1// Copyright 2009,2010 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5// OpenBSD system calls.
6// This file is compiled as ordinary Go code,
7// but it is also input to mksyscall,
8// which parses the //sys lines and generates system call stubs.
9// Note that sometimes we use a lowercase //sys name and wrap
10// it in our own nicer implementation, either here or in
11// syscall_bsd.go or syscall_unix.go.
12
13package unix
14
15import (
16 "sort"
17 "syscall"
18 "unsafe"
19)
20
21// SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets.
22type SockaddrDatalink struct {
23 Len uint8
24 Family uint8
25 Index uint16
26 Type uint8
27 Nlen uint8
28 Alen uint8
29 Slen uint8
30 Data [24]int8
31 raw RawSockaddrDatalink
32}
33
34func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno)
35
36func nametomib(name string) (mib []_C_int, err error) {
37 i := sort.Search(len(sysctlMib), func(i int) bool {
38 return sysctlMib[i].ctlname >= name
39 })
40 if i < len(sysctlMib) && sysctlMib[i].ctlname == name {
41 return sysctlMib[i].ctloid, nil
42 }
43 return nil, EINVAL
44}
45
46//sysnb pipe(p *[2]_C_int) (err error)
47func Pipe(p []int) (err error) {
48 if len(p) != 2 {
49 return EINVAL
50 }
51 var pp [2]_C_int
52 err = pipe(&pp)
53 p[0] = int(pp[0])
54 p[1] = int(pp[1])
55 return
56}
57
58//sys getdents(fd int, buf []byte) (n int, err error)
59func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) {
60 return getdents(fd, buf)
61}
62
63const ImplementsGetwd = true
64
65//sys Getcwd(buf []byte) (n int, err error) = SYS___GETCWD
66
67func Getwd() (string, error) {
68 var buf [PathMax]byte
69 _, err := Getcwd(buf[0:])
70 if err != nil {
71 return "", err
72 }
73 n := clen(buf[:])
74 if n < 1 {
75 return "", EINVAL
76 }
77 return string(buf[:n]), nil
78}
79
80// TODO
81func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
82 return -1, ENOSYS
83}
84
85func Getfsstat(buf []Statfs_t, flags int) (n int, err error) {
86 var _p0 unsafe.Pointer
87 var bufsize uintptr
88 if len(buf) > 0 {
89 _p0 = unsafe.Pointer(&buf[0])
90 bufsize = unsafe.Sizeof(Statfs_t{}) * uintptr(len(buf))
91 }
92 r0, _, e1 := Syscall(SYS_GETFSSTAT, uintptr(_p0), bufsize, uintptr(flags))
93 n = int(r0)
94 if e1 != 0 {
95 err = e1
96 }
97 return
98}
99
100func setattrlistTimes(path string, times []Timespec, flags int) error {
101 // used on Darwin for UtimesNano
102 return ENOSYS
103}
104
105//sys ioctl(fd int, req uint, arg uintptr) (err error)
106
107// ioctl itself should not be exposed directly, but additional get/set
108// functions for specific types are permissible.
109
110// IoctlSetInt performs an ioctl operation which sets an integer value
111// on fd, using the specified request number.
112func IoctlSetInt(fd int, req uint, value int) error {
113 return ioctl(fd, req, uintptr(value))
114}
115
116func IoctlSetWinsize(fd int, req uint, value *Winsize) error {
117 return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
118}
119
120func IoctlSetTermios(fd int, req uint, value *Termios) error {
121 return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
122}
123
124// IoctlGetInt performs an ioctl operation which gets an integer value
125// from fd, using the specified request number.
