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Revision 1.54 - (hide annotations)
Sat Jul 24 17:35:37 2004 UTC (17 years, 3 months ago) by nmav
Branch: MAIN
CVS Tags: hydra_0_1_6
Changes since 1.53: +5 -0 lines
* Some changes to support the new PHP REQUEST_STATUS environment
  variable.
* Some fixes for gnutls.

1 nmav 1.54 ** Changes from 0.1.5 to 0.1.6 - 24/07/2004
2     * Some changes to support the new PHP REQUEST_STATUS environment
3     variable.
4     * Some fixes for gnutls.
5    
6 nmav 1.53 ** Changes from 0.1.4 to 0.1.5 - 03/04/2004
7     * Added dependency on gnutls 1.0.9
8    
9 nmav 1.52 ** Changes from 0.1.3 to 0.1.4 - 03/11/2003
10 nmav 1.51 * Better large file support (now uses the included autoconf macros)
11 nmav 1.52 * Added dependency on gnutls 0.9.5
12 nmav 1.51
13 nmav 1.50 ** Changes from 0.1.2 to 0.1.3 - 20/01/2003
14     * Added DefaultCharset configuration directive. The default
15     character set given, will be appended to all text mime types.
16     * Corrected bug in KeepAlive usage in HTTP/1.1, which made the
17     server to ignore the value sent by the client.
18     * CGIAction can now be used even if HIC CGIs are disabled.
19     * Some optimizations in HTTP header parsing.
20     * Added a more complete mime.types in examples/ contributed by
21     <voidnull@qnet.pl>.
22     * Added the MaxSSLConnections configuration directive.
23     * Two mutexes are used in accept to allow parallel accepts
24     of SSL and plain connections.
25     * Added Dependency on gnutls 0.8.0.
26    
27     ** Changes from 0.1.1 to 0.1.2 - 08/01/2003
28     * Allow running the server as root, if explicitly stated in
29     configuration file. Patch by James Harr <james@grickle.org>
30     * Better pthreads detection.
31     * Outputs to error log if non executable CGIs are found.
32     * Does not close HTTP/1.1 connections by default.
33     * The current behavour is to demand the Host header in HTTP/1.1
34     requests.
35     * Added support for CGIAction CGIs. There are just like CGIs
36     but they are not executed. They are parsed using a given program.
37     * Added init script for redhat in contrib/redhat/rc.hydra,
38     contributed by <voidnull@qnet.pl>.
39    
40     ** Changes from 0.1.0 to 0.1.1 - 17/12/2002
41     * Corrected bug in Keep-Alive mode when SSL or TLS was enabled.
42     * Fixed unexpected timeout in first connection on an idle server.
43    
44 nmav 1.49 ** Changes from 0.0.10 to 0.1.0 - 16/11/2002
45     * No changes. This is the final release by me --Nikos
46    
47 nmav 1.48 ** Changes from 0.0.9 to 0.0.10 - 08/11/2002
48 nmav 1.47 * Corrected bug in error logging.
49     * Use the TMPDIR environment variable instead of TMP to get
50     the temporary directory.
51    
52 nmav 1.46 ** Changes from 0.0.8 to 0.0.9 - 27/10/2002
53 nmav 1.42 * Long offsets are not used by default.
54     * Use of pipes instead of temporary files, if the post data sent
55     are less than PIPE_BUF.
56 nmav 1.44 * More consistent logging. The server's hostname or "unknown"
57 nmav 1.43 are prepended to the log message.
58 nmav 1.44 * Corrected redirection/aliases behaviour, to match the documented one.
59 nmav 1.45 * SSLParamsRefresh was renamed to MaintenanceInterval and is more
60     generic, since it includes some server cleanups.
61     * Added file access control lists per virtual host. Based on patch for
62     Boa by Peter Korsgaard <jacmet@sunsite.dk>
63 nmav 1.46 * Added the ability to disable HIC threads by using 0 in the
64     HICThreads configuration directive.
65     * Hydra now uses poll by default. Select is available using the --with-select
66     configure option.
