[v5,1/5] syscalls/dup2/dup201: Convert to new API

From: QI Fuli <qi.fuli@fujitsu.com>

Signed-off-by: QI Fuli <qi.fuli@fujitsu.com>
---
 testcases/kernel/syscalls/dup2/dup201.c | 174 +++++-------------------
 1 file changed, 33 insertions(+), 141 deletions(-)

On 9/18/21 8:11 PM, QI Fuli wrote:
> From: QI Fuli <qi.fuli@fujitsu.com>
>
> Signed-off-by: QI Fuli <qi.fuli@fujitsu.com>
> ---
>   testcases/kernel/syscalls/dup2/dup201.c | 174 +++++-------------------
>   1 file changed, 33 insertions(+), 141 deletions(-)
>
> diff --git a/testcases/kernel/syscalls/dup2/dup201.c b/testcases/kernel/syscalls/dup2/dup201.c
> index 4fa34466a..cc1563115 100644
> --- a/testcases/kernel/syscalls/dup2/dup201.c
> +++ b/testcases/kernel/syscalls/dup2/dup201.c
> @@ -1,163 +1,55 @@
> +// 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
> + * 01/2002 Removed EMFILE test - Paul Larson
>    */
> -
> -/*
> - * NAME
> - *	dup201.c
> - *
> - * DESCRIPTION
> - *	Negative tests for dup2() with bad fd (EBADF)
> - *
> - * ALGORITHM
> - * 	Setup:
> - *	a.	Setup signal handling.
> - *	b.	Pause for SIGUSR1 if option specified.
> - *
> - * 	Test:
> - *	a.	Loop if the proper options are given.
> - *	b.	Loop through the test cases
> - * 	c.	Execute dup2() system call
> - *	d.	Check return code, if system call failed (return=-1), test
> - *		for EBADF.
> - *
> - * 	Cleanup:
> - * 	a.	Print errno log and/or timing stats if options given
> +/*\
> + * [Description]
>    *
> - * USAGE:  <for command-line>
> - *  dup201 [-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.
> + * Negative tests for dup2() with bad fd (EBADF)
Please add a full stop.
>    *
> - * HISTORY
> - *	07/2001 Ported by Wayne Boyer
> - *	01/2002 Removed EMFILE test - Paul Larson
> + * - First fd argument is less than 0
> + * - First fd argument is getdtablesize()
> + * - Second fd argument is less than 0
> + * - Second fd argument is getdtablesize()
>    *
> - * RESTRICTIONS
> - * 	NONE
>    */
>   
> -#include <sys/types.h>
> -#include <fcntl.h>
>   #include <errno.h>
> -#include <sys/time.h>
> -#include <sys/resource.h>
>   #include <unistd.h>
> -#include <signal.h>
> -#include "test.h"
> +#include "tst_test.h"
>   
> -void setup(void);
> -void cleanup(void);
> +static int maxfd, mystdout;
> +static int goodfd = 5;
> +static int badfd = -1;
>   
> -char *TCID = "dup201";
> -int TST_TOTAL = 4;
> -
> -int maxfd;
> -int goodfd = 5;
> -int badfd = -1;
> -int mystdout = 0;
> -
> -struct test_case_t {
> +static struct tcase {
>   	int *ofd;
>   	int *nfd;
> -	int error;
> -	void (*setupfunc) ();
> -} TC[] = {
> -	/* First fd argument is less than 0 - EBADF */
> -	{&badfd, &goodfd, EBADF, NULL},
> -	    /* First fd argument is getdtablesize() - EBADF */
> -	{&maxfd, &goodfd, EBADF, NULL},
> -	    /* Second fd argument is less than 0 - EBADF */
> -	{&mystdout, &badfd, EBADF, NULL},
> -	    /* Second fd argument is getdtablesize() - EBADF */
> -	{&mystdout, &maxfd, EBADF, NULL},
> +} tcases[] = {
> +	{&badfd, &goodfd},
> +	{&maxfd, &goodfd},
> +	{&mystdout, &badfd},
> +	{&mystdout, &maxfd},
>   };
>   
> -int main(int ac, char **av)
> +static void setup(void)
>   {
> -	int lc;
> -	int i;
> -
> -	tst_parse_opts(ac, av, NULL, NULL);
> -
> -	setup();
> -
> -	for (lc = 0; TEST_LOOPING(lc); lc++) {
> -
> -		tst_count = 0;
> -
> -		/* loop through the test cases */
> -
> -		for (i = 0; i < TST_TOTAL; i++) {
> -
> -			/* call the test case setup routine if necessary */
> -			if (TC[i].setupfunc != NULL)
> -				(*TC[i].setupfunc) ();
> -
> -			TEST(dup2(*TC[i].ofd, *TC[i].nfd));
> -
> -			if (TEST_RETURN != -1) {
> -				tst_resm(TFAIL, "call succeeded unexpectedly");
> -				continue;
> -			}
> -
> -			if (TEST_ERRNO == TC[i].error) {
> -				tst_resm(TPASS,
> -					 "failed as expected - errno = %d : %s",
> -					 TEST_ERRNO, strerror(TEST_ERRNO));
> -			} else {
> -				tst_resm(TFAIL | TTERRNO,
> -					 "failed unexpectedly; "
> -					 "expected %d: %s", TC[i].error,
> -					 strerror(TC[i].error));
> -			}
> -		}
> -	}
> -	cleanup();
> -
> -	tst_exit();
> -}
> -
> -/*
> - * setup() - performs all ONE TIME setup for this test.
> - */
> -void setup(void)
> -{
> -
> -	tst_sig(NOFORK, DEF_HANDLER, cleanup);
> -
> -	TEST_PAUSE;
> -
> -	tst_tmpdir();
> -
>   	/* get some test specific values */
>   	maxfd = getdtablesize();
>   }
>   
> -/*
> - * cleanup() - performs all ONE TIME cleanup for this test at
> - *	       completion or premature exit.
> - */
> -void cleanup(void)
> +static void run(unsigned int i)
>   {
> -	tst_rmdir();
> +	struct tcase *tc = tcases + i;
> +
> +	TST_EXP_FAIL2(dup2(*tc->ofd, *tc->nfd), EBADF,
> +			"dup2(%d, %d)", *tc->ofd, *tc->nfd);
>   }
> +
> +static struct tst_test test = {
> +	.tcnt = ARRAY_SIZE(tcases),
> +	.test = run,
> +	.setup = setup,
> +};