blob: 590c17b67818074d30e110c1bd5b1f990d1cf773 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
/* Test of ftello() function.
Copyright (C) 2011-2023 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#include <config.h>
#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include "macros.h"
int
main (int argc, char **argv)
{
const char *filename = argv[1];
/* Test that ftello() sets errno if someone else closes the stream
fd behind the back of stdio. */
{
FILE *fp = fopen (filename, "r");
ASSERT (fp != NULL);
#if !defined __ANDROID__ /* fdsan */
setvbuf (fp, NULL, _IONBF, 0);
ASSERT (close (fileno (fp)) == 0);
errno = 0;
ASSERT (ftello (fp) == (off_t)-1);
ASSERT (errno == EBADF);
#endif
fclose (fp);
}
/* Test that ftello() sets errno if the stream was constructed with
an invalid file descriptor. */
{
FILE *fp = fdopen (-1, "w");
if (fp != NULL)
{
errno = 0;
ASSERT (ftello (fp) == (off_t)-1);
ASSERT (errno == EBADF);
fclose (fp);
}
}
{
FILE *fp;
close (99);
fp = fdopen (99, "w");
if (fp != NULL)
{
errno = 0;
ASSERT (ftello (fp) == (off_t)-1);
ASSERT (errno == EBADF);
fclose (fp);
}
}
return 0;
}
|
