shastraw.h

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/*
**  Command & Conquer Generals Zero Hour(tm)
**  Copyright 2025 Electronic Arts Inc.
**
**  This program 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.
**
**  This program is distributed in the hope that it will be useful,
**  but WITHOUT ANY WARRANTY; without even the implied warranty of
**  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
**  GNU General Public License for more details.
**
**  You should have received a copy of the GNU General Public License
**  along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
 
/*********************************************************************************************** 
 ***              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                                            * 
 *                                                                                             * 
 *                     $Archive:: /Commando/Library/SHASTRAW.H                                $* 
 *                                                                                             * 
 *                      $Author:: Greg_h                                                      $*
 *                                                                                             * 
 *                     $Modtime:: 7/22/97 11:37a                                              $*
 *                                                                                             * 
 *                    $Revision:: 1                                                           $*
 *                                                                                             *
 *---------------------------------------------------------------------------------------------* 
 * Functions:                                                                                  * 
 * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
 
#ifndef SHASTRAW_H
#define SHASTRAW_H
 
 
#include    "sha.h"
#include    "straw.h"
 
/*
**  This class serves as a straw that generates a Secure Hash from the data stream that flows
**  through it. It doesn't modify the data stream in any fashion.
*/
class SHAStraw : public Straw
{
    public:
        SHAStraw(void) : IsDisabled(false) {}
        virtual int Get(void * source, int slen);
 
        void Disable(void) {IsDisabled = true;}
        void Enable(void) {IsDisabled = false;}
 
        // Fetch the SHA hash value (stored in result buffer -- 20 bytes long).
        int Result(void * result) const;
 
    protected:
        bool IsDisabled;
 
        SHAEngine SHA;
 
    private:
        SHAStraw(SHAStraw & rvalue);
        SHAStraw & operator = (SHAStraw const & straw);
};
 
 
#endif