feat(application): inital commit
This commit is contained in:
commit
1319cc82ff
724 changed files with 263523 additions and 0 deletions
554
vendor/golang.org/x/sys/unix/syscall_unix.go
generated
vendored
Normal file
554
vendor/golang.org/x/sys/unix/syscall_unix.go
generated
vendored
Normal file
|
|
@ -0,0 +1,554 @@
|
|||
// 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.
|
||||
|
||||
//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris
|
||||
// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
|
||||
|
||||
package unix
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"sort"
|
||||
"sync"
|
||||
"syscall"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
var (
|
||||
Stdin = 0
|
||||
Stdout = 1
|
||||
Stderr = 2
|
||||
)
|
||||
|
||||
// Do the interface allocations only once for common
|
||||
// Errno values.
|
||||
var (
|
||||
errEAGAIN error = syscall.EAGAIN
|
||||
errEINVAL error = syscall.EINVAL
|
||||
errENOENT error = syscall.ENOENT
|
||||
)
|
||||
|
||||
var (
|
||||
signalNameMapOnce sync.Once
|
||||
signalNameMap map[string]syscall.Signal
|
||||
)
|
||||
|
||||
// errnoErr returns common boxed Errno values, to prevent
|
||||
// allocations at runtime.
|
||||
func errnoErr(e syscall.Errno) error {
|
||||
switch e {
|
||||
case 0:
|
||||
return nil
|
||||
case EAGAIN:
|
||||
return errEAGAIN
|
||||
case EINVAL:
|
||||
return errEINVAL
|
||||
case ENOENT:
|
||||
return errENOENT
|
||||
}
|
||||
return e
|
||||
}
|
||||
|
||||
// ErrnoName returns the error name for error number e.
|
||||
func ErrnoName(e syscall.Errno) string {
|
||||
i := sort.Search(len(errorList), func(i int) bool {
|
||||
return errorList[i].num >= e
|
||||
})
|
||||
if i < len(errorList) && errorList[i].num == e {
|
||||
return errorList[i].name
|
||||
}
|
||||
return ""
|
||||
}
|
||||
|
||||
// SignalName returns the signal name for signal number s.
|
||||
func SignalName(s syscall.Signal) string {
|
||||
i := sort.Search(len(signalList), func(i int) bool {
|
||||
return signalList[i].num >= s
|
||||
})
|
||||
if i < len(signalList) && signalList[i].num == s {
|
||||
return signalList[i].name
|
||||
}
|
||||
return ""
|
||||
}
|
||||
|
||||
// SignalNum returns the syscall.Signal for signal named s,
|
||||
// or 0 if a signal with such name is not found.
|
||||
// The signal name should start with "SIG".
|
||||
func SignalNum(s string) syscall.Signal {
|
||||
signalNameMapOnce.Do(func() {
|
||||
signalNameMap = make(map[string]syscall.Signal, len(signalList))
|
||||
for _, signal := range signalList {
|
||||
signalNameMap[signal.name] = signal.num
|
||||
}
|
||||
})
|
||||
return signalNameMap[s]
|
||||
}
|
||||
|
||||
// clen returns the index of the first NULL byte in n or len(n) if n contains no NULL byte.
|
||||
func clen(n []byte) int {
|
||||
i := bytes.IndexByte(n, 0)
|
||||
if i == -1 {
|
||||
i = len(n)
|
||||
}
|
||||
return i
|
||||
}
|
||||
|
||||
// Mmap manager, for use by operating system-specific implementations.
|
||||
|
||||
type mmapper struct {
|
||||
sync.Mutex
|
||||
active map[*byte][]byte // active mappings; key is last byte in mapping
|
||||
mmap func(addr, length uintptr, prot, flags, fd int, offset int64) (uintptr, error)
|
||||
munmap func(addr uintptr, length uintptr) error
|
||||
}
|
||||
|
||||
func (m *mmapper) Mmap(fd int, offset int64, length int, prot int, flags int) (data []byte, err error) {
|
||||
if length <= 0 {
|
||||
return nil, EINVAL
|
||||
}
|
||||
|
||||
// Map the requested memory.
|
||||
addr, errno := m.mmap(0, uintptr(length), prot, flags, fd, offset)
|
||||
if errno != nil {
|
||||
return nil, errno
|
||||
}
|
||||
|
||||
// Use unsafe to convert addr into a []byte.
|
||||
b := unsafe.Slice((*byte)(unsafe.Pointer(addr)), length)
|
||||
|
||||
// Register mapping in m and return it.
