code review 5294074: src/pkg/[n-z]*: gofix -r error

src/pkg/net/tcpsock_plan9.go

 // 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.
 
 // TCP for Plan 9
 
 package net
 
+import (
+        "os"
+)
+
 // TCPConn is an implementation of the Conn interface
 // for TCP network connections.
 type TCPConn struct {
         plan9Conn
+}
+
+// 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 os.EINVAL
+        }
+        return os.EPLAN9
+}
+
+// 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 os.EINVAL
+        }
+        return os.EPLAN9
 }
 
 // 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) (c *TCPConn, err error) {
         switch net {
         case "tcp", "tcp4", "tcp6":
         default:
                 return nil, UnknownNetworkError(net)
@@ skipping 27 matching lines @@
         }
         if laddr == nil {
                 return nil, &OpError{"listen", "tcp", nil, errMissingAddress}
         }
         l1, err := listenPlan9(net, laddr)
         if err != nil {
                 return
         }
         return &TCPListener{*l1}, nil
 }