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/*
* Hexadecimal dump for displaying ioctl data structures.
*
* Copyright (c) 2007 by Jefferson Ogata
*/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; see the file COPYING. If not, write to the Free Software
* Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <sys/types.h>
void dumpbytes (FILE *f, void *z, size_t len, void *addr, char *prefix)
{
off_t k;
int j = 15;
char abuf[20];
unsigned char *buf = z;
for (k = 0; k < len; ++k)
{
unsigned char c = buf[k];
j = k % 16;
if (j == 0)
{
if (prefix)
fprintf (f, " %s+%04lx:\t", prefix, k);
else
fprintf (f, " %08lx:\t", ((unsigned long) addr) + k);
memset (abuf, ' ', sizeof abuf - 1);
abuf[sizeof abuf - 1] = '\0';
}
else
{
if (j % 4 == 0)
putc (' ', f);
if (j % 8 == 0)
putc (' ', f);
}
fprintf (f, "%02x", c);
abuf[j + j / 4] = isprint (c) ? c : '.';
if (j == 15)
{
fprintf (f, " %s\n", abuf);
}
}
if (j != 15)
{
for ( ; j < 15; ++j)
{
if (j % 4 == 0)
putc (' ', f);
if (j % 8 == 0)
putc (' ', f);
putc (' ', f);
putc (' ', f);
}
fprintf (f, " %s\n", abuf);
}
}
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