Display more srv attributes in output of ubus browse function.

Namely: domain, ttl, last_update, priority and weight.

Signed-off-by: Mohd Husaam <[email protected]

cache.c

@@ -460,8 +460,59 @@ cache_dump_records(struct blob_buf *buf, const char *name, int array,
 				if (hostname)
 					*hostname = (char *)r->rdata + sizeof(struct dns_srv_data);
 			}
-			if (r->port)
-				blobmsg_add_u32(buf, "port", r->port);
+
+
+			if (r->record) {
+				char *domain = NULL;
+				/*
+				 * search for ._udp. or ._tcp. because:
+				 * Service Instance Name = <InstanceName> . <Service> . <Domain>
+				 * <Service> = _<ApplicationProtocol> . _<TransportProtocol>
+				 * and, according to rfc6763, _<TransportProtocol> can be **tcp or udp only**
+				 */
+				domain = strstr(r->record, "._udp.");
+
+				/* udp not found */
+				if (!domain)
+					domain = strstr(r->record, "._tcp.");
+
+				/* tcp also not found, seems like a wrong record */
+				if (!domain) {
+					break;
+				}
+
+				/* tcp could have been used instead of udp, they have the same length */
+				domain = domain + strlen("._udp.");
+				blobmsg_add_string(buf, "domain", domain);
+
+				if (r->port)
+					blobmsg_add_u32(buf, "port", r->port);
+
+				if (r->ttl)
+					blobmsg_add_u32(buf, "ttl", r->ttl);
+
+				if (r->time) {
+					struct tm *local_time;
+					char str_tm[32] = {0};
+					/*
+					 * last_update_real_seconds =
+					 * current_real_seconds - (current_monotonic_seconds - srv_last_update_monotonic_seconds)
+					 */
+					time_t last_update = time(NULL) - (monotonic_time() - r->time);
+					local_time = localtime(&last_update);
+					strftime(str_tm, sizeof(str_tm), "%Y-%m-%dT%H:%M:%SZ", local_time);
+
+					blobmsg_add_string(buf, "last_update", str_tm);
+				}
+
+				const struct dns_srv_data *dsd = (const struct dns_srv_data*)r->rdata;
+
+				if (r->rdlength > sizeof(*dsd)) {
+					blobmsg_add_u32(buf, "priority", be16_to_cpu(dsd->priority));
+					blobmsg_add_u32(buf, "weight", be16_to_cpu(dsd->weight));
+				}
+			}
+
 			break;
 		}