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git.proxmox.com Git - mirror_edk2.git/blob - StdLib/BsdSocketLib/getsockopt.c
2 Implement the getsockopt API.
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.
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.
13 #include <SocketInternals.h>
16 /** Get the socket options
19 <a href="http://pubs.opengroup.org/onlinepubs/9699919799/functions/getsockopt.html#">POSIX</a>
20 documentation is available online.
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
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.
37 OUT
void * __restrict option_value
,
38 IN OUT socklen_t
* __restrict option_len
42 EFI_SOCKET_PROTOCOL
* pSocketProtocol
;
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
,
55 // Return the operation stauts
56 OptionStatus
= ( 0 == errno
) ? 0 : -1;