There are a few (9?) places where "getNullAddr" is called. I assume this would return what was earlier called a "null key." It returns the requested informat

There are a few (9?) places where "getNullAddr" is called. I assume this would return what was earlier called a "null key." It returns the requested information, except when the new address could not be inserted into the database, in which case it returns false. Less than half of the calls have any failure checking, and a few of those return false as well, and who knows if the things that call those functions have any error checking...