golang syscall_dragonfly 代码
文件路径：/src/cmd/vendor/golang.org/x/sys/unix/syscall_dragonfly.go
/ Copyright 2009 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.
/ DragonFly BSD 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 (
"sync"
"unsafe"
)
/ See version list in https://github.com/DragonFlyBSD/DragonFlyBSD/blob/master/sys/sys/param.h
var (
osreldateOnce sync.Once
osreldate uint32
)
/ First __DragonFly_version after September 2019 ABI changes
/ http://lists.dragonflybsd.org/pipermail/users/2019-September/358280.html
const _dragonflyABIChangeVersion = 500705
func supportsABI(ver uint32) bool {
osreldateOnce.Do(func() { osreldate, _ = SysctlUint32("kern.osreldate") })
return osreldate >= ver
}
/ SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets.
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
}
func anyToSockaddrGOOS(fd int, rsa *RawSockaddrAny) (Sockaddr, error) {
return nil, EAFNOSUPPORT
}
/ 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) {
namlen, ok := direntNamlen(buf)
if !ok {
return 0, false
}
return (16 + namlen + 1 + 7) &^ 7, true
}
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
}
r, w, err := pipe()
if err == nil {
p[0], p[1] = r, w
}
return
}
/sysnb pipe2(p *[2]_C_int, flags int) (r int, w int, err error)
func Pipe2(p []int, flags int) (err error) {
if len(p) != 2 {
return EINVAL
}
var pp [2]_C_int
/ pipe2 on dragonfly takes an fds array as an argument, but still
/ returns the file descriptors.
r, w, err := pipe2(&pp, flags)
if err == nil {
p[0], p[1] = r, w
}
return err
}
/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 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(fd, &rsa)
if err != nil {
Close(nfd)
nfd = 0
}
return
}
/sys Getcwd(buf []byte) (n int, err error) = SYS___GETCWD
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
}
/sys ioctl(fd int, req uint, arg uintptr) (err error)
/sys sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL
func sysctlUname(mib []_C_int, old *byte, oldlen *uintptr) error {
err := sysctl(mib, old, oldlen, nil, 0)
if err != nil {
/ Utsname members on Dragonfly are only 32 bytes and
/ the syscall returns ENOMEM in case the actual value
/ is longer.
if err == ENOMEM {
err = nil
}
}
return err
}
func Uname(uname *Utsname) error {
mib := []_C_int{CTL_KERN, KERN_OSTYPE}
n := unsafe.Sizeof(uname.Sysname)
if err := sysctlUname(mib, &uname.Sysname[0], &n); err != nil {
return err
}
uname.Sysname[unsafe.Sizeof(uname.Sysname)-1] = 0
mib = []_C_int{CTL_KERN, KERN_HOSTNAME}
n = unsafe.Sizeof(uname.Nodename)
if err := sysctlUname(mib, &uname.Nodename[0], &n); err != nil {
return err
}
uname.Nodename[unsafe.Sizeof(uname.Nodename)-1] = 0
mib = []_C_int{CTL_KERN, KERN_OSRELEASE}
n = unsafe.Sizeof(uname.Release)
if err := sysctlUname(mib, &uname.Release[0], &n); err != nil {
return err
}
uname.Release[unsafe.Sizeof(uname.Release)-1] = 0
mib = []_C_int{CTL_KERN, KERN_VERSION}
n = unsafe.Sizeof(uname.Version)
if err := sysctlUname(mib, &uname.Version[0], &n); err != nil {
return err
}
/ The version might have newlines or tabs in it, convert them to
/ spaces.
for i, b := range uname.Version {
if b == '\n' || b == '\t' {
if i == len(uname.Version)-1 {
uname.Version[i] = 0
} else {
uname.Version[i] = ' '
}
}
}
mib = []_C_int{CTL_HW, HW_MACHINE}
n = unsafe.Sizeof(uname.Machine)
if err := sysctlUname(mib, &uname.Machine[0], &n); err != nil {
return err
}
uname.Machine[unsafe.Sizeof(uname.Machine)-1] = 0
return nil
}
func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
if raceenabled {
raceReleaseMerge(unsafe.Pointer(&ioSync))
}
return sendfile(outfd, infd, offset, count)
}
/*
* 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 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 Fstatat(fd int, path string, stat *Stat_t, flags int) (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 Getdents(fd int, buf []byte) (n int, 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 Mknodat(fd int, 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(dirfd int, 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 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(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, 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
* TODO(jsing): Update this list for DragonFly.
*/
/ Profil
/ Sigaction
/ Sigprocmask
/ Getlogin
/ Sigpending
/ Sigaltstack
/ 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
/ 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
/ Msgsnd_nocancel
/ Msgrcv_nocancel
/ Sem_wait_nocancel
/ Aio_suspend_nocancel
/ __sigwait_nocancel
/ __semwait_signal_nocancel
/ __mac_mount
/ __mac_get_mount
/ __mac_getfsstat