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/* Test the support_readdir function.
Copyright (C) 2024 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/>. */
#include <support/readdir.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include <support/check.h>
#include <support/xdirent.h>
#include <support/xunistd.h>
static int
do_test (void)
{
DIR *reference_stream = xopendir (".");
struct dirent64 *reference = xreaddir64 (reference_stream);
for (enum support_readdir_op op = 0; op <= support_readdir_op_last (); ++op)
{
DIR *stream = xopendir (".");
struct support_dirent e;
memset (&e, 0xcc, sizeof (e));
e.d_name = NULL;
TEST_VERIFY (support_readdir (stream, op, &e));
TEST_COMPARE (e.d_ino, reference->d_ino);
#ifdef _DIRENT_HAVE_D_OFF
TEST_VERIFY (support_readdir_offset_width (op) != 0);
TEST_COMPARE (e.d_off, reference->d_off);
#else
TEST_COMPARE (support_readdir_offset_width (op), 0);
TEST_COMPARE (e.d_off, 0);
#endif
TEST_COMPARE (e.d_type, reference->d_type);
TEST_COMPARE_STRING (e.d_name, reference->d_name);
free (e.d_name);
xclosedir (stream);
}
xclosedir (reference_stream);
/* Error injection test. */
int devnull = xopen ("/dev/null", O_RDONLY, 0);
for (enum support_readdir_op op = 0; op <= support_readdir_op_last (); ++op)
{
DIR *stream = xopendir (".");
/* A descriptor incompatible with readdir. */
xdup2 (devnull, dirfd (stream));
errno = -1;
support_readdir_expect_error (stream, op, ENOTDIR);
xclosedir (stream);
}
xclose (devnull);
return 0;
}
#include <support/test-driver.c>
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