FreeCalypso > hg > freecalypso-tools
annotate uptools/libcoding/number_encode.c @ 411:8b8e723f5699
INSTALL: updates regarding the ARM7 gcc toolchain
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Thu, 25 Oct 2018 18:40:10 +0000 |
parents | 7154a231e4b5 |
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1 /* |
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2 * This library module implements the function that parses SMS destination |
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3 * addresses given by the user and encodes them into the GSM 03.40 |
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4 * TP-Destination-Address structure. |
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5 */ |
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6 |
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7 #include <sys/types.h> |
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8 #include <ctype.h> |
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9 #include <stdlib.h> |
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10 |
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11 digit_char_to_gsm(ch) |
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12 { |
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13 switch (ch) { |
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14 case '0': |
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15 case '1': |
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16 case '2': |
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17 case '3': |
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18 case '4': |
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19 case '5': |
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20 case '6': |
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21 case '7': |
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22 case '8': |
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23 case '9': |
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24 return (ch - '0'); |
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25 case '*': |
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26 return 0xA; |
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27 case '#': |
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28 return 0xB; |
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29 case 'a': |
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30 case 'b': |
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31 case 'c': |
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32 return (ch - 'a' + 0xC); |
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33 case 'A': |
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34 case 'B': |
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35 case 'C': |
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36 return (ch - 'A' + 0xC); |
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37 } |
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38 return (-1); |
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39 } |
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40 |
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41 parse_and_encode_dest_addr(input, outbuf) |
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42 char *input; |
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43 u_char *outbuf; |
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44 { |
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45 char *cp, *endp; |
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46 int d; |
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47 u_char digits[20]; |
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48 unsigned n; |
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49 |
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50 cp = input; |
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51 if (*cp == '+') { |
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52 outbuf[1] = 0x91; |
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53 cp++; |
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54 } else |
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55 outbuf[1] = 0x81; |
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56 if (digit_char_to_gsm(*cp) < 0) |
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57 return(-1); |
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58 n = 0; |
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59 while ((d = digit_char_to_gsm(*cp)) >= 0) { |
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60 cp++; |
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61 if (n >= 20) |
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62 return(-1); |
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63 digits[n++] = d; |
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64 } |
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65 outbuf[0] = n; |
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66 while (n < 20) |
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67 digits[n++] = 0xF; |
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68 if (*cp == ',') { |
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69 cp++; |
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70 if (!isdigit(*cp)) |
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71 return(-1); |
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72 outbuf[1] = strtoul(cp, &endp, 0); |
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73 if (*endp) |
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74 return(-1); |
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75 } else if (*cp) |
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76 return(-1); |
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77 for (n = 0; n < 10; n++) |
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78 outbuf[2+n] = (digits[n*2+1] << 4) | digits[n*2]; |
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79 return(0); |
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80 } |