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 __unused, 40 size_t n, int *argt) 41 { 42 43 assert(n >= 2); 44 argt[0] = PA_POINTER; 45 argt[1] = PA_INT; 46 return (2); 47 } 48 49 int 50 __printf_render_hexdump(struct __printf_io *io, const struct printf_info *pi, 51 const void *const *arg) 52 { 53 unsigned char *p; 54 unsigned u, l, j, a; 55 char buf[100], *q; 56 int ret; 57 58 if (pi->width > 0 && pi->width < 16) 59 l = pi->width; 60 else 61 l = 16; 62 p = *((unsigned char **)arg[0]); 63 u = *((unsigned *)arg[1]); 64 65 ret = 0; 66 a = 0; 67 while (u > 0) { 68 q = buf; 69 if (pi->showsign) 70 q += sprintf(q, " %04x", a); 71 for (j = 0; j < l && j < u; j++) 72 q += sprintf(q, " %02x", p[j]); 73 if (pi->alt) { 74 for (; j < l; j++) 75 q += sprintf(q, " "); 76 q += sprintf(q, " |"); 77 for (j = 0; j < l && j < u; j++) { 78 if (p[j] < ' ' || p[j] > '~') 79 *q++ = '.'; 80 else 81 *q++ = p[j]; 82 } 83 for (; j < l; j++) 84 *q++ = ' '; 85 *q++ = '|'; 86 } 87 if (l < u) 88 j = l; 89 else 90 j = u; 91 p += j; 92 u -= j; 93 a += j; 94 if (u > 0) 95 *q++ = '\n'; 96 ret += __printf_puts(io, buf + 1, q - (buf + 1)); 97 __printf_flush(io); 98 } 99 return (ret); 100 } 101