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Revision 1.49.2.8 - (show annotations)
Tue Jan 7 17:08:18 2003 UTC (18 years, 6 months ago) by nmav
Branch: hydra_0_1_0_patches
Changes since 1.49.2.7: +2 -0 lines
Added support for HICAction CGIs. There are just like CGIs but they are not executed. They are parsed using a given program.

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

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