mirror of
https://github.com/yuzu-emu/mbedtls
synced 2024-11-24 17:58:18 +00:00
101 lines
2.7 KiB
C
101 lines
2.7 KiB
C
/**
|
|
* \brief Use and generate multiple entropies calls into a file
|
|
*
|
|
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License"); you may
|
|
* not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*
|
|
* This file is part of mbed TLS (https://tls.mbed.org)
|
|
*/
|
|
|
|
#if !defined(MBEDTLS_CONFIG_FILE)
|
|
#include "mbedtls/config.h"
|
|
#else
|
|
#include MBEDTLS_CONFIG_FILE
|
|
#endif
|
|
|
|
#if defined(MBEDTLS_PLATFORM_C)
|
|
#include "mbedtls/platform.h"
|
|
#else
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#define mbedtls_fprintf fprintf
|
|
#define mbedtls_printf printf
|
|
#define MBEDTLS_EXIT_SUCCESS EXIT_SUCCESS
|
|
#define MBEDTLS_EXIT_FAILURE EXIT_FAILURE
|
|
#endif /* MBEDTLS_PLATFORM_C */
|
|
|
|
#if defined(MBEDTLS_ENTROPY_C) && defined(MBEDTLS_FS_IO)
|
|
#include "mbedtls/entropy.h"
|
|
|
|
#include <stdio.h>
|
|
#endif
|
|
|
|
#if !defined(MBEDTLS_ENTROPY_C) || !defined(MBEDTLS_FS_IO)
|
|
int main( void )
|
|
{
|
|
mbedtls_printf("MBEDTLS_ENTROPY_C and/or MBEDTLS_FS_IO not defined.\n");
|
|
return( 0 );
|
|
}
|
|
#else
|
|
int main( int argc, char *argv[] )
|
|
{
|
|
FILE *f;
|
|
int i, k, ret = 1;
|
|
int exit_code = MBEDTLS_EXIT_FAILURE;
|
|
mbedtls_entropy_context entropy;
|
|
unsigned char buf[MBEDTLS_ENTROPY_BLOCK_SIZE];
|
|
|
|
if( argc < 2 )
|
|
{
|
|
mbedtls_fprintf( stderr, "usage: %s <output filename>\n", argv[0] );
|
|
return( exit_code );
|
|
}
|
|
|
|
if( ( f = fopen( argv[1], "wb+" ) ) == NULL )
|
|
{
|
|
mbedtls_printf( "failed to open '%s' for writing.\n", argv[1] );
|
|
return( exit_code );
|
|
}
|
|
|
|
mbedtls_entropy_init( &entropy );
|
|
|
|
for( i = 0, k = 768; i < k; i++ )
|
|
{
|
|
ret = mbedtls_entropy_func( &entropy, buf, sizeof( buf ) );
|
|
if( ret != 0 )
|
|
{
|
|
mbedtls_printf( " failed\n ! mbedtls_entropy_func returned -%04X\n",
|
|
ret );
|
|
goto cleanup;
|
|
}
|
|
|
|
fwrite( buf, 1, sizeof( buf ), f );
|
|
|
|
mbedtls_printf( "Generating %ldkb of data in file '%s'... %04.1f" \
|
|
"%% done\r", (long)(sizeof(buf) * k / 1024), argv[1], (100 * (float) (i + 1)) / k );
|
|
fflush( stdout );
|
|
}
|
|
|
|
exit_code = MBEDTLS_EXIT_SUCCESS;
|
|
|
|
cleanup:
|
|
mbedtls_printf( "\n" );
|
|
|
|
fclose( f );
|
|
mbedtls_entropy_free( &entropy );
|
|
|
|
return( exit_code );
|
|
}
|
|
#endif /* MBEDTLS_ENTROPY_C */
|