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Revision 1.49.2.19 - (hide annotations)
Sun Jan 19 17:39:10 2003 UTC (18 years, 9 months ago) by nmav
Branch: hydra_0_1_0_patches
Changes since 1.49.2.18: +2 -0 lines
The return of two mutexes.
Two mutexes are used in accept to allow parallel accepts
of SSL and plain connections.

1 nmav 1.49.2.13 ** Changes from 0.1.2 to 0.1.3 -
2     * Added DefaultCharset configuration directive. The default
3 nmav 1.49.2.14 character set given, will be appended to all text mime types.
4     * Corrected bug in KeepAlive usage in HTTP/1.1, which made the
5     server to ignore the value sent by the client.
6 nmav 1.49.2.15 * CGIAction can now be used even if HIC CGIs are disabled.
7 nmav 1.49.2.16 * Some optimizations in HTTP header parsing.
8 nmav 1.49.2.18 * Added a more complete mime.types in examples/ contributed by
9     <voidnull@qnet.pl>.
10     * Added the MaxSSLConnections configuration directive.
11 nmav 1.49.2.19 * Two mutexes are used in accept to allow parallel accepts
12     of SSL and plain connections.
13 nmav 1.49.2.13
14 nmav 1.49.2.10 ** Changes from 0.1.1 to 0.1.2 - 08/01/2003
15 nmav 1.49.2.4 * Allow running the server as root, if explicitly stated in
16 nmav 1.49.2.12 configuration file. Patch by James Harr <james@grickle.org>
17 nmav 1.49.2.5 * Better pthreads detection.
18 nmav 1.49.2.6 * Outputs to error log if non executable CGIs are found.
19 nmav 1.49.2.7 * Does not close HTTP/1.1 connections by default.
20 nmav 1.49.2.9 * The current behavour is to demand the Host header in HTTP/1.1
21     requests.
22     * Added support for CGIAction CGIs. There are just like CGIs
23 nmav 1.49.2.8 but they are not executed. They are parsed using a given program.
24 nmav 1.49.2.11 * Added init script for redhat in contrib/redhat/rc.hydra,
25     contributed by <voidnull@qnet.pl>.
26 nmav 1.49.2.4
27 nmav 1.49.2.3 ** Changes from 0.1.0 to 0.1.1 - 17/12/2002
28 nmav 1.49.2.2 * Corrected bug in Keep-Alive mode when SSL or TLS was enabled.
29     * Fixed unexpected timeout in first connection on an idle server.
30 nmav 1.49.2.1
31 nmav 1.49 ** Changes from 0.0.10 to 0.1.0 - 16/11/2002
32     * No changes. This is the final release by me --Nikos
33    
34 nmav 1.48 ** Changes from 0.0.9 to 0.0.10 - 08/11/2002
35 nmav 1.47 * Corrected bug in error logging.
36     * Use the TMPDIR environment variable instead of TMP to get
37     the temporary directory.
38    
39 nmav 1.46 ** Changes from 0.0.8 to 0.0.9 - 27/10/2002
40 nmav 1.42 * Long offsets are not used by default.
41     * Use of pipes instead of temporary files, if the post data sent
42     are less than PIPE_BUF.
43 nmav 1.44 * More consistent logging. The server's hostname or "unknown"
44 nmav 1.43 are prepended to the log message.
45 nmav 1.44 * Corrected redirection/aliases behaviour, to match the documented one.
46 nmav 1.45 * SSLParamsRefresh was renamed to MaintenanceInterval and is more
47     generic, since it includes some server cleanups.
48     * Added file access control lists per virtual host. Based on patch for
49     Boa by Peter Korsgaard <jacmet@sunsite.dk>
50 nmav 1.46 * Added the ability to disable HIC threads by using 0 in the
51     HICThreads configuration directive.
52     * Hydra now uses poll by default. Select is available using the --with-select
53     configure option.
