#include <stdio.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <string.h>s
#include <arpa/inet.h>

int main(){
int welcomeSocket, newSocket;
char buffer[1024];
struct sockaddr_in serverAddr;
struct sockaddr_storage serverStorage;
socklen_t addr_size;

welcomeSocket = socket(PF_INET, SOCK_STREAM, 0);
serverAddr.sin_family = AF_INET;
serverAddr.sin_port = htons(7891);
serverAddr.sin_addr.s_addr = inet_addr("127.0.0.1");
memset(serverAddr.sin_zero, '\0', sizeof serverAddr.sin_zero);

bind(welcomeSocket, (struct sockaddr *) &serverAddr, sizeof(serverAddr));

if(listen(welcomeSocket,5)==0)
	printf("Listening\n");
else
	printf("Error\n");

addr_size = sizeof serverStorage;
newSocket = accept(welcomeSocket, (struct sockaddr *) &serverStorage, &addr_size);

if(newSocket<0){
	printf("Accept error");
}
else{
	printf("Data received: %s",buffer);
}

	return 0;
}

//client
#include <stdio.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <string.h>
#include <arpa/inet.h>

int main(){
  int clientSocket, newSocket;
  char buffer[1024];
  struct sockaddr_in serverAddr;
  socklen_t addr_size;

  clientSocket = socket(PF_INET, SOCK_STREAM, 0);

  serverAddr.sin_family = AF_INET;
  serverAddr.sin_port = htons(7891);
  serverAddr.sin_addr.s_addr = inet_addr("127.0.0.1");
  memset(serverAddr.sin_zero, '\0', sizeof serverAddr.sin_zero);

  addr_size = sizeof serverAddr;
  connect(clientSocket, (struct sockaddr *) &serverAddr, addr_size);

  recv(clientSocket, buffer, 1024, 0);

 printf("Message\n");
	scanf("%s",buffer);
	send(newSocket,buffer,13,0);


  return 0;
}