From: Timo Sirainen <tss@iki.fi>
Date: Wed, 19 Mar 2014 07:45:15 +0000 (+0200)
Subject: lib-dns: Fixed handling failed DNS lookups.
X-Git-Tag: 2.2.13.rc1~200
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=eb2091a2dedf5513dded8a980b79e206c716962d;p=thirdparty%2Fdovecot%2Fcore.git

lib-dns: Fixed handling failed DNS lookups.
---

diff --git a/src/lib-dns/dns-lookup.c b/src/lib-dns/dns-lookup.c
index 6433c9a432..31ee02cdbd 100644
--- a/src/lib-dns/dns-lookup.c
+++ b/src/lib-dns/dns-lookup.c
@@ -100,9 +100,9 @@ static int dns_lookup_input_line(struct dns_lookup *lookup, const char *line)
 			}
 			return 1;
 		}
-		/* first line: <ret> <ip count> */
+		/* first line: <ret> [<ip count>] */
 		if (sscanf(line, "%d %u", &result->ret,
-			   &result->ips_count) != 2)
+			   &result->ips_count) < 1)
 			return -1;
 		if (result->ret != 0) {
 			result->error = net_gethosterror(result->ret);