1 /* Test of fseeko() function.
2 Copyright (C) 2011-2021 Free Software Foundation, Inc.
3
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3 of the License, or
7 (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 /* Written by Eric Blake <eblake@redhat.com>, 2011. */
18
19 #include <config.h>
20
21 #include <stdio.h>
22
23 #include <stdlib.h>
24
25 #include "macros.h"
26
27 int
main(int argc,char ** argv)28 main (int argc, char **argv)
29 {
30 int do_initial_ftell = atoi (argv[1]);
31 const char *filename = argv[2];
32 FILE *fp = fopen (filename, "r");
33 ASSERT (fp != NULL);
34
35 if (do_initial_ftell)
36 {
37 off_t pos = ftell (fp);
38 ASSERT (pos == 0);
39 }
40
41 ASSERT (fseeko (fp, 0, SEEK_END) == 0);
42
43 {
44 off_t pos = ftell (fp);
45 ASSERT (pos > 0);
46 }
47
48 ASSERT (fclose (fp) == 0);
49
50 return 0;
51 }
52