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[glibc.git] / sysdeps / mach / hurd / settimeofday.c
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1 /* Copyright (C) 1991, 92, 93, 94, 95, 97 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Library General Public License as
6 published by the Free Software Foundation; either version 2 of the
7 License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Library General Public License for more details.
14 You should have received a copy of the GNU Library General Public
15 License along with the GNU C Library; see the file COPYING.LIB. If not,
16 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 Boston, MA 02111-1307, USA. */
19 #include <errno.h>
20 #include <sys/time.h>
21 #include <hurd.h>
22 #include <hurd/port.h>
24 /* Set the current time of day and timezone information.
25 This call is restricted to the super-user. */
26 int
27 __settimeofday (tv, tz)
28 const struct timeval *tv;
29 const struct timezone *tz;
31 error_t err;
32 mach_port_t hostpriv, devmaster;
34 if (tz != NULL)
36 errno = ENOSYS;
37 return -1;
40 if (err = __USEPORT (PROC, __proc_getprivports (port,
41 &hostpriv, &devmaster)))
42 return __hurd_fail (err);
43 __mach_port_deallocate (__mach_task_self (), devmaster);
45 /* `time_value_t' and `struct timeval' are in fact identical with the
46 names changed. */
47 err = __host_set_time (hostpriv, *(time_value_t *) tv);
48 __mach_port_deallocate (__mach_task_self (), hostpriv);
50 if (err)
51 return __hurd_fail (err);
53 return 0;
56 weak_alias (__settimeofday, settimeofday)