code: public void putreq_vfooter(String endmark)
      throws SoccomException
      {
      if (endmark.length()!=4)
          throw new SoccomException(SoccomException.ENDM_LENGTH);
      String msg = endmark + "\n";
      byte msgbytes[] = msg.getBytes();
      logline("SEND: " + endmark);
      try {
          _out.write(msgbytes);
      } catch (IOException e) {
          throw new SoccomException(SoccomException.REQUEST);
      }
      }
docs: Mark the end of a variable-size message.
  @param endmark This must be the same one as used in the putreq_vheader.
  @exception SoccomException Thrown when an IOException is encountered.