FreeCalypso > hg > freecalypso-tools

annotate tchtools/fc-fr2tch.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 8ddb16a37273
children
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5
7eaa3307e5df fc-fr2tch utility written, added under miscutil
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1 /*
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2 * This utility converts a GSM 06.10 speech recording from the format that is
7eaa3307e5df fc-fr2tch utility written, added under miscutil
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3 * commonly accepted as standard in the Unix/Linux world (libgsm format) into
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4 * hex strings of TCH bits to be fed to the GSM 05.03 channel encoder by way
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5 * of a TI Calypso GSM device, a FreeCalypso GSM firmware version with the
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6 * TCH rerouting feature, and fc-shell's tch play command.
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7 */
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8
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9 #include <sys/types.h>
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10 #include <stdio.h>
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11 #include <stdlib.h>
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12
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13 main(argc, argv)
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14 char **argv;
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15 {
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16 FILE *inf, *outf;
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17 u_char libgsm_bytes[33], tidsp_bytes[33];
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18 int cc, i, gotsome = 0;
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19
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20 if (argc != 3) {
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21 fprintf(stderr, "usage: %s infile outfile\n", argv[0]);
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22 exit(1);
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23 }
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24 inf = fopen(argv[1], "r");
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25 if (!inf) {
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26 perror(argv[1]);
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27 exit(1);
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28 }
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29 outf = fopen(argv[2], "w");
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30 if (!outf) {
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31 perror(argv[2]);
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32 exit(1);
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33 }
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34 for (;;) {
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35 cc = fread(libgsm_bytes, 1, 33, inf);
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36 if (cc < 33)
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37 break;
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38 if ((libgsm_bytes[0] & 0xF0) != 0xD0) {
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39 invalid: fprintf(stderr, "error: %s is not in libgsm format\n",
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40 argv[1]);
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41 exit(1);
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42 }
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43 gsm0610_libgsm_to_tidsp(libgsm_bytes, tidsp_bytes);
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44 for (i = 0; i < 33; i++)
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45 fprintf(outf, "%02X", tidsp_bytes[i]);
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46 putc('\n', outf);
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47 gotsome = 1;
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48 }
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49 fclose(outf);
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50 if (cc) {
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51 if (gotsome)
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52 fprintf(stderr,
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53 "warning: extra non-33 bytes at the end of %s\n",
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54 argv[1]);
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55 else
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56 goto invalid;
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57 }
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58 exit(0);
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59 }