Rich Salz says:

If you are writing C, look at doc/inndcomm.3 and include/inndcomm.h;
they include all you need to do any ctlinnd command (in fact, ctlinnd
itself is little more than a call to the library).

Hacking up a Perl subroutine that spoke to innd's Unix-domain control
socket should be fairly straightforward but hasn't yet been written.

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