I want to have mod_cgi export stderr to specially-registered output filters....
(then if a cgi app writes to stderr, all stdout output could be replaced with a
"cgibomb report" or do something else.)
My first guess to do this is to load stderr into a bucket brigade, copy it into a ctx
record, then register the 3rd party module output filter with this special ctx
structure.
Lengthy description:
3rd party module calls a special OPTIONAL function:
cgi_register_output_and_stderr_filter("myname", runme, NULL,
AP_FTYPE_CONTENT);
That in turn updates a linked list inside mod_cgi... (it adds "myname" and
runme to it).
When a cgi app is run in mod_cgi,
mod_cgi puts stderr into a brigade.
creates a ctx structure and copies the stderr brigade to this ctx.
foreach name in the linked list, run
ap_register_output_filter()...passing this special ctx structure and the other data
the 3rd party module passed.
Then at request-finish time, all ctx's and bucket_brigades will be freed by
mod_cgi.
Is this the correct way ?
