display more srv attributes in output of ubus browse function

In the output of ubus call umdns browse, the following srv params
have been exposed with this commit:

* domain,
* ttl,
* last_update,
* priority
* weight

The new output looks as follows:

"_http._tcp": {
	"Apache service": {
		"iface": "br-lan",
		"host": "user831.local",
		"domain": "local",
		"port": 80,
		"ttl": 120,
		"last_update": "2024-01-16T02:41:02Z",
		"priority": 0,
		"weight": 0,
		"ipv4": "192.168.1.245",
		"ipv6": "9999:1234:830::1f0",
		"ipv6":	"fdc5:c8b6:f412::1f0",
		"ipv6":	"fdc5:c8b6:f412:0:a800:aaff:fe53:101",
		"ipv6":	"9999:1234:830:0:a800:aaff:fe53:101"
	}
}

Signed-off-by: Mohd Husaam <husaam.mehdi@iopsys.eu>

1 files changed, 41 insertions, 2 deletions

diff --git a/cache.c b/cache.c
index 384487a..2412ed2 100644
--- a/cache.c
+++ b/cache.c
@@ -460,8 +460,47 @@ 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) {
+				const struct dns_srv_data *dsd;
+				char *domain = NULL;
+				
+				domain = strstr(r->record, "._udp.");
+
+				if (!domain)
+					domain = strstr(r->record, "._tcp.");
+
+				if (!domain)
+					break;
+
+				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};
+					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);
+				}
+
+				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;
 		}