#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>
#include <readline/readline.h>
#include <readline/history.h>


/* Common client and server code (for fifo and tcp samples). */


/* ======================================================
   The client function reads from stdin (using readline),
   and unless the line is "quit",
   sends it to the file descriptor. Also quits if stdin is closed...
*/

void client(int fd) {
  char *line;

  while (line = readline("What should I send? ")) {
	if (strncmp(line,"quit",4)==0) 
	  break;
	if (write(fd,line,strlen(line))<0) {
	  perror("Error writing to fifo");
	  exit(1);
	}
	/* readline strips the newline, we should send one... */
	if (write(fd,"\n",1)<0) {
	  perror("Error writing to fifo");
	  exit(1);
	}
  }
  close(fd);
}

/* ======================================================
   The server function reads from a file descriptor, and
   sends everything it reads to stdout. This function
   returns only once the client has closed it's end of 
   the connection (fifo or tcp connection).
*/

void server(int fd) {
  int cnt;
  char buf[100];

  printf("Connection established, now waiting for input\n");
  /* while read returns something, send to stdout */
  /* read will return 0 when somebody has closed the other end */

  while ((cnt = read(fd,buf,100))>0) {
    write(1,buf,cnt);
  }

  close(fd);
}