FreeCalypso > hg > freecalypso-tools

annotate miscutil/make-imeisv.c @ 1014:961efadd530a default tip

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fc-shell TCH DL handler: add support for CSD modes TCH DL capture mechanism in FC Tourmaline firmware has been extended to support CSD modes in addition to speech - add the necessary support on the host tools side. It needs to be noted that this mechanism in its present state does NOT provide the debug utility value that was sought: as we learned only after the code was implemented, TI's DSP has a misfeature in that the buffer we are reading (a_dd_0[]) is zeroed out when the IDS block is enabled, i.e., we are reading all zeros and not the real DL bits we were after. But since the code has already been written, we are keeping it - perhaps we can do some tests with IDS disabled.
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 26 Nov 2024 06:27:43 +0000
parents 2dcfad8a3ed0
children
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2dcfad8a3ed0 make-imeisv utility written
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
2dcfad8a3ed0 make-imeisv utility written
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2 * This utility constructs a 16-digit IMEISV from a 15-digit IMEI
2dcfad8a3ed0 make-imeisv utility written
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3 * (which must have a valid Luhn check digit) and a 2-digit SV field.
2dcfad8a3ed0 make-imeisv utility written
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4 * It is intended for use in shell scripts.
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5 */
2dcfad8a3ed0 make-imeisv utility written
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6
2dcfad8a3ed0 make-imeisv utility written
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7 #include <stdio.h>
2dcfad8a3ed0 make-imeisv utility written
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8 #include <ctype.h>
2dcfad8a3ed0 make-imeisv utility written
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9 #include <stdlib.h>
2dcfad8a3ed0 make-imeisv utility written
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10
2dcfad8a3ed0 make-imeisv utility written
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11 parse_imei_arg(input, buf)
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12 char *input, *buf;
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13 {
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14 char *cp;
2dcfad8a3ed0 make-imeisv utility written
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15 int i;
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16
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17 cp = input;
2dcfad8a3ed0 make-imeisv utility written
Mychaela Falconia <falcon@freecalypso.org>
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18 if (!isdigit(*cp)) {
2dcfad8a3ed0 make-imeisv utility written
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19 inv: fprintf(stderr,
2dcfad8a3ed0 make-imeisv utility written
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20 "error: IMEI argument must have 15 decimal digits\n");
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21 exit(1);
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22 }
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23 for (i = 0; i < 15; i++) {
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24 if (ispunct(*cp))
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25 cp++;
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26 if (!isdigit(*cp))
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27 goto inv;
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28 buf[i] = *cp++;
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29 }
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30 if (*cp)
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31 goto inv;
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32 }
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33
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34 check_luhn(digits)
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35 char *digits;
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36 {
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37 int i, dig, sum;
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38
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39 sum = 0;
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40 for (i = 0; i < 14; i++) {
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41 dig = digits[i] - '0';
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42 if (i & 1) {
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43 dig *= 2;
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Mychaela Falconia <falcon@freecalypso.org>
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44 if (dig > 9)
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45 dig -= 9;
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46 }
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47 sum += dig;
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48 }
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Mychaela Falconia <falcon@freecalypso.org>
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49 dig = sum % 10;
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Mychaela Falconia <falcon@freecalypso.org>
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50 if (dig)
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51 dig = 10 - dig;
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Mychaela Falconia <falcon@freecalypso.org>
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52 if (digits[14] != dig + '0') {
2dcfad8a3ed0 make-imeisv utility written
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53 fprintf(stderr, "error: given IMEI fails Luhn check\n");
2dcfad8a3ed0 make-imeisv utility written
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54 exit(1);
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55 }
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56 }
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57
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58 main(argc, argv)
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59 char **argv;
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60 {
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61 char imeibuf[15];
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62
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63 if (argc != 3) {
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64 fprintf(stderr, "usage: %s IMEI SV\n", argv[0]);
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65 exit(1);
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66 }
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67 parse_imei_arg(argv[1], imeibuf);
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68 check_luhn(imeibuf);
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69 if (!isdigit(argv[2][0]) || !isdigit(argv[2][1]) || argv[2][2]) {
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70 fprintf(stderr,
2dcfad8a3ed0 make-imeisv utility written
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71 "error: SV argument must have 2 decimal digits\n");
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72 exit(1);
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73 }
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Mychaela Falconia <falcon@freecalypso.org>
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74 printf("%.8s-%.6s-%s\n", imeibuf, imeibuf + 8, argv[2]);
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75 exit(0);
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76 }