From: Ted Lemon <source@isc.org>
Date: Thu, 6 Mar 1997 07:06:08 +0000 (+0000)
Subject: Traversal of interface list to weed out bad interfaces was broken when I added the... 
X-Git-Tag: DHCP-970306~7
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=c800b2aa41c0a3c3a768d3acf596f175709e92f6;p=thirdparty%2Fdhcp.git

Traversal of interface list to weed out bad interfaces was broken when I added the dummy interface list - fix is to save the next pointer before weeding out interfaces.
---

diff --git a/common/dispatch.c b/common/dispatch.c
index 3ae4c0125..f0adbee43 100644
--- a/common/dispatch.c
+++ b/common/dispatch.c
@@ -42,7 +42,7 @@
 
 #ifndef lint
 static char copyright[] =
-"$Id: dispatch.c,v 1.36 1997/03/06 06:52:30 mellon Exp $ Copyright (c) 1995, 1996 The Internet Software Consortium.  All rights reserved.\n";
+"$Id: dispatch.c,v 1.37 1997/03/06 07:06:08 mellon Exp $ Copyright (c) 1995, 1996 The Internet Software Consortium.  All rights reserved.\n";
 #endif /* not lint */
 
 #include "dhcpd.h"
@@ -68,7 +68,7 @@ void discover_interfaces (state)
 	int state;
 {
 	struct interface_info *tmp;
-	struct interface_info *last;
+	struct interface_info *last, *next;
 	char buf [8192];
 	struct ifconf ic;
 	struct ifreq ifr;
@@ -292,7 +292,8 @@ void discover_interfaces (state)
 
 	/* Weed out the interfaces that did not have IP addresses. */
 	last = (struct interface_info *)0;
-	for (tmp = interfaces; tmp; tmp = tmp -> next) {
+	for (tmp = interfaces; tmp; tmp = next) {
+		next = tmp -> next;
 		if (!tmp -> ifp || !(tmp -> flags & INTERFACE_REQUESTED)) {
 			if ((tmp -> flags & INTERFACE_REQUESTED) != ir)
 				error ("%s: not found", tmp -> name);