int main() {

int fd = open("yourfilehere", O_RONLY);
char readbuf;
char readlgbuf[3];
char * rp;

int i = 0;
char filename[4];

filename = "par0";
int fa = open(filename, O_WONLY);

while(read(fd, readbuf, 1) != -1) {
  if(readbuf == 0xCE) {
	if(read(fd, readlgbuf, 3) != -1) {
	  if( readlgbuf == { 0xFA,0xED,0xFE } ) {
	    
	    close(fa);
	    i++;
	    
	    memcpy(filename+3, *(char *)i, 1);
	    
	    fa = open(filename, O_WONLY);
	  
	  	write(fa, "\xCE\xFA\xED\xFE", 4);
	  
	  } else {
	   write(fa, "\xCE", 1);
	   write(fa, readlgbuf, 3);
	  }
	} else
	  exit(0);
	}  
  } else {
   write(fa, readbuf, 1);
  }	
}

close(fa);
close(fd)
return 0;
}