add good bye messages

[project/mdnsd.git] / dns.c

diff --git a/dns.c b/dns.c
index 0d192acf8faa439ffb3dbbef8af6d4aa2140a941..d8c152948b86cf3e42479385f709e9ca9035ad51 100644 (file)
--- a/dns.c
+++ b/dns.c
@@ -66,7 +66,7 @@ dns_type_string(uint16_t type)
 }
 
 void
-dns_send_question(struct interface *iface, const char *question, int type)
+dns_send_question(struct interface *iface, const char *question, int type, int unicast)
 {
        static struct dns_header h;
        static struct dns_question q;
@@ -86,7 +86,7 @@ dns_send_question(struct interface *iface, const char *question, int type)
        int len;
 
        h.questions = cpu_to_be16(1);
-       q.class = cpu_to_be16(1);
+       q.class = cpu_to_be16(((unicast) ? (CLASS_UNICAST) : (0))  | 1);
        q.type = cpu_to_be16(type);
 
        len = dn_comp(question, (void *) name_buffer, sizeof(name_buffer), NULL, NULL);
@@ -95,10 +95,9 @@ dns_send_question(struct interface *iface, const char *question, int type)
 
        iov[1].iov_len = len;
 
+       DBG(1, "Q <- %s %s\n", dns_type_string(type), question);
        if (interface_send_packet(iface, iov, ARRAY_SIZE(iov)) < 0)
-               fprintf(stderr, "failed to send question\n");
-       else
-               DBG(1, "Q <- %s %s\n", dns_type_string(type), question);
+               perror("failed to send question :");
 }
 
 
@@ -320,6 +319,9 @@ parse_question(struct interface *iface, char *name, struct dns_question *q)
 {
        char *host;
 
+       if ((q->class & CLASS_UNICAST) && iface->multicast)
+               iface = iface->peer;
+
        DBG(1, "Q -> %s %s\n", dns_type_string(q->type), name);
 
        switch (q->type) {
@@ -329,7 +331,7 @@ parse_question(struct interface *iface, char *name, struct dns_question *q)
                break;
 
        case TYPE_PTR:
-               service_announce_services(iface, name);
+               service_announce_services(iface, name, announce_ttl);
                service_reply(iface, name, announce_ttl);
                break;
 
@@ -339,13 +341,13 @@ parse_question(struct interface *iface, char *name, struct dns_question *q)
                if (host)
                        *host = '\0';
                if (!strcmp(mdns_hostname, name))
-                       service_reply_a(iface, q->type, announce_ttl);
+                       service_reply_a(iface, announce_ttl);
                break;
        };
 }
 
 void
-dns_handle_packet(struct interface *iface, uint8_t *buffer, int len)
+dns_handle_packet(struct interface *iface, uint8_t *buffer, int len, int unicast)
 {
        struct dns_header *h;
        uint8_t *b = buffer;