rdlog.c

/*
 * librd - Rapid Development C library
 *
 * Copyright (c) 2012-2013, Magnus Edenhill
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met: 
 * 
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer. 
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution. 
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <stdarg.h>
#include <string.h>
#include <ctype.h>

#include "rd.h"
#include "rdthread.h"
#include "rdlog.h"



void rd_hexdump (FILE *fp, const char *name, const void *ptr, size_t len) {
	const char *p = (const char *)ptr;
	int of = 0;


	if (name)
		fprintf(fp, "%s hexdump (%zu bytes):\n", name, len);

	for (of = 0 ; of < len ; of += 16) {
		char hexen[16*3+1];
		char charen[16+1];
		int hof = 0;

		int cof = 0;
		int i;

		for (i = of ; i < of + 16 && i < len ; i++) {
			hof += sprintf(hexen+hof, "%02x ", p[i] & 0xff);
			cof += sprintf(charen+cof, "%c",
				       isprint((int)p[i]) ? p[i] : '.');
		}
		fprintf(fp, "%08x: %-48s %-16s\n",
			of, hexen, charen);
	}
}