lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame] | 1 | /* Set a host configuration item kept as the whole contents of a file. |
| 2 | Copyright (C) 1996-2015 Free Software Foundation, Inc. |
| 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 |
| 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. |
| 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 |
| 13 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with the GNU C Library; if not, see |
| 17 | <http://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | #include <fcntl.h> |
| 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; |
| 29 | char *name; |
| 30 | |
| 31 | dir = __file_name_split (item, &name); |
| 32 | if (dir == MACH_PORT_NULL) |
| 33 | return -1; |
| 34 | |
| 35 | /* Create a new node. */ |
| 36 | err = __dir_mkfile (dir, O_WRONLY, 0644, &new); |
| 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. */ |
| 43 | err = __dir_link (dir, new, name, 0); |
| 44 | __mach_port_deallocate (__mach_task_self (), new); |
| 45 | } |
| 46 | __mach_port_deallocate (__mach_task_self (), dir); |
| 47 | |
| 48 | return err ? __hurd_fail (err) : nwrote; |
| 49 | } |