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nginx-sso/vendor/golang.org/x/sys/unix/syscall_freebsd.go
Knut Ahlers 12a38ee1c8
Update vendoring
Signed-off-by: Knut Ahlers <knut@ahlers.me>
2019-11-03 18:51:13 +01:00

884 lines
25 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 (
"sync"
"unsafe"
)
const (
SYS_FSTAT_FREEBSD12 = 551 // { int fstat(int fd, _Out_ struct stat *sb); }
SYS_FSTATAT_FREEBSD12 = 552 // { int fstatat(int fd, _In_z_ char *path, \
SYS_GETDIRENTRIES_FREEBSD12 = 554 // { ssize_t getdirentries(int fd, \
SYS_STATFS_FREEBSD12 = 555 // { int statfs(_In_z_ char *path, \
SYS_FSTATFS_FREEBSD12 = 556 // { int fstatfs(int fd, \
SYS_GETFSSTAT_FREEBSD12 = 557 // { int getfsstat( \
SYS_MKNODAT_FREEBSD12 = 559 // { int mknodat(int fd, _In_z_ char *path, \
)
// See https://www.freebsd.org/doc/en_US.ISO8859-1/books/porters-handbook/versions.html.
var (
osreldateOnce sync.Once
osreldate uint32
)
// INO64_FIRST from /usr/src/lib/libc/sys/compat-ino64.h
const _ino64First = 1200031
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 [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))
}
func Pipe(p []int) (err error) {
return Pipe2(p, 0)
}
//sysnb pipe2(p *[2]_C_int, flags int) (err error)
func Pipe2(p []int, flags int) error {
if len(p) != 2 {
return EINVAL
}
var pp [2]_C_int
err := pipe2(&pp, flags)
p[0] = int(pp[0])
p[1] = int(pp[1])
return err
}
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(fd, &rsa)
if err != nil {
Close(nfd)
nfd = 0
}
return
}
const ImplementsGetwd = true
//sys Getcwd(buf []byte) (n int, err error) = SYS___GETCWD
func Getwd() (string, error) {
var buf [PathMax]byte
_, err := Getcwd(buf[0:])
if err != nil {
return "", err
}
n := clen(buf[:])
if n < 1 {
return "", EINVAL
}
return string(buf[:n]), nil
}
func Getfsstat(buf []Statfs_t, flags int) (n int, err error) {
var (
_p0 unsafe.Pointer
bufsize uintptr
oldBuf []statfs_freebsd11_t
needsConvert bool
)
if len(buf) > 0 {
if supportsABI(_ino64First) {
_p0 = unsafe.Pointer(&buf[0])
bufsize = unsafe.Sizeof(Statfs_t{}) * uintptr(len(buf))
} else {
n := len(buf)
oldBuf = make([]statfs_freebsd11_t, n)
_p0 = unsafe.Pointer(&oldBuf[0])
bufsize = unsafe.Sizeof(statfs_freebsd11_t{}) * uintptr(n)
needsConvert = true
}
}
var sysno uintptr = SYS_GETFSSTAT
if supportsABI(_ino64First) {
sysno = SYS_GETFSSTAT_FREEBSD12
}
r0, _, e1 := Syscall(sysno, uintptr(_p0), bufsize, uintptr(flags))
n = int(r0)
if e1 != 0 {
err = e1
}
if e1 == 0 && needsConvert {
for i := range oldBuf {
buf[i].convertFrom(&oldBuf[i])
}
}
return
}
func setattrlistTimes(path string, times []Timespec, flags int) error {
// used on Darwin for UtimesNano
return ENOSYS
}
//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 Uname(uname *Utsname) error {
mib := []_C_int{CTL_KERN, KERN_OSTYPE}
n := unsafe.Sizeof(uname.Sysname)
if err := sysctl(mib, &uname.Sysname[0], &n, nil, 0); err != nil {
return err
}
mib = []_C_int{CTL_KERN, KERN_HOSTNAME}
n = unsafe.Sizeof(uname.Nodename)
if err := sysctl(mib, &uname.Nodename[0], &n, nil, 0); err != nil {
return err
}
mib = []_C_int{CTL_KERN, KERN_OSRELEASE}
n = unsafe.Sizeof(uname.Release)
if err := sysctl(mib, &uname.Release[0], &n, nil, 0); err != nil {
return err
}
mib = []_C_int{CTL_KERN, KERN_VERSION}
n = unsafe.Sizeof(uname.Version)
