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.
20 // Implemented in runtime/syscall_solaris.go.
21 type syscallFunc uintptr
23 func rawSysvicall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.Errno)
24 func sysvicall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.Errno)
26 // SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets.
27 type SockaddrDatalink struct {
35 raw RawSockaddrDatalink
38 //sysnb pipe(p *[2]_C_int) (n int, err error)
40 func Pipe(p []int) (err error) {
54 func (sa *SockaddrInet4) sockaddr() (unsafe.Pointer, _Socklen, error) {
55 if sa.Port < 0 || sa.Port > 0xFFFF {
58 sa.raw.Family = AF_INET
59 p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
60 p[0] = byte(sa.Port >> 8)
62 for i := 0; i < len(sa.Addr); i++ {
63 sa.raw.Addr[i] = sa.Addr[i]
65 return unsafe.Pointer(&sa.raw), SizeofSockaddrInet4, nil
68 func (sa *SockaddrInet6) sockaddr() (unsafe.Pointer, _Socklen, error) {
69 if sa.Port < 0 || sa.Port > 0xFFFF {
72 sa.raw.Family = AF_INET6
73 p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
74 p[0] = byte(sa.Port >> 8)
76 sa.raw.Scope_id = sa.ZoneId
77 for i := 0; i < len(sa.Addr); i++ {
78 sa.raw.Addr[i] = sa.Addr[i]
80 return unsafe.Pointer(&sa.raw), SizeofSockaddrInet6, nil
83 func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, _Socklen, error) {
86 if n >= len(sa.raw.Path) {
89 sa.raw.Family = AF_UNIX
90 for i := 0; i < n; i++ {
91 sa.raw.Path[i] = int8(name[i])
93 // length is family (uint16), name, NUL.
98 if sa.raw.Path[0] == '@' {
100 // Don't count trailing NUL for abstract address.
104 return unsafe.Pointer(&sa.raw), sl, nil
107 //sys getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) = libsocket.getsockname
109 func Getsockname(fd int) (sa Sockaddr, err error) {
110 var rsa RawSockaddrAny
111 var len _Socklen = SizeofSockaddrAny
112 if err = getsockname(fd, &rsa, &len); err != nil {
115 return anyToSockaddr(fd, &rsa)
118 // GetsockoptString returns the string value of the socket option opt for the
119 // socket associated with fd at the given socket level.
120 func GetsockoptString(fd, level, opt int) (string, error) {
121 buf := make([]byte, 256)
122 vallen := _Socklen(len(buf))
123 err := getsockopt(fd, level, opt, unsafe.Pointer(&buf[0]), &vallen)
127 return string(buf[:vallen-1]), nil
130 const ImplementsGetwd = true
132 //sys Getcwd(buf []byte) (n int, err error)
134 func Getwd() (wd string, err error) {
135 var buf [PathMax]byte
136 // Getcwd will return an error if it failed for any reason.
137 _, err = Getcwd(buf[0:])
145 return string(buf[:n]), nil
152 //sysnb getgroups(ngid int, gid *_Gid_t) (n int, err error)
153 //sysnb setgroups(ngid int, gid *_Gid_t) (err error)
155 func Getgroups() (gids []int, err error) {
156 n, err := getgroups(0, nil)
157 // Check for error and sanity check group count. Newer versions of
158 // Solaris allow up to 1024 (NGROUPS_MAX).
159 if n < 0 || n > 1024 {
168 a := make([]_Gid_t, n)
169 n, err = getgroups(n, &a[0])
173 gids = make([]int, n)
174 for i, v := range a[0:n] {
180 func Setgroups(gids []int) (err error) {
182 return setgroups(0, nil)
185 a := make([]_Gid_t, len(gids))
186 for i, v := range gids {
189 return setgroups(len(a), &a[0])
192 func ReadDirent(fd int, buf []byte) (n int, err error) {
193 // Final argument is (basep *uintptr) and the syscall doesn't take nil.
194 // TODO(rsc): Can we use a single global basep for all calls?
195 return Getdents(fd, buf, new(uintptr))
198 // Wait status is 7 bits at bottom, either 0 (exited),
199 // 0x7F (stopped), or a signal number that caused an exit.
200 // The 0x80 bit is whether there was a core dump.