126func IoctlGetInt(fd int, req uint) (int, error) {
127 var value int
128 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
129 return value, err
130}
131
132func IoctlGetWinsize(fd int, req uint) (*Winsize, error) {
133 var value Winsize
134 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
135 return &value, err
136}
137
138func IoctlGetTermios(fd int, req uint) (*Termios, error) {
139 var value Termios
140 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
141 return &value, err
142}
143
144func Uname(uname *Utsname) error {
145 mib := []_C_int{CTL_KERN, KERN_OSTYPE}
146 n := unsafe.Sizeof(uname.Sysname)
147 if err := sysctl(mib, &uname.Sysname[0], &n, nil, 0); err != nil {
148 return err
149 }
150
151 mib = []_C_int{CTL_KERN, KERN_HOSTNAME}
152 n = unsafe.Sizeof(uname.Nodename)
153 if err := sysctl(mib, &uname.Nodename[0], &n, nil, 0); err != nil {
154 return err
155 }
156
157 mib = []_C_int{CTL_KERN, KERN_OSRELEASE}
158 n = unsafe.Sizeof(uname.Release)
159 if err := sysctl(mib, &uname.Release[0], &n, nil, 0); err != nil {
160 return err
161 }
162
163 mib = []_C_int{CTL_KERN, KERN_VERSION}
164 n = unsafe.Sizeof(uname.Version)
165 if err := sysctl(mib, &uname.Version[0], &n, nil, 0); err != nil {
166 return err
167 }
168
169 // The version might have newlines or tabs in it, convert them to
170 // spaces.
171 for i, b := range uname.Version {
172 if b == '\n' || b == '\t' {
173 if i == len(uname.Version)-1 {
174 uname.Version[i] = 0
175 } else {
176 uname.Version[i] = ' '
177 }
178 }
179 }
180
181 mib = []_C_int{CTL_HW, HW_MACHINE}
182 n = unsafe.Sizeof(uname.Machine)
183 if err := sysctl(mib, &uname.Machine[0], &n, nil, 0); err != nil {
184 return err
185 }
186
187 return nil
188}
189
190/*
191 * Exposed directly
192 */
193//sys Access(path string, mode uint32) (err error)
194//sys Adjtime(delta *Timeval, olddelta *Timeval) (err error)
195//sys Chdir(path string) (err error)
196//sys Chflags(path string, flags int) (err error)
197//sys Chmod(path string, mode uint32) (err error)
198//sys Chown(path string, uid int, gid int) (err error)
199//sys Chroot(path string) (err error)
200//sys Close(fd int) (err error)
201//sys Dup(fd int) (nfd int, err error)
202//sys Dup2(from int, to int) (err error)
203//sys Exit(code int)
204//sys Faccessat(dirfd int, path string, mode uint32, flags int) (err error)
205//sys Fchdir(fd int) (err error)
206//sys Fchflags(fd int, flags int) (err error)
207//sys Fchmod(fd int, mode uint32) (err error)
208//sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error)
209//sys Fchown(fd int, uid int, gid int) (err error)
210//sys Flock(fd int, how int) (err error)
211//sys Fpathconf(fd int, name int) (val int, err error)
212//sys Fstat(fd int, stat *Stat_t) (err error)
213//sys Fstatat(fd int, path string, stat *Stat_t, flags int) (err error)
214//sys Fstatfs(fd int, stat *Statfs_t) (err error)
215//sys Fsync(fd int) (err error)
216//sys Ftruncate(fd int, length int64) (err error)
217//sysnb Getegid() (egid int)
218//sysnb Geteuid() (uid int)
219//sysnb Getgid() (gid int)
220//sysnb Getpgid(pid int) (pgid int, err error)
221//sysnb Getpgrp() (pgrp int)
222//sysnb Getpid() (pid int)
223//sysnb Getppid() (ppid int)
224//sys Getpriority(which int, who int) (prio int, err error)
225//sysnb Getrlimit(which int, lim *Rlimit) (err error)
226//sysnb Getrtable() (rtable int, err error)
227//sysnb Getrusage(who int, rusage *Rusage) (err error)
228//sysnb Getsid(pid int) (sid int, err error)
229//sysnb Gettimeofday(tv *Timeval) (err error)
230//sysnb Getuid() (uid int)
231//sys Issetugid() (tainted bool)
232//sys Kill(pid int, signum syscall.Signal) (err error)
233//sys Kqueue() (fd int, err error)
234//sys Lchown(path string, uid int, gid int) (err error)
235//sys Link(path string, link string) (err error)
