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
369