#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdio.h>


int main(int argc, char *argv[])
{
  int filetoread;
  char c;
  int done = 0;
  int result;

  if (argc < 2) {
    printf("We need an argument.\n");
    return -1;
  }
  
  /* open a file */
  filetoread = open(argv[1], O_RDONLY);
  if (filetoread == -1) {
    printf("File is not found.\n");
    return -1;
  }
  
  while (done == 0) {
    /* read the file */
    result = read(filetoread, &c, 1);
    if (result < 1)
      done=1;
    else {
      /* print content to the screen */
      result = putchar(c);
      if (result == EOF) {
	printf("Output failure.\n");
	return -1;
      }
    }
  }

  /* close the file */
  close(filetoread);
  
  return 0;
}