#include <stdio.h>
#include <io.h>
#include <fcntl.h>

unsigned nencode_block(char *outblock, char *inblock, unsigned len);

#define IBSIZE (3*1024) /* must be divisible by 3 */
#define OBSIZE (3*2120)

int n_inbuf;
char inbuf[IBSIZE];
char outbuf[OBSIZE];

unsigned int fill_inbuf(int f)
{
  n_inbuf=_read(f,inbuf,IBSIZE);
  if(n_inbuf<0) return 0; else return n_inbuf;
}

main(int argc, char **argv)
{
  int f;
  if(argc!=2 || -1==(f=_open(argv[1],O_RDONLY|O_BINARY)))
  {
    fputs("RAWENC ERROR\n",stderr);
    return 1;
  }
  nencode_block(NULL,NULL,0);
  while(fill_inbuf(f))
    _write(1,outbuf,nencode_block(outbuf,inbuf,n_inbuf));
  _close(f);
}