1 files changed, 0 insertions, 203 deletions
diff --git a/src/pkg/net/udpsock_plan9.go b/src/pkg/net/udpsock_plan9.go
deleted file mode 100644
index 510ac5e4a..000000000
--- a/src/pkg/net/udpsock_plan9.go
+++ /dev/null
@@ -1,203 +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.
-
-package net
-
-import (
-	"errors"
-	"os"
-	"syscall"
-	"time"
-)
-
-// UDPConn is the implementation of the Conn and PacketConn interfaces
-// for UDP network connections.
-type UDPConn struct {
-	conn
-}
-
-func newUDPConn(fd *netFD) *UDPConn { return &UDPConn{conn{fd}} }
-
-// ReadFromUDP reads a UDP packet from c, copying the payload into b.
-// It returns the number of bytes copied into b and the return address
-// that was on the packet.
-//
-// ReadFromUDP can be made to time out and return an error with
-// Timeout() == true after a fixed time limit; see SetDeadline and
-// SetReadDeadline.
-func (c *UDPConn) ReadFromUDP(b []byte) (n int, addr *UDPAddr, err error) {
-	if !c.ok() || c.fd.data == nil {
-		return 0, nil, syscall.EINVAL
-	}
-	buf := make([]byte, udpHeaderSize+len(b))
-	m, err := c.fd.data.Read(buf)
-	if err != nil {
-		return
-	}
-	if m < udpHeaderSize {
-		return 0, nil, errors.New("short read reading UDP header")
-	}
-	buf = buf[:m]
-
-	h, buf := unmarshalUDPHeader(buf)
-	n = copy(b, buf)
-	return n, &UDPAddr{IP: h.raddr, Port: int(h.rport)}, nil
-}
-
-// ReadFrom implements the PacketConn ReadFrom method.
-func (c *UDPConn) ReadFrom(b []byte) (int, Addr, error) {
-	if !c.ok() {
-		return 0, nil, syscall.EINVAL
-	}
-	return c.ReadFromUDP(b)
-}
-
-// ReadMsgUDP 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 *UDPConn) ReadMsgUDP(b, oob []byte) (n, oobn, flags int, addr *UDPAddr, err error) {
-	return 0, 0, 0, nil, syscall.EPLAN9
-}
-
-// WriteToUDP writes a UDP packet to addr via c, copying the payload
-// from b.
-//
-// WriteToUDP 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 *UDPConn) WriteToUDP(b []byte, addr *UDPAddr) (int, error) {
-	if !c.ok() || c.fd.data == nil {
-		return 0, syscall.EINVAL
-	}
-	if addr == nil {
-		return 0, &OpError{Op: "write", Net: c.fd.dir, Addr: nil, Err: errMissingAddress}
-	}
-	h := new(udpHeader)
-	h.raddr = addr.IP.To16()
-	h.laddr = c.fd.laddr.(*UDPAddr).IP.To16()
-	h.ifcaddr = IPv6zero // ignored (receive only)
-	h.rport = uint16(addr.Port)
-	h.lport = uint16(c.fd.laddr.(*UDPAddr).Port)
-
-	buf := make([]byte, udpHeaderSize+len(b))
-	i := copy(buf, h.Bytes())
-	copy(buf[i:], b)
-	return c.fd.data.Write(buf)
-}
-
-// WriteTo implements the PacketConn WriteTo method.
-func (c *UDPConn) WriteTo(b []byte, addr Addr) (int, error) {
-	if !c.ok() {
-		return 0, syscall.EINVAL
-	}
-	a, ok := addr.(*UDPAddr)
-	if !ok {
-		return 0, &OpError{"write", c.fd.dir, addr, syscall.EINVAL}
-	}
-	return c.WriteToUDP(b, a)
-}
-
-// WriteMsgUDP 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 *UDPConn) WriteMsgUDP(b, oob []byte, addr *UDPAddr) (n, oobn int, err error) {
-	return 0, 0, syscall.EPLAN9
-}
-
-// DialUDP connects to the remote address raddr on the network net,
-// which must be "udp", "udp4", or "udp6".  If laddr is not nil, it is
-// used as the local address for the connection.
-func DialUDP(net string, laddr, raddr *UDPAddr) (*UDPConn, error) {
-	return dialUDP(net, laddr, raddr, noDeadline)
-}
-
-func dialUDP(net string, laddr, raddr *UDPAddr, deadline time.Time) (*UDPConn, error) {
-	if !deadline.IsZero() {
-		panic("net.dialUDP: deadline not implemented on Plan 9")
-	}
-	switch net {
-	case "udp", "udp4", "udp6":
-	default:
-		return nil, UnknownNetworkError(net)
-	}
-	if raddr == nil {
-		return nil, &OpError{"dial", net, nil, errMissingAddress}
-	}
-	fd, err := dialPlan9(net, laddr, raddr)
-	if err != nil {
-		return nil, err
-	}
-	return newUDPConn(fd), nil
-}
-
-const udpHeaderSize = 16*3 + 2*2
-
-type udpHeader struct {
-	raddr, laddr, ifcaddr IP
-	rport, lport          uint16
-}
-
-func (h *udpHeader) Bytes() []byte {
-	b := make([]byte, udpHeaderSize)
-	i := 0
-	i += copy(b[i:i+16], h.raddr)
-	i += copy(b[i:i+16], h.laddr)
-	i += copy(b[i:i+16], h.ifcaddr)
-	b[i], b[i+1], i = byte(h.rport>>8), byte(h.rport), i+2
-	b[i], b[i+1], i = byte(h.lport>>8), byte(h.lport), i+2
-	return b
-}
-
-func unmarshalUDPHeader(b []byte) (*udpHeader, []byte) {
-	h := new(udpHeader)
-	h.raddr, b = IP(b[:16]), b[16:]
-	h.laddr, b = IP(b[:16]), b[16:]
-	h.ifcaddr, b = IP(b[:16]), b[16:]
-	h.rport, b = uint16(b[0])<<8|uint16(b[1]), b[2:]
-	h.lport, b = uint16(b[0])<<8|uint16(b[1]), b[2:]
-	return h, b
-}
-
-// ListenUDP listens for incoming UDP packets addressed to the local
-// address laddr.  Net must be "udp", "udp4", or "udp6".  If laddr has
-// a port of 0, ListenUDP will choose an available port.
-// The LocalAddr method of the returned UDPConn can be used to
-// discover the port.  The returned connection's ReadFrom and WriteTo
-// methods can be used to receive and send UDP packets with per-packet
-// addressing.
-func ListenUDP(net string, laddr *UDPAddr) (*UDPConn, error) {
-	switch net {
-	case "udp", "udp4", "udp6":
-	default:
-		return nil, UnknownNetworkError(net)
-	}
-	if laddr == nil {
-		laddr = &UDPAddr{}
-	}
-	l, err := listenPlan9(net, laddr)
-	if err != nil {
-		return nil, err
-	}
-	_, err = l.ctl.WriteString("headers")
-	if err != nil {
-		return nil, err
-	}
-	l.data, err = os.OpenFile(l.dir+"/data", os.O_RDWR, 0)
-	if err != nil {
-		return nil, err
-	}
-	fd, err := l.netFD()
-	return newUDPConn(fd), err
-}
-
-// ListenMulticastUDP listens for incoming multicast UDP packets
-// addressed to the group address gaddr on ifi, which specifies the
-// interface to join.  ListenMulticastUDP uses default multicast
-// interface if ifi is nil.
-func ListenMulticastUDP(net string, ifi *Interface, gaddr *UDPAddr) (*UDPConn, error) {
-	return nil, syscall.EPLAN9
-}