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annotate uptools/libcoding/hexdump.c @ 337:560af437a429

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sms-pdu-decode main program written, compiles
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 04 Feb 2018 03:32:24 +0000
parents ead4ee22ef62
children
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336
ead4ee22ef62 uptools/libcoding: hex dump function implemented
Mychaela Falconia <falcon@freecalypso.org>
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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
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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 }