647 lines
21 KiB
Go
647 lines
21 KiB
Go
// 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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// Darwin system calls.
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// This file is compiled as ordinary Go code,
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// but it is also input to mksyscall,
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// which parses the //sys lines and generates system call stubs.
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// Note that sometimes we use a lowercase //sys name and wrap
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// it in our own nicer implementation, either here or in
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// syscall_bsd.go or syscall_unix.go.
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package unix
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import (
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"fmt"
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"syscall"
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"unsafe"
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)
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//sys closedir(dir uintptr) (err error)
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//sys readdir_r(dir uintptr, entry *Dirent, result **Dirent) (res Errno)
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func fdopendir(fd int) (dir uintptr, err error) {
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r0, _, e1 := syscall_syscallPtr(libc_fdopendir_trampoline_addr, uintptr(fd), 0, 0)
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dir = uintptr(r0)
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if e1 != 0 {
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err = errnoErr(e1)
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}
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return
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}
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var libc_fdopendir_trampoline_addr uintptr
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//go:cgo_import_dynamic libc_fdopendir fdopendir "/usr/lib/libSystem.B.dylib"
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func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) {
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// Simulate Getdirentries using fdopendir/readdir_r/closedir.
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// We store the number of entries to skip in the seek
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// offset of fd. See issue #31368.
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// It's not the full required semantics, but should handle the case
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// of calling Getdirentries or ReadDirent repeatedly.
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// It won't handle assigning the results of lseek to *basep, or handle
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// the directory being edited underfoot.
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skip, err := Seek(fd, 0, 1 /* SEEK_CUR */)
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if err != nil {
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return 0, err
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}
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// We need to duplicate the incoming file descriptor
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// because the caller expects to retain control of it, but
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// fdopendir expects to take control of its argument.
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// Just Dup'ing the file descriptor is not enough, as the
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// result shares underlying state. Use Openat to make a really
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// new file descriptor referring to the same directory.
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fd2, err := Openat(fd, ".", O_RDONLY, 0)
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if err != nil {
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return 0, err
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}
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d, err := fdopendir(fd2)
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if err != nil {
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Close(fd2)
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return 0, err
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}
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defer closedir(d)
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var cnt int64
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for {
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var entry Dirent
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var entryp *Dirent
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e := readdir_r(d, &entry, &entryp)
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if e != 0 {
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return n, errnoErr(e)
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}
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if entryp == nil {
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break
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}
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if skip > 0 {
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skip--
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cnt++
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continue
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}
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reclen := int(entry.Reclen)
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if reclen > len(buf) {
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// Not enough room. Return for now.
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// The counter will let us know where we should start up again.
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// Note: this strategy for suspending in the middle and
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// restarting is O(n^2) in the length of the directory. Oh well.
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break
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}
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// Copy entry into return buffer.
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s := unsafe.Slice((*byte)(unsafe.Pointer(&entry)), reclen)
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copy(buf, s)
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buf = buf[reclen:]
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n += reclen
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cnt++
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}
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// Set the seek offset of the input fd to record
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// how many files we've already returned.
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_, err = Seek(fd, cnt, 0 /* SEEK_SET */)
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if err != nil {
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return n, err
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}
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return n, nil
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}
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// SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets.
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type SockaddrDatalink struct {
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Len uint8
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Family uint8
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Index uint16
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Type uint8
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Nlen uint8
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Alen uint8
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Slen uint8
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Data [12]int8
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raw RawSockaddrDatalink
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}
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// SockaddrCtl implements the Sockaddr interface for AF_SYSTEM type sockets.
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type SockaddrCtl struct {
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ID uint32
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Unit uint32
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raw RawSockaddrCtl
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}
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func (sa *SockaddrCtl) sockaddr() (unsafe.Pointer, _Socklen, error) {
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sa.raw.Sc_len = SizeofSockaddrCtl
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sa.raw.Sc_family = AF_SYSTEM
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sa.raw.Ss_sysaddr = AF_SYS_CONTROL
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sa.raw.Sc_id = sa.ID
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sa.raw.Sc_unit = sa.Unit
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return unsafe.Pointer(&sa.raw), SizeofSockaddrCtl, nil
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}
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// SockaddrVM implements the Sockaddr interface for AF_VSOCK type sockets.
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// SockaddrVM provides access to Darwin VM sockets: a mechanism that enables
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// bidirectional communication between a hypervisor and its guest virtual
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// machines.
