/* Ethernet header conversion routines
 * Copyright 1991 Phil Karn, KA9Q
 */
#include "global.h"
#include "mbuf.h"
#include "enet.h"

/* Convert Ethernet header in host form to network mbuf */
struct mbuf *
htonether(ether,data)
struct ether *ether;
struct mbuf *data;
{
	struct mbuf *bp;
	register char *cp;

	if((bp = pushdown(data,ETHERLEN)) == NULLBUF)
		return NULLBUF;

	cp = bp->data;

	memcpy(cp,ether->dest,EADDR_LEN);
	cp += EADDR_LEN;
	memcpy(cp,ether->source,EADDR_LEN);
	cp += EADDR_LEN;
	put16(cp,ether->type);

	return bp;
}
/* Extract Ethernet header */
int
ntohether(ether,bpp)
struct ether *ether;
struct mbuf **bpp;
{
	pullup(bpp,ether->dest,EADDR_LEN);
	pullup(bpp,ether->source,EADDR_LEN);
	ether->type = pull16(bpp);
	return ETHERLEN;
}