94 lines
6.1 KiB
C++
94 lines
6.1 KiB
C++
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/*
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** Command & Conquer Renegade(tm)
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** Copyright 2025 Electronic Arts Inc.
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**
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** This program is free software: you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation, either version 3 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/***********************************************************************************************
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*** C O N F I D E N T I A L --- W E S T W O O D S T U D I O S ***
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***********************************************************************************************
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* *
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* Project Name : Command & Conquer *
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* *
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* $Archive:: /Commando/Library/CRCSTRAW.CPP $*
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* *
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* $Author:: Greg_h $*
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* *
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* $Modtime:: 7/22/97 11:37a $*
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* *
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* $Revision:: 1 $*
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* *
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*---------------------------------------------------------------------------------------------*
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* Functions: *
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* CRCStraw::Get -- Fetch the data requested and calculate CRC on it. *
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* CRCStraw::Result -- Returns with the CRC of all data passed through the straw. *
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* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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#include "always.h"
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#include "crcstraw.h"
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/***********************************************************************************************
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* CRCStraw::Get -- Fetch the data requested and calculate CRC on it. *
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* *
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* This routine will fetch the number of bytes requested. The data will not be modified *
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* by this straw segment, but the CRC engine will examine the data so as to keep an *
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* accurate CRC value. *
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* *
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* INPUT: source -- Pointer to the buffer to hold the data requested. *
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* *
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* length -- The number of bytes requested. *
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* *
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* OUTPUT: Returns with the actual number of bytes stored in the buffer. If this number is *
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* less than that requested, then this indicates that the data stream has been *
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* exhausted. *
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* *
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* WARNINGS: none *
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* *
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* HISTORY: *
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* 07/03/1996 JLB : Created. *
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*=============================================================================================*/
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int CRCStraw::Get(void * source, int slen)
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{
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if (source == NULL || slen < 1) {
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return(0);
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}
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int counter = Straw::Get(source, slen);
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CRC(source, counter);
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return(counter);
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}
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/***********************************************************************************************
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* CRCStraw::Result -- Returns with the CRC of all data passed through the straw. *
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* *
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* This routine will return the CRC value of the data that has passed through this straw *
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* segment. *
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* *
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* INPUT: none *
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* *
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* OUTPUT: Returns with the CRC value of the data this straw segment has seen. *
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* *
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* WARNINGS: none *
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* *
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* HISTORY: *
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* 07/03/1996 JLB : Created. *
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*=============================================================================================*/
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long CRCStraw::Result(void) const
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{
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return(CRC());
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}
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