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annotate miscprog/cinitdump.c @ 382:4307b57229d3

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miscprog: tone-convert written, compiles
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 10 Nov 2021 00:04:12 +0000
parents e493fcff28ab
children
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268
e493fcff28ab cinitdump program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
e493fcff28ab cinitdump program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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2 * This program dumps the cinit section records from a firmware image
e493fcff28ab cinitdump program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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3 * sans symbols, given just the cinit start address and knowing the
e493fcff28ab cinitdump program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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4 * record structure.
e493fcff28ab cinitdump program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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5 */
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6
e493fcff28ab cinitdump program written, compiles
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7 #include <sys/types.h>
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8 #include <stdio.h>
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9 #include <stdlib.h>
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10
e493fcff28ab cinitdump program written, compiles
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11 FILE *inf;
e493fcff28ab cinitdump program written, compiles
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12 u_long offset;
e493fcff28ab cinitdump program written, compiles
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13
e493fcff28ab cinitdump program written, compiles
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14 u_long
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15 get_word()
e493fcff28ab cinitdump program written, compiles
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16 {
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Mychaela Falconia <falcon@freecalypso.org>
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17 u_char bytes[4];
e493fcff28ab cinitdump program written, compiles
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18 u_long word;
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19
e493fcff28ab cinitdump program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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20 fread(bytes, 1, 4, inf);
e493fcff28ab cinitdump program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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21 word = bytes[0] | (bytes[1] << 8) | (bytes[2] << 16) | (bytes[3] << 24);
e493fcff28ab cinitdump program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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22 printf("%8lx:\t%08lx\n", offset, word);
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Mychaela Falconia <falcon@freecalypso.org>
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23 offset += 4;
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Mychaela Falconia <falcon@freecalypso.org>
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24 return word;
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Mychaela Falconia <falcon@freecalypso.org>
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25 }
e493fcff28ab cinitdump program written, compiles
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26
e493fcff28ab cinitdump program written, compiles
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27 main(argc, argv)
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28 char **argv;
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29 {
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30 u_long len, count;
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31
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32 if (argc != 3) {
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33 fprintf(stderr, "usage: %s filename start-addr\n", argv[0]);
e493fcff28ab cinitdump program written, compiles
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34 exit(1);
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35 }
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Mychaela Falconia <falcon@freecalypso.org>
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36 inf = fopen(argv[1], "r");
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Mychaela Falconia <falcon@freecalypso.org>
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37 if (!inf) {
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Mychaela Falconia <falcon@freecalypso.org>
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38 perror(argv[1]);
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Mychaela Falconia <falcon@freecalypso.org>
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39 exit(1);
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Mychaela Falconia <falcon@freecalypso.org>
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40 }
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41 offset = strtoul(argv[2], 0, 0);
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42 fseek(inf, offset, SEEK_SET);
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43
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44 for (;;) {
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45 len = get_word();
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46 if (!len)
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Mychaela Falconia <falcon@freecalypso.org>
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47 break;
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48 len = (len + 3) & ~3;
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49 get_word(); /* bss address */
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Mychaela Falconia <falcon@freecalypso.org>
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50 for (count = 0; count < len; count += 4)
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Mychaela Falconia <falcon@freecalypso.org>
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51 get_word();
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Mychaela Falconia <falcon@freecalypso.org>
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52 putchar('\n');
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Mychaela Falconia <falcon@freecalypso.org>
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53 }
e493fcff28ab cinitdump program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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54 exit(0);
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55 }