Update.
[glibc.git] / hurd / set-host.c
blobeee50fc08ed03fd99f3fdb33a2927a07f6792a2c
1 /* Set a host configuration item kept as the whole contents of a file.
2 Copyright (C) 1996, 1997 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public License as
7 published by the Free Software Foundation; either version 2 of the
8 License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Library General Public License for more details.
15 You should have received a copy of the GNU Library General Public
16 License along with the GNU C Library; see the file COPYING.LIB. If not,
17 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA. */
20 #include <fcntl.h>
21 #include <hurd.h>
22 #include "hurdhost.h"
24 ssize_t
25 _hurd_set_host_config (const char *item, const char *value, size_t valuelen)
27 error_t err;
28 mach_msg_type_number_t nwrote;
29 file_t new, dir;
31 dir = __file_name_split (item, (char **)&item);
32 if (dir == MACH_PORT_NULL)
33 return -1;
35 /* Create a new node. */
36 err = __dir_mkfile (dir, O_CREAT|O_TRUNC, 0600, &new);
37 if (! err)
39 /* Write the contents. */
40 err = __io_write (new, value, valuelen, 0, &nwrote);
41 if (! err)
42 /* Atomically link the new node onto the name. */
43 err = __dir_link (dir, new, item, 0);
44 __mach_port_deallocate (__mach_task_self (), new);
46 __mach_port_deallocate (__mach_task_self (), dir);
48 return nwrote;