201 // An extra number (exit code, signal causing a stop)
202 // is in the high bits.
204 type WaitStatus uint32
215 func (w WaitStatus) Exited() bool { return w&mask == exited }
217 func (w WaitStatus) ExitStatus() int {
218 if w&mask != exited {
221 return int(w >> shift)
224 func (w WaitStatus) Signaled() bool { return w&mask != stopped && w&mask != 0 }
226 func (w WaitStatus) Signal() syscall.Signal {
227 sig := syscall.Signal(w & mask)
228 if sig == stopped || sig == 0 {
234 func (w WaitStatus) CoreDump() bool { return w.Signaled() && w&core != 0 }
236 func (w WaitStatus) Stopped() bool { return w&mask == stopped && syscall.Signal(w>>shift) != SIGSTOP }
238 func (w WaitStatus) Continued() bool { return w&mask == stopped && syscall.Signal(w>>shift) == SIGSTOP }
240 func (w WaitStatus) StopSignal() syscall.Signal {
244 return syscall.Signal(w>>shift) & 0xFF
247 func (w WaitStatus) TrapCause() int { return -1 }
249 //sys wait4(pid int32, statusp *_C_int, options int, rusage *Rusage) (wpid int32, err error)
251 func Wait4(pid int, wstatus *WaitStatus, options int, rusage *Rusage) (int, error) {
253 rpid, err := wait4(int32(pid), &status, options, rusage)
259 *wstatus = WaitStatus(status)
264 //sys gethostname(buf []byte) (n int, err error)
266 func Gethostname() (name string, err error) {
267 var buf [MaxHostNameLen]byte
268 n, err := gethostname(buf[:])
276 return string(buf[:n]), nil
279 //sys utimes(path string, times *[2]Timeval) (err error)
281 func Utimes(path string, tv []Timeval) (err error) {
283 return utimes(path, nil)
288 return utimes(path, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
291 //sys utimensat(fd int, path string, times *[2]Timespec, flag int) (err error)
293 func UtimesNano(path string, ts []Timespec) error {
295 return utimensat(AT_FDCWD, path, nil, 0)
300 return utimensat(AT_FDCWD, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0)
303 func UtimesNanoAt(dirfd int, path string, ts []Timespec, flags int) error {
305 return utimensat(dirfd, path, nil, flags)
310 return utimensat(dirfd, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), flags)
313 //sys fcntl(fd int, cmd int, arg int) (val int, err error)
315 // FcntlInt performs a fcntl syscall on fd with the provided command and argument.
316 func FcntlInt(fd uintptr, cmd, arg int) (int, error) {
317 valptr, _, errno := sysvicall6(uintptr(unsafe.Pointer(&procfcntl)), 3, uintptr(fd), uintptr(cmd), uintptr(arg), 0, 0, 0)
322 return int(valptr), err
325 // FcntlFlock performs a fcntl syscall for the F_GETLK, F_SETLK or F_SETLKW command.
326 func FcntlFlock(fd uintptr, cmd int, lk *Flock_t) error {
327 _, _, e1 := sysvicall6(uintptr(unsafe.Pointer(&procfcntl)), 3, uintptr(fd), uintptr(cmd), uintptr(unsafe.Pointer(lk)), 0, 0, 0)
334 //sys futimesat(fildes int, path *byte, times *[2]Timeval) (err error)
336 func Futimesat(dirfd int, path string, tv []Timeval) error {
337 pathp, err := BytePtrFromString(path)
342 return futimesat(dirfd, pathp, nil)
347 return futimesat(dirfd, pathp, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
350 // Solaris doesn't have an futimes function because it allows NULL to be
351 // specified as the path for futimesat. However, Go doesn't like
352 // NULL-style string interfaces, so this simple wrapper is provided.
353 func Futimes(fd int, tv []Timeval) error {
355 return futimesat(fd, nil, nil)
360 return futimesat(fd, nil, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
363 func anyToSockaddr(fd int, rsa *RawSockaddrAny) (Sockaddr, error) {
364 switch rsa.Addr.Family {
366 pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa))
367 sa := new(SockaddrUnix)
368 // Assume path ends at NUL.
