Including the module source is a dirty hack, but maybe the direct way is
best for now. More functional tests are still TODO.

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Add previously embargoed test case for CVE-2017-7668.

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This should be trunk-only, not part of the backport branch.

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ap_pbase64decode_strict() adds to the functionality of
ap_pbase64decode() in two ways:

- the length of the decoded buffer is returned, allowing embedded NULLs
  to be retained by the caller
- the input string is strictly checked for Base64 validity, including
  correct zero-padding at the end of the string

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Remove the testcase stubs and object files on `make clean`.

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Add a CMake version of the httpdunit build system. At the moment, the only
annoyance is that CMake doesn't like globbing source files, so the
generator must be re-run whenever test cases are added.

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Check seems to have trouble with type definitions when using a
CMake+Windows toolchain. Include apr.h before check.h to ensure pid_t
exists.

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Look, a legitimate use of cat!

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This gets around strict compiler warnings.

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Add a unit test suite based on Check:

    https://libcheck.github.io/check/

The suite depends on the build system to automatically generate the code
stubs that call every test case.

httpdunit is automatically enabled in the build if configure is able to
find Check via pkg-config. At the moment pkg-config is the only official
(non-deprecated) way to build and link against Check with an autoconf
system, since platforms may distribute Check as a static library.

Note that Check is an LGPL'd library, so we can't distribute test
objects and binaries. Building and running the suite remains optional
and is not required to run the server.

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Just append to the list.

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For source files that exist in another directory, libtool will by
default put the output file in the current working directory instead of
next to the source file. Our build logic would then `touch` an empty
output file in the place where the actual output should have gone.

Replace the touch logic with an explicit -o option to libtool.

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As noted by Christophe Jaillet in the dev@ ml nested
if/elseif/else conditions are now evaluated. The code
change has been already backported to 2.4.x.



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Suggestion by wrowe. These files haven't changed in years; since we need
them anyway, check them in directly. buildconf will still copy over the
latest versions during setup, and SVN will tell us if there are any
changes (once I remove the svnignore).

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Patch by rjung.

The 1.1.0 compatibility macro for OpenSSL_malloc_init() causes problems
when mixed with procedure linkage stubs with some toolchains (e.g. GCC).
OpenSSL's malloc implementation doesn't recognize that the PLT stub
points back to it, which leads to infinite recursion.

Since the 1.1.0 documentation states that calling this function
explicitly is no longer necessary except "in certain shared-library
situations"(?), get rid of it.

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Add an explicit NULL to initialise a field in an authn_provider structure, as done in all other places.  PR 60636

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When processing a 'SetEnv' directive, warn if the environment variable name includes a '='. It is likely a configuration error.   PR 60249

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has been reclassified in current OpenSSL releases as WEAK due to 112
or fewer bits of remaining cipher strength, while the Sweet32 disclosure
extended the criticism of RC4 on to 3DES. (IDEA, which potentially has the
same issue, is never enabled by default in OpenSSL, due to patent concerns.)

This commit does not change default httpd behavior, but alters the suggested
behavior of newly provisioned httpd servers. Where adopted, XP with IE8 will
no longer handshake with mod_ssl (previously, XP with IE6 would not handshake.)
The same net effect occurs where OpenSSL is updated to 1.1.0.


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(present in 2.4.x CHANGES)



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This sentence has been discussed in the docs@
mailing list since it wasn't super clear for
some people. I propose to just remove it,
the rest of the content is already clear in
my opinion.



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1794142 13f79535-47bb-0310-9956-ffa450edef68

update after mod_http2 backport



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1794053 13f79535-47bb-0310-9956-ffa450edef68

mod_http2: fail requests without ERROR log in case we need to read interim
     responses and see only garbage. This can happen if proxied servers send
     data where none should be, e.g. a body for a HEAD request.



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(Why wasn't mod_ssl.html.en updated during my last build...?)

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