[LTP] [PATCH v1] Add link01 test

[Andrea Cervesato]

Hi!
please ignore this patch since the test case is covered by link02 already.

Andrea

On 1/19/24 10:07, Andrea Cervesato wrote:
> From: Andrea Cervesato <andrea.cervesato@suse.com>
>
> This test verifies that link() is working correctly on symlink()
> generated files, renaming the symbolic link and checking that
> stat() information are preserved.
>
> Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.com>
> ---
>   runtest/syscalls                        |  2 +-
>   testcases/kernel/syscalls/link/link01.c | 47 +++++++++++++++++++++++++
>   2 files changed, 48 insertions(+), 1 deletion(-)
>   create mode 100644 testcases/kernel/syscalls/link/link01.c
>
> diff --git a/runtest/syscalls b/runtest/syscalls
> index 68460de0b..00a0dd87e 100644
> --- a/runtest/syscalls
> +++ b/runtest/syscalls
> @@ -692,7 +692,7 @@ lchown03_16 lchown03_16
>   lgetxattr01 lgetxattr01
>   lgetxattr02 lgetxattr02
>   
> -link01 symlink01 -T link01
> +link01 link01
>   link02 link02
>   link04 link04
>   link05 link05
> diff --git a/testcases/kernel/syscalls/link/link01.c b/testcases/kernel/syscalls/link/link01.c
> new file mode 100644
> index 000000000..e1cda7054
> --- /dev/null
> +++ b/testcases/kernel/syscalls/link/link01.c
> @@ -0,0 +1,47 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
> +/*
> + * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
> + *    Author: David Fenner
> + *    Copilot: Jon Hendrickson
> + * Copyright (C) 2024 Andrea Cervesato andrea.cervesato@suse.com
> + */
> +
> +/*\
> + * [Description]
> + *
> + * This test verifies that link() is working correctly on symlink()
> + * generated files, renaming the symbolic link and checking that
> + * stat() information are preserved.
> + */
> +
> +#include "tst_test.h"
> +
> +static void run(void)
> +{
> +	struct stat oldlink_stat;
> +	struct stat newlink_stat;
> +	char *symname0 = "my_symlink0";
> +	char *symname1 = "my_symlink1";
> +
> +	SAFE_SYMLINK(tst_get_tmpdir(), symname0);
> +	SAFE_STAT(symname0, &oldlink_stat);
> +
> +	SAFE_LINK(symname0, symname1);
> +	SAFE_STAT(symname1, &newlink_stat);
> +
> +	TST_EXP_EQ_LI(oldlink_stat.st_ino, newlink_stat.st_ino);
> +	TST_EXP_EQ_LI(oldlink_stat.st_nlink, newlink_stat.st_nlink);
> +
> +	if (TST_RET == -1) {
> +		SAFE_UNLINK(symname0);
> +		remove(symname1);
> +	} else {
> +		SAFE_UNLINK(symname1);
> +		remove(symname0);
> +	}
> +}
> +
> +static struct tst_test test = {
> +	.test_all = run,
> +	.needs_tmpdir = 1,
> +};