1// Copyright 2009,2010 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. 4 5// OpenBSD 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_bsd.go or syscall_unix.go. 12 13package unix 14 15import ( 16 "sort" 17 "syscall" 18 "unsafe" 19) 20 21// SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets. 22type SockaddrDatalink struct { 23 Len uint8 24 Family uint8 25 Index uint16 26 Type uint8 27 Nlen uint8 28 Alen uint8 29 Slen uint8 30 Data [24]int8 31 raw RawSockaddrDatalink 32} 33 34func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno) 35 36func nametomib(name string) (mib []_C_int, err error) { 37 i := sort.Search(len(sysctlMib), func(i int) bool { 38 return sysctlMib[i].ctlname >= name 39 }) 40 if i < len(sysctlMib) && sysctlMib[i].ctlname == name { 41 return sysctlMib[i].ctloid, nil 42 } 43 return nil, EINVAL 44} 45 46func SysctlClockinfo(name string) (*Clockinfo, error) { 47 mib, err := sysctlmib(name) 48 if err != nil { 49 return nil, err 50 } 51 52 n := uintptr(SizeofClockinfo) 53 var ci Clockinfo 54 if err := sysctl(mib, (*byte)(unsafe.Pointer(&ci)), &n, nil, 0); err != nil { 55 return nil, err 56 } 57 if n != SizeofClockinfo { 58 return nil, EIO 59 } 60 return &ci, nil 61} 62 63func SysctlUvmexp(name string) (*Uvmexp, error) { 64 mib, err := sysctlmib(name) 65 if err != nil { 66 return nil, err 67 } 68 69 n := uintptr(SizeofUvmexp) 70 var u Uvmexp 71 if err := sysctl(mib, (*byte)(unsafe.Pointer(&u)), &n, nil, 0); err != nil { 72 return nil, err 73 } 74 if n != SizeofUvmexp { 75 return nil, EIO 76 } 77 return &u, nil 78} 79 80//sysnb pipe(p *[2]_C_int) (err error) 81func Pipe(p []int) (err error) { 82 if len(p) != 2 { 83 return EINVAL 84 } 85 var pp [2]_C_int 86 err = pipe(&pp) 87 p[0] = int(pp[0]) 88 p[1] = int(pp[1]) 89 return 90} 91 92//sys getdents(fd int, buf []byte) (n int, err error) 93func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) { 94 return getdents(fd, buf) 95} 96 97const ImplementsGetwd = true 98 99//sys Getcwd(buf []byte) (n int, err error) = SYS___GETCWD 100 101func Getwd() (string, error) { 102 var buf [PathMax]byte 103 _, err := Getcwd(buf[0:]) 104 if err != nil { 105 return "", err 106 } 107 n := clen(buf[:]) 108 if n < 1 { 109 return "", EINVAL 110 } 111 return string(buf[:n]), nil 112} 113 114func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { 115 if raceenabled { 116 raceReleaseMerge(unsafe.Pointer(&ioSync)) 117 } 118 return sendfile(outfd, infd, offset, count) 119} 120 121// TODO 122func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { 123 return -1, ENOSYS 124} 125 126func Getfsstat(buf []Statfs_t, flags int) (n int, err error) { 127 var _p0 unsafe.Pointer 128 var bufsize uintptr 129 if len(buf) > 0 { 130 _p0 = unsafe.Pointer(&buf[0]) 131 bufsize = unsafe.Sizeof(Statfs_t{}) * uintptr(len(buf)) 132 } 133 r0, _, e1 := Syscall(SYS_GETFSSTAT, uintptr(_p0), bufsize, uintptr(flags)) 134 n = int(r0) 135 if e1 != 0 { 136 err = e1 137 } 138 return 139} 140 141func setattrlistTimes(path string, times []Timespec, flags int) error { 142 // used on Darwin for UtimesNano 143 return ENOSYS 144} 145 146//sys ioctl(fd int, req uint, arg uintptr) (err error) 147 148// ioctl itself should not be exposed directly, but additional get/set 149// functions for specific types are permissible. 150 151// IoctlSetInt performs an ioctl operation which sets an integer value 152// on fd, using the specified request number. 153func IoctlSetInt(fd int, req uint, value int) error { 154 return ioctl(fd, req, uintptr(value)) 155} 156 157func ioctlSetWinsize(fd int, req uint, value *Winsize) error { 158 return ioctl(fd, req, uintptr(unsafe.Pointer(value))) 159} 160 161func ioctlSetTermios(fd int, req uint, value *Termios) error { 162 return ioctl(fd, req, uintptr(unsafe.Pointer(value))) 163} 164 165// IoctlGetInt performs an ioctl operation which gets an integer value 166// from fd, using the specified request number. 