1/* Example for creating a struct dirent object for use with glob.
2 Copyright (C) 2016-2024 Free Software Foundation, Inc.
3
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, see <https://www.gnu.org/licenses/>.
16*/
17
18#include <dirent.h>
19#include <errno.h>
20#include <stddef.h>
21#include <stdlib.h>
22#include <string.h>
23
24struct dirent *
25mkdirent (const char *name)
26{
27 size_t dirent_size = offsetof (struct dirent, d_name) + 1;
28 size_t name_length = strlen (name);
29 size_t total_size = dirent_size + name_length;
30 if (total_size < dirent_size)
31 {
32 errno = ENOMEM;
33 return NULL;
34 }
35 struct dirent *result = malloc (size: total_size);
36 if (result == NULL)
37 return NULL;
38 result->d_type = DT_UNKNOWN;
39 result->d_ino = 1; /* Do not skip this entry. */
40 memcpy (result->d_name, name, name_length + 1);
41 return result;
42}
43

source code of glibc/manual/examples/mkdirent.c