NetSNMP::agent and ASN_COUNTER64

Hello all,


It seems the NetSNMP::agent module can't deal properly with
ASN_COUNTER64 types. Whenever I try to use this type when calling the
setValue() method on the request object from an embedded perl agent, no
value is returned at all from the OID. There are no errors at all in
the log, it looks as if it was silently discarded. Is this a known
problem?

I've had a quick look at the code, and even though this is not
sufficient to explain this problem, the code that handles ASN_COUNTER64
types is broken. Indeed, it's trying to store the value in an "unsigned
long" variable, which is going to be 32bits on the vast majority of
32bits platforms. If we get a string and parsing is required, the code
uses strtoul() which is similarly inadequate.

A possible fix would be to use "unsigned long long" variables and
strtoull(), but that has the drawback that this variable type and
associated function is only standard starting with C99, and some
platforms may not support it. I've had a try at this, but I can't
report on wether it works or not, since there is some other problem that
causes the value to be discarded somehow.

This happens with net-snmp 5.3.1 from the FreeBSD port, which contains a
few patches from the SVN repository that I had to add to fix other
issues (memory leaks and 64bits fixes). From what I can see, there
haven't been any changes in the trunk that are likely to fix these
issues; the agent.xs file is basically the same. Any help on this would
be greatly appreciated. If more information is needed, please just tell
me and I will send it as soon as possible.

Thanks,
Maxime

PS: Please keep me in the Cc: list since I am not subscribed to this
mailing list.


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