54 nmav 1.42
55 nmav 1.41 ** Changes from 0.0.7 to 0.0.8 - 25/10/2002
56 nmav 1.36 * Better pthread detection.
57 nmav 1.40 * Better detection of dlopen call.
58 nmav 1.37 * Some changes to compile in gcc 2.95
59 nmav 1.40 * Added support for FreeBSD's sendfile (untested).
60 nmav 1.38 [Ported from Boa 0.94.14rc1]
61     * add new state, IOSHUFFLE, which utilizes sendfile (or
62     emulates it using the request's buffer, otherwise)
63     * make the default socket size 32K. The client_stream_size stays constant
64     at 8K, and the new 'buffer' size is 4K
65     Note also that the new code uses the "default" socket buffer size
66     it obtains with the first accept()ed socket.
67     * make default behavior be to leave stderr alone, but tie it
68     to cgilog otherwise
69 nmav 1.40 * add [optional, Linux-only] check for sendfile system call
70 nmav 1.38 * use --disable-sendfile to disable sendfile support
71     sendfile support for files > 100K is default, now.
72     It's significantly faster and easier than the alternative
73     * umask ~0770 before exec
74     * tie stdout to the access_log, unless there is no access_log,
75     in which case tie it to /dev/null
76     * use sensible defaults for umask (077) and (027 for CGI)
77     * add and document new parameters (CGILog and CGIumask)
78     * vast improvements to the cgi-test.cgi program, by Jon Nelson
79     and Landon Curt Noll.
80     * next 3 items by Don Mahurin (patches modified somewhat):
81     * pidfile patch
82     * default mime_types patch
83     * NCSA environment environment variables wrapped in
84     #ifdef USE_NCSA_CGI_ENV
85     * fix some escaping issues with the directory indexer
86     (Ulf Harnhammar)
87     * backport poll support from 0.95
88 nmav 1.36
89 nmav 1.35 ** Changes from 0.0.6 to 0.0.7 - 10/10/2002
90 nmav 1.26 * Added support for large files in 32 bit systems.
91 nmav 1.27 * Added support for SSL_* variables in CGIs.
92 nmav 1.28 * Added options in configuration file, to request and verify
93     a client certificate.
94 nmav 1.34 * The headers of HIC-CGIs are now parsed by the server.
95 nmav 1.33 * Corrected behavour in SIGHUP signal handling, to reread
96 nmav 1.29 the SSL related variables.
97 nmav 1.33 * Children and HIC threads are now killed using a signal, to avoid
98     unexpected errors, and memory leaks.
99 nmav 1.26
100 nmav 1.24 ** Changes from 0.0.5 to 0.0.6 - 03/10/2002
101 nmav 1.21 * Compatibility functions are now automatically included in hydra, if
102     they are not found by the configure script.
103 nmav 1.22 * Replaced the included scandir function, with the one in libc.
104 nmav 1.23 * Fixed code, which compiled fine with gcc 3.2, but didn't compile at
105 nmav 1.22 all, with any other compiler!
106 nmav 1.23 * Improved the MaxConnections directive semantics.
107 nmav 1.25 * Added a very primitive mime.types file in examples/ directory.
108 nmav 1.21
109 nmav 1.20 ** Changes from 0.0.4 to 0.0.5 - 02/10/2002
110 nmav 1.18 * If a requested CGI is not accesible then send 404 not found, instead
111     of trying to execute it.
112 nmav 1.19 * Corrected several stuff in HIC CGI handler. This allows Cookies,
113     POST data and Queries to work properly.
114 nmav 1.18
115 nmav 1.17 ** Changes from 0.0.3 to 0.0.4 - 30/09/2002
116 nmav 1.14 * Added support for If-Range, If-Match, If-None-Match HTTP/1.1 header
117     fields. The server also generates ETag headers for static content using
118 nmav 1.15 the last modified field of the file, and the file size. This makes
119     Hydra cache friendly.
120 nmav 1.16 * Added support for multiple HIC threads. This gives a boost to script generation
121 nmav 1.22 since they are no longer generated sequentially.
