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	"syscall"
17	"unsafe"
18)
19
20type SockaddrDatalink struct {
21	Len    uint8
22	Family uint8
23	Index  uint16
24	Type   uint8
25	Nlen   uint8
26	Alen   uint8
27	Slen   uint8
28	Data   [24]int8
29	raw    RawSockaddrDatalink
30}
31
32func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno)
33
34func nametomib(name string) (mib []_C_int, err error) {
35
36	// Perform lookup via a binary search
37	left := 0
38	right := len(sysctlMib) - 1
39	for {
40		idx := left + (right-left)/2
41		switch {
42		case name == sysctlMib[idx].ctlname:
43			return sysctlMib[idx].ctloid, nil
44		case name > sysctlMib[idx].ctlname:
45			left = idx + 1
46		default:
47			right = idx - 1
48		}
49		if left > right {
50			break
51		}
52	}
53	return nil, EINVAL
54}
55
56// ParseDirent parses up to max directory entries in buf,
57// appending the names to names. It returns the number
58// bytes consumed from buf, the number of entries added
59// to names, and the new names slice.
60func ParseDirent(buf []byte, max int, names []string) (consumed int, count int, newnames []string) {
61	origlen := len(buf)
62	for max != 0 && len(buf) > 0 {
63		dirent := (*Dirent)(unsafe.Pointer(&buf[0]))
64		if dirent.Reclen == 0 {
65			buf = nil
66			break
67		}
68		buf = buf[dirent.Reclen:]
69		if dirent.Fileno == 0 { // File absent in directory.
70			continue
71		}
72		bytes := (*[10000]byte)(unsafe.Pointer(&dirent.Name[0]))
73		var name = string(bytes[0:dirent.Namlen])
74		if name == "." || name == ".." { // Useless names
75			continue
76		}
77		max--
78		count++
79		names = append(names, name)
80	}
81	return origlen - len(buf), count, names
82}
83
84//sysnb pipe(p *[2]_C_int) (err error)
85func Pipe(p []int) (err error) {
86	if len(p) != 2 {
87		return EINVAL
88	}
89	var pp [2]_C_int
90	err = pipe(&pp)
91	p[0] = int(pp[0])
92	p[1] = int(pp[1])
93	return
94}
95
96//sys getdents(fd int, buf []byte) (n int, err error)
97func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) {
98	return getdents(fd, buf)
99}
100
101// TODO
102func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
103	return -1, ENOSYS
104}
105
106func Getfsstat(buf []Statfs_t, flags int) (n int, err error) {
107	var _p0 unsafe.Pointer
108	var bufsize uintptr
109	if len(buf) > 0 {
110		_p0 = unsafe.Pointer(&buf[0])
111		bufsize = unsafe.Sizeof(Statfs_t{}) * uintptr(len(buf))
112	}
113	r0, _, e1 := Syscall(SYS_GETFSSTAT, uintptr(_p0), bufsize, uintptr(flags))
114	use(unsafe.Pointer(_p0))
115	n = int(r0)
116	if e1 != 0 {
117		err = e1
118	}
119	return
120}
121
122/*
123 * Exposed directly
124 */
125//sys	Access(path string, mode uint32) (err error)
126//sys	Adjtime(delta *Timeval, olddelta *Timeval) (err error)
127//sys	Chdir(path string) (err error)
128//sys	Chflags(path string, flags int) (err error)
129//sys	Chmod(path string, mode uint32) (err error)
130//sys	Chown(path string, uid int, gid int) (err error)
131//sys	Chroot(path string) (err error)
132//sys	Close(fd int) (err error)
133//sys	Dup(fd int) (nfd int, err error)
134//sys	Dup2(from int, to int) (err error)
135//sys	Exit(code int)
136//sys	Fchdir(fd int) (err error)
137//sys	Fchflags(fd int, flags int) (err error)
138//sys	Fchmod(fd int, mode uint32) (err error)
139//sys	Fchown(fd int, uid int, gid int) (err error)
140//sys	Flock(fd int, how int) (err error)
141//sys	Fpathconf(fd int, name int) (val int, err error)
142//sys	Fstat(fd int, stat *Stat_t) (err error)
143//sys	Fstatfs(fd int, stat *Statfs_t) (err error)
144//sys	Fsync(fd int) (err error)
145//sys	Ftruncate(fd int, length int64) (err error)
146//sysnb	Getegid() (egid int)
147//sysnb	Geteuid() (uid int)
148//sysnb	Getgid() (gid int)
149//sysnb	Getpgid(pid int) (pgid int, err error)
150//sysnb	Getpgrp() (pgrp int)
151//sysnb	Getpid() (pid int)
152//sysnb	Getppid() (ppid int)
153//sys	Getpriority(which int, who int) (prio int, err error)
154//sysnb	Getrlimit(which int, lim *Rlimit) (err error)
155//sysnb	Getrusage(who int, rusage *Rusage) (err error)
156//sysnb	Getsid(pid int) (sid int, err error)
157//sysnb	Gettimeofday(tv *Timeval) (err error)
158//sysnb	Getuid() (uid int)
159//sys	Issetugid() (tainted bool)
