1 const char jcc_rcs[] = "$Id: jcc.c,v 1.96 2006/08/15 20:12:36 david__schmidt Exp $";
2 /*********************************************************************
4 * File : $Source: /cvsroot/ijbswa/current/jcc.c,v $
6 * Purpose : Main file. Contains main() method, main loop, and
7 * the main connection-handling function.
9 * Copyright : Written by and Copyright (C) 2001 the SourceForge
10 * Privoxy team. http://www.privoxy.org/
12 * Based on the Internet Junkbuster originally written
13 * by and Copyright (C) 1997 Anonymous Coders and
14 * Junkbusters Corporation. http://www.junkbusters.com
16 * This program is free software; you can redistribute it
17 * and/or modify it under the terms of the GNU General
18 * Public License as published by the Free Software
19 * Foundation; either version 2 of the License, or (at
20 * your option) any later version.
22 * This program is distributed in the hope that it will
23 * be useful, but WITHOUT ANY WARRANTY; without even the
24 * implied warranty of MERCHANTABILITY or FITNESS FOR A
25 * PARTICULAR PURPOSE. See the GNU General Public
26 * License for more details.
28 * The GNU General Public License should be included with
29 * this file. If not, you can view it at
30 * http://www.gnu.org/copyleft/gpl.html
31 * or write to the Free Software Foundation, Inc., 59
32 * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
36 * Revision 1.96 2006/08/15 20:12:36 david__schmidt
37 * Windows service integration
39 * Revision 1.95 2006/08/03 02:46:41 david__schmidt
40 * Incorporate Fabian Keil's patch work:
\rhttp://www.fabiankeil.de/sourcecode/privoxy/
42 * Revision 1.94 2006/07/18 14:48:46 david__schmidt
43 * Reorganizing the repository: swapping out what was HEAD (the old 3.1 branch)
44 * with what was really the latest development (the v_3_0_branch branch)
46 * Revision 1.92.2.16 2005/04/03 20:10:50 david__schmidt
47 * Thanks to Jindrich Makovicka for a race condition fix for the log
48 * file. The race condition remains for non-pthread implementations.
49 * Reference patch #1175720.
51 * Revision 1.92.2.15 2004/10/03 12:53:32 david__schmidt
52 * Add the ability to check jpeg images for invalid
53 * lengths of comment blocks. Defensive strategy
54 * against the exploit:
55 * Microsoft Security Bulletin MS04-028
56 * Buffer Overrun in JPEG Processing (GDI+) Could
57 * Allow Code Execution (833987)
58 * Enabled with +inspect-jpegs in actions files.
60 * Revision 1.92.2.14 2003/12/12 12:52:53 oes
61 * - Fixed usage info for non-unix platforms
62 * - Fixed small cmdline parsing bug
64 * Revision 1.92.2.13 2003/11/27 19:20:27 oes
65 * Diagnostics: Now preserve the returncode of pthread_create
66 * in errno. Closes BR #775721. Thanks to Geoffrey Hausheer.
68 * Revision 1.92.2.12 2003/07/11 11:34:19 oes
69 * No longer ignore SIGCHLD. Fixes bug #769381
71 * Revision 1.92.2.11 2003/05/14 12:32:02 oes
72 * Close jarfile on graceful exit, remove stray line
74 * Revision 1.92.2.10 2003/05/08 15:13:46 oes
75 * Cosmetics: Killed a warning, a typo and an allocation left at exit
77 * Revision 1.92.2.9 2003/04/03 15:08:42 oes
78 * No longer rely on non-POSIX.1 extensions of getcwd().
81 * Revision 1.92.2.8 2003/03/31 13:12:32 oes
82 * Replaced setenv() by posix-compliant putenv()
83 * Thanks to Neil McCalden (nmcc AT users.sf.net).
85 * Revision 1.92.2.7 2003/03/17 16:48:59 oes
86 * Added chroot ability, thanks to patch by Sviatoslav Sviridov
88 * Revision 1.92.2.6 2003/03/11 11:55:00 oes
89 * Clean-up and extension of improvements for forked mode:
90 * - Child's return code now consists of flags RC_FLAG_*
91 * - Reporting toggle to parent now properly #ifdef'ed
92 * - Children now report blocking to parent. This enables
93 * statistics in forked mode
95 * Revision 1.92.2.5 2003/03/10 23:45:32 oes
96 * Fixed bug #700381: Non-Threaded version now capable of being toggled.
97 * Children now report having been toggled through _exit(17), parents
98 * watch for that code and toggle themselves if found.
100 * Revision 1.92.2.4 2003/03/07 03:41:04 david__schmidt
101 * Wrapping all *_r functions (the non-_r versions of them) with
102 * mutex semaphores for OSX. Hopefully this will take care of all
103 * of those pesky crash reports.
105 * Revision 1.92.2.3 2003/02/28 12:53:06 oes
106 * Fixed two mostly harmless mem leaks
108 * Revision 1.92.2.2 2002/11/20 14:37:47 oes
109 * Fix: Head of global clients list now initialized to NULL
111 * Revision 1.92.2.1 2002/09/25 14:52:24 oes
112 * Added basic support for OPTIONS and TRACE HTTP methods:
113 * - New interceptor direct_response() added in chat().
114 * - sed() moved to earlier in the process, so that the
115 * Host: header is evaluated before actions and forwarding
118 * Revision 1.92 2002/05/08 16:00:46 oes
119 * Chat's buffer handling:
120 * - Fixed bug with unchecked out-of-mem conditions
121 * while reading client request & server headers
122 * - No longer predict if the buffer limit will be exceeded
123 * in the next read -- check add_to_iob's new
124 * return code. If buffer couldn't be extended
125 * (policy or out-of-mem) while
126 * - reading from client: abort
127 * - reading server headers: send error page
128 * - buffering server body for filter: flush,
129 * and if that fails: send error page
131 * Revision 1.91 2002/04/08 20:35:58 swa
134 * Revision 1.90 2002/04/02 14:57:28 oes
135 * Made sending wafers independent of FEATURE_COOKIE_JAR
137 * Revision 1.89 2002/03/31 17:18:59 jongfoster
138 * Win32 only: Enabling STRICT to fix a VC++ compile warning.
140 * Revision 1.88 2002/03/27 14:32:43 david__schmidt
141 * More compiler warning message maintenance
143 * Revision 1.87 2002/03/26 22:29:54 swa
144 * we have a new homepage!
146 * Revision 1.86 2002/03/25 17:04:55 david__schmidt
147 * Workaround for closing the jarfile before load_config() comes around again
149 * Revision 1.85 2002/03/24 15:23:33 jongfoster
152 * Revision 1.84 2002/03/24 13:25:43 swa
153 * name change related issues
155 * Revision 1.83 2002/03/16 23:54:06 jongfoster
156 * Adding graceful termination feature, to help look for memory leaks.
157 * If you enable this (which, by design, has to be done by hand
158 * editing config.h) and then go to http://i.j.b/die, then the program
159 * will exit cleanly after the *next* request. It should free all the
160 * memory that was used.
162 * Revision 1.82 2002/03/13 00:27:05 jongfoster
165 * Revision 1.81 2002/03/12 01:42:50 oes
166 * Introduced modular filters
168 * Revision 1.80 2002/03/11 22:07:05 david__schmidt
169 * OS/2 port maintenance:
170 * - Fixed EMX build - it had decayed a little
171 * - Fixed inexplicable crash during FD_ZERO - must be due to a bad macro.
172 * substituted a memset for now.
174 * Revision 1.79 2002/03/09 20:03:52 jongfoster
175 * - Making various functions return int rather than size_t.
176 * (Undoing a recent change). Since size_t is unsigned on
177 * Windows, functions like read_socket that return -1 on
178 * error cannot return a size_t.
180 * THIS WAS A MAJOR BUG - it caused frequent, unpredictable
181 * crashes, and also frequently caused JB to jump to 100%
182 * CPU and stay there. (Because it thought it had just
183 * read ((unsigned)-1) == 4Gb of data...)
185 * - The signature of write_socket has changed, it now simply
186 * returns success=0/failure=nonzero.
188 * - Trying to get rid of a few warnings --with-debug on
189 * Windows, I've introduced a new type "jb_socket". This is
190 * used for the socket file descriptors. On Windows, this
191 * is SOCKET (a typedef for unsigned). Everywhere else, it's
192 * an int. The error value can't be -1 any more, so it's
193 * now JB_INVALID_SOCKET (which is -1 on UNIX, and in
194 * Windows it maps to the #define INVALID_SOCKET.)
196 * - The signature of bind_port has changed.
198 * Revision 1.78 2002/03/08 21:35:04 oes
199 * Added optional group supplement to --user option. Will now use default group of user if no group given
201 * Revision 1.77 2002/03/07 03:52:06 oes
202 * - Fixed compiler warnings etc
203 * - Improved handling of failed DNS lookups
205 * Revision 1.76 2002/03/06 22:54:35 jongfoster
206 * Automated function-comment nitpicking.
208 * Revision 1.75 2002/03/06 10:02:19 oes
209 * Fixed stupid bug when --user was not given
211 * Revision 1.74 2002/03/06 00:49:31 jongfoster
212 * Fixing warning on Windows
213 * Making #ifdefs that refer to the same variable consistently
214 * use #ifdef unix rather than mixing #ifdef unix & #ifndef OS2
216 * Revision 1.73 2002/03/05 23:57:30 hal9
217 * Stray character 's' on line 1618 was breaking build.
