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Serge Bazanskicc25bdf2018-10-25 14:02:58 +02001// 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// NetBSD 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
20// SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets.
21type SockaddrDatalink struct {
22 Len uint8
23 Family uint8
24 Index uint16
25 Type uint8
26 Nlen uint8
27 Alen uint8
28 Slen uint8
29 Data [12]int8
30 raw RawSockaddrDatalink
31}
32
33func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno)
34
35func sysctlNodes(mib []_C_int) (nodes []Sysctlnode, err error) {
36 var olen uintptr
37
38 // Get a list of all sysctl nodes below the given MIB by performing
39 // a sysctl for the given MIB with CTL_QUERY appended.
40 mib = append(mib, CTL_QUERY)
41 qnode := Sysctlnode{Flags: SYSCTL_VERS_1}
42 qp := (*byte)(unsafe.Pointer(&qnode))
43 sz := unsafe.Sizeof(qnode)
44 if err = sysctl(mib, nil, &olen, qp, sz); err != nil {
45 return nil, err
46 }
47
48 // Now that we know the size, get the actual nodes.
49 nodes = make([]Sysctlnode, olen/sz)
50 np := (*byte)(unsafe.Pointer(&nodes[0]))
51 if err = sysctl(mib, np, &olen, qp, sz); err != nil {
52 return nil, err
53 }
54
55 return nodes, nil
56}
57
58func nametomib(name string) (mib []_C_int, err error) {
59 // Split name into components.
60 var parts []string
61 last := 0
62 for i := 0; i < len(name); i++ {
63 if name[i] == '.' {
64 parts = append(parts, name[last:i])
65 last = i + 1
66 }
67 }
68 parts = append(parts, name[last:])
69
70 // Discover the nodes and construct the MIB OID.
71 for partno, part := range parts {
72 nodes, err := sysctlNodes(mib)
73 if err != nil {
74 return nil, err
75 }
76 for _, node := range nodes {
77 n := make([]byte, 0)
78 for i := range node.Name {
79 if node.Name[i] != 0 {
80 n = append(n, byte(node.Name[i]))
81 }
82 }
83 if string(n) == part {
84 mib = append(mib, _C_int(node.Num))
85 break
86 }
87 }
88 if len(mib) != partno+1 {
89 return nil, EINVAL
90 }
91 }
92
93 return mib, nil
94}
95
96func SysctlClockinfo(name string) (*Clockinfo, error) {
97 mib, err := sysctlmib(name)
98 if err != nil {
99 return nil, err
100 }
101
102 n := uintptr(SizeofClockinfo)
103 var ci Clockinfo
104 if err := sysctl(mib, (*byte)(unsafe.Pointer(&ci)), &n, nil, 0); err != nil {
105 return nil, err
106 }
107 if n != SizeofClockinfo {
108 return nil, EIO
109 }
110 return &ci, nil
111}
112
113//sysnb pipe() (fd1 int, fd2 int, err error)
114func Pipe(p []int) (err error) {
115 if len(p) != 2 {
116 return EINVAL
117 }
118 p[0], p[1], err = pipe()
119 return
120}
121
122//sys getdents(fd int, buf []byte) (n int, err error)
123func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) {
124 return getdents(fd, buf)
125}
126
127const ImplementsGetwd = true
128
129//sys Getcwd(buf []byte) (n int, err error) = SYS___GETCWD
130
131func Getwd() (string, error) {
132 var buf [PathMax]byte
133 _, err := Getcwd(buf[0:])
134 if err != nil {
135 return "", err
136 }
137 n := clen(buf[:])
138 if n < 1 {
139 return "", EINVAL
140 }
141 return string(buf[:n]), nil
142}
143
144// TODO
145func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
146 return -1, ENOSYS
147}
148
149func setattrlistTimes(path string, times []Timespec, flags int) error {
150 // used on Darwin for UtimesNano
151 return ENOSYS
152}
153
154//sys ioctl(fd int, req uint, arg uintptr) (err error)
155
156// ioctl itself should not be exposed directly, but additional get/set
157// functions for specific types are permissible.
158
159// IoctlSetInt performs an ioctl operation which sets an integer value
160// on fd, using the specified request number.
161func IoctlSetInt(fd int, req uint, value int) error {
162 return ioctl(fd, req, uintptr(value))
163}
164
165func ioctlSetWinsize(fd int, req uint, value *Winsize) error {
166 return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
167}
168
169func ioctlSetTermios(fd int, req uint, value *Termios) error {
170 return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
171}
172
173// IoctlGetInt performs an ioctl operation which gets an integer value
174// from fd, using the specified request number.
