magic.c

00001 /*****************************************************************************
00002 * magic.c - Network Random Number Generator program file.
00003 *
00004 * Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc.
00005 * portions Copyright (c) 1997 by Global Election Systems Inc.
00006 *
00007 * The authors hereby grant permission to use, copy, modify, distribute,
00008 * and license this software and its documentation for any purpose, provided
00009 * that existing copyright notices are retained in all copies and that this
00010 * notice and the following disclaimer are included verbatim in any 
00011 * distributions. No written agreement, license, or royalty fee is required
00012 * for any of the authorized uses.
00013 *
00014 * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR
00015 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
00016 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
00017 * IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
00018 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
00019 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
00020 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
00021 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
00022 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
00023 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00024 *
00025 ******************************************************************************
00026 * REVISION HISTORY
00027 *
00028 * 03-01-01 Marc Boucher <marc@mbsi.ca>
00029 *   Ported to lwIP.
00030 * 97-12-04 Guy Lancaster <lancasterg@acm.org>, Global Election Systems Inc.
00031 *   Original based on BSD magic.c.
00032 *****************************************************************************/
00033 /*
00034  * magic.c - PPP Magic Number routines.
00035  *
00036  * Copyright (c) 1989 Carnegie Mellon University.
00037  * All rights reserved.
00038  *
00039  * Redistribution and use in source and binary forms are permitted
00040  * provided that the above copyright notice and this paragraph are
00041  * duplicated in all such forms and that any documentation,
00042  * advertising materials, and other materials related to such
00043  * distribution and use acknowledge that the software was developed
00044  * by Carnegie Mellon University.  The name of the
00045  * University may not be used to endorse or promote products derived
00046  * from this software without specific prior written permission.
00047  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
00048  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
00049  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
00050  */
00051 
00052 #include "lwip/opt.h"
00053 
00054 #if PPP_SUPPORT
00055 
00056 #include "ppp_impl.h"
00057 #include "randm.h"
00058 #include "magic.h"
00059 
00060 
00061 /*
00062  * magicInit - Initialize the magic number generator.
00063  *
00064  * Since we use another random number generator that has its own
00065  * initialization, we do nothing here.
00066  */
00067 void magicInit()
00068 {
00069   return;
00070 }
00071 
00072 /*
00073  * magic - Returns the next magic number.
00074  */
00075 u32_t magic()
00076 {
00077   return avRandom();
00078 }
00079 
00080 #endif /* PPP_SUPPORT */