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Revision 1.49.2.6 - (hide annotations)
Mon Jan 6 11:55:59 2003 UTC (18 years, 6 months ago) by nmav
Branch: hydra_0_1_0_patches
Changes since 1.49.2.5: +1 -0 lines
*** empty log message ***

1 nmav 1.49.2.4 ** Changes from 0.1.1 to 0.1.2 -
2     * Allow running the server as root, if explicitly stated in
3     configuration file.
4 nmav 1.49.2.5 * Better pthreads detection.
5 nmav 1.49.2.6 * Outputs to error log if non executable CGIs are found.
6 nmav 1.49.2.4
7 nmav 1.49.2.3 ** Changes from 0.1.0 to 0.1.1 - 17/12/2002
8 nmav 1.49.2.2 * Corrected bug in Keep-Alive mode when SSL or TLS was enabled.
9     * Fixed unexpected timeout in first connection on an idle server.
10 nmav 1.49.2.1
11 nmav 1.49 ** Changes from 0.0.10 to 0.1.0 - 16/11/2002
12     * No changes. This is the final release by me --Nikos
13    
14 nmav 1.48 ** Changes from 0.0.9 to 0.0.10 - 08/11/2002
15 nmav 1.47 * Corrected bug in error logging.
16     * Use the TMPDIR environment variable instead of TMP to get
17     the temporary directory.
18    
19 nmav 1.46 ** Changes from 0.0.8 to 0.0.9 - 27/10/2002
20 nmav 1.42 * Long offsets are not used by default.
21     * Use of pipes instead of temporary files, if the post data sent
22     are less than PIPE_BUF.
23 nmav 1.44 * More consistent logging. The server's hostname or "unknown"
24 nmav 1.43 are prepended to the log message.
25 nmav 1.44 * Corrected redirection/aliases behaviour, to match the documented one.
26 nmav 1.45 * SSLParamsRefresh was renamed to MaintenanceInterval and is more
27     generic, since it includes some server cleanups.
28     * Added file access control lists per virtual host. Based on patch for
29     Boa by Peter Korsgaard <jacmet@sunsite.dk>
30 nmav 1.46 * Added the ability to disable HIC threads by using 0 in the
31     HICThreads configuration directive.
32     * Hydra now uses poll by default. Select is available using the --with-select
33     configure option.
34 nmav 1.42
35 nmav 1.41 ** Changes from 0.0.7 to 0.0.8 - 25/10/2002
36 nmav 1.36 * Better pthread detection.
37 nmav 1.40 * Better detection of dlopen call.
38 nmav 1.37 * Some changes to compile in gcc 2.95
39 nmav 1.40 * Added support for FreeBSD's sendfile (untested).
40 nmav 1.38 [Ported from Boa 0.94.14rc1]
41     * add new state, IOSHUFFLE, which utilizes sendfile (or
42     emulates it using the request's buffer, otherwise)
43     * make the default socket size 32K. The client_stream_size stays constant
44     at 8K, and the new 'buffer' size is 4K
45     Note also that the new code uses the "default" socket buffer size
46     it obtains with the first accept()ed socket.
47     * make default behavior be to leave stderr alone, but tie it
48     to cgilog otherwise
49 nmav 1.40 * add [optional, Linux-only] check for sendfile system call
50 nmav 1.38 * use --disable-sendfile to disable sendfile support
51     sendfile support for files > 100K is default, now.
52     It's significantly faster and easier than the alternative
53     * umask ~0770 before exec
54     * tie stdout to the access_log, unless there is no access_log,
55     in which case tie it to /dev/null
56     * use sensible defaults for umask (077) and (027 for CGI)
57     * add and document new parameters (CGILog and CGIumask)
58     * vast improvements to the cgi-test.cgi program, by Jon Nelson
59     and Landon Curt Noll.
60     * next 3 items by Don Mahurin (patches modified somewhat):
61     * pidfile patch
62     * default mime_types patch
63     * NCSA environment environment variables wrapped in
64     #ifdef USE_NCSA_CGI_ENV
65     * fix some escaping issues with the directory indexer
66     (Ulf Harnhammar)
67     * backport poll support from 0.95
68 nmav 1.36
69 nmav 1.35 ** Changes from 0.0.6 to 0.0.7 - 10/10/2002
70 nmav 1.26 * Added support for large files in 32 bit systems.
