1 /** @file 2 Implement the getsockopt API. 3 4 Copyright (c) 2011 - 2014, Intel Corporation. All rights reserved.<BR> 5 This program and the accompanying materials are licensed and made available under 6 the terms and conditions of the BSD License that accompanies this distribution. 7 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 #include <SocketInternals.h> 14 15 16 /** Get the socket options 17 18 The 19 <a href="http://pubs.opengroup.org/onlinepubs/9699919799/functions/getsockopt.html#">POSIX</a> 20 documentation is available online. 21 22 @param [in] s Socket file descriptor returned from ::socket. 23 @param [in] level Option protocol level 24 @param [in] option_name Name of the option 25 @param [out] option_value Buffer to receive the option value 26 @param [in,out] option_len Length of the buffer in bytes, 27 upon return length of the option value in bytes 28 29 @return This routine returns zero (0) if successful or -1 when an error occurs. 30 In the case of an error, ::errno contains more details. 31 **/ 32 int 33 getsockopt ( 34 IN int s, 35 IN int level, 36 IN int option_name, 37 OUT void * __restrict option_value, 38 IN OUT socklen_t * __restrict option_len 39 ) 40 { 41 int OptionStatus; 42 EFI_SOCKET_PROTOCOL * pSocketProtocol; 43 44 // Locate the context for this socket 45 pSocketProtocol = BslFdToSocketProtocol ( s, NULL, &errno ); 46 if ( NULL != pSocketProtocol ) { 47 // Get the socket option 48 (void) pSocketProtocol->pfnOptionGet ( pSocketProtocol, 49 level, 50 option_name, 51 option_value, 52 option_len, 53 &errno ); 54 } 55 // Return the operation stauts 56 OptionStatus = ( 0 == errno ) ? 0 : -1; 57 return OptionStatus; 58 } 59
