1*ebfedea0SLionel Sambuc /*-
2*ebfedea0SLionel Sambuc * Copyright (c) 2012 Alistair Crooks <agc@NetBSD.org>
3*ebfedea0SLionel Sambuc * All rights reserved.
4*ebfedea0SLionel Sambuc *
5*ebfedea0SLionel Sambuc * Redistribution and use in source and binary forms, with or without
6*ebfedea0SLionel Sambuc * modification, are permitted provided that the following conditions
7*ebfedea0SLionel Sambuc * are met:
8*ebfedea0SLionel Sambuc * 1. Redistributions of source code must retain the above copyright
9*ebfedea0SLionel Sambuc * notice, this list of conditions and the following disclaimer.
10*ebfedea0SLionel Sambuc * 2. Redistributions in binary form must reproduce the above copyright
11*ebfedea0SLionel Sambuc * notice, this list of conditions and the following disclaimer in the
12*ebfedea0SLionel Sambuc * documentation and/or other materials provided with the distribution.
13*ebfedea0SLionel Sambuc *
14*ebfedea0SLionel Sambuc * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15*ebfedea0SLionel Sambuc * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16*ebfedea0SLionel Sambuc * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17*ebfedea0SLionel Sambuc * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18*ebfedea0SLionel Sambuc * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19*ebfedea0SLionel Sambuc * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20*ebfedea0SLionel Sambuc * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21*ebfedea0SLionel Sambuc * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22*ebfedea0SLionel Sambuc * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23*ebfedea0SLionel Sambuc * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24*ebfedea0SLionel Sambuc */
25*ebfedea0SLionel Sambuc #include <inttypes.h>
26*ebfedea0SLionel Sambuc #include <stdio.h>
27*ebfedea0SLionel Sambuc #include <stdlib.h>
28*ebfedea0SLionel Sambuc #include <string.h>
29*ebfedea0SLionel Sambuc #include <unistd.h>
30*ebfedea0SLionel Sambuc
31*ebfedea0SLionel Sambuc #ifndef isprint
32*ebfedea0SLionel Sambuc #define isprint(x) ((x) >= ' ' && (x) <= '~')
33*ebfedea0SLionel Sambuc #endif
34*ebfedea0SLionel Sambuc
35*ebfedea0SLionel Sambuc #define HEXDUMP_LINELEN 16
36*ebfedea0SLionel Sambuc
37*ebfedea0SLionel Sambuc #ifndef PRIsize
38*ebfedea0SLionel Sambuc #define PRIsize "z"
39*ebfedea0SLionel Sambuc #endif
40*ebfedea0SLionel Sambuc
41*ebfedea0SLionel Sambuc /* show hexadecimal/ascii dump */
42*ebfedea0SLionel Sambuc static ssize_t
hexdump(const char * in,const size_t len,void * outvp,size_t size)43*ebfedea0SLionel Sambuc hexdump(const char *in, const size_t len, void *outvp, size_t size)
44*ebfedea0SLionel Sambuc {
45*ebfedea0SLionel Sambuc size_t i;
46*ebfedea0SLionel Sambuc char line[HEXDUMP_LINELEN + 1];
47*ebfedea0SLionel Sambuc char *out = (char *)outvp;
48*ebfedea0SLionel Sambuc int o;
49*ebfedea0SLionel Sambuc
50*ebfedea0SLionel Sambuc for (i = 0, o = 0 ; i < len ; i++) {
51*ebfedea0SLionel Sambuc if (i % HEXDUMP_LINELEN == 0) {
52*ebfedea0SLionel Sambuc o += snprintf(&out[o], size - o,
53*ebfedea0SLionel Sambuc "%.5" PRIsize "u | ", i);
54*ebfedea0SLionel Sambuc }
55*ebfedea0SLionel Sambuc o += snprintf(&out[o], size - o, "%.02x ", (uint8_t)in[i]);
56*ebfedea0SLionel Sambuc line[i % HEXDUMP_LINELEN] =
57*ebfedea0SLionel Sambuc (isprint((uint8_t)in[i])) ? in[i] : '.';
58*ebfedea0SLionel Sambuc if (i % HEXDUMP_LINELEN == HEXDUMP_LINELEN - 1) {
59*ebfedea0SLionel Sambuc line[HEXDUMP_LINELEN] = 0x0;
60*ebfedea0SLionel Sambuc o += snprintf(&out[o], size - o, " | %s\n", line);
61*ebfedea0SLionel Sambuc }
62*ebfedea0SLionel Sambuc }
63*ebfedea0SLionel Sambuc if (i % HEXDUMP_LINELEN != 0) {
64*ebfedea0SLionel Sambuc for ( ; i % HEXDUMP_LINELEN != 0 ; i++) {
65*ebfedea0SLionel Sambuc o += snprintf(&out[o], size - o, " ");
66*ebfedea0SLionel Sambuc line[i % HEXDUMP_LINELEN] = ' ';
67*ebfedea0SLionel Sambuc }
68*ebfedea0SLionel Sambuc line[HEXDUMP_LINELEN] = 0x0;
69*ebfedea0SLionel Sambuc o += snprintf(&out[o], size - o, " | %s\n", line);
70*ebfedea0SLionel Sambuc }
71*ebfedea0SLionel Sambuc return (ssize_t)o;
72*ebfedea0SLionel Sambuc }
73*ebfedea0SLionel Sambuc
74*ebfedea0SLionel Sambuc void dumpmem(void */*p*/, size_t /*size*/);
75*ebfedea0SLionel Sambuc
76*ebfedea0SLionel Sambuc /* just dump an area of memory to stdout */
77*ebfedea0SLionel Sambuc void
dumpmem(void * vp,size_t size)78*ebfedea0SLionel Sambuc dumpmem(void *vp, size_t size)
79*ebfedea0SLionel Sambuc {
80*ebfedea0SLionel Sambuc ssize_t cc;
81*ebfedea0SLionel Sambuc uint8_t *p = (uint8_t *)vp;
82*ebfedea0SLionel Sambuc char *buf;
83*ebfedea0SLionel Sambuc
84*ebfedea0SLionel Sambuc buf = calloc(1, size * 5);
85*ebfedea0SLionel Sambuc cc = hexdump((const char *)p, size, buf, size * 5);
86*ebfedea0SLionel Sambuc fprintf(stdout, "%.*s\n", (int)cc, buf);
87*ebfedea0SLionel Sambuc free(buf);
88*ebfedea0SLionel Sambuc }
89