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 func pipe() (r uintptr, w uintptr, err uintptr)
77 func Pipe(p []int) (err error) {
83 err = syscall.Errno(e1)
85 p[0], p[1] = int(r0), int(w0)
89 func (sa *SockaddrInet4) sockaddr() (unsafe.Pointer, _Socklen, error) {
90 if sa.Port < 0 || sa.Port > 0xFFFF {
93 sa.raw.Family = AF_INET
94 p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
95 p[0] = byte(sa.Port >> 8)
97 for i := 0; i < len(sa.Addr); i++ {
98 sa.raw.Addr[i] = sa.Addr[i]
100 return unsafe.Pointer(&sa.raw), SizeofSockaddrInet4, nil
103 func (sa *SockaddrInet6) sockaddr() (unsafe.Pointer, _Socklen, error) {
104 if sa.Port < 0 || sa.Port > 0xFFFF {
105 return nil, 0, EINVAL
107 sa.raw.Family = AF_INET6
108 p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
109 p[0] = byte(sa.Port >> 8)
111 sa.raw.Scope_id = sa.ZoneId
112 for i := 0; i < len(sa.Addr); i++ {
113 sa.raw.Addr[i] = sa.Addr[i]
115 return unsafe.Pointer(&sa.raw), SizeofSockaddrInet6, nil
118 func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, _Socklen, error) {
121 if n >= len(sa.raw.Path) {
122 return nil, 0, EINVAL
124 sa.raw.Family = AF_UNIX
125 for i := 0; i < n; i++ {
126 sa.raw.Path[i] = int8(name[i])
128 // length is family (uint16), name, NUL.
131 sl += _Socklen(n) + 1
133 if sa.raw.Path[0] == '@' {
135 // Don't count trailing NUL for abstract address.
139 return unsafe.Pointer(&sa.raw), sl, nil
142 //sys getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) = libsocket.getsockname
144 func Getsockname(fd int) (sa Sockaddr, err error) {
145 var rsa RawSockaddrAny
146 var len _Socklen = SizeofSockaddrAny
147 if err = getsockname(fd, &rsa, &len); err != nil {
150 return anyToSockaddr(&rsa)
153 const ImplementsGetwd = true
155 //sys Getcwd(buf []byte) (n int, err error)
157 func Getwd() (wd string, err error) {
158 var buf [PathMax]byte
159 // Getcwd will return an error if it failed for any reason.
160 _, err = Getcwd(buf[0:])
168 return string(buf[:n]), nil
175 //sysnb getgroups(ngid int, gid *_Gid_t) (n int, err error)
176 //sysnb setgroups(ngid int, gid *_Gid_t) (err error)
178 func Getgroups() (gids []int, err error) {
179 n, err := getgroups(0, nil)
180 // Check for error and sanity check group count. Newer versions of
181 // Solaris allow up to 1024 (NGROUPS_MAX).
182 if n < 0 || n > 1024 {
191 a := make([]_Gid_t, n)
192 n, err = getgroups(n, &a[0])
196 gids = make([]int, n)
197 for i, v := range a[0:n] {
203 func Setgroups(gids []int) (err error) {
205 return setgroups(0, nil)
208 a := make([]_Gid_t, len(gids))
209 for i, v := range gids {
212 return setgroups(len(a), &a[0])
215 func ReadDirent(fd int, buf []byte) (n int, err error) {
216 // Final argument is (basep *uintptr) and the syscall doesn't take nil.
217 // TODO(rsc): Can we use a single global basep for all calls?
218 return Getdents(fd, buf, new(uintptr))
221 // Wait status is 7 bits at bottom, either 0 (exited),
222 // 0x7F (stopped), or a signal number that caused an exit.
223 // The 0x80 bit is whether there was a core dump.
224 // An extra number (exit code, signal causing a stop)
225 // is in the high bits.
