From: Lonnie Abelbeck <lonnie@abelbeck.com>
Date: Sun, 21 Oct 2018 13:47:44 +0000 (-0500)
Subject: Fix hang with '-6', with ipv6 kernel module, but not loaded
X-Git-Url: https://git.gsnw.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=03e050a395415ce079efb64848533dc6a3e37bb3;p=fping.git

Fix hang with '-6', with ipv6 kernel module, but not loaded
---

diff --git a/src/fping.c b/src/fping.c
index a4e45a1..f215a70 100644
--- a/src/fping.c
+++ b/src/fping.c
@@ -687,11 +687,11 @@ int main(int argc, char** argv)
 
     /* validate various option settings */
 
-    if (socket4 < 0
-#ifdef IPV6
-       && socket6 < 0
+#ifndef IPV6
+    if (socket4 < 0) {
+#else
+    if ((socket4 < 0 && socket6 < 0) || (hints_ai_family == AF_INET6 && socket6 < 0)) {
 #endif
-    ) {
         crash_and_burn("can't create socket (must run as root?)");
     }