GENERAL_NAME_set0_value
GENERAL_NAME_set0_value(gen, GEN_OTHERNAME, oth);
GENERAL_NAME_set0_value(gen_name, GEN_DIRNAME, name_copy);
void GENERAL_NAME_set0_value(GENERAL_NAME *a, int type, void *value);
GENERAL_NAME_set0_value(gen, type, ia5);