63 lines
1.6 KiB
C
63 lines
1.6 KiB
C
/* Test of freadptr() function.
|
|
Copyright (C) 2007-2025 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/>. */
|
|
|
|
/* Written by Bruno Haible <bruno@clisp.org>, 2007. */
|
|
|
|
#include <config.h>
|
|
|
|
#include "freadptr.h"
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
|
|
#include "macros.h"
|
|
|
|
static int
|
|
freadptrbufsize (FILE *fp)
|
|
{
|
|
size_t size = 0;
|
|
|
|
freadptr (fp, &size);
|
|
return size;
|
|
}
|
|
|
|
int
|
|
main (int argc, char **argv)
|
|
{
|
|
int nbytes = atoi (argv[1]);
|
|
if (nbytes > 0)
|
|
{
|
|
void *buf = malloc (nbytes);
|
|
ASSERT (fread (buf, 1, nbytes, stdin) == nbytes);
|
|
free (buf);
|
|
}
|
|
|
|
if (nbytes == 0)
|
|
ASSERT (freadptrbufsize (stdin) == 0);
|
|
else
|
|
{
|
|
if (lseek (0, 0, SEEK_CUR) == nbytes)
|
|
/* An unbuffered stdio, such as BeOS or on uClibc compiled without
|
|
__STDIO_BUFFERS. */
|
|
ASSERT (freadptrbufsize (stdin) == 0);
|
|
else
|
|
/* Normal buffered stdio. */
|
|
ASSERT (freadptrbufsize (stdin) != 0);
|
|
}
|
|
|
|
return test_exit_status;
|
|
}
|