1 files changed, 0 insertions, 299 deletions
diff --git a/src/pkg/net/tcpsock_posix.go b/src/pkg/net/tcpsock_posix.go
deleted file mode 100644
index b79b115ca..000000000
--- a/src/pkg/net/tcpsock_posix.go
+++ /dev/null
@@ -1,299 +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 dragonfly freebsd linux nacl netbsd openbsd solaris windows
-
-package net
-
-import (
-	"io"
-	"os"
-	"syscall"
-	"time"
-)
-
-// BUG(rsc): On OpenBSD, listening on the "tcp" network does not listen for
-// both IPv4 and IPv6 connections. This is due to the fact that IPv4 traffic
-// will not be routed to an IPv6 socket - two separate sockets are required
-// if both AFs are to be supported. See inet6(4) on OpenBSD for details.
-
-func sockaddrToTCP(sa syscall.Sockaddr) Addr {
-	switch sa := sa.(type) {
-	case *syscall.SockaddrInet4:
-		return &TCPAddr{IP: sa.Addr[0:], Port: sa.Port}
-	case *syscall.SockaddrInet6:
-		return &TCPAddr{IP: sa.Addr[0:], Port: sa.Port, Zone: zoneToString(int(sa.ZoneId))}
-	}
-	return nil
-}
-
-func (a *TCPAddr) 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 *TCPAddr) isWildcard() bool {
-	if a == nil || a.IP == nil {
-		return true
-	}
-	return a.IP.IsUnspecified()
-}
-
-func (a *TCPAddr) sockaddr(family int) (syscall.Sockaddr, error) {
-	if a == nil {
-		return nil, nil
-	}
-	return ipToSockaddr(family, a.IP, a.Port, a.Zone)
-}
-
-// TCPConn is an implementation of the Conn interface for TCP network
-// connections.
-type TCPConn struct {
-	conn
-}
-
-func newTCPConn(fd *netFD) *TCPConn {
-	c := &TCPConn{conn{fd}}
-	c.SetNoDelay(true)
-	return c
-}
-
-// ReadFrom implements the io.ReaderFrom ReadFrom method.
-func (c *TCPConn) ReadFrom(r io.Reader) (int64, error) {
-	if n, err, handled := sendFile(c.fd, r); handled {
-		return n, err
-	}
-	return genericReadFrom(c, r)
-}
-
-// CloseRead shuts down the reading side of the TCP connection.
-// Most callers should just use Close.
-func (c *TCPConn) CloseRead() error {
-	if !c.ok() {
-		return syscall.EINVAL
-	}
-	return c.fd.closeRead()
-}
-
-// CloseWrite shuts down the writing side of the TCP connection.
-// Most callers should just use Close.
-func (c *TCPConn) CloseWrite() error {
-	if !c.ok() {
-		return syscall.EINVAL
-	}
-	return c.fd.closeWrite()
-}
-
-// SetLinger sets the behavior of Close on a connection which still
-// has data waiting to be sent or to be acknowledged.
-//
-// If sec < 0 (the default), the operating system finishes sending the
-// data in the background.
-//
-// If sec == 0, the operating system discards any unsent or
-// unacknowledged data.
-//
-// If sec > 0, the data is sent in the background as with sec < 0. On
-// some operating systems after sec seconds have elapsed any remaining
-// unsent data may be discarded.
-func (c *TCPConn) SetLinger(sec int) error {
-	if !c.ok() {
-		return syscall.EINVAL
-	}
-	return setLinger(c.fd, sec)
-}
-
-// SetKeepAlive sets whether the operating system should send
-// keepalive messages on the connection.
-func (c *TCPConn) SetKeepAlive(keepalive bool) error {
-	if !c.ok() {
-		return syscall.EINVAL
-	}
-	return setKeepAlive(c.fd, keepalive)
-}
-
-// SetKeepAlivePeriod sets period between keep alives.
-func (c *TCPConn) SetKeepAlivePeriod(d time.Duration) error {
-	if !c.ok() {
-		return syscall.EINVAL
-	}
-	return setKeepAlivePeriod(c.fd, d)
-}
-
-// SetNoDelay controls whether the operating system should delay
-// packet transmission in hopes of sending fewer packets (Nagle's
-// algorithm).  The default is true (no delay), meaning that data is
-// sent as soon as possible after a Write.
-func (c *TCPConn) SetNoDelay(noDelay bool) error {
-	if !c.ok() {
-		return syscall.EINVAL
-	}
-	return setNoDelay(c.fd, noDelay)
-}
-
-// DialTCP connects to the remote address raddr on the network net,
-// which must be "tcp", "tcp4", or "tcp6".  If laddr is not nil, it is
-// used as the local address for the connection.
-func DialTCP(net string, laddr, raddr *TCPAddr) (*TCPConn, error) {
-	switch net {
-	case "tcp", "tcp4", "tcp6":
-	default:
-		return nil, &OpError{Op: "dial", Net: net, Addr: raddr, Err: UnknownNetworkError(net)}
-	}
-	if raddr == nil {
-		return nil, &OpError{Op: "dial", Net: net, Addr: nil, Err: errMissingAddress}
-	}
-	return dialTCP(net, laddr, raddr, noDeadline)
-}
-
-func dialTCP(net string, laddr, raddr *TCPAddr, deadline time.Time) (*TCPConn, error) {
-	fd, err := internetSocket(net, laddr, raddr, deadline, syscall.SOCK_STREAM, 0, "dial", sockaddrToTCP)
-
-	// TCP has a rarely used mechanism called a 'simultaneous connection' in
-	// which Dial("tcp", addr1, addr2) run on the machine at addr1 can
-	// connect to a simultaneous Dial("tcp", addr2, addr1) run on the machine
-	// at addr2, without either machine executing Listen.  If laddr == nil,
-	// it means we want the kernel to pick an appropriate originating local
-	// address.  Some Linux kernels cycle blindly through a fixed range of
-	// local ports, regardless of destination port.  If a kernel happens to
-	// pick local port 50001 as the source for a Dial("tcp", "", "localhost:50001"),
-	// then the Dial will succeed, having simultaneously connected to itself.