|
||||
p := &b[cap(b)-1]
|
||||
m.Lock()
|
||||
defer m.Unlock()
|
||||
m.active[p] = b
|
||||
return b, nil
|
||||
}
|
||||
|
||||
func (m *mmapper) Munmap(data []byte) (err error) {
|
||||
if len(data) == 0 || len(data) != cap(data) {
|
||||
return EINVAL
|
||||
}
|
||||
|
||||
// Find the base of the mapping.
|
||||
p := &data[cap(data)-1]
|
||||
m.Lock()
|
||||
defer m.Unlock()
|
||||
b := m.active[p]
|
||||
if b == nil || &b[0] != &data[0] {
|
||||
return EINVAL
|
||||
}
|
||||
|
||||
// Unmap the memory and update m.
|
||||
if errno := m.munmap(uintptr(unsafe.Pointer(&b[0])), uintptr(len(b))); errno != nil {
|
||||
return errno
|
||||
}
|
||||
delete(m.active, p)
|
||||
return nil
|
||||
}
|
||||
|
||||
func Read(fd int, p []byte) (n int, err error) {
|
||||
n, err = read(fd, p)
|
||||
if raceenabled {
|
||||
if n > 0 {
|
||||
raceWriteRange(unsafe.Pointer(&p[0]), n)
|
||||
}
|
||||
if err == nil {
|
||||
raceAcquire(unsafe.Pointer(&ioSync))
|
||||
}
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func Write(fd int, p []byte) (n int, err error) {
|
||||
if raceenabled {
|
||||
raceReleaseMerge(unsafe.Pointer(&ioSync))
|
||||
}
|
||||
n, err = write(fd, p)
|
||||
if raceenabled && n > 0 {
|
||||
raceReadRange(unsafe.Pointer(&p[0]), n)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func Pread(fd int, p []byte, offset int64) (n int, err error) {
|
||||
n, err = pread(fd, p, offset)
|
||||
if raceenabled {
|
||||
if n > 0 {
|
||||
raceWriteRange(unsafe.Pointer(&p[0]), n)
|
||||
}
|
||||
if err == nil {
|
||||
raceAcquire(unsafe.Pointer(&ioSync))
|
||||
}
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
|
||||
if raceenabled {
|
||||
raceReleaseMerge(unsafe.Pointer(&ioSync))
|
||||
}
|
||||
n, err = pwrite(fd, p, offset)
|
||||
if raceenabled && n > 0 {
|
||||
raceReadRange(unsafe.Pointer(&p[0]), n)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// For testing: clients can set this flag to force
|
||||
// creation of IPv6 sockets to return EAFNOSUPPORT.
|
||||
var SocketDisableIPv6 bool
|
||||
|
||||
// Sockaddr represents a socket address.
|
||||
type Sockaddr interface {
|
||||
sockaddr() (ptr unsafe.Pointer, len _Socklen, err error) // lowercase; only we can define Sockaddrs
|
||||
}
|
||||
|
||||
// SockaddrInet4 implements the Sockaddr interface for AF_INET type sockets.
|
||||
type SockaddrInet4 struct {
|
||||
Port int
|
||||
Addr [4]byte
|
||||
raw RawSockaddrInet4
|
||||
}
|
||||
|
||||
// SockaddrInet6 implements the Sockaddr interface for AF_INET6 type sockets.
|
||||
type SockaddrInet6 struct {
|
||||
Port int
|
||||
ZoneId uint32
|
||||
Addr [16]byte
|
||||
raw RawSockaddrInet6
|
||||
}
|
||||
|
||||
// SockaddrUnix implements the Sockaddr interface for AF_UNIX type sockets.
