1 files changed, 46 insertions, 0 deletions
diff --git a/login/updwtmp.c b/login/updwtmp.c
new file mode 100644
index 0000000000..9965a61fbb
--- /dev/null
+++ b/login/updwtmp.c
@@ -0,0 +1,46 @@
+/* Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <unistd.h>
+#include <utmp.h>
+
+#include "utmp-private.h"
+
+
+void
+updwtmp (const char *wtmp_file, const struct utmp *utmp)
+{
+  /* See whether utmpd is running.  */
+  if ((*__libc_utmp_daemon_functions.updwtmp) (wtmp_file, utmp) < 0)
+    {
+      /* Use the normal file, but if the current file is _PATH_UTMP or
+         _PATH_WTMP and the corresponding extended file (with an extra
+         'x' added to the pathname) exists, we use the extended file,
+         because the original file is in a different format.  */
+      if (strcmp (wtmp_file, _PATH_UTMP) == 0
+	  && __access (_PATH_UTMP "x", F_OK) == 0)
+	(*__libc_utmp_file_functions.updwtmp) (_PATH_UTMP "x", utmp);
+      else if (strcmp (wtmp_file, _PATH_WTMP) == 0
+	       && __access (_PATH_WTMP "x", F_OK) == 0)
+	(*__libc_utmp_file_functions.updwtmp) (_PATH_WTMP "x", utmp);
+      else
+	(*__libc_utmp_file_functions.updwtmp) (wtmp_file, utmp);
+    }
+}
+