From a0788ed70447a75a42ed2cca63a49f40be72149d Mon Sep 17 00:00:00 2001
From: in2 <in2@63ad8ddf-47c3-0310-b6dd-a9e9d9715204>
Date: Wed, 22 May 2002 15:42:26 +0000
Subject: avoid search_ulistn from -1 when there's nobody online

git-svn-id: http://opensvn.csie.org/pttbbs/pttbbs/trunk/pttbbs@187 63ad8ddf-47c3-0310-b6dd-a9e9d9715204
---
 mbbsd/cache.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/mbbsd/cache.c b/mbbsd/cache.c
index ec85a4db..9f3dab99 100644
--- a/mbbsd/cache.c
+++ b/mbbsd/cache.c
@@ -1,4 +1,4 @@
-/* $Id: cache.c,v 1.25 2002/05/13 10:00:17 ptt Exp $ */
+/* $Id: cache.c,v 1.26 2002/05/22 15:42:26 in2 Exp $ */
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -463,6 +463,8 @@ extern int usernum;
 userinfo_t *search_ulist_pid(int pid) {
     register int i=0, j, start = 0, end = utmpshm->number - 1;
     register userinfo_t **ulist;
+    if( end == -1 )
+	return NULL;
     ulist=utmpshm->sorted[utmpshm->currsorted][7];
     for(i=((start+end)/2);  ;i=(start+end)/2)
      {
-- 
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