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TW-TS-005 reader: fix maximum line length bug TW-TS-005 section 4.1 states: The maximum allowed length of each line is 80 characters, not including the OS-specific newline encoding. The implementation of this line length limit in the TW-TS-005 hex file reader function in the present suite was wrong, such that lines of the full maximum length could not be read. Fix it. Note that this bug affects comment lines too, not just actual RTP payloads. Neither Annex A nor Annex B features an RTP payload format that goes to the maximum of 40 bytes, but if a comment line goes to the maximum allowed length of 80 characters not including the terminating newline, the bug will be triggered, necessitating the present fix.
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 25 Feb 2025 07:49:28 +0000
parents b8e095a9e360
children
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1 /*
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2 * This program reads an EFR *.cod file in ETSI test sequence format
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3 * and converts it into Themyscira gsmx format.
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4 */
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5
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6 #include <stdio.h>
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7 #include <stdint.h>
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8 #include <stdlib.h>
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9 #include <string.h>
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10 #include <strings.h>
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11 #include "../libgsmefr/gsm_efr.h"
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12 #include "etsi.h"
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13
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14 main(argc, argv)
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15 char **argv;
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16 {
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17 char *infname, *outfname;
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18 FILE *inf, *outf;
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19 int big_endian;
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20 unsigned frame_no;
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21 uint8_t input_bits[ETSI_ENC_NWORDS], frame[EFR_RTP_FRAME_LEN];
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22 int rc;
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23
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24 if (argc == 3 && argv[1][0] != '-') {
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25 big_endian = 0;
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26 infname = argv[1];
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27 outfname = argv[2];
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28 } else if (argc == 4 && !strcmp(argv[1], "-b")) {
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29 big_endian = 1;
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30 infname = argv[2];
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31 outfname = argv[3];
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32 } else {
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33 fprintf(stderr, "usage: %s [-b] input.cod output.gsmx\n",
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34 argv[0]);
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35 exit(1);
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36 }
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37 inf = fopen(infname, "r");
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38 if (!inf) {
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39 perror(infname);
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40 exit(1);
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41 }
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42 outf = fopen(outfname, "w");
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43 if (!outf) {
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44 perror(outfname);
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45 exit(1);
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46 }
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47 for (frame_no = 0; ; frame_no++) {
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48 rc = read_etsi_bits(inf, big_endian, input_bits,
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49 ETSI_ENC_NWORDS, infname);
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50 if (!rc)
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51 break;
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52 bits2frame(input_bits, frame, infname, frame_no);
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53 fwrite(frame, 1, sizeof frame, outf);
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54 }
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55 fclose(outf);
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56 exit(0);
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57 }