From 7215f7de56c3d26487fcfe1a4e9b04c3d2b309a3 Mon Sep 17 00:00:00 2001
From: in2 <in2@63ad8ddf-47c3-0310-b6dd-a9e9d9715204>
Date: Fri, 23 Aug 2002 18:01:30 +0000
Subject: fix memory error

git-svn-id: http://opensvn.csie.org/pttbbs/pttbbs/trunk/pttbbs@488 63ad8ddf-47c3-0310-b6dd-a9e9d9715204
---
 mbbsd/cache.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

(limited to 'mbbsd/cache.c')

diff --git a/mbbsd/cache.c b/mbbsd/cache.c
index 7c4a1992..ccb8ff33 100644
--- a/mbbsd/cache.c
+++ b/mbbsd/cache.c
@@ -1,4 +1,4 @@
-/* $Id: cache.c,v 1.49 2002/08/20 02:42:36 in2 Exp $ */
+/* $Id: cache.c,v 1.50 2002/08/23 18:01:30 in2 Exp $ */
 #include "bbs.h"
 
 #ifndef __FreeBSD__
@@ -527,8 +527,11 @@ search_ulistn(int uid, int unum)
     for (i = ((start + end) / 2);; i = (start + end) / 2) {
 	j = uid - ulist[i]->uid;
 	if (j == 0) {
-	    for (; i > 0 && uid == ulist[i - 1]->uid; --i);	/* 指到第一筆 */
-	    if (ulist[i + unum - 1] != NULL && uid == ulist[i + unum - 1]->uid)
+	    for (; i > 0 && uid == ulist[i - 1]->uid; --i)
+		;/* 指到第一筆 */
+	    if ( i + unum - 1 >= 0 &&
+		 (ulist[i + unum - 1] != NULL &&
+		  uid == ulist[i + unum - 1]->uid) )
 		return (userinfo_t *) (ulist[i + unum - 1]);
 	    break;		/* 超過範圍 */
 	}
-- 
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