[issue12837] Patch for issue #12810 removed a valid check on socket ancillary data

[Antoine Pitrou]

Antoine Pitrou <pitrou at free.fr> added the comment:

If you're casting to a larger signed type, then the semantics change, since there is a sign extension.
For example (unsigned int) 0xFFFFFFFF could be cast to (long long) -1.

You could cast to size_t instead and compare the result to SOCKLEN_T_MAX (which currently doesn't exist :-)).

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue12837>
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