* utilunix.c (canonicalize_pathname): Don't extend empty path

to "." - it can corrupt memory.

src/ChangeLog

@@ -1,5 +1,8 @@
 2002-07-26  Pavel Roskin  <proski@gnu.org>
 
+	* utilunix.c (canonicalize_pathname): Don't extend empty path
+	to "." - it can corrupt memory.
+
 	* cmd.c (copymove_cmd_with_default): Remove, it's unused.
 	(copy_cmd_local): New function, copy within panel.
 	(ren_cmd_local): New function, rename within panel.

src/utilunix.c

@@ -570,6 +570,9 @@ char *canonicalize_pathname (char *path)
     int i, start;
     char stub_char;
 
+    if (!*path)
+	return path;
+
     stub_char = (*path == PATH_SEP) ? PATH_SEP : '.';
 
     /* Walk along path looking for things to compact. */