-	// This can only happen when we are letting the kernel pick a port (laddr == nil)
-	// and when there is no listener for the destination address.
-	// It's hard to argue this is anything other than a kernel bug.  If we
-	// see this happen, rather than expose the buggy effect to users, we
-	// close the fd and try again.  If it happens twice more, we relent and
-	// use the result.  See also:
-	//	http://golang.org/issue/2690
-	//	http://stackoverflow.com/questions/4949858/
-	//
-	// The opposite can also happen: if we ask the kernel to pick an appropriate
-	// originating local address, sometimes it picks one that is already in use.
-	// So if the error is EADDRNOTAVAIL, we have to try again too, just for
-	// a different reason.
-	//
-	// The kernel socket code is no doubt enjoying watching us squirm.
-	for i := 0; i < 2 && (laddr == nil || laddr.Port == 0) && (selfConnect(fd, err) || spuriousENOTAVAIL(err)); i++ {
-		if err == nil {
-			fd.Close()
-		}
-		fd, err = internetSocket(net, laddr, raddr, deadline, syscall.SOCK_STREAM, 0, "dial", sockaddrToTCP)
-	}
-
-	if err != nil {
-		return nil, &OpError{Op: "dial", Net: net, Addr: raddr, Err: err}
-	}
-	return newTCPConn(fd), nil
-}
-
-func selfConnect(fd *netFD, err error) bool {
-	// If the connect failed, we clearly didn't connect to ourselves.
-	if err != nil {
-		return false
-	}
-
-	// The socket constructor can return an fd with raddr nil under certain
-	// unknown conditions. The errors in the calls there to Getpeername
-	// are discarded, but we can't catch the problem there because those
-	// calls are sometimes legally erroneous with a "socket not connected".
-	// Since this code (selfConnect) is already trying to work around
-	// a problem, we make sure if this happens we recognize trouble and
-	// ask the DialTCP routine to try again.
-	// TODO: try to understand what's really going on.
-	if fd.laddr == nil || fd.raddr == nil {
-		return true
-	}
-	l := fd.laddr.(*TCPAddr)
-	r := fd.raddr.(*TCPAddr)
-	return l.Port == r.Port && l.IP.Equal(r.IP)
-}
-
-func spuriousENOTAVAIL(err error) bool {
-	e, ok := err.(*OpError)
-	return ok && e.Err == syscall.EADDRNOTAVAIL
-}
-
-// TCPListener is a TCP network listener.  Clients should typically
-// use variables of type Listener instead of assuming TCP.
-type TCPListener struct {
-	fd *netFD
-}
-
-// AcceptTCP accepts the next incoming call and returns the new
-// connection.
-func (l *TCPListener) AcceptTCP() (*TCPConn, error) {
-	if l == nil || l.fd == nil {
-		return nil, syscall.EINVAL
-	}
-	fd, err := l.fd.accept(sockaddrToTCP)
-	if err != nil {
-		return nil, err
-	}
-	return newTCPConn(fd), nil
-}
-
-// Accept implements the Accept method in the Listener interface; it
-// waits for the next call and returns a generic Conn.
-func (l *TCPListener) Accept() (Conn, error) {
-	c, err := l.AcceptTCP()
-	if err != nil {
-		return nil, err
-	}
-	return c, nil
-}
-
-// Close stops listening on the TCP address.
-// Already Accepted connections are not closed.
-func (l *TCPListener) Close() error {
-	if l == nil || l.fd == nil {
-		return syscall.EINVAL
-	}
-	return l.fd.Close()
-}
-
-// Addr returns the listener's network address, a *TCPAddr.
-func (l *TCPListener) Addr() Addr { return l.fd.laddr }
-
-// SetDeadline sets the deadline associated with the listener.
-// A zero time value disables the deadline.
-func (l *TCPListener) SetDeadline(t time.Time) error {
-	if l == nil || l.fd == nil {
-		return syscall.EINVAL
-	}
-	return l.fd.setDeadline(t)
-}
-
-// 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 *TCPListener) File() (f *os.File, err error) { return l.fd.dup() }
-
-// ListenTCP announces on the TCP address laddr and returns a TCP
-// listener.  Net must be "tcp", "tcp4", or "tcp6".  If laddr has a
-// port of 0, ListenTCP will choose an available port.  The caller can
-// use the Addr method of TCPListener to retrieve the chosen address.
-func ListenTCP(net string, laddr *TCPAddr) (*TCPListener, error) {
-	switch net {
-	case "tcp", "tcp4", "tcp6":
-	default:
-		return nil, &OpError{Op: "listen", Net: net, Addr: laddr, Err: UnknownNetworkError(net)}
-	}
-	if laddr == nil {
-		laddr = &TCPAddr{}
-	}
-	fd, err := internetSocket(net, laddr, nil, noDeadline, syscall.SOCK_STREAM, 0, "listen", sockaddrToTCP)
-	if err != nil {
-		return nil, &OpError{Op: "listen", Net: net, Addr: laddr, Err: err}
-	}
-	return &TCPListener{fd}, nil
-}