FreeCalypso > hg > themwi-system-sw
annotate libnumdb2/check_nanp.c @ 255:b0bf167bb846
themwi-update-outrt: add route-to-e911 option
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Tue, 15 Aug 2023 00:23:03 -0800 |
parents | bd493b21f215 |
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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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9 #include "../include/number_db_v2.h" |
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10 |
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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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38 |
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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 } |