if err := sysctl(mib, &uname.Version[0], &n, nil, 0); 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 := sysctl(mib, &uname.Machine[0], &n, nil, 0); err != nil {
return err
}
return nil
}
func Stat(path string, st *Stat_t) (err error) {
var oldStat stat_freebsd11_t
if supportsABI(_ino64First) {
return fstatat_freebsd12(AT_FDCWD, path, st, 0)
}
err = stat(path, &oldStat)
if err != nil {
return err
}
st.convertFrom(&oldStat)
return nil
}
func Lstat(path string, st *Stat_t) (err error) {
var oldStat stat_freebsd11_t
if supportsABI(_ino64First) {
return fstatat_freebsd12(AT_FDCWD, path, st, AT_SYMLINK_NOFOLLOW)
}
err = lstat(path, &oldStat)
if err != nil {
return err
}
st.convertFrom(&oldStat)
return nil
}
func Fstat(fd int, st *Stat_t) (err error) {
var oldStat stat_freebsd11_t
if supportsABI(_ino64First) {
return fstat_freebsd12(fd, st)
}
err = fstat(fd, &oldStat)
if err != nil {
return err
}
st.convertFrom(&oldStat)
return nil
}
func Fstatat(fd int, path string, st *Stat_t, flags int) (err error) {
var oldStat stat_freebsd11_t
if supportsABI(_ino64First) {
return fstatat_freebsd12(fd, path, st, flags)
}
err = fstatat(fd, path, &oldStat, flags)
if err != nil {
return err
}
st.convertFrom(&oldStat)
return nil
}
func Statfs(path string, st *Statfs_t) (err error) {
var oldStatfs statfs_freebsd11_t
if supportsABI(_ino64First) {
return statfs_freebsd12(path, st)
}
err = statfs(path, &oldStatfs)
if err != nil {
return err
}
st.convertFrom(&oldStatfs)
return nil
}
func Fstatfs(fd int, st *Statfs_t) (err error) {
var oldStatfs statfs_freebsd11_t
if supportsABI(_ino64First) {
return fstatfs_freebsd12(fd, st)
}
err = fstatfs(fd, &oldStatfs)
if err != nil {
return err
}
st.convertFrom(&oldStatfs)
return nil
}
func Getdents(fd int, buf []byte) (n int, err error) {
return Getdirentries(fd, buf, nil)
}
func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) {
if supportsABI(_ino64First) {
if basep == nil || unsafe.Sizeof(*basep) == 8 {
return getdirentries_freebsd12(fd, buf, (*uint64)(unsafe.Pointer(basep)))
}
// The freebsd12 syscall needs a 64-bit base. On 32-bit machines
// we can't just use the basep passed in. See #32498.
var base uint64 = uint64(*basep)
n, err = getdirentries_freebsd12(fd, buf, &base)
*basep = uintptr(base)
if base>>32 != 0 {
// We can't stuff the base back into a uintptr, so any
// future calls would be suspect. Generate an error.
// EIO is allowed by getdirentries.
err = EIO
}
return
}
// The old syscall entries are smaller than the new. Use 1/4 of the original
// buffer size rounded up to DIRBLKSIZ (see /usr/src/lib/libc/sys/getdirentries.c).
oldBufLen := roundup(len(buf)/4, _dirblksiz)
oldBuf := make([]byte, oldBufLen)
n, err = getdirentries(fd, oldBuf, basep)
if err == nil && n > 0 {
n = convertFromDirents11(buf, oldBuf[:n])
}
return
}
func Mknod(path string, mode uint32, dev uint64) (err error) {
var oldDev int
if supportsABI(_ino64First) {
return mknodat_freebsd12(AT_FDCWD, path, mode, dev)
}
oldDev = int(dev)
return mknod(path, mode, oldDev)
}
func Mknodat(fd int, path string, mode uint32, dev uint64) (err error) {
var oldDev int
if supportsABI(_ino64First) {
return mknodat_freebsd12(fd, path, mode, dev)
}
oldDev = int(dev)
return mknodat(fd, path, mode, oldDev)
}
// round x to the nearest multiple of y, larger or equal to x.
