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/*-
* Copyright (c) 1993-1994, 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 University of
* California, Berkeley and the Network Research 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.
*/
#if 0
#ifndef lint
static const char rcsid[] =
"@(#) $Header: /cvsroot/nsnam/ns-2/emulate/ether.cc,v 1.4 2000/02/08 23:35:12 salehi Exp $ (LBL)";
#endif
#endif
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <net/ethernet.h>
#include "config.h"
#include "ether.h"
char Ethernet::hex[] = "0123456789abcdef";
void
Ethernet::ether_print(const u_char *bp)
{
const struct ether_header *ep;
ep = (const struct ether_header *)bp;
printf("src: %s\n",
etheraddr_string(ep->ether_shost));
printf("dst: %s\n",
etheraddr_string(ep->ether_dhost));
printf("prot: %hx\n",
ntohs(ep->ether_type));
}
char *
Ethernet::etheraddr_string(const u_char *ep)
{
unsigned i, j;
register char *cp;
static char buf[sizeof("00:00:00:00:00:00")];
cp = buf;
if ((j = *ep >> 4) != 0)
*cp++ = hex[j];
*cp++ = hex[*ep++ & 0xf];
for (i = 5; (int)--i >= 0;) {
*cp++ = ':';
if ((j = *ep >> 4) != 0)
*cp++ = hex[j];
*cp++ = hex[*ep++ & 0xf];
}
*cp = '\0';
return(buf);
}
#include <net/if.h>
u_char *
Ethernet::nametoaddr(const char *devname)
{
static struct ifreq ifr;
int s;
memset(&ifr, 0, sizeof(ifr));
if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
fprintf(stderr, "Ethernet::nametoaddr-- failed socket\n");
return NULL;
}
strncpy(ifr.ifr_name, devname, sizeof(ifr.ifr_name));
if (ioctl(s, SIOCGIFADDR, (char *)&ifr) < 0) {
fprintf(stderr, "Ethernet::nametoaddr-- failed SIOCGIFADDR\n");
return NULL;
}
return ((u_char*) &ifr.ifr_data);
}
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