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Refactoring after CR and new unit test #3175

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Signed-off-by: Victor Krasnoshchok <ct3da21164@protonmail.ch>
This commit is contained in:
Victor Krasnoshchok
2020-08-29 22:54:37 +03:00
parent e79812ed4d
commit b3129ba119
3 changed files with 34 additions and 9 deletions
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25
library/entropy.c
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@ -466,25 +466,32 @@ int mbedtls_entropy_update_nv_seed( mbedtls_entropy_context *ctx )
#if defined(MBEDTLS_FS_IO)
int mbedtls_entropy_write_seed_file( mbedtls_entropy_context *ctx, const char *path )
{
int ret;
int ret = 0;
FILE *f = NULL;
unsigned char buf[MBEDTLS_ENTROPY_BLOCK_SIZE];
if( ( ret = mbedtls_entropy_func( ctx, buf, MBEDTLS_ENTROPY_BLOCK_SIZE ) ) != 0 )
goto exit;
ret = MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR;
if( ( f = fopen( path, "wb" ) ) != NULL )
{
if( fwrite( buf, 1, MBEDTLS_ENTROPY_BLOCK_SIZE, f ) != MBEDTLS_ENTROPY_BLOCK_SIZE )
goto exit;
ret = 0;
ret = MBEDTLS_ERR_ENTROPY_SOURCE_FAILED;
goto exit;
}
if( ( f = fopen( path, "wb" ) ) == NULL )
{
ret = MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR;
goto exit;
}
if( fwrite( buf, 1, MBEDTLS_ENTROPY_BLOCK_SIZE, f ) != MBEDTLS_ENTROPY_BLOCK_SIZE )
{
ret = MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR;
goto exit;
}
exit:
mbedtls_platform_zeroize( buf, sizeof( buf ) );
if( f )
if( f != NULL )
fclose( f );
return( ret );