diff options
| author | Todd C. Miller <millert@cvs.openbsd.org> | 2002-12-22 04:52:11 +0000 |
|---|---|---|
| committer | Todd C. Miller <millert@cvs.openbsd.org> | 2002-12-22 04:52:11 +0000 |
| commit | 59e1c612a240cbd3e6e51cd0082ddf2353903b93 (patch) | |
| tree | 8e806c752b4e0f443b562f9fcc6b048b179fbe51 /sys | |
| parent | 1d5b8b61eae2446a2a084c07efff146a24514acf (diff) | |
Clear the high bit of ipc_perm.seq so msgget(3) never returns a
negative message queue id; Vladimir B.Grebenschikov
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/kern/sysv_msg.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/kern/sysv_msg.c b/sys/kern/sysv_msg.c index 33fdc915183..6126eabb83e 100644 --- a/sys/kern/sysv_msg.c +++ b/sys/kern/sysv_msg.c @@ -1,4 +1,4 @@ -/* $OpenBSD: sysv_msg.c,v 1.12 2002/03/14 01:27:05 millert Exp $ */ +/* $OpenBSD: sysv_msg.c,v 1.13 2002/12/22 04:52:10 millert Exp $ */ /* $NetBSD: sysv_msg.c,v 1.19 1996/02/09 19:00:18 christos Exp $ */ /* @@ -361,7 +361,7 @@ sys_msgget(p, v, retval) msqptr->msg_perm.gid = cred->cr_gid; msqptr->msg_perm.mode = (msgflg & 0777); /* Make sure that the returned msqid is unique */ - msqptr->msg_perm.seq++; + msqptr->msg_perm.seq = (msqptr->msg_perm.seq + 1) & 0x7fff; msqptr->msg_first = NULL; msqptr->msg_last = NULL; msqptr->msg_cbytes = 0; |