/* Determine whether two file names refer to the same file.
- Copyright (C) 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2005 Free
- Software Foundation, Inc.
+ Copyright (C) 1997-2000, 2002-2006, 2009-2013 Free Software Foundation, Inc.
- This program is free software; you can redistribute it and/or modify
+ This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* written by Jim Meyering */
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
+#include <config.h>
#include <stdbool.h>
#include <stdio.h>
-#ifdef HAVE_UNISTD_H
-# include <unistd.h>
-#endif
+#include <unistd.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "same.h"
#include "dirname.h"
#include "error.h"
-#include "xalloc.h"
+#include "same-inode.h"
#ifndef MIN
# define MIN(a, b) ((a) < (b) ? (a) : (b))
#endif
-#define SAME_INODE(Stat_buf_1, Stat_buf_2) \
- ((Stat_buf_1).st_ino == (Stat_buf_2).st_ino \
- && (Stat_buf_1).st_dev == (Stat_buf_2).st_dev)
-
/* Return nonzero if SOURCE and DEST point to the same name in the same
directory. */
same_name (const char *source, const char *dest)
{
/* Compare the basenames. */
- char const *source_basename = base_name (source);
- char const *dest_basename = base_name (dest);
+ char const *source_basename = last_component (source);
+ char const *dest_basename = last_component (dest);
size_t source_baselen = base_len (source_basename);
size_t dest_baselen = base_len (dest_basename);
bool identical_basenames =
dest_dirname = dir_name (dest);
if (stat (source_dirname, &source_dir_stats))
- {
- /* Shouldn't happen. */
- error (1, errno, "%s", source_dirname);
- }
+ {
+ /* Shouldn't happen. */
+ error (1, errno, "%s", source_dirname);
+ }
if (stat (dest_dirname, &dest_dir_stats))
- {
- /* Shouldn't happen. */
- error (1, errno, "%s", dest_dirname);
- }
+ {
+ /* Shouldn't happen. */
+ error (1, errno, "%s", dest_dirname);
+ }
same = SAME_INODE (source_dir_stats, dest_dir_stats);
#if ! _POSIX_NO_TRUNC && HAVE_PATHCONF && defined _PC_NAME_MAX
if (same && ! identical_basenames)
- {
- long name_max = (errno = 0, pathconf (dest_dirname, _PC_NAME_MAX));
- if (name_max < 0)
- {
- if (errno)
- {
- /* Shouldn't happen. */
- error (1, errno, "%s", dest_dirname);
- }
- same = false;
- }
- else
- same = (name_max <= min_baselen
- && memcmp (source_basename, dest_basename, name_max) == 0);
- }
+ {
+ long name_max = (errno = 0, pathconf (dest_dirname, _PC_NAME_MAX));
+ if (name_max < 0)
+ {
+ if (errno)
+ {
+ /* Shouldn't happen. */
+ error (1, errno, "%s", dest_dirname);
+ }
+ same = false;
+ }
+ else
+ same = (name_max <= min_baselen
+ && memcmp (source_basename, dest_basename, name_max) == 0);
+ }
#endif
free (source_dirname);