71 nmav 1.27 * Added support for SSL_* variables in CGIs.
72 nmav 1.28 * Added options in configuration file, to request and verify
73     a client certificate.
74 nmav 1.34 * The headers of HIC-CGIs are now parsed by the server.
75 nmav 1.33 * Corrected behavour in SIGHUP signal handling, to reread
76 nmav 1.29 the SSL related variables.
77 nmav 1.33 * Children and HIC threads are now killed using a signal, to avoid
78     unexpected errors, and memory leaks.
79 nmav 1.26
80 nmav 1.24 ** Changes from 0.0.5 to 0.0.6 - 03/10/2002
81 nmav 1.21 * Compatibility functions are now automatically included in hydra, if
82     they are not found by the configure script.
83 nmav 1.22 * Replaced the included scandir function, with the one in libc.
84 nmav 1.23 * Fixed code, which compiled fine with gcc 3.2, but didn't compile at
85 nmav 1.22 all, with any other compiler!
86 nmav 1.23 * Improved the MaxConnections directive semantics.
87 nmav 1.25 * Added a very primitive mime.types file in examples/ directory.
88 nmav 1.21
89 nmav 1.20 ** Changes from 0.0.4 to 0.0.5 - 02/10/2002
90 nmav 1.18 * If a requested CGI is not accesible then send 404 not found, instead
91     of trying to execute it.
92 nmav 1.19 * Corrected several stuff in HIC CGI handler. This allows Cookies,
93     POST data and Queries to work properly.
94 nmav 1.18
95 nmav 1.17 ** Changes from 0.0.3 to 0.0.4 - 30/09/2002
96 nmav 1.14 * Added support for If-Range, If-Match, If-None-Match HTTP/1.1 header
97     fields. The server also generates ETag headers for static content using
98 nmav 1.15 the last modified field of the file, and the file size. This makes
99     Hydra cache friendly.
100 nmav 1.16 * Added support for multiple HIC threads. This gives a boost to script generation
101 nmav 1.22 since they are no longer generated sequentially.
102 nmav 1.14
103 nmav 1.13 ** Changes from 0.0.2 to 0.0.3 - 28/09/2002
104 nmav 1.11 * Added support for dynamic modules that handle CGIs
105     internally (HIC). That way Hydra can run PHP.
106     * Fixes in CGI execution. CGIs that are not passed from aliasing
107     functions now properly set PATH_INFO and PATH_TRANSLATED.
108     (Needs further cleanup).
109 nmav 1.12 * Cleaned up SSL support. Now hydra can be compiled even if gnutls
110     is not available.
111 nmav 1.11
112 nmav 1.9 ** Changes from Boa/0.94.13 to Hydra/0.0.2 - 26/09/2002
113 nmav 1.2 * Added support for SSL 3.0 and TLS 1.0 protocols.
114     * Added support for multiple CPU's by making the server
115     run over a pool of threads.
116     * Changed the file caching code. The mmap() calls are cached until
117     the mmap list table is full.
118     * Added support for HTTP/1.1 ranges.
119 nmav 1.4 * Added support for hostname based virtual hosting.
120 nmav 1.5 Also changed the semantics of Alias, ScriptAlias and Redirect, to
121     take advantage of the host based virtual hosting.
122 nmav 1.3 * Added support for the TCP_CORK tcp option in linux.
123     * Cleaned up the CGI handling (gunzip, indexer are treated as CGIs)
124 nmav 1.10 * Enhanced grammar to handle 3 and 4 argument options.
125 nmav 1.7 * Added support for multiple directory indexes.
126     * Dropped support for gunzip.
127 nmav 1.8 * Use automake to create the distribution.
128 nmav 1.2
129 nmav 1.1 ** Changes from 0.94.12 to 0.94.13
130     * Change many instances of log_error_mesg + exit to DIE macro
131     * Change all instance of log_error_mesg (without exit) to WARN macro
132     * do a much better job of checking return values from malloc and
133     especially strdup.
