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Revision 1.51 - (hide annotations)
Sun Jan 26 11:25:39 2003 UTC (18 years, 8 months ago) by nmav
Branch: MAIN
Changes since 1.50: +3 -0 lines
Better large file support (now uses the included autoconf macros).
(++some indentation)

1 nmav 1.51 ** Changes from 0.1.3 to 0.2.0
2     * Better large file support (now uses the included autoconf macros)
3    
4 nmav 1.50 ** Changes from 0.1.2 to 0.1.3 - 20/01/2003
5     * Added DefaultCharset configuration directive. The default
6     character set given, will be appended to all text mime types.
7     * Corrected bug in KeepAlive usage in HTTP/1.1, which made the
8     server to ignore the value sent by the client.
9     * CGIAction can now be used even if HIC CGIs are disabled.
10     * Some optimizations in HTTP header parsing.
11     * Added a more complete mime.types in examples/ contributed by
12     <voidnull@qnet.pl>.
13     * Added the MaxSSLConnections configuration directive.
14     * Two mutexes are used in accept to allow parallel accepts
15     of SSL and plain connections.
16     * Added Dependency on gnutls 0.8.0.
17    
18     ** Changes from 0.1.1 to 0.1.2 - 08/01/2003
19     * Allow running the server as root, if explicitly stated in
20     configuration file. Patch by James Harr <james@grickle.org>
21     * Better pthreads detection.
22     * Outputs to error log if non executable CGIs are found.
23     * Does not close HTTP/1.1 connections by default.
24     * The current behavour is to demand the Host header in HTTP/1.1
25     requests.
26     * Added support for CGIAction CGIs. There are just like CGIs
27     but they are not executed. They are parsed using a given program.
28     * Added init script for redhat in contrib/redhat/rc.hydra,
29     contributed by <voidnull@qnet.pl>.
30    
31     ** Changes from 0.1.0 to 0.1.1 - 17/12/2002
32     * Corrected bug in Keep-Alive mode when SSL or TLS was enabled.
33     * Fixed unexpected timeout in first connection on an idle server.
34    
35 nmav 1.49 ** Changes from 0.0.10 to 0.1.0 - 16/11/2002
36     * No changes. This is the final release by me --Nikos
37    
38 nmav 1.48 ** Changes from 0.0.9 to 0.0.10 - 08/11/2002
39 nmav 1.47 * Corrected bug in error logging.
40     * Use the TMPDIR environment variable instead of TMP to get
41     the temporary directory.
42    
43 nmav 1.46 ** Changes from 0.0.8 to 0.0.9 - 27/10/2002
44 nmav 1.42 * Long offsets are not used by default.
45     * Use of pipes instead of temporary files, if the post data sent
46     are less than PIPE_BUF.
47 nmav 1.44 * More consistent logging. The server's hostname or "unknown"
48 nmav 1.43 are prepended to the log message.
49 nmav 1.44 * Corrected redirection/aliases behaviour, to match the documented one.
50 nmav 1.45 * SSLParamsRefresh was renamed to MaintenanceInterval and is more
51     generic, since it includes some server cleanups.
52     * Added file access control lists per virtual host. Based on patch for
53     Boa by Peter Korsgaard <jacmet@sunsite.dk>
54 nmav 1.46 * Added the ability to disable HIC threads by using 0 in the
55     HICThreads configuration directive.
56     * Hydra now uses poll by default. Select is available using the --with-select
57     configure option.
58 nmav 1.42
59 nmav 1.41 ** Changes from 0.0.7 to 0.0.8 - 25/10/2002
60 nmav 1.36 * Better pthread detection.
61 nmav 1.40 * Better detection of dlopen call.
62 nmav 1.37 * Some changes to compile in gcc 2.95
63 nmav 1.40 * Added support for FreeBSD's sendfile (untested).
64 nmav 1.38 [Ported from Boa 0.94.14rc1]
65     * add new state, IOSHUFFLE, which utilizes sendfile (or
66     emulates it using the request's buffer, otherwise)
67     * make the default socket size 32K. The client_stream_size stays constant
68     at 8K, and the new 'buffer' size is 4K
69     Note also that the new code uses the "default" socket buffer size
70     it obtains with the first accept()ed socket.
71     * make default behavior be to leave stderr alone, but tie it
72     to cgilog otherwise
73 nmav 1.40 * add [optional, Linux-only] check for sendfile system call
74 nmav 1.38 * use --disable-sendfile to disable sendfile support
75     sendfile support for files > 100K is default, now.