175func IoctlGetInt(fd int, req uint) (int, error) {
176 var value int
177 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
178 return value, err
179}
180
181func IoctlGetWinsize(fd int, req uint) (*Winsize, error) {
182 var value Winsize
183 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
184 return &value, err
185}
186
187func IoctlGetTermios(fd int, req uint) (*Termios, error) {
188 var value Termios
189 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
190 return &value, err
191}
192
193func Uname(uname *Utsname) error {
194 mib := []_C_int{CTL_KERN, KERN_OSTYPE}
195 n := unsafe.Sizeof(uname.Sysname)
196 if err := sysctl(mib, &uname.Sysname[0], &n, nil, 0); err != nil {
197 return err
198 }
199
200 mib = []_C_int{CTL_KERN, KERN_HOSTNAME}
201 n = unsafe.Sizeof(uname.Nodename)
202 if err := sysctl(mib, &uname.Nodename[0], &n, nil, 0); err != nil {
203 return err
204 }
205
206 mib = []_C_int{CTL_KERN, KERN_OSRELEASE}
207 n = unsafe.Sizeof(uname.Release)
208 if err := sysctl(mib, &uname.Release[0], &n, nil, 0); err != nil {
209 return err
210 }
211
212 mib = []_C_int{CTL_KERN, KERN_VERSION}
213 n = unsafe.Sizeof(uname.Version)
214 if err := sysctl(mib, &uname.Version[0], &n, nil, 0); err != nil {
215 return err
216 }
217
218 // The version might have newlines or tabs in it, convert them to
219 // spaces.
220 for i, b := range uname.Version {
221 if b == '\n' || b == '\t' {
222 if i == len(uname.Version)-1 {
223 uname.Version[i] = 0
224 } else {
225 uname.Version[i] = ' '
226 }
227 }
228 }
229
230 mib = []_C_int{CTL_HW, HW_MACHINE}
231 n = unsafe.Sizeof(uname.Machine)
232 if err := sysctl(mib, &uname.Machine[0], &n, nil, 0); err != nil {
233 return err
234 }
235
236 return nil
237}
238
239/*
240 * Exposed directly
241 */
242//sys Access(path string, mode uint32) (err error)
243//sys Adjtime(delta *Timeval, olddelta *Timeval) (err error)
244//sys Chdir(path string) (err error)
245//sys Chflags(path string, flags int) (err error)
246//sys Chmod(path string, mode uint32) (err error)
247//sys Chown(path string, uid int, gid int) (err error)
248//sys Chroot(path string) (err error)
249//sys Close(fd int) (err error)
250//sys Dup(fd int) (nfd int, err error)
251//sys Dup2(from int, to int) (err error)
252//sys Exit(code int)
253//sys ExtattrGetFd(fd int, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error)
254//sys ExtattrSetFd(fd int, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error)
255//sys ExtattrDeleteFd(fd int, attrnamespace int, attrname string) (err error)
256//sys ExtattrListFd(fd int, attrnamespace int, data uintptr, nbytes int) (ret int, err error)
257//sys ExtattrGetFile(file string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error)
258//sys ExtattrSetFile(file string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error)
259//sys ExtattrDeleteFile(file string, attrnamespace int, attrname string) (err error)
260//sys ExtattrListFile(file string, attrnamespace int, data uintptr, nbytes int) (ret int, err error)
261//sys ExtattrGetLink(link string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error)
262//sys ExtattrSetLink(link string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error)
263//sys ExtattrDeleteLink(link string, attrnamespace int, attrname string) (err error)
264//sys ExtattrListLink(link string, attrnamespace int, data uintptr, nbytes int) (ret int, err error)
265//sys Faccessat(dirfd int, path string, mode uint32, flags int) (err error)
266//sys Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_POSIX_FADVISE
267//sys Fchdir(fd int) (err error)
268//sys Fchflags(fd int, flags int) (err error)
269//sys Fchmod(fd int, mode uint32) (err error)
270//sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error)
271//sys Fchown(fd int, uid int, gid int) (err error)
272//sys Flock(fd int, how int) (err error)
273//sys Fpathconf(fd int, name int) (val int, err error)
274//sys Fstat(fd int, stat *Stat_t) (err error)
275//sys Fstatat(fd int, path string, stat *Stat_t, flags int) (err error)
276//sys Fsync(fd int) (err error)
