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 func direntIno(buf []byte) (uint64, bool) {
48 return readInt(buf, unsafe.Offsetof(Dirent{}.Ino), unsafe.Sizeof(Dirent{}.Ino))
51 func direntReclen(buf []byte) (uint64, bool) {
52 return readInt(buf, unsafe.Offsetof(Dirent{}.Reclen), unsafe.Sizeof(Dirent{}.Reclen))
55 func direntNamlen(buf []byte) (uint64, bool) {
56 reclen, ok := direntReclen(buf)
60 return reclen - uint64(unsafe.Offsetof(Dirent{}.Name)), true
63 //sysnb pipe(p *[2]_C_int) (n int, err error)
65 func Pipe(p []int) (err error) {
79 func (sa *SockaddrInet4) sockaddr() (unsafe.Pointer, _Socklen, error) {
80 if sa.Port < 0 || sa.Port > 0xFFFF {
83 sa.raw.Family = AF_INET
84 p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
85 p[0] = byte(sa.Port >> 8)
87 for i := 0; i < len(sa.Addr); i++ {
88 sa.raw.Addr[i] = sa.Addr[i]
90 return unsafe.Pointer(&sa.raw), SizeofSockaddrInet4, nil
93 func (sa *SockaddrInet6) sockaddr() (unsafe.Pointer, _Socklen, error) {
94 if sa.Port < 0 || sa.Port > 0xFFFF {
97 sa.raw.Family = AF_INET6
98 p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
99 p[0] = byte(sa.Port >> 8)
101 sa.raw.Scope_id = sa.ZoneId
102 for i := 0; i < len(sa.Addr); i++ {
103 sa.raw.Addr[i] = sa.Addr[i]
105 return unsafe.Pointer(&sa.raw), SizeofSockaddrInet6, nil
108 func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, _Socklen, error) {
111 if n >= len(sa.raw.Path) {
112 return nil, 0, EINVAL
114 sa.raw.Family = AF_UNIX
115 for i := 0; i < n; i++ {
116 sa.raw.Path[i] = int8(name[i])
118 // length is family (uint16), name, NUL.
121 sl += _Socklen(n) + 1
123 if sa.raw.Path[0] == '@' {
125 // Don't count trailing NUL for abstract address.
129 return unsafe.Pointer(&sa.raw), sl, nil
132 //sys getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) = libsocket.getsockname
134 func Getsockname(fd int) (sa Sockaddr, err error) {
135 var rsa RawSockaddrAny
136 var len _Socklen = SizeofSockaddrAny
137 if err = getsockname(fd, &rsa, &len); err != nil {
140 return anyToSockaddr(&rsa)
143 const ImplementsGetwd = true
145 //sys Getcwd(buf []byte) (n int, err error)
147 func Getwd() (wd string, err error) {
148 var buf [PathMax]byte
149 // Getcwd will return an error if it failed for any reason.
150 _, err = Getcwd(buf[0:])
158 return string(buf[:n]), nil
165 //sysnb getgroups(ngid int, gid *_Gid_t) (n int, err error)
166 //sysnb setgroups(ngid int, gid *_Gid_t) (err error)
168 func Getgroups() (gids []int, err error) {
169 n, err := getgroups(0, nil)
170 // Check for error and sanity check group count. Newer versions of
171 // Solaris allow up to 1024 (NGROUPS_MAX).
172 if n < 0 || n > 1024 {
181 a := make([]_Gid_t, n)
182 n, err = getgroups(n, &a[0])
186 gids = make([]int, n)
187 for i, v := range a[0:n] {
193 func Setgroups(gids []int) (err error) {
195 return setgroups(0, nil)
198 a := make([]_Gid_t, len(gids))
199 for i, v := range gids {
202 return setgroups(len(a), &a[0])
205 func ReadDirent(fd int, buf []byte) (n int, err error) {
206 // Final argument is (basep *uintptr) and the syscall doesn't take nil.
207 // TODO(rsc): Can we use a single global basep for all calls?
208 return Getdents(fd, buf, new(uintptr))
211 // Wait status is 7 bits at bottom, either 0 (exited),
212 // 0x7F (stopped), or a signal number that caused an exit.
213 // The 0x80 bit is whether there was a core dump.
214 // An extra number (exit code, signal causing a stop)
215 // is in the high bits.
