1 // Copyright 2009 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.
5 // Solaris 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_solaris.go or syscall_unix.go.
21 // Implemented in runtime/syscall_solaris.go.
22 type syscallFunc uintptr
24 func rawSysvicall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.Errno)
25 func sysvicall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.Errno)
27 type SockaddrDatalink struct {
35 raw RawSockaddrDatalink
38 func clen(n []byte) int {
39 for i := 0; i < len(n); i++ {
47 // ParseDirent parses up to max directory entries in buf,
48 // appending the names to names. It returns the number
49 // bytes consumed from buf, the number of entries added
50 // to names, and the new names slice.
51 func ParseDirent(buf []byte, max int, names []string) (consumed int, count int, newnames []string) {
53 for max != 0 && len(buf) > 0 {
54 dirent := (*Dirent)(unsafe.Pointer(&buf[0]))
55 if dirent.Reclen == 0 {
59 buf = buf[dirent.Reclen:]
60 if dirent.Ino == 0 { // File absent in directory.
63 bytes := (*[10000]byte)(unsafe.Pointer(&dirent.Name[0]))
64 var name = string(bytes[0:clen(bytes[:])])
65 if name == "." || name == ".." { // Useless names
70 names = append(names, name)
72 return origlen - len(buf), count, names
75 //sysnb pipe(p *[2]_C_int) (n int, err error)
77 func Pipe(p []int) (err error) {
91 func (sa *SockaddrInet4) sockaddr() (unsafe.Pointer, _Socklen, error) {
92 if sa.Port < 0 || sa.Port > 0xFFFF {
95 sa.raw.Family = AF_INET
96 p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
97 p[0] = byte(sa.Port >> 8)
99 for i := 0; i < len(sa.Addr); i++ {
100 sa.raw.Addr[i] = sa.Addr[i]
102 return unsafe.Pointer(&sa.raw), SizeofSockaddrInet4, nil
105 func (sa *SockaddrInet6) sockaddr() (unsafe.Pointer, _Socklen, error) {
106 if sa.Port < 0 || sa.Port > 0xFFFF {
107 return nil, 0, EINVAL
109 sa.raw.Family = AF_INET6
110 p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
111 p[0] = byte(sa.Port >> 8)
113 sa.raw.Scope_id = sa.ZoneId
114 for i := 0; i < len(sa.Addr); i++ {
115 sa.raw.Addr[i] = sa.Addr[i]
117 return unsafe.Pointer(&sa.raw), SizeofSockaddrInet6, nil
120 func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, _Socklen, error) {
123 if n >= len(sa.raw.Path) {
124 return nil, 0, EINVAL
126 sa.raw.Family = AF_UNIX
127 for i := 0; i < n; i++ {
128 sa.raw.Path[i] = int8(name[i])
130 // length is family (uint16), name, NUL.
133 sl += _Socklen(n) + 1
135 if sa.raw.Path[0] == '@' {
137 // Don't count trailing NUL for abstract address.
141 return unsafe.Pointer(&sa.raw), sl, nil
144 //sys getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) = libsocket.getsockname
146 func Getsockname(fd int) (sa Sockaddr, err error) {
147 var rsa RawSockaddrAny
148 var len _Socklen = SizeofSockaddrAny
149 if err = getsockname(fd, &rsa, &len); err != nil {
152 return anyToSockaddr(&rsa)
155 const ImplementsGetwd = true
157 //sys Getcwd(buf []byte) (n int, err error)
159 func Getwd() (wd string, err error) {
160 var buf [PathMax]byte
161 // Getcwd will return an error if it failed for any reason.
162 _, err = Getcwd(buf[0:])
170 return string(buf[:n]), nil
177 //sysnb getgroups(ngid int, gid *_Gid_t) (n int, err error)
178 //sysnb setgroups(ngid int, gid *_Gid_t) (err error)
180 func Getgroups() (gids []int, err error) {
181 n, err := getgroups(0, nil)
182 // Check for error and sanity check group count. Newer versions of
183 // Solaris allow up to 1024 (NGROUPS_MAX).
