413 lines
10 KiB
Go
413 lines
10 KiB
Go
// Copyright 2009,2010 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
// FreeBSD system calls.
|
|
// This file is compiled as ordinary Go code,
|
|
// but it is also input to mksyscall,
|
|
// which parses the //sys lines and generates system call stubs.
|
|
// Note that sometimes we use a lowercase //sys name and wrap
|
|
// it in our own nicer implementation, either here or in
|
|
// syscall_bsd.go or syscall_unix.go.
|
|
|
|
package unix
|
|
|
|
import "unsafe"
|
|
|
|
type SockaddrDatalink struct {
|
|
Len uint8
|
|
Family uint8
|
|
Index uint16
|
|
Type uint8
|
|
Nlen uint8
|
|
Alen uint8
|
|
Slen uint8
|
|
Data [12]int8
|
|
Rcf uint16
|
|
Route [16]uint16
|
|
raw RawSockaddrDatalink
|
|
}
|
|
|
|
// Translate "kern.hostname" to []_C_int{0,1,2,3}.
|
|
func nametomib(name string) (mib []_C_int, err error) {
|
|
const siz = unsafe.Sizeof(mib[0])
|
|
|
|
// NOTE(rsc): It seems strange to set the buffer to have
|
|
// size CTL_MAXNAME+2 but use only CTL_MAXNAME
|
|
// as the size. I don't know why the +2 is here, but the
|
|
// kernel uses +2 for its own implementation of this function.
|
|
// I am scared that if we don't include the +2 here, the kernel
|
|
// will silently write 2 words farther than we specify
|
|
// and we'll get memory corruption.
|
|
var buf [CTL_MAXNAME + 2]_C_int
|
|
n := uintptr(CTL_MAXNAME) * siz
|
|
|
|
p := (*byte)(unsafe.Pointer(&buf[0]))
|
|
bytes, err := ByteSliceFromString(name)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Magic sysctl: "setting" 0.3 to a string name
|
|
// lets you read back the array of integers form.
|
|
if err = sysctl([]_C_int{0, 3}, p, &n, &bytes[0], uintptr(len(name))); err != nil {
|
|
return nil, err
|
|
}
|
|
return buf[0 : n/siz], nil
|
|
}
|
|
|
|
// ParseDirent parses up to max directory entries in buf,
|
|
// appending the names to names. It returns the number
|
|
// bytes consumed from buf, the number of entries added
|
|
// to names, and the new names slice.
|
|
func ParseDirent(buf []byte, max int, names []string) (consumed int, count int, newnames []string) {
|
|
origlen := len(buf)
|
|
for max != 0 && len(buf) > 0 {
|
|
dirent := (*Dirent)(unsafe.Pointer(&buf[0]))
|
|
reclen := int(16+dirent.Namlen+1+7) & ^7
|
|
buf = buf[reclen:]
|
|
if dirent.Fileno == 0 { // File absent in directory.
|
|
continue
|
|
}
|
|
bytes := (*[10000]byte)(unsafe.Pointer(&dirent.Name[0]))
|
|
var name = string(bytes[0:dirent.Namlen])
|
|
if name == "." || name == ".." { // Useless names
|
|
continue
|
|
}
|
|
max--
|
|
count++
|
|
names = append(names, name)
|
|
}
|
|
return origlen - len(buf), count, names
|
|
}
|
|
|
|
//sysnb pipe() (r int, w int, err error)
|
|
|
|
func Pipe(p []int) (err error) {
|
|
if len(p) != 2 {
|
|
return EINVAL
|
|
}
|
|
p[0], p[1], err = pipe()
|
|
return
|
|
}
|
|
|
|
//sys extpread(fd int, p []byte, flags int, offset int64) (n int, err error)
|
|
func Pread(fd int, p []byte, offset int64) (n int, err error) {
|
|
return extpread(fd, p, 0, offset)
