[Patches] posixmodulec fails with stat("\\") or stat("/") on Windows.

[Mark Hammond]

Checkin 2.131 of posixmodule.c changed os.stat on Windows, so that
"/bin/" type notation (trailing backslash) would work on Windows to
be consistent with Unix.

However, the patch broke the simple case of: os.stat("\\")

This did work in 1.5.2, and obviously should!

This patch addresses this, and restores the correct behaviour.

diff -c -r2.133 posixmodule.c
*** posixmodule.c	2000/05/01 16:17:24	2.133
--- posixmodule.c	2000/05/03 01:58:57
***************
*** 567,576 ****
  	}

  	if ((pathlen > 0) && (path[pathlen-1] == '\\' || path[pathlen-1]
== '/')) {
! 		/* exception for drive root */
! 		if (!((pathlen == 3) &&
  		      (path[1] == ':') &&
! 		      (path[2] == '\\' || path[2] == '/')))
  		{
  			strncpy(pathcopy, path, pathlen);
  			pathcopy[pathlen-1] = '\0'; /* nuke the trailing backslash */
--- 567,577 ----
  	}

  	if ((pathlen > 0) && (path[pathlen-1] == '\\' || path[pathlen-1]
== '/')) {
! 		/* exception for specific or current drive root */
! 		if (!((pathlen == 1) ||
! 		      ((pathlen == 3) &&
  		      (path[1] == ':') &&
! 		      (path[2] == '\\' || path[2] == '/'))))
  		{
  			strncpy(pathcopy, path, pathlen);
  			pathcopy[pathlen-1] = '\0'; /* nuke the trailing backslash */

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Mark.