10.7

/*
 * 10.7.c
 */
#include <stdio.h>
#include "csapp.h"

int main(int argc, char* argv[]) {
  int n;
  char buf[MAXBUF];

  while ((n = Rio_readn(STDIN_FILENO, buf, MAXBUF)) != 0)
    Rio_writen(STDOUT_FILENO, buf, n);

  return 0;
}