|
|
}
|
|
|
|
//sys extpwrite(fd int, p []byte, flags int, offset int64) (n int, err error)
|
|
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
|
|
return extpwrite(fd, p, 0, offset)
|
|
}
|
|
|
|
func Getfsstat(buf []Statfs_t, flags int) (n int, err error) {
|
|
var _p0 unsafe.Pointer
|
|
var bufsize uintptr
|
|
if len(buf) > 0 {
|
|
_p0 = unsafe.Pointer(&buf[0])
|
|
bufsize = unsafe.Sizeof(Statfs_t{}) * uintptr(len(buf))
|
|
}
|
|
r0, _, e1 := Syscall(SYS_GETFSSTAT, uintptr(_p0), bufsize, uintptr(flags))
|
|
use(unsafe.Pointer(_p0))
|
|
n = int(r0)
|
|
if e1 != 0 {
|
|
err = e1
|
|
}
|
|
return
|
|
}
|
|
|
|
/*
|
|
* Exposed directly
|
|
*/
|
|
//sys Access(path string, mode uint32) (err error)
|
|
//sys Adjtime(delta *Timeval, olddelta *Timeval) (err error)
|
|
//sys Chdir(path string) (err error)
|
|
//sys Chflags(path string, flags int) (err error)
|
|
//sys Chmod(path string, mode uint32) (err error)
|
|
//sys Chown(path string, uid int, gid int) (err error)
|
|
//sys Chroot(path string) (err error)
|
|
//sys Close(fd int) (err error)
|
|
//sys Dup(fd int) (nfd int, err error)
|
|
//sys Dup2(from int, to int) (err error)
|
|
//sys Exit(code int)
|
|
//sys Fchdir(fd int) (err error)
|
|
//sys Fchflags(fd int, flags int) (err error)
|
|
//sys Fchmod(fd int, mode uint32) (err error)
|
|
//sys Fchown(fd int, uid int, gid int) (err error)
|
|
//sys Flock(fd int, how int) (err error)
|
|
//sys Fpathconf(fd int, name int) (val int, err error)
|
|
//sys Fstat(fd int, stat *Stat_t) (err error)
|
|
//sys Fstatfs(fd int, stat *Statfs_t) (err error)
|
|
//sys Fsync(fd int) (err error)
|
|
//sys Ftruncate(fd int, length int64) (err error)
|
|
//sys Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error)
|
|
//sys Getdtablesize() (size int)
|
|
//sysnb Getegid() (egid int)
|
|
//sysnb Geteuid() (uid int)
|
|
//sysnb Getgid() (gid int)
|
|
//sysnb Getpgid(pid int) (pgid int, err error)
|
|
//sysnb Getpgrp() (pgrp int)
|
|
//sysnb Getpid() (pid int)
|
|
//sysnb Getppid() (ppid int)
|
|
//sys Getpriority(which int, who int) (prio int, err error)
|
|
//sysnb Getrlimit(which int, lim *Rlimit) (err error)
|
|
//sysnb Getrusage(who int, rusage *Rusage) (err error)
|
|
//sysnb Getsid(pid int) (sid int, err error)
|
|
//sysnb Gettimeofday(tv *Timeval) (err error)
|
|
//sysnb Getuid() (uid int)
|
|
//sys Issetugid() (tainted bool)
|
|
//sys Kill(pid int, signum syscall.Signal) (err error)
|
|
//sys Kqueue() (fd int, err error)
|
|
//sys Lchown(path string, uid int, gid int) (err error)
|
|
//sys Link(path string, link string) (err error)
|
|
//sys Listen(s int, backlog int) (err error)
|
|
//sys Lstat(path string, stat *Stat_t) (err error)
|
|
//sys Mkdir(path string, mode uint32) (err error)
|
|
//sys Mkfifo(path string, mode uint32) (err error)
|
|
//sys Mknod(path string, mode uint32, dev int) (err error)
|
|
//sys Mlock(b []byte) (err error)
|
|
//sys Mlockall(flags int) (err error)
|
|
//sys Mprotect(b []byte, prot int) (err error)
|
|
//sys Munlock(b []byte) (err error)
|
|