76     It's significantly faster and easier than the alternative
77     * umask ~0770 before exec
78     * tie stdout to the access_log, unless there is no access_log,
79     in which case tie it to /dev/null
80     * use sensible defaults for umask (077) and (027 for CGI)
81     * add and document new parameters (CGILog and CGIumask)
82     * vast improvements to the cgi-test.cgi program, by Jon Nelson
83     and Landon Curt Noll.
84     * next 3 items by Don Mahurin (patches modified somewhat):
85     * pidfile patch
86     * default mime_types patch
87     * NCSA environment environment variables wrapped in
88     #ifdef USE_NCSA_CGI_ENV
89     * fix some escaping issues with the directory indexer
90     (Ulf Harnhammar)
91     * backport poll support from 0.95
92 nmav 1.36
93 nmav 1.35 ** Changes from 0.0.6 to 0.0.7 - 10/10/2002
94 nmav 1.26 * Added support for large files in 32 bit systems.
95 nmav 1.27 * Added support for SSL_* variables in CGIs.
96 nmav 1.28 * Added options in configuration file, to request and verify
97     a client certificate.
98 nmav 1.34 * The headers of HIC-CGIs are now parsed by the server.
99 nmav 1.33 * Corrected behavour in SIGHUP signal handling, to reread
100 nmav 1.29 the SSL related variables.
101 nmav 1.33 * Children and HIC threads are now killed using a signal, to avoid
102     unexpected errors, and memory leaks.
103 nmav 1.26
104 nmav 1.24 ** Changes from 0.0.5 to 0.0.6 - 03/10/2002
105 nmav 1.21 * Compatibility functions are now automatically included in hydra, if
106     they are not found by the configure script.
107 nmav 1.22 * Replaced the included scandir function, with the one in libc.
108 nmav 1.23 * Fixed code, which compiled fine with gcc 3.2, but didn't compile at
109 nmav 1.22 all, with any other compiler!
110 nmav 1.23 * Improved the MaxConnections directive semantics.
111 nmav 1.25 * Added a very primitive mime.types file in examples/ directory.
112 nmav 1.21
113 nmav 1.20 ** Changes from 0.0.4 to 0.0.5 - 02/10/2002
114 nmav 1.18 * If a requested CGI is not accesible then send 404 not found, instead
115     of trying to execute it.
116 nmav 1.19 * Corrected several stuff in HIC CGI handler. This allows Cookies,
117     POST data and Queries to work properly.
118 nmav 1.18
119 nmav 1.17 ** Changes from 0.0.3 to 0.0.4 - 30/09/2002
120 nmav 1.14 * Added support for If-Range, If-Match, If-None-Match HTTP/1.1 header
121     fields. The server also generates ETag headers for static content using
122 nmav 1.15 the last modified field of the file, and the file size. This makes
123     Hydra cache friendly.
124 nmav 1.16 * Added support for multiple HIC threads. This gives a boost to script generation
125 nmav 1.22 since they are no longer generated sequentially.
126 nmav 1.14
127 nmav 1.13 ** Changes from 0.0.2 to 0.0.3 - 28/09/2002
128 nmav 1.11 * Added support for dynamic modules that handle CGIs
129     internally (HIC). That way Hydra can run PHP.
130     * Fixes in CGI execution. CGIs that are not passed from aliasing
131     functions now properly set PATH_INFO and PATH_TRANSLATED.
132     (Needs further cleanup).
133 nmav 1.12 * Cleaned up SSL support. Now hydra can be compiled even if gnutls
134     is not available.
135 nmav 1.11
136 nmav 1.9 ** Changes from Boa/0.94.13 to Hydra/0.0.2 - 26/09/2002
137 nmav 1.2 * Added support for SSL 3.0 and TLS 1.0 protocols.
138     * Added support for multiple CPU's by making the server
139     run over a pool of threads.
140     * Changed the file caching code. The mmap() calls are cached until
141     the mmap list table is full.
142     * Added support for HTTP/1.1 ranges.
143 nmav 1.4 * Added support for hostname based virtual hosting.
144 nmav 1.5 Also changed the semantics of Alias, ScriptAlias and Redirect, to
145     take advantage of the host based virtual hosting.
146 nmav 1.3 * Added support for the TCP_CORK tcp option in linux.
