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_impl.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 */ 81