72 lines
1.8 KiB
C
72 lines
1.8 KiB
C
/* Test of ftello() function.
|
|
Copyright (C) 2011-2025 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 test_exit_status;
|
|
}
|