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type SockaddrVM struct {
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// CID and Port specify a context ID and port address for a VM socket.
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// Guests have a unique CID, and hosts may have a well-known CID of:
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// - VMADDR_CID_HYPERVISOR: refers to the hypervisor process.
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// - VMADDR_CID_LOCAL: refers to local communication (loopback).
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// - VMADDR_CID_HOST: refers to other processes on the host.
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CID uint32
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Port uint32
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raw RawSockaddrVM
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}
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func (sa *SockaddrVM) sockaddr() (unsafe.Pointer, _Socklen, error) {
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sa.raw.Len = SizeofSockaddrVM
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sa.raw.Family = AF_VSOCK
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sa.raw.Port = sa.Port
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sa.raw.Cid = sa.CID
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return unsafe.Pointer(&sa.raw), SizeofSockaddrVM, nil
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}
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func anyToSockaddrGOOS(fd int, rsa *RawSockaddrAny) (Sockaddr, error) {
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switch rsa.Addr.Family {
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case AF_SYSTEM:
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pp := (*RawSockaddrCtl)(unsafe.Pointer(rsa))
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if pp.Ss_sysaddr == AF_SYS_CONTROL {
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sa := new(SockaddrCtl)
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sa.ID = pp.Sc_id
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sa.Unit = pp.Sc_unit
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return sa, nil
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}
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case AF_VSOCK:
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pp := (*RawSockaddrVM)(unsafe.Pointer(rsa))
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sa := &SockaddrVM{
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CID: pp.Cid,
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Port: pp.Port,
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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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// Some external packages rely on SYS___SYSCTL being defined to implement their
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// own sysctl wrappers. Provide it here, even though direct syscalls are no
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// longer supported on darwin.
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const SYS___SYSCTL = SYS_SYSCTL
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// Translate "kern.hostname" to []_C_int{0,1,2,3}.
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func nametomib(name string) (mib []_C_int, err error) {
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const siz = unsafe.Sizeof(mib[0])
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// NOTE(rsc): It seems strange to set the buffer to have
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// size CTL_MAXNAME+2 but use only CTL_MAXNAME
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// as the size. I don't know why the +2 is here, but the
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// kernel uses +2 for its own implementation of this function.
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// I am scared that if we don't include the +2 here, the kernel
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// will silently write 2 words farther than we specify
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// and we'll get memory corruption.
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var buf [CTL_MAXNAME + 2]_C_int
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n := uintptr(CTL_MAXNAME) * siz
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p := (*byte)(unsafe.Pointer(&buf[0]))
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bytes, err := ByteSliceFromString(name)
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if err != nil {
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return nil, err
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}
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// Magic sysctl: "setting" 0.3 to a string name
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// lets you read back the array of integers form.
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if err = sysctl([]_C_int{0, 3}, p, &n, &bytes[0], uintptr(len(name))); err != nil {
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return nil, err
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}
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return buf[0 : n/siz], nil
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}
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func direntIno(buf []byte) (uint64, bool) {
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return readInt(buf, unsafe.Offsetof(Dirent{}.Ino), unsafe.Sizeof(Dirent{}.Ino))
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}
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func direntReclen(buf []byte) (uint64, bool) {
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return readInt(buf, unsafe.Offsetof(Dirent{}.Reclen), unsafe.Sizeof(Dirent{}.Reclen))
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}
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func direntNamlen(buf []byte) (uint64, bool) {
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return readInt(buf, unsafe.Offsetof(Dirent{}.Namlen), unsafe.Sizeof(Dirent{}.Namlen))
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}
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func PtraceAttach(pid int) (err error) { return ptrace(PT_ATTACH, pid, 0, 0) }
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func PtraceDetach(pid int) (err error) { return ptrace(PT_DETACH, pid, 0, 0) }
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func PtraceDenyAttach() (err error) { return ptrace(PT_DENY_ATTACH, 0, 0, 0) }
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//sysnb pipe(p *[2]int32) (err error)
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func Pipe(p []int) (err error) {
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if len(p) != 2 {
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return EINVAL
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}
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var x [2]int32
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err = pipe(&x)
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if err == nil {
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p[0] = int(x[0])
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p[1] = int(x[1])
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}
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return
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}
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func Getfsstat(buf []Statfs_t, flags int) (n int, err error) {
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var _p0 unsafe.Pointer
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var bufsize uintptr
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if len(buf) > 0 {
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_p0 = unsafe.Pointer(&buf[0])
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bufsize = unsafe.Sizeof(Statfs_t{}) * uintptr(len(buf))
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}
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return getfsstat(_p0, bufsize, flags)
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}
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func xattrPointer(dest []byte) *byte {
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// It's only when dest is set to NULL that the OS X implementations of
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// getxattr() and listxattr() return the current sizes of the named attributes.
