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Revision 1.49.2.9 - (hide annotations)
Wed Jan 8 17:10:10 2003 UTC (18 years, 9 months ago) by nmav
Branch: hydra_0_1_0_patches
Changes since 1.49.2.8: +3 -1 lines
Renamed HICActiondirective to CGIAction. The server now requires the Host header field in HTTP/1.1 requests.

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

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