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authorin2 <in2@63ad8ddf-47c3-0310-b6dd-a9e9d9715204>2002-07-01 02:16:33 +0800
committerin2 <in2@63ad8ddf-47c3-0310-b6dd-a9e9d9715204>2002-07-01 02:16:33 +0800
commitfeacdd104da0b2493c683c9b0536d957499a480a (patch)
tree33e6976326346a9eb4188e61010e0eedbe76d68e /util/shmctl.c
parente4ee6ceb85fbbc243bbad08d7fb16c489928012f (diff)
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avoid utmp->friendtotal error
git-svn-id: http://opensvn.csie.org/pttbbs/pttbbs/trunk/pttbbs@397 63ad8ddf-47c3-0310-b6dd-a9e9d9715204
Diffstat (limited to 'util/shmctl.c')
-rw-r--r--util/shmctl.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/util/shmctl.c b/util/shmctl.c
index 2ce7982b..348b6024 100644
--- a/util/shmctl.c
+++ b/util/shmctl.c
@@ -1,4 +1,4 @@
-/* $Id: shmctl.c,v 1.22 2002/06/26 01:57:49 in2 Exp $ */
+/* $Id: shmctl.c,v 1.23 2002/06/30 18:16:33 in2 Exp $ */
#include "bbs.h"
extern SHM_t *SHM;
@@ -9,6 +9,8 @@ int logout_friend_online(userinfo_t *utmp)
int offset=(int) (utmp - &SHM->uinfo[0]);
userinfo_t *ui;
while(utmp->friendtotal){
+ if( !(0 <= utmp->friendtotal && utmp->friendtotal < MAX_FRIEND) )
+ return 1;
i = utmp->friendtotal-1;
j = (utmp->friend_online[i] & 0xFFFFFF);
if( !(0 <= j && j < MAX_ACTIVE) )