Pad a byte[] to a given block size

gistfile1.c

void* padBuffer(void* buf, int buflen, int blocklen){
  void* barr;
  int barrlen;

  if(buflen > blocklen){
    barrlen = buflen + (blocklen-(buflen%blocklen));
  }else{
    barrlen = blocklen;
  }

  barr = calloc(1, barrlen);
  memcpy(barr, buf, buflen);

  return barr;

}