|
||||
type SockaddrUnix struct {
|
||||
Name string
|
||||
raw RawSockaddrUnix
|
||||
}
|
||||
|
||||
func Bind(fd int, sa Sockaddr) (err error) {
|
||||
ptr, n, err := sa.sockaddr()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
return bind(fd, ptr, n)
|
||||
}
|
||||
|
||||
func Connect(fd int, sa Sockaddr) (err error) {
|
||||
ptr, n, err := sa.sockaddr()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
return connect(fd, ptr, n)
|
||||
}
|
||||
|
||||
func Getpeername(fd int) (sa Sockaddr, err error) {
|
||||
var rsa RawSockaddrAny
|
||||
var len _Socklen = SizeofSockaddrAny
|
||||
if err = getpeername(fd, &rsa, &len); err != nil {
|
||||
return
|
||||
}
|
||||
return anyToSockaddr(fd, &rsa)
|
||||
}
|
||||
|
||||
func GetsockoptByte(fd, level, opt int) (value byte, err error) {
|
||||
var n byte
|
||||
vallen := _Socklen(1)
|
||||
err = getsockopt(fd, level, opt, unsafe.Pointer(&n), &vallen)
|
||||
return n, err
|
||||
}
|
||||
|
||||
func GetsockoptInt(fd, level, opt int) (value int, err error) {
|
||||
var n int32
|
||||
vallen := _Socklen(4)
|
||||
err = getsockopt(fd, level, opt, unsafe.Pointer(&n), &vallen)
|
||||
return int(n), err
|
||||
}
|
||||
|
||||
func GetsockoptInet4Addr(fd, level, opt int) (value [4]byte, err error) {
|
||||
vallen := _Socklen(4)
|
||||
err = getsockopt(fd, level, opt, unsafe.Pointer(&value[0]), &vallen)
|
||||
return value, err
|
||||
}
|
||||
|
||||
func GetsockoptIPMreq(fd, level, opt int) (*IPMreq, error) {
|
||||
var value IPMreq
|
||||
vallen := _Socklen(SizeofIPMreq)
|
||||
err := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen)
|
||||
return &value, err
|
||||
}
|
||||
|
||||
func GetsockoptIPv6Mreq(fd, level, opt int) (*IPv6Mreq, error) {
|
||||
var value IPv6Mreq
|
||||
vallen := _Socklen(SizeofIPv6Mreq)
|
||||
err := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen)
|
||||
return &value, err
|
||||
}
|
||||
|
||||
func GetsockoptIPv6MTUInfo(fd, level, opt int) (*IPv6MTUInfo, error) {
|
||||
var value IPv6MTUInfo
|
||||
vallen := _Socklen(SizeofIPv6MTUInfo)
|
||||
err := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen)
|
||||
return &value, err
|
||||
}
|
||||
|
||||
func GetsockoptICMPv6Filter(fd, level, opt int) (*ICMPv6Filter, error) {
|
||||
var value ICMPv6Filter
|
||||
vallen := _Socklen(SizeofICMPv6Filter)
|
||||
err := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen)
|
||||
return &value, err
|
||||
}
|
||||
|
||||
func GetsockoptLinger(fd, level, opt int) (*Linger, error) {
|
||||
var linger Linger
|
||||
vallen := _Socklen(SizeofLinger)
|
||||
err := getsockopt(fd, level, opt, unsafe.Pointer(&linger), &vallen)
|
||||
return &linger, err
|
||||
}
|
||||
|
||||
func GetsockoptTimeval(fd, level, opt int) (*Timeval, error) {
|
||||
var tv Timeval
|
||||
vallen := _Socklen(unsafe.Sizeof(tv))
|
||||
err := getsockopt(fd, level, opt, unsafe.Pointer(&tv), &vallen)
|
||||
return &tv, err
|
||||
}
|
||||
|
||||
func GetsockoptUint64(fd, level, opt int) (value uint64, err error) {
|
||||
var n uint64
|
||||
vallen := _Socklen(8)
|
||||
err = getsockopt(fd, level, opt, unsafe.Pointer(&n), &vallen)
|
||||
return n, err
|
||||
}
|
||||
|
||||
func Recvfrom(fd int, p []byte, flags int) (n int, from Sockaddr, err error) {
|
||||
var rsa RawSockaddrAny
|
||||
var len _Socklen = SizeofSockaddrAny
|
||||
if n, err = recvfrom(fd, p, flags, &rsa, &len); err != nil {
|
||||
return
|
||||
}
|
||||
if rsa.Addr.Family != AF_UNSPEC {
|
||||
from, err = anyToSockaddr(fd, &rsa)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func Recvmsg(fd int, p, oob []byte, flags int) (n, oobn int, recvflags int, from Sockaddr, err error) {
|
||||
var iov [1]Iovec
|
||||
if len(p) > 0 {
|
||||
iov[0].Base = &p[0]
|
||||
iov[0].SetLen(len(p))
|
||||
}
|
||||
var rsa RawSockaddrAny
|
||||