184 if n < 0 || n > 1024 {
193 a := make([]_Gid_t, n)
194 n, err = getgroups(n, &a[0])
198 gids = make([]int, n)
199 for i, v := range a[0:n] {
205 func Setgroups(gids []int) (err error) {
207 return setgroups(0, nil)
210 a := make([]_Gid_t, len(gids))
211 for i, v := range gids {
214 return setgroups(len(a), &a[0])
217 func ReadDirent(fd int, buf []byte) (n int, err error) {
218 // Final argument is (basep *uintptr) and the syscall doesn't take nil.
219 // TODO(rsc): Can we use a single global basep for all calls?
220 return Getdents(fd, buf, new(uintptr))
223 // Wait status is 7 bits at bottom, either 0 (exited),
224 // 0x7F (stopped), or a signal number that caused an exit.
225 // The 0x80 bit is whether there was a core dump.
226 // An extra number (exit code, signal causing a stop)
227 // is in the high bits.
229 type WaitStatus uint32
240 func (w WaitStatus) Exited() bool { return w&mask == exited }
242 func (w WaitStatus) ExitStatus() int {
243 if w&mask != exited {
246 return int(w >> shift)
249 func (w WaitStatus) Signaled() bool { return w&mask != stopped && w&mask != 0 }
251 func (w WaitStatus) Signal() syscall.Signal {
252 sig := syscall.Signal(w & mask)
253 if sig == stopped || sig == 0 {
259 func (w WaitStatus) CoreDump() bool { return w.Signaled() && w&core != 0 }
261 func (w WaitStatus) Stopped() bool { return w&mask == stopped && syscall.Signal(w>>shift) != SIGSTOP }
263 func (w WaitStatus) Continued() bool { return w&mask == stopped && syscall.Signal(w>>shift) == SIGSTOP }
265 func (w WaitStatus) StopSignal() syscall.Signal {
269 return syscall.Signal(w>>shift) & 0xFF
272 func (w WaitStatus) TrapCause() int { return -1 }
274 //sys wait4(pid int32, statusp *_C_int, options int, rusage *Rusage) (wpid int32, err error)
276 func Wait4(pid int, wstatus *WaitStatus, options int, rusage *Rusage) (int, error) {
278 rpid, err := wait4(int32(pid), &status, options, rusage)
284 *wstatus = WaitStatus(status)
289 //sys gethostname(buf []byte) (n int, err error)
291 func Gethostname() (name string, err error) {
292 var buf [MaxHostNameLen]byte
293 n, err := gethostname(buf[:])
301 return string(buf[:n]), nil
304 //sys utimes(path string, times *[2]Timeval) (err error)
306 func Utimes(path string, tv []Timeval) (err error) {
308 return utimes(path, nil)
313 return utimes(path, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
316 //sys utimensat(fd int, path string, times *[2]Timespec, flag int) (err error)
318 func UtimesNano(path string, ts []Timespec) error {
320 return utimensat(AT_FDCWD, path, nil, 0)
325 return utimensat(AT_FDCWD, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0)
328 func UtimesNanoAt(dirfd int, path string, ts []Timespec, flags int) error {
330 return utimensat(dirfd, path, nil, flags)
335 return utimensat(dirfd, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), flags)
338 //sys fcntl(fd int, cmd int, arg int) (val int, err error)
340 // FcntlFlock performs a fcntl syscall for the F_GETLK, F_SETLK or F_SETLKW command.
341 func FcntlFlock(fd uintptr, cmd int, lk *Flock_t) error {
342 _, _, e1 := sysvicall6(uintptr(unsafe.Pointer(&procfcntl)), 3, uintptr(fd), uintptr(cmd), uintptr(unsafe.Pointer(lk)), 0, 0, 0)
349 //sys futimesat(fildes int, path *byte, times *[2]Timeval) (err error)
351 func Futimesat(dirfd int, path string, tv []Timeval) error {
352 pathp, err := BytePtrFromString(path)
357 return futimesat(dirfd, pathp, nil)
362 return futimesat(dirfd, pathp, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
365 // Solaris doesn't have an futimes function because it allows NULL to be
366 // specified as the path for futimesat. However, Go doesn't like
367 // NULL-style string interfaces, so this simple wrapper is provided.
