1 /* Determine whether two file names refer to the same file.
2 Copyright (C) 1997-2000 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2, or (at your option)
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software Foundation,
16 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
18 /* written by Jim Meyering */
31 #include <sys/types.h>
45 # define _(Text) gettext (Text)
50 #define STREQ(a, b) (strcmp ((a), (b)) == 0)
52 #ifndef HAVE_DECL_FREE
53 "this configure-time declaration test was not run"
59 char *base_name PARAMS ((char const *));
61 #define SAME_INODE(Stat_buf_1, Stat_buf_2) \
62 ((Stat_buf_1).st_ino == (Stat_buf_2).st_ino \
63 && (Stat_buf_1).st_dev == (Stat_buf_2).st_dev)
65 /* Return nonzero if SOURCE and DEST point to the same name in the same
69 same_name (const char *source, const char *dest)
71 struct stat source_dir_stats;
72 struct stat dest_dir_stats;
73 char *source_dirname, *dest_dirname;
75 source_dirname = dir_name (source);
76 dest_dirname = dir_name (dest);
77 if (source_dirname == NULL || dest_dirname == NULL)
78 error (1, 0, _("virtual memory exhausted"));
80 if (stat (source_dirname, &source_dir_stats))
82 /* Shouldn't happen. */
83 error (1, errno, "%s", source_dirname);
86 if (stat (dest_dirname, &dest_dir_stats))
88 /* Shouldn't happen. */
89 error (1, errno, "%s", dest_dirname);
92 free (source_dirname);
95 return (SAME_INODE (source_dir_stats, dest_dir_stats)
96 && STREQ (base_name (source), base_name (dest)));