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/* David Leonard, 2002. Public domain. */
/* $Id: loop.c 1172 2006-11-11 13:32:14Z d $ */
#if HAVE_CONFIG_H
# include "config.h"
#endif
#if STDC_HEADERS
# include <stdio.h>
# include <string.h>
#endif
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif
#if HAVE_ARPA_INET_H
# include <arpa/inet.h>
#endif
#include "compat.h"
#include "tag.h"
#include "flow.h"
/*
* Used when the device's datalink type is DLT_LOOP (loopback).
* XXX Plenty more protocols could be handled here...
*/
const char *
loop_tag(const char *p, const char *end)
{
u_int32_t af;
static char tag[TAGLEN];
memcpy(&af, p, sizeof af);
p += sizeof af;
switch (ntohl(af)) {
case AF_INET:
return ip_tag(p, end);
#if HAVE_NETINET_IP6_H
case AF_INET6:
return ip6_tag(p, end);
#endif
default:
snprintf(tag, sizeof tag, "loop af 0x%04x", af);
return tag;
}
}
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