94 lines
6.5 KiB
C++
94 lines
6.5 KiB
C++
//
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// Copyright 2020 Electronic Arts Inc.
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//
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// TiberianDawn.DLL and RedAlert.dll and corresponding source code is free
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// software: you can redistribute it and/or modify it under the terms of
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// the GNU General Public License as published by the Free Software Foundation,
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// either version 3 of the License, or (at your option) any later version.
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// TiberianDawn.DLL and RedAlert.dll and corresponding source code is distributed
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// in the hope that it will be useful, but with permitted additional restrictions
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// under Section 7 of the GPL. See the GNU General Public License in LICENSE.TXT
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// distributed with this program. You should have received a copy of the
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// GNU General Public License along with permitted additional restrictions
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// with this program. If not, see https://github.com/electronicarts/CnC_Remastered_Collection
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/* $Header: /CounterStrike/SHASTRAW.CPP 1 3/03/97 10:25a Joe_bostic $ */
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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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* File Name : SHASTRAW.CPP *
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* *
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* Programmer : Joe L. Bostic *
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* *
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* Start Date : 07/02/96 *
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* *
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* Last Update : July 3, 1996 [JLB] *
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* *
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*---------------------------------------------------------------------------------------------*
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* Functions: *
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* SHAStraw::Get -- Fetch data from the straw and process the SHA with the data. *
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* SHAStraw::Result -- Fetches the current SHA digest. *
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* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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#include "shastraw.h"
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/***********************************************************************************************
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* SHAStraw::Get -- Fetch data from the straw and process the SHA with the data. *
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* *
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* This routine will fetch the requested data and as it passes through this straw it will *
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* submit it to the SHA processor. The data that passes through is unmodified by this *
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* straw segment. *
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* *
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* INPUT: source -- Pointer to the buffer that will hold the requested data. *
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* *
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* length -- The length of the data requested. *
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* *
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* OUTPUT: Returns with the number of bytes stored in the buffer. If this number is less *
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* than the number 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 SHAStraw::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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SHA.Hash(source, counter);
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return(counter);
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}
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/***********************************************************************************************
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* SHAStraw::Result -- Fetches the current SHA digest. *
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* *
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* Use this routine to fetch the current SHA digest from the straw. It will return the *
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* digest of the data that has passed through this straw segment. *
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* *
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* INPUT: result -- Pointer to the buffer to hold the message digest. The buffer must be *
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* 20 bytes long. *
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* *
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* OUTPUT: Returns with the number of bytes stored into the digest buffer. This will always *
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* be 20. *
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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 SHAStraw::Result(void * result) const
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{
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return(SHA.Result(result));
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}
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