syscall_openbsd.go (11231B)
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 13 package unix 14 15 import ( 16 "sort" 17 "syscall" 18 "unsafe" 19 ) 20 21 // SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets. 22 type 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 34 func anyToSockaddrGOOS(fd int, rsa *RawSockaddrAny) (Sockaddr, error) { 35 return nil, EAFNOSUPPORT 36 } 37 38 func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno) 39 40 func nametomib(name string) (mib []_C_int, err error) { 41 i := sort.Search(len(sysctlMib), func(i int) bool { 42 return sysctlMib[i].ctlname >= name 43 }) 44 if i < len(sysctlMib) && sysctlMib[i].ctlname == name { 45 return sysctlMib[i].ctloid, nil 46 } 47 return nil, EINVAL 48 } 49 50 func direntIno(buf []byte) (uint64, bool) { 51 return readInt(buf, unsafe.Offsetof(Dirent{}.Fileno), unsafe.Sizeof(Dirent{}.Fileno)) 52 } 53 54 func direntReclen(buf []byte) (uint64, bool) { 55 return readInt(buf, unsafe.Offsetof(Dirent{}.Reclen), unsafe.Sizeof(Dirent{}.Reclen)) 56 } 57 58 func direntNamlen(buf []byte) (uint64, bool) { 59 return readInt(buf, unsafe.Offsetof(Dirent{}.Namlen), unsafe.Sizeof(Dirent{}.Namlen)) 60 } 61 62 func SysctlUvmexp(name string) (*Uvmexp, error) { 63 mib, err := sysctlmib(name) 64 if err != nil { 65 return nil, err 66 } 67 68 n := uintptr(SizeofUvmexp) 69 var u Uvmexp 70 if err := sysctl(mib, (*byte)(unsafe.Pointer(&u)), &n, nil, 0); err != nil { 71 return nil, err 72 } 73 if n != SizeofUvmexp { 74 return nil, EIO 75 } 76 return &u, nil 77 } 78 79 func Pipe(p []int) (err error) { 80 return Pipe2(p, 0) 81 } 82 83 //sysnb pipe2(p *[2]_C_int, flags int) (err error) 84 func Pipe2(p []int, flags int) error { 85 if len(p) != 2 { 86 return EINVAL 87 } 88 var pp [2]_C_int 89 err := pipe2(&pp, flags) 90 if err == nil { 91 p[0] = int(pp[0]) 92 p[1] = int(pp[1]) 93 } 94 return err 95 } 96 97 //sys Getdents(fd int, buf []byte) (n int, err error) 98 func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) { 99 n, err = Getdents(fd, buf) 100 if err != nil || basep == nil { 101 return 102 } 103 104 var off int64 105 off, err = Seek(fd, 0, 1 /* SEEK_CUR */) 106 if err != nil { 107 *basep = ^uintptr(0) 108 return 109 } 110 *basep = uintptr(off) 111 if unsafe.Sizeof(*basep) == 8 { 112 return 113 } 114 if off>>32 != 0 { 115 // We can't stuff the offset back into a uintptr, so any 116 // future calls would be suspect. Generate an error. 117 // EIO was allowed by getdirentries. 118 err = EIO 119 } 120 return 121 } 122 123 //sys Getcwd(buf []byte) (n int, err error) = SYS___GETCWD 124 125 func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { 126 if raceenabled { 127 raceReleaseMerge(unsafe.Pointer(&ioSync)) 128 } 129 return sendfile(outfd, infd, offset, count) 130 } 131 132 // TODO 133 func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { 134 return -1, ENOSYS 135 } 136 137 func Getfsstat(buf []Statfs_t, flags int) (n int, err error) { 138 var _p0 unsafe.Pointer 139 var bufsize uintptr 140 if len(buf) > 0 { 141 _p0 = unsafe.Pointer(&buf[0]) 142 bufsize = unsafe.Sizeof(Statfs_t{}) * uintptr(len(buf)) 143 } 144 r0, _, e1 := Syscall(SYS_GETFSSTAT, uintptr(_p0), bufsize, uintptr(flags)) 145 n = int(r0) 146 if e1 != 0 { 147 err = e1 148 } 149 return 150 } 151 152 //sys ioctl(fd int, req uint, arg uintptr) (err error) 153 154 //sys sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL 155 156 //sys ppoll(fds *PollFd, nfds int, timeout *Timespec, sigmask *Sigset_t) (n int, err error) 157 158 func Ppoll(fds []PollFd, timeout *Timespec, sigmask *Sigset_t) (n int, err error) { 159 if len(fds) == 0 { 160 return ppoll(nil, 0, timeout, sigmask) 161 } 162 return ppoll(&fds[0], len(fds), timeout, sigmask) 163 } 164 165 func Uname(uname *Utsname) error { 166 mib := []_C_int{CTL_KERN, KERN_OSTYPE} 167 n := unsafe.Sizeof(uname.Sysname) 168 if