Re: [LTP] [PATCH v2 4/9] Rewrite rename04.c using new LTP API

[Richard Palethorpe <rpalethorpe@suse.de>]

Hello,

Avinesh Kumar <akumar@suse.de> writes:

> Signed-off-by: Avinesh Kumar <akumar@suse.de>
> ---
>  testcases/kernel/syscalls/rename/rename04.c | 201 ++++----------------
>  1 file changed, 33 insertions(+), 168 deletions(-)
>
> diff --git a/testcases/kernel/syscalls/rename/rename04.c b/testcases/kernel/syscalls/rename/rename04.c
> index 32594a776..13cdf98ad 100644
> --- a/testcases/kernel/syscalls/rename/rename04.c
> +++ b/testcases/kernel/syscalls/rename/rename04.c
> @@ -1,182 +1,47 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
>  /*
> - *
> - *   Copyright (c) International Business Machines  Corp., 2001
> - *
> - *   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 2 of the License, 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, write to the Free Software
> - *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
> + * Copyright (c) International Business Machines  Corp., 2001
> + *  07/2001 Ported by Wayne Boyer
> + * Copyright (c) 2022 SUSE LLC Avinesh Kumar <avinesh.kumar@suse.com>
>   */
>  
> -/*
> - * NAME
> - *	rename04
> - *
> - * DESCRIPTION
> - *	This test will verify that rename(2) failed when newpath is
> - *      a non-empty directory and return EEXIST or ENOTEMPTY
> - *
> - * ALGORITHM
> - *	Setup:
> - *		Setup signal handling.
> - *		Create temporary directory.
> - *		Pause for SIGUSR1 if option specified.
> - *              create the "old" directory and the "new" directory
> - *              create a file uner the "new" directory
> - *
> - *	Test:
> - *		Loop if the proper options are given.
> - *                  rename the "old" to the "new" directory
> - *                  verify rename() failed and returned ENOTEMPTY
> - *
> - *	Cleanup:
> - *		Print errno log and/or timing stats if options given
> - *		Delete the temporary directory created.
> - *
> - * USAGE
> - *	rename04 [-c n] [-e] [-i n] [-I x] [-P x] [-t]
> - *	where,  -c n : Run n copies concurrently.
> - *		-e   : Turn on errno logging.
> - *		-i n : Execute test n times.
> - *		-I x : Execute test for x seconds.
> - *		-P x : Pause for x seconds between iterations.
> - *		-t   : Turn on syscall timing.
> - *
> - * HISTORY
> - *	07/2001 Ported by Wayne Boyer
> +/*\
> + * [Description]
>   *
> - * RESTRICTIONS
> - *	None.
> + * Verify that rename() fails with EEXIST or ENOTEMPTY when
> + * newpath is a non-empty directory.
>   */
> -#include <sys/types.h>
> -#include <fcntl.h>
> -#include <sys/stat.h>
> -#include <unistd.h>
> -#include <errno.h>
>  
> -#include "test.h"
> -#include "safe_macros.h"
> +#include <stdio.h>
> +#include "tst_test.h"
>  
> -void setup();
> -void cleanup();
> +#define DIR1 "dir1"
> +#define DIR2 "dir2"
> +#define TEMP_FILE DIR2"/tmpfile"
>  
> -char *TCID = "rename04";
> -int TST_TOTAL = 1;
> -
> -int fd;
> -char tstfile[40];
> -char fdir[255], mdir[255];
> -struct stat buf1, buf2;
> -dev_t olddev, olddev1;
> -ino_t oldino, oldino1;
