annotate Meerwald/gen_zhu_sig.c @ 18:3bdb67e76858

mse opt.
author Peter Meerwald <pmeerw@cosy.sbg.ac.at>
date Fri, 30 Jan 2009 12:46:49 +0100
parents 4987db85cfae
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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1 #include "wm.h"
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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2
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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3 char *progname;
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4
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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5 void usage(void) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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6 fprintf(stderr, "usage: %s [-a n] [-d n] [-e n] [-f n] [-F file] [-l n] [-m n] [-n n] [-o file] [-s file] [-S n]\n\n", progname);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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7 fprintf(stderr, "\t-a n\t\talpha factor (default 0.2)\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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8 fprintf(stderr, "\t-d n\t\tdeviation (default 1.0)\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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9 fprintf(stderr, "\t-e n\t\twavelet filtering method (default 2)\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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10 fprintf(stderr, "\t-f n\t\tfilter number (default 1)\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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11 fprintf(stderr, "\t-F file\t\tfilter definition file (default 'filter.dat')\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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12 fprintf(stderr, "\t-h\t\tprint usage\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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13 fprintf(stderr, "\t-l n\t\tdecomposition level (default 7)\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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14 fprintf(stderr, "\t-m n\t\tmean value (default 0.0)\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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15 fprintf(stderr, "\t-n n\t\twatermark length (default 1000)\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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16 fprintf(stderr, "\t-o file\t\toutput file\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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17 fprintf(stderr, "\t-s file\t\tuse signature file's embedding information\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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18 fprintf(stderr, "\t-S n\t\tseed\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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19 exit(0);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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20 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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21
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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22 int main(int argc, char *argv[]) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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23 FILE *out = stdout;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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24 FILE *sig = NULL;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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25
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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26 char output_name[MAXPATHLEN] = "(stdout)";
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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27 char signature_name[MAXPATHLEN];
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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28
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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29 int c;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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30 int n = 1000;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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31 int s = 0;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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32 int e = 2;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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33 int f = 1;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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34 char F[MAXPATHLEN] = "filter.dat";
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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35 double a = 0.2;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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36 double m = 0.0;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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37 double d = 1.0;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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38 int l = 7;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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39
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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40 progname = argv[0];
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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41
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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42 while ((c = getopt(argc, argv, "a:d:e:f:F:h?l:m:n:o:s:S:")) != EOF) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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43 switch (c) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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44 case 'a':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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45 a = atof(optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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46 if (a <= 0.0) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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47 fprintf(stderr, "%s: alpha factor %f out of range\n", progname, a);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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48 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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49 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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50 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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51 case 'l':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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52 l = atoi(optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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53 if (l <= 0) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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54 fprintf(stderr, "%s: decomposition level %d out of range\n", progname, l);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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55 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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56 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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57 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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58 case 'd':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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59 d = atof(optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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60 if (d <= 0.0) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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61 fprintf(stderr, "%s: deviation %f out of range\n", progname, d);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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62 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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63 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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64 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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65 case 'e':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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66 e = atoi(optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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67 if (e < 0) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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68 fprintf(stderr, "%s: wavelet filtering method %d out of range\n", progname, e);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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69 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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70 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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71 case 'f':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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72 f = atoi(optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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73 if (f <= 0) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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74 fprintf(stderr, "%s: filter number %d out of range\n", progname, f);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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75 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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76 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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77 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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78 case 'F':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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79 strcpy(F, optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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80 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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81 case 'h':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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82 case '?':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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83 usage();
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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84 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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85 case 'm':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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86 m = atof(optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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87 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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88 case 'n':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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89 n = atoi(optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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90 if (n < 1 || n > 32000) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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91 fprintf(stderr, "%s: watermark length %d out of range\n", progname, n);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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92 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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93 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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94 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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95 case 'o':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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96 if ((out = fopen(optarg, "w")) == NULL) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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97 fprintf(stderr, "%s: unable to open output file %s\n", progname, optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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98 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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99 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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100 strcpy(output_name, optarg);
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101 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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102 case 's':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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103 if ((sig = fopen(optarg, "r")) == NULL) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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104 fprintf(stderr, "%s: unable to open signature file %s\n", progname, optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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105 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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106 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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107 strcpy(signature_name, optarg);
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108 break;
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parents:
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109 case 'S':
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parents:
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110 s = atoi(optarg);
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111 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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112 }
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parents:
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113 }
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114
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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115 argc -= optind;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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116 argv += optind;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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117
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118 if (argc > 0) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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119 usage();
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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120 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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121 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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122
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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123 if (sig) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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124 char line[32];
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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125 fgets(line, sizeof(line), sig);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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126 if (strspn(line, "ZHSG") >= 4) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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127 if (n == 0)
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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128 fscanf(sig, "%d\n", &n);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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129 else
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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130 fscanf(sig, "%*d\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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131 if (a == 0.0)
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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132 fscanf(sig, "%lf\n", &a);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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133 else
16
4987db85cfae fix another scanf() warning
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents: 15
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134 fscanf(sig, "%*f\n");
0
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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135 if (l == 0)
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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136 fscanf(sig, "%d\n", &l);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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137 else
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
138 fscanf(sig, "%*d\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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139 if (e < 0)
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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140 fscanf(sig, "%d\n", &e);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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141 else
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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142 fscanf(sig, "%*d\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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143 if (f == 0)
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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144 fscanf(sig, "%d\n", &f);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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145 else
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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146 fscanf(sig, "%*d\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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147 if (!strcmp(F, ""))
15
ad1d224896c5 fix scanf() warning
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents: 8
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148 fscanf(sig, "%[^\n\r]\n", F);
0
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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149 else
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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150 fscanf(sig, "%*[^\n\r]\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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151 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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152 else {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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153 fprintf(stderr, "%s: invalid signature file %s\n", progname, signature_name);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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154 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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155 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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156 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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157
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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158 if (s)
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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159 srandom(s);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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160 else
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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161 srandom(time(NULL) * getpid());
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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162
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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163 fprintf(out, "ZHSG\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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164 fprintf(out, "%d\n", n);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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165 fprintf(out, "%f\n", a);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
166 fprintf(out, "%d\n", l);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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167 fprintf(out, "%d\n", e);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
168 fprintf(out, "%d\n", f);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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169 fprintf(out, "%s\n", F);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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170
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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171 n >>= 1;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
172 while (n > 0) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
173 double x;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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174 double x1, x2;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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175
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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176 /*
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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177 * Algorithm P (Polar method for normal deviates),
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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178 * Knuth, D., "The Art of Computer Programming", Vol. 2, 3rd Edition, p. 122
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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179 */
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
180 do {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
181 x1 = 2.0 * ((random() & RAND_MAX) / ((double) RAND_MAX + 1.0)) - 1.0;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
182 x2 = 2.0 * ((random() & RAND_MAX) / ((double) RAND_MAX + 1.0)) - 1.0;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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183 x = x1 * x1 + x2 * x2;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
184 } while (x >= 1.0);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
185 x1 *= sqrt((-2.0) * log(x) / x);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
186 x2 *= sqrt((-2.0) * log(x) / x);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
187
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
188 fprintf(out, "%f\n", m + d * x1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
189 fprintf(out, "%f\n", m + d * x2);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
190
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
191 n--;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
192 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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193
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
194 fclose(out);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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195
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
196 exit(0);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
197 }

Repositories maintained by Peter Meerwald, pmeerw@pmeerw.net.