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Initial commit of original Tiberian Dawn and Red Alert source code converted to build as DLLs, and compatible with the release version of Command & Conquer Remastered.
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PG-SteveT 2020-05-27 12:16:20 -07:00
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commit 03416d24e1
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//
// Copyright 2020 Electronic Arts Inc.
//
// TiberianDawn.DLL and RedAlert.dll and corresponding source code is free
// software: you can redistribute it and/or modify it under the terms of
// the GNU General Public License as published by the Free Software Foundation,
// either version 3 of the License, or (at your option) any later version.
// TiberianDawn.DLL and RedAlert.dll and corresponding source code is distributed
// in the hope that it will be useful, but with permitted additional restrictions
// under Section 7 of the GPL. See the GNU General Public License in LICENSE.TXT
// distributed with this program. You should have received a copy of the
// GNU General Public License along with permitted additional restrictions
// with this program. If not, see https://github.com/electronicarts/CnC_Remastered_Collection
/* $Header: /CounterStrike/CRCSTRAW.CPP 1 3/03/97 10:24a Joe_bostic $ */
/***********************************************************************************************
*** 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 ***
***********************************************************************************************
* *
* Project Name : Command & Conquer *
* *
* File Name : CRCSTRAW.CPP *
* *
* Programmer : Joe L. Bostic *
* *
* Start Date : 07/02/96 *
* *
* Last Update : July 3, 1996 [JLB] *
* *
*---------------------------------------------------------------------------------------------*
* Functions: *
* CRCStraw::Get -- Fetch the data requested and calculate CRC on it. *
* CRCStraw::Result -- Returns with the CRC of all data passed through the straw. *
* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
#include "crcstraw.h"
/***********************************************************************************************
* CRCStraw::Get -- Fetch the data requested and calculate CRC on it. *
* *
* This routine will fetch the number of bytes requested. The data will not be modified *
* by this straw segment, but the CRC engine will examine the data so as to keep an *
* accurate CRC value. *
* *
* INPUT: source -- Pointer to the buffer to hold the data requested. *
* *
* length -- The number of bytes requested. *
* *
* OUTPUT: Returns with the actual number of bytes stored in the buffer. If this number is *
* less than that requested, then this indicates that the data stream has been *
* exhausted. *
* *
* WARNINGS: none *
* *
* HISTORY: *
* 07/03/1996 JLB : Created. *
*=============================================================================================*/
int CRCStraw::Get(void * source, int slen)
{
if (source == NULL || slen < 1) {
return(0);
}
int counter = Straw::Get(source, slen);
CRC(source, counter);
return(counter);
}
/***********************************************************************************************
* CRCStraw::Result -- Returns with the CRC of all data passed through the straw. *
* *
* This routine will return the CRC value of the data that has passed through this straw *
* segment. *
* *
* INPUT: none *
* *
* OUTPUT: Returns with the CRC value of the data this straw segment has seen. *
* *
* WARNINGS: none *
* *
* HISTORY: *
* 07/03/1996 JLB : Created. *
*=============================================================================================*/
long CRCStraw::Result(void) const
{
return(CRC());
}