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niknitrodeb@debian:~$ gcc '/var/run/vmblock-fuse/blockdir/2d4962c9/EchoServer.cpp' 
/tmp/ccLr8loR.o: In function `__static_initialization_and_destruction_0(int, int)':
EchoServer.cpp:(.text+0x11c): undefined reference to `std::ios_base::Init::Init()'
EchoServer.cpp:(.text+0x121): undefined reference to `std::ios_base::Init::~Init()'
/tmp/ccLr8loR.o:(.eh_frame+0x12): undefined reference to `__gxx_personality_v0'
collect2: ld returned 1 exit status

#include <iostream>
#include <sys/socket.h>	
#include <unistd.h>	
 
//Otros includes:
#include<netinet/in.h> 
#include<arpa/inet.h> 
#include<netdb.h>
#include<string.h>
 
using namespace std;
 
int listen_socket, cliente;
struct sockaddr_in clientinfo, server; 
int rtn;
char buffer[256];
const int PUERTO = 5050;
 
 
int main() {
 
	//SOCKET
	listen_socket = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);	
 
	server.sin_family = PF_INET;
	server.sin_addr.s_addr = INADDR_ANY;
	server.sin_port = htons(PUERTO);
	//BIND
	rtn = bind(listen_socket, (struct sockaddr*) (&server), (int) sizeof(server));
	//LISTEN
	listen(listen_socket, 1); //1 es el maximo de conexiones a la vez
	//ACCEPT
	cliente = accept(listen_socket, (struct sockaddr*) (&server), (socklen_t*) (sizeof(struct sockaddr_in)));// No estoy seguro de que sea socklen_t*. En las tansparencias pone int
	//READ
//	rtn = read(listen_socket, (*buffer), sizeof(buffer));
	rtn = recv(cliente, buffer, 256, 0);
	while (true) {
		//WRITE
//		rtn = write(listen_socket, (*buffer), sizeof(buffer));
		write(cliente, buffer, strlen(buffer));
		//READ
//		rtn = read(listen_socket, (*buffer), sizeof(buffer));
		rtn = recv(cliente, buffer, 256, 0);
//		printf("Bucle");
	}
 
	return 0;
}