147     * Cleaned up the CGI handling (gunzip, indexer are treated as CGIs)
148 nmav 1.10 * Enhanced grammar to handle 3 and 4 argument options.
149 nmav 1.7 * Added support for multiple directory indexes.
150     * Dropped support for gunzip.
151 nmav 1.8 * Use automake to create the distribution.
152 nmav 1.2
153 nmav 1.1 ** Changes from 0.94.12 to 0.94.13
154     * Change many instances of log_error_mesg + exit to DIE macro
155     * Change all instance of log_error_mesg (without exit) to WARN macro
156     * do a much better job of checking return values from malloc and
157     especially strdup.
158     * check results of calling umask and getrlimit
159     * server_s is no longer a global int
160     * check results of fork via switch instead of if (fork())
161     * check for getopt.h and include it if found
162     * remove unused #defines, and add WARN macro, and replace
163     many calls to log_error_mesg(..) with WARN macro
164     * fix bug in get_commonlog_time where time_offset calculation was
165     the opposite of what it should be ('-' and '+' were swapped)
166     * fix compatability bug with old and newer versions of flex/yacc
167     * add check for AC_FUNC_MMAP to configure.in
168     * fix really lame thinko in normalize_path, which would prepend the
169     results of earlier calls to results from later calls
170     * Add MaxConnections, a configuration directive which allows the
171     user to specify the maximum number of connections that Boa will
172     accept concurrently.
173     * add SERVER_ADDR and REQUEST_URI to environment of CGI
174     * handle SIGBUS during writes of data that has been memory mapped
175     * minor optimization in select.c that prevents DEAD requests from
176     being added to the block set
177     * fix bug in CGI environment script_name - closes sf.net bug #576725
178     * make 'status' variable local to requests.c, not local to every file
179     by forgetting to declare 'extern' in globals.h :-|
180     * make getsockname non-fatal, and do it every time because we may
181     need it for the CGI
182     * some minor refactoring optimizations in hash.c
183    
184     ** Changes from 0.94.11 to 0.94.12
185     * Renamed Changelog ChangeLog, and moved up to top-level directory
186     * Next 3 items due in part or whole thanks to
187     Liam Widdowson
188     * when printf'ing a pid type, force to int, because it could be
189     something else on other platforms. Should probably change it to
190     a long, and use that.
191     * backported chroot commandline support from 0.95
192     * backported support for strdup, strstr, alphasort, and scandir
193     from 0.95
194     * Fixed src/Makefile.in -- it didn't remove index_dir.o
195     * backport create_temporary_file from 0.95
196     (instead of using tmpnam)
197     * Allow non-standard date format 31 September 2000 23:59:59 GMT
198     Patch by Landon Curt Noll
199     * Skip whitespace before HTTP/major.minor
200     Adapted patch from Landon Curt Noll
201     * open /dev/null first thing (affects chrooting)
202     * properly handle sigalrm -- use sigalrm_flag and sigalrm_run
203     instead of handling the signal in the signal handler
204     * update manpage slightly
205     * send 400 BAD Request when resource does not start with '/'
206     * add grp.h to boa.h's includes -- remove from boa.c and config.c
207     * removed duplicate header includes from boa.c, config.c, get.c,
208     ip.c, request.c, response.c
209     * factor out creating the server socket and dropping privs
210     into create_server_socket and drop_privs
211     * type all functions in boa.c (except main) as static
212     * set umask after opening /dev/null
213     * tie stdin/stdout to /dev/null before commandline parse
214     * removed old, unused chroot code
215     * move builds_needs_escape earlier in the startup
216     * move fork later in the startup
217     * type all c_set_* as static in config.c
218     * don't bother trying to change uid/gid (or error if the
219     requested uid/gid doesn't exist) if not UID 0
220     * return more appropriate error code when foo.html gives
221     access denied, but foo.html.gz gives some other error
222     (essentially report error associated with foo.html, not foo.html.gz)
223     * send NOT Implemented when an unknown method is attempted
224     * always attempt a 32k read right before close
225     (stopgap until blackhole can be merged)
226     * allow more than 1 space in logline between method, resource,
227     and http version
228     * don't use inline functions
229     * update configure.in so that autoconf 2.50 doesn't complain (as much)
230     * properly use VPATH and srcdir according to autoconf docs
231     * change curly-braces to parentheses in Makefilein
232     * use $^ instead of manually listing the dependencies in Makefile.in
233     * remove tests section in Makefile.in
234     * write tags not TAGS in Makefile.in
235     * Add gethostbyname and inet_aton to function checks
236     * Add code from 0.95 which checks for socket in -lsocket,
237     inet_aton in -lresolv, and gethost{by}name in -lnsl
238     * Also remove broken bc-based "how big is an unsigned int" checks:
239     assume minimum of 32 bits and check in escape.c at runtime.