67 nmav 1.42
68 nmav 1.41 ** Changes from 0.0.7 to 0.0.8 - 25/10/2002
69 nmav 1.36 * Better pthread detection.
70 nmav 1.40 * Better detection of dlopen call.
71 nmav 1.37 * Some changes to compile in gcc 2.95
72 nmav 1.40 * Added support for FreeBSD's sendfile (untested).
73 nmav 1.38 [Ported from Boa 0.94.14rc1]
74     * add new state, IOSHUFFLE, which utilizes sendfile (or
75     emulates it using the request's buffer, otherwise)
76     * make the default socket size 32K. The client_stream_size stays constant
77     at 8K, and the new 'buffer' size is 4K
78     Note also that the new code uses the "default" socket buffer size
79     it obtains with the first accept()ed socket.
80     * make default behavior be to leave stderr alone, but tie it
81     to cgilog otherwise
82 nmav 1.40 * add [optional, Linux-only] check for sendfile system call
83 nmav 1.38 * use --disable-sendfile to disable sendfile support
84     sendfile support for files > 100K is default, now.
85     It's significantly faster and easier than the alternative
86     * umask ~0770 before exec
87     * tie stdout to the access_log, unless there is no access_log,
88     in which case tie it to /dev/null
89     * use sensible defaults for umask (077) and (027 for CGI)
90     * add and document new parameters (CGILog and CGIumask)
91     * vast improvements to the cgi-test.cgi program, by Jon Nelson
92     and Landon Curt Noll.
93     * next 3 items by Don Mahurin (patches modified somewhat):
94     * pidfile patch
95     * default mime_types patch
96     * NCSA environment environment variables wrapped in
97     #ifdef USE_NCSA_CGI_ENV
98     * fix some escaping issues with the directory indexer
99     (Ulf Harnhammar)
100     * backport poll support from 0.95
101 nmav 1.36
102 nmav 1.35 ** Changes from 0.0.6 to 0.0.7 - 10/10/2002
103 nmav 1.26 * Added support for large files in 32 bit systems.
104 nmav 1.27 * Added support for SSL_* variables in CGIs.
105 nmav 1.28 * Added options in configuration file, to request and verify
106     a client certificate.
107 nmav 1.34 * The headers of HIC-CGIs are now parsed by the server.
108 nmav 1.33 * Corrected behavour in SIGHUP signal handling, to reread
109 nmav 1.29 the SSL related variables.
110 nmav 1.33 * Children and HIC threads are now killed using a signal, to avoid
111     unexpected errors, and memory leaks.
112 nmav 1.26
113 nmav 1.24 ** Changes from 0.0.5 to 0.0.6 - 03/10/2002
114 nmav 1.21 * Compatibility functions are now automatically included in hydra, if
115     they are not found by the configure script.
116 nmav 1.22 * Replaced the included scandir function, with the one in libc.
117 nmav 1.23 * Fixed code, which compiled fine with gcc 3.2, but didn't compile at
118 nmav 1.22 all, with any other compiler!
119 nmav 1.23 * Improved the MaxConnections directive semantics.
120 nmav 1.25 * Added a very primitive mime.types file in examples/ directory.
121 nmav 1.21
122 nmav 1.20 ** Changes from 0.0.4 to 0.0.5 - 02/10/2002
123 nmav 1.18 * If a requested CGI is not accesible then send 404 not found, instead
124     of trying to execute it.
125 nmav 1.19 * Corrected several stuff in HIC CGI handler. This allows Cookies,
126     POST data and Queries to work properly.
127 nmav 1.18
128 nmav 1.17 ** Changes from 0.0.3 to 0.0.4 - 30/09/2002
129 nmav 1.14 * Added support for If-Range, If-Match, If-None-Match HTTP/1.1 header
130     fields. The server also generates ETag headers for static content using
131 nmav 1.15 the last modified field of the file, and the file size. This makes
132     Hydra cache friendly.
133 nmav 1.16 * Added support for multiple HIC threads. This gives a boost to script generation
134 nmav 1.22 since they are no longer generated sequentially.
