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sysadm |
1.1 |
/*
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* Copyright (C) 1998 Mark Baysinger (mbaysing@ucsd.edu)
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* Copyright (C) 1998,1999 Ross Combs (rocombs@cs.nmsu.edu)
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* Copyright (C) 2004 Donny Redmond (dredmond@linuxmail.org)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "common/setup_before.h"
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#include <stdio.h>
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#ifdef HAVE_STDDEF_H
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# include <stddef.h>
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#else
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# ifndef NULL
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# define NULL ((void *)0)
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# endif
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#endif
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#include <string.h>
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#include "common/packet.h"
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#include "common/hexdump.h"
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#include "common/eventlog.h"
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#include "common/setup_after.h"
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extern void hexdump(FILE * stream, void const * data, unsigned int len)
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{
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unsigned int i;
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char dst[100];
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unsigned char * datac;
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if (!data) {
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eventlog(eventlog_level_error, __FUNCTION__, "got NULL data");
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return;
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}
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if (!stream) {
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eventlog(eventlog_level_error, __FUNCTION__, "got NULL stream");
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return;
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}
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for (i = 0, datac = (char*)data ; i < len; i += 16, datac += 16)
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{
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hexdump_string(datac, (len - i < 16) ? (len - i) : 16, dst, i);
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fprintf(stream, "%s\n", dst);
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fflush(stream);
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}
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}
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extern void hexdump_string(unsigned char * data, unsigned int datalen, char * dst, unsigned int counter)
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{
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unsigned int c;
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int tlen = 0;
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unsigned char *datatmp;
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datatmp = data;
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tlen += sprintf((dst+tlen), "%04X: ", counter);
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for (c=0; c<8; c++) /* left half of hex dump */
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if (c<datalen)
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tlen += sprintf((dst+tlen), "%02X ", *(datatmp++));
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else
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tlen += sprintf((dst+tlen), " "); /* pad if short line */
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tlen += sprintf((dst+tlen)," ");
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for (c=8; c<16; c++) /* right half of hex dump */
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if (c<datalen)
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tlen += sprintf((dst+tlen), "%02X ", *(datatmp++));
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else
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tlen += sprintf((dst+tlen)," "); /* pad if short line */
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tlen += sprintf((dst+tlen)," ");
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for (c=0, datatmp = data; c<16; c++, datatmp++) /* ASCII dump */
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if (c<datalen) {
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if (*datatmp >=32 && *datatmp<127)
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tlen += sprintf((dst+tlen), "%c", *datatmp);
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else
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tlen += sprintf((dst+tlen), "."); /* put this for non-printables */
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}
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}
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