219 * Revision 1.72 2002/03/05 21:33:45 david__schmidt
220 * - Re-enable OS/2 building after new parms were added
221 * - Fix false out of memory report when resolving CGI templates when no IP
222 * address is available of failed attempt (a la no such domain)
224 * Revision 1.71 2002/03/05 18:13:56 oes
225 * Added --user option
227 * Revision 1.70 2002/03/05 04:52:42 oes
228 * Deleted non-errlog debugging code
230 * Revision 1.69 2002/03/04 23:50:00 jongfoster
231 * Splitting off bind_port() call into bind_port_helper(), with
234 * Revision 1.68 2002/03/04 20:17:32 oes
237 * Revision 1.67 2002/03/04 18:18:57 oes
238 * - Removed _DEBUG mode
239 * - Cleand up cmdline parsing
240 * - Introduced --no-daemon, --pidfile options
241 * - Cleaned up signal handling:
242 * - Terminate cleanly on INT, TERM and ABRT
243 * - Schedule logfile for re-opening on HUP
244 * - Ignore CHLD and PIPE
245 * - Leave the rest with their default handlers
246 * - Uniform handler registration
247 * - Added usage() function
248 * - Played styleguide police
250 * Revision 1.66 2002/03/03 15:06:55 oes
251 * Re-enabled automatic config reloading
253 * Revision 1.65 2002/03/03 14:49:11 oes
254 * Fixed CLF logging: Now uses client's original HTTP request
256 * Revision 1.64 2002/03/03 09:18:03 joergs
257 * Made jumbjuster work on AmigaOS again.
259 * Revision 1.63 2002/03/02 04:14:50 david__schmidt
260 * Clean up a little CRLF unpleasantness that suddenly appeared
262 * Revision 1.62 2002/02/20 23:17:23 jongfoster
263 * Detecting some out-of memory conditions and exiting with a log message.
265 * Revision 1.61 2002/01/17 21:01:52 jongfoster
266 * Moving all our URL and URL pattern parsing code to urlmatch.c.
268 * Revision 1.60 2001/12/30 14:07:32 steudten
269 * - Add signal handling (unix)
270 * - Add SIGHUP handler (unix)
271 * - Add creation of pidfile (unix)
272 * - Add action 'top' in rc file (RH)
273 * - Add entry 'SIGNALS' to manpage
274 * - Add exit message to logfile (unix)
276 * Revision 1.59 2001/12/13 14:07:18 oes
277 * Fixed Bug: 503 error page now sent OK
279 * Revision 1.58 2001/11/30 23:37:24 jongfoster
280 * Renaming the Win32 config file to config.txt - this is almost the
281 * same as the corresponding UNIX name "config"
283 * Revision 1.57 2001/11/16 00:47:43 jongfoster
284 * Changing the tty-disconnection code to use setsid().
286 * Revision 1.56 2001/11/13 20:20:54 jongfoster
287 * Tabs->spaces, fixing a bug with missing {} around an if()
289 * Revision 1.55 2001/11/13 20:14:53 jongfoster
290 * Patch for FreeBSD setpgrp() as suggested by Alexander Lazic
292 * Revision 1.54 2001/11/07 00:03:14 steudten
293 * Give reliable return value if an error
294 * occurs not just 0 with new daemon mode.
296 * Revision 1.53 2001/11/05 21:41:43 steudten
297 * Add changes to be a real daemon just for unix os.
298 * (change cwd to /, detach from controlling tty, set
299 * process group and session leader to the own process.
301 * Add some fatal-error log message for failed malloc().
302 * Add '-d' if compiled with 'configure --with-debug' to
303 * enable debug output.
305 * Revision 1.52 2001/10/26 20:11:20 jongfoster
306 * Fixing type mismatch
308 * Revision 1.51 2001/10/26 17:38:28 oes
311 * Revision 1.50 2001/10/25 03:40:48 david__schmidt
312 * Change in porting tactics: OS/2's EMX porting layer doesn't allow multiple
313 * threads to call select() simultaneously. So, it's time to do a real, live,
314 * native OS/2 port. See defines for __EMX__ (the porting layer) vs. __OS2__
315 * (native). Both versions will work, but using __OS2__ offers multi-threading.
317 * Revision 1.49 2001/10/23 21:41:35 jongfoster
318 * Added call to initialize the (statically-allocated of course)
319 * "out of memory" CGI response.
321 * Revision 1.48 2001/10/10 19:56:46 jongfoster
322 * Moving some code that wasn't cookie-related out of an #ifdef
325 * Revision 1.47 2001/10/10 16:44:36 oes
326 * Added CONNECT destination port limitation check
328 * Revision 1.46 2001/10/08 15:17:41 oes
329 * Re-enabled SSL forwarding
331 * Revision 1.45 2001/10/07 15:42:11 oes
332 * Replaced 6 boolean members of csp with one bitmap (csp->flags)
334 * Moved downgrading of the HTTP version from parse_http_request to
335 * chat(), since we can't decide if it is necessary before we have
336 * determined the actions for the URL. The HTTP command is now
337 * *always* re-built so the repairs need no longer be special-cased.
339 * filter_popups now gets a csp pointer so it can raise the new
340 * CSP_FLAG_MODIFIED flag.
344 * Added configurable size limit for the IOB. If the IOB grows so
345 * large that the next read would exceed the limit, the header
346 * is generated, and the header & unfiltered buffer are flushed
347 * to the client. Chat then continues in non-buffering,
348 * non-filtering body mode.
350 * Revision 1.44 2001/10/02 18:13:57 oes
353 * Revision 1.43 2001/10/02 15:32:13 oes
354 * Moved generation of hdr
356 * Revision 1.42 2001/09/21 23:02:02 david__schmidt
357 * Cleaning up 2 compiler warnings on OS/2.
359 * Revision 1.41 2001/09/16 17:05:14 jongfoster
360 * Removing unused #include showarg.h
362 * Revision 1.40 2001/09/16 15:41:45 jongfoster
363 * Fixing signed/unsigned comparison warning.
365 * Revision 1.39 2001/09/16 13:21:27 jongfoster
366 * Changes to use new list functions.
368 * Revision 1.38 2001/09/16 13:01:46 jongfoster
369 * Removing redundant function call that zeroed zalloc()'d memory.
371 * Revision 1.37 2001/09/10 11:12:24 oes
372 * Deleted unused variable
374 * Revision 1.36 2001/09/10 10:56:15 oes
375 * Silenced compiler warnings
377 * Revision 1.35 2001/07/31 14:44:22 oes
378 * Deleted unused size parameter from filter_popups()
380 * Revision 1.34 2001/07/30 22:08:36 jongfoster
381 * Tidying up #defines:
382 * - All feature #defines are now of the form FEATURE_xxx
383 * - Permanently turned off WIN_GUI_EDIT
384 * - Permanently turned on WEBDAV and SPLIT_PROXY_ARGS
386 * Revision 1.33 2001/07/29 19:32:00 jongfoster
387 * Renaming _main() [mingw32 only] to real_main(), for ANSI compliance.
389 * Revision 1.32 2001/07/29 18:47:05 jongfoster
390 * Adding missing #include "loadcfg.h"
392 * Revision 1.31 2001/07/29 12:17:48 oes
393 * Applied pthread fix by Paul Lieverse
395 * Revision 1.30 2001/07/25 22:57:13 jongfoster
396 * __BEOS__ no longer overrides FEATURE_PTHREAD.
397 * This is because FEATURE_PTHREAD will soon be widely used, so I
398 * want to keep it simple.
400 * Revision 1.29 2001/07/24 12:47:06 oes
401 * Applied BeOS support update by Eugenia
403 * Revision 1.28 2001/07/23 13:26:12 oes
404 * Fixed bug in popup-killing for the first read that caused binary garbage to be sent between headers and body
406 * Revision 1.27 2001/07/19 19:09:47 haroon
407 * - Added code to take care of the situation where while processing the first
408 * server response (which includes the server header), after finding the end
409 * of the headers we were not looking past the end of the headers for
410 * content modification. I enabled it for filter_popups.
411 * Someone else should look to see if other similar operations should be
412 * done to the discarded portion of the buffer.
414 * Note 2001/07/20: No, the other content modification mechanisms will process
415 * the whole iob later anyway. --oes
417 * Revision 1.26 2001/07/18 12:31:36 oes
420 * Revision 1.25 2001/07/15 19:43:49 jongfoster
421 * Supports POSIX threads.
422 * Also removed some unused #includes.
424 * Revision 1.24 2001/07/13 14:00:40 oes
425 * - Generic content modification scheme:
426 * Each feature has its own applicability flag that is set
427 * from csp->action->flags.
428 * Replaced the "filtering" int flag , by a function pointer
429 * "content_filter" to the function that will do the content
430 * modification. If it is != NULL, the document will be buffered
431 * and processed through *content_filter, which must set
432 * csp->content_length and return a modified copy of the body
433 * or return NULL (on failiure).
434 * - Changed csp->is_text to the more generic bitmap csp->content_type
435 * which can currently take the valued CT_TEXT or CT_GIF
437 * - Removed all #ifdef PCRS
439 * Revision 1.23 2001/07/02 02:28:25 iwanttokeepanon
440 * Added "#ifdef ACL_FILES" conditional compilation to line 1291 to exclude
441 * the `block_acl' call. This prevents a compilation error when the user
442 * does not wish to use the "ACL" feature.
444 * Revision 1.22 2001/06/29 21:45:41 oes
445 * Indentation, CRLF->LF, Tab-> Space
447 * Revision 1.21 2001/06/29 13:29:36 oes
448 * - Cleaned up, improved comments
449 * - Unified all possible interceptors (CGI,
450 * block, trust, fast_redirect) in one
451 * place, with one (CGI) answer generation
452 * mechansim. Much clearer now.
