using select from berkeley socket API to make a client/server with timeout

client.cpp

/*This is for a stackoverflow answear: 
http://pt.stackoverflow.com/questions/144150/como-implementar-timeout-no-recv-em-socket-h/164440#164440
the code was compiled with mingw g++ using codeblocks, in order to compile this code you must link it to the ws2_32.lib on windows
*/
#include <iostream>
#include <string>
#include <winsock2.h>

int main(){
    UINT fd;
    const unsigned short port = 80;
    const char host[] = {"127.0.0.1"};
    struct sockaddr_in server;

    struct fd_set m_fdset;
    struct timeval timeout = {10, 0};

    WSADATA wsaData;
    if(WSAStartup(MAKEWORD(2, 2), &wsaData) < 0){
        std::cout << "wsastartup error!!" << std::endl;
        return 0;
    }

    if((fd = socket(AF_INET, SOCK_STREAM, 0)) < 0){
        std::cout << "socket error!!" << std::endl;
        return 0;
    }

    server.sin_family = AF_INET;
    server.sin_addr.s_addr = inet_addr(host);
    server.sin_port = htons(port);
    memset(&(server.sin_zero), 0x00, sizeof(server.sin_zero));

    if(connect(fd, (struct sockaddr*)&server, sizeof(server)) < 0){
        std::cout << "connect error!!" << std::endl;
        return -1;
    }

    FD_ZERO(&m_fdset);
    FD_SET(fd, &m_fdset);
    int r = select(fd + 1, &m_fdset, NULL, NULL, &timeout);

    if(r == SOCKET_ERROR){
        std::cout << "select error!\n";
        return -1;
    }else{
        if(FD_ISSET(fd, &m_fdset)){
            int read;
            std::string buffer;

            buffer.resize(4096);
            if((read = recv(fd, (char*)buffer.data(), 4096, 0)) <= 0){
                std::cout << "recv error or connection finished!\n";
                return -1;
            }

            buffer.resize(read);
            std::cout << "read " << read << " bytes from server:\n";
            std::cout << buffer << std::endl;
        }else{
            std::cout << "TIMEOUT!" << std::endl;
        }
    }

    closesocket(fd);

    return 0;
}