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I report a problem about shmget(). (I'm using FreeBSD-2.1.0R)

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int shmget(key_t key, int size, int shmflg);

If the 'key' has already existed in the system and set 'shmflg'
as '(IPC_CREAT|IPC_EXC)', then shmget() must return the error 'EEXIST'.

Submitted by:	m_tanaka@pa.yokogawa.co.jp (Mihoko Tanaka)
This commit is contained in:
Joerg Wunsch 1995-12-26 16:03:32 +00:00
parent 3eafdede1c
commit 0209e040ba
1 changed files with 2 additions and 2 deletions
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4
sys/kern/sysv_shm.c
View File

@ -1,4 +1,4 @@
/* $Id: sysv_shm.c,v 1.14 1995/12/14 08:31:54 phk Exp $ */
/* $Id: sysv_shm.c,v 1.15 1995/12/15 05:00:31 peter Exp $ */
/* $NetBSD: sysv_shm.c,v 1.23 1994/07/04 23:25:12 glass Exp $ */
/*
@ -439,7 +439,7 @@ shmget_existing(p, uap, mode, segnum, retval)
return error;
if (uap->size && uap->size > shmseg->shm_segsz)
return EINVAL;
if (uap->shmflg & (IPC_CREAT | IPC_EXCL) == (IPC_CREAT | IPC_EXCL))
if ((uap->shmflg & (IPC_CREAT | IPC_EXCL)) == (IPC_CREAT | IPC_EXCL))
return EEXIST;
*retval = IXSEQ_TO_IPCID(segnum, shmseg->shm_perm);
return 0;