453 * - Removed the GIF image generation, which
454 * is now done in filters.c:block_url()
455 * - Made error conditions like domain lookup
456 * failiure or (various) problems while talking
457 * to the server use cgi.c:error_response()
458 * instead of generating HTML/HTTP in chat() (yuck!)
459 * - Removed logentry from cancelled commit
461 * Revision 1.20 2001/06/09 10:55:28 jongfoster
462 * Changing BUFSIZ ==> BUFFER_SIZE
464 * Revision 1.19 2001/06/07 23:12:52 jongfoster
465 * Replacing function pointer in struct gateway with a directly
466 * called function forwarded_connect().
467 * Replacing struct gateway with struct forward_spec
469 * Revision 1.18 2001/06/03 19:12:16 oes
470 * introduced new cgi handling
472 * Revision 1.17 2001/06/01 20:07:23 jongfoster
473 * Now uses action +image-blocker{} rather than config->tinygif
475 * Revision 1.16 2001/06/01 18:49:17 jongfoster
476 * Replaced "list_share" with "list" - the tiny memory gain was not
477 * worth the extra complexity.
479 * Revision 1.15 2001/05/31 21:24:47 jongfoster
480 * Changed "permission" to "action" throughout.
481 * Removed DEFAULT_USER_AGENT - it must now be specified manually.
482 * Moved vanilla wafer check into chat(), since we must now
483 * decide whether or not to add it based on the URL.
485 * Revision 1.14 2001/05/29 20:14:01 joergs
486 * AmigaOS bugfix: PCRS needs a lot of stack, stacksize for child threads
489 * Revision 1.13 2001/05/29 09:50:24 jongfoster
490 * Unified blocklist/imagelist/permissionslist.
491 * File format is still under discussion, but the internal changes
494 * Also modified interceptor behaviour:
495 * - We now intercept all URLs beginning with one of the following
496 * prefixes (and *only* these prefixes):
498 * * http://ijbswa.sf.net/config/
499 * * http://ijbswa.sourceforge.net/config/
500 * - New interceptors "home page" - go to http://i.j.b/ to see it.
501 * - Internal changes so that intercepted and fast redirect pages
502 * are not replaced with an image.
503 * - Interceptors now have the option to send a binary page direct
504 * to the client. (i.e. ijb-send-banner uses this)
505 * - Implemented show-url-info interceptor. (Which is why I needed
506 * the above interceptors changes - a typical URL is
507 * "http://i.j.b/show-url-info?url=www.somesite.com/banner.gif".
508 * The previous mechanism would not have intercepted that, and
509 * if it had been intercepted then it then it would have replaced
512 * Revision 1.12 2001/05/27 22:17:04 oes
514 * - re_process_buffer no longer writes the modified buffer
515 * to the client, which was very ugly. It now returns the
516 * buffer, which it is then written by chat.
518 * - content_length now adjusts the Content-Length: header
519 * for modified documents rather than crunch()ing it.
520 * (Length info in csp->content_length, which is 0 for
521 * unmodified documents)
523 * - For this to work, sed() is called twice when filtering.
525 * Revision 1.11 2001/05/26 17:27:53 jongfoster
526 * Added support for CLF and fixed LOG_LEVEL_LOG.
527 * Also did CRLF->LF fix of my previous patch.
529 * Revision 1.10 2001/05/26 15:26:15 jongfoster
530 * ACL feature now provides more security by immediately dropping
531 * connections from untrusted hosts.
533 * Revision 1.9 2001/05/26 00:28:36 jongfoster
534 * Automatic reloading of config file.
535 * Removed obsolete SIGHUP support (Unix) and Reload menu option (Win32).
536 * Most of the global variables have been moved to a new
537 * struct configuration_spec, accessed through csp->config->globalname
538 * Most of the globals remaining are used by the Win32 GUI.
540 * Revision 1.8 2001/05/25 22:43:18 jongfoster
541 * Fixing minor memory leak and buffer overflow.
543 * Revision 1.7 2001/05/25 22:34:30 jongfoster
546 * Revision 1.6 2001/05/23 00:13:58 joergs
547 * AmigaOS support fixed.
549 * Revision 1.5 2001/05/22 18:46:04 oes
551 * - Enabled filtering banners by size rather than URL
552 * by adding patterns that replace all standard banner
553 * sizes with the "Junkbuster" gif to the re_filterfile
555 * - Enabled filtering WebBugs by providing a pattern
556 * which kills all 1x1 images
558 * - Added support for PCRE_UNGREEDY behaviour to pcrs,
559 * which is selected by the (nonstandard and therefore
560 * capital) letter 'U' in the option string.
561 * It causes the quantifiers to be ungreedy by default.
562 * Appending a ? turns back to greedy (!).
564 * - Added a new interceptor ijb-send-banner, which
565 * sends back the "Junkbuster" gif. Without imagelist or
566 * MSIE detection support, or if tinygif = 1, or the
567 * URL isn't recognized as an imageurl, a lame HTML
568 * explanation is sent instead.
570 * - Added new feature, which permits blocking remote
571 * script redirects and firing back a local redirect
573 * The feature is conditionally compiled, i.e. it
574 * can be disabled with --disable-fast-redirects,
575 * plus it must be activated by a "fast-redirects"
576 * line in the config file, has its own log level
577 * and of course wants to be displayed by show-proxy-args
578 * Note: Boy, all the #ifdefs in 1001 locations and
579 * all the fumbling with configure.in and acconfig.h
580 * were *way* more work than the feature itself :-(
582 * - Because a generic redirect template was needed for
583 * this, tinygif = 3 now uses the same.
585 * - Moved GIFs, and other static HTTP response templates
590 * - Removed some >400 CRs again (Jon, you really worked
593 * Revision 1.4 2001/05/21 19:34:01 jongfoster
594 * Made failure to bind() a fatal error.
596 * Revision 1.3 2001/05/20 01:21:20 jongfoster
597 * Version 2.9.4 checkin.
598 * - Merged popupfile and cookiefile, and added control over PCRS
599 * filtering, in new "permissionsfile".
600 * - Implemented LOG_LEVEL_FATAL, so that if there is a configuration
601 * file error you now get a message box (in the Win32 GUI) rather
602 * than the program exiting with no explanation.
603 * - Made killpopup use the PCRS MIME-type checking and HTTP-header
605 * - Removed tabs from "config"
606 * - Moved duplicated url parsing code in "loaders.c" to a new funcition.
607 * - Bumped up version number.
609 * Revision 1.2 2001/05/17 22:34:44 oes
610 * - Added hint on GIF char array generation to jcc.c
611 * - Cleaned CRLF's from the sources and related files
612 * - Repaired logging for REF and FRC
614 * Revision 1.1.1.1 2001/05/15 13:58:56 oes
615 * Initial import of version 2.9.3 source tree
618 *********************************************************************/
624 #include <sys/types.h>
631 #ifdef FEATURE_PTHREAD
633 #endif /* def FEATURE_PTHREAD */
636 # ifndef FEATURE_PTHREAD
640 # include <windows.h>
641 # include <process.h>
642 # endif /* ndef FEATURE_PTHREAD */
645 # ifndef _WIN_CONSOLE
647 # endif /* ndef _WIN_CONSOLE */
648 # include "w32svrapi.h"
650 #else /* ifndef _WIN32 */
652 # if !defined (__OS2__)
654 # include <sys/wait.h>
655 # endif /* ndef __OS2__ */
656 # include <sys/time.h>
657 # include <sys/stat.h>
658 # include <sys/ioctl.h>
661 #include <sys/termios.h>
672 # include <socket.h> /* BeOS has select() for sockets only. */
673 # include <OS.h> /* declarations for threads and stuff. */
676 # if defined(__EMX__) || defined(__OS2__)
677 # include <sys/select.h> /* OS/2/EMX needs a little help with select */
682 #define bzero(B,N) memset(B,0x00,n)
697 #include "killpopup.h"
698 #include "miscutil.h"
700 #include "jbsockets.h"
705 #include "urlmatch.h"
707 const char jcc_h_rcs[] = JCC_H_VERSION;
708 const char project_h_rcs[] = PROJECT_H_VERSION;
711 struct client_state clients[1];
712 struct file_list files[1];
714 #ifdef FEATURE_STATISTICS
715 int urls_read = 0; /* total nr of urls read inc rejected */
716 int urls_rejected = 0; /* total nr of urls rejected */
717 #endif /* def FEATURE_STATISTICS */
719 #ifdef FEATURE_GRACEFUL_TERMINATION
723 static void listen_loop(void);
724 static void chat(struct client_state *csp);
726 void serve(struct client_state *csp);
727 #else /* ifndef AMIGA */
728 static void serve(struct client_state *csp);
729 #endif /* def AMIGA */
732 static int32 server_thread(void *data);
733 #endif /* def __BEOS__ */
736 #define sleep(N) Sleep(((N) * 1000))
740 #define sleep(N) DosSleep(((N) * 100))
745 * Hit OSX over the head with a hammer. Protect all *_r functions.
