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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) 2015-2016 Fujitsu Ltd.
* Author: Xiao Yang <yangx.jy@cn.fujitsu.com>
* Copyright (c) Linux Test Project, 2017-2023
*/
/*\
* [Description]
*
* - EINVAL when iov_len is invalid.
* - EINVAL when the vector count iovcnt is less than zero.
* - EINVAL when offset is negative.
* - EFAULT when attempts to read into a invalid address.
* - EBADF when file descriptor is invalid.
* - EBADF when file descriptor is not open for reading.
* - EISDIR when fd refers to a directory.
* - ESPIPE when fd is associated with a pipe.
*/
#define _GNU_SOURCE
#include <sys/uio.h>
#include <unistd.h>
#include "tst_test.h"
#include "preadv.h"
#define CHUNK 64
static int fd1;
static int fd2;
static int fd3 = -1;
static int fd4;
static int fd5[2];
static char buf[CHUNK];
static struct iovec rd_iovec1[] = {
{buf, -1},
};
static struct iovec rd_iovec2[] = {
{buf, CHUNK},
};
static struct iovec rd_iovec3[] = {
{(char *)-1, CHUNK},
};
static struct tcase {
int *fd;
struct iovec *name;
int count;
off_t offset;
int exp_err;
} tcases[] = {
{&fd1, rd_iovec1, 1, 0, EINVAL},
{&fd1, rd_iovec2, -1, 0, EINVAL},
{&fd1, rd_iovec2, 1, -1, EINVAL},
{&fd1, rd_iovec3, 1, 0, EFAULT},
{&fd3, rd_iovec2, 1, 0, EBADF},
{&fd2, rd_iovec2, 1, 0, EBADF},
{&fd4, rd_iovec2, 1, 0, EISDIR},
{&fd5[0], rd_iovec2, 1, 0, ESPIPE}
};
static void verify_preadv(unsigned int n)
{
struct tcase *tc = &tcases[n];
TEST(preadv(*tc->fd, tc->name, tc->count, tc->offset));
if (TST_RET == 0) {
tst_res(TFAIL, "preadv() succeeded unexpectedly");
return;
}
if (TST_ERR == tc->exp_err) {
tst_res(TPASS | TTERRNO, "preadv() failed as expected");
return;
}
tst_res(TFAIL | TTERRNO, "preadv() 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_WRONLY | O_CREAT, 0644);
fd4 = SAFE_OPEN(".", O_RDONLY);
SAFE_PIPE(fd5);
}
static void cleanup(void)
{
if (fd1 > 0)
SAFE_CLOSE(fd1);
if (fd2 > 0)
SAFE_CLOSE(fd2);
if (fd4 > 0)
SAFE_CLOSE(fd4);
if (fd5[0] > 0)
SAFE_CLOSE(fd5[0]);
if (fd5[1] > 0)
SAFE_CLOSE(fd5[1]);
}
static struct tst_test test = {
.tcnt = ARRAY_SIZE(tcases),
.setup = setup,
.cleanup = cleanup,
.test = verify_preadv,
.needs_tmpdir = 1,
};
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