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