217 type WaitStatus uint32
228 func (w WaitStatus) Exited() bool { return w&mask == exited }
230 func (w WaitStatus) ExitStatus() int {
231 if w&mask != exited {
234 return int(w >> shift)
237 func (w WaitStatus) Signaled() bool { return w&mask != stopped && w&mask != 0 }
239 func (w WaitStatus) Signal() syscall.Signal {
240 sig := syscall.Signal(w & mask)
241 if sig == stopped || sig == 0 {
247 func (w WaitStatus) CoreDump() bool { return w.Signaled() && w&core != 0 }
249 func (w WaitStatus) Stopped() bool { return w&mask == stopped && syscall.Signal(w>>shift) != SIGSTOP }
251 func (w WaitStatus) Continued() bool { return w&mask == stopped && syscall.Signal(w>>shift) == SIGSTOP }
253 func (w WaitStatus) StopSignal() syscall.Signal {
257 return syscall.Signal(w>>shift) & 0xFF
260 func (w WaitStatus) TrapCause() int { return -1 }
262 //sys wait4(pid int32, statusp *_C_int, options int, rusage *Rusage) (wpid int32, err error)
264 func Wait4(pid int, wstatus *WaitStatus, options int, rusage *Rusage) (int, error) {
266 rpid, err := wait4(int32(pid), &status, options, rusage)
272 *wstatus = WaitStatus(status)
277 //sys gethostname(buf []byte) (n int, err error)
279 func Gethostname() (name string, err error) {
280 var buf [MaxHostNameLen]byte
281 n, err := gethostname(buf[:])
289 return string(buf[:n]), nil
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.__xnet_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.Accrightslen = int32(len(oob))
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.__xnet_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.Accrightslen = int32(len(oob))
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 uint, arg uintptr) (err error)
524 func IoctlSetInt(fd int, req uint, value int) (err error) {
525 return ioctl(fd, req, uintptr(value))
528 func IoctlSetWinsize(fd int, req uint, value *Winsize) (err error) {
529 return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
532 func IoctlSetTermios(fd int, req uint, value *Termios) (err error) {
533 return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
536 func IoctlSetTermio(fd int, req uint, value *Termio) (err error) {
537 return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
540 func IoctlGetInt(fd int, req uint) (int, error) {
542 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
546 func IoctlGetWinsize(fd int, req uint) (*Winsize, error) {
548 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
552 func IoctlGetTermios(fd int, req uint) (*Termios, error) {
554 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
558 func IoctlGetTermio(fd int, req uint) (*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 Flock(fd int, how int) (err error)
585 //sys Fpathconf(fd int, name int) (val int, err error)
586 //sys Fstat(fd int, stat *Stat_t) (err error)
587 //sys Fstatvfs(fd int, vfsstat *Statvfs_t) (err error)
588 //sys Getdents(fd int, buf []byte, basep *uintptr) (n int, err error)
589 //sysnb Getgid() (gid int)
590 //sysnb Getpid() (pid int)
591 //sysnb Getpgid(pid int) (pgid int, err error)
592 //sysnb Getpgrp() (pgid int, err error)
593 //sys Geteuid() (euid int)
594 //sys Getegid() (egid int)
595 //sys Getppid() (ppid int)
596 //sys Getpriority(which int, who int) (n int, err error)
597 //sysnb Getrlimit(which int, lim *Rlimit) (err error)
598 //sysnb Getrusage(who int, rusage *Rusage) (err error)
599 //sysnb Gettimeofday(tv *Timeval) (err error)
600 //sysnb Getuid() (uid int)
601 //sys Kill(pid int, signum syscall.Signal) (err error)
602 //sys Lchown(path string, uid int, gid int) (err error)
603 //sys Link(path string, link string) (err error)
604 //sys Listen(s int, backlog int) (err error) = libsocket.__xnet_llisten
605 //sys Lstat(path string, stat *Stat_t) (err error)
606 //sys Madvise(b []byte, advice int) (err error)
607 //sys Mkdir(path string, mode uint32) (err error)
608 //sys Mkdirat(dirfd int, path string, mode uint32) (err error)
609 //sys Mkfifo(path string, mode uint32) (err error)
610 //sys Mkfifoat(dirfd int, path string, mode uint32) (err error)
611 //sys Mknod(path string, mode uint32, dev int) (err error)
612 //sys Mknodat(dirfd int, path string, mode uint32, dev int) (err error)
613 //sys Mlock(b []byte) (err error)
614 //sys Mlockall(flags int) (err error)
615 //sys Mprotect(b []byte, prot int) (err error)
