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doc/Use-outside-USA: Fake-NANP-numbers article is here
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 27 Nov 2023 21:49:19 -0800
parents 7749ae8b6414
children
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030143a95fb5 themwi-dump-numdb utility written, compiles
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1 /*
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2 * This program is a debug utility: it reads and dumps the compiled
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3 * binary form of ThemWi number database.
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4 */
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5
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6 #include <stdio.h>
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7 #include <stdint.h>
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8 #include <stdlib.h>
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9 #include "../include/number_db_file.h"
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10
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11 static char binfile_default_pathname[] = "/var/gsm/number-db.bin";
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12 static char *binfile_pathname;
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13 static FILE *inf;
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14 static struct numdb_file_hdr hdr;
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15
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16 static void
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17 dump_owned_numbers()
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18 {
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19 unsigned count;
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20 uint64_t rec;
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21
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22 for (count = 0; count < hdr.owned_number_count; count++) {
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23 if (fread(&rec, sizeof rec, 1, inf) != 1) {
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24 fprintf(stderr, "error reading record from %s\n",
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25 binfile_pathname);
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26 exit(1);
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27 }
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28 if (rec < 2000000000ULL || rec > 9999999999ULL) {
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29 fprintf(stderr,
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30 "owned number record #%u: uint64_t value out of valid range\n",
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31 count);
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32 exit(1);
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33 }
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34 printf("Owned NANP number: +1%llu\n", rec);
6
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35 }
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36 }
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37
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38 static void
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39 dump_short_numbers()
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40 {
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41 unsigned count;
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42 struct short_number_map rec;
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43
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44 for (count = 0; count < hdr.short_number_count; count++) {
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45 if (fread(&rec, sizeof rec, 1, inf) != 1) {
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46 fprintf(stderr, "error reading record from %s\n",
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47 binfile_pathname);
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48 exit(1);
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49 }
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50 if (rec.short_code > 9999) {
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51 fprintf(stderr,
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52 "short number record #%u: short_code field out of valid range\n",
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53 count);
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54 exit(1);
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55 }
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56 if (!rec.prefix) {
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57 printf("Short number %04u is an ITN\n", rec.short_code);
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58 continue;
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59 }
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60 if (rec.prefix < 200000 || rec.prefix > 999999) {
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61 fprintf(stderr,
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62 "short number record #%u: prefix field out of valid range\n",
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63 count);
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64 exit(1);
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65 }
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66 printf("Short number %04u maps to +1%06u%04u\n",
6
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67 rec.short_code, rec.prefix, rec.short_code);
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68 }
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69 }
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70
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71 main(argc, argv)
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72 char **argv;
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73 {
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74 if (argc > 2) {
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75 fprintf(stderr, "usage: %s [binfile]\n", argv[0]);
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76 exit(1);
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77 }
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78 if (argv[1])
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79 binfile_pathname = argv[1];
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80 else
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81 binfile_pathname = binfile_default_pathname;
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82 inf = fopen(binfile_pathname, "r");
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83 if (!inf) {
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84 perror(binfile_pathname);
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85 exit(1);
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86 }
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87 if (fread(&hdr, sizeof hdr, 1, inf) != 1) {
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88 fprintf(stderr, "error reading header from %s\n",
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89 binfile_pathname);
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90 exit(1);
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91 }
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92 printf("Count of owned NANP numbers: %u\n", hdr.owned_number_count);
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93 printf("Count of defined short numbers: %u\n", hdr.short_number_count);
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94 dump_owned_numbers();
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95 dump_short_numbers();
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96 exit(0);
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97 }