vasilito
facf0c92e0
Red Bear OS is a full fork. All sources must be available from git clone with zero network access. Removed gitignore rules that excluded fetched source trees under recipes/*/source/, local/recipes/kde/*/source/, local/recipes/qt/*/source/, and vendor source trees. Build artifacts (target/, build/, source.tar, *.o, *.so) remain excluded. 127291 files added — kernel, relibc, base, bootloader, pkgar, all KDE/Qt frameworks, mesa, wayland, DRM drivers, and every other recipe source.
105 lines
2.6 KiB
C
105 lines
2.6 KiB
C
/* Test of fread() function.
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Copyright (C) 2011-2024 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, see <https://www.gnu.org/licenses/>. */
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#include <config.h>
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#include <stdio.h>
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#include "signature.h"
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SIGNATURE_CHECK (fread, size_t, (void *, size_t, size_t, FILE *));
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#include <errno.h>
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#include <fcntl.h>
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#include <unistd.h>
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#if HAVE_MSVC_INVALID_PARAMETER_HANDLER
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# include "msvc-inval.h"
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#endif
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#include "macros.h"
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int
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main ()
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{
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const char *filename = "test-fread.txt";
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/* We don't have an fread() function that installs an invalid parameter
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handler so far. So install that handler here, explicitly. */
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#if HAVE_MSVC_INVALID_PARAMETER_HANDLER \
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&& MSVC_INVALID_PARAMETER_HANDLING == DEFAULT_HANDLING
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gl_msvc_inval_ensure_handler ();
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#endif
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/* Prepare a file. */
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{
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const char text[] = "hello world";
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int fd = open (filename, O_RDWR | O_CREAT | O_TRUNC, 0600);
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ASSERT (fd >= 0);
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ASSERT (write (fd, text, sizeof (text)) == sizeof (text));
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ASSERT (close (fd) == 0);
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}
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/* Test that fread() sets errno if someone else closes the stream
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fd behind the back of stdio. */
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#if !defined __ANDROID__ /* fdsan */
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{
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FILE *fp = fopen (filename, "r");
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char buf[5];
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ASSERT (fp != NULL);
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ASSERT (close (fileno (fp)) == 0);
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errno = 0;
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ASSERT (fread (buf, 1, sizeof (buf), fp) == 0);
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ASSERT (errno == EBADF);
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ASSERT (ferror (fp));
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fclose (fp);
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}
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#endif
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/* Test that fread() sets errno if the stream was constructed with
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an invalid file descriptor. */
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{
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FILE *fp = fdopen (-1, "r");
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if (fp != NULL)
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{
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char buf[1];
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errno = 0;
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ASSERT (fread (buf, 1, 1, fp) == 0);
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ASSERT (errno == EBADF);
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ASSERT (ferror (fp));
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fclose (fp);
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}
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}
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{
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FILE *fp;
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close (99);
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fp = fdopen (99, "r");
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if (fp != NULL)
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{
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char buf[1];
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errno = 0;
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ASSERT (fread (buf, 1, 1, fp) == 0);
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ASSERT (errno == EBADF);
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ASSERT (ferror (fp));
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fclose (fp);
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}
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}
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/* Clean up. */
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unlink (filename);
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return 0;
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}
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