port the fix for PR35292 forward from the 2.3 trunk to the async-dev branch, because one of the perl-framework test cases now checks for this fix

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forward-port the latest versions of mod_ssl and mod_setenvif from the 2.3 trunk to the async-dev branch so t/TEST will work once again

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The big change is that it now does nonblocking writes when possible.  The
goal of this redesign is to more cleanly support asynchronous write completion
in MPMs such as Event or Leader.  However, the nonblocking writes may also
help in Worker and Prefork by allowing more overlapping of handler and
output filter processing with network writes.


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interact with the async R&D, but I'm merging it into the async-dev branch
because there's now a test case specifically for this change in
httpd-test/perl-framework.)


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the new io_multiplexer object is intended to provide a
foundation for async processing of the other connection
states.


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Also, core_create_conn() now initializes the conn_state within the newly
created connection.


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*) Put an example of using it into the Event MPM, which just calls the original core output filter.  


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what verification is done by the proxy in the proxy-to-SSL-server
case.


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(1.3 has done that for a while)


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returned by X509_LOOKUP_add_dir or X509_LOOKUP_load_file to detect
malformed or misconfigured CRLs.  Clear error stack beforehand to
ensure reported errors are relevant.

PR: 36438


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variable at function-scope.


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Initiliase all of the first_*_limit variables to zero, so that we can actually
raise limits beyond their defaults reliably. 



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Revert one part. I should have tested seperately. This line isn't neccessary.



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Actually allow the admin to set thread_limit higher than the default. 

Also, initialise the first_ variables, since they are tested in the
set_ functions.



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a function I think, especially with the fact that
the mapping of getpid() to APR_PID_T_FMT isn't
consistant in some areas. 


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versions 1.2.0 or higher.


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broke all the -Werror builds.


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Make my PR references consistent with everyone elses.



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PR: 34264


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* modules/ssl/ssl_engine_kernel.c (ssl_hook_Access): Ensure that
renegotiation is performed for a transition from "SSLVerifyClient
optional" to "SSLVerifyClient require".

The boolean "verify_old & SSL_VERIFY_PEER_STRICT" is true if the old
context merely has optional verification configured, since the
definition of SSL_VERIFY_PEER_STRICT is
(SSL_VERIFY_FAIL_IF_NO_PEER_CERT | SSL_VERIFY_PEER).


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If uid_t and gid_t are unsigned on a platform (hurd, for example), using -1
may cause a compiler warning. 



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Fix PR36410; Change how the get_suexec_identity hook is handled by CGID.
Instead of using mod_userdir and mod_suexec specific hacks, we now run the hook
on the httpd side of the handler. 

If this is NULL, we pass on a magic empty_ugid constant, otherwise pass on the
real ugid.

On the cgid side of the equation, we add our own hook, with REALLY_FIRST, and
then order the hooks. This ensures that cgid's doer runs before any other
registered get_suexec_identity doers.

We use cgid's request config to store the ugid. If ugid == empty_ugid, we DON'T
call ap_os_create_privileged_process, because our doer would return the magic
empty_ugid constant. Having the doer return NULL is no good, because then
userdir and mod_suexec's doers would be called. Instead, we call plain old
apr_proc_create(). 



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reached.


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  Correct mod_cgid's argv[0] so that the full path can be delved by the
  invoked cgi application, to conform to the behavior of mod_cgi.

PR: 34542
Reviewed by: Andre, OtherBill
Submitted by: Pradeep Kumar S <pradeep.smani gmail.com>



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  Noticed in the development of fips-enabled mod_ssl, when we are
  configured to support exactly one protocol, use that explicit server
  and client mechansim to handshake with the client or proxied machine,
  rather than the generic SSLv23_[client|server]_method().

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Implement graceful stop in the event MPM. Implementation is identical to
the worker MPM implementation. 



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*how* did I mis-spell that.



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Move the "GracefulShutdownTimeout" command definition into mpm_common



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@264103 13f79535-47bb-0310-9956-ffa450edef68

submited by: Neale Ranns neale ranns.org
reviewed by: Ian Holsman



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Add graceful-stop to the list of new features. 



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Update transformations to reflect the graceful-stop XML documentation.



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Add a note on the possible pit-falls that lie ahead when running multiple
instances of httpd at the same time.



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If it makes it in to 2.2, leave it. Otherwise bump it later.



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Update CHANGES to reflect that worker now supports graceful-stop, that Bill
wrote some of the graceful-stop code I stole from Ken, and to get rid of
exraneous `'`'s.



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