| | 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 | } |
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