FreeCalypso > hg > freecalypso-reveng

annotate miscprog/ftmdump.c @ 379:a760a5eeed65

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compal/audio/omr-guide: another avenue of investigation
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 10 Oct 2021 19:53:35 +0000
parents 9f2e0c34fe33
children
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221
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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2 * This program parses the record structure in Compal's FTM sector (or at least
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
Mychaela Falconia <falcon@freecalypso.org>
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3 * that's what I *think* it is called) and dumps each record in hex for further
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
Mychaela Falconia <falcon@freecalypso.org>
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4 * human analysis.
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
Mychaela Falconia <falcon@freecalypso.org>
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5 */
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
Mychaela Falconia <falcon@freecalypso.org>
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6
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
Mychaela Falconia <falcon@freecalypso.org>
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7 #include <sys/types.h>
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
Mychaela Falconia <falcon@freecalypso.org>
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8 #include <stdio.h>
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
Mychaela Falconia <falcon@freecalypso.org>
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9 #include <stdlib.h>
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
Mychaela Falconia <falcon@freecalypso.org>
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10 #include <string.h>
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
Mychaela Falconia <falcon@freecalypso.org>
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11 #include <strings.h>
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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12
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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13 char *infname;
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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14 FILE *inf;
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
Mychaela Falconia <falcon@freecalypso.org>
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15 u_char header[8];
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
Mychaela Falconia <falcon@freecalypso.org>
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16 u_char endmarker[8] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
Mychaela Falconia <falcon@freecalypso.org>
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17 unsigned hdr_words[4];
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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18
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
Mychaela Falconia <falcon@freecalypso.org>
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19 main(argc, argv)
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
Mychaela Falconia <falcon@freecalypso.org>
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20 char **argv;
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
Mychaela Falconia <falcon@freecalypso.org>
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21 {
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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22 if (argc < 2 || argc > 3) {
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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23 fprintf(stderr, "usage: %s binfile [offset]\n", argv[0]);
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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24 exit(1);
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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25 }
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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26 infname = argv[1];
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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27 inf = fopen(infname, "r");
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
Mychaela Falconia <falcon@freecalypso.org>
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28 if (!inf) {
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
Mychaela Falconia <falcon@freecalypso.org>
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29 perror(infname);
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
Mychaela Falconia <falcon@freecalypso.org>
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30 exit(1);
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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31 }
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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32 if (argc == 3)
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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33 fseek(inf, strtoul(argv[2], 0, 0), SEEK_SET);
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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34 for (;;) {
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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35 fread(header, 1, 8, inf);
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
Mychaela Falconia <falcon@freecalypso.org>
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36 if (!bcmp(header, endmarker, 8))
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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37 break;
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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38 process_record();
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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39 }
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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40 exit(0);
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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41 }
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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42
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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43 process_record()
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
Mychaela Falconia <falcon@freecalypso.org>
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44 {
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
Mychaela Falconia <falcon@freecalypso.org>
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45 u_char readbuf[16];
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
Mychaela Falconia <falcon@freecalypso.org>
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46 int pos, chunk, i, c;
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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47
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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48 for (i = 0; i < 4; i++)
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
Mychaela Falconia <falcon@freecalypso.org>
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49 hdr_words[i] = header[i*2] | (header[i*2+1] << 8);
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
Mychaela Falconia <falcon@freecalypso.org>
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50 printf("%04X %04X %04X %04X:\n\n", hdr_words[0], hdr_words[1],
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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51 hdr_words[2], hdr_words[3]);
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
Mychaela Falconia <falcon@freecalypso.org>
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52 for (pos = 0; pos < hdr_words[3]; pos += chunk) {
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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53 chunk = hdr_words[3] - pos;
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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54 if (chunk > 16)
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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55 chunk = 16;
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
Mychaela Falconia <falcon@freecalypso.org>
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56 fread(readbuf, 1, chunk, inf);
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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57 printf("%04X:", pos);
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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58 for (i = 0; i < 16; i++) {
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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59 if (i == 0 || i == 8)
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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60 putchar(' ');
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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61 if (i < chunk)
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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62 printf(" %02X", readbuf[i]);
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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63 else
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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64 fputs(" ", stdout);
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
Mychaela Falconia <falcon@freecalypso.org>
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65 }
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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66 fputs(" ", stdout);
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
Mychaela Falconia <falcon@freecalypso.org>
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67 for (i = 0; i < chunk; i++) {
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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68 c = readbuf[i];
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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69 if (c < ' ' || c > '~')
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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70 c = '.';
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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71 putchar(c);
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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72 }
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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73 putchar('\n');
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
Mychaela Falconia <falcon@freecalypso.org>
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74 }
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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75 putchar('\n');
9f2e0c34fe33 ftmdump (C1xx factory data reverse eng) tool written
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76 }