135 nmav 1.14
136 nmav 1.13 ** Changes from 0.0.2 to 0.0.3 - 28/09/2002
137 nmav 1.11 * Added support for dynamic modules that handle CGIs
138     internally (HIC). That way Hydra can run PHP.
139     * Fixes in CGI execution. CGIs that are not passed from aliasing
140     functions now properly set PATH_INFO and PATH_TRANSLATED.
141     (Needs further cleanup).
142 nmav 1.12 * Cleaned up SSL support. Now hydra can be compiled even if gnutls
143     is not available.
144 nmav 1.11
145 nmav 1.9 ** Changes from Boa/0.94.13 to Hydra/0.0.2 - 26/09/2002
146 nmav 1.2 * Added support for SSL 3.0 and TLS 1.0 protocols.
147     * Added support for multiple CPU's by making the server
148     run over a pool of threads.
149     * Changed the file caching code. The mmap() calls are cached until
150     the mmap list table is full.
151     * Added support for HTTP/1.1 ranges.
152 nmav 1.4 * Added support for hostname based virtual hosting.
153 nmav 1.5 Also changed the semantics of Alias, ScriptAlias and Redirect, to
154     take advantage of the host based virtual hosting.
155 nmav 1.3 * Added support for the TCP_CORK tcp option in linux.
156     * Cleaned up the CGI handling (gunzip, indexer are treated as CGIs)
157 nmav 1.10 * Enhanced grammar to handle 3 and 4 argument options.
158 nmav 1.7 * Added support for multiple directory indexes.
159     * Dropped support for gunzip.
160 nmav 1.8 * Use automake to create the distribution.
161 nmav 1.2
162 nmav 1.1 ** Changes from 0.94.12 to 0.94.13
163     * Change many instances of log_error_mesg + exit to DIE macro
164     * Change all instance of log_error_mesg (without exit) to WARN macro
165     * do a much better job of checking return values from malloc and
166     especially strdup.
167     * check results of calling umask and getrlimit
168     * server_s is no longer a global int
169     * check results of fork via switch instead of if (fork())
170     * check for getopt.h and include it if found
171     * remove unused #defines, and add WARN macro, and replace
172     many calls to log_error_mesg(..) with WARN macro
173     * fix bug in get_commonlog_time where time_offset calculation was
174     the opposite of what it should be ('-' and '+' were swapped)
175     * fix compatability bug with old and newer versions of flex/yacc
176     * add check for AC_FUNC_MMAP to configure.in
177     * fix really lame thinko in normalize_path, which would prepend the
178     results of earlier calls to results from later calls
179     * Add MaxConnections, a configuration directive which allows the
180     user to specify the maximum number of connections that Boa will
181     accept concurrently.
182     * add SERVER_ADDR and REQUEST_URI to environment of CGI
183     * handle SIGBUS during writes of data that has been memory mapped
184     * minor optimization in select.c that prevents DEAD requests from
185     being added to the block set
186     * fix bug in CGI environment script_name - closes sf.net bug #576725
187     * make 'status' variable local to requests.c, not local to every file
188     by forgetting to declare 'extern' in globals.h :-|
189     * make getsockname non-fatal, and do it every time because we may
190     need it for the CGI
191     * some minor refactoring optimizations in hash.c
192    
193     ** Changes from 0.94.11 to 0.94.12
194     * Renamed Changelog ChangeLog, and moved up to top-level directory
195     * Next 3 items due in part or whole thanks to
196     Liam Widdowson
197     * when printf'ing a pid type, force to int, because it could be
198     something else on other platforms. Should probably change it to
199     a long, and use that.
