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magic.c
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1 /*****************************************************************************
2 * magic.c - Network Random Number Generator program file.
3 *
4 * Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc.
5 * portions Copyright (c) 1997 by Global Election Systems Inc.
6 *
7 * The authors hereby grant permission to use, copy, modify, distribute,
8 * and license this software and its documentation for any purpose, provided
9 * that existing copyright notices are retained in all copies and that this
10 * notice and the following disclaimer are included verbatim in any
11 * distributions. No written agreement, license, or royalty fee is required
12 * for any of the authorized uses.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 *
25 ******************************************************************************
26 * REVISION HISTORY
27 *
28 * 03-01-01 Marc Boucher <marc@mbsi.ca>
29 * Ported to lwIP.
30 * 97-12-04 Guy Lancaster <lancasterg@acm.org>, Global Election Systems Inc.
31 * Original based on BSD magic.c.
32 *****************************************************************************/
33 /*
34  * magic.c - PPP Magic Number routines.
35  *
36  * Copyright (c) 1989 Carnegie Mellon University.
37  * All rights reserved.
38  *
39  * Redistribution and use in source and binary forms are permitted
40  * provided that the above copyright notice and this paragraph are
41  * duplicated in all such forms and that any documentation,
42  * advertising materials, and other materials related to such
43  * distribution and use acknowledge that the software was developed
44  * by Carnegie Mellon University. The name of the
45  * University may not be used to endorse or promote products derived
46  * from this software without specific prior written permission.
47  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
48  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
49  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
50  */
51 
52 #include "lwip/opt.h"
53 
54 #if PPP_SUPPORT
55 
56 #include "ppp.h"
57 #include "randm.h"
58 #include "magic.h"
59 
60 
61 /*
62  * magicInit - Initialize the magic number generator.
63  *
64  * Since we use another random number generator that has its own
65  * initialization, we do nothing here.
66  */
67 void magicInit()
68 {
69  return;
70 }
71 
72 /*
73  * magic - Returns the next magic number.
74  */
75 u32_t magic()
76 {
77  return avRandom();
78 }
79 
80 #endif /* PPP_SUPPORT */