134     * check results of calling umask and getrlimit
135     * server_s is no longer a global int
136     * check results of fork via switch instead of if (fork())
137     * check for getopt.h and include it if found
138     * remove unused #defines, and add WARN macro, and replace
139     many calls to log_error_mesg(..) with WARN macro
140     * fix bug in get_commonlog_time where time_offset calculation was
141     the opposite of what it should be ('-' and '+' were swapped)
142     * fix compatability bug with old and newer versions of flex/yacc
143     * add check for AC_FUNC_MMAP to configure.in
144     * fix really lame thinko in normalize_path, which would prepend the
145     results of earlier calls to results from later calls
146     * Add MaxConnections, a configuration directive which allows the
147     user to specify the maximum number of connections that Boa will
148     accept concurrently.
149     * add SERVER_ADDR and REQUEST_URI to environment of CGI
150     * handle SIGBUS during writes of data that has been memory mapped
151     * minor optimization in select.c that prevents DEAD requests from
152     being added to the block set
153     * fix bug in CGI environment script_name - closes sf.net bug #576725
154     * make 'status' variable local to requests.c, not local to every file
155     by forgetting to declare 'extern' in globals.h :-|
156     * make getsockname non-fatal, and do it every time because we may
157     need it for the CGI
158     * some minor refactoring optimizations in hash.c
159    
160     ** Changes from 0.94.11 to 0.94.12
161     * Renamed Changelog ChangeLog, and moved up to top-level directory
162     * Next 3 items due in part or whole thanks to
163     Liam Widdowson
164     * when printf'ing a pid type, force to int, because it could be
165     something else on other platforms. Should probably change it to
166     a long, and use that.
167     * backported chroot commandline support from 0.95
168     * backported support for strdup, strstr, alphasort, and scandir
169     from 0.95
170     * Fixed src/Makefile.in -- it didn't remove index_dir.o
171     * backport create_temporary_file from 0.95
172     (instead of using tmpnam)
173     * Allow non-standard date format 31 September 2000 23:59:59 GMT
174     Patch by Landon Curt Noll
175     * Skip whitespace before HTTP/major.minor
176     Adapted patch from Landon Curt Noll
177     * open /dev/null first thing (affects chrooting)
178     * properly handle sigalrm -- use sigalrm_flag and sigalrm_run
179     instead of handling the signal in the signal handler
180     * update manpage slightly
181     * send 400 BAD Request when resource does not start with '/'
182     * add grp.h to boa.h's includes -- remove from boa.c and config.c
183     * removed duplicate header includes from boa.c, config.c, get.c,
184     ip.c, request.c, response.c
185     * factor out creating the server socket and dropping privs
186     into create_server_socket and drop_privs
187     * type all functions in boa.c (except main) as static
188     * set umask after opening /dev/null
189     * tie stdin/stdout to /dev/null before commandline parse
190     * removed old, unused chroot code
191     * move builds_needs_escape earlier in the startup
192     * move fork later in the startup
193     * type all c_set_* as static in config.c
194     * don't bother trying to change uid/gid (or error if the
195     requested uid/gid doesn't exist) if not UID 0
196     * return more appropriate error code when foo.html gives
197     access denied, but foo.html.gz gives some other error
198     (essentially report error associated with foo.html, not foo.html.gz)
199     * send NOT Implemented when an unknown method is attempted
200     * always attempt a 32k read right before close
201     (stopgap until blackhole can be merged)
202     * allow more than 1 space in logline between method, resource,
203     and http version
204     * don't use inline functions
205     * update configure.in so that autoconf 2.50 doesn't complain (as much)
206     * properly use VPATH and srcdir according to autoconf docs
207     * change curly-braces to parentheses in Makefilein
208     * use $^ instead of manually listing the dependencies in Makefile.in
209     * remove tests section in Makefile.in
210     * write tags not TAGS in Makefile.in
211     * Add gethostbyname and inet_aton to function checks
212     * Add code from 0.95 which checks for socket in -lsocket,
213     inet_aton in -lresolv, and gethost{by}name in -lnsl
214     * Also remove broken bc-based "how big is an unsigned int" checks:
215     assume minimum of 32 bits and check in escape.c at runtime.
216     * Added new file: README.chroot.solaris, based on a
217     modified version by Liam Widdowson
218     * Add check_struct_for.m4, which allows us to check a structure
219     for a member (found at http://www.gnu.org/software/ac-archive/
220     authored by Wes Hardaker
221     * Call "aclocal -I ." to rebuild aclocal.m4
222     * Using new check-struct-for-member autoconf macro, check
223     for tm_gmtoff and tm_zone in struct tm -- useful in
224     portability tests for localtime.