236//sys Listen(s int, backlog int) (err error)
237//sys Lstat(path string, stat *Stat_t) (err error)
238//sys Mkdir(path string, mode uint32) (err error)
239//sys Mkfifo(path string, mode uint32) (err error)
240//sys Mknod(path string, mode uint32, dev int) (err error)
241//sys Nanosleep(time *Timespec, leftover *Timespec) (err error)
242//sys Open(path string, mode int, perm uint32) (fd int, err error)
243//sys Pathconf(path string, name int) (val int, err error)
244//sys Pread(fd int, p []byte, offset int64) (n int, err error)
245//sys Pwrite(fd int, p []byte, offset int64) (n int, err error)
246//sys read(fd int, p []byte) (n int, err error)
247//sys Readlink(path string, buf []byte) (n int, err error)
248//sys Rename(from string, to string) (err error)
249//sys Revoke(path string) (err error)
250//sys Rmdir(path string) (err error)
251//sys Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_LSEEK
252//sys Select(n int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (err error)
253//sysnb Setegid(egid int) (err error)
254//sysnb Seteuid(euid int) (err error)
255//sysnb Setgid(gid int) (err error)
256//sys Setlogin(name string) (err error)
257//sysnb Setpgid(pid int, pgid int) (err error)
258//sys Setpriority(which int, who int, prio int) (err error)
259//sysnb Setregid(rgid int, egid int) (err error)
260//sysnb Setreuid(ruid int, euid int) (err error)
261//sysnb Setresgid(rgid int, egid int, sgid int) (err error)
262//sysnb Setresuid(ruid int, euid int, suid int) (err error)
263//sysnb Setrlimit(which int, lim *Rlimit) (err error)
264//sysnb Setrtable(rtable int) (err error)
265//sysnb Setsid() (pid int, err error)
266//sysnb Settimeofday(tp *Timeval) (err error)
267//sysnb Setuid(uid int) (err error)
268//sys Stat(path string, stat *Stat_t) (err error)
269//sys Statfs(path string, stat *Statfs_t) (err error)
270//sys Symlink(path string, link string) (err error)
271//sys Sync() (err error)
272//sys Truncate(path string, length int64) (err error)
273//sys Umask(newmask int) (oldmask int)
274//sys Unlink(path string) (err error)
275//sys Unmount(path string, flags int) (err error)
276//sys write(fd int, p []byte) (n int, err error)
277//sys mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error)
278//sys munmap(addr uintptr, length uintptr) (err error)
279//sys readlen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_READ
280//sys writelen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_WRITE
281//sys utimensat(dirfd int, path string, times *[2]Timespec, flags int) (err error)
282
283/*
284 * Unimplemented
285 */
286// __getcwd
287// __semctl
288// __syscall
289// __sysctl
290// adjfreq
291// break
292// clock_getres
293// clock_gettime
294// clock_settime
295// closefrom
296// execve
297// faccessat
298// fchmodat
299// fchownat
300// fcntl
301// fhopen
302// fhstat
303// fhstatfs
304// fork
305// fstatat
306// futimens
307// getfh
308// getgid
309// getitimer
310// getlogin
311// getresgid
312// getresuid
313// getthrid
314// ktrace
315// lfs_bmapv
316// lfs_markv
317// lfs_segclean
318// lfs_segwait
319// linkat
320// mincore
321// minherit
322// mkdirat
323// mkfifoat
324// mknodat
325// mount
326// mquery
327// msgctl
328// msgget
329// msgrcv
330// msgsnd
331// nfssvc
332// nnpfspioctl
333// openat
334// preadv
335// profil
336// pwritev
337// quotactl
338// readlinkat
339// readv
340// reboot
341// renameat
342// rfork
343// sched_yield
344// semget
345// semop
346// setgroups
347// setitimer
348// setsockopt
349// shmat
350// shmctl
351// shmdt
352// shmget
353// sigaction
354// sigaltstack
355// sigpending
356// sigprocmask
357// sigreturn
358// sigsuspend
359// symlinkat
360// sysarch
361// syscall
362// threxit
363// thrsigdivert
364// thrsleep
365// thrwakeup
366// unlinkat
367// vfork
368// writev