227 type WaitStatus uint32
238 func (w WaitStatus) Exited() bool { return w&mask == exited }
240 func (w WaitStatus) ExitStatus() int {
241 if w&mask != exited {
244 return int(w >> shift)
247 func (w WaitStatus) Signaled() bool { return w&mask != stopped && w&mask != 0 }
249 func (w WaitStatus) Signal() syscall.Signal {
250 sig := syscall.Signal(w & mask)
251 if sig == stopped || sig == 0 {
257 func (w WaitStatus) CoreDump() bool { return w.Signaled() && w&core != 0 }
259 func (w WaitStatus) Stopped() bool { return w&mask == stopped && syscall.Signal(w>>shift) != SIGSTOP }
261 func (w WaitStatus) Continued() bool { return w&mask == stopped && syscall.Signal(w>>shift) == SIGSTOP }
263 func (w WaitStatus) StopSignal() syscall.Signal {
267 return syscall.Signal(w>>shift) & 0xFF
270 func (w WaitStatus) TrapCause() int { return -1 }
272 func wait4(pid uintptr, wstatus *WaitStatus, options uintptr, rusage *Rusage) (wpid uintptr, err uintptr)
274 func Wait4(pid int, wstatus *WaitStatus, options int, rusage *Rusage) (wpid int, err error) {
275 r0, e1 := wait4(uintptr(pid), wstatus, uintptr(options), rusage)
277 err = syscall.Errno(e1)
282 func gethostname() (name string, err uintptr)
284 func Gethostname() (name string, err error) {
285 name, e1 := gethostname()
287 err = syscall.Errno(e1)
292 //sys utimes(path string, times *[2]Timeval) (err error)
294 func Utimes(path string, tv []Timeval) (err error) {
296 return utimes(path, nil)
301 return utimes(path, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
304 //sys utimensat(fd int, path string, times *[2]Timespec, flag int) (err error)
306 func UtimesNano(path string, ts []Timespec) error {
308 return utimensat(AT_FDCWD, path, nil, 0)
313 return utimensat(AT_FDCWD, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0)
316 func UtimesNanoAt(dirfd int, path string, ts []Timespec, flags int) error {
318 return utimensat(dirfd, path, nil, flags)
323 return utimensat(dirfd, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), flags)
326 //sys fcntl(fd int, cmd int, arg int) (val int, err error)
328 // FcntlFlock performs a fcntl syscall for the F_GETLK, F_SETLK or F_SETLKW command.
329 func FcntlFlock(fd uintptr, cmd int, lk *Flock_t) error {
330 _, _, e1 := sysvicall6(uintptr(unsafe.Pointer(&procfcntl)), 3, uintptr(fd), uintptr(cmd), uintptr(unsafe.Pointer(lk)), 0, 0, 0)
337 //sys futimesat(fildes int, path *byte, times *[2]Timeval) (err error)
339 func Futimesat(dirfd int, path string, tv []Timeval) error {
340 pathp, err := BytePtrFromString(path)
345 return futimesat(dirfd, pathp, nil)
350 return futimesat(dirfd, pathp, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
353 // Solaris doesn't have an futimes function because it allows NULL to be
354 // specified as the path for futimesat. However, Go doesn't like
355 // NULL-style string interfaces, so this simple wrapper is provided.
356 func Futimes(fd int, tv []Timeval) error {
358 return futimesat(fd, nil, nil)
363 return futimesat(fd, nil, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
366 func anyToSockaddr(rsa *RawSockaddrAny) (Sockaddr, error) {
367 switch rsa.Addr.Family {
369 pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa))
370 sa := new(SockaddrUnix)
371 // Assume path ends at NUL.
372 // This is not technically the Solaris semantics for
373 // abstract Unix domain sockets -- they are supposed
374 // to be uninterpreted fixed-size binary blobs -- but
375 // everyone uses this convention.
377 for n < len(pp.Path) && pp.Path[n] != 0 {
380 bytes := (*[10000]byte)(unsafe.Pointer(&pp.Path[0]))[0:n]
381 sa.Name = string(bytes)
385 pp := (*RawSockaddrInet4)(unsafe.Pointer(rsa))
386 sa := new(SockaddrInet4)
387 p := (*[2]byte)(unsafe.Pointer(&pp.Port))
388 sa.Port = int(p[0])<<8 + int(p[1])
389 for i := 0; i < len(sa.Addr); i++ {
390 sa.Addr[i] = pp.Addr[i]
395 pp := (*RawSockaddrInet6)(unsafe.Pointer(rsa))
396 sa := new(SockaddrInet6)
397 p := (*[2]byte)(unsafe.Pointer(&pp.Port))
398 sa.Port = int(p[0])<<8 + int(p[1])
399 sa.ZoneId = pp.Scope_id
400 for i := 0; i < len(sa.Addr); i++ {
401 sa.Addr[i] = pp.Addr[i]
405 return nil, EAFNOSUPPORT
408 //sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error) = libsocket.accept
410 func Accept(fd int) (nfd int, sa Sockaddr, err error) {
411 var rsa RawSockaddrAny
412 var len _Socklen = SizeofSockaddrAny
413 nfd, err = accept(fd, &rsa, &len)
417 sa, err = anyToSockaddr(&rsa)
425 //sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error) = libsocket.recvmsg
427 func Recvmsg(fd int, p, oob []byte, flags int) (n, oobn int, recvflags int, from Sockaddr, err error) {
429 var rsa RawSockaddrAny
430 msg.Name = (*byte)(unsafe.Pointer(&rsa))
431 msg.Namelen = uint32(SizeofSockaddrAny)
434 iov.Base = (*int8)(unsafe.Pointer(&p[0]))
439 // receive at least one normal byte
444 msg.Accrights = (*int8)(unsafe.Pointer(&oob[0]))
448 if n, err = recvmsg(fd, &msg, flags); n == -1 {
451 oobn = int(msg.Accrightslen)
452 // source address is only specified if the socket is unconnected
453 if rsa.Addr.Family != AF_UNSPEC {
454 from, err = anyToSockaddr(&rsa)
459 func Sendmsg(fd int, p, oob []byte, to Sockaddr, flags int) (err error) {
460 _, err = SendmsgN(fd, p, oob, to, flags)
464 //sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error) = libsocket.sendmsg
466 func SendmsgN(fd int, p, oob []byte, to Sockaddr, flags int) (n int, err error) {
467 var ptr unsafe.Pointer
470 ptr, salen, err = to.sockaddr()
476 msg.Name = (*byte)(unsafe.Pointer(ptr))
477 msg.Namelen = uint32(salen)
480 iov.Base = (*int8)(unsafe.Pointer(&p[0]))
485 // send at least one normal byte
490 msg.Accrights = (*int8)(unsafe.Pointer(&oob[0]))
494 if n, err = sendmsg(fd, &msg, flags); err != nil {
497 if len(oob) > 0 && len(p) == 0 {
503 //sys acct(path *byte) (err error)
505 func Acct(path string) (err error) {
507 // Assume caller wants to disable accounting.
