[LTP] [PATCH 3/3] syscalls/pwitev202: Add new testcase

[Xiao Yang]

Hi Jinhui,

On 2019/02/15 16:11, Jinhui huang wrote:
> Check various errnos for the pwitev202().

Typo? pwitev2() seems proper.

> Signed-off-by: Jinhui huang <huangjh.jy@cn.fujitsu.com>
> ---
>  runtest/syscalls                                |   2 +
>  testcases/kernel/syscalls/pwritev2/.gitignore   |   2 +
>  testcases/kernel/syscalls/pwritev2/pwritev202.c | 117 ++++++++++++++++++++++++
>  3 files changed, 121 insertions(+)
>  create mode 100644 testcases/kernel/syscalls/pwritev2/pwritev202.c
>
> diff --git a/runtest/syscalls b/runtest/syscalls
> index 04f5269..27cc1dc 100644
> --- a/runtest/syscalls
> +++ b/runtest/syscalls
> @@ -909,6 +909,8 @@ pwritev03_64 pwritev03_64
>  
>  pwritev201 pwritev201
>  pwritev201_64 pwritev201_64
> +pwritev202 pwritev202
> +pwritev202_64 pwritev202_64
>  
>  quotactl01 quotactl01
>  quotactl02 quotactl02
> diff --git a/testcases/kernel/syscalls/pwritev2/.gitignore b/testcases/kernel/syscalls/pwritev2/.gitignore
> index 46270c3..40030d9 100644
> --- a/testcases/kernel/syscalls/pwritev2/.gitignore
> +++ b/testcases/kernel/syscalls/pwritev2/.gitignore
> @@ -1,2 +1,4 @@
>  /pwritev201
>  /pwritev201_64
> +/pwritev202
> +/pwritev202_64
> diff --git a/testcases/kernel/syscalls/pwritev2/pwritev202.c b/testcases/kernel/syscalls/pwritev2/pwritev202.c
> new file mode 100644
> index 0000000..d0f8868
> --- /dev/null
> +++ b/testcases/kernel/syscalls/pwritev2/pwritev202.c
> @@ -0,0 +1,117 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
> +/*
> + * Copyright (c) 2019 FUJITSU LIMITED. All rights reserved.
> + * Author: Jinhui Huang <huangjh.jy@cn.fujitsu.com>
> + */
> +/*
> + * Description:
> + * Check various errnos for pwritev2(2).
> + * 1) pwritev2() fails and sets errno to EINVAL if iov_len is invalid.
> + * 2) pwritev2() fails and sets errno to EINVAL if the vector count iovcnt is
> + *    less than zero.
> + * 3) pwritev2() fails and sets errno to EOPNOTSUPP if flag is invalid.
> + * 4) pwritev2() fails and sets errno to EFAULT when attempts to read into a
> + *    invalid address.

Typo? Invalid address is actually used to test write instead of read.

> + * 5) pwritev2() fails and sets errno to EBADF if file descriptor is invalid.
> + * 6) pwritev2() fails and sets errno to EBADF if file descriptor is not open
> + *    for reading.

Typo? fd2 is actually opened with O_RDONLY.

Best Regards,
Xiao Yang
> + * 7) pwritev2() fails and sets errno to ESPIPE if fd is associated with a pipe.
> + */
> +
> +#define _GNU_SOURCE
> +#include <sys/uio.h>
> +#include <unistd.h>
> +
> +#include "tst_test.h"
> +#include "lapi/pwritev2.h"
> +
> +#define CHUNK           64
> +
> +static int fd1;
> +static int fd2;
> +static int fd3 = -1;
> +static int fd4[2];
> +
> +static char buf[CHUNK];
> +
> +static struct iovec wr_iovec1[] = {
> +	{buf, -1},
> +};
> +
> +static struct iovec wr_iovec2[] = {
> +	{buf, CHUNK},
> +};
> +
> +static struct iovec wr_iovec3[] = {
> +	{NULL, CHUNK},
> +};
> +
> +static struct tcase {
> +	int *fd;
> +	struct iovec *name;
> +	int count;
> +	off_t offset;
> +	int flag;
> +	int exp_err;
> +} tcases[] = {
> +	{&fd1, wr_iovec1, 1, 0, 0, EINVAL},
> +	{&fd1, wr_iovec2, -1, 0, 0, EINVAL},
> +	{&fd1, wr_iovec2, 1, 1, -1, EOPNOTSUPP},
> +	{&fd1, wr_iovec3, 1, 0, 0, EFAULT},
> +	{&fd3, wr_iovec2, 1, 0, 0, EBADF},
> +	{&fd2, wr_iovec2, 1, 0, 0, EBADF},
> +	{&fd4[0], wr_iovec2, 1, 0, 0, ESPIPE},
> +};
> +
> +static void verify_pwritev2(unsigned int n)
> +{
> +	struct tcase *tc = &tcases[n];
> +
> +	TEST(pwritev2(*tc->fd, tc->name, tc->count, tc->offset, tc->flag));
> +
> +	if (TST_RET == 0) {
> +		tst_res(TFAIL, "pwritev2() succeeded unexpectedly");
> +		return;
> +	}
> +
> +	if (TST_ERR == tc->exp_err) {
> +		tst_res(TPASS | TTERRNO, "pwritev2() failed as expected");
> +		return;
> +	}
> +
> +	tst_res(TFAIL | TTERRNO, "pwritev2() failed unexpectedly, expected %s",
> +		tst_strerrno(tc->exp_err));
> +}
> +
> +static void setup(void)
> +{
> +	fd1 = SAFE_OPEN("file1", O_RDWR | O_CREAT, 0644);
> +	SAFE_FTRUNCATE(fd1, getpagesize());
> +	fd2 = SAFE_OPEN("file2", O_RDONLY | O_CREAT, 0644);
> +	SAFE_PIPE(fd4);
> +
> +	wr_iovec3[0].iov_base = tst_get_bad_addr(NULL);
> +}
> +
> +static void cleanup(void)
> +{
> +	if (fd1 > 0)
> +		SAFE_CLOSE(fd1);
> +
> +	if (fd2 > 0)
> +		SAFE_CLOSE(fd2);
> +
> +	if (fd4[0] > 0)
> +		SAFE_CLOSE(fd4[0]);
> +
> +	if (fd4[1] > 0)
> +		SAFE_CLOSE(fd4[1]);
> +}
> +
> +static struct tst_test test = {
> +	.tcnt = ARRAY_SIZE(tcases),
> +	.setup = setup,
> +	.cleanup = cleanup,
> +	.test = verify_pwritev2,
> +	.needs_tmpdir = 1,
> +};