FreeCalypso > hg > themwi-system-sw
annotate libnumdb/check_short.c @ 123:a36b731bfef9
sip-manual-out: implement sending BYE and CANCEL
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Thu, 29 Sep 2022 17:21:11 -0800 |
parents | 1d590563e64b |
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rev | line source |
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libnumdb: implement short number lookup
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1 /* |
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2 * The library function implemented in this module looks up 4-digit short |
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3 * dialing numbers in ThemWi number db to determine their disposition. |
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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 extern struct numdb_file_hdr numdb_hdr; |
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12 extern struct short_number_map *numdb_short_numbers; |
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13 |
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14 static int |
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15 compare_short_num(p1, p2) |
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16 struct short_number_map *p1, *p2; |
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17 { |
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18 if (p1->short_code < p2->short_code) |
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19 return(-1); |
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20 else if (p1->short_code > p2->short_code) |
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21 return(1); |
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22 else |
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23 return(0); |
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24 } |
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25 |
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26 lookup_short_dial_number(numstr, nanp_buf) |
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27 char *numstr, *nanp_buf; |
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28 { |
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29 struct short_number_map key, *res; |
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30 |
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31 if (!numdb_short_numbers || !numdb_hdr.short_number_count) |
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32 return(0); |
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33 key.short_code = strtoul(numstr, 0, 10); |
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34 res = bsearch(&key, numdb_short_numbers, numdb_hdr.short_number_count, |
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35 sizeof(struct short_number_map), compare_short_num); |
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36 if (!res) |
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37 return(0); |
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38 if (res->prefix < 200000 || res->prefix > 999999) { |
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39 /* either ITN or an invalid record, also treated as an ITN */ |
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40 nanp_buf[0] = '\0'; |
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41 return(1); |
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42 } |
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43 sprintf(nanp_buf, "%06u%04u", res->prefix, res->short_code); |
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44 return(1); |
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45 } |