ReactOS 0.4.16-dev-297-gc569aee
magic.h
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1/*
2 * magic.h - PPP Magic Number definitions.
3 *
4 * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
16 * distribution.
17 *
18 * 3. The name "Carnegie Mellon University" must not be used to
19 * endorse or promote products derived from this software without
20 * prior written permission. For permission or any legal
21 * details, please contact
22 * Office of Technology Transfer
23 * Carnegie Mellon University
24 * 5000 Forbes Avenue
25 * Pittsburgh, PA 15213-3890
26 * (412) 268-4387, fax: (412) 268-7395
27 * tech-transfer@andrew.cmu.edu
28 *
29 * 4. Redistributions of any form whatsoever must retain the following
30 * acknowledgment:
31 * "This product includes software developed by Computing Services
32 * at Carnegie Mellon University (http://www.cmu.edu/computing/)."
33 *
34 * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
35 * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
36 * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
37 * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
38 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
39 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
40 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
41 *
42 * $Id: magic.h,v 1.5 2003/06/11 23:56:26 paulus Exp $
43 */
44/*****************************************************************************
45* randm.h - Random number generator header file.
46*
47* Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc.
48* Copyright (c) 1998 Global Election Systems Inc.
49*
50* The authors hereby grant permission to use, copy, modify, distribute,
51* and license this software and its documentation for any purpose, provided
52* that existing copyright notices are retained in all copies and that this
53* notice and the following disclaimer are included verbatim in any
54* distributions. No written agreement, license, or royalty fee is required
55* for any of the authorized uses.
56*
57* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR
58* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
59* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
60* IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
61* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
62* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
63* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
64* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
65* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
66* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
67*
68******************************************************************************
69* REVISION HISTORY
70*
71* 03-01-01 Marc Boucher <marc@mbsi.ca>
72* Ported to lwIP.
73* 98-05-29 Guy Lancaster <glanca@gesn.com>, Global Election Systems Inc.
74* Extracted from avos.
75*****************************************************************************/
76
77#include "netif/ppp/ppp_opts.h"
78#if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */
79
80#ifndef MAGIC_H
81#define MAGIC_H
82
83#ifdef __cplusplus
84extern "C" {
85#endif
86
87/***********************
88*** PUBLIC FUNCTIONS ***
89***********************/
90
91/*
92 * Initialize the random number generator.
93 */
94void magic_init(void);
95
96/*
97 * Randomize our random seed value. To be called for truly random events
98 * such as user operations and network traffic.
99 */
100void magic_randomize(void);
101
102/*
103 * Return a new random number.
104 */
105u32_t magic(void); /* Returns the next magic number */
106
107/*
108 * Fill buffer with random bytes
109 *
110 * Use the random pool to generate random data. This degrades to pseudo
111 * random when used faster than randomness is supplied using magic_churnrand().
112 * Thus it's important to make sure that the results of this are not
113 * published directly because one could predict the next result to at
114 * least some degree. Also, it's important to get a good seed before
115 * the first use.
116 */
117void magic_random_bytes(unsigned char *buf, u32_t buf_len);
118
119/*
120 * Return a new random number between 0 and (2^pow)-1 included.
121 */
122u32_t magic_pow(u8_t pow);
123
124#ifdef __cplusplus
125}
126#endif
127
128#endif /* MAGIC_H */
129
130#endif /* PPP_SUPPORT */
double pow(double x, double y)
Definition: freeldr.c:110
GLenum GLuint GLenum GLsizei const GLchar * buf
Definition: glext.h:7751
uint32_t u32_t
Definition: arch.h:129
uint8_t u8_t
Definition: arch.h:125