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Revision 1.49.2.7 - (hide annotations)
Tue Jan 7 16:16:14 2003 UTC (18 years, 6 months ago) by nmav
Branch: hydra_0_1_0_patches
Changes since 1.49.2.6: +1 -0 lines
HTTP/1.1 sessions are not closed by default.

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

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