Manuel Pégourié-Gonnard 7f17155ac6 Avoid seemingly-possible overflow ...

By looking just at that test, it looks like 2 + dn_size could overflow. In
fact that can't happen as that would mean we've read a CA cert of size is too
big to be represented by a size_t.

However, it's best for code to be more obviously free of overflow without
having to reason about the bigger picture.

2015-12-10 14:36:25 +01:00

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