369 // This is not technically the Solaris semantics for
370 // abstract Unix domain sockets -- they are supposed
371 // to be uninterpreted fixed-size binary blobs -- but
372 // everyone uses this convention.
374 for n < len(pp.Path) && pp.Path[n] != 0 {
377 bytes := (*[10000]byte)(unsafe.Pointer(&pp.Path[0]))[0:n]
378 sa.Name = string(bytes)
382 pp := (*RawSockaddrInet4)(unsafe.Pointer(rsa))
383 sa := new(SockaddrInet4)
384 p := (*[2]byte)(unsafe.Pointer(&pp.Port))
385 sa.Port = int(p[0])<<8 + int(p[1])
386 for i := 0; i < len(sa.Addr); i++ {
387 sa.Addr[i] = pp.Addr[i]
392 pp := (*RawSockaddrInet6)(unsafe.Pointer(rsa))
393 sa := new(SockaddrInet6)
394 p := (*[2]byte)(unsafe.Pointer(&pp.Port))
395 sa.Port = int(p[0])<<8 + int(p[1])
396 sa.ZoneId = pp.Scope_id
397 for i := 0; i < len(sa.Addr); i++ {
398 sa.Addr[i] = pp.Addr[i]
402 return nil, EAFNOSUPPORT
405 //sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error) = libsocket.accept
407 func Accept(fd int) (nfd int, sa Sockaddr, err error) {
408 var rsa RawSockaddrAny
409 var len _Socklen = SizeofSockaddrAny
410 nfd, err = accept(fd, &rsa, &len)
414 sa, err = anyToSockaddr(fd, &rsa)
422 //sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error) = libsocket.__xnet_recvmsg
424 func Recvmsg(fd int, p, oob []byte, flags int) (n, oobn int, recvflags int, from Sockaddr, err error) {
426 var rsa RawSockaddrAny
427 msg.Name = (*byte)(unsafe.Pointer(&rsa))
428 msg.Namelen = uint32(SizeofSockaddrAny)
431 iov.Base = (*int8)(unsafe.Pointer(&p[0]))
436 // receive at least one normal byte
441 msg.Accrightslen = int32(len(oob))
445 if n, err = recvmsg(fd, &msg, flags); n == -1 {
448 oobn = int(msg.Accrightslen)
449 // source address is only specified if the socket is unconnected
450 if rsa.Addr.Family != AF_UNSPEC {
451 from, err = anyToSockaddr(fd, &rsa)
456 func Sendmsg(fd int, p, oob []byte, to Sockaddr, flags int) (err error) {
457 _, err = SendmsgN(fd, p, oob, to, flags)
461 //sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error) = libsocket.__xnet_sendmsg
463 func SendmsgN(fd int, p, oob []byte, to Sockaddr, flags int) (n int, err error) {
464 var ptr unsafe.Pointer
467 ptr, salen, err = to.sockaddr()
473 msg.Name = (*byte)(unsafe.Pointer(ptr))
474 msg.Namelen = uint32(salen)
477 iov.Base = (*int8)(unsafe.Pointer(&p[0]))
482 // send at least one normal byte
487 msg.Accrightslen = int32(len(oob))
491 if n, err = sendmsg(fd, &msg, flags); err != nil {
494 if len(oob) > 0 && len(p) == 0 {
500 //sys acct(path *byte) (err error)
502 func Acct(path string) (err error) {
504 // Assume caller wants to disable accounting.