n, oobn, recvflags, err = recvmsgRaw(fd, iov[:], oob, flags, &rsa)
|
||||
// source address is only specified if the socket is unconnected
|
||||
if rsa.Addr.Family != AF_UNSPEC {
|
||||
from, err = anyToSockaddr(fd, &rsa)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// RecvmsgBuffers receives a message from a socket using the recvmsg
|
||||
// system call. The flags are passed to recvmsg. Any non-control data
|
||||
// read is scattered into the buffers slices. The results are:
|
||||
// - n is the number of non-control data read into bufs
|
||||
// - oobn is the number of control data read into oob; this may be interpreted using [ParseSocketControlMessage]
|
||||
// - recvflags is flags returned by recvmsg
|
||||
// - from is the address of the sender
|
||||
func RecvmsgBuffers(fd int, buffers [][]byte, oob []byte, flags int) (n, oobn int, recvflags int, from Sockaddr, err error) {
|
||||
iov := make([]Iovec, len(buffers))
|
||||
for i := range buffers {
|
||||
if len(buffers[i]) > 0 {
|
||||
iov[i].Base = &buffers[i][0]
|
||||
iov[i].SetLen(len(buffers[i]))
|
||||
} else {
|
||||
iov[i].Base = (*byte)(unsafe.Pointer(&_zero))
|
||||
}
|
||||
}
|
||||
var rsa RawSockaddrAny
|
||||
n, oobn, recvflags, err = recvmsgRaw(fd, iov, oob, flags, &rsa)
|
||||
if err == nil && rsa.Addr.Family != AF_UNSPEC {
|
||||
from, err = anyToSockaddr(fd, &rsa)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func Sendmsg(fd int, p, oob []byte, to Sockaddr, flags int) (err error) {
|
||||
_, err = SendmsgN(fd, p, oob, to, flags)
|
||||
return
|
||||
}
|
||||
|
||||
func SendmsgN(fd int, p, oob []byte, to Sockaddr, flags int) (n int, err error) {
|
||||
var iov [1]Iovec
|
||||
if len(p) > 0 {
|
||||
iov[0].Base = &p[0]
|
||||
iov[0].SetLen(len(p))
|
||||
}
|
||||
var ptr unsafe.Pointer
|
||||
var salen _Socklen
|
||||
if to != nil {
|
||||
ptr, salen, err = to.sockaddr()
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
}
|
||||
return sendmsgN(fd, iov[:], oob, ptr, salen, flags)
|
||||
}
|
||||
|
||||
// SendmsgBuffers sends a message on a socket to an address using the sendmsg
|
||||
// system call. The flags are passed to sendmsg. Any non-control data written
|
||||
// is gathered from buffers. The function returns the number of bytes written
|
||||
// to the socket.
|
||||
func SendmsgBuffers(fd int, buffers [][]byte, oob []byte, to Sockaddr, flags int) (n int, err error) {
|
||||
iov := make([]Iovec, len(buffers))
|
||||
for i := range buffers {
|
||||
if len(buffers[i]) > 0 {
|
||||
iov[i].Base = &buffers[i][0]
|
||||
iov[i].SetLen(len(buffers[i]))
|
||||
} else {
|
||||
iov[i].Base = (*byte)(unsafe.Pointer(&_zero))
|
||||
}
|
||||
}
|
||||
var ptr unsafe.Pointer
|
||||
var salen _Socklen
|
||||
if to != nil {
|
||||
ptr, salen, err = to.sockaddr()
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
}
|
||||
return sendmsgN(fd, iov, oob, ptr, salen, flags)
|
||||
}
|
||||
|
||||
func Send(s int, buf []byte, flags int) (err error) {
|
||||
return sendto(s, buf, flags, nil, 0)
|
||||
}
|
||||
|
||||
func Sendto(fd int, p []byte, flags int, to Sockaddr) (err error) {
|
||||
var ptr unsafe.Pointer
|
||||
var salen _Socklen
|
||||
if to != nil {
|
||||
ptr, salen, err = to.sockaddr()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
return sendto(fd, p, flags, ptr, salen)
|
||||
}
|
||||
|
||||
func SetsockoptByte(fd, level, opt int, value byte) (err error) {
|
||||
return setsockopt(fd, level, opt, unsafe.Pointer(&value), 1)
|
||||
}
|
||||
|
||||
func SetsockoptInt(fd, level, opt int, value int) (err error) {
|
||||
var n = int32(value)
|
||||
return setsockopt(fd, level, opt, unsafe.Pointer(&n), 4)
|
||||
}
|
||||
|
||||
func SetsockoptInet4Addr(fd, level, opt int, value [4]byte) (err error) {
|
||||
return setsockopt(fd, level, opt, unsafe.Pointer(&value[0]), 4)
|
||||
}
|
||||
|
||||
