Introduce PassPhraseDialog 'pipe' mechanism.  This builds on DougM's
  apr-ization of the 'tty', and changes his naming a bit so we clearly
  identify the pipe-to and pipe-from the user.

  This patch invokes a bidirectional piped dialog to the user.


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  Introduce the PassPhraseDialog 'pipe' mechanism.

  This is the directive handling commit only, the mechanics patch will
  follow.  PassPhraseDialog "|/path/to/pipe" will use the bidirectional
  pipe to have a 'conversation', along the lines of the tty dialog with
  PassPhraseDialog 'builtin'.  This is entirely different than the 'exec'
  method, which simply runs once for each passphrase, and doesn't allow
  for failure/retries, and certainly doesn't offer any sensible 'dialog'.


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variables that for whatever reason weren't being placed into
config_vars.mk.

Warning: This commit alters the "default" layout (ie. when no --enable-layout
is specified). The most notable change will be htdocs in $prefix/share/htdocs,
which works with the autoconf defaults, but may not be what we want. This
will require more work.


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  Need broader permissions if we are to read and the set the flags that
  apply to the console stream.


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  This baffled .mak exported build targets for mod_ssl/abs.  They will
  recognize their output only as .\Release|Debug\mod_ssl.so, etc.  Without
  the leading .\ kept getting 'dunno how to make ... target'


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  Must admit, my use case was focused on services.  It seems that if we
  had a console, we weren't reassigning stdhandles with AllocConsole().
  Open the conin/conout very explicitly, and clean up some other cruft.


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Fix --enable-layout to work.

showstoppers--

Note: As far as we can tell, autoconf will not let us override our layout
settings from paramers like --prefix, etc. This is unfortunate, but
we will not let this get in the way of --enable-layout working. This
will be made clear in the docs.

PR: 9124, 9873, 9885, 9888


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Fix bug where --sysconfdir and --localstatedir were being ignored by APR.

Caution: When specifying --enable-layout, common arguments like --prefix,
--exec-prefix, etc. will be ignored and the settings from the layout
will be used instead.

PR: 9124, 9888, 9873, 9885
Submitted by:	Thom May <thom@planetarytramp.net>, Aaron Bannert
Reviewed by:    Justin Erenkrantz


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code. Doccos to be done soon


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release a new build if our top two filed issues aren't addressed.


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MPM and no segfaults.  Am I missing something or were these fixed with
Jeff's latest fixes?


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  Clarity on a snowy night in Illinois.


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logging.

The content length filter seems to track bytes_sent properly regardless
of HTTP version.  The HTTP header filter knows not to send C-L (or any
headers) to this client.

showstoppers--;

(Also fix typo of my last name in CHANGES...)


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  Whoh boy that's rough... We sometimes like to answer SIGHUP in the
  parent process, don't we?

  This -was- post-fork() in 1.3, but with the massive restructuring,
  we inadvertantly now whack the parent process.


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and switch to using apr_file api for portability.
stderr has already been redirected to the error_log.
rather than attempting to temporarily rehook it to the terminal,
we print the prompt to stdout before EVP_read_pw_string turns
off tty echo.  which is also more portable.


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than hack to only read passphrase on 1st round startup.  this change:
- fixes current segv on restarts (SHARED_MODULE is not defined)
- allows LoadModule ssl_module to be added to httpd.conf on restart
  (was core dumping previously)
- allows certs/keys to be changed on restart provided key is not
  encrypted or SSLPassPhraseDialog is exec.  if key is encrypted and
  SSLPassPhraseDialog is builtin, existing private keys will be reused
  on restart (which happens currently for any type of key/dialog).

note: mod_ssl currently leaks on restart; leaks more with this change.
      fixes to come.


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the module authors will appreciate the note directing them to the new
APIs.

showstoppers--

Also, fast_redirect is lame, toss it.


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Thanks Cliff for slapping me in the head.


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platforms.


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Submitted by:	Aaron Bannert
Tested by:	Jeff Trawick


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In particular, we use an mpm_common file for directives shared between
mpms.  These changes allow for an

<directivesynopsis location="mpm_common">
<name>Listen</name>
</directivesynopsis>

to be included in mpm documentation files.  Also, I added the option
of a <modulelist>, which is used in documenting directives inside
mpm_common.


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other variables in the same namespace with a shorter prefix substring.
How did this ever work before? I ran into this while testing some of
the recent layout-fixing patches.


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code earlier today.  With this mode, the Perchild MPM can finally be
fixed to work with filters.  I have changed a comment in the core to make
it clear that this mode is required, but I have mentioned how dangerous
this mode is.  Also add a comment to STATUS about my plans.

Hopefully I'll have some time this week to hack through the MPM.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@93565 13f79535-47bb-0310-9956-ffa450edef68

version 2.8.7-1.3.23.


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fix a segfault and a window in which we could miss joining
newly-created threads

we can't try to signal workers if the worker queue hasn't
been initialized (or we segfault)

make sure the start thread is done creating threads before
we try to join; otherwise we can just miss some of them and
not be able to clean them up properly


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the adjustment of the wait time was done too soon

now the code should be consistent with 1.3 behavior


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used by any of the MPMs.  (This is another step toward eliminating
the httpd's dependencies on the old lock API.)


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buckets: if a brigade containing an incomplete "<!--#" token
has been set aside in ctx->ssi_tag_brigade, we need to retrieve
and output the contents of that brigade if the next bucket (in
the next brigade) doesn't actually complete the "<!--#".

As part of this commit, I've commented out the recent changes
to detect flush buckets in the brigade, due to segfaults.  (I
think the fix may be to add some checks for sentinels and EOS
when advancing to the next bucket after the flush bucket.)


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@93557 13f79535-47bb-0310-9956-ffa450edef68

not the 'sub-request' as notes live in the parent's request
lifetime.

PR:
Obtained from:
Submitted by:
Reviewed by:


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