1 /** @file 2 Implement the shutdown API. 3 4 Copyright (c) 2011, Intel Corporation 5 All rights reserved. This program and the accompanying materials 6 are licensed and made available under the terms and conditions of the BSD License 7 which accompanies this distribution. The full text of the license may be found at 8 http://opensource.org/licenses/bsd-license.php 9 10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 12 13 **/ 14 15 #include <SocketInternals.h> 16 17 18 /** 19 Shutdown the socket receive and transmit operations 20 21 The shutdown routine stops socket receive and transmit operations. 22 23 The 24 <a href="http://pubs.opengroup.org/onlinepubs/9699919799/functions/shutdown.html">POSIX</a> 25 documentation is available online. 26 27 @param [in] s Socket file descriptor returned from ::socket. 28 29 @param [in] how Which operations to shutdown 30 31 @return This routine returns the zero (0) if successful or -1 when an 32 error occurs. In the latter case, ::errno contains more details. 33 34 **/ 35 int 36 shutdown ( 37 int s, 38 int how 39 ) 40 { 41 int RetVal; 42 EFI_SOCKET_PROTOCOL * pSocketProtocol; 43 EFI_STATUS Status; 44 45 // 46 // Assume failure 47 // 48 RetVal = -1; 49 50 // 51 // Locate the context for this socket 52 // 53 pSocketProtocol = BslFdToSocketProtocol ( s, NULL, &errno ); 54 if ( NULL != pSocketProtocol ) { 55 // 56 // Receive the data from the socket 57 // 58 Status = pSocketProtocol->pfnShutdown ( pSocketProtocol, 59 how, 60 &errno ); 61 if ( !EFI_ERROR ( Status )) { 62 // 63 // Success 64 // 65 RetVal = 0; 66 } 67 } 68 69 // 70 // Return the operation status 71 // 72 return RetVal; 73 } 74