122 nmav 1.14
123 nmav 1.13 ** Changes from 0.0.2 to 0.0.3 - 28/09/2002
124 nmav 1.11 * Added support for dynamic modules that handle CGIs
125     internally (HIC). That way Hydra can run PHP.
126     * Fixes in CGI execution. CGIs that are not passed from aliasing
127     functions now properly set PATH_INFO and PATH_TRANSLATED.
128     (Needs further cleanup).
129 nmav 1.12 * Cleaned up SSL support. Now hydra can be compiled even if gnutls
130     is not available.
131 nmav 1.11
132 nmav 1.9 ** Changes from Boa/0.94.13 to Hydra/0.0.2 - 26/09/2002
133 nmav 1.2 * Added support for SSL 3.0 and TLS 1.0 protocols.
134     * Added support for multiple CPU's by making the server
135     run over a pool of threads.
136     * Changed the file caching code. The mmap() calls are cached until
137     the mmap list table is full.
138     * Added support for HTTP/1.1 ranges.
139 nmav 1.4 * Added support for hostname based virtual hosting.
140 nmav 1.5 Also changed the semantics of Alias, ScriptAlias and Redirect, to
141     take advantage of the host based virtual hosting.
142 nmav 1.3 * Added support for the TCP_CORK tcp option in linux.
143     * Cleaned up the CGI handling (gunzip, indexer are treated as CGIs)
144 nmav 1.10 * Enhanced grammar to handle 3 and 4 argument options.
145 nmav 1.7 * Added support for multiple directory indexes.
146     * Dropped support for gunzip.
147 nmav 1.8 * Use automake to create the distribution.
148 nmav 1.2
149 nmav 1.1 ** Changes from 0.94.12 to 0.94.13
150     * Change many instances of log_error_mesg + exit to DIE macro
151     * Change all instance of log_error_mesg (without exit) to WARN macro
152     * do a much better job of checking return values from malloc and
153     especially strdup.
154     * check results of calling umask and getrlimit
155     * server_s is no longer a global int
156     * check results of fork via switch instead of if (fork())
157     * check for getopt.h and include it if found
158     * remove unused #defines, and add WARN macro, and replace
159     many calls to log_error_mesg(..) with WARN macro
160     * fix bug in get_commonlog_time where time_offset calculation was
161     the opposite of what it should be ('-' and '+' were swapped)
162     * fix compatability bug with old and newer versions of flex/yacc
163     * add check for AC_FUNC_MMAP to configure.in
164     * fix really lame thinko in normalize_path, which would prepend the
165     results of earlier calls to results from later calls
166     * Add MaxConnections, a configuration directive which allows the
167     user to specify the maximum number of connections that Boa will
168     accept concurrently.
169     * add SERVER_ADDR and REQUEST_URI to environment of CGI
170     * handle SIGBUS during writes of data that has been memory mapped
171     * minor optimization in select.c that prevents DEAD requests from
172     being added to the block set
173     * fix bug in CGI environment script_name - closes sf.net bug #576725
174     * make 'status' variable local to requests.c, not local to every file
175     by forgetting to declare 'extern' in globals.h :-|
176     * make getsockname non-fatal, and do it every time because we may
177     need it for the CGI
178     * some minor refactoring optimizations in hash.c
179    
180     ** Changes from 0.94.11 to 0.94.12
181     * Renamed Changelog ChangeLog, and moved up to top-level directory
182     * Next 3 items due in part or whole thanks to
183     Liam Widdowson
184     * when printf'ing a pid type, force to int, because it could be
185     something else on other platforms. Should probably change it to
186     a long, and use that.
