server.c

/* Sample TCP server */

#include <sys/socket.h>
#include <netinet/in.h>
#include <stdio.h>

int main(int argc, char**argv)
{
   int listenfd,connfd,n;
   struct sockaddr_in servaddr,cliaddr;
   socklen_t clilen;
   pid_t     childpid;
   char mesg[1000];

   listenfd=socket(AF_INET,SOCK_STREAM,0);

   bzero(&servaddr,sizeof(servaddr));
   servaddr.sin_family = AF_INET;
   servaddr.sin_addr.s_addr=htonl(INADDR_ANY);
   servaddr.sin_port=htons(843);
   bind(listenfd,(struct sockaddr *)&servaddr,sizeof(servaddr));

   listen(listenfd,1024);

   printf("STARTING\n");
   for(;;)
   {
      printf("A\n");
      clilen=sizeof(cliaddr);
      connfd = accept(listenfd,(struct sockaddr *)&cliaddr,&clilen);

      if ((childpid = fork()) == 0)
      {
         close (listenfd);

         for(;;)
         {
            printf("B\n");
            n = recvfrom(connfd,mesg,1000,0,(struct sockaddr *)&cliaddr,&clilen);
           strcpy(mesg,"<cross-domain-policy><allow-access-from domain=\"*\" to-ports=\"*\" /></cross-domain-policy>");
            n=strlen(mesg);

            sendto(connfd,mesg,n,0,(struct sockaddr *)&cliaddr,sizeof(cliaddr));
            printf("-------------------------------------------------------\n");
            mesg[n] = 0;
            printf("Received the following:\n");
            printf("%s",mesg);
            printf("-------------------------------------------------------\n");
         }
         
      }
      close(connfd);
   }
}