void Server::ServLoop(){    // Begin loop    for(;;)    {        // Replace slave fd from master fd        slave = master;        // Check sockets for existing data to be read        if (select(fdmax+1, &slave, NULL, NULL, NULL) == -1){                // Check file descriptor and handle messages                Msges.ErrorMsg("Socket selecting failed.");                return;}        // Null all characters in your recv buffer        for(int p = 0; p < 256; p++) recvbuf = '\0';        // Check sockets for activity        for(i = 0; i <= fdmax; i++)        {            // Check to see if the file descriptor is in the set            if (FD_ISSET(i, &slave))            // If listener receives data from socket i...            if (i == listener)            {                // Accept client attempting to connect                Accept_client();            } else {                // Receive message or remove client from server                Recv_msg();            }        }    }}// Accept a client into the servervoid Server::Accept_client(){    // Copy remote_address bytes to addrlen    addrlen = sizeof(remote_address);    // Accept connecting client from listener socket    if ((newfd = accept(listener,                       (sockaddr *) &remote_address,                       &addrlen)) == -1)                      // Output error message if accept fails                      { Msges.ErrorMsg("Accept failed.");        } else {            // If client accept goes successful, add client socket to set            FD_SET(newfd, &master);            // Set max fd to newfd(max user)            if (newfd > fdmax) { fdmax = newfd; }                    // Set user ip address in vector                    tempuser.ip = inet_ntoa(remote_address.sin_addr);                    // Receive client username                    recv(newfd, recvbuf, 15, 0);                    // Set client username in vector                    tempuser.name = recvbuf;                    // Set client socket                    tempuser.id = newfd;                    // Add client to vector                    my_vec.push_back(tempuser);                    // Output user join message and socket connected on                    Msges.JoinMsg(tempuser.name, newfd);        }}// Receive a message from a clientvoid Server::Recv_msg(){    // Receive buffer on character array recvbuf    if ((bytes = recv(i, recvbuf, 512, 0)) <= 0)    {        // If no data received, remove client from userlist        Remove_client(); // There's no problem with this code    } else {        // If data was received, send to all users        Send_msg();    }}// Send a message to (a) client(s)void Server::Send_msg(){    // Loop through vector and send message to all users    for(int h = 0; h < my_vec.size(); h++)    {        // Set temporary socket as i        tempuser.id = i;        // Set tempuser2 as temporary vector for comparing        tempuser2 = my_vec.at(h);        // If sockets match, display username of vector position and message        if(tempuser2.id == tempuser.id)        {            strcpy(tempstr, tempuser2.name.c_str());            strcat(tempstr, ": "); strcat(tempstr, recvbuf);            strcpy(recvbuf, tempstr);        }    }    // Loop through all sockets    for(j = 0; j <= fdmax; j++)    {        // if socket j is in the set, send to that socket        if (FD_ISSET(j, &master))        {            // Send recvbuf to all users            send(j, recvbuf, sizeof(recvbuf), 0);        }    }}

int size;recv(i, recvbuf, size, 0);size = atoi (recvbuf);do{if ((bytes = recv(i, recvbuf, sizeof(recvbuf), 0)) <= 0){// If no data received, remove client from userlistRemove_client(); // There's no problem with this code} else {// If data was received, send to all usersSend_msg();}}while(size > sizeof(recvbuf));