200     * backported chroot commandline support from 0.95
201     * backported support for strdup, strstr, alphasort, and scandir
202     from 0.95
203     * Fixed src/Makefile.in -- it didn't remove index_dir.o
204     * backport create_temporary_file from 0.95
205     (instead of using tmpnam)
206     * Allow non-standard date format 31 September 2000 23:59:59 GMT
207     Patch by Landon Curt Noll
208     * Skip whitespace before HTTP/major.minor
209     Adapted patch from Landon Curt Noll
210     * open /dev/null first thing (affects chrooting)
211     * properly handle sigalrm -- use sigalrm_flag and sigalrm_run
212     instead of handling the signal in the signal handler
213     * update manpage slightly
214     * send 400 BAD Request when resource does not start with '/'
215     * add grp.h to boa.h's includes -- remove from boa.c and config.c
216     * removed duplicate header includes from boa.c, config.c, get.c,
217     ip.c, request.c, response.c
218     * factor out creating the server socket and dropping privs
219     into create_server_socket and drop_privs
220     * type all functions in boa.c (except main) as static
221     * set umask after opening /dev/null
222     * tie stdin/stdout to /dev/null before commandline parse
223     * removed old, unused chroot code
224     * move builds_needs_escape earlier in the startup
225     * move fork later in the startup
226     * type all c_set_* as static in config.c
227     * don't bother trying to change uid/gid (or error if the
228     requested uid/gid doesn't exist) if not UID 0
229     * return more appropriate error code when foo.html gives
230     access denied, but foo.html.gz gives some other error
231     (essentially report error associated with foo.html, not foo.html.gz)
232     * send NOT Implemented when an unknown method is attempted
233     * always attempt a 32k read right before close
234     (stopgap until blackhole can be merged)
235     * allow more than 1 space in logline between method, resource,
236     and http version
237     * don't use inline functions
238     * update configure.in so that autoconf 2.50 doesn't complain (as much)
239     * properly use VPATH and srcdir according to autoconf docs
240     * change curly-braces to parentheses in Makefilein
241     * use $^ instead of manually listing the dependencies in Makefile.in
242     * remove tests section in Makefile.in
243     * write tags not TAGS in Makefile.in
244     * Add gethostbyname and inet_aton to function checks
245     * Add code from 0.95 which checks for socket in -lsocket,
246     inet_aton in -lresolv, and gethost{by}name in -lnsl
247     * Also remove broken bc-based "how big is an unsigned int" checks:
248     assume minimum of 32 bits and check in escape.c at runtime.
249     * Added new file: README.chroot.solaris, based on a
250     modified version by Liam Widdowson
251     * Add check_struct_for.m4, which allows us to check a structure
252     for a member (found at http://www.gnu.org/software/ac-archive/
253     authored by Wes Hardaker
254     * Call "aclocal -I ." to rebuild aclocal.m4
255     * Using new check-struct-for-member autoconf macro, check
256     for tm_gmtoff and tm_zone in struct tm -- useful in
257     portability tests for localtime.
258     * Also check sockaddr_in for structure sin_len so we can set
259     it properly.
260     * index_dir.c (which ends up in boa_indexer) can now be compiled
261     with USE_LOCALTIME, and if so, it will report the local time
262     using the timezone name. Otherwise it uses UTC time and UTC
263     timezone designation.
264     * fix buglet in mmap_cache.c which shows up when under
265     heavy load by many different files.
266     Found and squashed by Michal Kara
267     * normalize paths on Aliases, log files, server root, dirmaker
268     This makes sure that paths are 'absolute'
269     * don't generate DOCUMENT_ROOT or SERVER_ROOT,
270     CGIs have no business knowing that information
271     * if CGI, chdir to the cgi's root path
272     Bug found by Matt Callaway
273     * remove ChrootPath and PidFile directives from the parser
274     (they aren't used anyway)
275     * keep track of maximum file descriptor in use to optimize call
276     to select()
277     * apply IPv6 patch from Jari Korva
278     * optimize keep-alive copy data routine
279     * try to use memcpy instead of strcpy/strcat in more places (alias.c)
280     * update .depend file
281     * use fcntl + GET_FL to get a file descriptor's flags, then
282     add or remove only the bits we want to set. This prevents
283     accidentally setting or unsettings bits we don't have anything
284     to do with inadvertantly. (removed, at least temporarily.