511 pathp, err := BytePtrFromString(path)
519 * Expose the ioctl function
522 //sys ioctl(fd int, req int, arg uintptr) (err error)
524 func IoctlSetInt(fd int, req int, value int) (err error) {
525 return ioctl(fd, req, uintptr(value))
528 func IoctlSetWinsize(fd int, req int, value *Winsize) (err error) {
529 return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
532 func IoctlSetTermios(fd int, req int, value *Termios) (err error) {
533 return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
536 func IoctlSetTermio(fd int, req int, value *Termio) (err error) {
537 return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
540 func IoctlGetInt(fd int, req int) (int, error) {
542 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
546 func IoctlGetWinsize(fd int, req int) (*Winsize, error) {
548 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
552 func IoctlGetTermios(fd int, req int) (*Termios, error) {
554 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
558 func IoctlGetTermio(fd int, req int) (*Termio, error) {
560 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
567 //sys Access(path string, mode uint32) (err error)
568 //sys Adjtime(delta *Timeval, olddelta *Timeval) (err error)
569 //sys Chdir(path string) (err error)
570 //sys Chmod(path string, mode uint32) (err error)
571 //sys Chown(path string, uid int, gid int) (err error)
572 //sys Chroot(path string) (err error)
573 //sys Close(fd int) (err error)
574 //sys Creat(path string, mode uint32) (fd int, err error)
575 //sys Dup(fd int) (nfd int, err error)
576 //sys Dup2(oldfd int, newfd int) (err error)
578 //sys Fchdir(fd int) (err error)
579 //sys Fchmod(fd int, mode uint32) (err error)
580 //sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error)
581 //sys Fchown(fd int, uid int, gid int) (err error)
582 //sys Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error)
583 //sys Fdatasync(fd int) (err error)
584 //sys Fpathconf(fd int, name int) (val int, err error)
585 //sys Fstat(fd int, stat *Stat_t) (err error)
586 //sys Getdents(fd int, buf []byte, basep *uintptr) (n int, err error)
587 //sysnb Getgid() (gid int)
588 //sysnb Getpid() (pid int)
589 //sysnb Getpgid(pid int) (pgid int, err error)
590 //sysnb Getpgrp() (pgid int, err error)
591 //sys Geteuid() (euid int)
592 //sys Getegid() (egid int)
593 //sys Getppid() (ppid int)
594 //sys Getpriority(which int, who int) (n int, err error)
595 //sysnb Getrlimit(which int, lim *Rlimit) (err error)
596 //sysnb Getrusage(who int, rusage *Rusage) (err error)
597 //sysnb Gettimeofday(tv *Timeval) (err error)
598 //sysnb Getuid() (uid int)
599 //sys Kill(pid int, signum syscall.Signal) (err error)
600 //sys Lchown(path string, uid int, gid int) (err error)
601 //sys Link(path string, link string) (err error)
602 //sys Listen(s int, backlog int) (err error) = libsocket.listen
603 //sys Lstat(path string, stat *Stat_t) (err error)
604 //sys Madvise(b []byte, advice int) (err error)
605 //sys Mkdir(path string, mode uint32) (err error)
606 //sys Mkdirat(dirfd int, path string, mode uint32) (err error)
607 //sys Mkfifo(path string, mode uint32) (err error)
608 //sys Mkfifoat(dirfd int, path string, mode uint32) (err error)
609 //sys Mknod(path string, mode uint32, dev int) (err error)
610 //sys Mknodat(dirfd int, path string, mode uint32, dev int) (err error)
611 //sys Mlock(b []byte) (err error)
612 //sys Mlockall(flags int) (err error)
613 //sys Mprotect(b []byte, prot int) (err error)
614 //sys Munlock(b []byte) (err error)
615 //sys Munlockall() (err error)
616 //sys Nanosleep(time *Timespec, leftover *Timespec) (err error)
617 //sys Open(path string, mode int, perm uint32) (fd int, err error)
618 //sys Openat(dirfd int, path string, flags int, mode uint32) (fd int, err error)
619 //sys Pathconf(path string, name int) (val int, err error)
