FreeCalypso > hg > themwi-system-sw

annotate libnumdb2/check_nanp.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 bd493b21f215
children
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960ffce6c542 libnumdb: implement NANP lookup
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1 /*
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2 * The library function implemented in this module consults ThemWi number db
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3 * to see if a given NANP number is owned by us or not.
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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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bd493b21f215 libnumdb2: port check_nanp.c
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9 #include "../include/number_db_v2.h"
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11 extern struct numdb_file_hdr numdb_hdr;
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12 extern struct owned_number_rec *numdb_owned_numbers;
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13
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14 static int
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15 compare_owned_num(p1, p2)
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16 uint16_t *p1, *p2;
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17 {
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18 if (p1[0] < p2[0])
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19 return(-1);
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20 if (p1[0] > p2[0])
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21 return(1);
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22 if (p1[1] < p2[1])
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23 return(-1);
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24 if (p1[1] > p2[1])
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25 return(1);
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26 if (p1[2] < p2[2])
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27 return(-1);
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28 if (p1[2] > p2[2])
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29 return(1);
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30 return(0);
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31 }
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32
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33 struct owned_number_rec *
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34 numdb_lookup_nanp(numstr)
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35 char *numstr;
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36 {
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37 uint16_t key[3];
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39 if (!numdb_owned_numbers || !numdb_hdr.owned_number_count)
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40 return(0);
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41 key[0] = digits3_to_uint16(numstr);
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42 key[1] = digits3_to_uint16(numstr + 3);
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43 key[2] = digits4_to_uint16(numstr + 6);
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44 return bsearch(key, numdb_owned_numbers, numdb_hdr.owned_number_count,
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45 sizeof(struct owned_number_rec), compare_owned_num);
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46 }