err := sysctl(mib, &uname.Sysname[0], &n, nil, 0); err != nil { 169 return err 170 } 171 172 mib = []_C_int{CTL_KERN, KERN_HOSTNAME} 173 n = unsafe.Sizeof(uname.Nodename) 174 if err := sysctl(mib, &uname.Nodename[0], &n, nil, 0); err != nil { 175 return err 176 } 177 178 mib = []_C_int{CTL_KERN, KERN_OSRELEASE} 179 n = unsafe.Sizeof(uname.Release) 180 if err := sysctl(mib, &uname.Release[0], &n, nil, 0); err != nil { 181 return err 182 } 183 184 mib = []_C_int{CTL_KERN, KERN_VERSION} 185 n = unsafe.Sizeof(uname.Version) 186 if err := sysctl(mib, &uname.Version[0], &n, nil, 0); err != nil { 187 return err 188 } 189 190 // The version might have newlines or tabs in it, convert them to 191 // spaces. 192 for i, b := range uname.Version { 193 if b == '\n' || b == '\t' { 194 if i == len(uname.Version)-1 { 195 uname.Version[i] = 0 196 } else { 197 uname.Version[i] = ' ' 198 } 199 } 200 } 201 202 mib = []_C_int{CTL_HW, HW_MACHINE} 203 n = unsafe.Sizeof(uname.Machine) 204 if err := sysctl(mib, &uname.Machine[0], &n, nil, 0); err != nil { 205 return err 206 } 207 208 return nil 209 } 210 211 /* 212 * Exposed directly 213 */ 214 //sys Access(path string, mode uint32) (err error) 215 //sys Adjtime(delta *Timeval, olddelta *Timeval) (err error) 216 //sys Chdir(path string) (err error) 217 //sys Chflags(path string, flags int) (err error) 218 //sys Chmod(path string, mode uint32) (err error) 219 //sys Chown(path string, uid int, gid int) (err error) 220 //sys Chroot(path string) (err error) 221 //sys Close(fd int) (err error) 222 //sys Dup(fd int) (nfd int, err error) 223 //sys Dup2(from int, to int) (err error) 224 //sys Dup3(from int, to int, flags int) (err error) 225 //sys Exit(code int) 226 //sys Faccessat(dirfd int, path string, mode uint32, flags int) (err error) 227 //sys Fchdir(fd int) (err error) 228 //sys Fchflags(fd int, flags int) (err error) 229 //sys Fchmod(fd int, mode uint32) (err error) 230 //sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) 231 //sys Fchown(fd int, uid int, gid int) (err error) 232 //sys Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error) 233 //sys Flock(fd int, how int) (err error) 234 //sys Fpathconf(fd int, name int) (val int, err error) 235 //sys Fstat(fd int, stat *Stat_t) (err error) 236 //sys Fstatat(fd int, path string, stat *Stat_t, flags int) (err error) 237 //sys Fstatfs(fd int, stat *Statfs_t) (err error) 238 //sys Fsync(fd int) (err error) 239 //sys Ftruncate(fd int, length int64) (err error) 240 //sysnb Getegid() (egid int) 241 //sysnb Geteuid() (uid int) 242 //sysnb Getgid() (gid int) 243 //sysnb Getpgid(pid int) (pgid int, err error) 244 //sysnb Getpgrp() (pgrp int) 245 //sysnb Getpid() (pid int) 246 //sysnb Getppid() (ppid int) 247 //sys Getpriority(which int, who int) (prio int, err error) 248 //sysnb Getrlimit(which int, lim *Rlimit) (err error) 249 //sysnb Getrtable() (rtable int, err error) 250 //sysnb Getrusage(who int, rusage *Rusage) (err error) 251 //sysnb Getsid(pid int) (sid int, err error) 252 //sysnb Gettimeofday(tv *Timeval) (err error) 253 //sysnb Getuid() (uid int) 254 //sys Issetugid() (tainted bool) 255 //sys Kill(pid int, signum syscall.Signal) (err error) 256 //sys Kqueue() (fd int, err error) 257 //sys Lchown(path string, uid int, gid int) (err error) 258 //sys Link(path string, link string) (err error) 259 //sys Linkat(pathfd int, path string, linkfd int, link string, flags int) (err error) 260 //sys Listen(s int, backlog int) (err error) 261 //sys Lstat(path string, stat *Stat_t) (err error) 262 //sys Mkdir(path string, mode uint32) (err error) 263 //sys Mkdirat(dirfd int, path string, mode uint32) (err error) 264 //sys Mkfifo(path string, mode uint32) (err error) 265 //sys Mkfifoat(dirfd int, path string, mode uint32) (err error) 266 //sys Mknod(path string, mode uint32, dev int) (err error) 267 //sys Mknodat(dirfd