277//sys Ftruncate(fd int, length int64) (err error)
278//sysnb Getegid() (egid int)
279//sysnb Geteuid() (uid int)
280//sysnb Getgid() (gid int)
281//sysnb Getpgid(pid int) (pgid int, err error)
282//sysnb Getpgrp() (pgrp int)
283//sysnb Getpid() (pid int)
284//sysnb Getppid() (ppid int)
285//sys Getpriority(which int, who int) (prio int, err error)
286//sysnb Getrlimit(which int, lim *Rlimit) (err error)
287//sysnb Getrusage(who int, rusage *Rusage) (err error)
288//sysnb Getsid(pid int) (sid int, err error)
289//sysnb Gettimeofday(tv *Timeval) (err error)
290//sysnb Getuid() (uid int)
291//sys Issetugid() (tainted bool)
292//sys Kill(pid int, signum syscall.Signal) (err error)
293//sys Kqueue() (fd int, err error)
294//sys Lchown(path string, uid int, gid int) (err error)
295//sys Link(path string, link string) (err error)
296//sys Listen(s int, backlog int) (err error)
297//sys Lstat(path string, stat *Stat_t) (err error)
298//sys Mkdir(path string, mode uint32) (err error)
299//sys Mkfifo(path string, mode uint32) (err error)
300//sys Mknod(path string, mode uint32, dev int) (err error)
301//sys Nanosleep(time *Timespec, leftover *Timespec) (err error)
302//sys Open(path string, mode int, perm uint32) (fd int, err error)
303//sys Pathconf(path string, name int) (val int, err error)
304//sys Pread(fd int, p []byte, offset int64) (n int, err error)
305//sys Pwrite(fd int, p []byte, offset int64) (n int, err error)
306//sys read(fd int, p []byte) (n int, err error)
307//sys Readlink(path string, buf []byte) (n int, err error)
308//sys Rename(from string, to string) (err error)
309//sys Revoke(path string) (err error)
310//sys Rmdir(path string) (err error)
311//sys Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_LSEEK
312//sys Select(n int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (err error)
313//sysnb Setegid(egid int) (err error)
314//sysnb Seteuid(euid int) (err error)
315//sysnb Setgid(gid int) (err error)
316//sysnb Setpgid(pid int, pgid int) (err error)
317//sys Setpriority(which int, who int, prio int) (err error)
318//sysnb Setregid(rgid int, egid int) (err error)
319//sysnb Setreuid(ruid int, euid int) (err error)
320//sysnb Setrlimit(which int, lim *Rlimit) (err error)
321//sysnb Setsid() (pid int, err error)
322//sysnb Settimeofday(tp *Timeval) (err error)
323//sysnb Setuid(uid int) (err error)
324//sys Stat(path string, stat *Stat_t) (err error)
325//sys Symlink(path string, link string) (err error)
326//sys Sync() (err error)
327//sys Truncate(path string, length int64) (err error)
328//sys Umask(newmask int) (oldmask int)
329//sys Unlink(path string) (err error)
330//sys Unmount(path string, flags int) (err error)
331//sys write(fd int, p []byte) (n int, err error)
332//sys mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error)
333//sys munmap(addr uintptr, length uintptr) (err error)
334//sys readlen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_READ
335//sys writelen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_WRITE
336//sys utimensat(dirfd int, path string, times *[2]Timespec, flags int) (err error)
337
338/*
339 * Unimplemented
340 */
341// ____semctl13
342// __clone
343// __fhopen40
344// __fhstat40
345// __fhstatvfs140
346// __fstat30
347// __getcwd
348// __getfh30
349// __getlogin
350// __lstat30
351// __mount50
352// __msgctl13
353// __msync13
354// __ntp_gettime30
355// __posix_chown
356// __posix_fchown
357// __posix_lchown
358// __posix_rename
359// __setlogin
360// __shmctl13
361// __sigaction_sigtramp
362// __sigaltstack14
363// __sigpending14
364// __sigprocmask14
365// __sigsuspend14
366// __sigtimedwait
367// __stat30
368// __syscall
369// __vfork14
370// _ksem_close
371// _ksem_destroy
372// _ksem_getvalue
373// _ksem_init
374// _ksem_open
375// _ksem_post
376// _ksem_trywait
377// _ksem_unlink
378// _ksem_wait
379// _lwp_continue
380// _lwp_create
381// _lwp_ctl
382// _lwp_detach
383// _lwp_exit
384// _lwp_getname
385// _lwp_getprivate
386// _lwp_kill
387// _lwp_park
388// _lwp_self
389// _lwp_setname
390// _lwp_setprivate
391// _lwp_suspend
392// _lwp_unpark