747 pthread_mutex_t gmtime_mutex;
748 pthread_mutex_t localtime_mutex;
749 pthread_mutex_t gethostbyaddr_mutex;
750 pthread_mutex_t gethostbyname_mutex;
751 #endif /* def OSX_DARWIN */
753 #ifdef FEATURE_PTHREAD
754 pthread_mutex_t log_mutex;
755 pthread_mutex_t log_init_mutex;
756 #endif /* FEATURE_PTHREAD */
758 #if defined(unix) || defined(__EMX__)
759 const char *basedir = NULL;
760 const char *pidfile = NULL;
761 int received_hup_signal = 0;
762 #endif /* defined unix */
764 /* The vanilla wafer. */
765 static const char VANILLA_WAFER[] =
766 "NOTICE=TO_WHOM_IT_MAY_CONCERN_"
767 "Do_not_send_me_any_copyrighted_information_other_than_the_"
768 "document_that_I_am_requesting_or_any_of_its_necessary_components._"
769 "In_particular_do_not_send_me_any_cookies_that_"
770 "are_subject_to_a_claim_of_copyright_by_anybody._"
771 "Take_notice_that_I_refuse_to_be_bound_by_any_license_condition_"
772 "(copyright_or_otherwise)_applying_to_any_cookie._";
775 #if !defined(_WIN32) && !defined(__OS2__) && !defined(AMIGA)
776 /*********************************************************************
778 * Function : sig_handler
780 * Description : Signal handler for different signals.
781 * Exit gracefully on ABRT, TERM and INT
782 * or set a flag that will cause the errlog
783 * to be reopened by the main thread on HUP.
786 * 1 : the_signal = the signal cause this function to call
790 *********************************************************************/
791 static void sig_handler(int the_signal)
798 log_error(LOG_LEVEL_INFO, "exiting by signal %d .. bye", the_signal);
806 received_hup_signal = 1;
811 * We shouldn't be here, unless we catch signals
812 * in main() that we can't handle here!
814 log_error(LOG_LEVEL_FATAL, "sig_handler: exiting on unexpected signal %d", the_signal);
822 /*********************************************************************
826 * Description : Once a connection to the client has been accepted,
827 * this function is called (via serve()) to handle the
828 * main business of the communication. When this
829 * function returns, the caller must close the client
833 * 1 : csp = Current client state (buffers, headers, etc...)
835 * Returns : On success, the number of bytes written are returned (zero
836 * indicates nothing was written). On error, -1 is returned,
837 * and errno is set appropriately. If count is zero and the
838 * file descriptor refers to a regular file, 0 will be
839 * returned without causing any other effect. For a special
840 * file, the results are not portable.
842 *********************************************************************/
843 static void chat(struct client_state *csp)
846 * This next lines are a little ugly, but they simplifies the if statements
847 * below. Basically if TOGGLE, then we want the if to test if the
848 * CSP_FLAG_TOGGLED_ON flag ist set, else we don't. And if FEATURE_FORCE_LOAD,
849 * then we want the if to test for CSP_FLAG_FORCED , else we don't
851 #ifdef FEATURE_TOGGLE
852 # define IS_TOGGLED_ON_AND (csp->flags & CSP_FLAG_TOGGLED_ON) &&
853 #else /* ifndef FEATURE_TOGGLE */
854 # define IS_TOGGLED_ON_AND
855 #endif /* ndef FEATURE_TOGGLE */
856 #ifdef FEATURE_FORCE_LOAD
857 # define IS_NOT_FORCED_AND !(csp->flags & CSP_FLAG_FORCED) &&
858 #else /* ifndef FEATURE_FORCE_LOAD */
859 # define IS_NOT_FORCED_AND
860 #endif /* def FEATURE_FORCE_LOAD */
862 #define IS_ENABLED_AND IS_TOGGLED_ON_AND IS_NOT_FORCED_AND
864 char buf[BUFFER_SIZE];
872 int ms_iis5_hack = 0;
874 unsigned int socks_retries = 0;
875 const struct forward_spec * fwd;
876 struct http_request *http;
877 int len; /* for buffer sizes */
878 #ifdef FEATURE_KILL_POPUPS
879 int block_popups; /* bool, 1==will block popups */
880 int block_popups_now = 0; /* bool, 1==currently blocking popups */
881 #endif /* def FEATURE_KILL_POPUPS */
883 int pcrs_filter; /* bool, 1==will filter through pcrs */
884 int gif_deanimate; /* bool, 1==will deanimate gifs */
885 int jpeg_inspect; /* bool, 1==will inspect jpegs */
887 /* Function that does the content filtering for the current request */
888 char *(*content_filter)() = NULL;
890 /* Skeleton for HTTP response, if we should intercept the request */
891 struct http_response *rsp;
896 * Read the client's request. Note that since we're not using select() we
897 * could get blocked here if a client connected, then didn't say anything!
902 len = read_socket(csp->cfd, buf, sizeof(buf));
904 if (len <= 0) break; /* error! */
907 * If there is no memory left for buffering the
908 * request, there is nothing we can do but hang up
910 if (add_to_iob(csp, buf, len))
915 req = get_header(csp);
919 break; /* no HTTP request! */
924 continue; /* more to come! */
927 #ifdef FEATURE_FORCE_LOAD
928 /* If this request contains the FORCE_PREFIX,
929 * better get rid of it now and set the force flag --oes
932 if (strstr(req, FORCE_PREFIX))
934 strclean(req, FORCE_PREFIX);
935 log_error(LOG_LEVEL_FORCE, "Enforcing request \"%s\".\n", req);
936 csp->flags |= CSP_FLAG_FORCED;
939 #endif /* def FEATURE_FORCE_LOAD */
941 parse_http_request(req, http, csp);
946 if (http->cmd == NULL)
948 strcpy(buf, CHEADER);
949 write_socket(csp->cfd, buf, strlen(buf));
951 log_error(LOG_LEVEL_CLF, "%s - - [%T] \" \" 400 0", csp->ip_addr_str);
953 free_http_request(http);
957 /* decide how to route the HTTP request */
959 if ((fwd = forward_url(http, csp)) == NULL)
961 log_error(LOG_LEVEL_FATAL, "gateway spec is NULL!?!? This can't happen!");
962 /* Never get here - LOG_LEVEL_FATAL causes program exit */
965 /* build the http request to send to the server
966 * we have to do one of the following:
968 * create = use the original HTTP request to create a new
969 * HTTP request that has either the path component
970 * without the http://domainspec (w/path) or the
971 * full orininal URL (w/url)
972 * Note that the path and/or the HTTP version may
973 * have been altered by now.
975 * connect = Open a socket to the host:port of the server
976 * and short-circuit server and client socket.
978 * pass = Pass the request unchanged if forwarding a CONNECT
979 * request to a parent proxy. Note that we'll be sending
980 * the CFAIL message ourselves if connecting to the parent
981 * fails, but we won't send a CSUCCEED message if it works,
982 * since that would result in a double message (ours and the
983 * parent's). After sending the request to the parent, we simply
989 * +--------+--------+
991 * 0 | create | connect|
993 * Forwarding +--------+--------+
995 * 1 | create | pass |
997 * +--------+--------+
1002 * Determine the actions for this URL
1004 #ifdef FEATURE_TOGGLE
1005 if (!(csp->flags & CSP_FLAG_TOGGLED_ON))
1007 /* Most compatible set of actions (i.e. none) */
1008 init_current_action(csp->action);
1011 #endif /* ndef FEATURE_TOGGLE */
1013 url_actions(http, csp);
1018 * Check if a CONNECT request is allowable:
1019 * In the absence of a +limit-connect action, allow only port 443.
1020 * If there is an action, allow whatever matches the specificaton.
1024 if( ( !(csp->action->flags & ACTION_LIMIT_CONNECT) && csp->http->port != 443)
1025 || (csp->action->flags & ACTION_LIMIT_CONNECT
1026 && !match_portlist(csp->action->string[ACTION_STRING_LIMIT_CONNECT], csp->http->port)) )
1028 if (csp->action->flags & ACTION_TREAT_FORBIDDEN_CONNECTS_LIKE_BLOCKS)
1030 /* The response will violate the specs, but makes unblocking easier. */
1031 log_error(LOG_LEVEL_ERROR, "Marking suspicious CONNECT request from %s for blocking.",
1033 csp->action->flags |= ACTION_BLOCK;
1038 strcpy(buf, CFORBIDDEN);
1039 write_socket(csp->cfd, buf, strlen(buf));
1040 log_error(LOG_LEVEL_CONNECT, "Denying suspicious CONNECT request from %s", csp->ip_addr_str);
1041 log_error(LOG_LEVEL_CLF, "%s - - [%T] \" \" 403 0", csp->ip_addr_str);
1049 * Downgrade http version from 1.1 to 1.0 if +downgrade
1052 if ( (http->ssl == 0)
1053 && (!strcmpic(http->ver, "HTTP/1.1"))
1054 && (csp->action->flags & ACTION_DOWNGRADE))
1057 http->ver = strdup("HTTP/1.0");
1059 if (http->ver == NULL)
1061 log_error(LOG_LEVEL_FATAL, "Out of memory downgrading HTTP version");
1066 * Save a copy of the original request for logging
1068 http->ocmd = strdup(http->cmd);
1070 if (http->ocmd == NULL)
1072 log_error(LOG_LEVEL_FATAL, "Out of memory copying HTTP request line");
1076 * (Re)build the HTTP request for non-SSL requests.
1077 * If forwarding, use the whole URL, else, use only the path.
1083 http->cmd = strdup(http->gpc);
1084 string_append(&http->cmd, " ");
1086 if (fwd->forward_host)
1088 string_append(&http->cmd, http->url);
1092 string_append(&http->cmd, http->path);
1094 string_append(&http->cmd, " ");
1095 string_append(&http->cmd, http->ver);
1097 if (http->cmd == NULL)
1099 log_error(LOG_LEVEL_FATAL, "Out of memory writing HTTP command");
1101 log_error(LOG_LEVEL_HEADER, "New HTTP Request-Line: %s", http->cmd);
1103 enlist(csp->headers, http->cmd);
1107 * If the user has not supplied any wafers, and the user has not
1108 * told us to suppress the vanilla wafer, then send the vanilla wafer.