//sys Munlockall() (err error)
|
|
//sys Nanosleep(time *Timespec, leftover *Timespec) (err error)
|
|
//sys Open(path string, mode int, perm uint32) (fd int, err error)
|
|
//sys Pathconf(path string, name int) (val int, err error)
|
|
//sys read(fd int, p []byte) (n int, err error)
|
|
//sys Readlink(path string, buf []byte) (n int, err error)
|
|
//sys Rename(from string, to string) (err error)
|
|
//sys Revoke(path string) (err error)
|
|
//sys Rmdir(path string) (err error)
|
|
//sys Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_LSEEK
|
|
//sys Select(n int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (err error)
|
|
//sysnb Setegid(egid int) (err error)
|
|
//sysnb Seteuid(euid int) (err error)
|
|
//sysnb Setgid(gid int) (err error)
|
|
//sys Setlogin(name string) (err error)
|
|
//sysnb Setpgid(pid int, pgid int) (err error)
|
|
//sys Setpriority(which int, who int, prio int) (err error)
|
|
//sysnb Setregid(rgid int, egid int) (err error)
|
|
//sysnb Setreuid(ruid int, euid int) (err error)
|
|
//sysnb Setresgid(rgid int, egid int, sgid int) (err error)
|
|
//sysnb Setresuid(ruid int, euid int, suid int) (err error)
|
|
//sysnb Setrlimit(which int, lim *Rlimit) (err error)
|
|
//sysnb Setsid() (pid int, err error)
|
|
//sysnb Settimeofday(tp *Timeval) (err error)
|
|
//sysnb Setuid(uid int) (err error)
|
|
//sys Stat(path string, stat *Stat_t) (err error)
|
|
//sys Statfs(path string, stat *Statfs_t) (err error)
|
|
//sys Symlink(path string, link string) (err error)
|
|
//sys Sync() (err error)
|
|
//sys Truncate(path string, length int64) (err error)
|
|
//sys Umask(newmask int) (oldmask int)
|
|
//sys Undelete(path string) (err error)
|
|
//sys Unlink(path string) (err error)
|
|
//sys Unmount(path string, flags int) (err error)
|
|
//sys write(fd int, p []byte) (n int, err error)
|
|
//sys mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error)
|
|
//sys munmap(addr uintptr, length uintptr) (err error)
|
|
//sys readlen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_READ
|
|
//sys writelen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_WRITE
|
|
|
|
/*
|
|
* Unimplemented
|
|
* TODO(jsing): Update this list for DragonFly.
|
|
*/
|
|
// Profil
|
|
// Sigaction
|
|
// Sigprocmask
|
|
// Getlogin
|
|
// Sigpending
|
|
// Sigaltstack
|
|
// Ioctl
|
|
// Reboot
|
|
// Execve
|
|
// Vfork
|
|
// Sbrk
|
|
// Sstk
|
|
// Ovadvise
|
|
// Mincore
|
|
// Setitimer
|
|
// Swapon
|
|
// Select
|
|
// Sigsuspend
|
|
// Readv
|
|
// Writev
|
|
// Nfssvc
|
|
// Getfh
|
|
// Quotactl
|
|
// Mount
|
|
// Csops
|
|
// Waitid
|
|
// Add_profil
|
|
// Kdebug_trace
|
|
// Sigreturn
|
|
// Mmap
|
|
// Atsocket
|
|
// Kqueue_from_portset_np
|
|
// Kqueue_portset
|
|
// Getattrlist
|
|
// Setattrlist
|
|
// Getdirentriesattr
|
|
// Searchfs
|
|
// Delete
|
|
// Copyfile
|
|
// Poll
|
|
// Watchevent
|
|
// Waitevent
|
|
// Modwatch
|
|
// Getxattr
|
|
// Fgetxattr
|
|
// Setxattr
|
|
// Fsetxattr
|
|
// Removexattr
|
|
// Fremovexattr
|
|
// Listxattr
|