225     * Also check sockaddr_in for structure sin_len so we can set
226     it properly.
227     * index_dir.c (which ends up in boa_indexer) can now be compiled
228     with USE_LOCALTIME, and if so, it will report the local time
229     using the timezone name. Otherwise it uses UTC time and UTC
230     timezone designation.
231     * fix buglet in mmap_cache.c which shows up when under
232     heavy load by many different files.
233     Found and squashed by Michal Kara
234     * normalize paths on Aliases, log files, server root, dirmaker
235     This makes sure that paths are 'absolute'
236     * don't generate DOCUMENT_ROOT or SERVER_ROOT,
237     CGIs have no business knowing that information
238     * if CGI, chdir to the cgi's root path
239     Bug found by Matt Callaway
240     * remove ChrootPath and PidFile directives from the parser
241     (they aren't used anyway)
242     * keep track of maximum file descriptor in use to optimize call
243     to select()
244     * apply IPv6 patch from Jari Korva
245     * optimize keep-alive copy data routine
246     * try to use memcpy instead of strcpy/strcat in more places (alias.c)
247     * update .depend file
248     * use fcntl + GET_FL to get a file descriptor's flags, then
249     add or remove only the bits we want to set. This prevents
250     accidentally setting or unsettings bits we don't have anything
251     to do with inadvertantly. (removed, at least temporarily.
252     Show me a system where it is needed -- LRD)
253     * make sure to call FD_ZERO when we handle a restart
254     * in read.c, don't call boa_perror on read failure -- socket is
255     dead or messed up anyway, no reason to try to write to it.
256     * explicit .SUFFIXES in Makefile.in
257     * boa.objdump target added
258     * use @MAKE_SET@ (for when $(MAKE) != "make")
259     * add -Wundef -Wwrite-strings -Wredundant-decls -Winline to GCC_FLAGS
260     * change Paul Phillips' and Larry Doolittle's emails in source
261     * add --disable-debug, --enable-profile, --with-dmalloc, and --with-efence
262     * test for failed-but-return-was-successful setuid:
263     http://www.securityfocus.com/bid/1322
264     * use _exit not exit in CGI child
265     * always place new keepalive request on blocked list, we can't be
266     sure of the state of the active list, and since enqueue places
267     things at the *front* of the list, it doesn't do us much good
268     to place the new request on the active list anyway.
269     * update some Copyright statements for 2002
270     * When comparing the uri to an alias, only compare if
271     the uri length is greater than or equal to the length of the alias
272     * in init_script_alias, make sure to check for document_root before
273     trying to use it
274     * script_name is now just a copy of the request, rather
275     than some complicated variation on the pathname
276     * change the way the CGI environment is handled.
277     Now, it is allocated at request allocation time, and exists
278     throughout the life of the structure.
279     * check memory allocations, etc.. when creating the static
280     CGI environment and when making new CGI environment variables
281     * wait until process_option_end to call unescape_uri, clean_pathname,
282     and translate_uri
283     * remove debian package information
284     * move RedHat packaging information to contrib
285     * remove tests -- they weren't usable anyway
286     * add some new hash routines, and use djb2 (a variant on a
287     hash algorithm popularized by Dan J. Bernstein)
288     * a side-effect of the new hash routines is a bugfix,
289     involving negative return values from hash routines.
290     This has been fixed.
291     * add a routine, show_hash_stats, which is called with other
292     statistical output via sigalarm
293     * remove some duplicate prototypes from config.c
294     * make simple_itoa take an unsigned int
295     * try to make NOBLOCK handling in compat.h compatible with Solaris
296     * make sure to update current_time before calling signal handlers
297     * alter primary loop to make sure that select gets called even
298     when there are requests that are not blocking, and call fdset_update
299     and process_requests (when appropriate) after signal handlers but
300     before select to make sure that blocked requests are still handled
301     by select after a sighup. (Thanks to Karl Olsen)
302     * pull select loop into select.c
303     * poll server socket once per active connection
304     * add send_r_service_unavailable and use it when appropriate
305     * state uptime in seconds at normal program termination
306     * include sys/fcntl.h if it is found by configure
307     * fix POST bug where a content-length < 0 would cause Boa to
308     consume its full share of CPU until killed
309     Bug report by Landon Curt Noll
310     * add CGIPath configuration variable
311     based upon a patch by Landon Curt Noll
312     * add function boa_atoi, which wraps atoi, but does not
313     accept negative values. Additionally, it checks to make sure
314     the converted value and the original value are the same, avoiding
315     issues like "124.3" -> "123" and "123abc" -=> "123".
