Refactoring after CR and new unit test #3175
Signed-off-by: Victor Krasnoshchok <ct3da21164@protonmail.ch>
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3 changed files with 34 additions and 9 deletions
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@ -466,25 +466,32 @@ int mbedtls_entropy_update_nv_seed( mbedtls_entropy_context *ctx )
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#if defined(MBEDTLS_FS_IO)
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int mbedtls_entropy_write_seed_file( mbedtls_entropy_context *ctx, const char *path )
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{
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int ret;
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int ret = 0;
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FILE *f = NULL;
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unsigned char buf[MBEDTLS_ENTROPY_BLOCK_SIZE];
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if( ( ret = mbedtls_entropy_func( ctx, buf, MBEDTLS_ENTROPY_BLOCK_SIZE ) ) != 0 )
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goto exit;
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ret = MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR;
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if( ( f = fopen( path, "wb" ) ) != NULL )
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{
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if( fwrite( buf, 1, MBEDTLS_ENTROPY_BLOCK_SIZE, f ) != MBEDTLS_ENTROPY_BLOCK_SIZE )
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goto exit;
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ret = 0;
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ret = MBEDTLS_ERR_ENTROPY_SOURCE_FAILED;
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goto exit;
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}
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if( ( f = fopen( path, "wb" ) ) == NULL )
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{
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ret = MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR;
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goto exit;
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}
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if( fwrite( buf, 1, MBEDTLS_ENTROPY_BLOCK_SIZE, f ) != MBEDTLS_ENTROPY_BLOCK_SIZE )
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{
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ret = MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR;
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goto exit;
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}
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exit:
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mbedtls_platform_zeroize( buf, sizeof( buf ) );
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if( f )
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if( f != NULL )
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fclose( f );
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return( ret );
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