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// An empty byte array is not sufficient. To maintain the same behaviour as the
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// linux implementation, we wrap around the system calls and pass in NULL when
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// dest is empty.
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var destp *byte
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if len(dest) > 0 {
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destp = &dest[0]
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}
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return destp
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}
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//sys getxattr(path string, attr string, dest *byte, size int, position uint32, options int) (sz int, err error)
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func Getxattr(path string, attr string, dest []byte) (sz int, err error) {
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return getxattr(path, attr, xattrPointer(dest), len(dest), 0, 0)
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}
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func Lgetxattr(link string, attr string, dest []byte) (sz int, err error) {
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return getxattr(link, attr, xattrPointer(dest), len(dest), 0, XATTR_NOFOLLOW)
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}
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//sys fgetxattr(fd int, attr string, dest *byte, size int, position uint32, options int) (sz int, err error)
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func Fgetxattr(fd int, attr string, dest []byte) (sz int, err error) {
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return fgetxattr(fd, attr, xattrPointer(dest), len(dest), 0, 0)
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}
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//sys setxattr(path string, attr string, data *byte, size int, position uint32, options int) (err error)
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func Setxattr(path string, attr string, data []byte, flags int) (err error) {
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// The parameters for the OS X implementation vary slightly compared to the
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// linux system call, specifically the position parameter:
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//
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// linux:
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// int setxattr(
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// const char *path,
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// const char *name,
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// const void *value,
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// size_t size,
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// int flags
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// );
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//
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// darwin:
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// int setxattr(
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// const char *path,
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// const char *name,
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// void *value,
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// size_t size,
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// u_int32_t position,
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// int options
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// );
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//
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// position specifies the offset within the extended attribute. In the
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// current implementation, only the resource fork extended attribute makes
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// use of this argument. For all others, position is reserved. We simply
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// default to setting it to zero.
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return setxattr(path, attr, xattrPointer(data), len(data), 0, flags)
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}
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func Lsetxattr(link string, attr string, data []byte, flags int) (err error) {
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return setxattr(link, attr, xattrPointer(data), len(data), 0, flags|XATTR_NOFOLLOW)
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}
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//sys fsetxattr(fd int, attr string, data *byte, size int, position uint32, options int) (err error)
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func Fsetxattr(fd int, attr string, data []byte, flags int) (err error) {
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return fsetxattr(fd, attr, xattrPointer(data), len(data), 0, 0)
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}
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//sys removexattr(path string, attr string, options int) (err error)
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func Removexattr(path string, attr string) (err error) {
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// We wrap around and explicitly zero out the options provided to the OS X
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// implementation of removexattr, we do so for interoperability with the
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// linux variant.
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return removexattr(path, attr, 0)
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}
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func Lremovexattr(link string, attr string) (err error) {
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return removexattr(link, attr, XATTR_NOFOLLOW)
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}
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//sys fremovexattr(fd int, attr string, options int) (err error)
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func Fremovexattr(fd int, attr string) (err error) {
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return fremovexattr(fd, attr, 0)
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}
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//sys listxattr(path string, dest *byte, size int, options int) (sz int, err error)
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func Listxattr(path string, dest []byte) (sz int, err error) {
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return listxattr(path, xattrPointer(dest), len(dest), 0)
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}
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func Llistxattr(link string, dest []byte) (sz int, err error) {
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return listxattr(link, xattrPointer(dest), len(dest), XATTR_NOFOLLOW)
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}
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//sys flistxattr(fd int, dest *byte, size int, options int) (sz int, err error)
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func Flistxattr(fd int, dest []byte) (sz int, err error) {
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return flistxattr(fd, xattrPointer(dest), len(dest), 0)
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}
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//sys utimensat(dirfd int, path string, times *[2]Timespec, flags int) (err error)
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/*
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* Wrapped
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*/
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//sys fcntl(fd int, cmd int, arg int) (val int, err error)
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//sys kill(pid int, signum int, posix int) (err error)
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func Kill(pid int, signum syscall.Signal) (err error) { return kill(pid, int(signum), 1) }
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//sys ioctl(fd int, req uint, arg uintptr) (err error)
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//sys ioctlPtr(fd int, req uint, arg unsafe.Pointer) (err error) = SYS_IOCTL
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func IoctlCtlInfo(fd int, ctlInfo *CtlInfo) error {
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return ioctlPtr(fd, CTLIOCGINFO, unsafe.Pointer(ctlInfo))
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}
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// IfreqMTU is struct ifreq used to get or set a network device's MTU.