285     Show me a system where it is needed -- LRD)
286     * make sure to call FD_ZERO when we handle a restart
287     * in read.c, don't call boa_perror on read failure -- socket is
288     dead or messed up anyway, no reason to try to write to it.
289     * explicit .SUFFIXES in Makefile.in
290     * boa.objdump target added
291     * use @MAKE_SET@ (for when $(MAKE) != "make")
292     * add -Wundef -Wwrite-strings -Wredundant-decls -Winline to GCC_FLAGS
293     * change Paul Phillips' and Larry Doolittle's emails in source
294     * add --disable-debug, --enable-profile, --with-dmalloc, and --with-efence
295     * test for failed-but-return-was-successful setuid:
296     http://www.securityfocus.com/bid/1322
297     * use _exit not exit in CGI child
298     * always place new keepalive request on blocked list, we can't be
299     sure of the state of the active list, and since enqueue places
300     things at the *front* of the list, it doesn't do us much good
301     to place the new request on the active list anyway.
302     * update some Copyright statements for 2002
303     * When comparing the uri to an alias, only compare if
304     the uri length is greater than or equal to the length of the alias
305     * in init_script_alias, make sure to check for document_root before
306     trying to use it
307     * script_name is now just a copy of the request, rather
308     than some complicated variation on the pathname
309     * change the way the CGI environment is handled.
310     Now, it is allocated at request allocation time, and exists
311     throughout the life of the structure.
312     * check memory allocations, etc.. when creating the static
313     CGI environment and when making new CGI environment variables
314     * wait until process_option_end to call unescape_uri, clean_pathname,
315     and translate_uri
316     * remove debian package information
317     * move RedHat packaging information to contrib
318     * remove tests -- they weren't usable anyway
319     * add some new hash routines, and use djb2 (a variant on a
320     hash algorithm popularized by Dan J. Bernstein)
321     * a side-effect of the new hash routines is a bugfix,
322     involving negative return values from hash routines.
323     This has been fixed.
324     * add a routine, show_hash_stats, which is called with other
325     statistical output via sigalarm
326     * remove some duplicate prototypes from config.c
327     * make simple_itoa take an unsigned int
328     * try to make NOBLOCK handling in compat.h compatible with Solaris
329     * make sure to update current_time before calling signal handlers
330     * alter primary loop to make sure that select gets called even
331     when there are requests that are not blocking, and call fdset_update
332     and process_requests (when appropriate) after signal handlers but
333     before select to make sure that blocked requests are still handled
334     by select after a sighup. (Thanks to Karl Olsen)
335     * pull select loop into select.c
336     * poll server socket once per active connection
337     * add send_r_service_unavailable and use it when appropriate
338     * state uptime in seconds at normal program termination
339     * include sys/fcntl.h if it is found by configure
340     * fix POST bug where a content-length < 0 would cause Boa to
341     consume its full share of CPU until killed
342     Bug report by Landon Curt Noll
343     * add CGIPath configuration variable
344     based upon a patch by Landon Curt Noll
345     * add function boa_atoi, which wraps atoi, but does not
346     accept negative values. Additionally, it checks to make sure
347     the converted value and the original value are the same, avoiding
348     issues like "124.3" -> "123" and "123abc" -=> "123".
349     Either a value is an int or it isn't - no middle ground.
350     * use boa_atoi to convert content-length from client.
351     * add new #define - SINGLE_POST_LIMIT_DEFAULT, which defines
352     (in bytes) the *default* single_post_limit.
353     * single_post_limit is now in bytes.
