Method setActive

src/main/java/core/org/xbill/DNS/DNSInput.java:71–78

Marks the following bytes in the stream as active. @param len The number of bytes in the active region. @throws IllegalArgumentException The number of bytes in the active region is longer than the remainder of the input.

(int len)

 * is longer than the remainder of the input.
 */
public void
setActive(int len) {
	if (len > byteBuffer.capacity() - byteBuffer.position()) {
		throw new IllegalArgumentException("cannot set active " +
						   "region past end of input");
	}
	byteBuffer.limit(byteBuffer.position() + len);
}

/**
 * Clears the active region of the string.  Further operations are not