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annotate liboutrt/route_e164.c @ 265:e4a93ad611f3

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liboutrt: add prefix length output arg to route_e164_number()
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 13 Nov 2023 15:09:10 -0800
parents 333dbb7ce704
children
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333dbb7ce704 liboutrt: implement E.164 routing
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1 /*
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2 * In this module we implement routing of calls to E.164 numbers.
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3 */
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4
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5 #include <sys/types.h>
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6 #include <sys/socket.h>
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7 #include <netinet/in.h>
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8 #include <stdio.h>
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9 #include <stdint.h>
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10 #include <stdlib.h>
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11 #include <string.h>
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12 #include <strings.h>
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13 #include "../include/out_routes.h"
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14
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15 extern struct out_routes_header outrt_hdr;
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16 extern struct sip_out_dest *outrt_dest_array;
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17 extern struct inn_route *outrt_inn_array;
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18
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19 route_e164_number(target_num, destp, prefix_len_ret)
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20 char *target_num;
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21 struct sip_out_dest **destp;
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22 int *prefix_len_ret;
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23 {
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24 unsigned inn_index;
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25 struct inn_route *rec;
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26 struct sip_out_dest *dest;
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27 char *pp, *tp;
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28
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29 for (inn_index = 0; inn_index < outrt_hdr.num_inn; inn_index++) {
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30 rec = outrt_inn_array + inn_index;
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31 pp = rec->prefix;
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32 tp = target_num;
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33 while (*pp && *pp == *tp) {
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34 pp++;
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35 tp++;
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36 }
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37 if (*pp)
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38 continue;
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39 dest = outrt_dest_array + rec->sip_dest_id;
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40 *destp = dest;
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41 if (prefix_len_ret)
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42 *prefix_len_ret = pp - rec->prefix;
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43 return 1;
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44 }
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45 return 0;
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46 }