Canonicalize all reply structs onto stack allocation and static
initialization, like already done in most other extension. So make
the code easier to understand and allow further simplifications by
subsequent commits (we can then use generic macros for doing the
actual sending, as well as byteorder swapping, size computation, etc),
Also gaining a little bit efficiency by skipping some heap allocations.
Dynamically sized payload buffers (where the upper bound isn't known),
are still allocated on heap.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
5c09c89903