/*	$Id: print.c,v 1.4 2004/04/16 04:30:09 deraadt Exp $	 */

/* Turn data structures into printable text. */

/*
 * Copyright (c) 1995, 1996, 1997, 1998 The Internet Software Consortium.
 * 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.
 * 3. Neither the name of The Internet Software Consortium nor the names
 *    of its contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM 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 INTERNET SOFTWARE CONSORTIUM 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.
 *
 * This software has been written for the Internet Software Consortium
 * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie
 * Enterprises.  To learn more about the Internet Software Consortium,
 * see ``http://www.vix.com/isc''.  To learn more about Vixie
 * Enterprises, see ``http://www.vix.com''.
 */

#include "dhcpd.h"

char *
print_hw_addr(int htype, int hlen, unsigned char *data)
{
	static char	habuf[49];
	char	*s;
	int	i;

	if (htype == 0 || hlen == 0) {
		goto bad;
	} else {
		int	slen = sizeof(habuf);
		s = habuf;
		for (i = 0; i < hlen; i++) {
			int	j;
			j = snprintf(s, slen, "%02x", data[i]);
			if (j <= 0)
				goto bad;

			s += strlen(s);
			slen -= (strlen(s) + 1);
			*s++ = ':';
		}
		*--s = 0;
	}
	return habuf;
bad:
	strlcpy(habuf, "<null>", sizeof habuf);
	return habuf;

}

void 
print_lease(struct lease *lease)
{
	struct tm	*t;
	char	tbuf[32];

	debug("      Lease %s", piaddr(lease->ip_addr));

	t = gmtime(&lease->starts);
	strftime(tbuf, sizeof tbuf, "%Y/%m/%d %H:%M:%S", t);
	debug("        start %s", tbuf);

	t = gmtime(&lease->ends);
	strftime(tbuf, sizeof tbuf, "%Y/%m/%d %H:%M:%S", t);
	debug("        end %s", tbuf);

	t = gmtime(&lease->timestamp);
	strftime(tbuf, sizeof tbuf, "%Y/%m/%d %H:%M:%S", t);
	debug("        stamp %s", tbuf);

	debug("        hardware addr = %s",
	    print_hw_addr(lease->hardware_addr.htype,
	    lease->hardware_addr.hlen, lease->hardware_addr.haddr));
	debug("        host %s  ", lease->host ? lease->host->name : "<none>");
}

void 
dump_packet(struct packet *tp)
{
	struct dhcp_packet *tdp = tp->raw;

	debug("packet length %d", tp->packet_length);
	debug("op = %d  htype = %d  hlen = %d  hops = %d", tdp->op, tdp->htype,
	    tdp->hlen, tdp->hops);
	debug("xid = %x  secs = %d  flags = %x", tdp->xid, tdp->secs,
	    tdp->flags);
	debug("ciaddr = %s", inet_ntoa(tdp->ciaddr));
	debug("yiaddr = %s", inet_ntoa(tdp->yiaddr));
	debug("siaddr = %s", inet_ntoa(tdp->siaddr));
	debug("giaddr = %s", inet_ntoa(tdp->giaddr));
	debug("chaddr = %02x:%02x:%02x:%02x:%02x:%02x",
    	    ((unsigned char *)(tdp->chaddr))[0],
	    ((unsigned char *)(tdp->chaddr))[1],
	    ((unsigned char *)(tdp->chaddr))[2],
	    ((unsigned char *)(tdp->chaddr))[3],
	    ((unsigned char *)(tdp->chaddr))[4],
	    ((unsigned char *)(tdp->chaddr))[5]);
	debug("filename = %s", tdp->file);
	debug("server_name = %s", tdp->sname);
	if (tp->options_valid) {
		int	i;

		for (i = 0; i < 256; i++) {
			if (tp->options[i].data)
				debug("  %s = %s", dhcp_options[i].name,
				    pretty_print_option(i, tp->options[i].data,
				    tp->options[i].len, 1, 1));
		}
	}
	debug("%s", "");
}

void 
dump_raw(unsigned char *buf, int len)
{
	char	lbuf[80];
	int	i, j, llen = sizeof(lbuf), lbix = 0;

	lbuf[0] = 0;

	for (i = 0; i < len; i++) {
		if ((i & 15) == 0) {
			if (lbix)
				note(lbuf);
			j = snprintf(lbuf, llen, "%03x:", i);
			if (j >= llen)
				return;
			lbix += j;
			llen -= j;
		} else if ((i & 7) == 0) {
			lbuf[lbix++] = ' ';
			len--;
		}
		j = snprintf(&lbuf[lbix], llen, " %02x", buf[i]);
		if (j >= llen)
			return;
		lbix += j;
		llen -= j;
	}
	note(lbuf);
}

void 
hash_dump(struct hash_table *table)
{
	struct hash_bucket *bp;
	int	i;

	if (!table)
		return;

	for (i = 0; i < table->hash_count; i++) {
		if (!table->buckets[i])
			continue;
		note("hash bucket %d:", i);
		for (bp = table->buckets[i]; bp; bp = bp->next) {
			if (bp->len)
				dump_raw(bp->name, bp->len);
			else
				note((char *) bp->name);
		}
	}
}