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Revision 1.49.2.2 - (hide annotations)
Mon Dec 16 10:02:18 2002 UTC (18 years, 9 months ago) by nmav
Branch: hydra_0_1_0_patches
Changes since 1.49.2.1: +2 -2 lines
*** empty log message ***

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

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