Read AAAA records

libmdnsd/1035.c

@@ -294,6 +294,16 @@ static int _rrparse(struct message *m, struct resource *rr, int count, unsigned
 			*bufp += sizeof(rr[i].known.a.ip.s_addr);
 			break;
 
+		case QTYPE_AAAA:
+			if (m->_len + INET6_ADDRSTRLEN > MAX_PACKET_LEN)
+				return 1;
+			rr[i].known.aaaa.name = (char *)m->_packet + m->_len;
+			m->_len += INET6_ADDRSTRLEN;
+			inet_ntop(AF_INET6, *bufp, rr[i].known.aaaa.name, INET6_ADDRSTRLEN);
+			memcpy(rr[i].known.aaaa.ip6.s6_addr, *bufp, sizeof(rr[i].known.aaaa.ip6.s6_addr));
+			*bufp += sizeof(rr[i].known.aaaa.ip6.s6_addr);
+			break;
+
 		case QTYPE_NS:
 			if (_label(m, bufp, &(rr[i].known.ns.name)))
 				return 1;

libmdnsd/1035.h

@@ -53,6 +53,7 @@ struct question {
 #define QTYPE_CNAME  5
 #define QTYPE_PTR    12
 #define QTYPE_TXT    16
+#define QTYPE_AAAA   28
 #define QTYPE_SRV    33
 #define QTYPE_ANY    255
 
@@ -67,6 +68,10 @@ struct resource {
 			struct in_addr ip;
 			char *name;
 		} a;
+		struct {
+			struct in6_addr ip6;
+			char *name;
+		} aaaa;
 		struct {
 			char *name;
 		} ns;

libmdnsd/mdnsd.c

@@ -202,6 +202,9 @@ static int _a_match(struct resource *r, mdns_answer_t *a)
 	if (r->type == QTYPE_A || !memcmp(&r->known.a.ip, &a->ip, 4))
 		return 1;
 
+	if (r->type == QTYPE_AAAA || !memcmp(&r->known.aaaa.ip6, &a->ip6, 16))
+		return 1;
+
 	if (r->rdlength == a->rdlen && !memcmp(r->rdata, a->rdata, r->rdlength))
 		return 1;
 
@@ -561,6 +564,10 @@ static int _cache(mdns_daemon_t *d, struct resource *r, struct in_addr ip)
 		c->rr.ip = r->known.a.ip;
 		break;
 
+	case QTYPE_AAAA:
+		c->rr.ip6 = r->known.aaaa.ip6;
+		break;
+
 	case QTYPE_NS:
 	case QTYPE_CNAME:
 	case QTYPE_PTR:

libmdnsd/mdnsd.h

@@ -62,6 +62,7 @@ typedef struct mdns_answer {
 	unsigned short int rdlen;
 	unsigned char *rdata;
 	struct in_addr ip;	/* A, network byte order */
+	struct in6_addr ip6;	/* AAAA, network byte order */
 	char *rdname;		/* NS/CNAME/PTR/SRV */
 	struct {
 		unsigned short int priority, weight, port;

src/mdnsd.c

@@ -71,14 +71,19 @@ void mdnsd_conflict(char *name, int type, void *arg)
 
 static void record_received(const struct resource *r, void *data)
 {
-	char ipinput[INET_ADDRSTRLEN];
+	char ipinput[INET6_ADDRSTRLEN];
 
 	switch(r->type) {
 	case QTYPE_A:
 		inet_ntop(AF_INET, &(r->known.a.ip), ipinput, INET_ADDRSTRLEN);
 		DBG("Got %s: A %s->%s", r->name, r->known.a.name, ipinput);
 		break;
 
+	case QTYPE_AAAA:
+		inet_ntop(AF_INET6, &(r->known.aaaa.ip6), ipinput, INET6_ADDRSTRLEN);
+		DBG("Got %s: AAAA %s->%s", r->name, r->known.aaaa.name, ipinput);
+		break;
+
 	case QTYPE_NS:
 		DBG("Got %s: NS %s", r->name, r->known.ns.name);
 		break;

src/mquery.c

@@ -112,6 +112,9 @@ static const char *type2str(int type)
 	case QTYPE_TXT:
 		return "TXT (16)";
 
+	case QTYPE_AAAA:
+		return "AAAA (28)";
+
 	case QTYPE_SRV:
 		return "SRV (33)";
 
@@ -130,6 +133,7 @@ static const char *type2str(int type)
 static int ans(mdns_answer_t *a, void *arg)
 {
 	int now;
+	char ipinput[INET6_ADDRSTRLEN];
 
 	if (a->ttl == 0)
 		now = 0;
@@ -155,7 +159,13 @@ static int ans(mdns_answer_t *a, void *arg)
 
 	switch (a->type) {
 	case QTYPE_A:
-		printf("A %s for %d seconds to ip %s\n", a->name, now, inet_ntoa(a->ip));
+		inet_ntop(AF_INET, &(a->ip), ipinput, INET_ADDRSTRLEN);
+		printf("A %s for %d seconds to ip %s\n", a->name, now, ipinput);
+		break;
+
+	case QTYPE_AAAA:
+		inet_ntop(AF_INET6, &(a->ip6), ipinput, INET6_ADDRSTRLEN);
+		printf("AAAA %s for %d seconds to ip %s\n", a->name, now, ipinput);
 		break;
 
 	case QTYPE_PTR: