mirror of https://github.com/acidanthera/audk.git
66 lines
2.1 KiB
C
66 lines
2.1 KiB
C
/** @file
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Implement the listen API.
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Copyright (c) 2011, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <SocketInternals.h>
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/**
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Establish the known port to listen for network connections.
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The ::listen routine places the port into a state that enables connection
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attempts. Connections are placed into FIFO order in a queue to be serviced
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by the application. The application calls the ::accept routine to remove
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the next connection from the queue and get the associated socket. The
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<a href="http://pubs.opengroup.org/onlinepubs/9699919799/functions/listen.html">POSIX</a>
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documentation for the bind routine is available online for reference.
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@param [in] s Socket file descriptor returned from ::socket.
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@param [in] backlog backlog specifies the maximum FIFO depth for the connections
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waiting for the application to call accept. Connection attempts
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received while the queue is full are refused.
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@return The listen routine returns zero (0) if successful and -1 upon failure.
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**/
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int
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listen (
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IN int s,
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IN int backlog
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)
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{
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int ListenStatus;
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EFI_SOCKET_PROTOCOL * pSocketProtocol;
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EFI_STATUS Status;
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//
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// Locate the context for this socket
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//
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pSocketProtocol = BslFdToSocketProtocol ( s, NULL, &errno );
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if ( NULL != pSocketProtocol ) {
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//
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// Enable connections on the known port
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//
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Status = pSocketProtocol->pfnListen ( pSocketProtocol,
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backlog,
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&errno );
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}
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//
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// Return the operation stauts
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//
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ListenStatus = ( 0 == errno ) ? 0 : -1;
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return ListenStatus;
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}
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