FreeCalypso > hg > freecalypso-tools

annotate uptools/libcoding/hexdump.c @ 921:74d284add54d

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fc-fsio: guard against bogus readdir results from the target If the FFS being operated on contains SE K2x0 extended filenames, readdir will return strings that are bad for printing. We need to guard against this possibility, and also against possible other bogosity that could be sent by other alien firmwares.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 31 Dec 2022 22:55:23 +0000
parents ead4ee22ef62
children
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ead4ee22ef62 uptools/libcoding: hex dump function implemented
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1 /*
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2 * This library module implements a simple hex dump facility.
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3 */
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4
ead4ee22ef62 uptools/libcoding: hex dump function implemented
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5 #include <sys/types.h>
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6 #include <stdio.h>
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7
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8 msg_bits_hexdump(dumpbuf, dumplen)
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9 u_char *dumpbuf;
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10 unsigned dumplen;
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11 {
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12 u_char *buf = dumpbuf;
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13 unsigned lineoff, linelen, i, c;
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14
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15 for (lineoff = 0; lineoff < dumplen; ) {
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16 linelen = dumplen - lineoff;
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17 if (linelen > 16)
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18 linelen = 16;
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19 printf("%02X: ", lineoff);
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20 for (i = 0; i < 16; i++) {
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21 if (i < linelen)
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22 printf("%02X ", buf[i]);
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23 else
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24 fputs(" ", stdout);
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25 if (i == 7 || i == 15)
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26 putchar(' ');
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27 }
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28 for (i = 0; i < linelen; i++) {
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29 c = buf[i];
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30 if (c < ' ' || c > '~')
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31 c = '.';
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32 putchar(c);
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33 }
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34 putchar('\n');
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35 buf += linelen;
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36 lineoff += linelen;
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37 }
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38 }