508 pathp, err := BytePtrFromString(path)
515 //sys __makedev(version int, major uint, minor uint) (val uint64)
517 func Mkdev(major, minor uint32) uint64 {
518 return __makedev(NEWDEV, uint(major), uint(minor))
521 //sys __major(version int, dev uint64) (val uint)
523 func Major(dev uint64) uint32 {
524 return uint32(__major(NEWDEV, dev))
527 //sys __minor(version int, dev uint64) (val uint)
529 func Minor(dev uint64) uint32 {
530 return uint32(__minor(NEWDEV, dev))
534 * Expose the ioctl function
537 //sys ioctl(fd int, req uint, arg uintptr) (err error)
539 func IoctlSetInt(fd int, req uint, value int) (err error) {
540 return ioctl(fd, req, uintptr(value))
543 func ioctlSetWinsize(fd int, req uint, value *Winsize) (err error) {
544 return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
547 func ioctlSetTermios(fd int, req uint, value *Termios) (err error) {
548 return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
551 func IoctlSetTermio(fd int, req uint, value *Termio) (err error) {
552 return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
555 func IoctlGetInt(fd int, req uint) (int, error) {
557 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
561 func IoctlGetWinsize(fd int, req uint) (*Winsize, error) {
563 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
567 func IoctlGetTermios(fd int, req uint) (*Termios, error) {
569 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
573 func IoctlGetTermio(fd int, req uint) (*Termio, error) {
575 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
579 //sys poll(fds *PollFd, nfds int, timeout int) (n int, err error)
581 func Poll(fds []PollFd, timeout int) (n int, err error) {
583 return poll(nil, 0, timeout)
585 return poll(&fds[0], len(fds), timeout)
588 func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
590 raceReleaseMerge(unsafe.Pointer(&ioSync))
592 return sendfile(outfd, infd, offset, count)
598 //sys Access(path string, mode uint32) (err error)
599 //sys Adjtime(delta *Timeval, olddelta *Timeval) (err error)
600 //sys Chdir(path string) (err error)
601 //sys Chmod(path string, mode uint32) (err error)
602 //sys Chown(path string, uid int, gid int) (err error)
603 //sys Chroot(path string) (err error)
604 //sys Close(fd int) (err error)
605 //sys Creat(path string, mode uint32) (fd int, err error)
606 //sys Dup(fd int) (nfd int, err error)
607 //sys Dup2(oldfd int, newfd int) (err error)
609 //sys Faccessat(dirfd int, path string, mode uint32, flags int) (err error)
610 //sys Fchdir(fd int) (err error)
611 //sys Fchmod(fd int, mode uint32) (err error)
612 //sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error)
613 //sys Fchown(fd int, uid int, gid int) (err error)
614 //sys Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error)
615 //sys Fdatasync(fd int) (err error)
616 //sys Flock(fd int, how int) (err error)
617 //sys Fpathconf(fd int, name int) (val int, err error)
618 //sys Fstat(fd int, stat *Stat_t) (err error)
619 //sys Fstatat(fd int, path string, stat *Stat_t, flags int) (err error)
620 //sys Fstatvfs(fd int, vfsstat *Statvfs_t) (err error)
621 //sys Getdents(fd int, buf []byte, basep *uintptr) (n int, err error)
622 //sysnb Getgid() (gid int)
623 //sysnb Getpid() (pid int)
624 //sysnb Getpgid(pid int) (pgid int, err error)
625 //sysnb Getpgrp() (pgid int, err error)
626 //sys Geteuid() (euid int)
627 //sys Getegid() (egid int)
628 //sys Getppid() (ppid int)
629 //sys Getpriority(which int, who int) (n int, err error)
630 //sysnb Getrlimit(which int, lim *Rlimit) (err error)
631 //sysnb Getrusage(who int, rusage *Rusage) (err error)
632 //sysnb Gettimeofday(tv *Timeval) (err error)
633 //sysnb Getuid() (uid int)
634 //sys Kill(pid int, signum syscall.Signal) (err error)
635 //sys Lchown(path string, uid int, gid int) (err error)
636 //sys Link(path string, link string) (err error)
637 //sys Listen(s int, backlog int) (err error) = libsocket.__xnet_llisten
638 //sys Lstat(path string, stat *Stat_t) (err error)
639 //sys Madvise(b []byte, advice int) (err error)
640 //sys Mkdir(path string, mode uint32) (err error)
641 //sys Mkdirat(dirfd int, path string, mode uint32) (err error)
642 //sys Mkfifo(path string, mode uint32) (err error)
643 //sys Mkfifoat(dirfd int, path string, mode uint32) (err error)
644 //sys Mknod(path string, mode uint32, dev int) (err error)
