enum.c

	}

	ret = ast_search_dns(&context, domain, C_IN, T_TXT, txt_callback);
	if (ret > 0) {
		ast_copy_string(txt, context.txt, txtlen);
	} else {
		ast_debug(2, "No such number found in ENUM: %s (%s)\n", domain, strerror(errno));
	}

	if (autoservice) {
		ast_autoservice_stop(chan);
	}

	ast_free(domain);
	return 0;
}

/*! \brief Initialize the ENUM support subsystem */
static int private_enum_init(int reload)
{
	struct ast_config *cfg;
	const char *string;
	struct ast_flags config_flags = { reload ? CONFIG_FLAG_FILEUNCHANGED : 0 };

	if ((cfg = ast_config_load2("enum.conf", "enum", config_flags)) == CONFIG_STATUS_FILEUNCHANGED)
		return 0;
	if (cfg == CONFIG_STATUS_FILEMISSING || cfg == CONFIG_STATUS_FILEUNCHANGED || cfg == CONFIG_STATUS_FILEINVALID) {
		return 0;
	}

	/* Destroy existing list */
	ast_mutex_lock(&enumlock);
	if (cfg) {
		if ((string = ast_variable_retrieve(cfg, "ienum", "branchlabel"))) {
			ast_copy_string(ienum_branchlabel, string, sizeof(ienum_branchlabel));
		}

		if ((string = ast_variable_retrieve(cfg, "ienum", "ebl_alg"))) {
			ebl_alg = ENUMLOOKUP_BLR_CC; /* default */

			if (!strcasecmp(string, "txt"))
				ebl_alg = ENUMLOOKUP_BLR_TXT;
			else if (!strcasecmp(string, "ebl"))
				ebl_alg = ENUMLOOKUP_BLR_EBL;
			else if (!strcasecmp(string, "cc"))
				ebl_alg = ENUMLOOKUP_BLR_CC;
			else
				ast_log(LOG_WARNING, "No valid parameter for ienum/ebl_alg.\n");
		}
		ast_config_destroy(cfg);
	}
	ast_mutex_unlock(&enumlock);
	return 0;
}

static int load_module(void)
{
	return private_enum_init(0) ? AST_MODULE_LOAD_FAILURE : AST_MODULE_LOAD_SUCCESS;
}

static int unload_module(void)
{
	return 0;
}

static int reload_module(void)
{
	return private_enum_init(1);
}

AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_GLOBAL_SYMBOLS | AST_MODFLAG_LOAD_ORDER, "ENUM Support",
	.support_level = AST_MODULE_SUPPORT_CORE,
	.load = load_module,
	.unload = unload_module,
	.reload = reload_module,
	.load_pri = AST_MODPRI_CORE,
	.requires = "extconfig",
);