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Revision 1.52 - (hide annotations)
Mon Nov 3 10:59:45 2003 UTC (17 years, 11 months ago) by nmav
Branch: MAIN
CVS Tags: hydra_0_1_4
Changes since 1.51: +2 -1 lines
ported to gnutls 0.9.x and some other minor fixes.

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

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