240     * Added new file: README.chroot.solaris, based on a
241     modified version by Liam Widdowson
242     * Add check_struct_for.m4, which allows us to check a structure
243     for a member (found at http://www.gnu.org/software/ac-archive/
244     authored by Wes Hardaker
245     * Call "aclocal -I ." to rebuild aclocal.m4
246     * Using new check-struct-for-member autoconf macro, check
247     for tm_gmtoff and tm_zone in struct tm -- useful in
248     portability tests for localtime.
249     * Also check sockaddr_in for structure sin_len so we can set
250     it properly.
251     * index_dir.c (which ends up in boa_indexer) can now be compiled
252     with USE_LOCALTIME, and if so, it will report the local time
253     using the timezone name. Otherwise it uses UTC time and UTC
254     timezone designation.
255     * fix buglet in mmap_cache.c which shows up when under
256     heavy load by many different files.
257     Found and squashed by Michal Kara
258     * normalize paths on Aliases, log files, server root, dirmaker
259     This makes sure that paths are 'absolute'
260     * don't generate DOCUMENT_ROOT or SERVER_ROOT,
261     CGIs have no business knowing that information
262     * if CGI, chdir to the cgi's root path
263     Bug found by Matt Callaway
264     * remove ChrootPath and PidFile directives from the parser
265     (they aren't used anyway)
266     * keep track of maximum file descriptor in use to optimize call
267     to select()
268     * apply IPv6 patch from Jari Korva
269     * optimize keep-alive copy data routine
270     * try to use memcpy instead of strcpy/strcat in more places (alias.c)
271     * update .depend file
272     * use fcntl + GET_FL to get a file descriptor's flags, then
273     add or remove only the bits we want to set. This prevents
274     accidentally setting or unsettings bits we don't have anything
275     to do with inadvertantly. (removed, at least temporarily.
276     Show me a system where it is needed -- LRD)
277     * make sure to call FD_ZERO when we handle a restart
278     * in read.c, don't call boa_perror on read failure -- socket is
279     dead or messed up anyway, no reason to try to write to it.
280     * explicit .SUFFIXES in Makefile.in
281     * boa.objdump target added
282     * use @MAKE_SET@ (for when $(MAKE) != "make")
283     * add -Wundef -Wwrite-strings -Wredundant-decls -Winline to GCC_FLAGS
284     * change Paul Phillips' and Larry Doolittle's emails in source
285     * add --disable-debug, --enable-profile, --with-dmalloc, and --with-efence
286     * test for failed-but-return-was-successful setuid:
287     http://www.securityfocus.com/bid/1322
288     * use _exit not exit in CGI child
289     * always place new keepalive request on blocked list, we can't be
290     sure of the state of the active list, and since enqueue places
291     things at the *front* of the list, it doesn't do us much good
292     to place the new request on the active list anyway.
293     * update some Copyright statements for 2002
294     * When comparing the uri to an alias, only compare if
295     the uri length is greater than or equal to the length of the alias
296     * in init_script_alias, make sure to check for document_root before
297     trying to use it
298     * script_name is now just a copy of the request, rather
299     than some complicated variation on the pathname
300     * change the way the CGI environment is handled.
301     Now, it is allocated at request allocation time, and exists
302     throughout the life of the structure.
303     * check memory allocations, etc.. when creating the static
304     CGI environment and when making new CGI environment variables
305     * wait until process_option_end to call unescape_uri, clean_pathname,
306     and translate_uri
307     * remove debian package information
308     * move RedHat packaging information to contrib
309     * remove tests -- they weren't usable anyway
310     * add some new hash routines, and use djb2 (a variant on a
311     hash algorithm popularized by Dan J. Bernstein)
312     * a side-effect of the new hash routines is a bugfix,
313     involving negative return values from hash routines.
