Anonymous

//-----------------------Includes
#include <winsock.h>
#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <signal.h>
#include <iostream>
//-----------------------


//-----------------------MISC
#pragma comment(lib, "wsock32")
using namespace std;
//-----------------------

#define SERVERPORT 4950 // the port users will be connecting to

int main(int argc, char *argv[])
{
		int sockfd;
		struct sockaddr_in their_addr; // connector's address information
		struct hostent *he;
		int numbytes;

		if (argc != 3) {
		fprintf(stderr,"usage: talker hostname message\n");
		exit(1);
		}
		if ((he=gethostbyname(argv[1])) == NULL) { // get the host info
		cout << "gethostbyname" << endl;
		exit(1);
		}
		if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) == -1) {
		perror("socket");
		exit(1);
		}
		their_addr.sin_family = AF_INET; // host byte order
		their_addr.sin_port = htons(SERVERPORT); // short, network byte order
		their_addr.sin_addr = *((struct in_addr *)he->h_addr);
		memset(their_addr.sin_zero, '\0', sizeof their_addr.sin_zero);
		if ((numbytes = sendto(sockfd, argv[2], strlen(argv[2]), 0,
		(struct sockaddr *)&their_addr, sizeof(struct sockaddr))) == -1) {
		perror("sendto");
		exit(1);
		}
		printf("sent %d bytes to %s\n", numbytes, inet_ntoa(their_addr.sin_addr));
		shutdown(sockfd, 2);
	cin.get();
}