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 // SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets.
28 type SockaddrDatalink struct {
36 raw RawSockaddrDatalink
39 func direntIno(buf []byte) (uint64, bool) {
40 return readInt(buf, unsafe.Offsetof(Dirent{}.Ino), unsafe.Sizeof(Dirent{}.Ino))
43 func direntReclen(buf []byte) (uint64, bool) {
44 return readInt(buf, unsafe.Offsetof(Dirent{}.Reclen), unsafe.Sizeof(Dirent{}.Reclen))
47 func direntNamlen(buf []byte) (uint64, bool) {
48 reclen, ok := direntReclen(buf)
52 return reclen - uint64(unsafe.Offsetof(Dirent{}.Name)), true
55 //sysnb pipe(p *[2]_C_int) (n int, err error)
57 func Pipe(p []int) (err error) {
71 //sysnb pipe2(p *[2]_C_int, flags int) (err error)
73 func Pipe2(p []int, flags int) error {
78 err := pipe2(&pp, flags)
84 func (sa *SockaddrInet4) sockaddr() (unsafe.Pointer, _Socklen, error) {
85 if sa.Port < 0 || sa.Port > 0xFFFF {
88 sa.raw.Family = AF_INET
89 p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
90 p[0] = byte(sa.Port >> 8)
92 for i := 0; i < len(sa.Addr); i++ {
93 sa.raw.Addr[i] = sa.Addr[i]
95 return unsafe.Pointer(&sa.raw), SizeofSockaddrInet4, nil
98 func (sa *SockaddrInet6) sockaddr() (unsafe.Pointer, _Socklen, error) {
99 if sa.Port < 0 || sa.Port > 0xFFFF {
100 return nil, 0, EINVAL
102 sa.raw.Family = AF_INET6
103 p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
104 p[0] = byte(sa.Port >> 8)
106 sa.raw.Scope_id = sa.ZoneId
107 for i := 0; i < len(sa.Addr); i++ {
108 sa.raw.Addr[i] = sa.Addr[i]
110 return unsafe.Pointer(&sa.raw), SizeofSockaddrInet6, nil
113 func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, _Socklen, error) {
116 if n >= len(sa.raw.Path) {
117 return nil, 0, EINVAL
119 sa.raw.Family = AF_UNIX
120 for i := 0; i < n; i++ {
121 sa.raw.Path[i] = int8(name[i])
123 // length is family (uint16), name, NUL.
126 sl += _Socklen(n) + 1
128 if sa.raw.Path[0] == '@' {
130 // Don't count trailing NUL for abstract address.
134 return unsafe.Pointer(&sa.raw), sl, nil
137 //sys getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) = libsocket.getsockname
139 func Getsockname(fd int) (sa Sockaddr, err error) {
140 var rsa RawSockaddrAny
141 var len _Socklen = SizeofSockaddrAny
142 if err = getsockname(fd, &rsa, &len); err != nil {
145 return anyToSockaddr(fd, &rsa)
148 // GetsockoptString returns the string value of the socket option opt for the
149 // socket associated with fd at the given socket level.
150 func GetsockoptString(fd, level, opt int) (string, error) {
151 buf := make([]byte, 256)
152 vallen := _Socklen(len(buf))
153 err := getsockopt(fd, level, opt, unsafe.Pointer(&buf[0]), &vallen)
157 return string(buf[:vallen-1]), nil
160 const ImplementsGetwd = true
162 //sys Getcwd(buf []byte) (n int, err error)
164 func Getwd() (wd string, err error) {
165 var buf [PathMax]byte
166 // Getcwd will return an error if it failed for any reason.
167 _, err = Getcwd(buf[0:])
175 return string(buf[:n]), nil
182 //sysnb getgroups(ngid int, gid *_Gid_t) (n int, err error)
183 //sysnb setgroups(ngid int, gid *_Gid_t) (err error)
185 func Getgroups() (gids []int, err error) {
186 n, err := getgroups(0, nil)
187 // Check for error and sanity check group count. Newer versions of
188 // Solaris allow up to 1024 (NGROUPS_MAX).
