+++ /dev/null
-// 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 [46]int8
- 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
-}
-
-func direntIno(buf []byte) (uint64, bool) {
- return readInt(buf, unsafe.Offsetof(Dirent{}.Fileno), unsafe.Sizeof(Dirent{}.Fileno))
-}
-
-func direntReclen(buf []byte) (uint64, bool) {
- return readInt(buf, unsafe.Offsetof(Dirent{}.Reclen), unsafe.Sizeof(Dirent{}.Reclen))
-}
-
-func direntNamlen(buf []byte) (uint64, bool) {
- return readInt(buf, unsafe.Offsetof(Dirent{}.Namlen), unsafe.Sizeof(Dirent{}.Namlen))
-}
-
-//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
-}
-
-func GetsockoptIPMreqn(fd, level, opt int) (*IPMreqn, error) {
- var value IPMreqn
- vallen := _Socklen(SizeofIPMreqn)
- errno := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen)
- return &value, errno
-}
-
-func SetsockoptIPMreqn(fd, level, opt int, mreq *IPMreqn) (err error) {
- return setsockopt(fd, level, opt, unsafe.Pointer(mreq), unsafe.Sizeof(*mreq))
-}
-
-func Accept4(fd, flags int) (nfd int, sa Sockaddr, err error) {
- var rsa RawSockaddrAny
- var len _Socklen = SizeofSockaddrAny
- nfd, err = accept4(fd, &rsa, &len, flags)
- if err != nil {
- return
- }
- if len > SizeofSockaddrAny {
- panic("RawSockaddrAny too small")
- }
- sa, err = anyToSockaddr(&rsa)
- if err != nil {
- Close(nfd)
- nfd = 0
- }
- return
-}
-
-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))
- n = int(r0)
- if e1 != 0 {
- err = e1
- }
- return
-}
-
-// Derive extattr namespace and attribute name
-
-func xattrnamespace(fullattr string) (ns int, attr string, err error) {
- s := -1
- for idx, val := range fullattr {
- if val == '.' {
- s = idx
- break
- }
- }
-
- if s == -1 {
- return -1, "", ENOATTR
- }
-
- namespace := fullattr[0:s]
- attr = fullattr[s+1:]
-
- switch namespace {
- case "user":
- return EXTATTR_NAMESPACE_USER, attr, nil
- case "system":
- return EXTATTR_NAMESPACE_SYSTEM, attr, nil
- default:
- return -1, "", ENOATTR
- }
-}
-
-func initxattrdest(dest []byte, idx int) (d unsafe.Pointer) {
- if len(dest) > idx {
- return unsafe.Pointer(&dest[idx])
- } else {
- return unsafe.Pointer(_zero)
- }
-}
-
-// FreeBSD implements its own syscalls to handle extended attributes
-
-func Getxattr(file string, attr string, dest []byte) (sz int, err error) {
- d := initxattrdest(dest, 0)
- destsize := len(dest)
-
- nsid, a, err := xattrnamespace(attr)
- if err != nil {
- return -1, err
- }
-
- return ExtattrGetFile(file, nsid, a, uintptr(d), destsize)
-}
-
-func Fgetxattr(fd int, attr string, dest []byte) (sz int, err error) {
- d := initxattrdest(dest, 0)
- destsize := len(dest)
-
- nsid, a, err := xattrnamespace(attr)
- if err != nil {
- return -1, err
- }
-
- return ExtattrGetFd(fd, nsid, a, uintptr(d), destsize)
-}
-
-func Lgetxattr(link string, attr string, dest []byte) (sz int, err error) {
- d := initxattrdest(dest, 0)
- destsize := len(dest)
-
- nsid, a, err := xattrnamespace(attr)
- if err != nil {
- return -1, err
- }
-
- return ExtattrGetLink(link, nsid, a, uintptr(d), destsize)
-}
-
-// flags are unused on FreeBSD
-
-func Fsetxattr(fd int, attr string, data []byte, flags int) (err error) {
- d := unsafe.Pointer(&data[0])
- datasiz := len(data)
-
- nsid, a, err := xattrnamespace(attr)
- if err != nil {
- return
- }
-
