FreeCalypso > hg > freecalypso-tools

annotate uptools/libcoding/number_encode.c @ 1011:6d9b10633f10 default tip

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etmsync Pirelli IMEI retrieval: fix poor use of printf() Bug reported by Vadim Yanitskiy <fixeria@osmocom.org>: the construct where a static-allocated string was passed to printf() without any format arguments causes newer compilers to report a security problem. Given that formatted output is not needed here, just fixed string output, change printf() to fputs(), and direct the error message to stderr while at it.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 23 May 2024 17:29:57 +0000
parents 7154a231e4b5
children
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7154a231e4b5 uptools/libcoding: SMS dest address parsing and encoding implemented
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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 }