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5fbef188 | 1 | /* Set a host configuration item kept as the whole contents of a file. |
04277e02 | 2 | Copyright (C) 1996-2019 Free Software Foundation, Inc. |
c84142e8 UD |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
41bdb6e2 AJ |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
c84142e8 UD |
9 | |
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 | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
c84142e8 | 14 | |
41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 | 16 | License along with the GNU C Library; if not, see |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
5fbef188 | 18 | |
a5d96b25 | 19 | #include <fcntl.h> |
5fbef188 RM |
20 | #include <hurd.h> |
21 | #include "hurdhost.h" | |
22 | ||
23 | ssize_t | |
24 | _hurd_set_host_config (const char *item, const char *value, size_t valuelen) | |
25 | { | |
26 | error_t err; | |
27 | mach_msg_type_number_t nwrote; | |
28 | file_t new, dir; | |
043032f4 | 29 | char *name; |
5fbef188 | 30 | |
043032f4 | 31 | dir = __file_name_split (item, &name); |
5fbef188 RM |
32 | if (dir == MACH_PORT_NULL) |
33 | return -1; | |
34 | ||
35 | /* Create a new node. */ | |
0bfb4441 | 36 | err = __dir_mkfile (dir, O_WRONLY, 0644, &new); |
5fbef188 RM |
37 | if (! err) |
38 | { | |
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. */ | |
043032f4 | 43 | err = __dir_link (dir, new, name, 0); |
5fbef188 RM |
44 | __mach_port_deallocate (__mach_task_self (), new); |
45 | } | |
46 | __mach_port_deallocate (__mach_task_self (), dir); | |
47 | ||
043032f4 | 48 | return err ? __hurd_fail (err) : nwrote; |
5fbef188 | 49 | } |