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