|
// Flistxattr
|
|
// Fsctl
|
|
// Initgroups
|
|
// Posix_spawn
|
|
// Nfsclnt
|
|
// Fhopen
|
|
// Minherit
|
|
// Semsys
|
|
// Msgsys
|
|
// Shmsys
|
|
// Semctl
|
|
// Semget
|
|
// Semop
|
|
// Msgctl
|
|
// Msgget
|
|
// Msgsnd
|
|
// Msgrcv
|
|
// Shmat
|
|
// Shmctl
|
|
// Shmdt
|
|
// Shmget
|
|
// Shm_open
|
|
// Shm_unlink
|
|
// Sem_open
|
|
// Sem_close
|
|
// Sem_unlink
|
|
// Sem_wait
|
|
// Sem_trywait
|
|
// Sem_post
|
|
// Sem_getvalue
|
|
// Sem_init
|
|
// Sem_destroy
|
|
// Open_extended
|
|
// Umask_extended
|
|
// Stat_extended
|
|
// Lstat_extended
|
|
// Fstat_extended
|
|
// Chmod_extended
|
|
// Fchmod_extended
|
|
// Access_extended
|
|
// Settid
|
|
// Gettid
|
|
// Setsgroups
|
|
// Getsgroups
|
|
// Setwgroups
|
|
// Getwgroups
|
|
// Mkfifo_extended
|
|
// Mkdir_extended
|
|
// Identitysvc
|
|
// Shared_region_check_np
|
|
// Shared_region_map_np
|
|
// __pthread_mutex_destroy
|
|
// __pthread_mutex_init
|
|
// __pthread_mutex_lock
|
|
// __pthread_mutex_trylock
|
|
// __pthread_mutex_unlock
|
|
// __pthread_cond_init
|
|
// __pthread_cond_destroy
|
|
// __pthread_cond_broadcast
|
|
// __pthread_cond_signal
|
|
// Setsid_with_pid
|
|
// __pthread_cond_timedwait
|
|
// Aio_fsync
|
|
// Aio_return
|
|
// Aio_suspend
|
|
// Aio_cancel
|
|
// Aio_error
|
|
// Aio_read
|
|
// Aio_write
|
|
// Lio_listio
|
|
// __pthread_cond_wait
|
|
// Iopolicysys
|
|
// __pthread_kill
|
|
// __pthread_sigmask
|
|
// __sigwait
|
|
// __disable_threadsignal
|
|
// __pthread_markcancel
|
|
// __pthread_canceled
|
|
// __semwait_signal
|
|
// Proc_info
|
|
// Stat64_extended
|
|
// Lstat64_extended
|
|
// Fstat64_extended
|
|
// __pthread_chdir
|
|
// __pthread_fchdir
|
|
// Audit
|
|
// Auditon
|
|
// Getauid
|
|
// Setauid
|
|
// Getaudit
|
|
// Setaudit
|
|
// Getaudit_addr
|
|
// Setaudit_addr
|
|
// Auditctl
|
|
// Bsdthread_create
|
|
// Bsdthread_terminate
|
|
// Stack_snapshot
|
|
// Bsdthread_register
|
|
// Workq_open
|
|
// Workq_ops
|
|
// __mac_execve
|
|
// __mac_syscall
|
|
// __mac_get_file
|
|
// __mac_set_file
|
|
// __mac_get_link
|
|
// __mac_set_link
|
|
// __mac_get_proc
|
|
// __mac_set_proc
|
|
// __mac_get_fd
|
|
// __mac_set_fd
|
|
// __mac_get_pid
|
|
// __mac_get_lcid
|
|
// __mac_get_lctx
|
|
// __mac_set_lctx
|
|
// Setlcid
|
|
// Read_nocancel
|
|
// Write_nocancel
|
|
// Open_nocancel
|
|
// Close_nocancel
|
|
// Wait4_nocancel
|
|
// Recvmsg_nocancel
|
|
// Sendmsg_nocancel
|
|
// Recvfrom_nocancel
|
|
// Accept_nocancel
|
|
// Msync_nocancel
|
|
// Fcntl_nocancel
|
|
// Select_nocancel
|
|
// Fsync_nocancel
|
|
// Connect_nocancel
|
|
// Sigsuspend_nocancel
|
|
// Readv_nocancel
|
|
// Writev_nocancel
|
|
// Sendto_nocancel
|
|
// Pread_nocancel
|
|
// Pwrite_nocancel
|
|
// Waitid_nocancel
|
|
// Poll_nocancel
|
|
// Msgsnd_nocancel
|
|
// Msgrcv_nocancel
|
|
// Sem_wait_nocancel
|
|
// Aio_suspend_nocancel
|
|
// __sigwait_nocancel
|
|
// __semwait_signal_nocancel
|
|
// __mac_mount
|
|
// __mac_get_mount
|
|
// __mac_getfsstat
|