Author: Marcin Wisnicki <mwisnicki@gmail.com>

Bug 3088: dnsserver is segfaulting

diff --git a/src/dnsserver.cc b/src/dnsserver.cc
index 99ffb14337002ec94530d4d4976ce09aa085e915..5a558c5fd59b9280f0abeae13a1f23292d39dea0 100644 (file)
--- a/src/dnsserver.cc
+++ b/src/dnsserver.cc
@@ -214,8 +214,10 @@ lookup(const char *buf)
     hints.ai_flags = AI_CANONNAME;
 
     for (;;) {
-        xfreeaddrinfo(AI);
-        AI = NULL;
+        if (AI != NULL) {
+            xfreeaddrinfo(AI);
+            AI = NULL;
+        }
 
         if ( 0 == (res = xgetaddrinfo(buf,NULL,&hints,&AI)) )
             break;