189 if n < 0 || n > 1024 {
198 a := make([]_Gid_t, n)
199 n, err = getgroups(n, &a[0])
203 gids = make([]int, n)
204 for i, v := range a[0:n] {
210 func Setgroups(gids []int) (err error) {
212 return setgroups(0, nil)
215 a := make([]_Gid_t, len(gids))
216 for i, v := range gids {
219 return setgroups(len(a), &a[0])
222 // ReadDirent reads directory entries from fd and writes them into buf.
223 func ReadDirent(fd int, buf []byte) (n int, err error) {
224 // Final argument is (basep *uintptr) and the syscall doesn't take nil.
225 // TODO(rsc): Can we use a single global basep for all calls?
226 return Getdents(fd, buf, new(uintptr))
229 // Wait status is 7 bits at bottom, either 0 (exited),
230 // 0x7F (stopped), or a signal number that caused an exit.
231 // The 0x80 bit is whether there was a core dump.
232 // An extra number (exit code, signal causing a stop)
233 // is in the high bits.
235 type WaitStatus uint32
246 func (w WaitStatus) Exited() bool { return w&mask == exited }
248 func (w WaitStatus) ExitStatus() int {
249 if w&mask != exited {
252 return int(w >> shift)
255 func (w WaitStatus) Signaled() bool { return w&mask != stopped && w&mask != 0 }
257 func (w WaitStatus) Signal() syscall.Signal {
258 sig := syscall.Signal(w & mask)
259 if sig == stopped || sig == 0 {
265 func (w WaitStatus) CoreDump() bool { return w.Signaled() && w&core != 0 }
267 func (w WaitStatus) Stopped() bool { return w&mask == stopped && syscall.Signal(w>>shift) != SIGSTOP }
269 func (w WaitStatus) Continued() bool { return w&mask == stopped && syscall.Signal(w>>shift) == SIGSTOP }
271 func (w WaitStatus) StopSignal() syscall.Signal {
275 return syscall.Signal(w>>shift) & 0xFF
278 func (w WaitStatus) TrapCause() int { return -1 }
280 //sys wait4(pid int32, statusp *_C_int, options int, rusage *Rusage) (wpid int32, err error)
282 func Wait4(pid int, wstatus *WaitStatus, options int, rusage *Rusage) (int, error) {
284 rpid, err := wait4(int32(pid), &status, options, rusage)
290 *wstatus = WaitStatus(status)
295 //sys gethostname(buf []byte) (n int, err error)
297 func Gethostname() (name string, err error) {
298 var buf [MaxHostNameLen]byte
299 n, err := gethostname(buf[:])
307 return string(buf[:n]), nil
310 //sys utimes(path string, times *[2]Timeval) (err error)
312 func Utimes(path string, tv []Timeval) (err error) {
314 return utimes(path, nil)
319 return utimes(path, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
322 //sys utimensat(fd int, path string, times *[2]Timespec, flag int) (err error)
324 func UtimesNano(path string, ts []Timespec) error {
326 return utimensat(AT_FDCWD, path, nil, 0)
331 return utimensat(AT_FDCWD, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0)
334 func UtimesNanoAt(dirfd int, path string, ts []Timespec, flags int) error {
336 return utimensat(dirfd, path, nil, flags)
341 return utimensat(dirfd, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), flags)
344 //sys fcntl(fd int, cmd int, arg int) (val int, err error)
346 // FcntlInt performs a fcntl syscall on fd with the provided command and argument.
347 func FcntlInt(fd uintptr, cmd, arg int) (int, error) {
348 valptr, _, errno := sysvicall6(uintptr(unsafe.Pointer(&procfcntl)), 3, uintptr(fd), uintptr(cmd), uintptr(arg), 0, 0, 0)
353 return int(valptr), err
356 // FcntlFlock performs a fcntl syscall for the F_GETLK, F_SETLK or F_SETLKW command.
357 func FcntlFlock(fd uintptr, cmd int, lk *Flock_t) error {
358 _, _, e1 := sysvicall6(uintptr(unsafe.Pointer(&procfcntl)), 3, uintptr(fd), uintptr(cmd), uintptr(unsafe.Pointer(lk)), 0, 0, 0)
365 //sys futimesat(fildes int, path *byte, times *[2]Timeval) (err error)
367 func Futimesat(dirfd int, path string, tv []Timeval) error {
368 pathp, err := BytePtrFromString(path)
373 return futimesat(dirfd, pathp, nil)
378 return futimesat(dirfd, pathp, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
381 // Solaris doesn't have an futimes function because it allows NULL to be
382 // specified as the path for futimesat. However, Go doesn't like
383 // NULL-style string interfaces, so this simple wrapper is provided.
