From: Yasuoka Masahiko <yasuoka@iij.ad.jp>
Date: Fri, 4 Dec 2009 18:44:46 +0000 (-0800)
Subject: Fix a crash when reading badly formatted resolve.conf; from Yasuoka Masahiko
X-Git-Tag: release-2.0.4-alpha~127^2
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=6c7c5799a4a3d590fac4c3b87c1c813d9e92f61c;p=libevent

Fix a crash when reading badly formatted resolve.conf; from Yasuoka Masahiko
---

diff --git a/evdns.c b/evdns.c
index 9a417999..e46f7bff 100644
--- a/evdns.c
+++ b/evdns.c
@@ -3304,7 +3304,8 @@ resolv_conf_parse_line(struct evdns_base *base, char *const start, int flags) {
 	if (!strcmp(first_token, "nameserver") && (flags & DNS_OPTION_NAMESERVERS)) {
 		const char *const nameserver = NEXT_TOKEN;
 
-		evdns_base_nameserver_ip_add(base, nameserver);
+		if (nameserver)
+			evdns_base_nameserver_ip_add(base, nameserver);
 	} else if (!strcmp(first_token, "domain") && (flags & DNS_OPTION_SEARCH)) {
 		const char *const domain = NEXT_TOKEN;
 		if (domain) {