FreeCalypso > hg > freecalypso-tools

annotate tchtools/fc-vm2hex.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 5041bcb8140f
children
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1 /*
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2 * This utility converts old-fashioned (non-AMR) TCS211 voice memo files
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3 * read out of FFS into hex strings that can be analyzed by a human,
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4 * either directly or with the aid of gsmfr-dlcap-parse utility from
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5 * Themyscira Wireless GSM codec libraries & utilities package.
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6 */
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7
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8 #include <sys/types.h>
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9 #include <stdio.h>
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10 #include <stdlib.h>
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11
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12 char *infname;
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13 FILE *inf, *outf;
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14
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15 static unsigned
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16 get_word()
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17 {
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18 u_char b[2];
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19 int i, c;
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20
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21 for (i = 0; i < 2; i++) {
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22 c = getc(inf);
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23 if (c < 0) {
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24 fprintf(stderr, "error: premature EOF in %s\n",
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25 infname);
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26 exit(1);
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27 }
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28 b[i] = c;
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29 }
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30 return((b[1] << 8) | b[0]);
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31 }
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32
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33 convert_speech_sample()
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34 {
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35 u_char bytes[34];
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36 int i, dp;
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37 unsigned word;
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38
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39 dp = 0;
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40 for (i = 0; i < 17; i++) {
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41 word = get_word();
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42 bytes[dp++] = word >> 8;
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43 bytes[dp++] = word;
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44 }
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45 for (i = 0; i < 33; i++)
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46 fprintf(outf, "%02X", bytes[i]);
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47 }
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48
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49 main(argc, argv)
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50 char **argv;
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51 {
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52 unsigned first_word;
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53
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54 if (argc < 2 || argc > 3) {
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55 fprintf(stderr, "usage: %s infile [outfile]\n", argv[0]);
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56 exit(1);
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57 }
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58 infname = argv[1];
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59 inf = fopen(infname, "r");
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60 if (!inf) {
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61 perror(infname);
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62 exit(1);
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63 }
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64 if (argc > 2) {
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65 outf = fopen(argv[2], "w");
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66 if (!outf) {
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67 perror(argv[2]);
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68 exit(1);
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69 }
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70 } else
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71 outf = stdout;
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72
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73 for (;;) {
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74 first_word = get_word();
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75 if (first_word == 0xFBFF) /* SC_VM_END_MASK */
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76 break;
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77 fprintf(outf, "%04X", first_word);
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78 if (first_word & 0x8000) { /* B_VM_SPEECH */
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79 fprintf(outf, " %04X", get_word());
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80 fprintf(outf, " %04X", get_word());
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81 putc(' ', outf);
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82 convert_speech_sample();
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83 }
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84 putc('\n', outf);
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85 }
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86 exit(0);
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87 }