Files
RedBear-OS/local/recipes/tools/diffutils/source/gnulib-tests/test-fwrite.c
T
vasilito 068a1ca63e bootloader: rebase onto upstream 1.0.0, sync firmware-loader version
Bootloader fork rebase:
- Base changed from 0.1.0 pre-patched archive to upstream 1.0.0 tag (c7eeb9f)
- Applied 0001-redbear-local-forks.patch (Cargo.toml crate path redirects)
- Applied fix-uefi-alloc-panic.patch equivalents (4 panic!() -> graceful
  error handling in src/main.rs)
- Applied P5-live-preload-cap-1gib.patch (1 GiB cap on live image preload)
- Skipped: P0 GPT partition scan (requires new module + integration),
  P1 timeout/default-resolution, P2 live preload guard (subsumed by
  panic fixes + cap), P3 live image safe read, P4 large ISO boot,
  redox.patch — to be applied in dedicated rebase session.

firmware-loader/Cargo.toml: version 0.1.0 -> 0.3.0 (sync with other
Red Bear custom crates which are at 0.3.0).

fork-upstream-map.toml: bootloader back from PENDING_REBASE to 1.0.0
since the partial rebase matches upstream 1.0.0 content.

fork-upstream-map.toml: base restored to 'main' tracked (was correctly
tracked by build-redbear.sh).
2026-07-11 09:47:59 +03:00

99 lines
2.6 KiB
C

/* Test of fwrite() 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, 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 "signature.h"
SIGNATURE_CHECK (fwrite, size_t, (const void *, size_t, size_t, FILE *));
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#if HAVE_MSVC_INVALID_PARAMETER_HANDLER
# include "msvc-inval.h"
#endif
#include "macros.h"
int
main ()
{
const char *filename = "test-fwrite.txt";
/* We don't have an fwrite() function that installs an invalid parameter
handler so far. So install that handler here, explicitly. */
#if HAVE_MSVC_INVALID_PARAMETER_HANDLER \
&& MSVC_INVALID_PARAMETER_HANDLING == DEFAULT_HANDLING
gl_msvc_inval_ensure_handler ();
#endif
/* Test that fwrite() on an unbuffered stream sets errno if someone else
closes the stream fd behind the back of stdio. */
#if !defined __ANDROID__ /* fdsan */
{
FILE *fp = fopen (filename, "w");
char buf[5] = "world";
ASSERT (fp != NULL);
setvbuf (fp, NULL, _IONBF, 0);
ASSERT (close (fileno (fp)) == 0);
errno = 0;
ASSERT (fwrite (buf, 1, sizeof (buf), fp) == 0);
ASSERT (errno == EBADF);
ASSERT (ferror (fp));
fclose (fp);
}
#endif
/* Test that fwrite() on an unbuffered stream sets errno if the stream
was constructed with an invalid file descriptor. */
{
FILE *fp = fdopen (-1, "w");
if (fp != NULL)
{
char buf[5] = "world";
setvbuf (fp, NULL, _IONBF, 0);
errno = 0;
ASSERT (fwrite (buf, 1, sizeof (buf), fp) == 0);
ASSERT (errno == EBADF);
ASSERT (ferror (fp));
fclose (fp);
}
}
{
FILE *fp;
close (99);
fp = fdopen (99, "w");
if (fp != NULL)
{
char buf[5] = "world";
setvbuf (fp, NULL, _IONBF, 0);
errno = 0;
ASSERT (fwrite (buf, 1, sizeof (buf), fp) == 0);
ASSERT (errno == EBADF);
ASSERT (ferror (fp));
fclose (fp);
}
}
/* Clean up. */
unlink (filename);
return test_exit_status;
}