1/*-
2 * Copyright (c) 2005 Poul-Henning Kamp
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD$
27 */
28
29#include <namespace.h>
30#include <stdio.h>
31#include <wchar.h>
32#include <stdint.h>
33#include <assert.h>
34#include <sys/time.h>
35#include "printf.h"
36
37int
38__printf_arginfo_hexdump(const struct printf_info *pi, size_t n, int *argt)
39{
40
41	assert(n >= 2);
42	argt[0] = PA_POINTER;
43	argt[1] = PA_INT;
44	return (2);
45}
46
47int
48__printf_render_hexdump(struct __printf_io *io, const struct printf_info *pi, const void *const *arg)
49{
50	unsigned char *p;
51	unsigned u, l, j, a;
52	char buf[100], *q;
53	int ret;
54
55	if (pi->width > 0 && pi->width < 16)
56		l = pi->width;
57	else
58		l = 16;
59	p = *((unsigned char **)arg[0]);
60	u = *((unsigned *)arg[1]);
61
62	ret = 0;
63	a = 0;
64	while (u > 0) {
65		q = buf;
66		if (pi->showsign)
67			q += sprintf(q, " %04x", a);
68		for (j = 0; j < l && j < u; j++)
69			q += sprintf(q, " %02x", p[j]);
70		if (pi->alt) {
71			for (; j < l; j++)
72				q += sprintf(q, "   ");
73			q += sprintf(q, "  |");
74			for (j = 0; j < l && j < u; j++) {
75				if (p[j] < ' ' || p[j] > '~')
76					*q++ = '.';
77				else
78					*q++ = p[j];
79			}
80			for (; j < l; j++)
81				*q++ = ' ';
82			*q++ = '|';
83		}
84		if (l < u)
85			j = l;
86		else
87			j = u;
88		p += j;
89		u -= j;
90		a += j;
91		if (u > 0)
92			*q++ = '\n';
93		ret += __printf_puts(io, buf + 1, q - (buf + 1));
94		__printf_flush(io);
95	}
96	return (ret);
97}
98