//
// from /usr/include/sys/param.h Macros for counting and rounding.
// #define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
func roundup(x, y int) int {
return ((x + y - 1) / y) * y
}
func (s *Stat_t) convertFrom(old *stat_freebsd11_t) {
*s = Stat_t{
Dev: uint64(old.Dev),
Ino: uint64(old.Ino),
Nlink: uint64(old.Nlink),
Mode: old.Mode,
Uid: old.Uid,
Gid: old.Gid,
Rdev: uint64(old.Rdev),
Atim: old.Atim,
Mtim: old.Mtim,
Ctim: old.Ctim,
Btim: old.Btim,
Size: old.Size,
Blocks: old.Blocks,
Blksize: old.Blksize,
Flags: old.Flags,
Gen: uint64(old.Gen),
}
}
func (s *Statfs_t) convertFrom(old *statfs_freebsd11_t) {
*s = Statfs_t{
Version: _statfsVersion,
Type: old.Type,
Flags: old.Flags,
Bsize: old.Bsize,
Iosize: old.Iosize,
Blocks: old.Blocks,
Bfree: old.Bfree,
Bavail: old.Bavail,
Files: old.Files,
Ffree: old.Ffree,
Syncwrites: old.Syncwrites,
Asyncwrites: old.Asyncwrites,
Syncreads: old.Syncreads,
Asyncreads: old.Asyncreads,
// Spare
Namemax: old.Namemax,
Owner: old.Owner,
Fsid: old.Fsid,
// Charspare
// Fstypename
// Mntfromname
// Mntonname
}
sl := old.Fstypename[:]
n := clen(*(*[]byte)(unsafe.Pointer(&sl)))
copy(s.Fstypename[:], old.Fstypename[:n])
sl = old.Mntfromname[:]
n = clen(*(*[]byte)(unsafe.Pointer(&sl)))
copy(s.Mntfromname[:], old.Mntfromname[:n])
sl = old.Mntonname[:]
n = clen(*(*[]byte)(unsafe.Pointer(&sl)))
copy(s.Mntonname[:], old.Mntonname[:n])
}
func convertFromDirents11(buf []byte, old []byte) int {
const (
fixedSize = int(unsafe.Offsetof(Dirent{}.Name))
oldFixedSize = int(unsafe.Offsetof(dirent_freebsd11{}.Name))
)
dstPos := 0
srcPos := 0
for dstPos+fixedSize < len(buf) && srcPos+oldFixedSize < len(old) {
var dstDirent Dirent
var srcDirent dirent_freebsd11
// If multiple direntries are written, sometimes when we reach the final one,
// we may have cap of old less than size of dirent_freebsd11.