160//sys	Kill(pid int, signum syscall.Signal) (err error)
161//sys	Kqueue() (fd int, err error)
162//sys	Lchown(path string, uid int, gid int) (err error)
163//sys	Link(path string, link string) (err error)
164//sys	Listen(s int, backlog int) (err error)
165//sys	Lstat(path string, stat *Stat_t) (err error)
166//sys	Mkdir(path string, mode uint32) (err error)
167//sys	Mkfifo(path string, mode uint32) (err error)
168//sys	Mknod(path string, mode uint32, dev int) (err error)
169//sys	Mlock(b []byte) (err error)
170//sys	Mlockall(flags int) (err error)
171//sys	Mprotect(b []byte, prot int) (err error)
172//sys	Munlock(b []byte) (err error)
173//sys	Munlockall() (err error)
174//sys	Nanosleep(time *Timespec, leftover *Timespec) (err error)
175//sys	Open(path string, mode int, perm uint32) (fd int, err error)
176//sys	Pathconf(path string, name int) (val int, err error)
177//sys	Pread(fd int, p []byte, offset int64) (n int, err error)
178//sys	Pwrite(fd int, p []byte, offset int64) (n int, err error)
179//sys	read(fd int, p []byte) (n int, err error)
180//sys	Readlink(path string, buf []byte) (n int, err error)
181//sys	Rename(from string, to string) (err error)
182//sys	Revoke(path string) (err error)
183//sys	Rmdir(path string) (err error)
184//sys	Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_LSEEK
185//sys	Select(n int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (err error)
186//sysnb	Setegid(egid int) (err error)
187//sysnb	Seteuid(euid int) (err error)
188//sysnb	Setgid(gid int) (err error)
189//sys	Setlogin(name string) (err error)
190//sysnb	Setpgid(pid int, pgid int) (err error)
191//sys	Setpriority(which int, who int, prio int) (err error)
192//sysnb	Setregid(rgid int, egid int) (err error)
193//sysnb	Setreuid(ruid int, euid int) (err error)
194//sysnb	Setresgid(rgid int, egid int, sgid int) (err error)
195//sysnb	Setresuid(ruid int, euid int, suid int) (err error)
196//sysnb	Setrlimit(which int, lim *Rlimit) (err error)
197//sysnb	Setsid() (pid int, err error)
198//sysnb	Settimeofday(tp *Timeval) (err error)
199//sysnb	Setuid(uid int) (err error)
200//sys	Stat(path string, stat *Stat_t) (err error)
201//sys	Statfs(path string, stat *Statfs_t) (err error)
202//sys	Symlink(path string, link string) (err error)
203//sys	Sync() (err error)
204//sys	Truncate(path string, length int64) (err error)
205//sys	Umask(newmask int) (oldmask int)
206//sys	Unlink(path string) (err error)
207//sys	Unmount(path string, flags int) (err error)
208//sys	write(fd int, p []byte) (n int, err error)
209//sys	mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error)
210//sys	munmap(addr uintptr, length uintptr) (err error)
211//sys	readlen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_READ
212//sys	writelen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_WRITE
213
214/*
215 * Unimplemented
216 */
217// __getcwd
218// __semctl
219// __syscall
220// __sysctl
221// adjfreq
222// break
223// clock_getres
224// clock_gettime
225// clock_settime
226// closefrom
227// execve
228// faccessat
229// fchmodat
230// fchownat
231// fcntl
232// fhopen
233// fhstat
234// fhstatfs
235// fork
236// fstatat
237// futimens
238// getfh
239// getgid
240// getitimer
241// getlogin
242// getresgid
243// getresuid
244// getrtable
245// getthrid
246// ioctl
247// ktrace
248// lfs_bmapv
249// lfs_markv
250// lfs_segclean
251// lfs_segwait
252// linkat
253// mincore
254// minherit
255// mkdirat
256// mkfifoat
257// mknodat
258// mount
259// mquery
260// msgctl
261// msgget
262// msgrcv
263// msgsnd
264// nfssvc
265// nnpfspioctl
266// openat
267// poll
268// preadv
269// profil
270// pwritev
271// quotactl
272// readlinkat
273// readv
274// reboot
275// renameat
276// rfork
277// sched_yield
278// semget
279// semop
280// setgroups
281// setitimer
282// setrtable
283// setsockopt
284// shmat
285// shmctl
286// shmdt
287// shmget
288// sigaction
289// sigaltstack
290// sigpending
291// sigprocmask
292// sigreturn
293// sigsuspend
294// symlinkat
295// sysarch
296// syscall
297// threxit
298// thrsigdivert
299// thrsleep
300// thrwakeup
301// unlinkat
302// utimensat
303// vfork
304// writev
305