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Changes with Apache 2.0b1
  *) Support for typedsafe optional functions - that is functions exported by
     optional modules, which, therefore, may or may not be present, depending
     on configuration. See the experimental modules mod_optional_fn_{ex,im}port
     for sample code. [Ben Laurie]

  *) filters can now report an HTTP error to the server.  This is done
     by sending a brigade where the first bucket is an error_bucket.
     This bucket is a simple bucket that stores an HTTP error and
     a string.  Currently the string is not used, but it may be needed
     to output an error log.  The http_header_filter will find this
     bucket, and output the error text, and then return 
     AP_FILTER_ERROR, which informs the server that the error web page
     has already been sent.  [Ryan Bloom]

  *) If we get an error, then we should remove all filters except for
     those critical to serving a web page.  This fixes a bug, where
     error pages were going through the byterange filter, even though
     that made no sense.  [Ryan Bloom]

  *) Relax the syntax checking of Host: headers in order to support
     iDNS. PR#6635 [Tony Finch]

  *) Cleanup the byterange filter to use the apr_brigade_partition
     and apr_bucket_copy functions.  This removes a lot of very messy
     code, and hopefully makes this filter more stable.
     [Ryan Bloom]

  *) Remove AddModule and ClearModuleList directives.  Both of these
     directives were used to ensure that modules could be enabled
     in the correct order.  That requirement is now gone, because
     we use hooks to ensure that modules are in the correct order.
     [Ryan Bloom]

  *) When SuExec is specified, we need to add it to the list of
     targets to be built.  If we don't, then any changes to the
     configuration won't affect SuExec, unless 'make suexec' is
     specifically run.  [Ryan Bloom]

William A. Rowe Jr's avatar
 
William A. Rowe Jr committed
  *) Cleaned out open_file from mod_file_cache, as apr now accepts
     the APR_XTHREAD argument to open a file for consumption by
     parallel threads on win32.  [William Rowe]

  *) Correct a bug in determining when we follow symlinks.  The code
     expected a stat -1 result, not an apr_status_t positive error.
     Also check if the APR_FINFO_USER fields are valid before we
     follow the link.  [William Rowe]

  *) Move initgroupgs, ap_uname2id and ap_gname2id from util.c to
     mpm_common.c.  These functions are only valid on some platforms,
     so they should not be in the main-line code. [Ryan Bloom]

  *) Remove ap_chdir_file().  This function is not thread-safe,
     and nobody is currently using it.  [Ryan Bloom]

  *) Do not try to run make depend if there are no .c files in the
     current directory, doing so makes `make depend` fail.
     [Ryan Bloom]

   *) Update highperformance.conf to work with either prefork or
      pthreads mpms.  [Greg Ames] 

  *) Stop checking to see if this is a pipelined request if we know
     for a fact that it isn't.  Basically, if r->connection->keepalive == 0.
     This keeps us from making an extra read call when serving a 1.0
     request.  [Ryan Bloom and Greg Stein]

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Tony Finch committed
  *) Fix the handling of variable expansion look-ahead in mod_rewrite,
     i.e. syntax like %{LA-U:REMOTE_USER}, and also fix the parsing of
     more complicated nested RewriteMap lookups. PR#7087 [Tony Finch]

  *) Fix the RFC number mentioned when complaining about a missing
     Host: header. PR#7079 [Alexey Toptygin <alexeyt@wam.umd.edu>]

  *) Fix an endless loop in ab which occurred when ab was posting
     and the server dropped the connection unexpectedly.
     [Jeff Trawick]

  *) Fix a segfault while handling request bodies in ap_http_filter().  
     This problem has been seen with mod_dav usage as well as with 
     requests where the body was just being discarded.  [Jeff Trawick]
  *) Some adjustment on the handling and automatic setting (via
     hints.m4) of various compilation flags (eg: CFLAGS). Also,
     add the capability to specify flags (NOTEST_CFLAGS and
     NOTEST_LDFLAGS) which are used to compile Apache, but
     not used during the configuration process. Useful for
     flags like "-Werror". [Jim Jagielski]

  *) Stop using environment variables to force debug mode or
     no detach.  We now use the -D command line argument to 
     specify the correct mode.  -DONE_PROCESS and -DNO_DETACH.
     [Greg Stein, Ryan Bloom]
Ben Laurie's avatar
Ben Laurie committed
  *) Change handlers to use hooks. [Ben Laurie]

  *) Stop returning copies of filenames from both apr_file_t and
     apr_dir_t.  We pstrdup the filenames that we store in the
     actual structures, so we don't need to pstrdup the strings again.
     [Ryan Bloom]

