Overhaul the caching guide in an effort to clearly distinguish between
the mod_cache caching, the socache caching, and other caching we do, such
as mod_file_cache.


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Fix a few compiler warning reported by Steffen:
- some signed/unsigned mismatches
- const for a function does not make sense


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Add lots of unique tags to error log messages

ssl_util.c: Downgrade some dynamic locking messages from level DEBUG
to TRACE1-3


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Change the provider names to match the module names:
mod_slotmem_shm: shared -> shm
mod_socache_memcache: mc -> memcache


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More pointers to mod_socache*


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per module as the proxy_function instead of
the macro __FUNCTION__ which is not C89.

There's no real loss of information, because all
of the calls are in the same scgi handler function.

All proxy modules apart form SCGI already use the
upper case scheme in the analogous calls.

Backport of r1210124 from trunk.


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Point to mod_socache_* in the SSLSessionCache error message


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mod_proxy: Remove dead code from the public API, move single use code out
of the public API, remove redundant code from the public API.
mod_cache: Remove redundant code from the public API.


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mod_proxy: Make ap_proxy_retry_worker() into an optional function. Allows
mod_lbmethod_bybusyness, mod_lbmethod_byrequests, mod_lbmethod_bytraffic
and mod_lbmethod_heartbeat to be loaded without mod_proxy yet being present,
which happens when modules are loaded in alphabetical order.


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Add APLOGNO() macro for unique tags for every log message.


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ap_core_translate: factor out duplicate code.  no functional change.

Submitted by: Greg Ames


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Fix apr_status_t being passed as loglevel


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- Add some error handling for writing to the output filter chain.
- Add some ap_assert()s for error cases that probably should not happen (and
  the following code would break).
  These fix some compiler warnings about "variable 'rv' set but not used".
- Prevent a leak of a bucket in one error case.


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mod_auth_form: Use apr_status_t for the mod_session API.


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mod_session_dbd: Use apr_status_t as a return code across the mod_session API.


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mod_session: Use apr_status_t as a return code across the mod_session API,
clarify where we ignore errors and why.


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Fix segfault with Solaris LDAP SDK when enabling ldaps.

Enable SSL by passing secure=1 to apr_ldap_init instead of calling
apr_ldap_set_option(... APR_LDAP_OPT_TLS ...).

This change carefully avoids any change of behavior on non-Solaris LDAP SDKs.

PR: 42682


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mod_session_crypto: Fix a pool lifetime problem when reading from
SessionCryptoPassphraseFile.


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* server/listen.c (open_listeners): Fix logic error caught by
  Coverity; possible NULL pointer deref at startup with a
  particular (and unlikely) listener/system config.



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Fix for additional cases of URL rewriting with ProxyPassMatch or
RewriteRule, where particular request-URIs could result in undesired
backend network exposure in some configurations. (CVE-2011-4317)

Thanks to Prutha Parikh from Qualys for reporting this issue.

* modules/proxy/mod_proxy.c (proxy_trans): Decline to handle the "*"
  request-URI.  Fail for cases where r->uri does not begin with a "/".

* modules/mappers/mod_rewrite.c (hook_uri2file): Likewise.



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Bring Windows httpd.conf up to date with documented or required modules


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mod_rewrite: Add the AllowNoSlash RewriteOption, which makes it possible
for RewriteRules to be placed in .htaccess files that match the directory
with no trailing slash. PR 48304.


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regexes for no additional cost.


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Use 2 sep hashing functions to account for collisions...
Safe enough
Reviewed/backported by: jim


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Remove some getpid() logging, this is now also included in the error log format.


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mod_cache: Apply the API change that allows future mod_cache providers to
invalidate cache entries, which will fix PR15868.


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Remove some more now redundant log prefixes


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Clarify the peer IP of the connection and the client IP of the request within
the docs.


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