368 func Futimes(fd int, tv []Timeval) error {
370 return futimesat(fd, nil, nil)
375 return futimesat(fd, nil, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
378 func anyToSockaddr(rsa *RawSockaddrAny) (Sockaddr, error) {
379 switch rsa.Addr.Family {
381 pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa))
382 sa := new(SockaddrUnix)
383 // Assume path ends at NUL.
384 // This is not technically the Solaris semantics for
385 // abstract Unix domain sockets -- they are supposed
386 // to be uninterpreted fixed-size binary blobs -- but
387 // everyone uses this convention.
389 for n < len(pp.Path) && pp.Path[n] != 0 {
392 bytes := (*[10000]byte)(unsafe.Pointer(&pp.Path[0]))[0:n]
393 sa.Name = string(bytes)
397 pp := (*RawSockaddrInet4)(unsafe.Pointer(rsa))
398 sa := new(SockaddrInet4)
399 p := (*[2]byte)(unsafe.Pointer(&pp.Port))
400 sa.Port = int(p[0])<<8 + int(p[1])
401 for i := 0; i < len(sa.Addr); i++ {
402 sa.Addr[i] = pp.Addr[i]
407 pp := (*RawSockaddrInet6)(unsafe.Pointer(rsa))
408 sa := new(SockaddrInet6)
409 p := (*[2]byte)(unsafe.Pointer(&pp.Port))
410 sa.Port = int(p[0])<<8 + int(p[1])
411 sa.ZoneId = pp.Scope_id
412 for i := 0; i < len(sa.Addr); i++ {
413 sa.Addr[i] = pp.Addr[i]
417 return nil, EAFNOSUPPORT
420 //sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error) = libsocket.accept
422 func Accept(fd int) (nfd int, sa Sockaddr, err error) {
423 var rsa RawSockaddrAny
424 var len _Socklen = SizeofSockaddrAny
425 nfd, err = accept(fd, &rsa, &len)
429 sa, err = anyToSockaddr(&rsa)
437 //sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error) = libsocket.recvmsg
439 func Recvmsg(fd int, p, oob []byte, flags int) (n, oobn int, recvflags int, from Sockaddr, err error) {
441 var rsa RawSockaddrAny
442 msg.Name = (*byte)(unsafe.Pointer(&rsa))
443 msg.Namelen = uint32(SizeofSockaddrAny)
446 iov.Base = (*int8)(unsafe.Pointer(&p[0]))
451 // receive at least one normal byte
456 msg.Accrights = (*int8)(unsafe.Pointer(&oob[0]))
460 if n, err = recvmsg(fd, &msg, flags); n == -1 {
463 oobn = int(msg.Accrightslen)
464 // source address is only specified if the socket is unconnected
465 if rsa.Addr.Family != AF_UNSPEC {
466 from, err = anyToSockaddr(&rsa)
471 func Sendmsg(fd int, p, oob []byte, to Sockaddr, flags int) (err error) {
472 _, err = SendmsgN(fd, p, oob, to, flags)
476 //sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error) = libsocket.sendmsg
478 func SendmsgN(fd int, p, oob []byte, to Sockaddr, flags int) (n int, err error) {
479 var ptr unsafe.Pointer
482 ptr, salen, err = to.sockaddr()
488 msg.Name = (*byte)(unsafe.Pointer(ptr))
489 msg.Namelen = uint32(salen)
492 iov.Base = (*int8)(unsafe.Pointer(&p[0]))
497 // send at least one normal byte
502 msg.Accrights = (*int8)(unsafe.Pointer(&oob[0]))
506 if n, err = sendmsg(fd, &msg, flags); err != nil {
509 if len(oob) > 0 && len(p) == 0 {
515 //sys acct(path *byte) (err error)
517 func Acct(path string) (err error) {
519 // Assume caller wants to disable accounting.
