1 #include <sys/sem.h>
2 #include <limits.h>
3 #include <errno.h>
4 #include <unsupported_api.h>
5
6 #include "syscall.h"
7 #include "ipc.h"
8
semget(key_t key,int n,int fl)9 int semget(key_t key, int n, int fl)
10 {
11 /* The kernel uses the wrong type for the sem_nsems member
12 * of struct semid_ds, and thus might not check that the
13 * n fits in the correct (per POSIX) userspace type, so
14 * we have to check here. */
15 unsupported_api(__FUNCTION__);
16 if (n > USHRT_MAX) return __syscall_ret(-EINVAL);
17 #ifndef SYS_ipc
18 return syscall(SYS_semget, key, n, fl);
19 #else
20 return syscall(SYS_ipc, IPCOP_semget, key, n, fl);
21 #endif
22 }
23