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 "syscall" 17 "unsafe" 18) 19 20type SockaddrDatalink struct { 21 Len uint8 22 Family uint8 23 Index uint16 24 Type uint8 25 Nlen uint8 26 Alen uint8 27 Slen uint8 28 Data [24]int8 29 raw RawSockaddrDatalink 30} 31 32func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno) 33 34func nametomib(name string) (mib []_C_int, err error) { 35 36 // Perform lookup via a binary search 37 left := 0 38 right := len(sysctlMib) - 1 39 for { 40 idx := left + (right-left)/2 41 switch { 42 case name == sysctlMib[idx].ctlname: 43 return sysctlMib[idx].ctloid, nil 44 case name > sysctlMib[idx].ctlname: 45 left = idx + 1 46 default: 47 right = idx - 1 48 } 49 if left > right { 50 break 51 } 52 } 53 return nil, EINVAL 54} 55 56// ParseDirent parses up to max directory entries in buf, 57// appending the names to names. It returns the number 58// bytes consumed from buf, the number of entries added 59// to names, and the new names slice. 60func ParseDirent(buf []byte, max int, names []string) (consumed int, count int, newnames []string) { 61 origlen := len(buf) 62 for max != 0 && len(buf) > 0 { 63 dirent := (*Dirent)(unsafe.Pointer(&buf[0])) 64 if dirent.Reclen == 0 { 65 buf = nil 66 break 67 } 68 buf = buf[dirent.Reclen:] 69 if dirent.Fileno == 0 { // File absent in directory. 70 continue 71 } 72 bytes := (*[10000]byte)(unsafe.Pointer(&dirent.Name[0])) 73 var name = string(bytes[0:dirent.Namlen]) 74 if name == "." || name == ".." { // Useless names 75 continue 76 } 77 max-- 78 count++ 79 names = append(names, name) 80 } 81 return origlen - len(buf), count, names 82} 83 84//sysnb pipe(p *[2]_C_int) (err error) 85func Pipe(p []int) (err error) { 86 if len(p) != 2 { 87 return EINVAL 88 } 89 var pp [2]_C_int 90 err = pipe(&pp) 91 p[0] = int(pp[0]) 92 p[1] = int(pp[1]) 93 return 94} 95 96//sys getdents(fd int, buf []byte) (n int, err error) 97func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) { 98 return getdents(fd, buf) 99} 100 101// TODO 102func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { 103 return -1, ENOSYS 104} 105 106func Getfsstat(buf []Statfs_t, flags int) (n int, err error) { 107 var _p0 unsafe.Pointer 108 var bufsize uintptr 109 if len(buf) > 0 { 110 _p0 = unsafe.Pointer(&buf[0]) 111 bufsize = unsafe.Sizeof(Statfs_t{}) * uintptr(len(buf)) 112 } 113 r0, _, e1 := Syscall(SYS_GETFSSTAT, uintptr(_p0), bufsize, uintptr(flags)) 114 use(unsafe.Pointer(_p0)) 115 n = int(r0) 116 if e1 != 0 { 117 err = e1 118 } 119 return 120} 121 122/* 123 * Exposed directly 124 */ 125//sys Access(path string, mode uint32) (err error) 126//sys Adjtime(delta *Timeval, olddelta *Timeval) (err error) 127//sys Chdir(path string) (err error) 128//sys Chflags(path string, flags int) (err error) 129//sys Chmod(path string, mode uint32) (err error) 130//sys Chown(path string, uid int, gid int) (err error) 131//sys Chroot(path string) (err error) 132//sys Close(fd int) (err error) 133//sys Dup(fd int) (nfd int, err error) 134//sys Dup2(from int, to int) (err error) 135//sys Exit(code int) 136//sys Fchdir(fd int) (err error) 137//sys Fchflags(fd int, flags int) (err error) 138//sys Fchmod(fd int, mode uint32) (err error) 139//sys Fchown(fd int, uid int, gid int) (err error) 140//sys Flock(fd int, how int) (err error) 141//sys Fpathconf(fd int, name int) (val int, err error) 142//sys Fstat(fd int, stat *Stat_t) (err error) 143//sys Fstatfs(fd int, stat *Statfs_t) (err error) 144//sys Fsync(fd int) (err error) 145//sys Ftruncate(fd int, length int64) (err error) 146//sysnb Getegid() (egid int) 147//sysnb Geteuid() (uid int) 148//sysnb Getgid() (gid int) 149//sysnb Getpgid(pid int) (pgid int, err error) 150//sysnb Getpgrp() (pgrp int) 151//sysnb Getpid() (pid int) 152//sysnb Getppid() (ppid int) 153//sys Getpriority(which int, who int) (prio int, err error) 154//sysnb Getrlimit(which int, lim *Rlimit) (err error) 155//sysnb Getrusage(who int, rusage *Rusage) (err error) 156//sysnb Getsid(pid int) (sid int, err error) 157//sysnb Gettimeofday(tv *Timeval) (err error) 158//sysnb Getuid() (uid int) 159//sys Issetugid() (tainted bool) 160//sys