- _, err = ExtattrSetFd(fd, nsid, a, uintptr(d), datasiz)
- return
-}
-
-func Setxattr(file string, attr string, data []byte, flags int) (err error) {
- d := unsafe.Pointer(&data[0])
- datasiz := len(data)
-
- nsid, a, err := xattrnamespace(attr)
- if err != nil {
- return
- }
-
- _, err = ExtattrSetFile(file, nsid, a, uintptr(d), datasiz)
- return
-}
-
-func Lsetxattr(link string, attr string, data []byte, flags int) (err error) {
- d := unsafe.Pointer(&data[0])
- datasiz := len(data)
-
- nsid, a, err := xattrnamespace(attr)
- if err != nil {
- return
- }
-
- _, err = ExtattrSetLink(link, nsid, a, uintptr(d), datasiz)
- return
-}
-
-func Removexattr(file string, attr string) (err error) {
- nsid, a, err := xattrnamespace(attr)
- if err != nil {
- return
- }
-
- err = ExtattrDeleteFile(file, nsid, a)
- return
-}
-
-func Fremovexattr(fd int, attr string) (err error) {
- nsid, a, err := xattrnamespace(attr)
- if err != nil {
- return
- }
-
- err = ExtattrDeleteFd(fd, nsid, a)
- return
-}
-
-func Lremovexattr(link string, attr string) (err error) {
- nsid, a, err := xattrnamespace(attr)
- if err != nil {
- return
- }
-
- err = ExtattrDeleteLink(link, nsid, a)
- return
-}
-
-func Listxattr(file string, dest []byte) (sz int, err error) {
- d := initxattrdest(dest, 0)
- destsiz := len(dest)
-
- // FreeBSD won't allow you to list xattrs from multiple namespaces
- s := 0
- var e error
- for _, nsid := range [...]int{EXTATTR_NAMESPACE_USER, EXTATTR_NAMESPACE_SYSTEM} {
- stmp, e := ExtattrListFile(file, nsid, uintptr(d), destsiz)
-
- /* Errors accessing system attrs are ignored so that
- * we can implement the Linux-like behavior of omitting errors that
- * we don't have read permissions on
- *
- * Linux will still error if we ask for user attributes on a file that
- * we don't have read permissions on, so don't ignore those errors
- */
- if e != nil && e == EPERM && nsid != EXTATTR_NAMESPACE_USER {
- e = nil
- continue
- } else if e != nil {
- return s, e
- }
-
- s += stmp
- destsiz -= s
- if destsiz < 0 {
- destsiz = 0
- }
- d = initxattrdest(dest, s)
- }
-
- return s, e
-}
-
-func Flistxattr(fd int, dest []byte) (sz int, err error) {
- d := initxattrdest(dest, 0)
- destsiz := len(dest)
-
- s := 0
- var e error
- for _, nsid := range [...]int{EXTATTR_NAMESPACE_USER, EXTATTR_NAMESPACE_SYSTEM} {
- stmp, e := ExtattrListFd(fd, nsid, uintptr(d), destsiz)
- if e != nil && e == EPERM && nsid != EXTATTR_NAMESPACE_USER {
- e = nil
- continue
- } else if e != nil {
- return s, e
- }
-
- s += stmp
- destsiz -= s
- if destsiz < 0 {
- destsiz = 0
- }
- d = initxattrdest(dest, s)
- }
-
- return s, e
-}
-
-func Llistxattr(link string, dest []byte) (sz int, err error) {
- d := initxattrdest(dest, 0)
- destsiz := len(dest)
-
- s := 0
- var e error
- for _, nsid := range [...]int{EXTATTR_NAMESPACE_USER, EXTATTR_NAMESPACE_SYSTEM} {
- stmp, e := ExtattrListLink(link, nsid, uintptr(d), destsiz)
- if e != nil && e == EPERM && nsid != EXTATTR_NAMESPACE_USER {
- e = nil
- continue
- } else if e != nil {
- return s, e
- }
-
- s += stmp
- destsiz -= s
- if destsiz < 0 {
- destsiz = 0
- }
- d = initxattrdest(dest, s)
- }
-
- return s, e
-}
-
-//sys ioctl(fd int, req uint, arg uintptr) (err error)
-
-// ioctl itself should not be exposed directly, but additional get/set
-// functions for specific types are permissible.
