mdw@git.distorted.org.uk Git - userv-utils/blob - ipif/mech-null.c

   1 /*
   2  * Null mechanism for udp tunnel (for testing purposes only)
   3  *
   4  * mechanisms: null
   5  * arguments: none
   6  *
   7  * key values: none
   8  * restrictions: none
   9  * encoding: no transformation
  10  */
  11 /*
  12  * This file is part of ipif, part of userv-utils
  13  *
  14  * Copyright 1996-2013 Ian Jackson <ijackson@chiark.greenend.org.uk>
  15  * Copyright 1998 David Damerell <damerell@chiark.greenend.org.uk>
  16  * Copyright 1999,2003
  17  *    Chancellor Masters and Scholars of the University of Cambridge
  18  * Copyright 2010 Tony Finch <fanf@dotat.at>
  19  *
  20  * This is free software; you can redistribute it and/or modify it
  21  * under the terms of the GNU General Public License as published by
  22  * the Free Software Foundation; either version 3 of the License, or
  23  * (at your option) any later version.
  24  *
  25  * This program is distributed in the hope that it will be useful, but
  26  * WITHOUT ANY WARRANTY; without even the implied warranty of
  27  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  28  * General Public License for more details.
  29  *
  30  * You should have received a copy of the GNU General Public License
  31  * along with userv-utils; if not, see http://www.gnu.org/licenses/.
  32  */
  33
  34 #include "forwarder.h"
  35
  36 static void mes_null(struct mechdata **md_r, int *maxprefix_io, int *maxsuffix_io) { }
  37 static void mds_null(struct mechdata **md_r) { }
  38 static void menc_null(struct mechdata *md, struct buffer *buf) { }
  39 static const char *mdec_null(struct mechdata *md, struct buffer *buf) { return 0; }
  40
  41 STANDARD_MECHANISMLIST("null",null)