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