From 9079b678ee660ccdae6a129dc3e6adbb47fea756 Mon Sep 17 00:00:00 2001
From: Theodore Tso <tytso@mit.edu>
Date: Tue, 21 Sep 1993 23:23:17 +0000
Subject: [PATCH] Don't check file descriptor for secondary port if it is not
 defined

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@2646 dc483132-0cff-0310-8789-dd5450dbe970
---
 src/kdc/network.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/kdc/network.c b/src/kdc/network.c
index faf9f36f3..6dbcad642 100644
--- a/src/kdc/network.c
+++ b/src/kdc/network.c
@@ -151,7 +151,7 @@ const char *prog;
 				break;
 		}
 	}
-	if (FD_ISSET(sec_udp_port_fd, &readfds)) {
+	if ((sec_udp_port_fd > 0) && FD_ISSET(sec_udp_port_fd, &readfds)) {
 		retval = process_packet(sec_udp_port_fd, prog, 1);
 		if (retval) {
 			if (errcount++ > 3)
-- 
2.26.2