * Ignoring the new bindata path now * Updated to the new public modules import path * Updated public bindata command and drop the new prefix
629 lines
16 KiB
Go
629 lines
16 KiB
Go
// Copyright 2009 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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// +build darwin dragonfly freebsd netbsd openbsd
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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 unix
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import (
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"runtime"
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"syscall"
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"unsafe"
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)
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/*
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* Wrapped
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*/
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//sysnb getgroups(ngid int, gid *_Gid_t) (n int, err error)
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//sysnb setgroups(ngid int, gid *_Gid_t) (err error)
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func Getgroups() (gids []int, err error) {
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n, err := getgroups(0, nil)
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if err != nil {
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return nil, err
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}
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if n == 0 {
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return nil, nil
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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 != nil {
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return nil, err
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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) (err error) {
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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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func ReadDirent(fd int, buf []byte) (n int, err error) {
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// Final argument is (basep *uintptr) and the syscall doesn't take nil.
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// 64 bits should be enough. (32 bits isn't even on 386). Since the
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// actual system call is getdirentries64, 64 is a good guess.
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// TODO(rsc): Can we use a single global basep for all calls?
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var base = (*uintptr)(unsafe.Pointer(new(uint64)))
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return Getdirentries(fd, buf, base)
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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() syscall.Signal {
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sig := syscall.Signal(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 && syscall.Signal(w>>shift) != SIGSTOP }
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func (w WaitStatus) Continued() bool { return w&mask == stopped && syscall.Signal(w>>shift) == SIGSTOP }
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func (w WaitStatus) StopSignal() syscall.Signal {
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if !w.Stopped() {
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return -1
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}
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return syscall.Signal(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, err error)
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func Wait4(pid int, wstatus *WaitStatus, options int, rusage *Rusage) (wpid int, err error) {
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var status _C_int
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wpid, err = 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 accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error)
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//sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
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//sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
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//sysnb socket(domain int, typ int, proto int) (fd int, err error)
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//sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error)
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//sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error)
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//sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
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//sysnb getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
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//sys Shutdown(s int, how int) (err error)
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func (sa *SockaddrInet4) sockaddr() (unsafe.Pointer, _Socklen, error) {
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if sa.Port < 0 || sa.Port > 0xFFFF {
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return nil, 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 unsafe.Pointer(&sa.raw), _Socklen(sa.raw.Len), nil
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}
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func (sa *SockaddrInet6) sockaddr() (unsafe.Pointer, _Socklen, error) {
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if sa.Port < 0 || sa.Port > 0xFFFF {
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return nil, 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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sa.raw.Scope_id = sa.ZoneId
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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 unsafe.Pointer(&sa.raw), _Socklen(sa.raw.Len), nil
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}
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func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, _Socklen, error) {
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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 nil, 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 unsafe.Pointer(&sa.raw), _Socklen(sa.raw.Len), nil
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}
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func (sa *SockaddrDatalink) sockaddr() (unsafe.Pointer, _Socklen, error) {
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if sa.Index == 0 {
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return nil, 0, EINVAL
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}
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sa.raw.Len = sa.Len
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sa.raw.Family = AF_LINK
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sa.raw.Index = sa.Index
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sa.raw.Type = sa.Type
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sa.raw.Nlen = sa.Nlen
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sa.raw.Alen = sa.Alen
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sa.raw.Slen = sa.Slen
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for i := 0; i < len(sa.raw.Data); i++ {
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sa.raw.Data[i] = sa.Data[i]
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}
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return unsafe.Pointer(&sa.raw), SizeofSockaddrDatalink, nil
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}
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func anyToSockaddr(rsa *RawSockaddrAny) (Sockaddr, error) {
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switch rsa.Addr.Family {
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case AF_LINK:
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pp := (*RawSockaddrDatalink)(unsafe.Pointer(rsa))
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sa := new(SockaddrDatalink)
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sa.Len = pp.Len
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sa.Family = pp.Family
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sa.Index = pp.Index
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sa.Type = pp.Type
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sa.Nlen = pp.Nlen
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sa.Alen = pp.Alen
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sa.Slen = pp.Slen
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for i := 0; i < len(sa.Data); i++ {
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sa.Data[i] = pp.Data[i]
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}
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return sa, nil
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case AF_UNIX:
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pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa))
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if pp.Len < 2 || 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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// Some BSDs include the trailing NUL in the length, whereas
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// others do not. Work around this by subtracting the leading
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// family and len. The path is then scanned to see if a NUL
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// terminator still exists within the length.
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n := int(pp.Len) - 2 // subtract leading Family, Len
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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 included the NUL
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// or was 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 := (*[10000]byte)(unsafe.Pointer(&pp.Path[0]))[0:n]
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sa.Name = string(bytes)
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return sa, nil
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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, nil
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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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sa.ZoneId = pp.Scope_id
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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, nil
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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, err error) {
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var rsa RawSockaddrAny
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var len _Socklen = SizeofSockaddrAny
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nfd, err = accept(fd, &rsa, &len)
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if err != nil {
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return
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}
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if runtime.GOOS == "darwin" && len == 0 {
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// Accepted socket has no address.
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// This is likely due to a bug in xnu kernels,
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// where instead of ECONNABORTED error socket
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// is accepted, but has no address.
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Close(nfd)
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return 0, nil, ECONNABORTED
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}
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sa, err = anyToSockaddr(&rsa)
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if err != nil {
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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, err error) {
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var rsa RawSockaddrAny
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var len _Socklen = SizeofSockaddrAny
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if err = getsockname(fd, &rsa, &len); err != nil {
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return
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}
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// TODO(jsing): DragonFly has a "bug" (see issue 3349), which should be
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// reported upstream.
