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More strict permission for IPC shm and sem

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Use more strict permission for IPC shm and sem, too.
The permission follows to the value of ipc_perm config option, as
default 0600.
This commit is contained in:
Takashi Iwai 2005-05-19 14:36:04 +00:00
parent 13c7364997
commit 4e1723f9a5
2 changed files with 8 additions and 5 deletions
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5
src/pcm/pcm_dmix.c
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@ -71,11 +71,12 @@ static int shm_sum_create_or_connect(snd_pcm_direct_t *dmix)
dmix->shmptr->s.buffer_size *
sizeof(signed int);
retryshm:
dmix->u.dmix.shmid_sum = shmget(dmix->ipc_key + 1, size, IPC_CREAT | 0666);
dmix->u.dmix.shmid_sum = shmget(dmix->ipc_key + 1, size,
IPC_CREAT | dmix->ipc_perm);
err = -errno;
if (dmix->u.dmix.shmid_sum < 0){
if (errno == EINVAL)
if ((tmpid = shmget(dmix->ipc_key + 1, 0, 0666)) != -1)
if ((tmpid = shmget(dmix->ipc_key + 1, 0, dmix->ipc_perm)) != -1)
if (!shmctl(tmpid, IPC_STAT, &buf))
if (!buf.shm_nattch)
/* no users so destroy the segment */