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 "un-namespace.h" 36 #include "printf.h" 37 38 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 int 49 __printf_render_hexdump(struct __printf_io *io, const struct printf_info *pi, 50 const void *const *arg) 51 { 52 unsigned char *p; 53 unsigned u, l, j, a; 54 char buf[100], *q; 55 int ret; 56 57 if (pi->width > 0 && pi->width < 16) 58 l = pi->width; 59 else 60 l = 16; 61 p = *((unsigned char **)arg[0]); 62 u = *((unsigned *)arg[1]); 63 64 ret = 0; 65 a = 0; 66 while (u > 0) { 67 q = buf; 68 if (pi->showsign) 69 q += sprintf(q, " %04x", a); 70 for (j = 0; j < l && j < u; j++) 71 q += sprintf(q, " %02x", p[j]); 72 if (pi->alt) { 73 for (; j < l; j++) 74 q += sprintf(q, " "); 75 q += sprintf(q, " |"); 76 for (j = 0; j < l && j < u; j++) { 77 if (p[j] < ' ' || p[j] > '~') 78 *q++ = '.'; 79 else 80 *q++ = p[j]; 81 } 82 for (; j < l; j++) 83 *q++ = ' '; 84 *q++ = '|'; 85 } 86 if (l < u) 87 j = l; 88 else 89 j = u; 90 p += j; 91 u -= j; 92 a += j; 93 if (u > 0) 94 *q++ = '\n'; 95 ret += __printf_puts(io, buf + 1, q - (buf + 1)); 96 __printf_flush(io); 97 } 98 return (ret); 99 } 100