645 //sys Mknodat(dirfd int, path string, mode uint32, dev int) (err error)
646 //sys Mlock(b []byte) (err error)
647 //sys Mlockall(flags int) (err error)
648 //sys Mprotect(b []byte, prot int) (err error)
649 //sys Msync(b []byte, flags int) (err error)
650 //sys Munlock(b []byte) (err error)
651 //sys Munlockall() (err error)
652 //sys Nanosleep(time *Timespec, leftover *Timespec) (err error)
653 //sys Open(path string, mode int, perm uint32) (fd int, err error)
654 //sys Openat(dirfd int, path string, flags int, mode uint32) (fd int, err error)
655 //sys Pathconf(path string, name int) (val int, err error)
656 //sys Pause() (err error)
657 //sys Pread(fd int, p []byte, offset int64) (n int, err error)
658 //sys Pwrite(fd int, p []byte, offset int64) (n int, err error)
659 //sys read(fd int, p []byte) (n int, err error)
660 //sys Readlink(path string, buf []byte) (n int, err error)
661 //sys Rename(from string, to string) (err error)
662 //sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error)
663 //sys Rmdir(path string) (err error)
664 //sys Seek(fd int, offset int64, whence int) (newoffset int64, err error) = lseek
665 //sys Select(n int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (err error)
666 //sysnb Setegid(egid int) (err error)
667 //sysnb Seteuid(euid int) (err error)
668 //sysnb Setgid(gid int) (err error)
669 //sys Sethostname(p []byte) (err error)
670 //sysnb Setpgid(pid int, pgid int) (err error)
671 //sys Setpriority(which int, who int, prio int) (err error)
672 //sysnb Setregid(rgid int, egid int) (err error)
673 //sysnb Setreuid(ruid int, euid int) (err error)
674 //sysnb Setrlimit(which int, lim *Rlimit) (err error)
675 //sysnb Setsid() (pid int, err error)
676 //sysnb Setuid(uid int) (err error)
677 //sys Shutdown(s int, how int) (err error) = libsocket.shutdown
678 //sys Stat(path string, stat *Stat_t) (err error)
679 //sys Statvfs(path string, vfsstat *Statvfs_t) (err error)
680 //sys Symlink(path string, link string) (err error)
681 //sys Sync() (err error)
682 //sysnb Times(tms *Tms) (ticks uintptr, err error)
683 //sys Truncate(path string, length int64) (err error)
684 //sys Fsync(fd int) (err error)
685 //sys Ftruncate(fd int, length int64) (err error)
686 //sys Umask(mask int) (oldmask int)
687 //sysnb Uname(buf *Utsname) (err error)
688 //sys Unmount(target string, flags int) (err error) = libc.umount
689 //sys Unlink(path string) (err error)
690 //sys Unlinkat(dirfd int, path string, flags int) (err error)
691 //sys Ustat(dev int, ubuf *Ustat_t) (err error)
692 //sys Utime(path string, buf *Utimbuf) (err error)
693 //sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) = libsocket.__xnet_bind
694 //sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) = libsocket.__xnet_connect
695 //sys mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error)
696 //sys munmap(addr uintptr, length uintptr) (err error)
697 //sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) = libsendfile.sendfile
698 //sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error) = libsocket.__xnet_sendto
699 //sys socket(domain int, typ int, proto int) (fd int, err error) = libsocket.__xnet_socket
700 //sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error) = libsocket.__xnet_socketpair
701 //sys write(fd int, p []byte) (n int, err error)
702 //sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error) = libsocket.__xnet_getsockopt
703 //sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) = libsocket.getpeername
704 //sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error) = libsocket.setsockopt
705 //sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error) = libsocket.recvfrom
707 func readlen(fd int, buf *byte, nbuf int) (n int, err error) {
708 r0, _, e1 := sysvicall6(uintptr(unsafe.Pointer(&procread)), 3, uintptr(fd), uintptr(unsafe.Pointer(buf)), uintptr(nbuf), 0, 0, 0)
716 func writelen(fd int, buf *byte, nbuf int) (n int, err error) {
717 r0, _, e1 := sysvicall6(uintptr(unsafe.Pointer(&procwrite)), 3, uintptr(fd), uintptr(unsafe.Pointer(buf)), uintptr(nbuf), 0, 0, 0)
725 var mapper = &mmapper{
726 active: make(map[*byte][]byte),
731 func Mmap(fd int, offset int64, length int, prot int, flags int) (data []byte, err error) {
732 return mapper.Mmap(fd, offset, length, prot, flags)
735 func Munmap(b []byte) (err error) {
736 return mapper.Munmap(b)