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// 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
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