384 func Futimes(fd int, tv []Timeval) error {
386 return futimesat(fd, nil, nil)
391 return futimesat(fd, nil, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
394 func anyToSockaddr(fd int, rsa *RawSockaddrAny) (Sockaddr, error) {
395 switch rsa.Addr.Family {
397 pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa))
398 sa := new(SockaddrUnix)
399 // Assume path ends at NUL.
400 // This is not technically the Solaris semantics for
401 // abstract Unix domain sockets -- they are supposed
402 // to be uninterpreted fixed-size binary blobs -- but
403 // everyone uses this convention.
405 for n < len(pp.Path) && pp.Path[n] != 0 {
408 bytes := (*[len(pp.Path)]byte)(unsafe.Pointer(&pp.Path[0]))[0:n]
409 sa.Name = string(bytes)
413 pp := (*RawSockaddrInet4)(unsafe.Pointer(rsa))
414 sa := new(SockaddrInet4)
415 p := (*[2]byte)(unsafe.Pointer(&pp.Port))
416 sa.Port = int(p[0])<<8 + int(p[1])
417 for i := 0; i < len(sa.Addr); i++ {
418 sa.Addr[i] = pp.Addr[i]
423 pp := (*RawSockaddrInet6)(unsafe.Pointer(rsa))
424 sa := new(SockaddrInet6)
425 p := (*[2]byte)(unsafe.Pointer(&pp.Port))
426 sa.Port = int(p[0])<<8 + int(p[1])
427 sa.ZoneId = pp.Scope_id
428 for i := 0; i < len(sa.Addr); i++ {
429 sa.Addr[i] = pp.Addr[i]
433 return nil, EAFNOSUPPORT
436 //sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error) = libsocket.accept
438 func Accept(fd int) (nfd int, sa Sockaddr, err error) {
439 var rsa RawSockaddrAny
440 var len _Socklen = SizeofSockaddrAny
441 nfd, err = accept(fd, &rsa, &len)
445 sa, err = anyToSockaddr(fd, &rsa)
453 //sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error) = libsocket.__xnet_recvmsg
455 func Recvmsg(fd int, p, oob []byte, flags int) (n, oobn int, recvflags int, from Sockaddr, err error) {
457 var rsa RawSockaddrAny
458 msg.Name = (*byte)(unsafe.Pointer(&rsa))
459 msg.Namelen = uint32(SizeofSockaddrAny)
462 iov.Base = (*int8)(unsafe.Pointer(&p[0]))
467 // receive at least one normal byte
472 msg.Accrightslen = int32(len(oob))
476 if n, err = recvmsg(fd, &msg, flags); n == -1 {
479 oobn = int(msg.Accrightslen)
480 // source address is only specified if the socket is unconnected
481 if rsa.Addr.Family != AF_UNSPEC {
482 from, err = anyToSockaddr(fd, &rsa)
487 func Sendmsg(fd int, p, oob []byte, to Sockaddr, flags int) (err error) {
488 _, err = SendmsgN(fd, p, oob, to, flags)
492 //sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error) = libsocket.__xnet_sendmsg
494 func SendmsgN(fd int, p, oob []byte, to Sockaddr, flags int) (n int, err error) {
495 var ptr unsafe.Pointer
498 ptr, salen, err = to.sockaddr()
504 msg.Name = (*byte)(unsafe.Pointer(ptr))
505 msg.Namelen = uint32(salen)
508 iov.Base = (*int8)(unsafe.Pointer(&p[0]))
513 // send at least one normal byte
518 msg.Accrightslen = int32(len(oob))
522 if n, err = sendmsg(fd, &msg, flags); err != nil {
525 if len(oob) > 0 && len(p) == 0 {
531 //sys acct(path *byte) (err error)
533 func Acct(path string) (err error) {
535 // Assume caller wants to disable accounting.