187     * backported chroot commandline support from 0.95
188     * backported support for strdup, strstr, alphasort, and scandir
189     from 0.95
190     * Fixed src/Makefile.in -- it didn't remove index_dir.o
191     * backport create_temporary_file from 0.95
192     (instead of using tmpnam)
193     * Allow non-standard date format 31 September 2000 23:59:59 GMT
194     Patch by Landon Curt Noll
195     * Skip whitespace before HTTP/major.minor
196     Adapted patch from Landon Curt Noll
197     * open /dev/null first thing (affects chrooting)
198     * properly handle sigalrm -- use sigalrm_flag and sigalrm_run
199     instead of handling the signal in the signal handler
200     * update manpage slightly
201     * send 400 BAD Request when resource does not start with '/'
202     * add grp.h to boa.h's includes -- remove from boa.c and config.c
203     * removed duplicate header includes from boa.c, config.c, get.c,
204     ip.c, request.c, response.c
205     * factor out creating the server socket and dropping privs
206     into create_server_socket and drop_privs
207     * type all functions in boa.c (except main) as static
208     * set umask after opening /dev/null
209     * tie stdin/stdout to /dev/null before commandline parse
210     * removed old, unused chroot code
211     * move builds_needs_escape earlier in the startup
212     * move fork later in the startup
213     * type all c_set_* as static in config.c
214     * don't bother trying to change uid/gid (or error if the
215     requested uid/gid doesn't exist) if not UID 0
216     * return more appropriate error code when foo.html gives
217     access denied, but foo.html.gz gives some other error
218     (essentially report error associated with foo.html, not foo.html.gz)
219     * send NOT Implemented when an unknown method is attempted
220     * always attempt a 32k read right before close
221     (stopgap until blackhole can be merged)
222     * allow more than 1 space in logline between method, resource,
223     and http version
224     * don't use inline functions
225     * update configure.in so that autoconf 2.50 doesn't complain (as much)
226     * properly use VPATH and srcdir according to autoconf docs
227     * change curly-braces to parentheses in Makefilein
228     * use $^ instead of manually listing the dependencies in Makefile.in
229     * remove tests section in Makefile.in
230     * write tags not TAGS in Makefile.in
231     * Add gethostbyname and inet_aton to function checks
232     * Add code from 0.95 which checks for socket in -lsocket,
233     inet_aton in -lresolv, and gethost{by}name in -lnsl
234     * Also remove broken bc-based "how big is an unsigned int" checks:
235     assume minimum of 32 bits and check in escape.c at runtime.
236     * Added new file: README.chroot.solaris, based on a
237     modified version by Liam Widdowson
238     * Add check_struct_for.m4, which allows us to check a structure
239     for a member (found at http://www.gnu.org/software/ac-archive/
240     authored by Wes Hardaker
241     * Call "aclocal -I ." to rebuild aclocal.m4
242     * Using new check-struct-for-member autoconf macro, check
243     for tm_gmtoff and tm_zone in struct tm -- useful in
244     portability tests for localtime.
245     * Also check sockaddr_in for structure sin_len so we can set
246     it properly.
247     * index_dir.c (which ends up in boa_indexer) can now be compiled
248     with USE_LOCALTIME, and if so, it will report the local time
249     using the timezone name. Otherwise it uses UTC time and UTC
250     timezone designation.
251     * fix buglet in mmap_cache.c which shows up when under
252     heavy load by many different files.
253     Found and squashed by Michal Kara
254     * normalize paths on Aliases, log files, server root, dirmaker
255     This makes sure that paths are 'absolute'
256     * don't generate DOCUMENT_ROOT or SERVER_ROOT,
257     CGIs have no business knowing that information
258     * if CGI, chdir to the cgi's root path
259     Bug found by Matt Callaway
260     * remove ChrootPath and PidFile directives from the parser
261     (they aren't used anyway)
262     * keep track of maximum file descriptor in use to optimize call
263     to select()
264     * apply IPv6 patch from Jari Korva
265     * optimize keep-alive copy data routine
266     * try to use memcpy instead of strcpy/strcat in more places (alias.c)
267     * update .depend file
268     * use fcntl + GET_FL to get a file descriptor's flags, then
269     add or remove only the bits we want to set. This prevents
270     accidentally setting or unsettings bits we don't have anything
271     to do with inadvertantly. (removed, at least temporarily.
