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