1/* Simple Program to List a Directory
2 Copyright (C) 1991-2022 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/*@group*/
19#include <stdio.h>
20#include <sys/types.h>
21#include <dirent.h>
22/*@end group*/
23
24int
25main (void)
26{
27 DIR *dp;
28 struct dirent *ep;
29
30 dp = opendir (name: "./");
31 if (dp != NULL)
32 {
33 while (ep = readdir (dirp: dp))
34 puts (s: ep->d_name);
35 (void) closedir (dirp: dp);
36 }
37 else
38 perror ("Couldn't open the directory");
39
40 return 0;
41}
42

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