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annotate utils/themwi-check-own.c @ 15:a24f0794ab4d default tip

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INSTALL: document the new way
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 21 May 2024 00:29:21 +0000
parents dc1554b7dfb8
children
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1 /*
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2 * This utility performs a lookup in ThemWi number database to see
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3 * if a given NANP number is owned by us.
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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 <syslog.h>
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10
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11 #include <themwi/nanp/number_db_v2.h>
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12 #include <themwi/nanp/number_lookup.h>
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13 #include <themwi/nanp/number_utils.h>
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14
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15 int main(int argc, char **argv)
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16 {
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17 char nanp[11];
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18 const struct owned_number_rec *rec;
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19
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20 if (argc != 2) {
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21 usage: fprintf(stderr, "usage: %s 10-digit-number\n", argv[0]);
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22 exit(1);
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23 }
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24 if (grok_number_string(argv[1], 1) != 10)
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25 goto usage;
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26 dehyphen_number_string(argv[1], nanp);
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27 if (!is_nanp_valid_prefix(nanp)) {
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28 fprintf(stderr, "error: number violates NANP rules\n");
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29 exit(1);
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30 }
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31 openlog("themwi-check-own", LOG_PERROR, LOG_USER);
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32 if (read_number_db() < 0) {
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33 fprintf(stderr, "error reading number database\n");
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34 exit(1);
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35 }
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36 rec = numdb_lookup_nanp(nanp);
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37 printf("+1-%.3s-%.3s-%s is ", nanp, nanp+3, nanp+6);
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38 if (!rec) {
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39 puts("NOT owned by us");
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40 exit(1);
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41 }
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42 fputs("locally owned, ", stdout);
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43 switch (rec->usage & NUMBER_USAGE_MASK) {
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44 case NUMBER_USAGE_TYPE_RSVD:
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45 puts("reserved");
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46 break;
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47 case NUMBER_USAGE_TYPE_GSM_SUB:
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48 puts("assigned to a GSM subscriber");
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49 break;
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50 case NUMBER_USAGE_TYPE_ALIAS:
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51 printf("mapped to +1-%03u-%03u-%04u\n", rec->remap[0],
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52 rec->remap[1], rec->remap[2]);
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53 break;
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54 default:
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55 printf("unknown usage byte 0x%02X\n", rec->usage);
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56 }
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57 exit(0);
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58 }