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342 lines
11 KiB
342 lines
11 KiB
// 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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// OpenBSD 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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"sort" |
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"syscall" |
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"unsafe" |
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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 [24]int8 |
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raw RawSockaddrDatalink |
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} |
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func anyToSockaddrGOOS(fd int, rsa *RawSockaddrAny) (Sockaddr, error) { |
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return nil, EAFNOSUPPORT |
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} |
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func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno) |
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func nametomib(name string) (mib []_C_int, err error) { |
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i := sort.Search(len(sysctlMib), func(i int) bool { |
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return sysctlMib[i].ctlname >= name |
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}) |
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if i < len(sysctlMib) && sysctlMib[i].ctlname == name { |
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return sysctlMib[i].ctloid, nil |
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} |
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return nil, EINVAL |
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} |
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func direntIno(buf []byte) (uint64, bool) { |
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return readInt(buf, unsafe.Offsetof(Dirent{}.Fileno), unsafe.Sizeof(Dirent{}.Fileno)) |
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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 SysctlUvmexp(name string) (*Uvmexp, error) { |
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mib, err := sysctlmib(name) |
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if err != nil { |
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return nil, err |
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} |
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n := uintptr(SizeofUvmexp) |
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var u Uvmexp |
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if err := sysctl(mib, (*byte)(unsafe.Pointer(&u)), &n, nil, 0); err != nil { |
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return nil, err |
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} |
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if n != SizeofUvmexp { |
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return nil, EIO |
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} |
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return &u, nil |
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} |
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func Pipe(p []int) (err error) { |
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return Pipe2(p, 0) |
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} |
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//sysnb pipe2(p *[2]_C_int, flags int) (err error) |
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func Pipe2(p []int, flags int) error { |
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if len(p) != 2 { |
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return EINVAL |
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} |
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var pp [2]_C_int |
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err := pipe2(&pp, flags) |
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if err == nil { |
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p[0] = int(pp[0]) |
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p[1] = int(pp[1]) |
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} |
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return err |
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} |
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//sys Getdents(fd int, buf []byte) (n int, err error) |
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func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) { |
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n, err = Getdents(fd, buf) |
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if err != nil || basep == nil { |
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return |
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} |
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var off int64 |
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off, err = Seek(fd, 0, 1 /* SEEK_CUR */) |
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if err != nil { |
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*basep = ^uintptr(0) |
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return |
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} |
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*basep = uintptr(off) |
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if unsafe.Sizeof(*basep) == 8 { |
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return |
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} |
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if off>>32 != 0 { |
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// We can't stuff the offset back into a uintptr, so any |
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// future calls would be suspect. Generate an error. |
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// EIO was allowed by getdirentries. |
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err = EIO |
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} |
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return |
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} |
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//sys Getcwd(buf []byte) (n int, err error) = SYS___GETCWD |
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func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { |
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if raceenabled { |
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raceReleaseMerge(unsafe.Pointer(&ioSync)) |
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} |
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return sendfile(outfd, infd, offset, count) |
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} |
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// TODO |
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func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { |
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return -1, ENOSYS |
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} |
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func Getfsstat(buf []Statfs_t, flags int) (n int, err error) { |
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var bufptr *Statfs_t |
