From: R.E. Wolff <R.E.Wolff@BitWizard.nl>
Date: Mon, 28 Apr 2014 14:55:47 +0000 (+0200)
Subject: fixed DNS confusion in select.c if dnsfd(6) == 0
X-Git-Tag: v0.86~16
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=9e14fed3ec124147f9e8567f317c7fbf8eda155e;p=thirdparty%2Fmtr.git

fixed DNS confusion in select.c if dnsfd(6) == 0
---

diff --git a/select.c b/select.c
index 7553675..62478f4 100644
--- a/select.c
+++ b/select.c
@@ -197,12 +197,12 @@ void select_loop(void) {
 
     /*  Have we finished a nameservice lookup?  */
 #ifdef ENABLE_IPV6
-    if(dns && FD_ISSET(dnsfd6, &readfd)) {
+    if(dns && dnsfd6 && FD_ISSET(dnsfd6, &readfd)) {
       dns_ack6();
       anyset = 1;
     }
 #endif
-    if(dns && FD_ISSET(dnsfd, &readfd)) {
+    if(dns && dnsfd && FD_ISSET(dnsfd, &readfd)) {
       dns_ack();
       anyset = 1;
     }