-
-// IoctlSetInt performs an ioctl operation which sets an integer value
-// on fd, using the specified request number.
-func IoctlSetInt(fd int, req uint, value int) error {
- return ioctl(fd, req, uintptr(value))
-}
-
-func IoctlSetWinsize(fd int, req uint, value *Winsize) error {
- return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
-}
-
-func IoctlSetTermios(fd int, req uint, value *Termios) error {
- return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
-}
-
-// IoctlGetInt performs an ioctl operation which gets an integer value
-// from fd, using the specified request number.
-func IoctlGetInt(fd int, req uint) (int, error) {
- var value int
- err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
- return value, err
-}
-
-func IoctlGetWinsize(fd int, req uint) (*Winsize, error) {
- var value Winsize
- err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
- return &value, err
-}
-
-func IoctlGetTermios(fd int, req uint) (*Termios, error) {
- var value Termios
- err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
- return &value, err
-}
-
-/*
- * Exposed directly
- */
-//sys Access(path string, mode uint32) (err error)
-//sys Adjtime(delta *Timeval, olddelta *Timeval) (err error)
-//sys CapEnter() (err error)
-//sys capRightsGet(version int, fd int, rightsp *CapRights) (err error) = SYS___CAP_RIGHTS_GET
-//sys capRightsLimit(fd int, rightsp *CapRights) (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 ExtattrGetFd(fd int, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error)
-//sys ExtattrSetFd(fd int, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error)
-//sys ExtattrDeleteFd(fd int, attrnamespace int, attrname string) (err error)
-//sys ExtattrListFd(fd int, attrnamespace int, data uintptr, nbytes int) (ret int, err error)
-//sys ExtattrGetFile(file string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error)
-//sys ExtattrSetFile(file string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error)
-//sys ExtattrDeleteFile(file string, attrnamespace int, attrname string) (err error)
-//sys ExtattrListFile(file string, attrnamespace int, data uintptr, nbytes int) (ret int, err error)
-//sys ExtattrGetLink(link string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error)
-//sys ExtattrSetLink(link string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error)
-//sys ExtattrDeleteLink(link string, attrnamespace int, attrname string) (err error)
-//sys ExtattrListLink(link string, attrnamespace int, data uintptr, nbytes int) (ret int, err error)
-//sys Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_POSIX_FADVISE
-//sys Faccessat(dirfd int, path string, mode uint32, flags int) (err error)
-//sys Fchdir(fd int) (err error)
-//sys Fchflags(fd int, flags int) (err error)
-//sys Fchmod(fd int, mode uint32) (err error)
-//sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error)
-//sys Fchown(fd int, uid int, gid int) (err error)
-//sys Fchownat(dirfd int, path string, uid int, gid int, flags 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 Linkat(pathfd int, path string, linkfd int, link string, flags int) (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 Mkdirat(dirfd int, 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 Nanosleep(time *Timespec, leftover *Timespec) (err error)
-//sys Open(path string, mode int, perm uint32) (fd int, err error)
-//sys Openat(fdat int, path string, mode int, perm uint32) (fd int, err error)
-//sys Pathconf(path string, name int) (val int, err error)
-//sys Pread(fd int, p []byte, offset int64) (n int, err error)
-//sys Pwrite(fd int, p []byte, offset int64) (n int, err error)
-//sys read(fd int, p []byte) (n int, err error)
-//sys Readlink(path string, buf []byte) (n int, err error)
-//sys Readlinkat(dirfd int, path string, buf []byte) (n int, err error)
-//sys Rename(from string, to string) (err error)
-//sys Renameat(fromfd int, from string, tofd int, 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 Symlinkat(oldpath string, newdirfd int, newpath 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 Unlinkat(dirfd int, path string, flags int) (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
-//sys accept4(fd int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (nfd int, err error)
-//sys utimensat(dirfd int, path string, times *[2]Timespec, flags int) (err error)
-
-/*
- * Unimplemented
- */
-// 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
-// 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
-// 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
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