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Use ftok() for semget(), and only lower mode bits

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This commit is contained in:
Hallvard Furuseth 2015-06-02 20:51:03 +02:00
parent 68f64aa104
commit e95d57f39c
1 changed files with 4 additions and 1 deletions
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5
libraries/liblmdb/mdb.c
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@ -4548,7 +4548,10 @@ mdb_env_setup_locks(MDB_env *env, char *lpath, int mode, int *excl)
if (!env->me_wmutex) goto fail_errno;
#elif defined(MDB_USE_SYSV_SEM)
unsigned short vals[2] = {1, 1};
semid = semget(IPC_PRIVATE, 2, mode);
key_t key = ftok(lpath, 'M');
if (key == -1)
goto fail_errno;
semid = semget(key, 2, (mode & 0777) | IPC_CREAT);
if (semid < 0)
goto fail_errno;
semu.array = vals;