272     Show me a system where it is needed -- LRD)
273     * make sure to call FD_ZERO when we handle a restart
274     * in read.c, don't call boa_perror on read failure -- socket is
275     dead or messed up anyway, no reason to try to write to it.
276     * explicit .SUFFIXES in Makefile.in
277     * boa.objdump target added
278     * use @MAKE_SET@ (for when $(MAKE) != "make")
279     * add -Wundef -Wwrite-strings -Wredundant-decls -Winline to GCC_FLAGS
280     * change Paul Phillips' and Larry Doolittle's emails in source
281     * add --disable-debug, --enable-profile, --with-dmalloc, and --with-efence
282     * test for failed-but-return-was-successful setuid:
283     http://www.securityfocus.com/bid/1322
284     * use _exit not exit in CGI child
285     * always place new keepalive request on blocked list, we can't be
286     sure of the state of the active list, and since enqueue places
287     things at the *front* of the list, it doesn't do us much good
288     to place the new request on the active list anyway.
289     * update some Copyright statements for 2002
290     * When comparing the uri to an alias, only compare if
291     the uri length is greater than or equal to the length of the alias
292     * in init_script_alias, make sure to check for document_root before
293     trying to use it
294     * script_name is now just a copy of the request, rather
295     than some complicated variation on the pathname
296     * change the way the CGI environment is handled.
297     Now, it is allocated at request allocation time, and exists
298     throughout the life of the structure.
299     * check memory allocations, etc.. when creating the static
300     CGI environment and when making new CGI environment variables
301     * wait until process_option_end to call unescape_uri, clean_pathname,
302     and translate_uri
303     * remove debian package information
304     * move RedHat packaging information to contrib
305     * remove tests -- they weren't usable anyway
306     * add some new hash routines, and use djb2 (a variant on a
307     hash algorithm popularized by Dan J. Bernstein)
308     * a side-effect of the new hash routines is a bugfix,
309     involving negative return values from hash routines.
310     This has been fixed.
311     * add a routine, show_hash_stats, which is called with other
312     statistical output via sigalarm
313     * remove some duplicate prototypes from config.c
314     * make simple_itoa take an unsigned int
315     * try to make NOBLOCK handling in compat.h compatible with Solaris
316     * make sure to update current_time before calling signal handlers
317     * alter primary loop to make sure that select gets called even
318     when there are requests that are not blocking, and call fdset_update
319     and process_requests (when appropriate) after signal handlers but
320     before select to make sure that blocked requests are still handled
321     by select after a sighup. (Thanks to Karl Olsen)
322     * pull select loop into select.c
323     * poll server socket once per active connection
324     * add send_r_service_unavailable and use it when appropriate
325     * state uptime in seconds at normal program termination
326     * include sys/fcntl.h if it is found by configure
327     * fix POST bug where a content-length < 0 would cause Boa to
328     consume its full share of CPU until killed
329     Bug report by Landon Curt Noll
330     * add CGIPath configuration variable
331     based upon a patch by Landon Curt Noll
332     * add function boa_atoi, which wraps atoi, but does not
333     accept negative values. Additionally, it checks to make sure
334     the converted value and the original value are the same, avoiding
335     issues like "124.3" -> "123" and "123abc" -=> "123".
336     Either a value is an int or it isn't - no middle ground.
337     * use boa_atoi to convert content-length from client.
338     * add new #define - SINGLE_POST_LIMIT_DEFAULT, which defines
339     (in bytes) the *default* single_post_limit.
340     * single_post_limit is now in bytes.
