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// 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.
package net
import (
"os"
"syscall"
"time"
)
// UnixConn is an implementation of the Conn interface for connections
// to Unix domain sockets.
type UnixConn struct {
conn
}
// ReadFromUnix reads a packet from c, copying the payload into b. It
// returns the number of bytes copied into b and the source address of
// the packet.
//
// ReadFromUnix can be made to time out and return an error with
// Timeout() == true after a fixed time limit; see SetDeadline and
// SetReadDeadline.
func (c *UnixConn) ReadFromUnix(b []byte) (int, *UnixAddr, error) {
return 0, nil, syscall.EPLAN9
}
// ReadFrom implements the PacketConn ReadFrom method.
func (c *UnixConn) ReadFrom(b []byte) (int, Addr, error) {
return 0, nil, syscall.EPLAN9
}
// ReadMsgUnix reads a packet from c, copying the payload into b and
// the associated out-of-band data into oob. It returns the number of
// bytes copied into b, the number of bytes copied into oob, the flags
// that were set on the packet, and the source address of the packet.
func (c *UnixConn) ReadMsgUnix(b, oob []byte) (n, oobn, flags int, addr *UnixAddr, err error) {
return 0, 0, 0, nil, syscall.EPLAN9
}
// WriteToUnix writes a packet to addr via c, copying the payload from b.
//
// WriteToUnix can be made to time out and return an error with
// Timeout() == true after a fixed time limit; see SetDeadline and
// SetWriteDeadline. On packet-oriented connections, write timeouts
// are rare.
func (c *UnixConn) WriteToUnix(b []byte, addr *UnixAddr) (int, error) {
return 0, syscall.EPLAN9
}
// WriteTo implements the PacketConn WriteTo method.
func (c *UnixConn) WriteTo(b []byte, addr Addr) (int, error) {
return 0, syscall.EPLAN9
}
// WriteMsgUnix writes a packet to addr via c, copying the payload
// from b and the associated out-of-band data from oob. It returns
// the number of payload and out-of-band bytes written.
func (c *UnixConn) WriteMsgUnix(b, oob []byte, addr *UnixAddr) (n, oobn int, err error) {
return 0, 0, syscall.EPLAN9
}
// CloseRead shuts down the reading side of the Unix domain connection.
// Most callers should just use Close.
func (c *UnixConn) CloseRead() error {
return syscall.EPLAN9
}
// CloseWrite shuts down the writing side of the Unix domain connection.
// Most callers should just use Close.
func (c *UnixConn) CloseWrite() error {
return syscall.EPLAN9
}
// DialUnix connects to the remote address raddr on the network net,
// which must be "unix", "unixgram" or "unixpacket". If laddr is not
// nil, it is used as the local address for the connection.
func DialUnix(net string, laddr, raddr *UnixAddr) (*UnixConn, error) {
return dialUnix(net, laddr, raddr, noDeadline)
}
func dialUnix(net string, laddr, raddr *UnixAddr, deadline time.Time) (*UnixConn, error) {
return nil, syscall.EPLAN9
}
// UnixListener is a Unix domain socket listener. Clients should
// typically use variables of type Listener instead of assuming Unix
// domain sockets.
type UnixListener struct{}
// ListenUnix announces on the Unix domain socket laddr and returns a
// Unix listener. The network net must be "unix" or "unixpacket".
func ListenUnix(net string, laddr *UnixAddr) (*UnixListener, error) {
return nil, syscall.EPLAN9
}
// AcceptUnix accepts the next incoming call and returns the new
// connection.
func (l *UnixListener) AcceptUnix() (*UnixConn, error) {
return nil, syscall.EPLAN9
}
// Accept implements the Accept method in the Listener interface; it
// waits for the next call and returns a generic Conn.
func (l *UnixListener) Accept() (Conn, error) {
return nil, syscall.EPLAN9
}
// Close stops listening on the Unix address. Already accepted
// connections are not closed.
func (l *UnixListener) Close() error {
return syscall.EPLAN9
}
// Addr returns the listener's network address.
func (l *UnixListener) Addr() Addr { return nil }
// SetDeadline sets the deadline associated with the listener.
// A zero time value disables the deadline.
func (l *UnixListener) SetDeadline(t time.Time) error {
return syscall.EPLAN9
}
// File returns a copy of the underlying os.File, set to blocking
// mode. It is the caller's responsibility to close f when finished.
// Closing l does not affect f, and closing f does not affect l.
//
// The returned os.File's file descriptor is different from the
// connection's. Attempting to change properties of the original
// using this duplicate may or may not have the desired effect.
func (l *UnixListener) File() (*os.File, error) {
return nil, syscall.EPLAN9
}
// ListenUnixgram listens for incoming Unix datagram packets addressed
// to the local address laddr. The network net must be "unixgram".
// The returned connection's ReadFrom and WriteTo methods can be used
// to receive and send packets with per-packet addressing.
func ListenUnixgram(net string, laddr *UnixAddr) (*UnixConn, error) {
return nil, syscall.EPLAN9
}
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