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#include <sys/shm.h>
#include <endian.h>
#include "syscall.h"
#include "ipc.h"
#if __BYTE_ORDER != __BIG_ENDIAN
#undef SYSCALL_IPC_BROKEN_MODE
#endif
int shmctl(int id, int cmd, struct shmid_ds *buf)
{
#if IPC_TIME64
struct shmid_ds out, *orig;
if (cmd&IPC_TIME64) {
out = (struct shmid_ds){0};
orig = buf;
buf = &out;
}
#endif
#ifdef SYSCALL_IPC_BROKEN_MODE
struct shmid_ds tmp;
if (cmd == IPC_SET) {
tmp = *buf;
tmp.shm_perm.mode *= 0x10000U;
buf = &tmp;
}
#endif
#ifndef SYS_ipc
int r = __syscall(SYS_shmctl, id, IPC_CMD(cmd), buf);
#else
int r = __syscall(SYS_ipc, IPCOP_shmctl, id, IPC_CMD(cmd), 0, buf, 0);
#endif
#ifdef SYSCALL_IPC_BROKEN_MODE
if (r >= 0) switch (cmd | IPC_TIME64) {
case IPC_STAT:
case SHM_STAT:
case SHM_STAT_ANY:
buf->shm_perm.mode >>= 16;
}
#endif
#if IPC_TIME64
if (r >= 0 && (cmd&IPC_TIME64)) {
buf = orig;
*buf = out;
IPC_HILO(buf, shm_atime);
IPC_HILO(buf, shm_dtime);
IPC_HILO(buf, shm_ctime);
}
#endif
return __syscall_ret(r);
}
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