354     * when adding aliases, only "normalize" paths that start
355     with "./" - this is a departure from previous behavior
356     * add "?" to the list of characters that it is safe to leave unescaped
357     * clean up Makefile.in of no-longer-pertinent comments
358     * add send_r_bad_gateway and use it
359     * tie stderr to either cgi_log_fd or devnullfd - either way
360     make sure stderr is a valid filehandle before cgi execution
361     * cgi_env is no longer allocated, it's part of the struct now
362     * fix bug in CgiPath logic
363     * when unable to allocate memory for an environment variable, log it
364     * add clear_common_env, which de-allocates the cgi_common_env stuff
365     [NEVER USE THIS outside of a terminal signal handler!]
366     * don't be so wasteful of memory in normalize_path
367     * adapted fix for alias expansion from Brieuc Jeunhomme
368    
369     ** Changes from 0.94.10.1 to 0.94.11
370     * use LIBS in Makefile.in (which propagates from autoconf)
371     * properly free memory allocated by scandir in index_dir.c
372     * rearrange some header files and includes
373     * on reads and writes, don't check for -1, check for < 0
374     * include fix by William Meadows
375     for escape.c which fixes segfaults due to improper allocation
376     * above fix by William Meadows no longer needed;
377     escape.c and escape.h rewritten by Larry Doolittle -- requires
378     at least 32 bit words, but is correct (jdn's 1st attempt was faulty)
379    
380     ** Changes from 0.94.10 to 0.94.10.1
381     * Actually update the SERVER_VERSION in src/defines.h
382    
383     ** Changes from 0.94.9 to 0.94.10
384     * Fixes escaping rules
385     * Fixes segfault when directory_index is undefined and
386     directory needs to be generated
387     * adds dummy signal handlers for SIGUSR1 and SIGUSR2 (Closes SF #425921)
388     * Update documentation regarding mime.types (Closes Debian #69991)
389     * Make sure documentation builds (Closes Debian #110818)
390    
391     ** Changes from 0.94.8.3 to 0.94.9
392     * src/Makefile.in updated to take CFLAGS, LIBS, and LDFLAGS
393     from autoconf
394     * Update escaping rules with latest RFC
395     * unescape_uri skips fragments and also stop parsing at '?'
396     * Don't accept fd over FD_SETSIZE in request.c:get_request
397     * use backported documentation from 0.95
398     * make sure POST fd gets closed even on client cancel
399     * use backported index_dir.c from 0.95
400     * support subdirectories in ScriptAlias directories
401     * add SinglePostLimit (int, in Kilobytes) to config system
402     * check for ENOSPC on body write
403     * use environment variable TMP (or "/tmp" if not available),
404     and chdir there when boa exits.
405     * add 1-time-only hack to make a 32kB read at the end of a request
406     on POST or PUT
407     * close unused file descriptors (/dev/null in boa.c, and the
408     unused part of the pipes call in cgi.c)
409     * made Makefile.in VPATH happy
410    
411     ** Changes from 0.94.8.2 to 0.94.8.3
412     * Move unescape_uri *before* clean_pathname to prevent
413     encoding of / and .. in pathname
414     * wrap execution of GUNZIP in cgi.c with #ifdef GUNZIP
415     * stop parsing when fragment found in URL ('#')
416    
417     ** Changes from 0.94.8.1 to 0.94.8.2
418     * close pipes[1] in child and generate HTTP_REFERER environment
419     variable in cgi.c
420     * Minor changes to the Debian package
421    
422     ** Changes from 0.94.8 to 0.94.8.1
423     * Change umask call from (umask(0600)) to (umask(~0600))
424    
425     ** Changes from 0.94.7 to 0.94.8
426     * Fix major thinko in temp file permissions
427     * unlink temporary file immediately following creation
428     * implement maximum # of active connections at 10 less than RLIMIT_NOFILE
429     to avoid or eliminate crashes resulting from running out of
430     file descriptors
431     * Fix thinko in POST
432    
433     ** Changes from 0.94.6 to 0.94.7
434     * STDIN and STDOUT are now tied to /dev/null
435     * sets PATH_MAX to 2048 if not defined (for Hurd)
436     * core dumps (should never happen) would be located in /tmp
437     * alter behavior when select gets a EBADF
438     * add translation for the \" char -> &quot;
439     * remove use of sys_errlist. Use perror.
