glibc/libio/test-fmemopen.c
Paul Eggert 581c785bf3 Update copyright dates with scripts/update-copyrights
I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 7061 files FOO.

I then removed trailing white space from math/tgmath.h,
support/tst-support-open-dev-null-range.c, and
sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following
obscure pre-commit check failure diagnostics from Savannah.  I don't
know why I run into these diagnostics whereas others evidently do not.

remote: *** 912-#endif
remote: *** 913:
remote: *** 914-
remote: *** error: lines with trailing whitespace found
...
remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
2022-01-01 11:40:24 -08:00

100 lines
2.2 KiB
C

/* Test for fmemopen implementation.
Copyright (C) 2000-2022 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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/>. */
static char buffer[] = "foobar";
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <mcheck.h>
static int
do_bz18820 (void)
{
char ch;
FILE *stream;
errno = 0;
stream = fmemopen (&ch, 1, "?");
if (stream)
{
printf ("fmemopen: expected NULL, got %p\n", stream);
fclose (stream);
return 1;
}
if (errno != EINVAL)
{
printf ("fmemopen: got %i, expected EINVAL (%i)\n", errno, EINVAL);
return 10;
}
stream = fmemopen (NULL, 42, "?");
if (stream)
{
printf ("fmemopen: expected NULL, got %p\n", stream);
fclose (stream);
return 2;
}
errno = 0;
stream = fmemopen (NULL, ~0, "w");
if (stream)
{
printf ("fmemopen: expected NULL, got %p\n", stream);
fclose (stream);
return 3;
}
if (errno != ENOMEM)
{
printf ("fmemopen: got %i, expected ENOMEM (%i)\n", errno, ENOMEM);
return 20;
}
return 0;
}
static int
do_test (void)
{
int ch;
FILE *stream;
int ret = 0;
mtrace ();
stream = fmemopen (buffer, strlen (buffer), "r+");
while ((ch = fgetc (stream)) != EOF)
printf ("Got %c\n", ch);
fputc ('1', stream);
if (fflush (stream) != EOF || errno != ENOSPC)
{
printf ("fflush didn't fail with ENOSPC\n");
ret = 1;
}
fclose (stream);
return ret + do_bz18820 ();
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"