glibc/libio/tst-fwrite-error.c
Siddhesh Poyarekar 290f8294a6 libio: Update license on test case
About a decade ago, I accidentally wrote the GPLv3 license text on the
test case when the rest of glibc source is LGPL v2.1 or later.  As
original author of the test (and there are no other legally
significant changes to the test) I propose to update the license text
to be consistent with the project.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2021-03-30 19:23:09 +05:30

69 lines
1.7 KiB
C

/* Test of fwrite() function, adapted from gnulib-tests in grep.
Copyright (C) 2011-2021 Free Software Foundation, Inc.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
static int
do_test (void)
{
char tmpl[] = "/tmp/tst-fwrite-error.XXXXXX";
int fd = mkstemp (tmpl);
if (fd == -1)
{
printf ("mkstemp failed with errno %d\n", errno);
return 1;
}
FILE *fp = fdopen (fd, "w");
if (fp == NULL)
{
printf ("fdopen failed with errno %d\n", errno);
return 1;
}
char buf[] = "world";
setvbuf (fp, NULL, _IONBF, 0);
close (fd);
unlink (tmpl);
errno = 0;
int ret = fwrite (buf, 1, sizeof (buf), fp);
if (ret != 0)
{
printf ("fwrite returned %d\n", ret);
return 1;
}
if (errno != EBADF)
{
printf ("Errno is not EBADF: %d\n", errno);
return 1;
}
if (ferror (fp) == 0)
{
printf ("ferror not set\n");
return 1;
}
return 0;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"