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102 lines
2.6 KiB
C
102 lines
2.6 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2005 Poul-Henning Kamp
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <namespace.h>
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#include <stdio.h>
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#include <wchar.h>
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#include <stdint.h>
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#include <assert.h>
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#include <sys/time.h>
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#include "printf.h"
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int
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__printf_arginfo_hexdump(const struct printf_info *pi, size_t n, int *argt)
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{
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assert(n >= 2);
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argt[0] = PA_POINTER;
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argt[1] = PA_INT;
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return (2);
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}
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int
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__printf_render_hexdump(struct __printf_io *io, const struct printf_info *pi, const void *const *arg)
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{
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unsigned char *p;
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int i;
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unsigned u, l, j, a;
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char buf[100], *q;
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int ret;
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if (pi->width > 0 && pi->width < 16)
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l = pi->width;
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else
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l = 16;
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p = *((unsigned char **)arg[0]);
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i = *((int *)arg[1]);
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if (i < 0)
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i = 0;
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u = i;
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ret = 0;
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a = 0;
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while (u > 0) {
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q = buf;
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if (pi->showsign)
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q += sprintf(q, " %04x", a);
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for (j = 0; j < l && j < u; j++)
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q += sprintf(q, " %02x", p[j]);
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if (pi->alt) {
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for (; j < l; j++)
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q += sprintf(q, " ");
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q += sprintf(q, " |");
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for (j = 0; j < l && j < u; j++) {
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if (p[j] < ' ' || p[j] > '~')
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*q++ = '.';
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else
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*q++ = p[j];
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}
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for (; j < l; j++)
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*q++ = ' ';
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*q++ = '|';
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}
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if (l < u)
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j = l;
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else
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j = u;
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p += j;
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u -= j;
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a += j;
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if (u > 0)
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*q++ = '\n';
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ret += __printf_puts(io, buf + 1, q - (buf + 1));
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__printf_flush(io);
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}
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return (ret);
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}
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