func SetsockoptIPMreq(fd, level, opt int, mreq *IPMreq) (err error) {
|
||||
return setsockopt(fd, level, opt, unsafe.Pointer(mreq), SizeofIPMreq)
|
||||
}
|
||||
|
||||
func SetsockoptIPv6Mreq(fd, level, opt int, mreq *IPv6Mreq) (err error) {
|
||||
return setsockopt(fd, level, opt, unsafe.Pointer(mreq), SizeofIPv6Mreq)
|
||||
}
|
||||
|
||||
func SetsockoptICMPv6Filter(fd, level, opt int, filter *ICMPv6Filter) error {
|
||||
return setsockopt(fd, level, opt, unsafe.Pointer(filter), SizeofICMPv6Filter)
|
||||
}
|
||||
|
||||
func SetsockoptLinger(fd, level, opt int, l *Linger) (err error) {
|
||||
return setsockopt(fd, level, opt, unsafe.Pointer(l), SizeofLinger)
|
||||
}
|
||||
|
||||
func SetsockoptString(fd, level, opt int, s string) (err error) {
|
||||
var p unsafe.Pointer
|
||||
if len(s) > 0 {
|
||||
p = unsafe.Pointer(&[]byte(s)[0])
|
||||
}
|
||||
return setsockopt(fd, level, opt, p, uintptr(len(s)))
|
||||
}
|
||||
|
||||
func SetsockoptTimeval(fd, level, opt int, tv *Timeval) (err error) {
|
||||
return setsockopt(fd, level, opt, unsafe.Pointer(tv), unsafe.Sizeof(*tv))
|
||||
}
|
||||
|
||||
func SetsockoptUint64(fd, level, opt int, value uint64) (err error) {
|
||||
return setsockopt(fd, level, opt, unsafe.Pointer(&value), 8)
|
||||
}
|
||||
|
||||
func Socket(domain, typ, proto int) (fd int, err error) {
|
||||
if domain == AF_INET6 && SocketDisableIPv6 {
|
||||
return -1, EAFNOSUPPORT
|
||||
}
|
||||
fd, err = socket(domain, typ, proto)
|
||||
return
|
||||
}
|
||||
|
||||
func Socketpair(domain, typ, proto int) (fd [2]int, err error) {
|
||||
var fdx [2]int32
|
||||
err = socketpair(domain, typ, proto, &fdx)
|
||||
if err == nil {
|
||||
fd[0] = int(fdx[0])
|
||||
fd[1] = int(fdx[1])
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
var ioSync int64
|
||||
|
||||
func CloseOnExec(fd int) { fcntl(fd, F_SETFD, FD_CLOEXEC) }
|
||||
|
||||
func SetNonblock(fd int, nonblocking bool) (err error) {
|
||||
flag, err := fcntl(fd, F_GETFL, 0)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if nonblocking {
|
||||
flag |= O_NONBLOCK
|
||||
} else {
|
||||
flag &= ^O_NONBLOCK
|
||||
}
|
||||
_, err = fcntl(fd, F_SETFL, flag)
|
||||
return err
|
||||
}
|
||||
|
||||
// Exec calls execve(2), which replaces the calling executable in the process
|
||||
// tree. argv0 should be the full path to an executable ("/bin/ls") and the
|
||||
// executable name should also be the first argument in argv (["ls", "-l"]).
|
||||
// envv are the environment variables that should be passed to the new
|
||||
// process (["USER=go", "PWD=/tmp"]).
|
||||
func Exec(argv0 string, argv []string, envv []string) error {
|
||||
return syscall.Exec(argv0, argv, envv)
|
||||
}
|
||||
|
||||
// Lutimes sets the access and modification times tv on path. If path refers to
|
||||
// a symlink, it is not dereferenced and the timestamps are set on the symlink.
|
||||
// If tv is nil, the access and modification times are set to the current time.
|
||||
// Otherwise tv must contain exactly 2 elements, with access time as the first
|
||||
// element and modification time as the second element.
|
||||
func Lutimes(path string, tv []Timeval) error {
|
||||
if tv == nil {
|
||||
return UtimesNanoAt(AT_FDCWD, path, nil, AT_SYMLINK_NOFOLLOW)
|
||||
}
|
||||
if len(tv) != 2 {
|
||||
return EINVAL
|
||||
}
|
||||
ts := []Timespec{
|
||||
NsecToTimespec(TimevalToNsec(tv[0])),
|
||||
NsecToTimespec(TimevalToNsec(tv[1])),
|
||||
}
|
||||
return UtimesNanoAt(AT_FDCWD, path, ts, AT_SYMLINK_NOFOLLOW)
|
||||
}
|
||||
|
||||
// emptyIovec reports whether there are no bytes in the slice of Iovec.
|
||||
func emptyIovecs(iov []Iovec) bool {
|
||||
for i := range iov {
|
||||
if iov[i].Len > 0 {
|
||||
return false
|
||||
}
|
||||
}
|
||||
return true
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue