| 1 | /** @file
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| 2 | Implement the getsockopt API.
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| 3 |
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| 4 | Copyright (c) 2011 - 2014, Intel Corporation. All rights reserved.<BR>
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| 5 | This program and the accompanying materials are licensed and made available under
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| 6 | the terms and conditions of the BSD License that accompanies this distribution.
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| 7 | The full text of the license may be found at
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| 8 | http://opensource.org/licenses/bsd-license.php.
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| 9 |
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| 10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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| 11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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| 12 | **/
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| 13 | #include <SocketInternals.h>
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| 14 |
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| 15 |
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| 16 | /** Get the socket options
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| 17 |
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| 18 | The
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| 19 | <a href="http://pubs.opengroup.org/onlinepubs/9699919799/functions/getsockopt.html#">POSIX</a>
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| 20 | documentation is available online.
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| 21 |
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| 22 | @param [in] s Socket file descriptor returned from ::socket.
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| 23 | @param [in] level Option protocol level
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| 24 | @param [in] option_name Name of the option
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| 25 | @param [out] option_value Buffer to receive the option value
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| 26 | @param [in,out] option_len Length of the buffer in bytes,
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| 27 | upon return length of the option value in bytes
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| 28 |
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| 29 | @return This routine returns zero (0) if successful or -1 when an error occurs.
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| 30 | In the case of an error, ::errno contains more details.
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| 31 | **/
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| 32 | int
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| 33 | getsockopt (
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| 34 | IN int s,
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| 35 | IN int level,
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| 36 | IN int option_name,
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| 37 | OUT void * __restrict option_value,
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| 38 | IN OUT socklen_t * __restrict option_len
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| 39 | )
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| 40 | {
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| 41 | int OptionStatus;
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| 42 | EFI_SOCKET_PROTOCOL * pSocketProtocol;
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| 43 |
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| 44 | // Locate the context for this socket
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| 45 | pSocketProtocol = BslFdToSocketProtocol ( s, NULL, &errno );
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| 46 | if ( NULL != pSocketProtocol ) {
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| 47 | // Get the socket option
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| 48 | (void) pSocketProtocol->pfnOptionGet ( pSocketProtocol,
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| 49 | level,
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| 50 | option_name,
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| 51 | option_value,
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| 52 | option_len,
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| 53 | &errno );
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| 54 | }
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| 55 | // Return the operation stauts
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| 56 | OptionStatus = ( 0 == errno ) ? 0 : -1;
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| 57 | return OptionStatus;
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| 58 | }
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