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var bufsize uintptr |
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if len(buf) > 0 { |
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bufptr = &buf[0] |
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bufsize = unsafe.Sizeof(Statfs_t{}) * uintptr(len(buf)) |
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} |
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return getfsstat(bufptr, bufsize, flags) |
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} |
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//sysnb getresuid(ruid *_C_int, euid *_C_int, suid *_C_int) |
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//sysnb getresgid(rgid *_C_int, egid *_C_int, sgid *_C_int) |
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func Getresuid() (ruid, euid, suid int) { |
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var r, e, s _C_int |
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getresuid(&r, &e, &s) |
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return int(r), int(e), int(s) |
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} |
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func Getresgid() (rgid, egid, sgid int) { |
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var r, e, s _C_int |
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getresgid(&r, &e, &s) |
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return int(r), int(e), int(s) |
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} |
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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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//sys sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL |
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//sys fcntl(fd int, cmd int, arg int) (n int, err error) |
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//sys fcntlPtr(fd int, cmd int, arg unsafe.Pointer) (n int, err error) = SYS_FCNTL |
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// FcntlInt performs a fcntl syscall on fd with the provided command and argument. |
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func FcntlInt(fd uintptr, cmd, arg int) (int, error) { |
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return fcntl(int(fd), cmd, arg) |
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} |
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// FcntlFlock performs a fcntl syscall for the F_GETLK, F_SETLK or F_SETLKW command. |
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func FcntlFlock(fd uintptr, cmd int, lk *Flock_t) error { |
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_, err := fcntlPtr(int(fd), cmd, unsafe.Pointer(lk)) |
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return err |
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} |
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//sys ppoll(fds *PollFd, nfds int, timeout *Timespec, sigmask *Sigset_t) (n int, err error) |
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func Ppoll(fds []PollFd, timeout *Timespec, sigmask *Sigset_t) (n int, err error) { |
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if len(fds) == 0 { |
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return ppoll(nil, 0, timeout, sigmask) |
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} |
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return ppoll(&fds[0], len(fds), timeout, sigmask) |
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} |
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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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/* |
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* Exposed directly |
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*/ |
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//sys Access(path string, mode uint32) (err error) |
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//sys Adjtime(delta *Timeval, olddelta *Timeval) (err error) |
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//sys Chdir(path string) (err error) |
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//sys Chflags(path string, flags int) (err error) |
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//sys Chmod(path string, mode uint32) (err error) |
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//sys Chown(path string, uid int, gid int) (err error) |
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//sys Chroot(path string) (err error) |
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//sys ClockGettime(clockid int32, time *Timespec) (err error) |
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//sys Close(fd int) (err error) |
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//sys Dup(fd int) (nfd int, err error) |
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//sys Dup2(from int, to int) (err error) |
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//sys Dup3(from int, to int, flags int) (err error) |
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//sys Exit(code int) |
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//sys Faccessat(dirfd int, path string, mode uint32, flags int) (err error) |
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//sys Fchdir(fd int) (err error) |
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//sys Fchflags(fd int, flags int) (err error) |
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//sys Fchmod(fd int, mode uint32) (err error) |
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//sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) |
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//sys Fchown(fd int, uid int, gid int) (err error) |
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//sys Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error) |
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//sys Flock(fd int, how int) (err error) |
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//sys Fpathconf(fd int, name int) (val int, err error) |
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//sys Fstat(fd int, stat *Stat_t) (err error) |
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//sys Fstatat(fd int, path string, stat *Stat_t, flags int) (err error) |
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//sys Fstatfs(fd int, stat *Statfs_t) (err error) |
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//sys Fsync(fd int) (err error) |
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//sys Ftruncate(fd int, length int64) (err error) |
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//sysnb Getegid() (egid int) |
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//sysnb Geteuid() (uid int) |
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//sysnb Getgid() (gid int) |
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//sysnb Getpgid(pid int) (pgid int, err error) |
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//sysnb Getpgrp() (pgrp int) |
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//sysnb Getpid() (pid int) |
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//sysnb Getppid() (ppid int) |
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//sys Getpriority(which int, who int) (prio int, err error) |