440     * better makedist.sh (still a stupid program though)
441    
442     ** Changes from 0.94.5 to 0.94.6
443     * Removed doc++ commenting
444     * Removed erroneous debugging statments
445     * Move some stuff out of config.c (read_config_file) to boa.c
446     * Altered some of fixup_server_root()
447     * Bug fix in get.c re: automatic gunzip
448     * Added some stubs for chroot code (*not* ready yet)
449    
450     ** Changes from 0.94.4 to 0.94.5
451     * Alteration of most of the comments and such for doc++ use
452     * Fixed buffer overflow in alias.c
453     * Fixed buffer underflow in util.c
454    
455     ** Changes from 0.94.3 to 0.94.4
456     * Better escaping of data to user, both for HTTP headers and HTML body
457     * Proper escaping of output in CGI example perl scripts
458    
459     ** Changes from 0.94.0 to 0.94.2
460     * Fixed obnoxious pipeline bug
461     * Fixed (sorta) a compilation/core bug for *BSD systems
462     Original code by Thomas Neumann
463     * Moved to GPLv2
464     * Changed manpage to section 8
465     * boa.sgml now references a .png file instead of evil .gif
466    
467     ** Changes from 0.93.19.2 to 0.94.0
468     * Added UseGMT to the configuration parser
469     * util.c commonlog now logs in Apache-style commonlog time format
470     * Remove SO_SNDBUF on-start message
471    
472     ** Changes from 0.93.19 to 0.93.19.2
473     * Changed to combined log (from NCSA access_log format) ala Drew Streib
474     * Altered POST cgi code to handle bug in Netscape
475     * SO_SNDBUF changes by Larry
476    
477     ** Changes from 0.93.17.2 to 0.93.19 (all 0.93.18.x changes inclusive)
478     * Update of some copyright statements for 99
479     * Replacement of sprintf with strlen/memcpy or strcpy/strcat
480     wherever possible
481     * Significant rearrangement in alias.c, minor functional differences
482     (some CGI environment variables handled differently)
483     * Removal of die function. Replace with log_err_mesg and exit.
484     * initial IPv6 stubs and support
485     * Move #include "config.h" to top of boa.h where it will do some good
486     * Stubs and functions for strstr and strdup
487     * Seperation of buffer code into it's own file
488     * Significant changes to cgi.c et al (cgi_header.c, etc...)
489     * Speed patches by removal of "extra" calls to time(): Use global variable!
490     * pipelining changes... it works now.
491     * require content-length from clients (ala rfc1945)
492     * alter body_read and body_write to work more efficiently with known content-length
493     * move read(2) part to *after* parsing...
494     * added support for additional header message in send_redirect_temp
495     * change use of NO_ZERO_FILL_LENGTH to offsetof() use
496     * Remove SO_REUSEADDR setting on each client socket, Paul Saab
497     * Avoid SO_SNDBUF setting if possible
498     * Large quantities of otherwise not-insignificant changes
499    
500     ** Changes from 0.93.17.2 to 0.93.17.3
501     * Put on-the-fly directories back in, stripped down from the 0.92 version
502     * Fixed DocumentRoot, ServerAdmin and ServerName null-value handling in
503     CGI environment generation
504     * Fixed argument order in Script* directives (bug introduced in 0.93.17.2)
505     * Got rid of MAX_CGI_VARS because it was not being used consistently, or
506     for that matter, at all, really.
