/**
* Creates a mostly unitialized SHAiButtonUser object. This constructor merely copies the
* coprocessors 7 byte binding code into a local cache and stores the name of the account service
* file used for all user iButtons.
*
* <p>Since this constructor leaves data unitialized, you should be very careful with the use of
* it. It is expected that after calling this constructor, the user will call <code>setiButton
* </code> to finish the initialization process. On memory-starved platforms, this should help
* optimize memory usage.
*
* @param copr The SHAiButtonCopr to which the user object is tied. This Coprocessor contains the
* necessary binding code and service filename, necessary for both locating a user and
* recreating his unique secret.
* @see #SHAiButtonUser18(SHAiButtonCopr,OneWireContainer18,boolean,byte[])
* @see #SHAiButtonUser18(SHAiButtonCopr)
*/
public SHAiButtonUser18(SHAiButtonCopr copr) {
// save a copy of the binding code
copr.getBindCode(this.fullBindCode, 0);
System.arraycopy(this.fullBindCode, 4, this.fullBindCode, 12, 3);
// create string representation of service filename
copr.getFilename(this.serviceFile, 0);
this.strServiceFilename = new String(this.serviceFile) + "." + (int) copr.getFilenameExt();
}
