1 /* unlinkat -- Remove a name relative to an open directory. Hurd version.
2 Copyright (C) 2006-2022 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 <fcntl.h>
21 #include <stddef.h>
22 #include <unistd.h>
23 #include <hurd.h>
24 #include <hurd/fd.h>
25
26
27 /* Remove the link named NAME. */
28 int
unlinkat(int fd,const char * name,int flag)29 unlinkat (int fd, const char *name, int flag)
30 {
31 error_t err;
32 file_t dir;
33 const char *file;
34
35 if ((flag &~ AT_REMOVEDIR) != 0)
36 {
37 __set_errno (EINVAL);
38 return -1;
39 }
40
41 dir = __directory_name_split_at (fd, name, (char **) &file);
42 if (dir == MACH_PORT_NULL)
43 return -1;
44
45 err = ((flag & AT_REMOVEDIR) ? __dir_rmdir : __dir_unlink) (dir, file);
46 __mach_port_deallocate (__mach_task_self (), dir);
47
48 if (err)
49 return __hurd_fail (err);
50 return 0;
51 }
52