client.c


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#include <stdio.h>
#include <stddef.h>
#include <string.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip_icmp.h>
#include <arpa/inet.h>
#include <unistd.h>
#include "icmp_client.h"
#include "util.h"

int main(void) {
	int sock = icmp_client_open_socket();
	if (sock < 0) {
		perror("icmp_client_open_socket");
		return 1;
	}

	const char *ip_address = "127.0.0.1";
	// const char *ip_address = "192.168.43.220";
	// const char *ip_address = "198.211.118.67";  // tomsmeding.com

	if (icmp_client_send(sock, inet_addr(ip_address), 1234, "kaashandel", 10) < 0) {
		perror("icmp_client_send");
		return 1;
	}

	struct icmp_incoming reply = icmp_client_receive(sock);
	if (reply.data == NULL) {
		perror("icmp_client_receive");
		return 1;
	}

	printf("Received length: %zd   payload:\n", reply.length);
	xxd(reply.data, reply.length);
}