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#include <stdio.h>
#include <sys/types.h>
#include <linux/ipx.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <errno.h>
struct rip_data {
unsigned long rip_net;
unsigned short rip_hops __attribute__ ((packed));
unsigned short rip_ticks __attribute__ ((packed));
};
int
main(int argc, char **argv)
{
struct sockaddr_ipx sipx;
int result;
int s;
char msg[1024];
int len;
char *bptr;
struct rip_data *rp;
s = socket(AF_IPX, SOCK_DGRAM, AF_IPX);
if (s < 0) {
perror("IPX: socket: ");
exit(-1);
}
sipx.sipx_family = AF_IPX;
sipx.sipx_network = 0;
sipx.sipx_port = htons(0x453);
sipx.sipx_type = 17;
result = bind(s, (struct sockaddr *)&sipx, sizeof(sipx));
if (result < 0) {
perror("IPX: bind: ");
exit(-1);
}
while (1) {
len = sizeof(sipx);
result = recvfrom(s, msg, sizeof(msg), 0,
(struct sockaddr *)&sipx, &len);
if (result < 0) {
perror("IPX: recvfrom");
exit(-1);
}
bptr = msg;
result -= 2;
printf("RIP packet from: %08lX:%02X%02X%02X%02X%02X%02X\n",
htonl(sipx.sipx_network),
sipx.sipx_node[0], sipx.sipx_node[1],
sipx.sipx_node[2], sipx.sipx_node[3],
sipx.sipx_node[6], sipx.sipx_node[5]);
bptr += 2;
rp = (struct rip_data *) bptr;
while (result >= sizeof(struct rip_data)) {
printf("\tNET: %08lX HOPS: %d\n", ntohl(rp->rip_net),
ntohs(rp->rip_hops));
result -= sizeof(struct rip_data);
rp++;
}
}
}
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