func: char *CONF_get1_default_config_file() char * file ; int len ; file = getenv ( "OPENSSL_CONF" ); if ( file )  len = ( strlen ( X509_get_default_cert_area ( ) ) ); len ++; len += strlen ( "openssl.cnf" ); file = ( CRYPTO_malloc ( ( ( int ) len ) + 1 , "conf_mod.c" , 561 ) ); if ( ! file )  BUF_strlcpy ( file , X509_get_default_cert_area ( ) , ( len + 1 ) ); BUF_strlcat ( file , "/" , ( len + 1 ) ); BUF_strlcat ( file , "openssl.cnf" , ( len + 1 ) ); return file ; 