341     * when adding aliases, only "normalize" paths that start
342     with "./" - this is a departure from previous behavior
343     * add "?" to the list of characters that it is safe to leave unescaped
344     * clean up Makefile.in of no-longer-pertinent comments
345     * add send_r_bad_gateway and use it
346     * tie stderr to either cgi_log_fd or devnullfd - either way
347     make sure stderr is a valid filehandle before cgi execution
348     * cgi_env is no longer allocated, it's part of the struct now
349     * fix bug in CgiPath logic
350     * when unable to allocate memory for an environment variable, log it
351     * add clear_common_env, which de-allocates the cgi_common_env stuff
352     [NEVER USE THIS outside of a terminal signal handler!]
353     * don't be so wasteful of memory in normalize_path
354     * adapted fix for alias expansion from Brieuc Jeunhomme
355    
356     ** Changes from 0.94.10.1 to 0.94.11
357     * use LIBS in Makefile.in (which propagates from autoconf)
358     * properly free memory allocated by scandir in index_dir.c
359     * rearrange some header files and includes
360     * on reads and writes, don't check for -1, check for < 0
361     * include fix by William Meadows
362     for escape.c which fixes segfaults due to improper allocation
363     * above fix by William Meadows no longer needed;
364     escape.c and escape.h rewritten by Larry Doolittle -- requires
365     at least 32 bit words, but is correct (jdn's 1st attempt was faulty)
366    
367     ** Changes from 0.94.10 to 0.94.10.1
368     * Actually update the SERVER_VERSION in src/defines.h
369    
370     ** Changes from 0.94.9 to 0.94.10
371     * Fixes escaping rules
372     * Fixes segfault when directory_index is undefined and
373     directory needs to be generated
374     * adds dummy signal handlers for SIGUSR1 and SIGUSR2 (Closes SF #425921)
375     * Update documentation regarding mime.types (Closes Debian #69991)
376     * Make sure documentation builds (Closes Debian #110818)
377    
378     ** Changes from 0.94.8.3 to 0.94.9
379     * src/Makefile.in updated to take CFLAGS, LIBS, and LDFLAGS
380     from autoconf
381     * Update escaping rules with latest RFC
382     * unescape_uri skips fragments and also stop parsing at '?'
383     * Don't accept fd over FD_SETSIZE in request.c:get_request
384     * use backported documentation from 0.95
385     * make sure POST fd gets closed even on client cancel
386     * use backported index_dir.c from 0.95
387     * support subdirectories in ScriptAlias directories
388     * add SinglePostLimit (int, in Kilobytes) to config system
389     * check for ENOSPC on body write
390     * use environment variable TMP (or "/tmp" if not available),
391     and chdir there when boa exits.
392     * add 1-time-only hack to make a 32kB read at the end of a request
393     on POST or PUT
394     * close unused file descriptors (/dev/null in boa.c, and the
395     unused part of the pipes call in cgi.c)
396     * made Makefile.in VPATH happy
397    
398     ** Changes from 0.94.8.2 to 0.94.8.3
399     * Move unescape_uri *before* clean_pathname to prevent
400     encoding of / and .. in pathname
401     * wrap execution of GUNZIP in cgi.c with #ifdef GUNZIP
402     * stop parsing when fragment found in URL ('#')
403    
404     ** Changes from 0.94.8.1 to 0.94.8.2
405     * close pipes[1] in child and generate HTTP_REFERER environment
406     variable in cgi.c
407     * Minor changes to the Debian package
408    
409     ** Changes from 0.94.8 to 0.94.8.1
410     * Change umask call from (umask(0600)) to (umask(~0600))
411    
412     ** Changes from 0.94.7 to 0.94.8
413     * Fix major thinko in temp file permissions
414     * unlink temporary file immediately following creation
415     * implement maximum # of active connections at 10 less than RLIMIT_NOFILE
416     to avoid or eliminate crashes resulting from running out of
417     file descriptors
418     * Fix thinko in POST
419    
420     ** Changes from 0.94.6 to 0.94.7
421     * STDIN and STDOUT are now tied to /dev/null
422     * sets PATH_MAX to 2048 if not defined (for Hurd)
423     * core dumps (should never happen) would be located in /tmp
424     * alter behavior when select gets a EBADF
425     * add translation for the \" char -> &quot;
426     * remove use of sys_errlist. Use perror.
