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

#define BUFSIZE 4096

/* ----------------------------------------------------------------------
 * Convert file altera.ttf to binary file ALTERA.dat
 * Reading from stdin, writing to stdout.
 * ---------------------------------------------------------------------- */
main()
{
  int value;
  int nbytes, nbuf;
  unsigned char buf[BUFSIZE];

  nbuf   = 0;
  nbytes = 0;
  while(fscanf(stdin, "%3d%*c", &value) != EOF){
    buf[nbuf++] = value;
    /* --- buffer full */
    if (nbuf==BUFSIZE){
      nbytes += write(STDOUT_FILENO, buf, BUFSIZE);
      nbuf = 0;
    }
  }

  /* --- flush buffer */
  nbytes += write(STDOUT_FILENO, buf, nbuf);
  fprintf(stderr, "Wrote %d bytes\n", nbytes);
}