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 37 int 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 47 int 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