316     Either a value is an int or it isn't - no middle ground.
317     * use boa_atoi to convert content-length from client.
318     * add new #define - SINGLE_POST_LIMIT_DEFAULT, which defines
319     (in bytes) the *default* single_post_limit.
320     * single_post_limit is now in bytes.
321     * when adding aliases, only "normalize" paths that start
322     with "./" - this is a departure from previous behavior
323     * add "?" to the list of characters that it is safe to leave unescaped
324     * clean up Makefile.in of no-longer-pertinent comments
325     * add send_r_bad_gateway and use it
326     * tie stderr to either cgi_log_fd or devnullfd - either way
327     make sure stderr is a valid filehandle before cgi execution
328     * cgi_env is no longer allocated, it's part of the struct now
329     * fix bug in CgiPath logic
330     * when unable to allocate memory for an environment variable, log it
331     * add clear_common_env, which de-allocates the cgi_common_env stuff
332     [NEVER USE THIS outside of a terminal signal handler!]
333     * don't be so wasteful of memory in normalize_path
334     * adapted fix for alias expansion from Brieuc Jeunhomme
335    
336     ** Changes from 0.94.10.1 to 0.94.11
337     * use LIBS in Makefile.in (which propagates from autoconf)
338     * properly free memory allocated by scandir in index_dir.c
339     * rearrange some header files and includes
340     * on reads and writes, don't check for -1, check for < 0
341     * include fix by William Meadows
342     for escape.c which fixes segfaults due to improper allocation
343     * above fix by William Meadows no longer needed;
344     escape.c and escape.h rewritten by Larry Doolittle -- requires
345     at least 32 bit words, but is correct (jdn's 1st attempt was faulty)
346    
347     ** Changes from 0.94.10 to 0.94.10.1
348     * Actually update the SERVER_VERSION in src/defines.h
349    
350     ** Changes from 0.94.9 to 0.94.10
351     * Fixes escaping rules
352     * Fixes segfault when directory_index is undefined and
353     directory needs to be generated
354     * adds dummy signal handlers for SIGUSR1 and SIGUSR2 (Closes SF #425921)
355     * Update documentation regarding mime.types (Closes Debian #69991)
356     * Make sure documentation builds (Closes Debian #110818)
357    
358     ** Changes from 0.94.8.3 to 0.94.9
359     * src/Makefile.in updated to take CFLAGS, LIBS, and LDFLAGS
360     from autoconf
361     * Update escaping rules with latest RFC
362     * unescape_uri skips fragments and also stop parsing at '?'
363     * Don't accept fd over FD_SETSIZE in request.c:get_request
364     * use backported documentation from 0.95
365     * make sure POST fd gets closed even on client cancel
366     * use backported index_dir.c from 0.95
367     * support subdirectories in ScriptAlias directories
368     * add SinglePostLimit (int, in Kilobytes) to config system
369     * check for ENOSPC on body write
370     * use environment variable TMP (or "/tmp" if not available),
371     and chdir there when boa exits.
