4  * An API for applications to do DNS query.
234 	/* Query again if we got CNAME */  in dispatcher_cb()
258 			NET_DBG("DNS cname query failed %d times", failure);  in dispatcher_cb()
542 				/* There was query to this server already */  in dns_resolve_init_locked()
632  * @param pending_query the query slot in question
634  * @param reclaim_if_available if the slot is marked in use, but the query has
638  * @return true if and only if the slot can be used for a new query.
648 		    && pending_query->query == NULL  in check_query_active()
672 /* Invoke the callback associated with a query slot, if still relevant.
676  * @param status the query status value
677  * @param info the query result structure
678  * @param pending_query the query slot that will provide the callback
687 	if (pending_query->query != NULL && pending_query->cb != NULL)  {  in invoke_query_callback()
692 /* Release a query slot reserved by get_cb_slot().
696  * @param pending_query the query slot to be released
711 		pending_query->query = NULL;  in release_query()
765 	 * can match the DNS query that we sent. When dns_read() is called,  in dns_validate_msg()
775 	/* We might receive a query while we are waiting for a response, in that  in dns_validate_msg()
776 	 * case we just ignore the query instead of making the resolving fail.  in dns_validate_msg()
790 		/* For mDNS (when dns_id == 0) the query count is 0 */  in dns_validate_msg()
810 		/* mDNS responses to do not have the query part so the  in dns_validate_msg()
818 	 * the proper query. To simplify things, the normal DNS responses  in dns_validate_msg()
843 			/* Convert the query name to small case so that our  in dns_validate_msg()
850 			/* Add \0 and query type (A or AAAA) to the hash */  in dns_validate_msg()
923 				ctx->queries[*query_idx].query, &info, ttl);  in dns_validate_msg()
964 	 * another query. Number of additional queries is controlled via Kconfig  in dns_validate_msg()
1038 				     ctx->queries[query_idx].query,  in dns_read()
1081 	/* Convert the query name to small case so that our  in dns_write()
1088 	/* Add \0 and query type (A or AAAA) to the hash. Note that  in dns_write()
1119 			/* There was query to this server already */  in dns_write()
1157 		NET_DBG("Cannot send query (%d)", -errno);  in dns_write()
1192 		if (ctx->queries[i].cb && ctx->queries[i].query) {  in dns_resolve_cancel_all()
1258 			/* If the query string + \0 + query type (A or AAAA)  in dns_resolve_cancel_with_name()
1296 	 * associated with the query.  But don't block the system work queue:  in query_timeout()
1309 		 * Reschedule query timeout handler with some delay, so that all  in query_timeout()
1320 	NET_DBG("Query timeout DNS req %u type %d hash %u", pending_query->id,  in query_timeout()
1331 					   pending_query->query);  in query_timeout()
1337 		     const char *query,  in dns_resolve_name()  argument
1356 	if (!ctx || !query || !cb) {  in dns_resolve_name()
1368 	ret = net_ipaddr_parse(query, strlen(query), &addr);  in dns_resolve_name()
1370 		/* The query name was already in numeric form, no  in dns_resolve_name()
1417 	ret = dns_cache_find(&dns_cache, query, cached_info, ARRAY_SIZE(cached_info));  in dns_resolve_name()
1419 		/* The query was cached, no  in dns_resolve_name()
1446 	ctx->queries[i].query = query;  in dns_resolve_name()
1467 				CONFIG_DNS_RESOLVER_MAX_QUERY_LEN, ctx->queries[i].query);  in dns_resolve_name()
1479 		const char *ptr = strrchr(query, '.');  in dns_resolve_name()
1514 		 * LLMNR multicast address unless it is a mDNS query.  in dns_resolve_name()
1533 		/* Do one concurrent query only for each name resolve.  in dns_resolve_name()
1534 		 * TODO: Change the i (query index) to do multiple concurrent  in dns_resolve_name()
1541 		NET_DBG("DNS query failed %d times", failure);  in dns_resolve_name()