copy((*[unsafe.Sizeof(srcDirent)]byte)(unsafe.Pointer(&srcDirent))[:], old[srcPos:])
reclen := roundup(fixedSize+int(srcDirent.Namlen)+1, 8)
if dstPos+reclen > len(buf) {
break
}
dstDirent.Fileno = uint64(srcDirent.Fileno)
dstDirent.Off = 0
dstDirent.Reclen = uint16(reclen)
dstDirent.Type = srcDirent.Type
dstDirent.Pad0 = 0
dstDirent.Namlen = uint16(srcDirent.Namlen)
dstDirent.Pad1 = 0
copy(dstDirent.Name[:], srcDirent.Name[:srcDirent.Namlen])
copy(buf[dstPos:], (*[unsafe.Sizeof(dstDirent)]byte)(unsafe.Pointer(&dstDirent))[:])
padding := buf[dstPos+fixedSize+int(dstDirent.Namlen) : dstPos+reclen]
for i := range padding {
padding[i] = 0
}
dstPos += int(dstDirent.Reclen)
srcPos += int(srcDirent.Reclen)
}
return dstPos
}
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)
}
//sys ptrace(request int, pid int, addr uintptr, data int) (err error)
func PtraceAttach(pid int) (err error) {
return ptrace(PTRACE_ATTACH, pid, 0, 0)
}
func PtraceCont(pid int, signal int) (err error) {
return ptrace(PTRACE_CONT, pid, 1, signal)
}
func PtraceDetach(pid int) (err error) {
return ptrace(PTRACE_DETACH, pid, 1, 0)
}
func PtraceGetFpRegs(pid int, fpregsout *FpReg) (err error) {
return ptrace(PTRACE_GETFPREGS, pid, uintptr(unsafe.Pointer(fpregsout)), 0)
}
func PtraceGetFsBase(pid int, fsbase *int64) (err error) {
return ptrace(PTRACE_GETFSBASE, pid, uintptr(unsafe.Pointer(fsbase)), 0)
}
func PtraceGetRegs(pid int, regsout *Reg) (err error) {
return ptrace(PTRACE_GETREGS, pid, uintptr(unsafe.Pointer(regsout)), 0)
}
func PtraceIO(req int, pid int, addr uintptr, out []byte, countin int) (count int, err error) {
ioDesc := PtraceIoDesc{Op: int32(req), Offs: (*byte)(unsafe.Pointer(addr)), Addr: (*byte)(unsafe.Pointer(&out[0])), Len: uint(countin)}
err = ptrace(PTRACE_IO, pid, uintptr(unsafe.Pointer(&ioDesc)), 0)
return int(ioDesc.Len), err
}
func PtraceLwpEvents(pid int, enable int) (err error) {
return ptrace(PTRACE_LWPEVENTS, pid, 0, enable)
}
func PtraceLwpInfo(pid int, info uintptr) (err error) {
return ptrace(PTRACE_LWPINFO, pid, info, int(unsafe.Sizeof(PtraceLwpInfoStruct{})))
}
func PtracePeekData(pid int, addr uintptr, out []byte) (count int, err error) {
return PtraceIO(PIOD_READ_D, pid, addr, out, SizeofLong)
}
func PtracePeekText(pid int, addr uintptr, out []byte) (count int, err error) {
return PtraceIO(PIOD_READ_I, pid, addr, out, SizeofLong)
}
func PtracePokeData(pid int, addr uintptr, data []byte) (count int, err error) {
return PtraceIO(PIOD_WRITE_D, pid, addr, data, SizeofLong)
}
func PtracePokeText(pid int, addr uintptr, data []byte) (count int, err error) {
return PtraceIO(PIOD_WRITE_I, pid, addr, data, SizeofLong)
}
func PtraceSetRegs(pid int, regs *Reg) (err error) {
return ptrace(PTRACE_SETREGS, pid, uintptr(unsafe.Pointer(regs)), 0)
}
func PtraceSingleStep(pid int) (err error) {
return ptrace(PTRACE_SINGLESTEP, pid, 1, 0)
}
/*
* 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_freebsd11_t) (err error)
//sys fstat_freebsd12(fd int, stat *Stat_t) (err error)
//sys fstatat(fd int, path string, stat *stat_freebsd11_t, flags int) (err error)
//sys fstatat_freebsd12(fd int, path string, stat *Stat_t, flags int) (err error)
//sys fstatfs(fd int, stat *statfs_freebsd11_t) (err error)
//sys fstatfs_freebsd12(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 getdirentries_freebsd12(fd int, buf []byte, basep *uint64) (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_freebsd11_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 mknodat_freebsd12(fd int, path string, mode uint32, dev uint64) (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(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_freebsd11_t) (err error)
//sys statfs(path string, stat *statfs_freebsd11_t) (err error)
//sys statfs_freebsd12(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
// Getdents
// Getdirentriesattr
// Searchfs
// Delete
// Copyfile
// Watchevent
// Waitevent
// Modwatch
// 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