616 //sys Munlock(b []byte) (err error)
617 //sys Munlockall() (err error)
618 //sys Nanosleep(time *Timespec, leftover *Timespec) (err error)
619 //sys Open(path string, mode int, perm uint32) (fd int, err error)
620 //sys Openat(dirfd int, path string, flags int, mode uint32) (fd int, err error)
621 //sys Pathconf(path string, name int) (val int, err error)
622 //sys Pause() (err error)
623 //sys Pread(fd int, p []byte, offset int64) (n int, err error)
624 //sys Pwrite(fd int, p []byte, offset int64) (n int, err error)
625 //sys read(fd int, p []byte) (n int, err error)
626 //sys Readlink(path string, buf []byte) (n int, err error)
627 //sys Rename(from string, to string) (err error)
628 //sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error)
629 //sys Rmdir(path string) (err error)
630 //sys Seek(fd int, offset int64, whence int) (newoffset int64, err error) = lseek
631 //sysnb Setegid(egid int) (err error)
632 //sysnb Seteuid(euid int) (err error)
633 //sysnb Setgid(gid int) (err error)
634 //sys Sethostname(p []byte) (err error)
635 //sysnb Setpgid(pid int, pgid int) (err error)
636 //sys Setpriority(which int, who int, prio int) (err error)
637 //sysnb Setregid(rgid int, egid int) (err error)
638 //sysnb Setreuid(ruid int, euid int) (err error)
639 //sysnb Setrlimit(which int, lim *Rlimit) (err error)
640 //sysnb Setsid() (pid int, err error)
641 //sysnb Setuid(uid int) (err error)
642 //sys Shutdown(s int, how int) (err error) = libsocket.shutdown
643 //sys Stat(path string, stat *Stat_t) (err error)
644 //sys Statvfs(path string, vfsstat *Statvfs_t) (err error)
645 //sys Symlink(path string, link string) (err error)
646 //sys Sync() (err error)
647 //sysnb Times(tms *Tms) (ticks uintptr, err error)
648 //sys Truncate(path string, length int64) (err error)
649 //sys Fsync(fd int) (err error)
650 //sys Ftruncate(fd int, length int64) (err error)
651 //sys Umask(mask int) (oldmask int)
652 //sysnb Uname(buf *Utsname) (err error)
653 //sys Unmount(target string, flags int) (err error) = libc.umount
654 //sys Unlink(path string) (err error)
655 //sys Unlinkat(dirfd int, path string, flags int) (err error)
656 //sys Ustat(dev int, ubuf *Ustat_t) (err error)
657 //sys Utime(path string, buf *Utimbuf) (err error)
658 //sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) = libsocket.__xnet_bind
659 //sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) = libsocket.__xnet_connect
660 //sys mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error)
661 //sys munmap(addr uintptr, length uintptr) (err error)
662 //sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error) = libsocket.__xnet_sendto
663 //sys socket(domain int, typ int, proto int) (fd int, err error) = libsocket.__xnet_socket
664 //sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error) = libsocket.__xnet_socketpair
665 //sys write(fd int, p []byte) (n int, err error)
666 //sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error) = libsocket.__xnet_getsockopt
667 //sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) = libsocket.getpeername
668 //sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error) = libsocket.setsockopt
669 //sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error) = libsocket.recvfrom
671 func readlen(fd int, buf *byte, nbuf int) (n int, err error) {
672 r0, _, e1 := sysvicall6(uintptr(unsafe.Pointer(&procread)), 3, uintptr(fd), uintptr(unsafe.Pointer(buf)), uintptr(nbuf), 0, 0, 0)
680 func writelen(fd int, buf *byte, nbuf int) (n int, err error) {
681 r0, _, e1 := sysvicall6(uintptr(unsafe.Pointer(&procwrite)), 3, uintptr(fd), uintptr(unsafe.Pointer(buf)), uintptr(nbuf), 0, 0, 0)
689 var mapper = &mmapper{
690 active: make(map[*byte][]byte),
695 func Mmap(fd int, offset int64, length int, prot int, flags int) (data []byte, err error) {
696 return mapper.Mmap(fd, offset, length, prot, flags)
699 func Munmap(b []byte) (err error) {
700 return mapper.Munmap(b)
703 //sys sysconf(name int) (n int64, err error)
705 // pageSize caches the value of Getpagesize, since it can't change
706 // once the system is booted.
707 var pageSize int64 // accessed atomically
709 func Getpagesize() int {
710 n := atomic.LoadInt64(&pageSize)
712 n, _ = sysconf(_SC_PAGESIZE)
713 atomic.StoreInt64(&pageSize, n)