FreeCalypso > hg > sms-coding-utils

annotate libcoding/number_encode.c @ 6:b831ee7d512c

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libcoding: add absolute time encoding function
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 05 Aug 2023 05:45:15 +0000
parents c79d09284c5f
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
4
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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2 * This module implements functions for encoding phone numbers.
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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3 */
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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4
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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5 #include <sys/types.h>
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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6 #include <ctype.h>
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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7 #include <stdio.h>
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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8 #include <stdlib.h>
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
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9
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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10 digit_char_to_gsm(ch)
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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11 {
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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12 switch (ch) {
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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13 case '0':
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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14 case '1':
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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15 case '2':
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
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16 case '3':
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
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17 case '4':
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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18 case '5':
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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19 case '6':
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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20 case '7':
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
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21 case '8':
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
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22 case '9':
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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23 return (ch - '0');
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
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24 case '*':
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
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25 return 0xA;
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
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26 case '#':
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
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27 return 0xB;
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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28 case 'a':
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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29 case 'b':
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
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30 case 'c':
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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31 return (ch - 'a' + 0xC);
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
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32 case 'A':
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
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33 case 'B':
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
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34 case 'C':
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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35 return (ch - 'A' + 0xC);
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
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36 }
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
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37 return (-1);
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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38 }
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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39
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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40 void
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
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41 pack_digit_bytes(digits, dest, num_digit_bytes)
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
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42 u_char *digits, *dest;
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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43 unsigned num_digit_bytes;
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
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44 {
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
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45 u_char *sp, *dp;
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
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46 unsigned n;
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
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47
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
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48 sp = digits;
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
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49 dp = dest;
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
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50 for (n = 0; n < num_digit_bytes; n++) {
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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51 *dp++ = sp[0] | (sp[1] << 4);
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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52 sp += 2;
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
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53 }
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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54 }
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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55
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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56 encode_phone_number_arg(arg, fixp, mode)
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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57 char *arg;
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
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58 u_char *fixp;
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
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59 {
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
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60 u_char digits[20];
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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61 unsigned ndigits, num_digit_bytes;
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
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62 char *cp, *endp;
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
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63 int c;
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
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64
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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65 cp = arg;
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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66 if (*cp == '+') {
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
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67 fixp[1] = 0x91;
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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68 cp++;
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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69 } else
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
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70 fixp[1] = 0x81;
5
c79d09284c5f encode_phone_number_arg(): don't print to stderr, just return -1
Mychaela Falconia <falcon@freecalypso.org>
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71 if (digit_char_to_gsm(*cp) < 0)
4
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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72 return(-1);
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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73 for (ndigits = 0; ; ndigits++) {
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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74 c = digit_char_to_gsm(*cp);
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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75 if (c < 0)
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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76 break;
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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77 cp++;
5
c79d09284c5f encode_phone_number_arg(): don't print to stderr, just return -1
Mychaela Falconia <falcon@freecalypso.org>
parents: 4
diff changeset
78 if (ndigits >= 20)
4
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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79 return(-1);
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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80 digits[ndigits] = c;
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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81 }
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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82 if (mode)
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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83 fixp[0] = ndigits;
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
84 if (ndigits & 1)
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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85 digits[ndigits++] = 0xF;
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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86 num_digit_bytes = ndigits >> 1;
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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87 if (!mode)
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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88 fixp[0] = num_digit_bytes + 1;
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
89 pack_digit_bytes(digits, fixp + 2, num_digit_bytes);
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
90 if (*cp == ',') {
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
91 cp++;
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
92 if (!isdigit(*cp))
5
c79d09284c5f encode_phone_number_arg(): don't print to stderr, just return -1
Mychaela Falconia <falcon@freecalypso.org>
parents: 4
diff changeset
93 return(-1);
4
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
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94 fixp[1] = strtoul(cp, &endp, 0);
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
95 if (*endp)
5
c79d09284c5f encode_phone_number_arg(): don't print to stderr, just return -1
Mychaela Falconia <falcon@freecalypso.org>
parents: 4
diff changeset
96 return(-1);
4
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
97 } else if (*cp)
5
c79d09284c5f encode_phone_number_arg(): don't print to stderr, just return -1
Mychaela Falconia <falcon@freecalypso.org>
parents: 4
diff changeset
98 return(-1);
4
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
99 return(0);
d88c5ab03447 libcoding/number_encode.c: import from fc-sim-tools/libutil
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
100 }