620 //sys Pause() (err error)
621 //sys Pread(fd int, p []byte, offset int64) (n int, err error)
622 //sys Pwrite(fd int, p []byte, offset int64) (n int, err error)
623 //sys read(fd int, p []byte) (n int, err error)
624 //sys Readlink(path string, buf []byte) (n int, err error)
625 //sys Rename(from string, to string) (err error)
626 //sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error)
627 //sys Rmdir(path string) (err error)
628 //sys Seek(fd int, offset int64, whence int) (newoffset int64, err error) = lseek
629 //sysnb Setegid(egid int) (err error)
630 //sysnb Seteuid(euid int) (err error)
631 //sysnb Setgid(gid int) (err error)
632 //sys Sethostname(p []byte) (err error)
633 //sysnb Setpgid(pid int, pgid int) (err error)
634 //sys Setpriority(which int, who int, prio int) (err error)
635 //sysnb Setregid(rgid int, egid int) (err error)
636 //sysnb Setreuid(ruid int, euid int) (err error)
637 //sysnb Setrlimit(which int, lim *Rlimit) (err error)
638 //sysnb Setsid() (pid int, err error)
639 //sysnb Setuid(uid int) (err error)
640 //sys Shutdown(s int, how int) (err error) = libsocket.shutdown
641 //sys Stat(path string, stat *Stat_t) (err error)
642 //sys Symlink(path string, link string) (err error)
643 //sys Sync() (err error)
644 //sysnb Times(tms *Tms) (ticks uintptr, err error)
645 //sys Truncate(path string, length int64) (err error)
646 //sys Fsync(fd int) (err error)
647 //sys Ftruncate(fd int, length int64) (err error)
648 //sys Umask(mask int) (oldmask int)
649 //sysnb Uname(buf *Utsname) (err error)
650 //sys Unmount(target string, flags int) (err error) = libc.umount
651 //sys Unlink(path string) (err error)
652 //sys Unlinkat(dirfd int, path string) (err error)
653 //sys Ustat(dev int, ubuf *Ustat_t) (err error)
654 //sys Utime(path string, buf *Utimbuf) (err error)
655 //sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) = libsocket.bind
656 //sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) = libsocket.connect
657 //sys mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error)
658 //sys munmap(addr uintptr, length uintptr) (err error)
659 //sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error) = libsocket.sendto
660 //sys socket(domain int, typ int, proto int) (fd int, err error) = libsocket.socket
661 //sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error) = libsocket.socketpair
662 //sys write(fd int, p []byte) (n int, err error)
663 //sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error) = libsocket.getsockopt
664 //sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) = libsocket.getpeername
665 //sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error) = libsocket.setsockopt
666 //sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error) = libsocket.recvfrom
668 func readlen(fd int, buf *byte, nbuf int) (n int, err error) {
669 r0, _, e1 := sysvicall6(uintptr(unsafe.Pointer(&procread)), 3, uintptr(fd), uintptr(unsafe.Pointer(buf)), uintptr(nbuf), 0, 0, 0)
677 func writelen(fd int, buf *byte, nbuf int) (n int, err error) {
678 r0, _, e1 := sysvicall6(uintptr(unsafe.Pointer(&procwrite)), 3, uintptr(fd), uintptr(unsafe.Pointer(buf)), uintptr(nbuf), 0, 0, 0)
686 var mapper = &mmapper{
687 active: make(map[*byte][]byte),
692 func Mmap(fd int, offset int64, length int, prot int, flags int) (data []byte, err error) {
693 return mapper.Mmap(fd, offset, length, prot, flags)
696 func Munmap(b []byte) (err error) {
697 return mapper.Munmap(b)
700 //sys sysconf(name int) (n int64, err error)
702 // pageSize caches the value of Getpagesize, since it can't change
703 // once the system is booted.
704 var pageSize int64 // accessed atomically
706 func Getpagesize() int {
707 n := atomic.LoadInt64(&pageSize)
709 n, _ = sysconf(_SC_PAGESIZE)
710 atomic.StoreInt64(&pageSize, n)