Code-Bin #876

untitled C Code
Posted by: vanquish | October 5, 2010 @ 11:20am

C Code

#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>

/* the port users will be connecting to */
#define MYPORT 3440
/* how many pending connections queue will hold */
#define BACKLOG 10

int createConnectedSocket(char* local_ip, int local_port, char* remote_ip, int remote_port);

int main(int argc, char *argv[])
{
/* listen on sock_fd */
int sockfd, new_fd;
/* my address information, address where I run this program */
struct sockaddr_in local_addr;
/* remote address information */
struct sockaddr_in remote_addr;
int sin_size;

int testSocket = createConnectedSocket(argv[1], argv[2], argv[3], argv[4]);

sleep(30000);

close(testSocket);
return 0;
}

int createConnectedSocket(char* local_ip, int local_port, char* remote_ip, int remote_port) {

int tempSocket = socket(AF_INET, SOCK_DGRAM, 0);
	if (tempSocket < 0)
		return tempSocket;

// Create local socket
	struct sockaddr_in localsocket;
	memset(&localsocket, 0, sizeof(localsocket));
	localsocket.sin_family = AF_INET;
	localsocket.sin_addr.s_addr = local_ip;
	localsocket.sin_port = htons(local_port);

if (bind(tempSocket, (struct sockaddr *) &localsocket, sizeof(localsocket)))
		return -1;

// Create static remote connection
	struct sockaddr_in remotesocket;
	memset(&remotesocket, 0, sizeof(remotesocket));
	remotesocket.sin_family = AF_INET;
	remotesocket.sin_addr.s_addr = inet_addr(remote_ip);
	remotesocket.sin_port = htons(remote_port);
	if (connect(tempSocket, (struct sockaddr *) &remotesocket, sizeof(remotesocket)) < 0)
		return -1;

return tempSocket;
}

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