/* Implement a web server that just forwards every
   request to www.eng.utah.edu
*/

#include "csapp.h"

int main(int argc, char **argv) {
  char *portno = "11111";
  int ls, cs, s;

  ls = Open_listenfd(portno);
  
  while (1) {
    struct sockaddr_in addr;
    unsigned int len = sizeof(addr);
    size_t total_amt, amt;
    char *buffer;

    s = Accept(ls, (struct sockaddr *)&addr, &len);
    cs = Open_clientfd("www.eng.utah.edu", "80");

    //char *req_str = "GET /~cs4400/ HTTP/1.0\r\n\r\n";

    buffer = malloc(MAXBUF);
    rio_t rio;
    Rio_readinitb(&rio, s);
    while((amt = Rio_readlineb(&rio, buffer, MAXBUF)) != 2) {

      Rio_writen(cs, buffer, amt);
    }
    Rio_writen(cs, "\r\n", 2);  
    /* If a client is using HTTP/1.1 and has requested
       that the connection stay alive, then this loop
       will get stuck --- until the server decides that
       the connection has been open long enough and closes
       it anyway. To avoid this problem, intercept
       any "Connection:" header from the client and
       add a "Connection: close" header line. */
    while((amt = Rio_readn(cs, buffer, MAXBUF)) != 0){
      Rio_writen(s, buffer, amt);
    }

    Close(s);
    free(buffer);
    Close(cs);
    

    
  }
    
}