//COMPILED WITH BLOODSHEAD DEVCPP

#include <winsock2.h> //This is the newest/greatest winsock... I think...
#include <winsock.h>  //Do I really need this and winsock2?? 
#include <iostream> //Basic knowlege stuff...
#include <cstring> //string stuff..

//TCP_IP VALUES
int PORT=3000;
char ADDRESS[]="127.0.0.1"; //just informational not used in the code.
char recvbuffer[1000];
using namespace std;
main()
{

WSADATA ws;   //got to have because windows 
WSAStartup(0x0101,&ws); //same... 

SOCKET tcp_socket;  //Making my socket now
struct sockaddr_in peer; //incomming IP??? 
int peerlen;//just an everyday int var..

fd_set fd; //create a file descriptor set called fd
FD_ZERO(&fd); //zero out our fd (otherwise this program tends to crash)
struct timeval tv; //create a time value object
tv.tv_sec = 3; //set our timer value to wait for 3 seconds
tv.tv_usec = 0;

peer.sin_family = AF_INET; //ok you got AF_ and AP_??? what's that about
peer.sin_port = htons(PORT); //My port of 3000
peer.sin_addr.s_addr = htonl(INADDR_ANY); // let anything connect...

tcp_socket = socket(AF_INET, SOCK_STREAM, 0);
 //_STREAM TCP/IP.. and DTGRAM for UDP/IP... I think.. Got the UDP to work with text only for LAN connections.. need/want TELNET.

bind(tcp_socket,(struct sockaddr *)&peer,sizeof(peer));//Got it, understand it
listen(tcp_socket,3);//Got it, Understand it.

tv.tv_sec=0;
select(1, &fd, NULL, NULL, &tv);
tv.tv_sec=3;

while(1){ 
//ENTERED INTO AN INF LOOP... CTRL+C to close server

//FD RESET TO MAKE SELECT WORK
        FD_SET(tcp_socket, &fd); //re-set the fd so select() will work
        select(1, &fd, NULL, NULL, &tv);

while (!FD_ISSET(tcp_socket, &fd)) //if socket hasn't received any data yet...
        {
        FD_SET(tcp_socket, &fd); //re-set the fd so select() will work
        select(1, &fd, NULL, NULL, &tv);
        if (!FD_ISSET(tcp_socket, &fd)) {cout<<"Still waiting for data...\n";}
        }
//SOMETHIGNN IS MISSING>>> WILL NOT SEND NOR RECV MESSAGES ..... 

recv(tcp_socket,recvbuffer,sizeof(recvbuffer),0);
cout<<"RECVBUFFER:"<<recvbuffer<<endl;
send(tcp_socket,"TEST MESSAGE",12,0);
peerlen=sizeof(peer);
accept(tcp_socket,(struct sockaddr *)&peer, &peerlen);

}

//system("PAUSE");
//CLEAN UP THE SOCKETS
closesocket(tcp_socket);
shutdown(tcp_socket,0);
return(0);
}

/*
** selectserver.c -- a cheezy multiperson chat server
* First part modified by davekw7x
* Borland: just compile with bcc32
* Microsoft: Make sure library wsock32.lib is in the project
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define WINDOWS

#ifdef WINDOWS
#include <winsock2.h>

typedef unsigned int socklen_t;
#else

#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#endif

#define PORT 9034               // port we're listening on

int main(void)
{
    fd_set master;              // master file descriptor list
    fd_set read_fds;            // temp file descriptor list for select()
    struct sockaddr_in myaddr;  // server address
    struct sockaddr_in remoteaddr;      // client address
    int fdmax;                  // maximum file descriptor number
    unsigned listener;               // listening socket descriptor
    int newfd;                  // newly accept()ed socket descriptor
    char buf[256];              // buffer for client data
    int nbytes;
    char yes = 1;                // for setsockopt() SO_REUSEADDR, below
    socklen_t addrlen;
    int i, j;
#ifdef WINDOWS
    WSADATA ws;   //got to have because windows 
    WSAStartup(0x0101,&ws); //same... 
#endif

        printf("selectserver: new connection from %s on socket %d\n",
                inet_ntoa(remoteaddr.sin_addr), newfd);
        if(send(newfd, "Welcome!\r\n", strlen("Welcome!\r\n"), 0) == -1) {
            perror("send");
            printf("Error sending welcoming message\n");
        }

