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Only copy questions when creating reply

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In particular, there may be additional records which should not be copied

PUBLISHED_FROM=6b348868cb62d7b3fc4df0e935ffd5a31a314a08
This commit is contained in:
Deomid Ryabkov authored and rojer committed 2016-04-19 12:27:48 +01:00
1 parent 466183113f
commit 083d398631
6 files changed
+41 -28
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examples/captive_dns_server/captive_dns_server.c
+14 -6
View File
@@ -23,28 +23,35 @@ static void ev_handler(struct mg_connection *nc, int ev, void *ev_data) {
int i;
switch (ev) {
case MG_DNS_MESSAGE:
case MG_DNS_MESSAGE: {
struct mbuf reply_buf;
mbuf_init(&reply_buf, 512);
msg = (struct mg_dns_message *) ev_data;
reply = mg_dns_create_reply(&nc->send_mbuf, msg);
reply = mg_dns_create_reply(&reply_buf, msg);
for (i = 0; i < msg->num_questions; i++) {
char rname[256];
rr = &msg->questions[i];
mg_dns_uncompress_name(msg, &rr->name, rname, sizeof(rname) - 1);
LOG(LL_INFO, ("Q type %d name %s", rr->rtype, rname));
if (rr->rtype == MG_DNS_A_RECORD) {
mg_dns_reply_record(&reply, rr, NULL, rr->rtype, 3600,
&s_our_ip_addr, 4);
mg_dns_reply_record(&reply, rr, NULL, rr->rtype, 10, &s_our_ip_addr,
4);
}
}
/*
* We don't set the error flag even if there were no answers
* maching the MG_DNS_A_RECORD query type.
* This indicates that we have (syntetic) answers for MG_DNS_A_RECORD.
* matching the MG_DNS_A_RECORD query type.
* This indicates that we have (synthetic) answers for MG_DNS_A_RECORD.
* See http://goo.gl/QWvufr for a distinction between NXDOMAIN and NODATA.
*/
mg_dns_send_reply(nc, &reply);
nc->flags |= MG_F_SEND_AND_CLOSE;
mbuf_free(&reply_buf);
break;
}
}
}
@@ -55,6 +62,7 @@ int main(int argc, char *argv[]) {
mg_mgr_init(&mgr, NULL);
s_our_ip_addr = inet_addr("127.0.0.1");
cs_log_set_level(LL_INFO);
/* Parse command line arguments */
for (i = 1; i < argc; i++) {