1110 if (list_is_empty(csp->action->multi[ACTION_MULTI_WAFER])
1111 && ((csp->action->flags & ACTION_VANILLA_WAFER) != 0))
1113 enlist(csp->action->multi[ACTION_MULTI_WAFER], VANILLA_WAFER);
1117 #ifdef FEATURE_KILL_POPUPS
1118 block_popups = ((csp->action->flags & ACTION_NO_POPUPS) != 0);
1119 #endif /* def FEATURE_KILL_POPUPS */
1121 pcrs_filter = (csp->rlist != NULL) && /* There are expressions to be used */
1122 (!list_is_empty(csp->action->multi[ACTION_MULTI_FILTER]));
1124 gif_deanimate = ((csp->action->flags & ACTION_DEANIMATE) != 0);
1126 jpeg_inspect = ((csp->action->flags & ACTION_JPEG_INSPECT) != 0);
1128 /* grab the rest of the client's headers */
1132 if ( ( ( p = get_header(csp) ) != NULL) && ( *p == '\0' ) )
1134 len = read_socket(csp->cfd, buf, sizeof(buf));
1137 log_error(LOG_LEVEL_ERROR, "read from client failed: %E");
1142 * If there is no memory left for buffering the
1143 * request, there is nothing we can do but hang up
1145 if (add_to_iob(csp, buf, len))
1152 if (p == NULL) break;
1154 enlist(csp->headers, p);
1159 * We have a request. Now, check to see if we need to
1160 * intercept it, i.e. If ..
1164 /* We may not forward the request by rfc2616 sect 14.31 */
1165 (NULL != (rsp = direct_response(csp)))
1167 /* or a CGI call was detected and answered */
1168 || (NULL != (rsp = dispatch_cgi(csp)))
1170 /* or we are enabled and... */
1171 || (IS_ENABLED_AND (
1173 /* ..the request was blocked */
1174 ( NULL != (rsp = block_url(csp)))
1176 /* ..or untrusted */
1177 #ifdef FEATURE_TRUST
1178 || ( NULL != (rsp = trust_url(csp)))
1179 #endif /* def FEATURE_TRUST */
1181 /* ..or a fast redirect kicked in */
1182 #ifdef FEATURE_FAST_REDIRECTS
1183 || (((csp->action->flags & ACTION_FAST_REDIRECTS) != 0) &&
1184 (NULL != (rsp = redirect_url(csp))))
1185 #endif /* def FEATURE_FAST_REDIRECTS */
1189 /* Write the answer to the client */
1190 if (write_socket(csp->cfd, rsp->head, rsp->head_length)
1191 || write_socket(csp->cfd, rsp->body, rsp->content_length))
1193 log_error(LOG_LEVEL_ERROR, "write to: %s failed: %E", http->host);
1196 #ifdef FEATURE_STATISTICS
1197 /* Count as a rejected request */
1198 csp->flags |= CSP_FLAG_REJECTED;
1199 #endif /* def FEATURE_STATISTICS */
1201 /* Log (FIXME: All intercept reasons appear as "crunch" with Status 200) */
1202 log_error(LOG_LEVEL_GPC, "%s%s crunch!", http->hostport, http->path);
1203 log_error(LOG_LEVEL_CLF, "%s - - [%T] \"%s\" 200 3", csp->ip_addr_str, http->ocmd);
1205 /* Clean up and return */
1206 free_http_response(rsp);
1210 hdr = sed(client_patterns, add_client_headers, csp);
1213 /* FIXME Should handle error properly */
1214 log_error(LOG_LEVEL_FATAL, "Out of memory parsing client header");
1217 list_remove_all(csp->headers);
1219 log_error(LOG_LEVEL_GPC, "%s%s", http->hostport, http->path);
1221 if (fwd->forward_host)
1223 log_error(LOG_LEVEL_CONNECT, "via %s:%d to: %s",
1224 fwd->forward_host, fwd->forward_port, http->hostport);
1228 log_error(LOG_LEVEL_CONNECT, "to %s", http->hostport);
1231 /* here we connect to the server, gateway, or the forwarder */
1233 while ( (csp->sfd = forwarded_connect(fwd, http, csp))
1234 && (errno == EINVAL) && (socks_retries++ < 3))
1236 log_error(LOG_LEVEL_ERROR, "failed request #%u to connect to %s. Trying again.",
1237 socks_retries, http->hostport);
1240 if (csp->sfd == JB_INVALID_SOCKET)
1242 log_error(LOG_LEVEL_CONNECT, "connect to: %s failed: %E",
1245 if (errno == EINVAL)
1247 rsp = error_response(csp, "no-such-domain", errno);
1249 log_error(LOG_LEVEL_CLF, "%s - - [%T] \"%s\" 404 0",
1250 csp->ip_addr_str, http->ocmd);
1254 rsp = error_response(csp, "connect-failed", errno);
1256 log_error(LOG_LEVEL_CLF, "%s - - [%T] \"%s\" 503 0",
1257 csp->ip_addr_str, http->ocmd);
1261 /* Write the answer to the client */
1264 if (write_socket(csp->cfd, rsp->head, rsp->head_length)
1265 || write_socket(csp->cfd, rsp->body, rsp->content_length))
1267 log_error(LOG_LEVEL_ERROR, "write to: %s failed: %E", http->host);
1271 free_http_response(rsp);
1276 log_error(LOG_LEVEL_CONNECT, "OK");
1278 if (fwd->forward_host || (http->ssl == 0))
1280 /* write the client's (modified) header to the server
1281 * (along with anything else that may be in the buffer)
1284 if (write_socket(csp->sfd, hdr, strlen(hdr))
1285 || (flush_socket(csp->sfd, csp) < 0))
1287 log_error(LOG_LEVEL_CONNECT, "write header to: %s failed: %E",
1290 log_error(LOG_LEVEL_CLF, "%s - - [%T] \"%s\" 503 0",
1291 csp->ip_addr_str, http->ocmd);
1293 rsp = error_response(csp, "connect-failed", errno);
1297 if (write_socket(csp->cfd, rsp->head, rsp->head_length)
1298 || write_socket(csp->cfd, rsp->body, rsp->content_length))
1300 log_error(LOG_LEVEL_ERROR, "write to: %s failed: %E", http->host);
1304 free_http_response(rsp);
1312 * We're running an SSL tunnel and we're not forwarding,
1313 * so just send the "connect succeeded" message to the
1314 * client, flush the rest, and get out of the way.
1316 log_error(LOG_LEVEL_CLF, "%s - - [%T] \"%s\" 200 2\n",
1317 csp->ip_addr_str, http->ocmd);
1319 if (write_socket(csp->cfd, CSUCCEED, sizeof(CSUCCEED)-1))
1327 /* we're finished with the client's header */
1330 maxfd = ( csp->cfd > csp->sfd ) ? csp->cfd : csp->sfd;
1332 /* pass data between the client and server
1333 * until one or the other shuts down the connection.
1342 * FD_ZERO here seems to point to an errant macro which crashes.
1343 * So do this by hand for now...
1345 memset(&rfds,0x00,sizeof(fd_set));
1349 FD_SET(csp->cfd, &rfds);
1350 FD_SET(csp->sfd, &rfds);
1352 n = select((int)maxfd+1, &rfds, NULL, NULL, NULL);
1356 log_error(LOG_LEVEL_ERROR, "select() failed!: %E");
1360 /* this is the body of the browser's request
1361 * just read it and write it.
1364 if (FD_ISSET(csp->cfd, &rfds))
1366 len = read_socket(csp->cfd, buf, sizeof(buf));
1370 break; /* "game over, man" */
1373 if (write_socket(csp->sfd, buf, (size_t)len))
1375 log_error(LOG_LEVEL_ERROR, "write to: %s failed: %E", http->host);
1382 * The server wants to talk. It could be the header or the body.
1383 * If `hdr' is null, then it's the header otherwise it's the body.
1384 * FIXME: Does `hdr' really mean `host'? No.
1388 if (FD_ISSET(csp->sfd, &rfds))
1391 len = read_socket(csp->sfd, buf, sizeof(buf) - 1);
1395 log_error(LOG_LEVEL_ERROR, "read from: %s failed: %E", http->host);
1397 log_error(LOG_LEVEL_CLF, "%s - - [%T] \"%s\" 503 0",
1398 csp->ip_addr_str, http->ocmd);
1400 rsp = error_response(csp, "connect-failed", errno);
1404 if (write_socket(csp->cfd, rsp->head, rsp->head_length)
1405 || write_socket(csp->cfd, rsp->body, rsp->content_length))
1407 log_error(LOG_LEVEL_ERROR, "write to: %s failed: %E", http->host);
1411 free_http_response(rsp);
1415 /* Add a trailing zero. This lets filter_popups
1416 * use string operations.
1420 #ifdef FEATURE_KILL_POPUPS
1421 /* Filter the popups on this read. */
1422 if (block_popups_now)
1424 filter_popups(buf, csp);
1426 #endif /* def FEATURE_KILL_POPUPS */
1428 /* Normally, this would indicate that we've read
1429 * as much as the server has sent us and we can
1430 * close the client connection. However, Microsoft
1431 * in its wisdom has released IIS/5 with a bug that
1432 * prevents it from sending the trailing \r\n in
1433 * a 302 redirect header (and possibly other headers).
1434 * To work around this if we've haven't parsed
1435 * a full header we'll append a trailing \r\n
1436 * and see if this now generates a valid one.
1438 * This hack shouldn't have any impacts. If we've
1439 * already transmitted the header or if this is a
1440 * SSL connection, then we won't bother with this
1441 * hack. So we only work on partially received
1442 * headers. If we append a \r\n and this still
1443 * doesn't generate a valid header, then we won't
1444 * transmit anything to the client.
