X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fdup-safer.c;h=5441b960eb1200fdbc4cd8b3ec4350d20c8612c1;hb=64ee293cdac319d0f38cd0d31e758a823b7163ad;hp=f72fd845f397a1a6e413db765e8b08972220772a;hpb=196a4d4693a1b50eb309df386dfb5a0f72169d88;p=gnulib.git

diff --git a/lib/dup-safer.c b/lib/dup-safer.c
index f72fd845f..5441b960e 100644
--- a/lib/dup-safer.c
+++ b/lib/dup-safer.c
@@ -1,10 +1,11 @@
 /* Invoke dup, but avoid some glitches.
-   Copyright (C) 2001 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   Copyright (C) 2001, 2004-2006, 2009-2011 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.
+   the Free Software Foundation; either version 3 of the License, 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
@@ -12,32 +13,16 @@
    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.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* Written by Paul Eggert.  */
 
-#if HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <errno.h>
-#ifndef errno
-extern int errno;
-#endif
-
-#if HAVE_FCNTL_H
-# include <fcntl.h>
-#endif
+#include <config.h>
 
-#if HAVE_UNISTD_H
-# include <unistd.h>
-#endif
-#ifndef STDERR_FILENO
-# define STDERR_FILENO 2
-#endif
+#include "unistd-safer.h"
 
-#include <unistd-safer.h>
+#include <fcntl.h>
+#include <unistd.h>
 
 /* Like dup, but do not return STDIN_FILENO, STDOUT_FILENO, or
    STDERR_FILENO.  */
@@ -45,18 +30,5 @@ extern int errno;
 int
 dup_safer (int fd)
 {
-#ifdef F_DUPFD
   return fcntl (fd, F_DUPFD, STDERR_FILENO + 1);
-#else
-  int f = dup (fd);
-  if (0 <= f && f <= STDERR_FILENO)
-    {
-      int f1 = dup_safer (f);
-      int e = errno;
-      close (f);
-      errno = e;
-      f = f1;
-    }
-  return f;
-#endif
 }