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Revision 1.42 - (hide annotations)
Sat Oct 26 20:58:48 2002 UTC (18 years, 9 months ago) by nmav
Branch: MAIN
Changes since 1.41: +5 -0 lines
Long offsets are not used by default.
Use of pipes instead of temporary files, if the post data sent
are less than PIPE_BUF.

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

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