87 lines
3.2 KiB
C
87 lines
3.2 KiB
C
/*
|
|
* Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "tests.h"
|
|
#include <fcntl.h>
|
|
|
|
#ifdef MAX_HANDLE_SZ
|
|
|
|
# include <alloca.h>
|
|
# include <assert.h>
|
|
# include <errno.h>
|
|
# include <stdio.h>
|
|
|
|
int
|
|
main(void)
|
|
{
|
|
struct file_handle *handle =
|
|
alloca(sizeof(struct file_handle) + MAX_HANDLE_SZ);
|
|
const int dirfd = AT_FDCWD;
|
|
const int flags = AT_SYMLINK_FOLLOW;
|
|
int mount_id;
|
|
unsigned int i;
|
|
|
|
handle->handle_bytes = 0;
|
|
|
|
assert(name_to_handle_at(dirfd, ".", handle, &mount_id, flags | 1) == -1);
|
|
if (EINVAL != errno)
|
|
perror_msg_and_skip("name_to_handle_at");
|
|
printf("name_to_handle_at(AT_FDCWD, \".\", {handle_bytes=0}, %p"
|
|
", AT_SYMLINK_FOLLOW|0x1) = -1 EINVAL (%m)\n", &mount_id);
|
|
|
|
assert(name_to_handle_at(dirfd, ".", handle, &mount_id, flags) == -1);
|
|
if (EOVERFLOW != errno)
|
|
perror_msg_and_skip("name_to_handle_at");
|
|
printf("name_to_handle_at(AT_FDCWD, \".\", {handle_bytes=0 => %u}"
|
|
", %p, AT_SYMLINK_FOLLOW) = -1 EOVERFLOW (%m)\n",
|
|
handle->handle_bytes, &mount_id);
|
|
|
|
assert(name_to_handle_at(dirfd, ".", handle, &mount_id, flags) == 0);
|
|
printf("name_to_handle_at(AT_FDCWD, \".\", {handle_bytes=%u"
|
|
", handle_type=%d, f_handle=0x",
|
|
handle->handle_bytes, handle->handle_type);
|
|
for (i = 0; i < handle->handle_bytes; ++i)
|
|
printf("%02x", handle->f_handle[i]);
|
|
printf("}, [%d], AT_SYMLINK_FOLLOW) = 0\n", mount_id);
|
|
|
|
printf("open_by_handle_at(-1, {handle_bytes=%u, handle_type=%d"
|
|
", f_handle=0x", handle->handle_bytes, handle->handle_type);
|
|
for (i = 0; i < handle->handle_bytes; ++i)
|
|
printf("%02x", handle->f_handle[i]);
|
|
int rc = open_by_handle_at(-1, handle, O_RDONLY | O_DIRECTORY);
|
|
printf("}, O_RDONLY|O_DIRECTORY) = %d %s (%m)\n", rc, errno2name());
|
|
|
|
puts("+++ exited with 0 +++");
|
|
return 0;
|
|
}
|
|
|
|
#else
|
|
|
|
SKIP_MAIN_UNDEFINED("MAX_HANDLE_SZ")
|
|
|
|
#endif
|