> -
> -int main(int ac, char **av)
> +static void setup(void)
>  {
> -	int lc;
> -
> -	/*
> -	 * parse standard options
> -	 */
> -	tst_parse_opts(ac, av, NULL, NULL);
> -
> -	/*
> -	 * perform global setup for test
> -	 */
> -	setup();
> -
> -	/*
> -	 * check looping state if -i option given
> -	 */
> -	for (lc = 0; TEST_LOOPING(lc); lc++) {
> -
> -		tst_count = 0;
> -
> -		/* rename a directory to a non-empty directory */
> -
> -		/* Call rename(2) */
> -		TEST(rename(fdir, mdir));
> -
> -		if (TEST_RETURN != -1) {
> -			tst_resm(TFAIL, "rename(%s, %s) succeeded unexpectedly",
> -				 fdir, mdir);
> -			continue;
> -		}
> -
> -		if (TEST_ERRNO == ENOTEMPTY) {
> -			tst_resm(TPASS, "rename() returned ENOTEMPTY");
> -		} else if (TEST_ERRNO == EEXIST) {
> -			tst_resm(TPASS, "rename() returned EEXIST");
> -		} else {
> -			tst_resm(TFAIL, "Expected ENOTEMPTY or EEXIST got %d",
> -				 TEST_ERRNO);
> -		}
> -
> -	}
> -
> -	/*
> -	 * cleanup and exit
> -	 */
> -	cleanup();
> -	tst_exit();
> -
> +	SAFE_MKDIR(DIR1, 00770);
> +	SAFE_MKDIR(DIR2, 00770);
> +	SAFE_TOUCH(TEMP_FILE, 0700, NULL);
>  }
>  
> -/*
> - * setup() - performs all ONE TIME setup for this test.
> - */
> -void setup(void)
> +static void run(void)
>  {
> -
> -	tst_sig(NOFORK, DEF_HANDLER, cleanup);
> -
> -	TEST_PAUSE;
> -
> -	/* Create a temporary directory and make it current. */
> -	tst_tmpdir();
> -
> -	sprintf(fdir, "./tdir_%d", getpid());
> -	sprintf(mdir, "./rndir_%d", getpid());
> -	sprintf(tstfile, "%s/tstfile_%d", mdir, getpid());
> -
> -	/* create "old" directory */
> -	SAFE_MKDIR(cleanup, fdir, 00770);
> -
> -	SAFE_STAT(cleanup, fdir, &buf1);
> -
> -	/* save "old"'s dev and ino */
> -	olddev = buf1.st_dev;
> -	oldino = buf1.st_ino;
> -
> -	/* create another directory */
> -	SAFE_MKDIR(cleanup, mdir, 00770);
> -
> -	SAFE_TOUCH(cleanup, tstfile, 0700, NULL);
> -
> -	SAFE_STAT(cleanup, mdir, &buf2);
> -
> -	/* save "new"'s dev and ino */
> -	olddev1 = buf2.st_dev;
> -	oldino1 = buf2.st_ino;
> +	TEST(rename(DIR1, DIR2));
> +
> +	if (TST_RET == -1 && TST_ERR == ENOTEMPTY)
> +		tst_res(TPASS, "rename() failed with ENOTEMPTY");
> +	else if (TST_RET == -1 && TST_ERR == EEXIST)
> +		tst_res(TPASS, "rename() failed with EEXIST");
> +	else if (TST_RET == 0)
> +		tst_res(TFAIL, "rename() succeeded unexpectedly");
> +	else
> +		tst_res(TFAIL, "rename() failed, but not with expected
> errno");

You can print the errno name with tst_res(TFAIL | TERRNO, ...)

>  }
>  
> -/*
> - * cleanup() - performs all ONE TIME cleanup for this test at
> - *              completion or premature exit.
> - */
> -void cleanup(void)
> -{
> -
> -	/*
> -	 * Remove the temporary directory.
> -	 */
> -	tst_rmdir();
> -}
> +static struct tst_test test = {
> +	.setup = setup,
> +	.test_all = run,
> +	.needs_tmpdir = 1

I suppose all these tests should be done on all file systems as
well. Renaming is implemented differently on each filesystem.

> +};
> -- 
> 2.36.1


-- 
Thank you,
Richard.

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