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type IfreqMTU struct {
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Name [IFNAMSIZ]byte
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MTU int32
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}
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// IoctlGetIfreqMTU performs the SIOCGIFMTU ioctl operation on fd to get the MTU
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// of the network device specified by ifname.
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func IoctlGetIfreqMTU(fd int, ifname string) (*IfreqMTU, error) {
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var ifreq IfreqMTU
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copy(ifreq.Name[:], ifname)
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err := ioctlPtr(fd, SIOCGIFMTU, unsafe.Pointer(&ifreq))
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return &ifreq, err
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}
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// IoctlSetIfreqMTU performs the SIOCSIFMTU ioctl operation on fd to set the MTU
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// of the network device specified by ifreq.Name.
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func IoctlSetIfreqMTU(fd int, ifreq *IfreqMTU) error {
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return ioctlPtr(fd, SIOCSIFMTU, unsafe.Pointer(ifreq))
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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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func Uname(uname *Utsname) error {
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mib := []_C_int{CTL_KERN, KERN_OSTYPE}
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n := unsafe.Sizeof(uname.Sysname)
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if err := sysctl(mib, &uname.Sysname[0], &n, nil, 0); err != nil {
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return err
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}
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mib = []_C_int{CTL_KERN, KERN_HOSTNAME}
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n = unsafe.Sizeof(uname.Nodename)
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if err := sysctl(mib, &uname.Nodename[0], &n, nil, 0); err != nil {
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return err
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}
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mib = []_C_int{CTL_KERN, KERN_OSRELEASE}
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n = unsafe.Sizeof(uname.Release)
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if err := sysctl(mib, &uname.Release[0], &n, nil, 0); err != nil {
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return err
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}
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mib = []_C_int{CTL_KERN, KERN_VERSION}
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n = unsafe.Sizeof(uname.Version)
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if err := sysctl(mib, &uname.Version[0], &n, nil, 0); err != nil {
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return err
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}
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// The version might have newlines or tabs in it, convert them to
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// spaces.
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for i, b := range uname.Version {
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if b == '\n' || b == '\t' {
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if i == len(uname.Version)-1 {
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uname.Version[i] = 0
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} else {
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uname.Version[i] = ' '
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}
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}
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}
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mib = []_C_int{CTL_HW, HW_MACHINE}
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n = unsafe.Sizeof(uname.Machine)
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if err := sysctl(mib, &uname.Machine[0], &n, nil, 0); err != nil {
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return err
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}
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return nil
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}
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func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
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if raceenabled {
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raceReleaseMerge(unsafe.Pointer(&ioSync))
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}
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var length = int64(count)
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err = sendfile(infd, outfd, *offset, &length, nil, 0)
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written = int(length)
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return
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}
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func GetsockoptIPMreqn(fd, level, opt int) (*IPMreqn, error) {
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var value IPMreqn
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vallen := _Socklen(SizeofIPMreqn)
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errno := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen)
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return &value, errno
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}
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func SetsockoptIPMreqn(fd, level, opt int, mreq *IPMreqn) (err error) {
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return setsockopt(fd, level, opt, unsafe.Pointer(mreq), unsafe.Sizeof(*mreq))
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}
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// GetsockoptXucred is a getsockopt wrapper that returns an Xucred struct.
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// The usual level and opt are SOL_LOCAL and LOCAL_PEERCRED, respectively.