1449 if (server_body || http->ssl)
1452 * If we have been buffering up the document,
1453 * now is the time to apply content modification
1454 * and send the result to the client.
1459 * If the content filter fails, use the original
1460 * buffer and length.
1461 * (see p != NULL ? p : csp->iob->cur below)
1463 if (NULL == (p = (*content_filter)(csp)))
1465 csp->content_length = csp->iob->eod - csp->iob->cur;
1468 hdr = sed(server_patterns_light, NULL, csp);
1472 /* FIXME Should handle error properly */
1473 log_error(LOG_LEVEL_FATAL, "Out of memory parsing server header");
1476 if (write_socket(csp->cfd, hdr, strlen(hdr))
1477 || write_socket(csp->cfd, p != NULL ? p : csp->iob->cur, csp->content_length))
1479 log_error(LOG_LEVEL_ERROR, "write modified content to client failed: %E");
1489 break; /* "game over, man" */
1493 * This is NOT the body, so
1494 * Let's pretend the server just sent us a blank line.
1496 len = sprintf(buf, "\r\n");
1499 * Now, let the normal header parsing algorithm below do its
1500 * job. If it fails, we'll exit instead of continuing.
1507 * If this is an SSL connection or we're in the body
1508 * of the server document, just write it to the client,
1509 * unless we need to buffer the body for later content-filtering
1512 if (server_body || http->ssl)
1517 * If there is no memory left for buffering the content, or the buffer limit
1518 * has been reached, switch to non-filtering mode, i.e. make & write the
1519 * header, flush the iob and buf, and get out of the way.
1521 if (add_to_iob(csp, buf, len))
1526 log_error(LOG_LEVEL_ERROR, "Flushing header and buffers. Stepping back from filtering.");
1528 hdr = sed(server_patterns, add_server_headers, csp);
1532 * Memory is too tight to even generate the header.
1533 * Send our static "Out-of-memory" page.
1535 log_error(LOG_LEVEL_ERROR, "Out of memory while trying to flush.");
1536 rsp = cgi_error_memory();
1538 if (write_socket(csp->cfd, rsp->head, rsp->head_length)
1539 || write_socket(csp->cfd, rsp->body, rsp->content_length))
1541 log_error(LOG_LEVEL_ERROR, "write to: %s failed: %E", http->host);
1546 hdrlen = strlen(hdr);
1548 if (write_socket(csp->cfd, hdr, hdrlen)
1549 || ((flushed = flush_socket(csp->cfd, csp)) < 0)
1550 || (write_socket(csp->cfd, buf, (size_t) len)))
1552 log_error(LOG_LEVEL_CONNECT, "Flush header and buffers to client failed: %E");
1558 byte_count += hdrlen + flushed + len;
1560 content_filter = NULL;
1567 if (write_socket(csp->cfd, buf, (size_t)len))
1569 log_error(LOG_LEVEL_ERROR, "write to client failed: %E");
1578 /* we're still looking for the end of the
1579 * server's header ... (does that make header
1580 * parsing an "out of body experience" ?
1584 * buffer up the data we just read. If that fails,
1585 * there's little we can do but send our static
1586 * out-of-memory page.
1588 if (add_to_iob(csp, buf, len))
1590 log_error(LOG_LEVEL_ERROR, "Out of memory while looking for end of server headers.");
1591 rsp = cgi_error_memory();
1593 if (write_socket(csp->cfd, rsp->head, rsp->head_length)
1594 || write_socket(csp->cfd, rsp->body, rsp->content_length))
1596 log_error(LOG_LEVEL_ERROR, "write to: %s failed: %E", http->host);
1601 /* get header lines from the iob */
1603 while ((p = get_header(csp)) != NULL)
1607 /* see following note */
1610 enlist(csp->headers, p);
1614 /* NOTE: there are no "empty" headers so
1615 * if the pointer `p' is not NULL we must
1616 * assume that we reached the end of the
1617 * buffer before we hit the end of the header.
1624 /* Well, we tried our MS IIS/5
1625 * hack and it didn't work.
1626 * The header is incomplete
1627 * and there isn't anything
1628 * we can do about it.
1634 /* Since we have to wait for
1635 * more from the server before
1636 * we can parse the headers
1637 * we just continue here.
1643 /* we have now received the entire header.
1644 * filter it and send the result to the client
1647 hdr = sed(server_patterns, add_server_headers, csp);
1650 /* FIXME Should handle error properly */
1651 log_error(LOG_LEVEL_FATAL, "Out of memory parsing server header");
1654 #ifdef FEATURE_KILL_POPUPS
1655 /* Start blocking popups if appropriate. */
1657 if ((csp->content_type & CT_TEXT) && /* It's a text / * MIME-Type */
1658 !http->ssl && /* We talk plaintext */
1659 block_popups) /* Policy allows */
1661 block_popups_now = 1;
1663 * Filter the part of the body that came in the same read
1664 * as the last headers:
1666 filter_popups(csp->iob->cur, csp);
1669 #endif /* def FEATURE_KILL_POPUPS */
1671 /* Buffer and pcrs filter this if appropriate. */
1673 if ((csp->content_type & CT_TEXT) && /* It's a text / * MIME-Type */
1674 !http->ssl && /* We talk plaintext */
1675 pcrs_filter) /* Policy allows */
1677 content_filter = pcrs_filter_response;
1680 /* Buffer and gif_deanimate this if appropriate. */
1682 if ((csp->content_type & CT_GIF) && /* It's an image/gif MIME-Type */
1683 !http->ssl && /* We talk plaintext */
1684 gif_deanimate) /* Policy allows */
1686 content_filter = gif_deanimate_response;
1689 /* Buffer and jpg_inspect this if appropriate. */
1691 if ((csp->content_type & CT_JPEG) && /* It's an image/jpeg MIME-Type */
1692 !http->ssl && /* We talk plaintext */
1693 jpeg_inspect) /* Policy allows */
1695 content_filter = jpeg_inspect_response;
1699 * Only write if we're not buffering for content modification
1701 if (!content_filter)
1703 /* write the server's (modified) header to
1704 * the client (along with anything else that
1705 * may be in the buffer)
1708 if (write_socket(csp->cfd, hdr, strlen(hdr))
1709 || ((len = flush_socket(csp->cfd, csp)) < 0))
1711 log_error(LOG_LEVEL_CONNECT, "write header to client failed: %E");
1713 /* the write failed, so don't bother
1714 * mentioning it to the client...
1715 * it probably can't hear us anyway.
1724 /* we're finished with the server's header */
1729 /* If this was a MS IIS/5 hack then it means
1730 * the server has already closed the
1731 * connection. Nothing more to read. Time
1742 return; /* huh? we should never get here */
1745 log_error(LOG_LEVEL_CLF, "%s - - [%T] \"%s\" 200 %d",
1746 csp->ip_addr_str, http->ocmd, byte_count);
1750 /*********************************************************************
1754 * Description : This is little more than chat. We only "serve" to
1755 * to close any socket that chat may have opened.
1758 * 1 : csp = Current client state (buffers, headers, etc...)
1762 *********************************************************************/
1764 void serve(struct client_state *csp)
1765 #else /* ifndef AMIGA */
1766 static void serve(struct client_state *csp)
1767 #endif /* def AMIGA */
1770 close_socket(csp->cfd);
1772 if (csp->sfd != JB_INVALID_SOCKET)
1774 close_socket(csp->sfd);
1777 csp->flags &= ~CSP_FLAG_ACTIVE;
1783 /*********************************************************************
1785 * Function : server_thread
1787 * Description : We only exist to call `serve' in a threaded environment.
1790 * 1 : data = Current client state (buffers, headers, etc...)
1792 * Returns : Always 0.
1794 *********************************************************************/
1795 static int32 server_thread(void *data)
1797 serve((struct client_state *) data);
1804 /*********************************************************************
1808 * Description : Print usage info & exit.
1810 * Parameters : Pointer to argv[0] for identifying ourselves
1814 *********************************************************************/
1815 void usage(const char *myname)
1817 printf("Privoxy version " VERSION " (" HOME_PAGE_URL ")\n"
1819 "Usage: %s [--help] [--version] [configfile]\n"
1821 "Usage: %s [--help] [--version] [--no-daemon] [--pidfile pidfile] [--user user[.group]] [configfile]\n"
1823 "Aborting.\n", myname);
1830 /*********************************************************************
1834 * Description : Load the config file and start the listen loop.
1835 * This function is a lot more *sane* with the `load_config'
1836 * and `listen_loop' functions; although it stills does
1837 * a *little* too much for my taste.
1840 * 1 : argc = Number of parameters (including $0).
1841 * 2 : argv = Array of (char *)'s to the parameters.
1843 * Returns : 1 if : can't open config file, unrecognized directive,
1844 * stats requested in multi-thread mode, can't open the
1845 * log file, can't open the jar file, listen port is invalid,
1846 * any load fails, and can't bind port.
1848 * Else main never returns, the process must be signaled
1849 * to terminate execution. Or, on Windows, use the
1850 * "File", "Exit" menu option.
