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/* ulog_test, Version $Revision$
*
* small testing program for libipulog, part of the netfilter ULOG target
* for the linux 2.4 netfilter subsystem.
*
* (C) 2000 by Harald Welte <laforge@sunbeam.franken.de>
*
* this code is released under the terms of GNU GPL
*
* $Id$
*/
#include <stdio.h>
#include <stdlib.h>
#include <libipulog/libipulog.h>
#define MYBUFSIZ 2048
/* prints some logging about a single packet */
void handle_packet(ulog_packet_msg_t *pkt)
{
unsigned char *p;
int i;
printf("Hook=%u Mark=%u len=%d ", pkt->hook, pkt->mark, pkt->data_len);
if (strlen(pkt->prefix))
printf("Prefix=%s ", pkt->prefix);
if (pkt->mac_len)
{
printf("mac=");
p = pkt->mac;
for (i = 0; i < pkt->mac_len; i++, p++)
printf("%02x%c", *p, i==pkt->mac_len-1 ? ' ':':');
}
printf("\n");
}
main()
{
struct ipulog_handle *h;
unsigned char* buf;
size_t len;
ulog_packet_msg_t *upkt;
/* allocate a receive buffer */
buf = (unsigned char *) malloc(MYBUFSIZ);
/* create ipulog handle */
h = ipulog_create_handle(ipulog_group2gmask(32));
if (!h)
{
/* if some error occurrs, print it to stderr */
ipulog_perror(NULL);
exit(1);
}
/* endless loop receiving packets and handling them over to
* handle_packet */
while(1)
{
len = ipulog_read(h, buf, BUFSIZ, 1);
upkt = ipulog_get_packet(buf);
printf("got %d bytes\n", len);
handle_packet(upkt);
}
/* just to give it a cleaner look */
ipulog_destroy_handle(h);
}
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