1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2005 Poul-Henning Kamp 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 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 int i; 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 i = *((int *)arg[1]); 62 if (i < 0) 63 i = 0; 64 u = i; 65 66 ret = 0; 67 a = 0; 68 while (u > 0) { 69 q = buf; 70 if (pi->showsign) 71 q += sprintf(q, " %04x", a); 72 for (j = 0; j < l && j < u; j++) 73 q += sprintf(q, " %02x", p[j]); 74 if (pi->alt) { 75 for (; j < l; j++) 76 q += sprintf(q, " "); 77 q += sprintf(q, " |"); 78 for (j = 0; j < l && j < u; j++) { 79 if (p[j] < ' ' || p[j] > '~') 80 *q++ = '.'; 81 else 82 *q++ = p[j]; 83 } 84 for (; j < l; j++) 85 *q++ = ' '; 86 *q++ = '|'; 87 } 88 if (l < u) 89 j = l; 90 else 91 j = u; 92 p += j; 93 u -= j; 94 a += j; 95 if (u > 0) 96 *q++ = '\n'; 97 ret += __printf_puts(io, buf + 1, q - (buf + 1)); 98 __printf_flush(io); 99 } 100 return (ret); 101 } 102