314     This has been fixed.
315     * add a routine, show_hash_stats, which is called with other
316     statistical output via sigalarm
317     * remove some duplicate prototypes from config.c
318     * make simple_itoa take an unsigned int
319     * try to make NOBLOCK handling in compat.h compatible with Solaris
320     * make sure to update current_time before calling signal handlers
321     * alter primary loop to make sure that select gets called even
322     when there are requests that are not blocking, and call fdset_update
323     and process_requests (when appropriate) after signal handlers but
324     before select to make sure that blocked requests are still handled
325     by select after a sighup. (Thanks to Karl Olsen)
326     * pull select loop into select.c
327     * poll server socket once per active connection
328     * add send_r_service_unavailable and use it when appropriate
329     * state uptime in seconds at normal program termination
330     * include sys/fcntl.h if it is found by configure
331     * fix POST bug where a content-length < 0 would cause Boa to
332     consume its full share of CPU until killed
333     Bug report by Landon Curt Noll
334     * add CGIPath configuration variable
335     based upon a patch by Landon Curt Noll
336     * add function boa_atoi, which wraps atoi, but does not
337     accept negative values. Additionally, it checks to make sure
338     the converted value and the original value are the same, avoiding
339     issues like "124.3" -> "123" and "123abc" -=> "123".
340     Either a value is an int or it isn't - no middle ground.
341     * use boa_atoi to convert content-length from client.
342     * add new #define - SINGLE_POST_LIMIT_DEFAULT, which defines
343     (in bytes) the *default* single_post_limit.
344     * single_post_limit is now in bytes.
345     * when adding aliases, only "normalize" paths that start
346     with "./" - this is a departure from previous behavior
347     * add "?" to the list of characters that it is safe to leave unescaped
348     * clean up Makefile.in of no-longer-pertinent comments
349     * add send_r_bad_gateway and use it
350     * tie stderr to either cgi_log_fd or devnullfd - either way
351     make sure stderr is a valid filehandle before cgi execution
352     * cgi_env is no longer allocated, it's part of the struct now
353     * fix bug in CgiPath logic
354     * when unable to allocate memory for an environment variable, log it
355     * add clear_common_env, which de-allocates the cgi_common_env stuff
356     [NEVER USE THIS outside of a terminal signal handler!]
357     * don't be so wasteful of memory in normalize_path
358     * adapted fix for alias expansion from Brieuc Jeunhomme
359    
360     ** Changes from 0.94.10.1 to 0.94.11
361     * use LIBS in Makefile.in (which propagates from autoconf)
362     * properly free memory allocated by scandir in index_dir.c
363     * rearrange some header files and includes
364     * on reads and writes, don't check for -1, check for < 0
365     * include fix by William Meadows
366     for escape.c which fixes segfaults due to improper allocation
367     * above fix by William Meadows no longer needed;
368     escape.c and escape.h rewritten by Larry Doolittle -- requires
369     at least 32 bit words, but is correct (jdn's 1st attempt was faulty)
370    
371     ** Changes from 0.94.10 to 0.94.10.1
372     * Actually update the SERVER_VERSION in src/defines.h
373    
374     ** Changes from 0.94.9 to 0.94.10
375     * Fixes escaping rules
376     * Fixes segfault when directory_index is undefined and
377     directory needs to be generated
378     * adds dummy signal handlers for SIGUSR1 and SIGUSR2 (Closes SF #425921)
379     * Update documentation regarding mime.types (Closes Debian #69991)
380     * Make sure documentation builds (Closes Debian #110818)
381    
382     ** Changes from 0.94.8.3 to 0.94.9
383     * src/Makefile.in updated to take CFLAGS, LIBS, and LDFLAGS
384     from autoconf
385     * Update escaping rules with latest RFC
386     * unescape_uri skips fragments and also stop parsing at '?'
387     * Don't accept fd over FD_SETSIZE in request.c:get_request
388     * use backported documentation from 0.95
389     * make sure POST fd gets closed even on client cancel
390     * use backported index_dir.c from 0.95
391     * support subdirectories in ScriptAlias directories
392     * add SinglePostLimit (int, in Kilobytes) to config system
393     * check for ENOSPC on body write
394     * use environment variable TMP (or "/tmp" if not available),
395     and chdir there when boa exits.
