/* Set the current time of day and timezone information.
This call is restricted to the super-user. */
int
__settimeofday (const struct timeval *tv, const struct timezone *tz)
{
error_t err;
mach_port_t hostpriv;
if (tz != NULL)
{
errno = ENOSYS;
return -1;
}
err = __get_privileged_ports (&hostpriv, NULL);
if (err)
return __hurd_fail (EPERM);
/* `time_value_t' and `struct timeval' are in fact identical with the
names changed. */
err = __host_set_time (hostpriv, *(time_value_t *) tv);
__mach_port_deallocate (__mach_task_self (), hostpriv);
if (err)
return __hurd_fail (err);
return 0;
}
int
ioperm (unsigned long int from, unsigned long int num, int turn_on)
{
#if ! HAVE_I386_IO_PERM_MODIFY
return __hurd_fail (ENOSYS);
#else
error_t err;
device_t devmaster;
/* With the device master port we get a capability that represents
this range of io ports. */
err = __get_privileged_ports (NULL, &devmaster);
if (! err)
{
io_perm_t perm;
err = __i386_io_perm_create (devmaster, from, from + num - 1, &perm);
__mach_port_deallocate (__mach_task_self (), devmaster);
if (! err)
{
/* Now we add or remove that set from our task's bitmap. */
err = __i386_io_perm_modify (__mach_task_self (), perm, turn_on);
__mach_port_deallocate (__mach_task_self (), perm);
}
if (err == MIG_BAD_ID) /* Old kernels don't have these RPCs. */
err = ENOSYS;
}
return err ? __hurd_fail (err) : 0;
#endif
}
int
mlock (const void *addr, size_t len)
{
mach_port_t hostpriv;
vm_address_t page;
error_t err;
err = __get_privileged_ports (&hostpriv, NULL);
if (err)
return __hurd_fail (EPERM);
page = trunc_page ((vm_address_t) addr);
len = round_page ((vm_address_t) addr + len) - page;
err = __vm_wire (hostpriv, __mach_task_self (), page, len,
VM_PROT_READ);
__mach_port_deallocate (__mach_task_self (), hostpriv);
return err ? __hurd_fail (err) : 0;
}