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func GetsockoptXucred(fd, level, opt int) (*Xucred, error) {
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x := new(Xucred)
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vallen := _Socklen(SizeofXucred)
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err := getsockopt(fd, level, opt, unsafe.Pointer(x), &vallen)
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return x, err
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}
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func GetsockoptTCPConnectionInfo(fd, level, opt int) (*TCPConnectionInfo, error) {
|
|
var value TCPConnectionInfo
|
|
vallen := _Socklen(SizeofTCPConnectionInfo)
|
|
err := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen)
|
|
return &value, err
|
|
}
|
|
|
|
func SysctlKinfoProc(name string, args ...int) (*KinfoProc, error) {
|
|
mib, err := sysctlmib(name, args...)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
var kinfo KinfoProc
|
|
n := uintptr(SizeofKinfoProc)
|
|
if err := sysctl(mib, (*byte)(unsafe.Pointer(&kinfo)), &n, nil, 0); err != nil {
|
|
return nil, err
|
|
}
|
|
if n != SizeofKinfoProc {
|
|
return nil, EIO
|
|
}
|
|
return &kinfo, nil
|
|
}
|
|
|
|
func SysctlKinfoProcSlice(name string, args ...int) ([]KinfoProc, error) {
|
|
mib, err := sysctlmib(name, args...)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
for {
|
|
// Find size.
|
|
n := uintptr(0)
|
|
if err := sysctl(mib, nil, &n, nil, 0); err != nil {
|
|
return nil, err
|
|
}
|
|
if n == 0 {
|
|
return nil, nil
|
|
}
|
|
if n%SizeofKinfoProc != 0 {
|
|
return nil, fmt.Errorf("sysctl() returned a size of %d, which is not a multiple of %d", n, SizeofKinfoProc)
|
|
}
|
|
|
|
// Read into buffer of that size.
|
|
buf := make([]KinfoProc, n/SizeofKinfoProc)
|
|
if err := sysctl(mib, (*byte)(unsafe.Pointer(&buf[0])), &n, nil, 0); err != nil {
|
|
if err == ENOMEM {
|
|
// Process table grew. Try again.
|
|
continue
|
|
}
|
|
return nil, err
|
|
}
|
|
if n%SizeofKinfoProc != 0 {
|
|
return nil, fmt.Errorf("sysctl() returned a size of %d, which is not a multiple of %d", n, SizeofKinfoProc)
|
|
}
|
|
|
|
// The actual call may return less than the original reported required
|
|
// size so ensure we deal with that.
|
|
return buf[:n/SizeofKinfoProc], nil
|
|
}
|
|
}
|
|
|
|
//sys sendfile(infd int, outfd int, offset int64, len *int64, hdtr unsafe.Pointer, flags int) (err error)
|
|
|
|
//sys shmat(id int, addr uintptr, flag int) (ret uintptr, err error)
|
|
//sys shmctl(id int, cmd int, buf *SysvShmDesc) (result int, err error)
|
|
//sys shmdt(addr uintptr) (err error)
|
|
//sys shmget(key int, size int, flag int) (id int, err error)
|
|
|
|
/*
|
|
* Exposed directly
|
|
*/
|
|
//sys Access(path string, mode uint32) (err error)
|
|
//sys Adjtime(delta *Timeval, olddelta *Timeval) (err error)
|
|
//sys Chdir(path string) (err error)
|
|
//sys Chflags(path string, flags int) (err error)
|
|
//sys Chmod(path string, mode uint32) (err error)
|
|
//sys Chown(path string, uid int, gid int) (err error)
|
|
//sys Chroot(path string) (err error)
|
|
//sys ClockGettime(clockid int32, time *Timespec) (err error)
|
|
//sys Close(fd int) (err error)
|
|
//sys Clonefile(src string, dst string, flags int) (err error)
|
|
//sys Clonefileat(srcDirfd int, src string, dstDirfd int, dst string, flags int) (err error)
|
|
//sys Dup(fd int) (nfd int, err error)
|
|
//sys Dup2(from int, to int) (err error)
|
|
//sys Exchangedata(path1 string, path2 string, options int) (err error)
|
|
//sys Exit(code int)
|
|
//sys Faccessat(dirfd int, path string, mode uint32, flags int) (err error)
|
|
//sys Fchdir(fd int) (err error)
|
|
//sys Fchflags(fd int, flags int) (err error)
|
|
//sys Fchmod(fd int, mode uint32) (err error)
|
|
//sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error)
|
|