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//sysnb Getrlimit(which int, lim *Rlimit) (err error) |
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//sysnb Getrtable() (rtable int, err error) |
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//sysnb Getrusage(who int, rusage *Rusage) (err error) |
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//sysnb Getsid(pid int) (sid int, err error) |
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//sysnb Gettimeofday(tv *Timeval) (err error) |
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//sysnb Getuid() (uid int) |
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//sys Issetugid() (tainted bool) |
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//sys Kill(pid int, signum syscall.Signal) (err error) |
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//sys Kqueue() (fd int, err error) |
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//sys Lchown(path string, uid int, gid int) (err error) |
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//sys Link(path string, link string) (err error) |
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//sys Linkat(pathfd int, path string, linkfd int, link string, flags int) (err error) |
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//sys Listen(s int, backlog int) (err error) |
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//sys Lstat(path string, stat *Stat_t) (err error) |
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//sys Mkdir(path string, mode uint32) (err error) |
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//sys Mkdirat(dirfd int, path string, mode uint32) (err error) |
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//sys Mkfifo(path string, mode uint32) (err error) |
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//sys Mkfifoat(dirfd int, path string, mode uint32) (err error) |
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//sys Mknod(path string, mode uint32, dev int) (err error) |
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//sys Mknodat(dirfd int, path string, mode uint32, dev int) (err error) |
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//sys Mount(fsType string, dir string, flags int, data unsafe.Pointer) (err error) |
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//sys Nanosleep(time *Timespec, leftover *Timespec) (err error) |
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//sys Open(path string, mode int, perm uint32) (fd int, err error) |
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//sys Openat(dirfd int, path string, mode int, perm uint32) (fd int, err error) |
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//sys Pathconf(path string, name int) (val int, err error) |
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//sys pread(fd int, p []byte, offset int64) (n int, err error) |
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//sys pwrite(fd int, p []byte, offset int64) (n int, err error) |
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//sys read(fd int, p []byte) (n int, err error) |
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//sys Readlink(path string, buf []byte) (n int, err error) |
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//sys Readlinkat(dirfd int, path string, buf []byte) (n int, err error) |
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//sys Rename(from string, to string) (err error) |
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//sys Renameat(fromfd int, from string, tofd int, to string) (err error) |
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//sys Revoke(path string) (err error) |
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//sys Rmdir(path string) (err error) |
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//sys Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_LSEEK |
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//sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) |
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//sysnb Setegid(egid int) (err error) |
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//sysnb Seteuid(euid int) (err error) |
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//sysnb Setgid(gid int) (err error) |
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//sys Setlogin(name string) (err error) |
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//sysnb Setpgid(pid int, pgid int) (err error) |
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//sys Setpriority(which int, who int, prio int) (err error) |
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//sysnb Setregid(rgid int, egid int) (err error) |
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//sysnb Setreuid(ruid int, euid int) (err error) |
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//sysnb Setresgid(rgid int, egid int, sgid int) (err error) |
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//sysnb Setresuid(ruid int, euid int, suid int) (err error) |
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//sysnb Setrtable(rtable int) (err error) |
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//sysnb Setsid() (pid int, err error) |
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//sysnb Settimeofday(tp *Timeval) (err error) |
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//sysnb Setuid(uid int) (err error) |
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//sys Stat(path string, stat *Stat_t) (err error) |
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//sys Statfs(path string, stat *Statfs_t) (err error) |
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//sys Symlink(path string, link string) (err error) |
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//sys Symlinkat(oldpath string, newdirfd int, newpath string) (err error) |
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//sys Sync() (err error) |
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//sys Truncate(path string, length int64) (err error) |
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//sys Umask(newmask int) (oldmask int) |
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//sys Unlink(path string) (err error) |
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//sys Unlinkat(dirfd int, path string, flags int) (err error) |
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//sys Unmount(path string, flags int) (err error) |
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//sys write(fd int, p []byte) (n int, err error) |
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//sys mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error) |
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//sys munmap(addr uintptr, length uintptr) (err error) |
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//sys getfsstat(stat *Statfs_t, bufsize uintptr, flags int) (n int, err error) |
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//sys utimensat(dirfd int, path string, times *[2]Timespec, flags int) (err error) |
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//sys pledge(promises *byte, execpromises *byte) (err error) |
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//sys unveil(path *byte, flags *byte) (err error)
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