missing/dlnames.c

/*
 * Copyright (c) 1993, 1994, 1995, 1996, 1997, 1998
 *	The Regents of the University of California.  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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the Computer Systems
 *	Engineering Group at Lawrence Berkeley Laboratory.
 * 4. Neither the name of the University nor of the Laboratory may be used
 *    to endorse or promote products derived from this software without
 *    specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
 */

#ifndef lint
static const char rcsid[] =
    "@(#) $Header: /tcpdump/master/tcpdump/missing/dlnames.c,v 1.1 2002-12-19 09:27:58 guy Exp $ (LBL)";
#endif

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <tcpdump-stdinc.h>

#include <pcap.h>
#include <string.h>

#include "pcap-missing.h"

struct dlt_choice {
	const char *name;
	int	dlt;
};

#define DLT_CHOICE(code) { #code, code }
#define DLT_CHOICE_SENTINEL { NULL, 0 }

static struct dlt_choice dlt_choices[] = {
	DLT_CHOICE(DLT_ARCNET),
	DLT_CHOICE(DLT_EN10MB),
	DLT_CHOICE(DLT_SLIP),
	DLT_CHOICE(DLT_SLIP_BSDOS),
	DLT_CHOICE(DLT_NULL),
#ifdef DLT_LOOP
	DLT_CHOICE(DLT_LOOP),
#endif
	DLT_CHOICE(DLT_PPP),
#ifdef DLT_C_HDLC
	DLT_CHOICE(DLT_C_HDLC),
#endif
#ifdef DLT_PPP_SERIAL
	DLT_CHOICE(DLT_PPP_SERIAL),
#endif
#ifdef DLT_PPP_ETHER
	DLT_CHOICE(DLT_PPP_ETHER),
#endif
	DLT_CHOICE(DLT_PPP_BSDOS),
	DLT_CHOICE(DLT_FDDI),
	DLT_CHOICE(DLT_IEEE802),
#ifdef DLT_IEEE802_11
	DLT_CHOICE(DLT_IEEE802_11),
#endif
#ifdef DLT_PRISM_HEADER
	DLT_CHOICE(DLT_PRISM_HEADER),
#endif
#ifdef DLT_IEEE802_11_RADIO
	DLT_CHOICE(DLT_IEEE802_11_RADIO),
#endif
	DLT_CHOICE(DLT_ATM_RFC1483),
#ifdef DLT_ATM_CLIP
	DLT_CHOICE(DLT_ATM_CLIP),
#endif
#ifdef DLT_SUNATM
	DLT_CHOICE(DLT_SUNATM),
#endif
	DLT_CHOICE(DLT_RAW),
#ifdef DLT_LINUX_SLL
	DLT_CHOICE(DLT_LINUX_SLL),
#endif
#ifdef DLT_LTALK
	DLT_CHOICE(DLT_LTALK),
#endif
#ifdef DLT_IP_OVER_FC
	DLT_CHOICE(DLT_IP_OVER_FC),
#endif
#ifdef DLT_FRELAY
	DLT_CHOICE(DLT_FRELAY),
#endif

#ifdef DLT_LANE8023
	DLT_CHOICE(DLT_LANE8023),
#endif
#ifdef DLT_CIP
	DLT_CHOICE(DLT_CIP),
#endif
#ifdef DLT_HDLC
	DLT_CHOICE(DLT_HDLC),
#endif
#ifdef DLT_PFLOG
	DLT_CHOICE(DLT_PFLOG),
#endif
	DLT_CHOICE_SENTINEL
};

int
pcap_datalink_name_to_val(const char *name)
{
	int i;

	for (i = 0; dlt_choices[i].name != NULL; i++) {
		if (strcasecmp(dlt_choices[i].name + sizeof("DLT_") - 1,
		    name) == 0)
			return (dlt_choices[i].dlt);
	}
	return (-1);
}

const char *
pcap_datalink_val_to_name(int dlt)
{
	int i;

	for (i = 0; dlt_choices[i].name != NULL; i++) {
		if (dlt_choices[i].dlt == dlt)
			return (dlt_choices[i].name + sizeof("DLT_") - 1);
	}
	return (NULL);
}