From: R.E. Wolff <R.E.Wolff@BitWizard.nl>
Date: Sun, 28 Dec 2014 16:39:16 +0000 (+0100)
Subject: removed warning about IPV6 socket when IPV6 is not available at runtime
X-Git-Tag: v0.87~31
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ac84e1db5aeb5f0d63a8302a8a1500ba2638eeee;p=thirdparty%2Fmtr.git

removed warning about IPV6 socket when IPV6 is not available at runtime
---

diff --git a/dns.c b/dns.c
index 32b83c2..36f0c12 100644
--- a/dns.c
+++ b/dns.c
@@ -527,14 +527,9 @@ void dns_open(void)
   }
 #ifdef ENABLE_IPV6
   resfd6 = socket(AF_INET6, SOCK_DGRAM, 0);
-  if (resfd6 == -1) {
-    // consider making removing this warning. For now leave it in to see 
-    // new code activated. -- REW
-    fprintf(stderr,
-            "Unable to allocate IPv6 socket for nameserver communication: %s\n",
-	    strerror(errno));
-    //    exit(-1);
-  }
+  // If this fails, e.g. because the user has runtime-disabled IPV6, 
+  // the error can be ignored: the resfd6 is only used if it is 
+  // not the error return code. -- REW
 #endif
   option = 1;
   if (setsockopt(resfd,SOL_SOCKET,SO_BROADCAST,(char *)&option,sizeof(option))) {