396     * add 1-time-only hack to make a 32kB read at the end of a request
397     on POST or PUT
398     * close unused file descriptors (/dev/null in boa.c, and the
399     unused part of the pipes call in cgi.c)
400     * made Makefile.in VPATH happy
401    
402     ** Changes from 0.94.8.2 to 0.94.8.3
403     * Move unescape_uri *before* clean_pathname to prevent
404     encoding of / and .. in pathname
405     * wrap execution of GUNZIP in cgi.c with #ifdef GUNZIP
406     * stop parsing when fragment found in URL ('#')
407    
408     ** Changes from 0.94.8.1 to 0.94.8.2
409     * close pipes[1] in child and generate HTTP_REFERER environment
410     variable in cgi.c
411     * Minor changes to the Debian package
412    
413     ** Changes from 0.94.8 to 0.94.8.1
414     * Change umask call from (umask(0600)) to (umask(~0600))
415    
416     ** Changes from 0.94.7 to 0.94.8
417     * Fix major thinko in temp file permissions
418     * unlink temporary file immediately following creation
419     * implement maximum # of active connections at 10 less than RLIMIT_NOFILE
420     to avoid or eliminate crashes resulting from running out of
421     file descriptors
422     * Fix thinko in POST
423    
424     ** Changes from 0.94.6 to 0.94.7
425     * STDIN and STDOUT are now tied to /dev/null
426     * sets PATH_MAX to 2048 if not defined (for Hurd)
427     * core dumps (should never happen) would be located in /tmp
428     * alter behavior when select gets a EBADF
429     * add translation for the \" char -> &quot;
430     * remove use of sys_errlist. Use perror.
431     * better makedist.sh (still a stupid program though)
432    
433     ** Changes from 0.94.5 to 0.94.6
434     * Removed doc++ commenting
435     * Removed erroneous debugging statments
436     * Move some stuff out of config.c (read_config_file) to boa.c
437     * Altered some of fixup_server_root()
438     * Bug fix in get.c re: automatic gunzip
439     * Added some stubs for chroot code (*not* ready yet)
440    
441     ** Changes from 0.94.4 to 0.94.5
442     * Alteration of most of the comments and such for doc++ use
443     * Fixed buffer overflow in alias.c
444     * Fixed buffer underflow in util.c
445    
446     ** Changes from 0.94.3 to 0.94.4
447     * Better escaping of data to user, both for HTTP headers and HTML body
448     * Proper escaping of output in CGI example perl scripts
449    
450     ** Changes from 0.94.0 to 0.94.2
451     * Fixed obnoxious pipeline bug
452     * Fixed (sorta) a compilation/core bug for *BSD systems
453     Original code by Thomas Neumann
454     * Moved to GPLv2
455     * Changed manpage to section 8
456     * boa.sgml now references a .png file instead of evil .gif
457    
458     ** Changes from 0.93.19.2 to 0.94.0
459     * Added UseGMT to the configuration parser
460     * util.c commonlog now logs in Apache-style commonlog time format
461     * Remove SO_SNDBUF on-start message
462    
463     ** Changes from 0.93.19 to 0.93.19.2
464     * Changed to combined log (from NCSA access_log format) ala Drew Streib
465     * Altered POST cgi code to handle bug in Netscape
466     * SO_SNDBUF changes by Larry
467    
468     ** Changes from 0.93.17.2 to 0.93.19 (all 0.93.18.x changes inclusive)
469     * Update of some copyright statements for 99
470     * Replacement of sprintf with strlen/memcpy or strcpy/strcat
471     wherever possible
472     * Significant rearrangement in alias.c, minor functional differences
473     (some CGI environment variables handled differently)
474     * Removal of die function. Replace with log_err_mesg and exit.
475     * initial IPv6 stubs and support
476     * Move #include "config.h" to top of boa.h where it will do some good
477     * Stubs and functions for strstr and strdup
478     * Seperation of buffer code into it's own file
479     * Significant changes to cgi.c et al (cgi_header.c, etc...)
480     * Speed patches by removal of "extra" calls to time(): Use global variable!
481     * pipelining changes... it works now.
482     * require content-length from clients (ala rfc1945)
483     * alter body_read and body_write to work more efficiently with known content-length
484     * move read(2) part to *after* parsing...
485     * added support for additional header message in send_redirect_temp
486     * change use of NO_ZERO_FILL_LENGTH to offsetof() use
487     * Remove SO_REUSEADDR setting on each client socket, Paul Saab
488     * Avoid SO_SNDBUF setting if possible
489     * Large quantities of otherwise not-insignificant changes
490    
491     ** Changes from 0.93.17.2 to 0.93.17.3
492     * Put on-the-fly directories back in, stripped down from the 0.92 version
493     * Fixed DocumentRoot, ServerAdmin and ServerName null-value handling in
494     CGI environment generation
495     * Fixed argument order in Script* directives (bug introduced in 0.93.17.2)
496     * Got rid of MAX_CGI_VARS because it was not being used consistently, or
497     for that matter, at all, really.
