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authorLibravatar Terin Stock <terinjokes@gmail.com>2025-03-09 17:47:56 +0100
committerLibravatar Terin Stock <terinjokes@gmail.com>2025-03-10 01:59:49 +0100
commit3ac1ee16f377d31a0fb80c8dae28b6239ac4229e (patch)
treef61faa581feaaeaba2542b9f2b8234a590684413 /vendor/golang.org/x/sys/unix/syscall_unix.go
parent[chore] update URLs to forked source (diff)
downloadgotosocial-3ac1ee16f377d31a0fb80c8dae28b6239ac4229e.tar.xz
[chore] remove vendor
Diffstat (limited to 'vendor/golang.org/x/sys/unix/syscall_unix.go')
-rw-r--r--vendor/golang.org/x/sys/unix/syscall_unix.go615
1 files changed, 0 insertions, 615 deletions
diff --git a/vendor/golang.org/x/sys/unix/syscall_unix.go b/vendor/golang.org/x/sys/unix/syscall_unix.go
deleted file mode 100644
index 4e92e5aa4..000000000
--- a/vendor/golang.org/x/sys/unix/syscall_unix.go
+++ /dev/null
@@ -1,615 +0,0 @@
-// 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
-
-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 Mmap(fd int, offset int64, length int, prot int, flags int) (data []byte, err error) {
- return mapper.Mmap(fd, offset, length, prot, flags)
-}
-
-func Munmap(b []byte) (err error) {
- return mapper.Munmap(b)
-}
-
-func MmapPtr(fd int, offset int64, addr unsafe.Pointer, length uintptr, prot int, flags int) (ret unsafe.Pointer, err error) {
- xaddr, err := mapper.mmap(uintptr(addr), length, prot, flags, fd, offset)
- return unsafe.Pointer(xaddr), err
-}
-
-func MunmapPtr(addr unsafe.Pointer, length uintptr) (err error) {
- return mapper.munmap(uintptr(addr), length)
-}
-
-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
-}
-
-// Recvmsg receives a message from a socket using the recvmsg system call. The
-// received non-control data will be written to p, and any "out of band"
-// control data will be written to oob. The flags are passed to recvmsg.
-//
-// The results are:
-// - n is the number of non-control data bytes read into p
-// - oobn is the number of control data bytes read into oob; this may be interpreted using [ParseSocketControlMessage]
-// - recvflags is flags returned by recvmsg
-// - from is the address of the sender
-//
-// If the underlying socket type is not SOCK_DGRAM, a received message
-// containing oob data and a single '\0' of non-control data is treated as if
-// the message contained only control data, i.e. n will be zero on 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. This function is equivalent to Recvmsg, but non-control data read is
-// scattered into the buffers slices.
-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
-}
-
-// Sendmsg sends a message on a socket to an address using the sendmsg system
-// call. This function is equivalent to SendmsgN, but does not return the
-// number of bytes actually sent.
-func Sendmsg(fd int, p, oob []byte, to Sockaddr, flags int) (err error) {
- _, err = SendmsgN(fd, p, oob, to, flags)
- return
-}
-
-// SendmsgN sends a message on a socket to an address using the sendmsg system
-// call. p contains the non-control data to send, and oob contains the "out of
-// band" control data. The flags are passed to sendmsg. The number of
-// non-control bytes actually written to the socket is returned.
-//
-// Some socket types do not support sending control data without accompanying
-// non-control data. If p is empty, and oob contains control data, and the
-// underlying socket type is not SOCK_DGRAM, p will be treated as containing a
-// single '\0' and the return value will indicate zero bytes sent.
-//
-// The Go function Recvmsg, if called with an empty p and a non-empty oob,
-// will read and ignore this additional '\0'. If the message is received by
-// code that does not use Recvmsg, or that does not use Go at all, that code
-// will need to be written to expect and ignore the additional '\0'.
-//
-// If you need to send non-empty oob with p actually empty, and if the
-// underlying socket type supports it, you can do so via a raw system call as
-// follows:
-//
-// msg := &unix.Msghdr{
-// Control: &oob[0],
-// }
-// msg.SetControllen(len(oob))
-// n, _, errno := unix.Syscall(unix.SYS_SENDMSG, uintptr(fd), uintptr(unsafe.Pointer(msg)), flags)
-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. This function is equivalent to SendmsgN, but the non-control
-// data is gathered from buffers.
-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 (flag&O_NONBLOCK != 0) == nonblocking {
- return nil
- }
- 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)
-}
-
-// emptyIovecs 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
-}
-
-// Setrlimit sets a resource limit.
-func Setrlimit(resource int, rlim *Rlimit) error {
- // Just call the syscall version, because as of Go 1.21
- // it will affect starting a new process.
- return syscall.Setrlimit(resource, (*syscall.Rlimit)(rlim))
-}