539 pathp, err := BytePtrFromString(path)
546 //sys __makedev(version int, major uint, minor uint) (val uint64)
548 func Mkdev(major, minor uint32) uint64 {
549 return __makedev(NEWDEV, uint(major), uint(minor))
552 //sys __major(version int, dev uint64) (val uint)
554 func Major(dev uint64) uint32 {
555 return uint32(__major(NEWDEV, dev))
558 //sys __minor(version int, dev uint64) (val uint)
560 func Minor(dev uint64) uint32 {
561 return uint32(__minor(NEWDEV, dev))
565 * Expose the ioctl function
568 //sys ioctl(fd int, req uint, arg uintptr) (err error)
570 func IoctlSetTermio(fd int, req uint, value *Termio) error {
571 err := ioctl(fd, req, uintptr(unsafe.Pointer(value)))
572 runtime.KeepAlive(value)
576 func IoctlGetTermio(fd int, req uint) (*Termio, error) {
578 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
582 //sys poll(fds *PollFd, nfds int, timeout int) (n int, err error)
584 func Poll(fds []PollFd, timeout int) (n int, err error) {
586 return poll(nil, 0, timeout)
588 return poll(&fds[0], len(fds), timeout)
591 func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
593 raceReleaseMerge(unsafe.Pointer(&ioSync))
595 return sendfile(outfd, infd, offset, count)
601 //sys Access(path string, mode uint32) (err error)
602 //sys Adjtime(delta *Timeval, olddelta *Timeval) (err error)
603 //sys Chdir(path string) (err error)
604 //sys Chmod(path string, mode uint32) (err error)
605 //sys Chown(path string, uid int, gid int) (err error)
606 //sys Chroot(path string) (err error)
607 //sys Close(fd int) (err error)
608 //sys Creat(path string, mode uint32) (fd int, err error)
609 //sys Dup(fd int) (nfd int, err error)
610 //sys Dup2(oldfd int, newfd int) (err error)
612 //sys Faccessat(dirfd int, path string, mode uint32, flags int) (err error)
613 //sys Fchdir(fd int) (err error)
614 //sys Fchmod(fd int, mode uint32) (err error)
615 //sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error)
616 //sys Fchown(fd int, uid int, gid int) (err error)
617 //sys Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error)
618 //sys Fdatasync(fd int) (err error)
619 //sys Flock(fd int, how int) (err error)
620 //sys Fpathconf(fd int, name int) (val int, err error)
621 //sys Fstat(fd int, stat *Stat_t) (err error)
622 //sys Fstatat(fd int, path string, stat *Stat_t, flags int) (err error)
623 //sys Fstatvfs(fd int, vfsstat *Statvfs_t) (err error)
624 //sys Getdents(fd int, buf []byte, basep *uintptr) (n int, err error)
625 //sysnb Getgid() (gid int)
626 //sysnb Getpid() (pid int)
627 //sysnb Getpgid(pid int) (pgid int, err error)
628 //sysnb Getpgrp() (pgid int, err error)
629 //sys Geteuid() (euid int)
630 //sys Getegid() (egid int)
631 //sys Getppid() (ppid int)
632 //sys Getpriority(which int, who int) (n int, err error)
633 //sysnb Getrlimit(which int, lim *Rlimit) (err error)
634 //sysnb Getrusage(who int, rusage *Rusage) (err error)
635 //sysnb Gettimeofday(tv *Timeval) (err error)
636 //sysnb Getuid() (uid int)
637 //sys Kill(pid int, signum syscall.Signal) (err error)
638 //sys Lchown(path string, uid int, gid int) (err error)
639 //sys Link(path string, link string) (err error)
640 //sys Listen(s int, backlog int) (err error) = libsocket.__xnet_llisten
641 //sys Lstat(path string, stat *Stat_t) (err error)
642 //sys Madvise(b []byte, advice int) (err error)
643 //sys Mkdir(path string, mode uint32) (err error)
644 //sys Mkdirat(dirfd int, path string, mode uint32) (err error)
645 //sys Mkfifo(path string, mode uint32) (err error)
646 //sys Mkfifoat(dirfd int, path string, mode uint32) (err error)
647 //sys Mknod(path string, mode uint32, dev int) (err error)
648 //sys Mknodat(dirfd int, path string, mode uint32, dev int) (err error)
649 //sys Mlock(b []byte) (err error)
650 //sys Mlockall(flags int) (err error)
651 //sys Mprotect(b []byte, prot int) (err error)
652 //sys Msync(b []byte, flags int) (err error)
653 //sys Munlock(b []byte) (err error)
654 //sys Munlockall() (err error)
