Hi List!

It seems to be a common mistake to forget the terminating zero entry in a 
value_string, I've done this myself before and it's hard to track it down if 
you don't have a clue what's going wrong.

Even worse, this mistake might not make any problems for a long time as usually 
the values rushing in will be in the value_string (I've found my mistake by 
fuzz-testing).

We could automatically check the termination of the value_string (at least for 
the registered values) while registering the hf_ values. This will indicate the 
problem a lot earlier and at the place where it's caused (and not much, much 
later).

Of cause this has a drawback: Iterating trough all value_strings at 
registration will take a little bit of time at startup (didn't tried so don't 
know how long this will take).

What do others think: Is the added time overhead worth adding some extra 
robustness or are there other mechanisms possible to detect these kind of 
errors (e.g. static code analysis)?

Regards, ULFL
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