372     * add 1-time-only hack to make a 32kB read at the end of a request
373     on POST or PUT
374     * close unused file descriptors (/dev/null in boa.c, and the
375     unused part of the pipes call in cgi.c)
376     * made Makefile.in VPATH happy
377    
378     ** Changes from 0.94.8.2 to 0.94.8.3
379     * Move unescape_uri *before* clean_pathname to prevent
380     encoding of / and .. in pathname
381     * wrap execution of GUNZIP in cgi.c with #ifdef GUNZIP
382     * stop parsing when fragment found in URL ('#')
383    
384     ** Changes from 0.94.8.1 to 0.94.8.2
385     * close pipes[1] in child and generate HTTP_REFERER environment
386     variable in cgi.c
387     * Minor changes to the Debian package
388    
389     ** Changes from 0.94.8 to 0.94.8.1
390     * Change umask call from (umask(0600)) to (umask(~0600))
391    
392     ** Changes from 0.94.7 to 0.94.8
393     * Fix major thinko in temp file permissions
394     * unlink temporary file immediately following creation
395     * implement maximum # of active connections at 10 less than RLIMIT_NOFILE
396     to avoid or eliminate crashes resulting from running out of
397     file descriptors
398     * Fix thinko in POST
399    
400     ** Changes from 0.94.6 to 0.94.7
401     * STDIN and STDOUT are now tied to /dev/null
402     * sets PATH_MAX to 2048 if not defined (for Hurd)
403     * core dumps (should never happen) would be located in /tmp
404     * alter behavior when select gets a EBADF
405     * add translation for the \" char -> &quot;
406     * remove use of sys_errlist. Use perror.
407     * better makedist.sh (still a stupid program though)
408    
409     ** Changes from 0.94.5 to 0.94.6
410     * Removed doc++ commenting
411     * Removed erroneous debugging statments
412     * Move some stuff out of config.c (read_config_file) to boa.c
413     * Altered some of fixup_server_root()
414     * Bug fix in get.c re: automatic gunzip
415     * Added some stubs for chroot code (*not* ready yet)
416    
417     ** Changes from 0.94.4 to 0.94.5
418     * Alteration of most of the comments and such for doc++ use
419     * Fixed buffer overflow in alias.c
420     * Fixed buffer underflow in util.c
421    
422     ** Changes from 0.94.3 to 0.94.4
423     * Better escaping of data to user, both for HTTP headers and HTML body
424     * Proper escaping of output in CGI example perl scripts
425    
426     ** Changes from 0.94.0 to 0.94.2
427     * Fixed obnoxious pipeline bug
428     * Fixed (sorta) a compilation/core bug for *BSD systems
429     Original code by Thomas Neumann
430     * Moved to GPLv2
431     * Changed manpage to section 8
432     * boa.sgml now references a .png file instead of evil .gif
433    
434     ** Changes from 0.93.19.2 to 0.94.0
435     * Added UseGMT to the configuration parser
436     * util.c commonlog now logs in Apache-style commonlog time format
437     * Remove SO_SNDBUF on-start message
438    
439     ** Changes from 0.93.19 to 0.93.19.2
440     * Changed to combined log (from NCSA access_log format) ala Drew Streib
441     * Altered POST cgi code to handle bug in Netscape
442     * SO_SNDBUF changes by Larry
443    
444     ** Changes from 0.93.17.2 to 0.93.19 (all 0.93.18.x changes inclusive)
445     * Update of some copyright statements for 99
446     * Replacement of sprintf with strlen/memcpy or strcpy/strcat
447     wherever possible
448     * Significant rearrangement in alias.c, minor functional differences
449     (some CGI environment variables handled differently)
450     * Removal of die function. Replace with log_err_mesg and exit.
451     * initial IPv6 stubs and support
452     * Move #include "config.h" to top of boa.h where it will do some good
453     * Stubs and functions for strstr and strdup
454     * Seperation of buffer code into it's own file
455     * Significant changes to cgi.c et al (cgi_header.c, etc...)
456     * Speed patches by removal of "extra" calls to time(): Use global variable!
457     * pipelining changes... it works now.
458     * require content-length from clients (ala rfc1945)
459     * alter body_read and body_write to work more efficiently with known content-length
460     * move read(2) part to *after* parsing...
461     * added support for additional header message in send_redirect_temp
462     * change use of NO_ZERO_FILL_LENGTH to offsetof() use
463     * Remove SO_REUSEADDR setting on each client socket, Paul Saab
464     * Avoid SO_SNDBUF setting if possible
465     * Large quantities of otherwise not-insignificant changes
466    
467     ** Changes from 0.93.17.2 to 0.93.17.3
468     * Put on-the-fly directories back in, stripped down from the 0.92 version
469     * Fixed DocumentRoot, ServerAdmin and ServerName null-value handling in
470     CGI environment generation
471     * Fixed argument order in Script* directives (bug introduced in 0.93.17.2)
472     * Got rid of MAX_CGI_VARS because it was not being used consistently, or
473     for that matter, at all, really.