167func IoctlGetInt(fd int, req uint) (int, error) { 168 var value int 169 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value))) 170 return value, err 171} 172 173func IoctlGetWinsize(fd int, req uint) (*Winsize, error) { 174 var value Winsize 175 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value))) 176 return &value, err 177} 178 179func IoctlGetTermios(fd int, req uint) (*Termios, error) { 180 var value Termios 181 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value))) 182 return &value, err 183} 184 185//sys ppoll(fds *PollFd, nfds int, timeout *Timespec, sigmask *Sigset_t) (n int, err error) 186 187func Ppoll(fds []PollFd, timeout *Timespec, sigmask *Sigset_t) (n int, err error) { 188 if len(fds) == 0 { 189 return ppoll(nil, 0, timeout, sigmask) 190 } 191 return ppoll(&fds[0], len(fds), timeout, sigmask) 192} 193 194func Uname(uname *Utsname) error { 195 mib := []_C_int{CTL_KERN, KERN_OSTYPE} 196 n := unsafe.Sizeof(uname.Sysname) 197 if err := sysctl(mib, &uname.Sysname[0], &n, nil, 0); err != nil { 198 return err 199 } 200 201 mib = []_C_int{CTL_KERN, KERN_HOSTNAME} 202 n = unsafe.Sizeof(uname.Nodename) 203 if err := sysctl(mib, &uname.Nodename[0], &n, nil, 0); err != nil { 204 return err 205 } 206 207 mib = []_C_int{CTL_KERN, KERN_OSRELEASE} 208 n = unsafe.Sizeof(uname.Release) 209 if err := sysctl(mib, &uname.Release[0], &n, nil, 0); err != nil { 210 return err 211 } 212 213 mib = []_C_int{CTL_KERN, KERN_VERSION} 214 n = unsafe.Sizeof(uname.Version) 215 if err := sysctl(mib, &uname.Version[0], &n, nil, 0); err != nil { 216 return err 217 } 218 219 // The version might have newlines or tabs in it, convert them to 220 // spaces. 221 for i, b := range uname.Version { 222 if b == '\n' || b == '\t' { 223 if i == len(uname.Version)-1 { 224 uname.Version[i] = 0 225 } else { 226 uname.Version[i] = ' ' 227 } 228 } 229 } 230 231 mib = []_C_int{CTL_HW, HW_MACHINE} 232 n = unsafe.Sizeof(uname.Machine) 233 if err := sysctl(mib, &uname.Machine[0], &n, nil, 0); err != nil { 234 return err 235 } 236 237 return nil 238} 239 240/* 241 * Exposed directly 242 */ 243//sys Access(path string, mode uint32) (err error) 244//sys Adjtime(delta *Timeval, olddelta *Timeval) (err error) 245//sys Chdir(path string) (err error) 246//sys Chflags(path string, flags int) (err error) 247//sys Chmod(path string, mode uint32) (err error) 248//sys Chown(path string, uid int, gid int) (err error) 249//sys Chroot(path string) (err error) 250//sys Close(fd int) (err error) 251//sys Dup(fd int) (nfd int, err error) 252//sys Dup2(from int, to int) (err error) 253//sys Exit(code int) 254//sys Faccessat(dirfd int, path string, mode uint32, flags int) (err error) 255//sys Fchdir(fd int) (err error) 256//sys Fchflags(fd int, flags int) (err error) 257//sys Fchmod(fd int, mode uint32) (err error) 258//sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) 259//sys Fchown(fd int, uid int, gid int) (err error) 260//sys Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error) 261//sys Flock(fd int, how int) (err error) 262//sys Fpathconf(fd int, name int) (val int, err error) 263//sys Fstat(fd int, stat *Stat_t) (err error) 264//sys Fstatat(fd int, path string, stat *Stat_t, flags int) (err error) 265//sys Fstatfs(fd int, stat *Statfs_t) (err error) 266//sys Fsync(fd int) (err error) 267//sys Ftruncate(fd int, length int64) (err error) 268//sysnb Getegid() (egid int) 269//sysnb Geteuid() (uid int) 270//sysnb Getgid() (gid int) 271//sysnb Getpgid(pid int) (pgid int, err error) 272//sysnb Getpgrp() (pgrp int) 273//sysnb Getpid() (pid int) 274//sysnb Getppid() (ppid int) 275//sys Getpriority(which int, who int) (prio int, err error) 276//sysnb Getrlimit(which int, lim *Rlimit) (err error) 277//sysnb Getrtable() (rtable int, err error) 278//sysnb Getrusage(who int, rusage *Rusage) (err error) 279//sysnb Getsid(pid int) (sid int, err error) 280//sysnb Gettimeofday(tv *Timeval) (err error) 281//sysnb Getuid() (uid int) 282//sys Issetugid() (tainted bool) 283//sys Kill(pid int, signum syscall.Signal) (err error) 284//sys Kqueue() (fd int, err error) 285//sys Lchown(path string, uid int, gid int) (err error) 286//sys Link(path string, link string) (err error) 287//sys Linkat(pathfd int, path string, linkfd int, link string, flags int) (err error) 288//sys Listen(s int, backlog int) (err error) 289//sys Lstat(path