//sys Fchown(fd int, uid int, gid int) (err error)
|
|
//sys Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error)
|
|
//sys Fclonefileat(srcDirfd int, dstDirfd int, dst string, flags int) (err error)
|
|
//sys Flock(fd int, how int) (err error)
|
|
//sys Fpathconf(fd int, name int) (val int, err error)
|
|
//sys Fsync(fd int) (err error)
|
|
//sys Ftruncate(fd int, length int64) (err error)
|
|
//sys Getcwd(buf []byte) (n int, err error)
|
|
//sys Getdtablesize() (size int)
|
|
//sysnb Getegid() (egid int)
|
|
//sysnb Geteuid() (uid int)
|
|
//sysnb Getgid() (gid int)
|
|
//sysnb Getpgid(pid int) (pgid int, err error)
|
|
//sysnb Getpgrp() (pgrp int)
|
|
//sysnb Getpid() (pid int)
|
|
//sysnb Getppid() (ppid int)
|
|
//sys Getpriority(which int, who int) (prio int, err error)
|
|
//sysnb Getrlimit(which int, lim *Rlimit) (err error)
|
|
//sysnb Getrusage(who int, rusage *Rusage) (err error)
|
|
//sysnb Getsid(pid int) (sid int, err error)
|
|
//sysnb Gettimeofday(tp *Timeval) (err error)
|
|
//sysnb Getuid() (uid int)
|
|
//sysnb Issetugid() (tainted bool)
|
|
//sys Kqueue() (fd int, err error)
|
|
//sys Lchown(path string, uid int, gid int) (err error)
|
|
//sys Link(path string, link string) (err error)
|
|
//sys Linkat(pathfd int, path string, linkfd int, link string, flags int) (err error)
|
|
//sys Listen(s int, backlog int) (err error)
|
|
//sys Mkdir(path string, mode uint32) (err error)
|
|
//sys Mkdirat(dirfd int, path string, mode uint32) (err error)
|
|
//sys Mkfifo(path string, mode uint32) (err error)
|
|
//sys Mknod(path string, mode uint32, dev int) (err error)
|
|
//sys Mount(fsType string, dir string, flags int, data unsafe.Pointer) (err error)
|
|
//sys Open(path string, mode int, perm uint32) (fd int, err error)
|
|
//sys Openat(dirfd int, path string, mode int, perm uint32) (fd int, err error)
|
|
//sys Pathconf(path string, name int) (val int, err error)
|
|
//sys pread(fd int, p []byte, offset int64) (n int, err error)
|
|
//sys pwrite(fd int, p []byte, offset int64) (n int, err error)
|
|
//sys read(fd int, p []byte) (n int, err error)
|
|
//sys Readlink(path string, buf []byte) (n int, err error)
|
|
//sys Readlinkat(dirfd int, path string, buf []byte) (n int, err error)
|
|
//sys Rename(from string, to string) (err error)
|
|
//sys Renameat(fromfd int, from string, tofd int, to string) (err error)
|
|
//sys Revoke(path string) (err error)
|
|
//sys Rmdir(path string) (err error)
|
|
//sys Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_LSEEK
|
|
//sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error)
|
|
//sys Setattrlist(path string, attrlist *Attrlist, attrBuf []byte, options int) (err error)
|
|
//sys Setegid(egid int) (err error)
|
|
//sysnb Seteuid(euid int) (err error)
|
|
//sysnb Setgid(gid int) (err error)
|
|
//sys Setlogin(name string) (err error)
|
|
//sysnb Setpgid(pid int, pgid int) (err error)
|
|
//sys Setpriority(which int, who int, prio int) (err error)
|
|
//sys Setprivexec(flag int) (err error)
|
|
//sysnb Setregid(rgid int, egid int) (err error)
|
|
//sysnb Setreuid(ruid int, euid int) (err error)
|
|
//sysnb Setsid() (pid int, err error)
|
|
//sysnb Settimeofday(tp *Timeval) (err error)
|
|
//sysnb Setuid(uid int) (err error)
|
|
//sys Symlink(path string, link string) (err error)
|
|
//sys Symlinkat(oldpath string, newdirfd int, newpath string) (err error)
|
|
//sys Sync() (err error)
|
|
//sys Truncate(path string, length int64) (err error)
|
|
//sys Umask(newmask int) (oldmask int)
|
|
//sys Undelete(path string) (err error)
|
|
//sys Unlink(path string) (err error)
|
|
//sys Unlinkat(dirfd int, path string, flags int) (err error)
|
|
//sys Unmount(path string, flags int) (err error)
|
|
//sys write(fd int, p []byte) (n int, err error)
|
|
//sys mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error)
|
|
//sys munmap(addr uintptr, length uintptr) (err error)
|