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: src/lib/libc/stdio/xprintf_hexdump.c,v 1.1 2005/12/16 18:56:38 phk Exp $ 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#include "xprintf_private.h" 37 38__private_extern__ int 39__printf_arginfo_hexdump(const struct printf_info *pi, size_t n, int *argt) 40{ 41 42 assert(n >= 2); 43 argt[0] = PA_POINTER; 44 argt[1] = PA_INT; 45 return (2); 46} 47 48__private_extern__ int 49__printf_render_hexdump(struct __printf_io *io, const struct printf_info *pi, const void *const *arg) 50{ 51 unsigned char *p; 52 unsigned u, l, j, a; 53 char buf[100], *q; 54 int ret; 55 56 if (pi->width > 0 && pi->width < 16) 57 l = pi->width; 58 else 59 l = 16; 60 p = *((unsigned char **)arg[0]); 61 u = *((unsigned *)arg[1]); 62 63 ret = 0; 64 a = 0; 65 while (u > 0) { 66 q = buf; 67 if (pi->showsign) 68 q += sprintf(q, " %04x", a); 69 for (j = 0; j < l && j < u; j++) 70 q += sprintf(q, " %02x", p[j]); 71 if (pi->alt) { 72 for (; j < l; j++) 73 q += sprintf(q, " "); 74 q += sprintf(q, " |"); 75 for (j = 0; j < l && j < u; j++) { 76 if (p[j] < ' ' || p[j] > '~') 77 *q++ = '.'; 78 else 79 *q++ = p[j]; 80 } 81 for (; j < l; j++) 82 *q++ = ' '; 83 *q++ = '|'; 84 } 85 if (l < u) 86 j = l; 87 else 88 j = u; 89 p += j; 90 u -= j; 91 a += j; 92 if (u > 0) 93 *q++ = '\n'; 94 ret += __printf_puts(io, buf + 1, q - (buf + 1)); 95 __printf_flush(io); 96 } 97 return (ret); 98} 99