int, path string, mode uint32, dev int) (err error) 268 //sys Nanosleep(time *Timespec, leftover *Timespec) (err error) 269 //sys Open(path string, mode int, perm uint32) (fd int, err error) 270 //sys Openat(dirfd int, path string, mode int, perm uint32) (fd int, err error) 271 //sys Pathconf(path string, name int) (val int, err error) 272 //sys pread(fd int, p []byte, offset int64) (n int, err error) 273 //sys pwrite(fd int, p []byte, offset int64) (n int, err error) 274 //sys read(fd int, p []byte) (n int, err error) 275 //sys Readlink(path string, buf []byte) (n int, err error) 276 //sys Readlinkat(dirfd int, path string, buf []byte) (n int, err error) 277 //sys Rename(from string, to string) (err error) 278 //sys Renameat(fromfd int, from string, tofd int, to string) (err error) 279 //sys Revoke(path string) (err error) 280 //sys Rmdir(path string) (err error) 281 //sys Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_LSEEK 282 //sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) 283 //sysnb Setegid(egid int) (err error) 284 //sysnb Seteuid(euid int) (err error) 285 //sysnb Setgid(gid int) (err error) 286 //sys Setlogin(name string) (err error) 287 //sysnb Setpgid(pid int, pgid int) (err error) 288 //sys Setpriority(which int, who int, prio int) (err error) 289 //sysnb Setregid(rgid int, egid int) (err error) 290 //sysnb Setreuid(ruid int, euid int) (err error) 291 //sysnb Setresgid(rgid int, egid int, sgid int) (err error) 292 //sysnb Setresuid(ruid int, euid int, suid int) (err error) 293 //sysnb Setrlimit(which int, lim *Rlimit) (err error) 294 //sysnb Setrtable(rtable int) (err error) 295 //sysnb Setsid() (pid int, err error) 296 //sysnb Settimeofday(tp *Timeval) (err error) 297 //sysnb Setuid(uid int) (err error) 298 //sys Stat(path string, stat *Stat_t) (err error) 299 //sys Statfs(path string, stat *Statfs_t) (err error) 300 //sys Symlink(path string, link string) (err error) 301 //sys Symlinkat(oldpath string, newdirfd int, newpath string) (err error) 302 //sys Sync() (err error) 303 //sys Truncate(path string, length int64) (err error) 304 //sys Umask(newmask int) (oldmask int) 305 //sys Unlink(path string) (err error) 306 //sys Unlinkat(dirfd int, path string, flags int) (err error) 307 //sys Unmount(path string, flags int) (err error) 308 //sys write(fd int, p []byte) (n int, err error) 309 //sys mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error) 310 //sys munmap(addr uintptr, length uintptr) (err error) 311 //sys readlen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_READ 312 //sys writelen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_WRITE 313 //sys utimensat(dirfd int, path string, times *[2]Timespec, flags int) (err error) 314 315 /* 316 * Unimplemented 317 */ 318 // __getcwd 319 // __semctl 320 // __syscall 321 // __sysctl 322 // adjfreq 323 // break 324 // clock_getres 325 // clock_gettime 326 // clock_settime 327 // closefrom 328 // execve 329 // fhopen 330 // fhstat 331 // fhstatfs 332 // fork 333 // futimens 334 // getfh 335 // getgid 336 // getitimer 337 // getlogin 338 // getresgid 339 // getresuid 340 // getthrid 341 // ktrace 342 // lfs_bmapv 343 // lfs_markv 344 // lfs_segclean 345 // lfs_segwait 346 // mincore 347 // minherit 348 // mount 349 // mquery 350 // msgctl 351 // msgget 352 // msgrcv 353 // msgsnd 354 // nfssvc 355 // nnpfspioctl 356 // preadv 357 // profil 358 // pwritev 359 // quotactl 360 // readv 361 // reboot 362 // renameat 363 // rfork 364 // sched_yield 365 // semget 366 // semop 367 // setgroups 368 // setitimer 369 // setsockopt 370 // shmat 371 // shmctl 372 // shmdt 373 // shmget 374 // sigaction 375 // sigaltstack 376 // sigpending 377 // sigprocmask 378 // sigreturn 379 // sigsuspend 380 // sysarch 381 // syscall 382 // threxit 383 // thrsigdivert 384 // thrsleep 385 // thrwakeup 386 // vfork 387 // writev