1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
/* Set a host configuration item kept as the whole contents of a file.
Copyright (C) 1996-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <fcntl.h>
#include <hurd.h>
#include "hurdhost.h"
ssize_t
_hurd_set_host_config (const char *item, const char *value, size_t valuelen)
{
error_t err;
mach_msg_type_number_t nwrote;
file_t new, dir;
char *name;
dir = __file_name_split (item, &name);
if (dir == MACH_PORT_NULL)
return -1;
/* Create a new node. */
err = __dir_mkfile (dir, O_WRONLY, 0644, &new);
if (! err)
{
/* Write the contents. */
err = __io_write (new, value, valuelen, 0, &nwrote);
if (! err)
/* Atomically link the new node onto the name. */
err = __dir_link (dir, new, name, 0);
__mach_port_deallocate (__mach_task_self (), new);
}
__mach_port_deallocate (__mach_task_self (), dir);
return err ? __hurd_fail (err) : nwrote;
}
|
