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Re: How the backend knows it's being searched by syncprov?
Howard Chu wrote:
If we really need global knowledge of this control we can put the
#define's and such back into slap.h and controls.c.
#define o_sync_mode ...
would probably be the most useful.
I see another problem: this control is dynamically registered, so
o_sync_mode could yield unexpected results if the control is not
registered but its presence is tested by some pice of code. I guess only
statically (i.e. always) registered controls should make it into the
slap_control_ids structure, or a tri-state mech (present/not
present/undefined) should be used for testing, where "undefined" could
return the same value as "not present" but without crashing! (e.g. all
"undefined" cids could point to slot  of o_controls, which should be
intentionally left NULL for undefined controls?).
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