  *) mod_cgi: Fix some problems where the wrong error value was being
     traced.  [Jeff Trawick]

  *) EBCDIC: Fix some missing ASCII conversion on some protocol data.
     [Jeff Trawick]

  *) Add generic hooks. [Ben Laurie]

  *) Use a real pool to dup the error log descriptor.  [Ryan Bloom]

  *) Fix a segfault caused by mod_ext_filter when the external filter 
     program does not exist. [Jeff Trawick]

  *) Fix an output truncation error when on an HTTP >= 1.0 request an
     object of size between DEFAULT_BUCKET_SIZE and AP_MIN_BYTES_TO_WRITE 
     was served through mod_charset_lite (or anything else that would
     create a transient bucket in this size range).  ap_bucket_make_heap()
     silently failed (fixed), transient_setaside() discovered it, but
     ap_save_brigade() ignored it (fixed). [Jeff Trawick]
     
  *) Ignore \r\n or \n when using PEEK mode for input filters.  The problem
     is that some browsers send extra lines at the end of POST requests, and
     we don't want to delay sending data back to the user just because the
     browser isn't well behaved. [Ryan Bloom]

  *) Get SuEXEC working again.  We can't send absolute paths to suExec
     because it refuses to execute those programs.  SuEXEC also wasn't
     always recognizing configuration changes made using the autoconf
     setup.  [Ryan Bloom]

  *) Allow the buildconf process to find the config.m4 files in the correct
     order.  Basically, we can now name config.m4 files as config\d\d.m4,
     and we will sort them correctly when inserting them into the build
     process.  [Ryan Bloom]

  *) Get mod_cgid to use apr calls for creating the actual CGI process.
     This also allows mod_cgid to use ap_os_create_priviledged_process,
     thus allowing for SuExec execution from mod_cgid.  Currently, we do
     not support everything that standard SuExec supports, but at least
     it works minimally now. [Ryan Bloom]

  *) Allow SuExec to be configured from the ./configure command line.
     [Ryan Bloom]

  *) Update some of the docs in README and INSTALL to reflect some of
     the changes in Apache 2.0 [Cliff Woolley <cliffwoolley@yahoo.com>]

  *) If we get EAGAIN returned from the call to apr_sendfile, then we
     need to call sendfile again.  This gets us serving large files
     such as apache_2.0a9.tar.gz on FreeBSD again. [Ryan Bloom]

  *) Get the support programs building cleanly again.
     [Cliff Woolley <cliffwoolley@yahoo.com>]

William A. Rowe Jr's avatar
 
William A. Rowe Jr committed
  *) The Apache/Win32 Apache.exe and dll's now live in bin.  The 
     current directory logic now backs up over bin/ to determine the
     server root from the Apache.exe path.

  *) Apache/Win32 now follows the standard conventions of mod_foo.so
     loadable modules, dynamic libs are all named libfoo.dll, and the
     makefile.win populates the include, lib and libexec directories.

  *) Apache is now IPv6-capable.  On systems where APR supports IPv6,
     Apache gets IPv6 listening sockets by default.  Additionally, the
     Listen, NameVirtualHost, and <VirtualHost> directives support IPv6
     numeric address strings (e.g., "Listen [fe80::1]:8080").
     [Jeff Trawick]

  *) Modify the install directory layout.  Modules are now installed in
     modules/.  Shared libraries should be installed in libraries/, but
     we don't have any of those on Unix yet.  All install directories
     are modifyable at configure time. [Ryan Bloom]

  *) Install all header files in the same directory on Unix. [Ryan Bloom]

  *) Get the functions in server/linked into the server, regardless of
     which modules linked into the server.  This uses the same hack 
     for Apache that we use for APR and apr-util to ensure all of the
     necessary functions are linked.  As a part of thise, the CHARSET_EBCDIC
     was renamed to AP_CHARSET_EBCDIC for namespace protection, and to make
     the scripts a bit easier.
     [Ryan Bloom]
  *) Rework the RFC1413 handling to make it thread-safe, use a timeout
     on the query, and remove IPv4 dependencies.  [Jeff Trawick]

  *) Get all of the auth modules to the point that they will install and
     be loadable into the server.  Our new build/install mechanism expects
     that all modules will have a common name format.  The auth modules 
     didn't use that format, so we didn't install them properly.
     [Ryan Bloom]

  *) API routines ap_pgethostbyname() and ap_pduphostent() are no longer
     available.  Use apr_getaddrinfo() instead.  [Jeff Trawick]

  *) Get "NameVirtualHost *" working in 2.0.  [Ryan Bloom]

  *) Return HTTP_RANGE_NOT_SATISFIABLE if the every range requested starts
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