1852 *********************************************************************/
1854 int real_main(int argc, const char *argv[])
1856 int main(int argc, const char *argv[])
1861 struct passwd *pw = NULL;
1862 struct group *grp = NULL;
1871 #if !defined(_WIN32)
1879 * Parse the command line arguments
1881 while (++argc_pos < argc)
1884 /* Check to see if the service must be installed or uninstalled */
1885 if (strncmp(argv[argc_pos], "--install", 9) == 0)
1887 const char *pName = argv[argc_pos] + 9;
1890 exit( (install_service(pName)) ? 0 : 1 );
1892 else if (strncmp(argv[argc_pos], "--uninstall", + 11) == 0)
1894 const char *pName = argv[argc_pos] + 11;
1897 exit((uninstall_service(pName)) ? 0 : 1);
1899 else if (strcmp(argv[argc_pos], "--service" ) == 0)
1901 bRunAsService = TRUE;
1902 w32_set_service_cwd();
1903 atexit(w32_service_exit_notify);
1906 #endif /* defined(_WIN32) */
1909 #if !defined(_WIN32) || defined(_WIN_CONSOLE)
1911 if (strcmp(argv[argc_pos], "--help") == 0)
1916 else if(strcmp(argv[argc_pos], "--version") == 0)
1918 printf("Privoxy version " VERSION " (" HOME_PAGE_URL ")\n");
1924 else if (strcmp(argv[argc_pos], "--no-daemon" ) == 0)
1929 else if (strcmp(argv[argc_pos], "--pidfile" ) == 0)
1931 if (++argc_pos == argc) usage(argv[0]);
1932 pidfile = strdup(argv[argc_pos]);
1935 else if (strcmp(argv[argc_pos], "--user" ) == 0)
1937 if (++argc_pos == argc) usage(argv[argc_pos]);
1939 if ((NULL != (p = strchr(argv[argc_pos], '.'))) && *(p + 1) != '0')
1942 if (NULL == (grp = getgrnam(p)))
1944 log_error(LOG_LEVEL_FATAL, "Group %s not found.", p);
1948 if (NULL == (pw = getpwnam(argv[argc_pos])))
1950 log_error(LOG_LEVEL_FATAL, "User %s not found.", argv[argc_pos]);
1953 if (p != NULL) *--p = '\0';
1956 else if (strcmp(argv[argc_pos], "--chroot" ) == 0)
1961 #endif /* defined(unix) */
1962 #endif /* defined(_WIN32) && !defined(_WIN_CONSOLE) */
1964 configfile = argv[argc_pos];
1967 } /* -END- while (more arguments) */
1970 if ( *configfile != '/' )
1972 char *abs_file, cwd[1024];
1974 /* make config-filename absolute here */
1975 if ( !(getcwd(cwd, sizeof(cwd))))
1977 perror("get working dir failed");
1981 if (!(basedir = strdup(cwd))
1982 || (!(abs_file = malloc( strlen( basedir ) + strlen( configfile ) + 5 ))))
1984 perror("malloc failed");
1987 strcpy( abs_file, basedir );
1988 strcat( abs_file, "/" );
1989 strcat( abs_file, configfile );
1990 configfile = abs_file;
1992 #endif /* defined unix */
1996 clients->next = NULL;
2000 #elif defined(_WIN32)
2006 * Prepare global mutex semaphores
2008 pthread_mutex_init(&gmtime_mutex,0);
2009 pthread_mutex_init(&localtime_mutex,0);
2010 pthread_mutex_init(&gethostbyaddr_mutex,0);
2011 pthread_mutex_init(&gethostbyname_mutex,0);
2012 #endif /* def OSX_DARWIN */
2014 #ifdef FEATURE_PTHREAD
2015 pthread_mutex_init(&log_mutex,0);
2016 pthread_mutex_init(&log_init_mutex,0);
2017 #endif /* FEATURE_PTHREAD */
2020 * Unix signal handling
2022 * Catch the abort, interrupt and terminate signals for a graceful exit
2023 * Catch the hangup signal so the errlog can be reopened.
2024 * Ignore the broken pipe signals (FIXME: Why?)
2026 #if !defined(_WIN32) && !defined(__OS2__) && !defined(AMIGA)
2029 const int catched_signals[] = { SIGABRT, SIGTERM, SIGINT, SIGHUP, 0 };
2030 const int ignored_signals[] = { SIGPIPE, 0 };
2032 for (idx = 0; catched_signals[idx] != 0; idx++)
2034 if (signal(catched_signals[idx], sig_handler) == SIG_ERR)
2036 log_error(LOG_LEVEL_FATAL, "Can't set signal-handler for signal %d: %E", catched_signals[idx]);
2040 for (idx = 0; ignored_signals[idx] != 0; idx++)
2042 if (signal(ignored_signals[idx], SIG_IGN) == SIG_ERR)
2044 log_error(LOG_LEVEL_FATAL, "Can't set ignore-handler for signal %d: %E", ignored_signals[idx]);
2049 #else /* ifdef _WIN32 */
2050 # ifdef _WIN_CONSOLE
2052 * We *are* in a windows console app.
2053 * Print a verbose messages about FAQ's and such
2055 printf(win32_blurb);
2056 # endif /* def _WIN_CONSOLE */
2057 #endif /* def _WIN32 */
2060 /* Initialize the CGI subsystem */
2061 cgi_init_error_messages();
2064 * If runnig on unix and without the --nodaemon
2065 * option, become a daemon. I.e. fork, detach
2066 * from tty and get process group leadership
2079 if ( pid < 0 ) /* error */
2084 else if ( pid != 0 ) /* parent */
2089 * must check for errors
2090 * child died due to missing files aso
2093 wpid = waitpid( pid, &status, WNOHANG );
2102 /* Should be more portable, but not as well tested */
2107 #else /* ndef __FreeBSD__ */
2109 #endif /* ndef __FreeBSD__ */
2110 fd = open("/dev/tty", O_RDONLY);
2113 /* no error check here */
2114 ioctl( fd, TIOCNOTTY,0 );
2118 /* FIXME: should close stderr (fd 2) here too, but the test
2120 * and load config file is done in listen_loop() and puts
2121 * some messages on stderr there.
2128 } /* -END- if (!no_daemon) */
2131 * As soon as we have written the PID file, we can switch
2132 * to the user and group ID indicated by the --user option
2138 if (((NULL != grp) && setgid(grp->gr_gid)) || (setgid(pw->pw_gid)))
2140 log_error(LOG_LEVEL_FATAL, "Cannot setgid(): Insufficient permissions.");
2146 log_error(LOG_LEVEL_FATAL, "Home directory for %s undefined", pw->pw_name);
2148 if (chroot(pw->pw_dir) < 0)
2150 log_error(LOG_LEVEL_FATAL, "Cannot chroot to %s", pw->pw_dir);
2154 log_error(LOG_LEVEL_FATAL, "Cannot chdir /");
2157 if (setuid(pw->pw_uid))
2159 log_error(LOG_LEVEL_FATAL, "Cannot setuid(): Insufficient permissions.");
2163 char putenv_dummy[64];
2165 strcpy(putenv_dummy, "HOME=/");
2166 if (putenv(putenv_dummy) != 0)
2168 log_error(LOG_LEVEL_FATAL, "Cannot putenv(): HOME");
2171 snprintf(putenv_dummy, 64, "USER=%s", pw->pw_name);
2172 if (putenv(putenv_dummy) != 0)
2174 log_error(LOG_LEVEL_FATAL, "Cannot putenv(): USER");
2180 log_error(LOG_LEVEL_FATAL, "Cannot chroot without --user argument.");
2183 #endif /* defined unix */
2186 /* This will be FALSE unless the command line specified --service
2190 /* Yup, so now we must attempt to establish a connection
2191 * with the service dispatcher. This will only work if this
2192 * process was launched by the service control manager to
2193 * actually run as a service. If this isn't the case, i've
2194 * known it take around 30 seconds or so for the call to return.
2197 /* The StartServiceCtrlDispatcher won't return until the service is stopping */
2198 if (w32_start_service_ctrl_dispatcher(w32ServiceDispatchTable))
2200 /* Service has run, and at this point is now being stopped, so just return */
2205 printf("Warning: Failed to connect to Service Control Dispatcher\nwhen starting as a service!\n");
2207 /* An error occurred. Usually it's because --service was wrongly specified
2208 * and we were unable to connect to the Service Control Dispatcher because
2209 * it wasn't expecting us and is therefore not listening.
2211 * For now, just continue below to call the listen_loop function.
2214 #endif /* def _WIN32 */
2224 /*********************************************************************
2226 * Function : bind_port_helper
2228 * Description : Bind the listen port. Handles logging, and aborts
2232 * 1 : config = Privoxy configuration. Specifies port
2235 * Returns : Port that was opened.
2237 *********************************************************************/
2238 static jb_socket bind_port_helper(struct configuration_spec * config)
2243 if ( (config->haddr != NULL)
2244 && (config->haddr[0] == '1')
2245 && (config->haddr[1] == '2')
2246 && (config->haddr[2] == '7')
2247 && (config->haddr[3] == '.') )
2249 log_error(LOG_LEVEL_INFO, "Listening on port %d for local connections only",
2252 else if (config->haddr == NULL)
2254 log_error(LOG_LEVEL_INFO, "Listening on port %d on all IP addresses",
2259 log_error(LOG_LEVEL_INFO, "Listening on port %d on IP address %s",
2260 config->hport, config->haddr);
2263 result = bind_port(config->haddr, config->hport, &bfd);
2270 log_error(LOG_LEVEL_FATAL, "can't bind to %s:%d: "
2271 "There may be another Privoxy or some other "
2272 "proxy running on port %d",
2273 (NULL != config->haddr) ? config->haddr : "INADDR_ANY",
2274 config->hport, config->hport);
2277 log_error(LOG_LEVEL_FATAL, "can't bind to %s:%d: "
2278 "The hostname is not resolvable",
2279 (NULL != config->haddr) ? config->haddr : "INADDR_ANY", config->hport);
2282 log_error(LOG_LEVEL_FATAL, "can't bind to %s:%d: because %E",
2283 (NULL != config->haddr) ? config->haddr : "INADDR_ANY", config->hport);
2286 /* shouldn't get here */
2287 return JB_INVALID_SOCKET;
2290 config->need_bind = 0;
2297 /* Without this simple workaround we get this compiler warning from _beginthread
2298 * warning C4028: formal parameter 1 different from declaration
2300 void w32_service_listen_loop(void *p)
2304 #endif /* def _WIN32 */
2307 /*********************************************************************
2309 * Function : listen_loop
2311 * Description : bind the listen port and enter a "FOREVER" listening loop.
