(check_version): Accept identical versions too.

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

diff --git a/lib/save-cwd.c b/lib/save-cwd.c
index 596b78c..5ad790a 100644 (file)
--- a/lib/save-cwd.c
+++ b/lib/save-cwd.c
@@ -15,7 +15,7 @@
 
    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.  */
 
@@ -33,17 +33,26 @@
 # include <unistd.h>
 #endif
 
-#if HAVE_FCNTL_H
-# include <fcntl.h>
-#else
-# include <sys/file.h>
-#endif
+#include <fcntl.h>
 
 #include <errno.h>
 
 #include "chdir-long.h"
+#include "unistd-safer.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
@@ -69,10 +78,10 @@ save_cwd (struct saved_cwd *cwd)
 {
   cwd->name = NULL;
 
-  cwd->desc = open (".", O_RDONLY);
+  cwd->desc = fd_safer (open (".", O_RDONLY));
   if (cwd->desc < 0)
     {
-      cwd->desc = open (".", O_WRONLY);
+      cwd->desc = fd_safer (open (".", O_WRONLY));
       if (cwd->desc < 0)
        {
          cwd->name = xgetcwd ();