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132 lines
4.0 KiB
C
132 lines
4.0 KiB
C
/*
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* Harbour Project source code:
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* HMAC-SHA1 Harbour wrappers
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*
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* Copyright 2009 Viktor Szakats (harbour syenar.net)
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* www - http://harbour-project.org
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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 2, or (at your option)
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* 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 software; see the file COPYING.txt. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
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*
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* As a special exception, the Harbour Project gives permission for
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* additional uses of the text contained in its release of Harbour.
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*
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* The exception is that, if you link the Harbour libraries with other
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* files to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the Harbour library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by the Harbour
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* Project under the name Harbour. If you copy code from other
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* Harbour Project or Free Software Foundation releases into a copy of
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* Harbour, as the General Public License permits, the exception does
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* not apply to the code that you add in this way. To avoid misleading
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* anyone as to the status of such modified files, you must delete
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* this exception notice from them.
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*
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* If you write modifications of your own for Harbour, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice.
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*
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*/
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#include "hbapi.h"
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#include "sha1hmac.h"
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HB_FUNC( HB_HMAC_SHA1 )
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{
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unsigned char mac[ HMAC_SHA1_DIGEST_LENGTH ];
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HMAC_SHA1_CTX ctx;
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hb_HMAC_SHA1_Init( &ctx );
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#if HB_SIZE_MAX > UINT_MAX
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{
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const char * buffer = hb_parcx( 2 );
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HB_SIZE nCount = hb_parclen( 2 );
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HB_SIZE nDone = 0;
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while( nCount )
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{
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unsigned int uiChunk;
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if( nCount > ( HB_SIZE ) UINT_MAX )
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{
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uiChunk = UINT_MAX;
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nCount -= ( HB_SIZE ) uiChunk;
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}
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else
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{
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uiChunk = ( unsigned int ) nCount;
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nCount = 0;
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}
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hb_HMAC_SHA1_UpdateKey( &ctx, buffer + nDone, uiChunk );
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nDone += ( HB_SIZE ) uiChunk;
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}
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}
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#else
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hb_HMAC_SHA1_UpdateKey( &ctx, hb_parcx( 2 ), hb_parclen( 2 ) );
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#endif
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hb_HMAC_SHA1_EndKey( &ctx );
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hb_HMAC_SHA1_StartMessage( &ctx );
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#if HB_SIZE_MAX > UINT_MAX
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{
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const char * buffer = hb_parcx( 1 );
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HB_SIZE nCount = hb_parclen( 1 );
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HB_SIZE nDone = 0;
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while( nCount )
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{
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unsigned int uiChunk;
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if( nCount > ( HB_SIZE ) UINT_MAX )
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{
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uiChunk = UINT_MAX;
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nCount -= ( HB_SIZE ) uiChunk;
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}
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else
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{
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uiChunk = ( unsigned int ) nCount;
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nCount = 0;
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}
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hb_HMAC_SHA1_UpdateMessage( &ctx, buffer + nDone, uiChunk );
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nDone += ( HB_SIZE ) uiChunk;
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}
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}
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#else
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hb_HMAC_SHA1_UpdateMessage( &ctx, hb_parcx( 1 ), hb_parclen( 1 ) );
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#endif
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hb_HMAC_SHA1_EndMessage( mac, &ctx );
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hb_HMAC_SHA1_Done( &ctx );
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if( ! hb_parl( 3 ) )
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{
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char hex[ ( sizeof( mac ) * 2 ) + 1 ];
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hb_strtohex( ( char * ) mac, sizeof( mac ), hex );
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hb_retclen( hex, HB_SIZEOFARRAY( hex ) - 1 );
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}
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else
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hb_retclen( ( char * ) mac, sizeof( mac ) );
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}
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