2317 *********************************************************************/
2318 static void listen_loop(void)
2320 struct client_state *csp = NULL;
2322 struct configuration_spec * config;
2324 config = load_config();
2326 bfd = bind_port_helper(config);
2328 #ifdef FEATURE_GRACEFUL_TERMINATION
2329 while (!g_terminate)
2334 #if !defined(FEATURE_PTHREAD) && !defined(_WIN32) && !defined(__BEOS__) && !defined(AMIGA) && !defined(__OS2__)
2335 while (waitpid(-1, NULL, WNOHANG) > 0)
2337 /* zombie children */
2339 #endif /* !defined(FEATURE_PTHREAD) && !defined(_WIN32) && !defined(__BEOS__) && !defined(AMIGA) */
2342 * Free data that was used by died threads
2348 * Re-open the errlog after HUP signal
2350 if (received_hup_signal)
2352 init_error_log(Argv[0], config->logfile, config->debug);
2353 received_hup_signal = 0;
2358 #ifdef FEATURE_COOKIE_JAR
2360 * Need a workaround here: we have to fclose() the jarfile, or we die because it's
2361 * already open. I think unload_configfile() is not being run, which should do
2362 * this work. Until that can get resolved, we'll use this workaround.
2366 if (csp->config->jar)
2368 fclose(csp->config->jar);
2369 csp->config->jar = NULL;
2371 #endif /* FEATURE_COOKIE_JAR */
2372 #endif /* __OS2__ */
2374 if ( NULL == (csp = (struct client_state *) zalloc(sizeof(*csp))) )
2376 log_error(LOG_LEVEL_FATAL, "malloc(%d) for csp failed: %E", sizeof(*csp));
2380 csp->flags |= CSP_FLAG_ACTIVE;
2381 csp->sfd = JB_INVALID_SOCKET;
2383 csp->config = config = load_config();
2385 if ( config->need_bind )
2388 * Since we were listening to the "old port", we will not see
2389 * a "listen" param change until the next IJB request. So, at
2390 * least 1 more request must be made for us to find the new
2391 * setting. I am simply closing the old socket and binding the
2394 * Which-ever is correct, we will serve 1 more page via the
2395 * old settings. This should probably be a "show-proxy-args"
2396 * request. This should not be a so common of an operation
2397 * that this will hurt people's feelings.
2402 bfd = bind_port_helper(config);
2405 log_error(LOG_LEVEL_CONNECT, "accept connection ... ");
2407 if (!accept_connection(csp, bfd))
2409 log_error(LOG_LEVEL_CONNECT, "accept failed: %E");
2422 log_error(LOG_LEVEL_CONNECT, "OK");
2425 #ifdef FEATURE_TOGGLE
2426 if (global_toggle_state)
2428 csp->flags |= CSP_FLAG_TOGGLED_ON;
2430 #endif /* def FEATURE_TOGGLE */
2432 if (run_loader(csp))
2434 log_error(LOG_LEVEL_FATAL, "a loader failed - must exit");
2435 /* Never get here - LOG_LEVEL_FATAL causes program exit */
2439 if (block_acl(NULL,csp))
2441 log_error(LOG_LEVEL_CONNECT, "Connection dropped due to ACL");
2442 close_socket(csp->cfd);
2446 #endif /* def FEATURE_ACL */
2448 /* add it to the list of clients */
2449 csp->next = clients->next;
2450 clients->next = csp;
2452 if (config->multi_threaded)
2456 /* this is a switch () statment in the C preprocessor - ugh */
2457 #undef SELECTED_ONE_OPTION
2459 /* Use Pthreads in preference to native code */
2460 #if defined(FEATURE_PTHREAD) && !defined(SELECTED_ONE_OPTION)
2461 #define SELECTED_ONE_OPTION
2463 pthread_t the_thread;
2464 pthread_attr_t attrs;
2466 pthread_attr_init(&attrs);
2467 pthread_attr_setdetachstate(&attrs, PTHREAD_CREATE_DETACHED);
2468 errno = pthread_create(&the_thread, &attrs,
2470 child_id = errno ? -1 : 0;
2471 pthread_attr_destroy(&attrs);
2475 #if defined(_WIN32) && !defined(_CYGWIN) && !defined(SELECTED_ONE_OPTION)
2476 #define SELECTED_ONE_OPTION
2477 child_id = _beginthread(
2478 (void (*)(void *))serve,
2483 #if defined(__OS2__) && !defined(SELECTED_ONE_OPTION)
2484 #define SELECTED_ONE_OPTION
2485 child_id = _beginthread(
2486 (void(* _Optlink)(void*))serve,
2492 #if defined(__BEOS__) && !defined(SELECTED_ONE_OPTION)
2493 #define SELECTED_ONE_OPTION
2495 thread_id tid = spawn_thread
2496 (server_thread, "server", B_NORMAL_PRIORITY, csp);
2498 if ((tid >= 0) && (resume_thread(tid) == B_OK))
2500 child_id = (int) tid;
2509 #if defined(AMIGA) && !defined(SELECTED_ONE_OPTION)
2510 #define SELECTED_ONE_OPTION
2511 csp->cfd = ReleaseSocket(csp->cfd, -1);
2513 if((child_id = (int)CreateNewProcTags(
2514 NP_Entry, (ULONG)server_thread,
2515 NP_Output, Output(),
2516 NP_CloseOutput, FALSE,
2517 NP_Name, (ULONG)"privoxy child",
2518 NP_StackSize, 200*1024,
2522 ((struct Task *)child_id)->tc_UserData = csp;
2523 Signal((struct Task *)child_id, SIGF_SINGLE);
2528 #if !defined(SELECTED_ONE_OPTION)
2531 /* This block is only needed when using fork().
2532 * When using threads, the server thread was
2533 * created and run by the call to _beginthread().
2535 if (child_id == 0) /* child */
2538 #ifdef FEATURE_TOGGLE
2539 int inherited_toggle_state = global_toggle_state;
2540 #endif /* def FEATURE_TOGGLE */
2545 * If we've been toggled or we've blocked the request, tell Mom
2548 #ifdef FEATURE_TOGGLE
2549 if (inherited_toggle_state != global_toggle_state)
2551 rc |= RC_FLAG_TOGGLED;
2553 #endif /* def FEATURE_TOGGLE */
2555 #ifdef FEATURE_STATISTICS
2556 if (csp->flags & CSP_FLAG_REJECTED)
2558 rc |= RC_FLAG_BLOCKED;
2560 #endif /* ndef FEATURE_STATISTICS */
2564 else if (child_id > 0) /* parent */
2566 /* in a fork()'d environment, the parent's
2567 * copy of the client socket and the CSP
2571 #if !defined(_WIN32) && !defined(__CYGWIN__)
2573 wait( &child_status );
2576 * Evaluate child's return code: If the child has
2577 * - been toggled, toggle ourselves
2578 * - blocked its request, bump up the stats counter
2581 #ifdef FEATURE_TOGGLE
2582 if (WIFEXITED(child_status) && (WEXITSTATUS(child_status) & RC_FLAG_TOGGLED))
2584 global_toggle_state = !global_toggle_state;
2586 #endif /* def FEATURE_TOGGLE */
2588 #ifdef FEATURE_STATISTICS
2590 if (WIFEXITED(child_status) && (WEXITSTATUS(child_status) & RC_FLAG_BLOCKED))
2594 #endif /* def FEATURE_STATISTICS */
2596 #endif /* !defined(_WIN32) && defined(__CYGWIN__) */
2597 close_socket(csp->cfd);
2598 csp->flags &= ~CSP_FLAG_ACTIVE;
2602 #undef SELECTED_ONE_OPTION
2603 /* end of cpp switch () */
2605 if (child_id < 0) /* failed */
2607 char buf[BUFFER_SIZE];
2609 log_error(LOG_LEVEL_ERROR, "can't fork: %E");
2611 sprintf(buf , "Privoxy: can't fork: errno = %d", errno);
2613 write_socket(csp->cfd, buf, strlen(buf));
2614 close_socket(csp->cfd);
2615 csp->flags &= ~CSP_FLAG_ACTIVE;
2626 /* NOTREACHED unless FEATURE_GRACEFUL_TERMINATION is defined */
2628 /* Clean up. Aim: free all memory (no leaks) */
2629 #ifdef FEATURE_GRACEFUL_TERMINATION
2631 log_error(LOG_LEVEL_ERROR, "Graceful termination requested");
2633 unload_current_config_file();
2634 unload_current_actions_file();
2635 unload_current_re_filterfile();
2636 #ifdef FEATURE_TRUST
2637 unload_current_trust_file();
2640 if (config->multi_threaded)
2647 } while ((clients->next != NULL) && (--i > 0));
2651 log_error(LOG_LEVEL_ERROR, "Graceful termination failed - still some live clients after 1 minute wait.");
2662 #ifdef FEATURE_COOKIE_JAR
2663 if (NULL != config->jar)
2665 fclose(config->jar);
2669 #if defined(_WIN32) && !defined(_WIN_CONSOLE)
2670 /* Cleanup - remove taskbar icon etc. */
2675 #endif /* FEATURE_GRACEFUL_TERMINATION */