#include <winsock2.h> //required for socket programming, has winsock.h and more 
#include <iostream> //standard input output
#include <cstring> //allows user to work with and mod strings
#include <fstream> //allows user to work with files

//SERVER VALUES FOR IOFILES
int intro();     //declare a global sub 
//TCP_IP VALUES
int sockfd,new_fd;   //global declare int of xyz
int PORT=3000;    // global declare my port, also makes it easy to edit being at the top
int BACKLOG=10;   // Max allowed connections to the server
char ADDRESS[]="127.0.0.1"; //just for general info, could place it in the spot of INADDY_ANY..but why? That would only allow connections on that IP
char buffer[1000];  //Global declare of buffer to send/recv on and do whatever else we say.
char *msg; //Global declare "WILD" var. Flexable var with no set size.  use sizeof(msg) if size needed
int len; //Did I use this???? 

using namespace std;  //Standard for all PGMs. See your help files. 
main()  //MAIN ROUTINE
{
//heading information displayed on the server screen
cout<<"The TEST SERVER OF LEARNING"<<endl<<"Press CTRL+C to exit server."<<endl;
WSADATA ws;   //Windows required for winsock
WSAStartup(0x0101,&ws);  //Windows required for winsock.


//from here forward uncommented code is considered to be understood.

fd_set fd; //create a file descriptor set called fd
FD_ZERO(&fd); //zero out our fd (otherwise this program tends to crash)
struct timeval tv; //create a time value object
tv.tv_sec = 3;   //set the timeval struct seconds
tv.tv_usec = 0;
select(1, &fd, NULL, NULL, &tv); //Setting up our select to allow more than one connection

struct sockaddr_in my_addr;  //Building the socket names
struct sockaddr_in their_addr;
int sin_size; //just a plain int var to be used leater, at this time in code. It has no value.

sockfd=socket(PF_INET, SOCK_STREAM, 0); //Build our socket

my_addr.sin_family = AF_INET; //
my_addr.sin_port = htons(PORT); //HOST TO NETWORK SHORT -->setup SERVER port number
my_addr.sin_addr.s_addr=INADDR_ANY; //Setup SERVER to take any IP
memset(&(my_addr.sin_zero), '\0',8 ); //Fill in the remaining blank segments with 0

bind(sockfd,(struct sockaddr *)&my_addr,sizeof(struct sockaddr)); //The binding of SERVER IP to the NET
listen(sockfd, BACKLOG); //COMPUTER IS NOW SET TO LOOK/LISSEN for other computers to connect
while(1){  //jumping into a perm. LOOP, yea it will never end.
         while(!FD_ISSET(sockfd,&fd)){ //No one is wanting to connect??? also this is called NON-BLOCKING
           FD_SET(sockfd, &fd); //re-set the fd so select() will work
           select(1, &fd, NULL, NULL, &tv);
           sin_size = sizeof(struct sockaddr_in); //We got a hit and now setting up SOCKET size
           //new_fd is the return path to talk to the calling computer. However!!!, when in a non
           //non-blocking program, I yet to understand how to recv info into the server. 
           new_fd=accept(sockfd,(struct sockaddr *)&their_addr, &sin_size); 
           intro(); //call the sub rout. to send a file or into screen to the calling computer
           }
  recv(new_fd,buffer,sizeof(buffer),0); //not working yet... I am still learning.
  cout<<buffer; //used to see what the server recv'ed
  //send(new_fd,buffer,sizeof(buffer),0);//send something back to the client.. uncomment to activate
}

//system("PAUSE"); //make the SERVER pause before exiting, wused when debugging
WSACleanup(); //Cleanup the winsock
closesocket(sockfd); //close down the SERVER sockets
shutdown(sockfd,0); 
return(0);
}

int intro() //sub rout for learning how to send a file to the user screen
{
ifstream ifstartup ("startup.are" , ifstream::in ); //seeing if i can send a file to the screen
while(ifstartup.good()){
ifstartup.getline(buffer, sizeof(buffer));
strcat(buffer, "\n"); //force new line, other wise it jumbles up
send(new_fd,buffer,sizeof(buffer),0);
};
msg="\n\nWelcome to this test server.\n";
len=strlen(msg);
send(new_fd,msg,len,0);
ifstartup.close();
}