sntp/libevent/evdns.c

199 struct reply {
261 /* Represents part of a reply being built.	(That is, a single RR.) */
274 /* the components of the reply as we're constructing it. */
295 	/* Constructed response.  Only set once we're ready to send a reply. */
781 	struct reply reply;
794 			    cb->reply.data.a.addrcount, cb->ttl,
795 			    cb->reply.data.a.addresses,
802 			char *name = cb->reply.data.ptr.name;
812 			    cb->reply.data.aaaa.addrcount, cb->ttl,
813 			    cb->reply.data.aaaa.addresses,
830 reply_schedule_callback(struct request *const req, u32 ttl, u32 err, struct reply *reply)
846 	if (reply) {
848 		memcpy(&d->reply, reply, sizeof(struct reply));
866 /* this processes a parsed reply packet */
868 reply_handle(struct request *const req, u16 flags, u32 ttl, struct reply *reply) {
879 	if (flags & 0x020f || !reply || !reply->have_answer) {
890 		} else if (reply && !reply->have_answer) {
923 			/* we got a good reply from the nameserver: it is up. */
951 		reply_schedule_callback(req, ttl, 0, reply);
1027 	struct reply reply;
1046 	memset(&reply, 0, sizeof(reply));
1056 	/* This macro skips a name in the DNS reply. */
1082 	reply.type = req->request_type;
1084 	/* skip over each question in the reply */
1118 			addrtocopy = MIN(MAX_V4_ADDRS - reply.data.a.addrcount, (unsigned)addrcount);
1123 			memcpy(&reply.data.a.addresses[reply.data.a.addrcount],
1126 			reply.data.a.addrcount += addrtocopy;
1127 			reply.have_answer = 1;
1128 			if (reply.data.a.addrcount == MAX_V4_ADDRS) break;
1133 			if (name_parse(packet, length, &j, reply.data.ptr.name,
1134 						   sizeof(reply.data.ptr.name))<0)
1137 			reply.have_answer = 1;
1156 			addrtocopy = MIN(MAX_V6_ADDRS - reply.data.aaaa.addrcount, (unsigned)addrcount);
1161 			memcpy(&reply.data.aaaa.addresses[reply.data.aaaa.addrcount],
1163 			reply.data.aaaa.addrcount += addrtocopy;
1165 			reply.have_answer = 1;
1166 			if (reply.data.aaaa.addrcount == MAX_V6_ADDRS) break;
1173 	if (!reply.have_answer) {
1206 	reply_handle(req, flags, ttl_r, &reply);
2308 		/* this is a good reply */
3999 	case DNS_ERR_TRUNCATED: return "reply truncated or ill-formed";
4004 	case DNS_ERR_NODATA: return "no records in the reply";