#include "./stdinc.h"
const int	MYPORT = 3490;	// client connects to this port
const int	BACKLOG = 10;	// max # pending connections

main() {
  int sd;		// listen on sd
  int new_fd;		// new connection on new_fd 
  struct sockaddr_in
	myAddr,		// my address
	clAddr;		// client's address
  char *msg = "Hello World\n";	// reply msg
  int sinSz = sizeof(struct sockaddr_in);	// value-result arg
//  socklen_t sinSz = sizeof(struct sockaddr_in);	// value-result arg

  if ((sd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
	FatalPerror("socket error");
  myAddr.sin_family = AF_INET;         // HBO 
  myAddr.sin_port = htons(MYPORT);     // short, NBO 
  myAddr.sin_addr.s_addr = htonl(INADDR_ANY);
		// any interface; auto-fill with my IP; NBO
  bzero(&(myAddr.sin_zero), 8);        // 0 rest of the struct 
  if (bind(sd, (struct sockaddr *)&myAddr,
				sizeof(struct sockaddr)) == -1)
	FatalPerror("bind");
  if (listen(sd, BACKLOG) == -1)	FatalPerror("listen");
  while(1) {				// main accept() loop 
     new_fd = accept(sd, (struct sockaddr *) &clAddr, &sinSz);
     if (new_fd == -1)  FatalPerror("accept");
     printf("server: got connection from %s\n",
				inet_ntoa(clAddr.sin_addr));
     if (send(new_fd, msg, strlen(msg), 0) == -1)
	FatalPerror("send");
     close(new_fd);
  }
}