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to larger changes


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  destroying the pointer to the sending buffer in the ajp message if
  data is received from the backend before all data is sent to the
  backend.

PR: 45911


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* server/mpm/simple/simple_types.h
    (simple_timer_t): Add Pool and a pointer to the associated simple core.
    (simple_core_t): Remove dead timer ring, no recycling of timer events for now.

* server/mpm/simple/simple_event.h: Update register_timer signature with pool.

* server/mpm/simple/simple_event.c
    (simple_register_timer): Allocate the event structure out of the pool,
        and when this pool is destroyed, unregister the timer.
    (simple_timer_run): New util function for running a timer and cleaning up 
        the pool callbacks.

* server/mpm/simple/simple_core.c
    (simple_core_init): Remvoe dead timer ring

* server/mpm/simple/simple_run.c
    (simple_main_setup_timers): Pass in pool to register call.
    (simple_timer_invoke): Use new simple_timer_run function.
    (simple_child_loop): Remove dead timer ring.

* server/mpm/simple/simple_io.c
    (simple_io_process): Pass in pool when registering timers.


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Reset the timers when in the child -- this prevents a fork bomb, as each child would spawn N more children of its own, as the scheduled timer would go off in the child and the parent.


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Move creation of the pollcb object to after we fork(), since kqueues don't persist across fork(). (huh, didn't know that before)


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Prevent crash when provider alias created to provider which is not
yet registered.
Migrate remaining functionality of mod_authn_default to mod_authn_core.


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constrain their use to conform with that of other access control
and authorization directives.


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with other code sections), as well as be aware of
signs.


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for i in `ls *.h *.c`; do indent -i4 -npsl -di0 -br -nce -d0 -cli0 -npcs -nfc1 -nut ${i}; done


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mod_unixd.c is only os/unix/unixd.c, turned into a module.
(or more accurately, an ugly hack).  Work in progress, and the
old unixd will have to go once the module build stuff is in place.

This re-introduces some of the unixd stuff (set user, group and chroot)
to mpm_simple, and should work equally well with existing MPMs.
It also paves the way for alternative privilege management schemes,
which can be implemented in alternative modules: this´ll be
necessary to run mpm_simple on non-unix-family platforms, and
of interest for alternative Unix implementations.  By relegating
everything to a child_init hook, we can mix-and-match, though
weĺl need to add a regime that prevents just going right ahead
with nothing and running as root.

Round tuits permitting, we should be able to simplify unixd.h too,
and look towards eliminating it.



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  (core_dir_config): Fix warning: overflow in implicit constant conversion,
    generated by core.c line 117, which sets content_md5 to '2', which is too big
    for a signed value -- but it looks like this was really meant to be unsigned.


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  (cgid_server): Fix warning: 'env' and 'argv0' may be used uninitialized in 
    this function.


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  (authz_status): Remove trailing comma on enum.


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  (ap_process_async_request): Fix warning: 'return' with a value, in function 
      returning void


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  (dbd_child_init): New function, wrapper around dbd_setup_init.
  (dbd_hooks): Call dbd_child_init instead of casting dbd_setup_init.


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    including unixd.h.


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