427     * better makedist.sh (still a stupid program though)
428    
429     ** Changes from 0.94.5 to 0.94.6
430     * Removed doc++ commenting
431     * Removed erroneous debugging statments
432     * Move some stuff out of config.c (read_config_file) to boa.c
433     * Altered some of fixup_server_root()
434     * Bug fix in get.c re: automatic gunzip
435     * Added some stubs for chroot code (*not* ready yet)
436    
437     ** Changes from 0.94.4 to 0.94.5
438     * Alteration of most of the comments and such for doc++ use
439     * Fixed buffer overflow in alias.c
440     * Fixed buffer underflow in util.c
441    
442     ** Changes from 0.94.3 to 0.94.4
443     * Better escaping of data to user, both for HTTP headers and HTML body
444     * Proper escaping of output in CGI example perl scripts
445    
446     ** Changes from 0.94.0 to 0.94.2
447     * Fixed obnoxious pipeline bug
448     * Fixed (sorta) a compilation/core bug for *BSD systems
449     Original code by Thomas Neumann
450     * Moved to GPLv2
451     * Changed manpage to section 8
452     * boa.sgml now references a .png file instead of evil .gif
453    
454     ** Changes from 0.93.19.2 to 0.94.0
455     * Added UseGMT to the configuration parser
456     * util.c commonlog now logs in Apache-style commonlog time format
457     * Remove SO_SNDBUF on-start message
458    
459     ** Changes from 0.93.19 to 0.93.19.2
460     * Changed to combined log (from NCSA access_log format) ala Drew Streib
461     * Altered POST cgi code to handle bug in Netscape
462     * SO_SNDBUF changes by Larry
463    
464     ** Changes from 0.93.17.2 to 0.93.19 (all 0.93.18.x changes inclusive)
465     * Update of some copyright statements for 99
466     * Replacement of sprintf with strlen/memcpy or strcpy/strcat
467     wherever possible
468     * Significant rearrangement in alias.c, minor functional differences
469     (some CGI environment variables handled differently)
470     * Removal of die function. Replace with log_err_mesg and exit.
471     * initial IPv6 stubs and support
472     * Move #include "config.h" to top of boa.h where it will do some good
473     * Stubs and functions for strstr and strdup
474     * Seperation of buffer code into it's own file
475     * Significant changes to cgi.c et al (cgi_header.c, etc...)
476     * Speed patches by removal of "extra" calls to time(): Use global variable!
477     * pipelining changes... it works now.
478     * require content-length from clients (ala rfc1945)
479     * alter body_read and body_write to work more efficiently with known content-length
480     * move read(2) part to *after* parsing...
481     * added support for additional header message in send_redirect_temp
482     * change use of NO_ZERO_FILL_LENGTH to offsetof() use
483     * Remove SO_REUSEADDR setting on each client socket, Paul Saab
484     * Avoid SO_SNDBUF setting if possible
485     * Large quantities of otherwise not-insignificant changes
486    
487     ** Changes from 0.93.17.2 to 0.93.17.3
488     * Put on-the-fly directories back in, stripped down from the 0.92 version
489     * Fixed DocumentRoot, ServerAdmin and ServerName null-value handling in
490     CGI environment generation
491     * Fixed argument order in Script* directives (bug introduced in 0.93.17.2)
492     * Got rid of MAX_CGI_VARS because it was not being used consistently, or
493     for that matter, at all, really.
