52 lines
1002 B
C
52 lines
1002 B
C
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#include <sys/msg.h>
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#include <endian.h>
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#include "syscall.h"
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#include "ipc.h"
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#if __BYTE_ORDER != __BIG_ENDIAN
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#undef SYSCALL_IPC_BROKEN_MODE
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#endif
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int msgctl(int q, int cmd, struct msqid_ds *buf)
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{
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#if IPC_TIME64
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struct msqid_ds out, *orig;
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if (cmd&IPC_TIME64) {
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out = (struct msqid_ds){0};
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orig = buf;
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buf = &out;
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}
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#endif
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#ifdef SYSCALL_IPC_BROKEN_MODE
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struct msqid_ds tmp;
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if (cmd == IPC_SET) {
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tmp = *buf;
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tmp.msg_perm.mode *= 0x10000U;
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buf = &tmp;
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}
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#endif
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#ifndef SYS_ipc
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int r = __syscall(SYS_msgctl, q, IPC_CMD(cmd), buf);
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#else
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int r = __syscall(SYS_ipc, IPCOP_msgctl, q, IPC_CMD(cmd), 0, buf, 0);
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#endif
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#ifdef SYSCALL_IPC_BROKEN_MODE
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if (r >= 0) switch (cmd | IPC_TIME64) {
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case IPC_STAT:
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case MSG_STAT:
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case MSG_STAT_ANY:
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buf->msg_perm.mode >>= 16;
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}
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#endif
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#if IPC_TIME64
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if (r >= 0 && (cmd&IPC_TIME64)) {
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buf = orig;
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*buf = out;
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IPC_HILO(buf, msg_stime);
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IPC_HILO(buf, msg_rtime);
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IPC_HILO(buf, msg_ctime);
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}
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#endif
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return __syscall_ret(r);
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}
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