From f5fb6bd02a1f9d107eabab24b5496a54651a4462 Mon Sep 17 00:00:00 2001
From: Brian Somers <brian@FreeBSD.org>
Date: Fri, 19 Dec 1997 04:49:53 +0000
Subject: [PATCH] If the peer asks for IP 0.0.0.0, choose an IP ourselves
 without looking for it in our IP list (and if found, trying to ifconfig it!).

---
 usr.sbin/ppp/ipcp.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/usr.sbin/ppp/ipcp.c b/usr.sbin/ppp/ipcp.c
index 624ea88e652a..eedef010bb9e 100644
--- a/usr.sbin/ppp/ipcp.c
+++ b/usr.sbin/ppp/ipcp.c
@@ -17,7 +17,7 @@
  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  *
- * $Id: ipcp.c,v 1.41 1997/12/06 22:43:58 brian Exp $
+ * $Id: ipcp.c,v 1.42 1997/12/13 02:37:24 brian Exp $
  *
  *	TODO:
  *		o More RFC1772 backwoard compatibility
@@ -382,7 +382,8 @@ IpcpDecodeConfig(u_char * cp, int plen, int mode_type)
       switch (mode_type) {
       case MODE_REQ:
         if (iplist_isvalid(&DefHisChoice)) {
-          if (iplist_ip2pos(&DefHisChoice, ipaddr) < 0 ||
+          if (ipaddr.s_addr == INADDR_ANY ||
+              iplist_ip2pos(&DefHisChoice, ipaddr) < 0 ||
               OsTrySetIpaddress(DefMyAddress.ipaddr, ipaddr) != 0) {
             LogPrintf(LogIPCP, "%s: Address invalid or already in use\n",
                       inet_ntoa(ipaddr));