393// _lwp_unpark_all
394// _lwp_wait
395// _lwp_wakeup
396// _pset_bind
397// _sched_getaffinity
398// _sched_getparam
399// _sched_setaffinity
400// _sched_setparam
401// acct
402// aio_cancel
403// aio_error
404// aio_fsync
405// aio_read
406// aio_return
407// aio_suspend
408// aio_write
409// break
410// clock_getres
411// clock_gettime
412// clock_settime
413// compat_09_ogetdomainname
414// compat_09_osetdomainname
415// compat_09_ouname
416// compat_10_omsgsys
417// compat_10_osemsys
418// compat_10_oshmsys
419// compat_12_fstat12
420// compat_12_getdirentries
421// compat_12_lstat12
422// compat_12_msync
423// compat_12_oreboot
424// compat_12_oswapon
425// compat_12_stat12
426// compat_13_sigaction13
427// compat_13_sigaltstack13
428// compat_13_sigpending13
429// compat_13_sigprocmask13
430// compat_13_sigreturn13
431// compat_13_sigsuspend13
432// compat_14___semctl
433// compat_14_msgctl
434// compat_14_shmctl
435// compat_16___sigaction14
436// compat_16___sigreturn14
437// compat_20_fhstatfs
438// compat_20_fstatfs
439// compat_20_getfsstat
440// compat_20_statfs
441// compat_30___fhstat30
442// compat_30___fstat13
443// compat_30___lstat13
444// compat_30___stat13
445// compat_30_fhopen
446// compat_30_fhstat
447// compat_30_fhstatvfs1
448// compat_30_getdents
449// compat_30_getfh
450// compat_30_ntp_gettime
451// compat_30_socket
452// compat_40_mount
453// compat_43_fstat43
454// compat_43_lstat43
455// compat_43_oaccept
456// compat_43_ocreat
457// compat_43_oftruncate
458// compat_43_ogetdirentries
459// compat_43_ogetdtablesize
460// compat_43_ogethostid
461// compat_43_ogethostname
462// compat_43_ogetkerninfo
463// compat_43_ogetpagesize
464// compat_43_ogetpeername
465// compat_43_ogetrlimit
466// compat_43_ogetsockname
467// compat_43_okillpg
468// compat_43_olseek
469// compat_43_ommap
470// compat_43_oquota
471// compat_43_orecv
472// compat_43_orecvfrom
473// compat_43_orecvmsg
474// compat_43_osend
475// compat_43_osendmsg
476// compat_43_osethostid
477// compat_43_osethostname
478// compat_43_osetrlimit
479// compat_43_osigblock
480// compat_43_osigsetmask
481// compat_43_osigstack
482// compat_43_osigvec
483// compat_43_otruncate
484// compat_43_owait
485// compat_43_stat43
486// execve
487// extattr_delete_fd
488// extattr_delete_file
489// extattr_delete_link
490// extattr_get_fd
491// extattr_get_file
492// extattr_get_link
493// extattr_list_fd
494// extattr_list_file
495// extattr_list_link
496// extattr_set_fd
497// extattr_set_file
498// extattr_set_link
499// extattrctl
500// fchroot
501// fdatasync
502// fgetxattr
503// fktrace
504// flistxattr
505// fork
506// fremovexattr
507// fsetxattr
508// fstatvfs1
509// fsync_range
510// getcontext
511// getitimer
512// getvfsstat
513// getxattr
514// ktrace
515// lchflags
516// lchmod
517// lfs_bmapv
518// lfs_markv
519// lfs_segclean
520// lfs_segwait
521// lgetxattr
522// lio_listio
523// listxattr
524// llistxattr
525// lremovexattr
526// lseek
527// lsetxattr
528// lutimes
529// madvise
530// mincore
531// minherit
532// modctl
533// mq_close
534// mq_getattr
535// mq_notify
536// mq_open
537// mq_receive
538// mq_send
539// mq_setattr
540// mq_timedreceive
541// mq_timedsend
542// mq_unlink
543// mremap
544// msgget
545// msgrcv
546// msgsnd
547// nfssvc
548// ntp_adjtime
549// pmc_control
550// pmc_get_info
551// pollts
552// preadv
553// profil
554// pselect
555// pset_assign
556// pset_create
557// pset_destroy
558// ptrace
559// pwritev
560// quotactl
561// rasctl
562// readv
563// reboot
564// removexattr
565// sa_enable
566// sa_preempt
567// sa_register
568// sa_setconcurrency
569// sa_stacks
570// sa_yield
571// sbrk
572// sched_yield
573// semconfig
574// semget
575// semop
576// setcontext
577// setitimer
578// setxattr
579// shmat
580// shmdt
581// shmget
582// sstk
583// statvfs1
584// swapctl
585// sysarch
586// syscall
587// timer_create
588// timer_delete
589// timer_getoverrun
590// timer_gettime
591// timer_settime
592// undelete
593// utrace
594// uuidgen
595// vadvise
596// vfork
597// writev