1 /* lchmod -- Change the protections of a file or symbolic link. Hurd version.
2 Copyright (C) 2002-2022 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 <https://www.gnu.org/licenses/>. */
18
19 #include <errno.h>
20 #include <stddef.h>
21 #include <sys/stat.h>
22 #include <fcntl.h>
23 #include <hurd.h>
24
25 /* Change the protections of FILE to MODE. */
26 int
lchmod(const char * file,mode_t mode)27 lchmod (const char *file, mode_t mode)
28 {
29 error_t err;
30 file_t port = __file_name_lookup (file, O_NOLINK, 0);
31 if (port == MACH_PORT_NULL)
32 return -1;
33 err = __file_chmod (port, mode);
34 __mach_port_deallocate (__mach_task_self (), port);
35 if (err)
36 return __hurd_fail (err);
37 return 0;
38 }
39