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Diffstat (limited to 'gcc-4.8.1/libgo/go/net/udpsock_posix.go')
-rw-r--r--gcc-4.8.1/libgo/go/net/udpsock_posix.go263
1 files changed, 0 insertions, 263 deletions
diff --git a/gcc-4.8.1/libgo/go/net/udpsock_posix.go b/gcc-4.8.1/libgo/go/net/udpsock_posix.go
deleted file mode 100644
index 385cd902e..000000000
--- a/gcc-4.8.1/libgo/go/net/udpsock_posix.go
+++ /dev/null
@@ -1,263 +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.
-
-// +build darwin freebsd linux netbsd openbsd windows
-
-// UDP sockets for POSIX
-
-package net
-
-import (
- "syscall"
- "time"
-)
-
-func sockaddrToUDP(sa syscall.Sockaddr) Addr {
- switch sa := sa.(type) {
- case *syscall.SockaddrInet4:
- return &UDPAddr{IP: sa.Addr[0:], Port: sa.Port}
- case *syscall.SockaddrInet6:
- return &UDPAddr{IP: sa.Addr[0:], Port: sa.Port, Zone: zoneToString(int(sa.ZoneId))}
- }
- return nil
-}
-
-func (a *UDPAddr) family() int {
- if a == nil || len(a.IP) <= IPv4len {
- return syscall.AF_INET
- }
- if a.IP.To4() != nil {
- return syscall.AF_INET
- }
- return syscall.AF_INET6
-}
-
-func (a *UDPAddr) isWildcard() bool {
- if a == nil || a.IP == nil {
- return true
- }
- return a.IP.IsUnspecified()
-}
-
-func (a *UDPAddr) sockaddr(family int) (syscall.Sockaddr, error) {
- return ipToSockaddr(family, a.IP, a.Port, a.Zone)
-}
-
-func (a *UDPAddr) toAddr() sockaddr {
- if a == nil { // nil *UDPAddr
- return nil // nil interface
- }
- return a
-}
-
-// 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() {
- return 0, nil, syscall.EINVAL
- }
- n, sa, err := c.fd.ReadFrom(b)
- switch sa := sa.(type) {
- case *syscall.SockaddrInet4:
- addr = &UDPAddr{IP: sa.Addr[0:], Port: sa.Port}
- case *syscall.SockaddrInet6:
- addr = &UDPAddr{IP: sa.Addr[0:], Port: sa.Port, Zone: zoneToString(int(sa.ZoneId))}
- }
- return
-}
-
-// ReadFrom implements the PacketConn ReadFrom method.
-func (c *UDPConn) ReadFrom(b []byte) (int, Addr, error) {
- if !c.ok() {
- return 0, nil, syscall.EINVAL
- }
- n, addr, err := c.ReadFromUDP(b)
- return n, addr.toAddr(), err
-}
-
-// ReadMsgUDP reads a packet from c, copying the payload into b and
-// the associdated 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) {
- if !c.ok() {
- return 0, 0, 0, nil, syscall.EINVAL
- }
- var sa syscall.Sockaddr
- n, oobn, flags, sa, err = c.fd.ReadMsg(b, oob)
- switch sa := sa.(type) {
- case *syscall.SockaddrInet4:
- addr = &UDPAddr{IP: sa.Addr[0:], Port: sa.Port}
- case *syscall.SockaddrInet6:
- addr = &UDPAddr{IP: sa.Addr[0:], Port: sa.Port, Zone: zoneToString(int(sa.ZoneId))}
- }
- return
-}
-
-// 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() {
- return 0, syscall.EINVAL
- }
- if c.fd.isConnected {
- return 0, &OpError{"write", c.fd.net, addr, ErrWriteToConnected}
- }
- sa, err := addr.sockaddr(c.fd.family)
- if err != nil {
- return 0, &OpError{"write", c.fd.net, addr, err}
- }
- return c.fd.WriteTo(b, sa)
-}
-
-// 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.net, 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) {
- if !c.ok() {
- return 0, 0, syscall.EINVAL
- }
- if c.fd.isConnected {
- return 0, 0, &OpError{"write", c.fd.net, addr, ErrWriteToConnected}
- }
- sa, err := addr.sockaddr(c.fd.family)
- if err != nil {
- return 0, 0, &OpError{"write", c.fd.net, addr, err}
- }
- return c.fd.WriteMsg(b, oob, sa)
-}
-
-// 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) {
- switch net {
- case "udp", "udp4", "udp6":
- default:
- return nil, UnknownNetworkError(net)
- }
- if raddr == nil {
- return nil, &OpError{"dial", net, nil, errMissingAddress}
- }
- fd, err := internetSocket(net, laddr.toAddr(), raddr.toAddr(), deadline, syscall.SOCK_DGRAM, 0, "dial", sockaddrToUDP)
- if err != nil {
- return nil, err
- }
- return newUDPConn(fd), nil
-}
-
-// ListenUDP listens for incoming UDP packets addressed to the
-// local address laddr. The returned connection c'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{}
- }
- fd, err := internetSocket(net, laddr.toAddr(), nil, noDeadline, syscall.SOCK_DGRAM, 0, "listen", sockaddrToUDP)
- if err != nil {
- return nil, err
- }
- return newUDPConn(fd), nil
-}
-
-// 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) {
- switch net {
- case "udp", "udp4", "udp6":
- default:
- return nil, UnknownNetworkError(net)
- }
- if gaddr == nil || gaddr.IP == nil {
- return nil, &OpError{"listen", net, nil, errMissingAddress}
- }
- fd, err := internetSocket(net, gaddr.toAddr(), nil, noDeadline, syscall.SOCK_DGRAM, 0, "listen", sockaddrToUDP)
- if err != nil {
- return nil, err
- }
- c := newUDPConn(fd)
- if ip4 := gaddr.IP.To4(); ip4 != nil {
- if err := listenIPv4MulticastUDP(c, ifi, ip4); err != nil {
- c.Close()
- return nil, &OpError{"listen", net, &IPAddr{IP: ip4}, err}
- }
- } else {
- if err := listenIPv6MulticastUDP(c, ifi, gaddr.IP); err != nil {
- c.Close()
- return nil, &OpError{"listen", net, &IPAddr{IP: gaddr.IP}, err}
- }
- }
- return c, nil
-}
-
-func listenIPv4MulticastUDP(c *UDPConn, ifi *Interface, ip IP) error {
- if ifi != nil {
- if err := setIPv4MulticastInterface(c.fd, ifi); err != nil {
- return err
- }
- }
- if err := setIPv4MulticastLoopback(c.fd, false); err != nil {
- return err
- }
- if err := joinIPv4Group(c.fd, ifi, ip); err != nil {
- return err
- }
- return nil
-}
-
-func listenIPv6MulticastUDP(c *UDPConn, ifi *Interface, ip IP) error {
- if ifi != nil {
- if err := setIPv6MulticastInterface(c.fd, ifi); err != nil {
- return err
- }
- }
- if err := setIPv6MulticastLoopback(c.fd, false); err != nil {
- return err
- }
- if err := joinIPv6Group(c.fd, ifi, ip); err != nil {
- return err
- }
- return nil
-}