18b78c7498
Clean up the contents of programs, add more guards to includes, move all defines to the top of the top of files, remove some unused includes
100 lines
2.6 KiB
C
100 lines
2.6 KiB
C
/**
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* \brief Use and generate multiple entropies calls into a file
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*
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* Copyright (C) 2006-2011, ARM Limited, All Rights Reserved
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*
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* This file is part of mbed TLS (https://polarssl.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 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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#if !defined(POLARSSL_CONFIG_FILE)
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#include "polarssl/config.h"
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#else
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#include POLARSSL_CONFIG_FILE
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#endif
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#if defined(POLARSSL_PLATFORM_C)
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#include "polarssl/platform.h"
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#else
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#include <stdio.h>
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#define polarssl_fprintf fprintf
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#define polarssl_printf printf
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#endif
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#if defined(POLARSSL_ENTROPY_C) && defined(POLARSSL_FS_IO)
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#include "polarssl/entropy.h"
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#include <stdio.h>
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#endif
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#if !defined(POLARSSL_ENTROPY_C) || !defined(POLARSSL_FS_IO)
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int main( int argc, char *argv[] )
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{
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((void) argc);
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((void) argv);
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polarssl_printf("POLARSSL_ENTROPY_C and/or POLARSSL_FS_IO not defined.\n");
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return( 0 );
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}
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#else
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int main( int argc, char *argv[] )
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{
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FILE *f;
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int i, k, ret;
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entropy_context entropy;
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unsigned char buf[ENTROPY_BLOCK_SIZE];
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if( argc < 2 )
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{
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polarssl_fprintf( stderr, "usage: %s <output filename>\n", argv[0] );
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return( 1 );
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}
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if( ( f = fopen( argv[1], "wb+" ) ) == NULL )
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{
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polarssl_printf( "failed to open '%s' for writing.\n", argv[1] );
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return( 1 );
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}
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entropy_init( &entropy );
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for( i = 0, k = 768; i < k; i++ )
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{
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ret = entropy_func( &entropy, buf, sizeof( buf ) );
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if( ret != 0 )
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{
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polarssl_printf("failed!\n");
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goto cleanup;
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}
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fwrite( buf, 1, sizeof( buf ), f );
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polarssl_printf( "Generating %ldkb of data in file '%s'... %04.1f" \
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"%% done\r", (long)(sizeof(buf) * k / 1024), argv[1], (100 * (float) (i + 1)) / k );
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fflush( stdout );
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}
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ret = 0;
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cleanup:
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polarssl_printf( "\n" );
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fclose( f );
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entropy_free( &entropy );
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return( ret );
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}
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#endif /* POLARSSL_ENTROPY_C */
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