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https://github.com/samba-team/samba.git
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868c81eefa
Code from Don Badrak <dbadrak@census.gov> Jeremy. (This used to be commit 773d6e504b1ac97f0d8136002ace2c0c0771a163)
47 lines
865 B
C
47 lines
865 B
C
/* this tests if we need to define SGI_SEMUN_HACK
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if we're using gcc on IRIX 6.5.x. */
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#if defined(HAVE_UNISTD_H)
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#include <unistd.h>
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#endif
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/ipc.h>
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#include <sys/shm.h>
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#include <sys/sem.h>
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#ifndef HAVE_UNION_SEMUN
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union semun {
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int val;
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struct semid_ds *buf;
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unsigned short *array;
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};
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#endif
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union semun_hack {
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int val;
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struct semid_ds *buf;
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unsigned short *array;
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char __dummy[5];
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};
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main() {
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struct semid_ds sem_ds;
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union semun_hack suh;
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union semun su;
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int sem_id, ret;
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ret = 1;
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sem_id = semget(0xdead6666,1,IPC_CREAT|IPC_EXCL|0777);
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su.buf = &sem_ds;
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suh.buf = &sem_ds;
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if (sem_id != -1) {
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if ((semctl(sem_id, 0, IPC_STAT, su) == -1) &&
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(semctl(sem_id, 0, IPC_STAT, suh) != -1)) {
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ret = 0;
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}
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}
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semctl(sem_id, 0, IPC_RMID, 0);
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return ret;
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}
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