498     * Added some more FASCIST_LOGGING to cgi.c
499     * Minor mmap patch by LRD for request.c
500    
501     ** Changes from 0.93.17.1 to 0.93.17.2
502     * Added "Listen" directive for server bind address, as most recently
503     suggested by David N. Welton
504     * Put virtualhost feature in, was experimental in 0.92q
505    
506     ** Changes from 0.93.16.2 to 0.93.17.1
507     * New config file parser (supposed to be more maintainable) (LRD)
508     * Support for "|command" and ":host:port" syntax for logfiles (untested) (LRD)
509    
510     ** Changes for the 0.93 version **
511     * Huge quantities of changes
512     * keepalive Bugfix in 0.93.16.2 by Jon Nelson
513     report by Craig Silverstein of Google fame.
514     * patch for config.h by Craig Silverstein
515     * fixed "Parent Directory" problem in boa_indexer for title "/"
516     (Debian bug #36165)
517     * More Craig Silverstein
518     modifications, namely:
519     ErrorLog (if omitted, print to stderr)
520     DocumentRoot (if omitted, can only server user-dir files)
521     DirectoryIndex (if omitted, always use DirectoryMaker)
522     MimeTypes (if omitted, don't load -- users can use AddType instead)
523    
524    
525     ** Changes from v0.92o to v0.92p **
526    
527     * Documented misbehavior of CGI, SIGHUP, short aliases, stale dircache.
528     * Documented how to patch signals.c for use on SunOS.
529     * Closed file descriptor leak when redirecting a bare directory URL to
530     one with an appended "/".
531     * Closed potential file descriptor leak if errors encountered generating
532     on-the-fly index.
533     * Cleaned up include file handling to be simultaneously compatible with
534     Linux, SunOS, HP-UX, and AIX.
535     * Supress message body for codes 302, 400, 403, 404, 500, and 501 if
536     incoming request is "HEAD".
537    
538     ** Changes from v0.91 to v0.92o **
539     (0.92o released 27 December, 1996)
540    
541     * Maintenance handover from Paul Phillips to Larry Doolittle
542     * Changed (char)NULL to '\0'
543     * Cleaned up signal handler prototypes in signals.c
544     * Modified handling of CGI environment variable PATH_TRANSLATED,
545     should now work the same as NCSA.
546     * More conservative buffer size in add_cgi_env()
547     * Build argv list for a CGI script according to spec
548     * Speedup process_header_line, eliminate potential memory leak
549     * Occasional spelling fixes and lint removal
550     * Added REMOTE_PORT env var for CGI scripts, to allow easy ident lookups
551     * Changed rfc822 time format
552     * Log timeouts and broken connections
553     * Fix mime suffix handling for filenames with multiple "."s
554     * Initialize conn->time_last, fixes bug with rapid-fire connections
555     * Performance tweak to req_write()
556     * Changed http_version from float to char[8]
557     * Rewrote on-the-fly directory generation; it works now
558     * Added user configurable dircache directory in boa.conf
559     * Fixed "simple" response bugs, including incorrect CGI handling
560     * Keepalive (HTTP/1.1 draft) support, mostly by Jon Nelson
561     * Close data_fd in 304 Not Modified flow of control
562     * Switch socket flags to non-blocking before cgi handoff
563     * Try to handle errno properly in the face of multiple errors
564     * Close fd's of all other transactions before cgi handoff
565     * Move real work for sighup and sigchld out of signal handler
566     * Fix free(req->cgi_env) in request.c
567     * Response message cleanup - better match to HTML-2.0 DTD
568     * Experimental Virtual Host code from Russ Nelson
569     * Expand buffer for escaped URI in init_get()
570     * SIGTERM triggers lame duck mode until all pending transactions complete
571     * Close and unlink temp file for POST in parent process
572    
573     ** Changes from v0.90 to v0.91 **
574    
575     * Cleaned up main while loop
576     * Optimized request line parsing
577     * Added state machine for header reads -- necessary to deal wtih
578     possibility of obtaining header data in multiple reads. This
579     also allows interactive use of server.
580     * Added 500/501 return codes for various conditions
581    
582     ** v0.90 **
583    
584     * Initial release
585    

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