474     * Added some more FASCIST_LOGGING to cgi.c
475     * Minor mmap patch by LRD for request.c
476    
477     ** Changes from 0.93.17.1 to 0.93.17.2
478     * Added "Listen" directive for server bind address, as most recently
479     suggested by David N. Welton
480     * Put virtualhost feature in, was experimental in 0.92q
481    
482     ** Changes from 0.93.16.2 to 0.93.17.1
483     * New config file parser (supposed to be more maintainable) (LRD)
484     * Support for "|command" and ":host:port" syntax for logfiles (untested) (LRD)
485    
486     ** Changes for the 0.93 version **
487     * Huge quantities of changes
488     * keepalive Bugfix in 0.93.16.2 by Jon Nelson
489     report by Craig Silverstein of Google fame.
490     * patch for config.h by Craig Silverstein
491     * fixed "Parent Directory" problem in boa_indexer for title "/"
492     (Debian bug #36165)
493     * More Craig Silverstein
494     modifications, namely:
495     ErrorLog (if omitted, print to stderr)
496     DocumentRoot (if omitted, can only server user-dir files)
497     DirectoryIndex (if omitted, always use DirectoryMaker)
498     MimeTypes (if omitted, don't load -- users can use AddType instead)
499    
500    
501     ** Changes from v0.92o to v0.92p **
502    
503     * Documented misbehavior of CGI, SIGHUP, short aliases, stale dircache.
504     * Documented how to patch signals.c for use on SunOS.
505     * Closed file descriptor leak when redirecting a bare directory URL to
506     one with an appended "/".
507     * Closed potential file descriptor leak if errors encountered generating
508     on-the-fly index.
509     * Cleaned up include file handling to be simultaneously compatible with
510     Linux, SunOS, HP-UX, and AIX.
511     * Supress message body for codes 302, 400, 403, 404, 500, and 501 if
512     incoming request is "HEAD".
513    
514     ** Changes from v0.91 to v0.92o **
515     (0.92o released 27 December, 1996)
516    
517     * Maintenance handover from Paul Phillips to Larry Doolittle
518     * Changed (char)NULL to '\0'
519     * Cleaned up signal handler prototypes in signals.c
520     * Modified handling of CGI environment variable PATH_TRANSLATED,
521     should now work the same as NCSA.
522     * More conservative buffer size in add_cgi_env()
523     * Build argv list for a CGI script according to spec
524     * Speedup process_header_line, eliminate potential memory leak
525     * Occasional spelling fixes and lint removal
526     * Added REMOTE_PORT env var for CGI scripts, to allow easy ident lookups
527     * Changed rfc822 time format
528     * Log timeouts and broken connections
529     * Fix mime suffix handling for filenames with multiple "."s
530     * Initialize conn->time_last, fixes bug with rapid-fire connections
531     * Performance tweak to req_write()
532     * Changed http_version from float to char[8]
533     * Rewrote on-the-fly directory generation; it works now
534     * Added user configurable dircache directory in boa.conf
535     * Fixed "simple" response bugs, including incorrect CGI handling
536     * Keepalive (HTTP/1.1 draft) support, mostly by Jon Nelson
537     * Close data_fd in 304 Not Modified flow of control
538     * Switch socket flags to non-blocking before cgi handoff
539     * Try to handle errno properly in the face of multiple errors
540     * Close fd's of all other transactions before cgi handoff
541     * Move real work for sighup and sigchld out of signal handler
542     * Fix free(req->cgi_env) in request.c
543     * Response message cleanup - better match to HTML-2.0 DTD
544     * Experimental Virtual Host code from Russ Nelson
545     * Expand buffer for escaped URI in init_get()
546     * SIGTERM triggers lame duck mode until all pending transactions complete
547     * Close and unlink temp file for POST in parent process
548    
549     ** Changes from v0.90 to v0.91 **
550    
551     * Cleaned up main while loop
552     * Optimized request line parsing
553     * Added state machine for header reads -- necessary to deal wtih
554     possibility of obtaining header data in multiple reads. This
555     also allows interactive use of server.
556     * Added 500/501 return codes for various conditions
557    
558     ** v0.90 **
559    
560     * Initial release
561    

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