(__xstrtol): If there is no number but there

[gnulib.git] / lib / same.c

diff --git a/lib/same.c b/lib/same.c
index 8dda9fd..0e2807a 100644 (file)
--- a/lib/same.c
+++ b/lib/same.c
@@ -1,3 +1,22 @@
+/* Determine whether two file names refer to the same file.
+   Copyright (C) 1997-2000 Free Software Foundation, Inc.
+
+   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.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+/* written by Jim Meyering */
+
 #if HAVE_CONFIG_H
 # include <config.h>
 #endif
@@ -17,9 +36,16 @@
 extern int errno;
 #endif
 
+#if HAVE_STRING_H
+# include <string.h>
+#else
+# include <strings.h>
+#endif
+
 #include "same.h"
 #include "dirname.h"
 #include "error.h"
+#include "xalloc.h"
 
 #if ENABLE_NLS
 # include <libintl.h>
@@ -28,14 +54,13 @@ extern int errno;
 # define _(Text) Text
 #endif
 
-#define STREQ(a, b) (strcmp ((a), (b)) == 0)
-
 #ifndef HAVE_DECL_FREE
+"this configure-time declaration test was not run"
+#endif
+#if !HAVE_DECL_FREE
 void free ();
 #endif
 
-char *base_name PARAMS ((char const *));
-
 #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)
@@ -49,11 +74,11 @@ same_name (const char *source, const char *dest)
   struct stat source_dir_stats;
   struct stat dest_dir_stats;
   char *source_dirname, *dest_dirname;
+  char *source_basename, *dest_basename;
+  size_t source_baselen, dest_baselen;
 
   source_dirname = dir_name (source);
   dest_dirname = dir_name (dest);
-  if (source_dirname == NULL || dest_dirname == NULL)
-    error (1, 0, _("virtual memory exhausted"));
 
   if (stat (source_dirname, &source_dir_stats))
     {
@@ -70,6 +95,13 @@ same_name (const char *source, const char *dest)
   free (source_dirname);
   free (dest_dirname);
 
-  return (SAME_INODE (source_dir_stats, dest_dir_stats)
-         && STREQ (base_name (source), base_name (dest)));
+  if (! SAME_INODE (source_dir_stats, dest_dir_stats))
+    return 0;
+
+  source_basename = base_name (source);
+  dest_basename = base_name (dest);
+  source_baselen = base_len (source_basename);
+  dest_baselen = base_len (dest_basename);
+  return (source_baselen == dest_baselen
+         && memcmp (source_basename, dest_basename, dest_baselen) == 0);
 }