// SPDX-License-Identifier: GPL-2.0
#define _GNU_SOURCE
#define __SANE_USERSPACE_TYPES__

#include <fcntl.h>
#include <stdio.h>
#include <sys/stat.h>
#include <sys/xattr.h>

#include "kselftest_harness.h"
#include "wrappers.h"

TEST(kernfs_listxattr)
{
        int fd;

        /* Read-only file that can never have any extended attributes set. */
        fd = open("/sys/kernel/warn_count", O_RDONLY | O_CLOEXEC);
        ASSERT_GE(fd, 0);
        ASSERT_EQ(flistxattr(fd, NULL, 0), 0);
        EXPECT_EQ(close(fd), 0);
}

TEST(kernfs_getxattr)
{
        int fd;
        char buf[1];

        /* Read-only file that can never have any extended attributes set. */
        fd = open("/sys/kernel/warn_count", O_RDONLY | O_CLOEXEC);
        ASSERT_GE(fd, 0);
        ASSERT_LT(fgetxattr(fd, "user.foo", buf, sizeof(buf)), 0);
        ASSERT_EQ(errno, ENODATA);
        EXPECT_EQ(close(fd), 0);
}

TEST_HARNESS_MAIN