494     * Added some more FASCIST_LOGGING to cgi.c
495     * Minor mmap patch by LRD for request.c
496    
497     ** Changes from 0.93.17.1 to 0.93.17.2
498     * Added "Listen" directive for server bind address, as most recently
499     suggested by David N. Welton
500     * Put virtualhost feature in, was experimental in 0.92q
501    
502     ** Changes from 0.93.16.2 to 0.93.17.1
503     * New config file parser (supposed to be more maintainable) (LRD)
504     * Support for "|command" and ":host:port" syntax for logfiles (untested) (LRD)
505    
506     ** Changes for the 0.93 version **
507     * Huge quantities of changes
508     * keepalive Bugfix in 0.93.16.2 by Jon Nelson
509     report by Craig Silverstein of Google fame.
510     * patch for config.h by Craig Silverstein
511     * fixed "Parent Directory" problem in boa_indexer for title "/"
512     (Debian bug #36165)
513     * More Craig Silverstein
514     modifications, namely:
515     ErrorLog (if omitted, print to stderr)
516     DocumentRoot (if omitted, can only server user-dir files)
517     DirectoryIndex (if omitted, always use DirectoryMaker)
518     MimeTypes (if omitted, don't load -- users can use AddType instead)
519    
520    
521     ** Changes from v0.92o to v0.92p **
522    
523     * Documented misbehavior of CGI, SIGHUP, short aliases, stale dircache.
524     * Documented how to patch signals.c for use on SunOS.
525     * Closed file descriptor leak when redirecting a bare directory URL to
526     one with an appended "/".
527     * Closed potential file descriptor leak if errors encountered generating
528     on-the-fly index.
529     * Cleaned up include file handling to be simultaneously compatible with
530     Linux, SunOS, HP-UX, and AIX.
531     * Supress message body for codes 302, 400, 403, 404, 500, and 501 if
532     incoming request is "HEAD".
533    
534     ** Changes from v0.91 to v0.92o **
535     (0.92o released 27 December, 1996)
536    
537     * Maintenance handover from Paul Phillips to Larry Doolittle
538     * Changed (char)NULL to '\0'
539     * Cleaned up signal handler prototypes in signals.c
540     * Modified handling of CGI environment variable PATH_TRANSLATED,
541     should now work the same as NCSA.
542     * More conservative buffer size in add_cgi_env()
543     * Build argv list for a CGI script according to spec
544     * Speedup process_header_line, eliminate potential memory leak
545     * Occasional spelling fixes and lint removal
546     * Added REMOTE_PORT env var for CGI scripts, to allow easy ident lookups
547     * Changed rfc822 time format
548     * Log timeouts and broken connections
549     * Fix mime suffix handling for filenames with multiple "."s
550     * Initialize conn->time_last, fixes bug with rapid-fire connections
551     * Performance tweak to req_write()
552     * Changed http_version from float to char[8]
553     * Rewrote on-the-fly directory generation; it works now
554     * Added user configurable dircache directory in boa.conf
555     * Fixed "simple" response bugs, including incorrect CGI handling
556     * Keepalive (HTTP/1.1 draft) support, mostly by Jon Nelson
557     * Close data_fd in 304 Not Modified flow of control
558     * Switch socket flags to non-blocking before cgi handoff
559     * Try to handle errno properly in the face of multiple errors
560     * Close fd's of all other transactions before cgi handoff
561     * Move real work for sighup and sigchld out of signal handler
562     * Fix free(req->cgi_env) in request.c
563     * Response message cleanup - better match to HTML-2.0 DTD
564     * Experimental Virtual Host code from Russ Nelson
565     * Expand buffer for escaped URI in init_get()
566     * SIGTERM triggers lame duck mode until all pending transactions complete
567     * Close and unlink temp file for POST in parent process
568    
569     ** Changes from v0.90 to v0.91 **
570    
571     * Cleaned up main while loop
572     * Optimized request line parsing
573     * Added state machine for header reads -- necessary to deal wtih
574     possibility of obtaining header data in multiple reads. This
575     also allows interactive use of server.
576     * Added 500/501 return codes for various conditions
577    
578     ** v0.90 **
579    
580     * Initial release
581    

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