76 lines
1.7 KiB
Go
76 lines
1.7 KiB
Go
// socket_linux.go -- Socket handling specific to Linux.
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// Copyright 2010 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package syscall
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const SizeofSockaddrInet4 = 16
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const SizeofSockaddrInet6 = 28
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const SizeofSockaddrUnix = 110
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type RawSockaddrInet4 struct {
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Family uint16;
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Port uint16;
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Addr [4]byte /* in_addr */;
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Zero [8]uint8;
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}
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func (sa *RawSockaddrInet4) setLen() Socklen_t {
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return SizeofSockaddrInet4
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}
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type RawSockaddrInet6 struct {
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Family uint16;
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Port uint16;
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Flowinfo uint32;
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Addr [16]byte /* in6_addr */;
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Scope_id uint32;
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}
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func (sa *RawSockaddrInet6) setLen() Socklen_t {
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return SizeofSockaddrInet6
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}
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type RawSockaddrUnix struct {
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Family uint16;
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Path [108]int8;
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}
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func (sa *RawSockaddrUnix) setLen(int) {
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}
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func (sa *RawSockaddrUnix) getLen() (int, int) {
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if sa.Path[0] == 0 {
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// "Abstract" Unix domain socket.
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// Rewrite leading NUL as @ for textual display.
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// (This is the standard convention.)
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// Not friendly to overwrite in place,
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// but the callers below don't care.
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sa.Path[0] = '@';
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}
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// Assume path ends at NUL.
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// This is not technically the Linux semantics for
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// abstract Unix domain sockets--they are supposed
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// to be uninterpreted fixed-size binary blobs--but
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// everyone uses this convention.
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n := 0;
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for n < len(sa.Path) - 3 && sa.Path[n] != 0 {
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n++;
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}
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return n, 0
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}
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type RawSockaddr struct {
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Family uint16;
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Data [14]int8;
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}
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// BindToDevice binds the socket associated with fd to device.
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func BindToDevice(fd int, device string) (errno int) {
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return SetsockoptString(fd, SOL_SOCKET, SO_BINDTODEVICE, device)
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}
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