mirror of
https://github.com/yuzu-emu/mbedtls.git
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3b0c430638
This is done to account for platforms, for which we want custom behavior upon the program termination, hence we call `mbedtls_exit()` instead of returning from `main()`. For the sake of consistency, introduces the modifications have been made to the test and utility examples as well. These, while less likely to be used in the low level environments, won't suffer from such a change.
110 lines
2.8 KiB
C
110 lines
2.8 KiB
C
/**
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* \brief Generate random data into a file
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*
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* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* This file is part of mbed TLS (https://tls.mbed.org)
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*/
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#if !defined(MBEDTLS_CONFIG_FILE)
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#include "mbedtls/config.h"
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#else
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#include MBEDTLS_CONFIG_FILE
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#endif
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#if defined(MBEDTLS_PLATFORM_C)
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#include "mbedtls/platform.h"
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#else
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#include <stdio.h>
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#include <stdlib.h>
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#define mbedtls_fprintf fprintf
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#define mbedtls_printf printf
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#define mbedtls_exit exit
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#define MBEDTLS_EXIT_SUCCESS EXIT_SUCCESS
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#define MBEDTLS_EXIT_FAILURE EXIT_FAILURE
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#endif /* MBEDTLS_PLATFORM_C */
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#if defined(MBEDTLS_HAVEGE_C) && defined(MBEDTLS_FS_IO)
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#include "mbedtls/havege.h"
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#include <stdio.h>
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#include <time.h>
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#endif
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#if !defined(MBEDTLS_HAVEGE_C) || !defined(MBEDTLS_FS_IO)
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int main( void )
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{
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mbedtls_printf("MBEDTLS_HAVEGE_C not defined.\n");
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mbedtls_exit( 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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time_t t;
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int i, k, ret = 1;
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int exit_code = MBEDTLS_EXIT_FAILURE;
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mbedtls_havege_state hs;
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unsigned char buf[1024];
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if( argc < 2 )
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{
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mbedtls_fprintf( stderr, "usage: %s <output filename>\n", argv[0] );
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mbedtls_exit( exit_code );
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}
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if( ( f = fopen( argv[1], "wb+" ) ) == NULL )
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{
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mbedtls_printf( "failed to open '%s' for writing.\n", argv[1] );
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mbedtls_exit( exit_code );
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}
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mbedtls_havege_init( &hs );
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t = time( NULL );
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for( i = 0, k = 768; i < k; i++ )
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{
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if( ( ret = mbedtls_havege_random( &hs, buf, sizeof( buf ) ) ) != 0 )
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{
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mbedtls_printf( " failed\n ! mbedtls_havege_random returned -0x%04X",
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-ret );
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goto exit;
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}
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fwrite( buf, sizeof( buf ), 1, f );
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mbedtls_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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if( t == time( NULL ) )
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t--;
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mbedtls_printf(" \n ");
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exit_code = MBEDTLS_EXIT_SUCCESS;
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exit:
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mbedtls_havege_free( &hs );
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fclose( f );
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mbedtls_exit( exit_code );
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}
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#endif /* MBEDTLS_HAVEGE_C */
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