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Revision 1.53 - (hide annotations)
Sat Apr 3 10:27:46 2004 UTC (17 years, 6 months ago) by nmav
Branch: MAIN
Changes since 1.52: +3 -0 lines
ported to the new gnutls 1.0.9

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

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