pk_parse*keyfile: explicitly validate path=NULL
Don't rely on the check in pk_load_file, that's fragile.
@@ -135,6 +135,7 @@ int mbedtls_pk_parse_keyfile( mbedtls_pk_context *ctx,
unsigned char *buf;
PK_VALIDATE_RET( ctx != NULL );
+ PK_VALIDATE_RET( path != NULL );
if( ( ret = mbedtls_pk_load_file( path, &buf, &n ) ) != 0 )
return( ret );
@@ -161,6 +162,7 @@ int mbedtls_pk_parse_public_keyfile( mbedtls_pk_context *ctx, const char *path )
unsigned char *buf;
PK_VALIDATE_RET( ctx != NULL );
+ PK_VALIDATE_RET( path != NULL );
if( ( ret = mbedtls_pk_load_file( path, &buf, &n ) ) != 0 )
return( ret );
