1 /* Change owner and group of a file relative to open directory. Hurd version.
2 Copyright (C) 2006-2021 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 <fcntl.h>
21 #include <stddef.h>
22 #include <unistd.h>
23 #include <sys/types.h>
24 #include <hurd.h>
25 #include <hurd/fd.h>
26
27 /* Change the owner and group of FILE. */
28 int
fchownat(int fd,const char * file,uid_t owner,gid_t group,int flag)29 fchownat (int fd, const char *file, uid_t owner, gid_t group, int flag)
30 {
31 error_t err;
32 file_t port = __file_name_lookup_at (fd, flag, file, 0, 0);
33 if (port == MACH_PORT_NULL)
34 return -1;
35 err = __file_chown (port, owner, group);
36 __mach_port_deallocate (__mach_task_self (), port);
37 if (err)
38 return __hurd_fail (err);
39 return 0;
40 }
41