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if runtime.GOOS == "dragonfly" && rsa.Addr.Family == AF_UNSPEC && rsa.Addr.Len == 0 {
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rsa.Addr.Family = AF_UNIX
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rsa.Addr.Len = SizeofSockaddrUnix
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}
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return anyToSockaddr(&rsa)
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}
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//sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error)
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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 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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//sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error)
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//sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error)
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//sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error)
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func Recvmsg(fd int, p, oob []byte, flags int) (n, oobn int, recvflags int, from Sockaddr, err error) {
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var msg Msghdr
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var rsa RawSockaddrAny
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msg.Name = (*byte)(unsafe.Pointer(&rsa))
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msg.Namelen = uint32(SizeofSockaddrAny)
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var iov Iovec
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if len(p) > 0 {
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iov.Base = (*byte)(unsafe.Pointer(&p[0]))
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iov.SetLen(len(p))
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}
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var dummy byte
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if len(oob) > 0 {
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// receive at least one normal byte
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if len(p) == 0 {
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iov.Base = &dummy
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iov.SetLen(1)
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}
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msg.Control = (*byte)(unsafe.Pointer(&oob[0]))
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msg.SetControllen(len(oob))
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}
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msg.Iov = &iov
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msg.Iovlen = 1
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if n, err = recvmsg(fd, &msg, flags); err != nil {
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return
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}
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oobn = int(msg.Controllen)
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recvflags = int(msg.Flags)
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// source address is only specified if the socket is unconnected
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if rsa.Addr.Family != AF_UNSPEC {
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from, err = anyToSockaddr(&rsa)
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}
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return
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}
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//sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error)
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func Sendmsg(fd int, p, oob []byte, to Sockaddr, flags int) (err error) {
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_, err = SendmsgN(fd, p, oob, to, flags)
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return
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}
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func SendmsgN(fd int, p, oob []byte, to Sockaddr, flags int) (n int, err error) {
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var ptr unsafe.Pointer
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var salen _Socklen
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if to != nil {
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ptr, salen, err = to.sockaddr()
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if err != nil {
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return 0, err
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}
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}
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var msg Msghdr
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msg.Name = (*byte)(unsafe.Pointer(ptr))
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msg.Namelen = uint32(salen)
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var iov Iovec
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if len(p) > 0 {
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iov.Base = (*byte)(unsafe.Pointer(&p[0]))
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iov.SetLen(len(p))
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}
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var dummy byte
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if len(oob) > 0 {
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// send at least one normal byte
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if len(p) == 0 {
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iov.Base = &dummy
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iov.SetLen(1)
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}
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msg.Control = (*byte)(unsafe.Pointer(&oob[0]))
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msg.SetControllen(len(oob))
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}
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msg.Iov = &iov
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msg.Iovlen = 1
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if n, err = sendmsg(fd, &msg, flags); err != nil {
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return 0, err
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}
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if len(oob) > 0 && len(p) == 0 {
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n = 0
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}
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return n, nil
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}
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|
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//sys kevent(kq int, change unsafe.Pointer, nchange int, event unsafe.Pointer, nevent int, timeout *Timespec) (n int, err error)
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|
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func Kevent(kq int, changes, events []Kevent_t, timeout *Timespec) (n int, err error) {
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var change, event unsafe.Pointer
|
|
if len(changes) > 0 {
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change = unsafe.Pointer(&changes[0])
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}
|
|
if len(events) > 0 {
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event = unsafe.Pointer(&events[0])
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}
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return kevent(kq, change, len(changes), event, len(events), timeout)
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}
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//sys sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL
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|
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// sysctlmib translates name to mib number and appends any additional args.
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|
func sysctlmib(name string, args ...int) ([]_C_int, error) {
|
|
// Translate name to mib number.
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mib, err := nametomib(name)
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|
if err != nil {
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return nil, err
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}
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|
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for _, a := range args {
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mib = append(mib, _C_int(a))
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}
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return mib, nil
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}
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|
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func Sysctl(name string) (string, error) {
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return SysctlArgs(name)
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}
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|
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func SysctlArgs(name string, args ...int) (string, error) {
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mib, err := sysctlmib(name, args...)
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|
if err != nil {
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return "", err
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}
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|
|
|
// Find size.
|
|
n := uintptr(0)
|
|
if err := sysctl(mib, nil, &n, nil, 0); err != nil {
|
|
return "", err
|
|
}
|
|
if n == 0 {
|
|
return "", nil
|
|
}
|
|
|
|
// Read into buffer of that size.
|
|
buf := make([]byte, n)
|
|
if err := sysctl(mib, &buf[0], &n, nil, 0); err != nil {
|
|
return "", err
|
|
}
|
|
|
|
// 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 {
|
|
return utimes(path, nil)
|
|
}
|
|
// TODO: The BSDs can do utimensat with SYS_UTIMENSAT but it
|
|
// isn't supported by darwin so this uses utimes instead
|
|
if len(ts) != 2 {
|
|
return EINVAL
|
|
}
|
|
// 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])))
|
|
}
|
|
|
|
//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)
|
|
|
|
// TODO: wrap
|
|
// Acct(name nil-string) (err error)
|
|
// Gethostuuid(uuid *byte, timeout *Timespec) (err error)
|
|
// Madvise(addr *byte, len int, behav int) (err error)
|
|
// Mprotect(addr *byte, len int, prot int) (err error)
|
|
// Msync(addr *byte, len int, flags int) (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)
|
|
}
|