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annotate libutil/gsm7_decode.c @ 8:34bbb0585cab

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libutil: import from previous fc-pcsc-tools version
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 14 Mar 2021 05:42:37 +0000
parents
children c5e7c9e1d857
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8
34bbb0585cab libutil: import from previous fc-pcsc-tools version
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1 /*
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2 * This module contains functions for decoding GSM7 strings
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3 * that exist in various SIM files.
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4 */
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5
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6 #include <sys/types.h>
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7 #include <stdio.h>
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8
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9 static char gsm7_decode_table[128] = {
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10 '@', 0, '$', 0, 0, 0, 0, 0,
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11 0, 0, '\n', 0, 0, '\r', 0, 0,
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12 0, '_', 0, 0, 0, 0, 0, 0,
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13 0, 0, 0, 0, 0, 0, 0, 0,
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14 ' ', '!', '"', '#', 0, '%', '&', 0x27,
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15 '(', ')', '*', '+', ',', '-', '.', '/',
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16 '0', '1', '2', '3', '4', '5', '6', '7',
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17 '8', '9', ':', ';', '<', '=', '>', '?',
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18 0, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
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19 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
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20 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
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21 'X', 'Y', 'Z', 0, 0, 0, 0, 0,
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22 0, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
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23 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
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24 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
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25 'x', 'y', 'z', 0, 0, 0, 0, 0
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26 };
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27
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28 static char gsm7ext_decode_table[128] = {
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29 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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30 0, 0, 0, 0, '^', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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31 0, 0, 0, 0, 0, 0, 0, 0, '{', '}', 0, 0, 0, 0, 0, '\\',
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32 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '[', '~', ']', 0,
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33 '|', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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34 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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35 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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36 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
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37 };
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38
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39 void
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40 print_gsm7_string_to_file(data, nbytes, outf)
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41 u_char *data;
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42 unsigned nbytes;
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43 FILE *outf;
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44 {
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45 u_char *dp, *endp;
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46 int b, c;
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47
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48 dp = data;
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49 endp = data + nbytes;
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50 putc('"', outf);
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51 while (dp < endp) {
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52 b = *dp++;
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53 if (b == 0x1B) {
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54 if (dp >= endp || *dp == 0x1B || *dp == '\n' ||
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55 *dp == '\r') {
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56 putc('\\', outf);
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57 putc('e', outf);
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58 continue;
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59 }
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60 b = *dp++;
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61 c = gsm7ext_decode_table[b];
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62 if (!c) {
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63 fprintf(outf, "\\e\\%02X", b);
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64 continue;
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65 }
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66 } else {
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67 c = gsm7_decode_table[b];
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68 if (!c) {
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69 fprintf(outf, "\\%02X", b);
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70 continue;
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71 }
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72 }
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73 if (c == '\n') {
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74 putc('\\', outf);
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75 putc('n', outf);
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76 continue;
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77 }
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78 if (c == '\r') {
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79 putc('\\', outf);
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80 putc('r', outf);
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81 continue;
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82 }
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83 if (c == '"' || c == '\\')
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84 putc('\\', outf);
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85 putc(c, outf);
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86 }
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87 putc('"', outf);
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88 }