523 pathp, err := BytePtrFromString(path)
531 * Expose the ioctl function
534 //sys ioctl(fd int, req int, arg uintptr) (err error)
536 func IoctlSetInt(fd int, req int, value int) (err error) {
537 return ioctl(fd, req, uintptr(value))
540 func IoctlSetWinsize(fd int, req int, value *Winsize) (err error) {
541 return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
544 func IoctlSetTermios(fd int, req int, value *Termios) (err error) {
545 return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
548 func IoctlSetTermio(fd int, req int, value *Termio) (err error) {
549 return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
552 func IoctlGetInt(fd int, req int) (int, error) {
554 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
558 func IoctlGetWinsize(fd int, req int) (*Winsize, error) {
560 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
564 func IoctlGetTermios(fd int, req int) (*Termios, error) {
566 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
570 func IoctlGetTermio(fd int, req int) (*Termio, error) {
572 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
579 //sys Access(path string, mode uint32) (err error)
580 //sys Adjtime(delta *Timeval, olddelta *Timeval) (err error)
581 //sys Chdir(path string) (err error)
582 //sys Chmod(path string, mode uint32) (err error)
583 //sys Chown(path string, uid int, gid int) (err error)
584 //sys Chroot(path string) (err error)
585 //sys Close(fd int) (err error)
586 //sys Creat(path string, mode uint32) (fd int, err error)
587 //sys Dup(fd int) (nfd int, err error)
588 //sys Dup2(oldfd int, newfd int) (err error)
590 //sys Fchdir(fd int) (err error)
591 //sys Fchmod(fd int, mode uint32) (err error)
592 //sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error)
593 //sys Fchown(fd int, uid int, gid int) (err error)
594 //sys Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error)
595 //sys Fdatasync(fd int) (err error)
596 //sys Fpathconf(fd int, name int) (val int, err error)
597 //sys Fstat(fd int, stat *Stat_t) (err error)
598 //sys Getdents(fd int, buf []byte, basep *uintptr) (n int, err error)
599 //sysnb Getgid() (gid int)
600 //sysnb Getpid() (pid int)
601 //sysnb Getpgid(pid int) (pgid int, err error)
602 //sysnb Getpgrp() (pgid int, err error)
603 //sys Geteuid() (euid int)
604 //sys Getegid() (egid int)
605 //sys Getppid() (ppid int)
606 //sys Getpriority(which int, who int) (n int, err error)
607 //sysnb Getrlimit(which int, lim *Rlimit) (err error)
608 //sysnb Getrusage(who int, rusage *Rusage) (err error)
609 //sysnb Gettimeofday(tv *Timeval) (err error)
610 //sysnb Getuid() (uid int)
611 //sys Kill(pid int, signum syscall.Signal) (err error)
612 //sys Lchown(path string, uid int, gid int) (err error)
613 //sys Link(path string, link string) (err error)
614 //sys Listen(s int, backlog int) (err error) = libsocket.listen
615 //sys Lstat(path string, stat *Stat_t) (err error)
616 //sys Madvise(b []byte, advice int) (err error)
617 //sys Mkdir(path string, mode uint32) (err error)
618 //sys Mkdirat(dirfd int, path string, mode uint32) (err error)
619 //sys Mkfifo(path string, mode uint32) (err error)
620 //sys Mkfifoat(dirfd int, path string, mode uint32) (err error)
621 //sys Mknod(path string, mode uint32, dev int) (err error)
622 //sys Mknodat(dirfd int, path string, mode uint32, dev int) (err error)
623 //sys Mlock(b []byte) (err error)
624 //sys Mlockall(flags int) (err error)
625 //sys Mprotect(b []byte, prot int) (err error)
626 //sys Munlock(b []byte) (err error)
627 //sys Munlockall() (err error)
628 //sys Nanosleep(time *Timespec, leftover *Timespec) (err error)
629 //sys Open(path string, mode int, perm uint32) (fd int, err error)
630 //sys Openat(dirfd int, path string, flags int, mode uint32) (fd int, err error)
631 //sys Pathconf(path string, name int) (val int, err error)
