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use O_CLOEXEC to open semaphore files in sem_open

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This commit is contained in:
Rich Felker 2012-09-29 16:48:52 -04:00
parent c983e6415a
commit 39f296a95b
1 changed files with 2 additions and 2 deletions
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4
src/thread/sem_open.c
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@ -75,9 +75,9 @@ sem_t *sem_open(const char *name, int flags, ...)
clock_gettime(CLOCK_REALTIME, &ts);
snprintf(tmp, sizeof(tmp), "/dev/shm/%p-%p-%d-%d",
&name, name, (int)getpid(), (int)ts.tv_nsec);
tfd = open(tmp, O_CREAT|O_EXCL|O_RDWR, mode);
tfd = open(tmp, O_CREAT|O_EXCL|O_RDWR|O_CLOEXEC, mode);
if (tfd<0) return SEM_FAILED;
dir = open("/dev/shm", O_DIRECTORY|O_RDONLY);
dir = open("/dev/shm", O_DIRECTORY|O_RDONLY|O_CLOEXEC);
if (dir<0 || write(tfd,&newsem,sizeof newsem)!=sizeof newsem) {
if (dir >= 0) close(dir);
close(tfd);