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git.proxmox.com Git - mirror_edk2.git/blob - StdLib/BsdSocketLib/getsockopt.c
47b7c6fb34eab3f6160cb7151fed02b3916a7049
2 Implement the getsockopt API.
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
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.
15 #include <SocketInternals.h>
19 Get the socket options
22 <a href="http://pubs.opengroup.org/onlinepubs/9699919799/functions/getsockopt.html#">POSIX</a>
23 documentation is available online.
25 @param [in] s Socket file descriptor returned from ::socket.
26 @param [in] level Option protocol level
27 @param [in] option_name Name of the option
28 @param [out] option_value Buffer to receive the option value
29 @param [in,out] option_len Length of the buffer in bytes,
30 upon return length of the option value in bytes
32 @return This routine returns zero (0) if successful or -1 when an error occurs.
33 In the case of an error, ::errno contains more details.
41 OUT
void * __restrict option_value
,
42 IN OUT socklen_t
* __restrict option_len
46 EFI_SOCKET_PROTOCOL
* pSocketProtocol
;
50 // Locate the context for this socket
52 pSocketProtocol
= BslFdToSocketProtocol ( s
, NULL
, &errno
);
53 if ( NULL
!= pSocketProtocol
) {
55 // Get the socket option
57 Status
= pSocketProtocol
->pfnOptionGet ( pSocketProtocol
,
66 // Return the operation stauts
68 OptionStatus
= ( 0 == errno
) ? 0 : -1;