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1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
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2 /* This Source Code Form is subject to the terms of the Mozilla Public |
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3 * License, v. 2.0. If a copy of the MPL was not distributed with this |
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4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
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5 |
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6 /* |
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7 ** File: rngseed.c |
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8 ** Description: |
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9 ** Test NSPR's Random Number Seed generator |
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10 ** |
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11 ** Initial test: Just make sure it outputs some data. |
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12 ** |
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13 ** ... more? ... check some iterations to ensure it is random (no dupes) |
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14 ** ... more? ... histogram distribution of random numbers |
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15 */ |
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16 |
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17 #include "plgetopt.h" |
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18 #include "nspr.h" |
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19 #include "prrng.h" |
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20 #include <stdio.h> |
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21 #include <stdlib.h> |
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22 #include <string.h> |
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23 |
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24 /* |
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25 ** Test harness infrastructure |
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26 */ |
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27 PRLogModuleInfo *lm; |
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28 PRLogModuleLevel msgLevel = PR_LOG_NONE; |
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29 PRIntn debug = 0; |
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30 PRUint32 failed_already = 0; |
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31 /* end Test harness infrastructure */ |
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32 |
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33 PRIntn optRandCount = 30; |
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34 char buf[40]; |
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35 PRSize bufSize = sizeof(buf); |
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36 PRSize rSize; |
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37 PRIntn i; |
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38 |
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39 /* |
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40 ** Emit help text for this test |
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41 */ |
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42 static void Help( void ) |
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43 { |
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44 printf("Template: Help(): display your help message(s) here"); |
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45 exit(1); |
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46 } /* end Help() */ |
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47 |
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48 static void PrintRand( void *buf, PRIntn size ) |
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49 { |
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50 PRUint32 *rp = buf; |
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51 PRIntn i; |
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52 |
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53 printf("%4.4d--\n", size ); |
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54 while (size > 0 ) { |
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55 switch( size ) { |
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56 case 1 : |
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57 printf("%2.2X\n", *(rp++) ); |
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58 size -= 4; |
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59 break; |
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60 case 2 : |
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61 printf("%4.4X\n", *(rp++) ); |
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62 size -= 4; |
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63 break; |
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64 case 3 : |
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65 printf("%6.6X\n", *(rp++) ); |
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66 size -= 4; |
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67 break; |
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68 default: |
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69 while ( size >= 4) { |
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70 PRIntn i = 3; |
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71 do { |
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72 printf("%8.8X ", *(rp++) ); |
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73 size -= 4; |
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74 } while( i-- ); |
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75 i = 3; |
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76 printf("\n"); |
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77 } |
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78 break; |
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79 } /* end switch() */ |
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80 } /* end while() */ |
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81 } /* end PrintRand() */ |
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82 |
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83 |
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84 int main(int argc, char **argv) |
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85 { |
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86 { |
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87 /* |
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88 ** Get command line options |
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89 */ |
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90 PLOptStatus os; |
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91 PLOptState *opt = PL_CreateOptState(argc, argv, "hdv"); |
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92 |
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93 while (PL_OPT_EOL != (os = PL_GetNextOpt(opt))) |
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94 { |
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95 if (PL_OPT_BAD == os) continue; |
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96 switch (opt->option) |
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97 { |
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98 case 'd': /* debug */ |
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99 debug = 1; |
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100 msgLevel = PR_LOG_ERROR; |
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101 break; |
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102 case 'v': /* verbose mode */ |
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103 msgLevel = PR_LOG_DEBUG; |
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104 break; |
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105 case 'h': /* help message */ |
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106 Help(); |
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107 break; |
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108 default: |
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109 break; |
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110 } |
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111 } |
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112 PL_DestroyOptState(opt); |
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113 } |
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114 |
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115 lm = PR_NewLogModule("Test"); /* Initialize logging */ |
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116 for ( i = 0; i < optRandCount ; i++ ) { |
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117 memset( buf, 0, bufSize ); |
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118 rSize = PR_GetRandomNoise( buf, bufSize ); |
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119 if (!rSize) { |
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120 fprintf(stderr, "Not implemented\n" ); |
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121 failed_already = PR_TRUE; |
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122 break; |
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123 } |
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124 if (debug) PrintRand( buf, rSize ); |
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125 } |
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126 |
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127 if (debug) printf("%s\n", (failed_already)? "FAIL" : "PASS"); |
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128 return( (failed_already == PR_TRUE )? 1 : 0 ); |
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129 } /* main() */ |
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130 /* end template.c */ |
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131 |