a88c31639b
* Passes conformance and functional tests. * Builds with GCC 4.4 compiler. Signed-off by: lpleahy git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12497 6f19259b-4bc3-4df7-8a09-765794883524
60 lines
1.7 KiB
C
60 lines
1.7 KiB
C
/** @file
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Implement the read 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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Read support routine for sockets
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The BslSocketRead routine is called indirectly by the read file
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system routine. This routine is typically used for SOCK_STREAM
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because it waits for receive data from the target system specified
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in the ::connect call.
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@param [in] pDescriptor Descriptor address for the file
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@param [in] pOffset File offset
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@param [in] LengthInBytes Number of bytes to read
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@param [in] pBuffer Address of the buffer to receive the data
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@return The number of bytes read or -1 if an error occurs.
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In the case of an error, ::errno contains more details.
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**/
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ssize_t
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BslSocketRead (
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struct __filedes *pDescriptor,
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off_t * pOffset,
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size_t LengthInBytes,
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void * pBuffer
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)
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{
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ssize_t BytesRead;
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//
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// Receive the data from the remote system
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//
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BytesRead = recvfrom ( pDescriptor->MyFD,
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pBuffer,
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LengthInBytes,
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0,
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NULL,
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NULL );
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//
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// Return the number of bytes read
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//
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return BytesRead;
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}
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