655 //sys Nanosleep(time *Timespec, leftover *Timespec) (err error)
656 //sys Open(path string, mode int, perm uint32) (fd int, err error)
657 //sys Openat(dirfd int, path string, flags int, mode uint32) (fd int, err error)
658 //sys Pathconf(path string, name int) (val int, err error)
659 //sys Pause() (err error)
660 //sys Pread(fd int, p []byte, offset int64) (n int, err error)
661 //sys Pwrite(fd int, p []byte, offset int64) (n int, err error)
662 //sys read(fd int, p []byte) (n int, err error)
663 //sys Readlink(path string, buf []byte) (n int, err error)
664 //sys Rename(from string, to string) (err error)
665 //sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error)
666 //sys Rmdir(path string) (err error)
667 //sys Seek(fd int, offset int64, whence int) (newoffset int64, err error) = lseek
668 //sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error)
669 //sysnb Setegid(egid int) (err error)
670 //sysnb Seteuid(euid int) (err error)
671 //sysnb Setgid(gid int) (err error)
672 //sys Sethostname(p []byte) (err error)
673 //sysnb Setpgid(pid int, pgid int) (err error)
674 //sys Setpriority(which int, who int, prio int) (err error)
675 //sysnb Setregid(rgid int, egid int) (err error)
676 //sysnb Setreuid(ruid int, euid int) (err error)
677 //sysnb Setrlimit(which int, lim *Rlimit) (err error)
678 //sysnb Setsid() (pid int, err error)
679 //sysnb Setuid(uid int) (err error)
680 //sys Shutdown(s int, how int) (err error) = libsocket.shutdown
681 //sys Stat(path string, stat *Stat_t) (err error)
682 //sys Statvfs(path string, vfsstat *Statvfs_t) (err error)
683 //sys Symlink(path string, link string) (err error)
684 //sys Sync() (err error)
685 //sysnb Times(tms *Tms) (ticks uintptr, err error)
686 //sys Truncate(path string, length int64) (err error)
687 //sys Fsync(fd int) (err error)
688 //sys Ftruncate(fd int, length int64) (err error)
689 //sys Umask(mask int) (oldmask int)
690 //sysnb Uname(buf *Utsname) (err error)
691 //sys Unmount(target string, flags int) (err error) = libc.umount
692 //sys Unlink(path string) (err error)
693 //sys Unlinkat(dirfd int, path string, flags int) (err error)
694 //sys Ustat(dev int, ubuf *Ustat_t) (err error)
695 //sys Utime(path string, buf *Utimbuf) (err error)
696 //sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) = libsocket.__xnet_bind
697 //sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) = libsocket.__xnet_connect
698 //sys mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error)
699 //sys munmap(addr uintptr, length uintptr) (err error)
700 //sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) = libsendfile.sendfile
701 //sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error) = libsocket.__xnet_sendto
702 //sys socket(domain int, typ int, proto int) (fd int, err error) = libsocket.__xnet_socket
703 //sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error) = libsocket.__xnet_socketpair
704 //sys write(fd int, p []byte) (n int, err error)
705 //sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error) = libsocket.__xnet_getsockopt
706 //sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) = libsocket.getpeername
707 //sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error) = libsocket.setsockopt
708 //sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error) = libsocket.recvfrom
710 func readlen(fd int, buf *byte, nbuf int) (n int, err error) {
711 r0, _, e1 := sysvicall6(uintptr(unsafe.Pointer(&procread)), 3, uintptr(fd), uintptr(unsafe.Pointer(buf)), uintptr(nbuf), 0, 0, 0)
719 func writelen(fd int, buf *byte, nbuf int) (n int, err error) {
720 r0, _, e1 := sysvicall6(uintptr(unsafe.Pointer(&procwrite)), 3, uintptr(fd), uintptr(unsafe.Pointer(buf)), uintptr(nbuf), 0, 0, 0)
728 var mapper = &mmapper{
729 active: make(map[*byte][]byte),
734 func Mmap(fd int, offset int64, length int, prot int, flags int) (data []byte, err error) {
735 return mapper.Mmap(fd, offset, length, prot, flags)
738 func Munmap(b []byte) (err error) {
739 return mapper.Munmap(b)