68 lines
2.5 KiB
C
68 lines
2.5 KiB
C
/* -*- C -*-
|
|
* Copyright (c) 1998-2006 Motoyuki Kasahara
|
|
*
|
|
* 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. Neither the name of the project nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``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 PROJECT OR CONTRIBUTORS 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.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <stdio.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
|
|
/*
|
|
* If the files `file_name1' and `file_name2' are identical (i.e. the are
|
|
* written on a same device and a same i-node is assigned to them), 1 is
|
|
* returned. Otherwise, 0 is returned.
|
|
*/
|
|
int
|
|
is_same_file(const char *file_name1, const char *file_name2)
|
|
{
|
|
struct stat st1, st2;
|
|
|
|
if (stat(file_name1, &st1) != 0 || stat(file_name2, &st2) != 0)
|
|
return 0;
|
|
|
|
#ifndef DOS_FILE_PATH
|
|
if (st1.st_dev != st2.st_dev || st1.st_ino != st2.st_ino)
|
|
return 0;
|
|
|
|
#else /* DOS_FILE_PATH */
|
|
/* Can't rely on st_ino and st_dev, use other fields: */
|
|
if (st1.st_mode != st2.st_mode
|
|
|| st1.st_uid != st2.st_uid
|
|
|| st1.st_gid != st2.st_gid
|
|
|| st1.st_size != st2.st_size
|
|
|| st1.st_atime != st2.st_atime
|
|
|| st1.st_mtime != st2.st_mtime
|
|
|| st1.st_ctime != st2.st_ctime)
|
|
return 0;
|
|
#endif /* DOS_FILE_PATH */
|
|
|
|
return 1;
|
|
}
|