507     * Added some more FASCIST_LOGGING to cgi.c
508     * Minor mmap patch by LRD for request.c
509    
510     ** Changes from 0.93.17.1 to 0.93.17.2
511     * Added "Listen" directive for server bind address, as most recently
512     suggested by David N. Welton
513     * Put virtualhost feature in, was experimental in 0.92q
514    
515     ** Changes from 0.93.16.2 to 0.93.17.1
516     * New config file parser (supposed to be more maintainable) (LRD)
517     * Support for "|command" and ":host:port" syntax for logfiles (untested) (LRD)
518    
519     ** Changes for the 0.93 version **
520     * Huge quantities of changes
521     * keepalive Bugfix in 0.93.16.2 by Jon Nelson
522     report by Craig Silverstein of Google fame.
523     * patch for config.h by Craig Silverstein
524     * fixed "Parent Directory" problem in boa_indexer for title "/"
525     (Debian bug #36165)
526     * More Craig Silverstein
527     modifications, namely:
528     ErrorLog (if omitted, print to stderr)
529     DocumentRoot (if omitted, can only server user-dir files)
530     DirectoryIndex (if omitted, always use DirectoryMaker)
531     MimeTypes (if omitted, don't load -- users can use AddType instead)
532    
533    
534     ** Changes from v0.92o to v0.92p **
535    
536     * Documented misbehavior of CGI, SIGHUP, short aliases, stale dircache.
537     * Documented how to patch signals.c for use on SunOS.
538     * Closed file descriptor leak when redirecting a bare directory URL to
539     one with an appended "/".
540     * Closed potential file descriptor leak if errors encountered generating
541     on-the-fly index.
542     * Cleaned up include file handling to be simultaneously compatible with
543     Linux, SunOS, HP-UX, and AIX.
544     * Supress message body for codes 302, 400, 403, 404, 500, and 501 if
545     incoming request is "HEAD".
546    
547     ** Changes from v0.91 to v0.92o **
548     (0.92o released 27 December, 1996)
549    
550     * Maintenance handover from Paul Phillips to Larry Doolittle
551     * Changed (char)NULL to '\0'
552     * Cleaned up signal handler prototypes in signals.c
553     * Modified handling of CGI environment variable PATH_TRANSLATED,
554     should now work the same as NCSA.
555     * More conservative buffer size in add_cgi_env()
556     * Build argv list for a CGI script according to spec
557     * Speedup process_header_line, eliminate potential memory leak
558     * Occasional spelling fixes and lint removal
559     * Added REMOTE_PORT env var for CGI scripts, to allow easy ident lookups
560     * Changed rfc822 time format
561     * Log timeouts and broken connections
562     * Fix mime suffix handling for filenames with multiple "."s
563     * Initialize conn->time_last, fixes bug with rapid-fire connections
564     * Performance tweak to req_write()
565     * Changed http_version from float to char[8]
566     * Rewrote on-the-fly directory generation; it works now
567     * Added user configurable dircache directory in boa.conf
568     * Fixed "simple" response bugs, including incorrect CGI handling
569     * Keepalive (HTTP/1.1 draft) support, mostly by Jon Nelson
570     * Close data_fd in 304 Not Modified flow of control
571     * Switch socket flags to non-blocking before cgi handoff
572     * Try to handle errno properly in the face of multiple errors
573     * Close fd's of all other transactions before cgi handoff
574     * Move real work for sighup and sigchld out of signal handler
575     * Fix free(req->cgi_env) in request.c
576     * Response message cleanup - better match to HTML-2.0 DTD
577     * Experimental Virtual Host code from Russ Nelson
578     * Expand buffer for escaped URI in init_get()
579     * SIGTERM triggers lame duck mode until all pending transactions complete
580     * Close and unlink temp file for POST in parent process
581    
582     ** Changes from v0.90 to v0.91 **
583    
584     * Cleaned up main while loop
585     * Optimized request line parsing
586     * Added state machine for header reads -- necessary to deal wtih
587     possibility of obtaining header data in multiple reads. This
588     also allows interactive use of server.
589     * Added 500/501 return codes for various conditions
590    
591     ** v0.90 **
592    
593     * Initial release
594    

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