| Rich Felker | 0b44a03 | 2011-02-12 00:22:29 -0500 | [diff] [blame] | 1 | #include <sys/sem.h> |
| Rich Felker | 062f40e | 2013-06-28 23:57:58 -0400 | [diff] [blame] | 2 | #include <limits.h> |
| 3 | #include <errno.h> |
| Rich Felker | 0b44a03 | 2011-02-12 00:22:29 -0500 | [diff] [blame] | 4 | #include "syscall.h" |
| 5 | #include "ipc.h" |
| 6 | |
| 7 | int semget(key_t key, int n, int fl) |
| 8 | { |
| Rich Felker | 062f40e | 2013-06-28 23:57:58 -0400 | [diff] [blame] | 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); |
| Rich Felker | c2cd25b | 2011-04-06 20:32:53 -0400 | [diff] [blame] | 14 | #ifdef SYS_semget |
| Rich Felker | aa398f5 | 2011-03-20 00:16:43 -0400 | [diff] [blame] | 15 | return syscall(SYS_semget, key, n, fl); |
| Rich Felker | 0b44a03 | 2011-02-12 00:22:29 -0500 | [diff] [blame] | 16 | #else |
| Rich Felker | aa398f5 | 2011-03-20 00:16:43 -0400 | [diff] [blame] | 17 | return syscall(SYS_ipc, IPCOP_semget, key, n, fl); |
| Rich Felker | 0b44a03 | 2011-02-12 00:22:29 -0500 | [diff] [blame] | 18 | #endif |
| 19 | } |