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/*-
* Copyright (c) 2012 Alistair Crooks <agc@NetBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#ifndef isprint
#define isprint(x) ((x) >= ' ' && (x) <= '~')
#endif
#define HEXDUMP_LINELEN 16
#ifndef PRIsize
#define PRIsize "z"
#endif
/* show hexadecimal/ascii dump */
static ssize_t
hexdump(const char *in, const size_t len, void *outvp, size_t size)
{
size_t i;
char line[HEXDUMP_LINELEN + 1];
char *out = (char *)outvp;
int o;
for (i = 0, o = 0 ; i < len ; i++) {
if (i % HEXDUMP_LINELEN == 0) {
o += snprintf(&out[o], size - o,
"%.5" PRIsize "u | ", i);
}
o += snprintf(&out[o], size - o, "%.02x ", (uint8_t)in[i]);
line[i % HEXDUMP_LINELEN] =
(isprint((uint8_t)in[i])) ? in[i] : '.';
if (i % HEXDUMP_LINELEN == HEXDUMP_LINELEN - 1) {
line[HEXDUMP_LINELEN] = 0x0;
o += snprintf(&out[o], size - o, " | %s\n", line);
}
}
if (i % HEXDUMP_LINELEN != 0) {
for ( ; i % HEXDUMP_LINELEN != 0 ; i++) {
o += snprintf(&out[o], size - o, " ");
line[i % HEXDUMP_LINELEN] = ' ';
}
line[HEXDUMP_LINELEN] = 0x0;
o += snprintf(&out[o], size - o, " | %s\n", line);
}
return (ssize_t)o;
}
void dumpmem(void */*p*/, size_t /*size*/);
/* just dump an area of memory to stdout */
void
dumpmem(void *vp, size_t size)
{
ssize_t cc;
uint8_t *p = (uint8_t *)vp;
char *buf;
buf = calloc(1, size * 5);
cc = hexdump((const char *)p, size, buf, size * 5);
fprintf(stdout, "%.*s\n", (int)cc, buf);
free(buf);
}
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