Kill(pid int, signum syscall.Signal) (err error) 161//sys Kqueue() (fd int, err error) 162//sys Lchown(path string, uid int, gid int) (err error) 163//sys Link(path string, link string) (err error) 164//sys Listen(s int, backlog int) (err error) 165//sys Lstat(path string, stat *Stat_t) (err error) 166//sys Mkdir(path string, mode uint32) (err error) 167//sys Mkfifo(path string, mode uint32) (err error) 168//sys Mknod(path string, mode uint32, dev int) (err error) 169//sys Mlock(b []byte) (err error) 170//sys Mlockall(flags int) (err error) 171//sys Mprotect(b []byte, prot int) (err error) 172//sys Munlock(b []byte) (err error) 173//sys Munlockall() (err error) 174//sys Nanosleep(time *Timespec, leftover *Timespec) (err error) 175//sys Open(path string, mode int, perm uint32) (fd int, err error) 176//sys Pathconf(path string, name int) (val int, err error) 177//sys Pread(fd int, p []byte, offset int64) (n int, err error) 178//sys Pwrite(fd int, p []byte, offset int64) (n int, err error) 179//sys read(fd int, p []byte) (n int, err error) 180//sys Readlink(path string, buf []byte) (n int, err error) 181//sys Rename(from string, to string) (err error) 182//sys Revoke(path string) (err error) 183//sys Rmdir(path string) (err error) 184//sys Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_LSEEK 185//sys Select(n int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (err error) 186//sysnb Setegid(egid int) (err error) 187//sysnb Seteuid(euid int) (err error) 188//sysnb Setgid(gid int) (err error) 189//sys Setlogin(name string) (err error) 190//sysnb Setpgid(pid int, pgid int) (err error) 191//sys Setpriority(which int, who int, prio int) (err error) 192//sysnb Setregid(rgid int, egid int) (err error) 193//sysnb Setreuid(ruid int, euid int) (err error) 194//sysnb Setresgid(rgid int, egid int, sgid int) (err error) 195//sysnb Setresuid(ruid int, euid int, suid int) (err error) 196//sysnb Setrlimit(which int, lim *Rlimit) (err error) 197//sysnb Setsid() (pid int, err error) 198//sysnb Settimeofday(tp *Timeval) (err error) 199//sysnb Setuid(uid int) (err error) 200//sys Stat(path string, stat *Stat_t) (err error) 201//sys Statfs(path string, stat *Statfs_t) (err error) 202//sys Symlink(path string, link string) (err error) 203//sys Sync() (err error) 204//sys Truncate(path string, length int64) (err error) 205//sys Umask(newmask int) (oldmask int) 206//sys Unlink(path string) (err error) 207//sys Unmount(path string, flags int) (err error) 208//sys write(fd int, p []byte) (n int, err error) 209//sys mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error) 210//sys munmap(addr uintptr, length uintptr) (err error) 211//sys readlen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_READ 212//sys writelen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_WRITE 213 214/* 215 * Unimplemented 216 */ 217// __getcwd 218// __semctl 219// __syscall 220// __sysctl 221// adjfreq 222// break 223// clock_getres 224// clock_gettime 225// clock_settime 226// closefrom 227// execve 228// faccessat 229// fchmodat 230// fchownat 231// fcntl 232// fhopen 233// fhstat 234// fhstatfs 235// fork 236// fstatat 237// futimens 238// getfh 239// getgid 240// getitimer 241// getlogin 242// getresgid 243// getresuid 244// getrtable 245// getthrid 246// ioctl 247// ktrace 248// lfs_bmapv 249// lfs_markv 250// lfs_segclean 251// lfs_segwait 252// linkat 253// mincore 254// minherit 255// mkdirat 256// mkfifoat 257// mknodat 258// mount 259// mquery 260// msgctl 261// msgget 262// msgrcv 263// msgsnd 264// nfssvc 265// nnpfspioctl 266// openat 267// poll 268// preadv 269// profil 270// pwritev 271// quotactl 272// readlinkat 273// readv 274// reboot 275// renameat 276// rfork 277// sched_yield 278// semget 279// semop 280// setgroups 281// setitimer 282// setrtable 283// setsockopt 284// shmat 285// shmctl 286// shmdt 287// shmget 288// sigaction 289// sigaltstack 290// sigpending 291// sigprocmask 292// sigreturn 293// sigsuspend 294// symlinkat 295// sysarch 296// syscall 297// threxit 298// thrsigdivert 299// thrsleep 300// thrwakeup 301// unlinkat 302// utimensat 303// vfork 304// writev 305