static int
linux32_shmctl(struct lwp *l, const struct linux32_sys_ipc_args *uap,
register_t *retval)
{
int shmid, cmd, error;
struct shmid_ds bs;
struct linux32_shmid_ds ls;
struct linux32_shmid64_ds ls64;
shmid = SCARG(uap, a1);
cmd = SCARG(uap, a2);
switch (cmd & ~LINUX32_IPC_64) {
case LINUX32_SHM_STAT:
return ENOSYS;
case LINUX32_IPC_STAT:
error = shmctl1(l, shmid, IPC_STAT, &bs);
if (error != 0)
return error;
if (cmd & LINUX32_IPC_64) {
bsd_to_linux32_shmid64_ds(&bs, &ls64);
error = copyout(&ls64, SCARG_P32(uap, ptr), sizeof ls64);
} else {
bsd_to_linux32_shmid_ds(&bs, &ls);
error = copyout(&ls, SCARG_P32(uap, ptr), sizeof ls);
}
return error;
case LINUX32_IPC_SET:
if (cmd & LINUX32_IPC_64) {
error = copyin(SCARG_P32(uap, ptr), &ls64, sizeof ls64);
linux32_to_bsd_shmid64_ds(&ls64, &bs);
} else {
error = copyin(SCARG_P32(uap, ptr), &ls, sizeof ls);
linux32_to_bsd_shmid_ds(&ls, &bs);
}
if (error != 0)
return error;
return shmctl1(l, shmid, IPC_SET, &bs);
case LINUX32_IPC_RMID:
return shmctl1(l, shmid, IPC_RMID, NULL);
case LINUX32_SHM_LOCK:
return shmctl1(l, shmid, SHM_LOCK, NULL);
case LINUX32_SHM_UNLOCK:
return shmctl1(l, shmid, SHM_UNLOCK, NULL);
case LINUX32_IPC_INFO:
case LINUX32_SHM_INFO:
return ENOSYS;
default:
return EINVAL;
}
}
int
netbsd32___shmctl13(struct lwp *l, const struct netbsd32___shmctl13_args *uap, register_t *retval)
{
/* {
syscallarg(int) shmid;
syscallarg(int) cmd;
syscallarg(netbsd32_shmid_dsp_t) buf;
} */
struct shmid_ds ds;
struct netbsd32_shmid_ds ds32;
int error, cmd;
cmd = SCARG(uap, cmd);
if (cmd == IPC_SET) {
error = copyin(SCARG_P32(uap, buf), &ds32, sizeof(ds32));
if (error)
return error;
netbsd32_to_shmid_ds(&ds32, &ds);
}
error = shmctl1(l, SCARG(uap, shmid), cmd,
(cmd == IPC_SET || cmd == IPC_STAT) ? &ds : NULL);
if (error == 0 && cmd == IPC_STAT) {
netbsd32_from_shmid_ds(&ds, &ds32);
error = copyout(&ds32, SCARG_P32(uap, buf), sizeof(ds32));
}
return error;
}
int
sys_shmctl(struct proc *p, void *v, register_t *retval)
{
struct sys_shmctl_args /* {
syscallarg(int) shmid;
syscallarg(int) cmd;
syscallarg(struct shmid_ds *) buf;
} */ *uap = v;
return (shmctl1(p, SCARG(uap, shmid), SCARG(uap, cmd),
(caddr_t)SCARG(uap, buf), copyin, copyout));
}
int
ibcs2_sys_shmsys(struct lwp *l, const struct ibcs2_sys_shmsys_args *uap, register_t *retval)
{
#ifdef SYSVSHM
/* {
syscallarg(int) which;
syscallarg(int) a2;
syscallarg(int) a3;
syscallarg(int) a4;
} */
struct shmid_ds shmbuf;
struct ibcs2_shmid_ds *isp, ishmbuf;
int cmd, error;
switch (SCARG(uap, which)) {
case 0: /* shmat */
break;
case 1: /* shmctl */
cmd = SCARG(uap, a3);
isp = (struct ibcs2_shmid_ds *)SCARG(uap, a4);
if (cmd == IPC_SET) {
error = copyin(isp, &ishmbuf, sizeof(ishmbuf));
if (error)
return error;
cvt_ishmid2shmid(&ishmbuf, &shmbuf);
}
error = shmctl1(l, SCARG(uap, a2), cmd,
(cmd == IPC_SET || cmd == IPC_STAT) ? &shmbuf : NULL);
if (error == 0 && cmd == IPC_STAT) {
cvt_shmid2ishmid(&shmbuf, &ishmbuf);
error = copyout(&ishmbuf, isp, sizeof(ishmbuf));
}
return error;
case 2: /* shmdt */
break;
case 3: /* shmget */
break;
default:
return EINVAL;
}
return compat_10_sys_shmsys(l, (const void *)uap, retval);
#else
return EINVAL;
#endif
}