string, stat *Stat_t) (err error) 290//sys Mkdir(path string, mode uint32) (err error) 291//sys Mkdirat(dirfd int, path string, mode uint32) (err error) 292//sys Mkfifo(path string, mode uint32) (err error) 293//sys Mkfifoat(dirfd int, path string, mode uint32) (err error) 294//sys Mknod(path string, mode uint32, dev int) (err error) 295//sys Mknodat(dirfd int, path string, mode uint32, dev int) (err error) 296//sys Nanosleep(time *Timespec, leftover *Timespec) (err error) 297//sys Open(path string, mode int, perm uint32) (fd int, err error) 298//sys Openat(dirfd int, path string, mode int, perm uint32) (fd int, err error) 299//sys Pathconf(path string, name int) (val int, err error) 300//sys Pread(fd int, p []byte, offset int64) (n int, err error) 301//sys Pwrite(fd int, p []byte, offset int64) (n int, err error) 302//sys read(fd int, p []byte) (n int, err error) 303//sys Readlink(path string, buf []byte) (n int, err error) 304//sys Readlinkat(dirfd int, path string, buf []byte) (n int, err error) 305//sys Rename(from string, to string) (err error) 306//sys Renameat(fromfd int, from string, tofd int, to string) (err error) 307//sys Revoke(path string) (err error) 308//sys Rmdir(path string) (err error) 309//sys Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_LSEEK 310//sys Select(n int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (err error) 311//sysnb Setegid(egid int) (err error) 312//sysnb Seteuid(euid int) (err error) 313//sysnb Setgid(gid int) (err error) 314//sys Setlogin(name string) (err error) 315//sysnb Setpgid(pid int, pgid int) (err error) 316//sys Setpriority(which int, who int, prio int) (err error) 317//sysnb Setregid(rgid int, egid int) (err error) 318//sysnb Setreuid(ruid int, euid int) (err error) 319//sysnb Setresgid(rgid int, egid int, sgid int) (err error) 320//sysnb Setresuid(ruid int, euid int, suid int) (err error) 321//sysnb Setrlimit(which int, lim *Rlimit) (err error) 322//sysnb Setrtable(rtable int) (err error) 323//sysnb Setsid() (pid int, err error) 324//sysnb Settimeofday(tp *Timeval) (err error) 325//sysnb Setuid(uid int) (err error) 326//sys Stat(path string, stat *Stat_t) (err error) 327//sys Statfs(path string, stat *Statfs_t) (err error) 328//sys Symlink(path string, link string) (err error) 329//sys Symlinkat(oldpath string, newdirfd int, newpath string) (err error) 330//sys Sync() (err error) 331//sys Truncate(path string, length int64) (err error) 332//sys Umask(newmask int) (oldmask int) 333//sys Unlink(path string) (err error) 334//sys Unlinkat(dirfd int, path string, flags int) (err error) 335//sys Unmount(path string, flags int) (err error) 336//sys write(fd int, p []byte) (n int, err error) 337//sys mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error) 338//sys munmap(addr uintptr, length uintptr) (err error) 339//sys readlen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_READ 340//sys writelen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_WRITE 341//sys utimensat(dirfd int, path string, times *[2]Timespec, flags int) (err error) 342 343/* 344 * Unimplemented 345 */ 346// __getcwd 347// __semctl 348// __syscall 349// __sysctl 350// adjfreq 351// break 352// clock_getres 353// clock_gettime 354// clock_settime 355// closefrom 356// execve 357// fcntl 358// fhopen 359// fhstat 360// fhstatfs 361// fork 362// futimens 363// getfh 364// getgid 365// getitimer 366// getlogin 367// getresgid 368// getresuid 369// getthrid 370// ktrace 371// lfs_bmapv 372// lfs_markv 373// lfs_segclean 374// lfs_segwait 375// mincore 376// minherit 377// mount 378// mquery 379// msgctl 380// msgget 381// msgrcv 382// msgsnd 383// nfssvc 384// nnpfspioctl 385// preadv 386// profil 387// pwritev 388// quotactl 389// readv 390// reboot 391// renameat 392// rfork 393// sched_yield 394// semget 395// semop 396// setgroups 397// setitimer 398// setsockopt 399// shmat 400// shmctl 401// shmdt 402// shmget 403// sigaction 404// sigaltstack 405// sigpending 406// sigprocmask 407// sigreturn 408// sigsuspend 409// sysarch 410// syscall 411// threxit 412// thrsigdivert 413// thrsleep 414// thrwakeup 415// vfork 416// writev 417