1 #include <sys/msg.h>
2 #include <endian.h>
3 #include <unsupported_api.h>
4
5 #include "syscall.h"
6 #include "ipc.h"
7
8 #if __BYTE_ORDER != __BIG_ENDIAN
9 #undef SYSCALL_IPC_BROKEN_MODE
10 #endif
11
msgctl(int q,int cmd,struct msqid_ds * buf)12 int msgctl(int q, int cmd, struct msqid_ds *buf)
13 {
14 #if IPC_TIME64
15 struct msqid_ds out, *orig;
16 if (cmd&IPC_TIME64) {
17 out = (struct msqid_ds){0};
18 orig = buf;
19 buf = &out;
20 }
21 #endif
22 unsupported_api(__FUNCTION__);
23 #ifdef SYSCALL_IPC_BROKEN_MODE
24 struct msqid_ds tmp;
25 if (cmd == IPC_SET) {
26 tmp = *buf;
27 tmp.msg_perm.mode *= 0x10000U;
28 buf = &tmp;
29 }
30 #endif
31 #ifndef SYS_ipc
32 int r = __syscall(SYS_msgctl, q, IPC_CMD(cmd), buf);
33 #else
34 int r = __syscall(SYS_ipc, IPCOP_msgctl, q, IPC_CMD(cmd), 0, buf, 0);
35 #endif
36 #ifdef SYSCALL_IPC_BROKEN_MODE
37 if (r >= 0) switch (cmd | IPC_TIME64) {
38 case IPC_STAT:
39 case MSG_STAT:
40 case MSG_STAT_ANY:
41 buf->msg_perm.mode >>= 16;
42 }
43 #endif
44 #if IPC_TIME64
45 if (r >= 0 && (cmd&IPC_TIME64)) {
46 buf = orig;
47 *buf = out;
48 IPC_HILO(buf, msg_stime);
49 IPC_HILO(buf, msg_rtime);
50 IPC_HILO(buf, msg_ctime);
51 }
52 #endif
53 return __syscall_ret(r);
54 }
55