Move to here from utf16-ucs4.h.

[gnulib.git] / lib / save-cwd.c

diff --git a/lib/save-cwd.c b/lib/save-cwd.c
index 596b78c..f07973a 100644 (file)
--- a/lib/save-cwd.c
+++ b/lib/save-cwd.c
@@ -1,7 +1,7 @@
 /* save-cwd.c -- Save and restore current working directory.
 
-   Copyright (C) 1995, 1997, 1998, 2003, 2004, 2005 Free Software
-   Foundation, Inc.
+   Copyright (C) 1995, 1997, 1998, 2003, 2004, 2005, 2006 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
@@ -15,35 +15,36 @@
 
    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.  */
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
 
 /* Written by Jim Meyering.  */
 
-#if HAVE_CONFIG_H
-# include "config.h"
-#endif
+#include <config.h>
 
 #include "save-cwd.h"
 
+#include <errno.h>
 #include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
-
-#if HAVE_UNISTD_H
-# include <unistd.h>
-#endif
-
-#if HAVE_FCNTL_H
-# include <fcntl.h>
-#else
-# include <sys/file.h>
-#endif
-
-#include <errno.h>
+#include <unistd.h>
 
 #include "chdir-long.h"
+#include "fcntl--.h"
 #include "xgetcwd.h"
 
+/* On systems without the fchdir function (WOE), pretend that open
+   always returns -1 so that save_cwd resorts to using xgetcwd.
+   Since chdir_long requires fchdir, use chdir instead.  */
+#if !HAVE_FCHDIR
+# undef open
+# define open(File, Flags) (-1)
+# undef fchdir
+# define fchdir(Fd) (abort (), -1)
+# undef chdir_long
+# define chdir_long(Dir) chdir (Dir)
+#endif
+
 /* Record the location of the current working directory in CWD so that
    the program may change to other directories and later use restore_cwd
    to return to the recorded location.  This function may allocate
@@ -72,12 +73,8 @@ save_cwd (struct saved_cwd *cwd)
   cwd->desc = open (".", O_RDONLY);
   if (cwd->desc < 0)
     {
-      cwd->desc = open (".", O_WRONLY);
-      if (cwd->desc < 0)
-       {
-         cwd->name = xgetcwd ();
-         return cwd->name ? 0 : -1;
-       }
+      cwd->name = xgetcwd ();
+      return cwd->name ? 0 : -1;
     }
 
   return 0;