632 //sys Pause() (err error)
633 //sys Pread(fd int, p []byte, offset int64) (n int, err error)
634 //sys Pwrite(fd int, p []byte, offset int64) (n int, err error)
635 //sys read(fd int, p []byte) (n int, err error)
636 //sys Readlink(path string, buf []byte) (n int, err error)
637 //sys Rename(from string, to string) (err error)
638 //sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error)
639 //sys Rmdir(path string) (err error)
640 //sys Seek(fd int, offset int64, whence int) (newoffset int64, err error) = lseek
641 //sysnb Setegid(egid int) (err error)
642 //sysnb Seteuid(euid int) (err error)
643 //sysnb Setgid(gid int) (err error)
644 //sys Sethostname(p []byte) (err error)
645 //sysnb Setpgid(pid int, pgid int) (err error)
646 //sys Setpriority(which int, who int, prio int) (err error)
647 //sysnb Setregid(rgid int, egid int) (err error)
648 //sysnb Setreuid(ruid int, euid int) (err error)
649 //sysnb Setrlimit(which int, lim *Rlimit) (err error)
650 //sysnb Setsid() (pid int, err error)
651 //sysnb Setuid(uid int) (err error)
652 //sys Shutdown(s int, how int) (err error) = libsocket.shutdown
653 //sys Stat(path string, stat *Stat_t) (err error)
654 //sys Symlink(path string, link string) (err error)
655 //sys Sync() (err error)
656 //sysnb Times(tms *Tms) (ticks uintptr, err error)
657 //sys Truncate(path string, length int64) (err error)
658 //sys Fsync(fd int) (err error)
659 //sys Ftruncate(fd int, length int64) (err error)
660 //sys Umask(mask int) (oldmask int)
661 //sysnb Uname(buf *Utsname) (err error)
662 //sys Unmount(target string, flags int) (err error) = libc.umount
663 //sys Unlink(path string) (err error)
664 //sys Unlinkat(dirfd int, path string, flags int) (err error)
665 //sys Ustat(dev int, ubuf *Ustat_t) (err error)
666 //sys Utime(path string, buf *Utimbuf) (err error)
667 //sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) = libsocket.bind
668 //sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) = libsocket.connect
669 //sys mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error)
670 //sys munmap(addr uintptr, length uintptr) (err error)
671 //sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error) = libsocket.sendto
672 //sys socket(domain int, typ int, proto int) (fd int, err error) = libsocket.socket
673 //sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error) = libsocket.socketpair
674 //sys write(fd int, p []byte) (n int, err error)
675 //sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error) = libsocket.getsockopt
676 //sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) = libsocket.getpeername
677 //sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error) = libsocket.setsockopt
678 //sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error) = libsocket.recvfrom
680 func readlen(fd int, buf *byte, nbuf int) (n int, err error) {
681 r0, _, e1 := sysvicall6(uintptr(unsafe.Pointer(&procread)), 3, uintptr(fd), uintptr(unsafe.Pointer(buf)), uintptr(nbuf), 0, 0, 0)
689 func writelen(fd int, buf *byte, nbuf int) (n int, err error) {
690 r0, _, e1 := sysvicall6(uintptr(unsafe.Pointer(&procwrite)), 3, uintptr(fd), uintptr(unsafe.Pointer(buf)), uintptr(nbuf), 0, 0, 0)
698 var mapper = &mmapper{
699 active: make(map[*byte][]byte),
704 func Mmap(fd int, offset int64, length int, prot int, flags int) (data []byte, err error) {
705 return mapper.Mmap(fd, offset, length, prot, flags)
708 func Munmap(b []byte) (err error) {
709 return mapper.Munmap(b)
712 //sys sysconf(name int) (n int64, err error)
714 // pageSize caches the value of Getpagesize, since it can't change
715 // once the system is booted.
716 var pageSize int64 // accessed atomically
718 func Getpagesize() int {
719 n := atomic.LoadInt64(&pageSize)
721 n, _ = sysconf(_SC_PAGESIZE)
722 atomic.StoreInt64(&pageSize, n)