xref: /PHP-5.5/sapi/apache/php_apache.c (revision 73c1be26)
1 /*
2    +----------------------------------------------------------------------+
3    | PHP Version 5                                                        |
4    +----------------------------------------------------------------------+
5    | Copyright (c) 1997-2015 The PHP Group                                |
6    +----------------------------------------------------------------------+
7    | This source file is subject to version 3.01 of the PHP license,      |
8    | that is bundled with this package in the file LICENSE, and is        |
9    | available through the world-wide-web at the following url:           |
10    | http://www.php.net/license/3_01.txt                                  |
11    | If you did not receive a copy of the PHP license and are unable to   |
12    | obtain it through the world-wide-web, please send a note to          |
13    | license@php.net so we can mail you a copy immediately.               |
14    +----------------------------------------------------------------------+
15    | Authors: Rasmus Lerdorf <rasmus@lerdorf.on.ca>                       |
16    |          Stig S�ther Bakken <ssb@php.net>                            |
17    |          David Sklar <sklar@student.net>                             |
18    +----------------------------------------------------------------------+
19  */
20 /* $Id$ */
21 
22 #include "php_apache_http.h"
23 
24 #if defined(PHP_WIN32) || defined(NETWARE)
25 #include "zend.h"
26 #include "ap_compat.h"
27 #endif
28 
29 #ifdef ZTS
30 int php_apache_info_id;
31 #else
32 php_apache_info_struct php_apache_info;
33 #endif
34 
35 #define SECTION(name)  PUTS("<h2>" name "</h2>\n")
36 
37 #ifndef PHP_WIN32
38 extern module *top_module;
39 extern module **ap_loaded_modules;
40 #else
41 extern  __declspec(dllimport) module *top_module;
42 extern  __declspec(dllimport) module **ap_loaded_modules;
43 #endif
44 
45 PHP_FUNCTION(virtual);
46 PHP_FUNCTION(apache_request_headers);
47 PHP_FUNCTION(apache_response_headers);
48 PHP_FUNCTION(apachelog);
49 PHP_FUNCTION(apache_note);
50 PHP_FUNCTION(apache_lookup_uri);
51 PHP_FUNCTION(apache_child_terminate);
52 PHP_FUNCTION(apache_setenv);
53 PHP_FUNCTION(apache_get_version);
54 PHP_FUNCTION(apache_get_modules);
55 PHP_FUNCTION(apache_reset_timeout);
56 
57 PHP_MINFO_FUNCTION(apache);
58 
59 ZEND_BEGIN_ARG_INFO(arginfo_apache_child_terminate, 0)
60 ZEND_END_ARG_INFO()
61 
62 ZEND_BEGIN_ARG_INFO_EX(arginfo_apache_note, 0, 0, 1)
63 	ZEND_ARG_INFO(0, note_name)
64 	ZEND_ARG_INFO(0, note_value)
65 ZEND_END_ARG_INFO()
66 
67 ZEND_BEGIN_ARG_INFO_EX(arginfo_apache_virtual, 0, 0, 1)
68 	ZEND_ARG_INFO(0, filename)
69 ZEND_END_ARG_INFO()
70 
71 ZEND_BEGIN_ARG_INFO(arginfo_apache_request_headers, 0)
72 ZEND_END_ARG_INFO()
73 
74 ZEND_BEGIN_ARG_INFO(arginfo_apache_response_headers, 0)
75 ZEND_END_ARG_INFO()
76 
77 ZEND_BEGIN_ARG_INFO_EX(arginfo_apache_setenv, 0, 0, 2)
78 	ZEND_ARG_INFO(0, variable)
79 	ZEND_ARG_INFO(0, value)
80 	ZEND_ARG_INFO(0, walk_to_top)
81 ZEND_END_ARG_INFO()
82 
83 ZEND_BEGIN_ARG_INFO_EX(arginfo_apache_lookup_uri, 0, 0, 1)
84 	ZEND_ARG_INFO(0, uri)
85 ZEND_END_ARG_INFO()
86 
87 ZEND_BEGIN_ARG_INFO(arginfo_apache_get_version, 0)
88 ZEND_END_ARG_INFO()
89 
90 ZEND_BEGIN_ARG_INFO(arginfo_apache_get_modules, 0)
91 ZEND_END_ARG_INFO()
92 
93 ZEND_BEGIN_ARG_INFO(arginfo_apache_reset_timeout, 0)
94 ZEND_END_ARG_INFO()
95 
96 
97 
98 const zend_function_entry apache_functions[] = {
99 	PHP_FE(virtual,									arginfo_apache_virtual)
100 	PHP_FE(apache_request_headers,					arginfo_apache_request_headers)
101 	PHP_FE(apache_note,								arginfo_apache_note)
102 	PHP_FE(apache_lookup_uri,						arginfo_apache_lookup_uri)
103 	PHP_FE(apache_child_terminate,					arginfo_apache_child_terminate)
104 	PHP_FE(apache_setenv,							arginfo_apache_setenv)
105 	PHP_FE(apache_response_headers,					arginfo_apache_response_headers)
106 	PHP_FE(apache_get_version,						arginfo_apache_get_version)
107 	PHP_FE(apache_get_modules,						arginfo_apache_get_modules)
108 	PHP_FE(apache_reset_timeout,					arginfo_apache_reset_timeout)
109 	PHP_FALIAS(getallheaders, apache_request_headers, arginfo_apache_request_headers)
110 	{NULL, NULL, NULL}
111 };
112 
113 
114 PHP_INI_BEGIN()
115 	STD_PHP_INI_ENTRY("xbithack",			"0",				PHP_INI_ALL,		OnUpdateLong,		xbithack, php_apache_info_struct, php_apache_info)
116 	STD_PHP_INI_ENTRY("engine",				"1",				PHP_INI_ALL,		OnUpdateLong,		engine, php_apache_info_struct, php_apache_info)
117 	STD_PHP_INI_ENTRY("last_modified",		"0",				PHP_INI_ALL,		OnUpdateLong,		last_modified, php_apache_info_struct, php_apache_info)
118 	STD_PHP_INI_ENTRY("child_terminate",	"0",				PHP_INI_ALL,		OnUpdateLong,		terminate_child, php_apache_info_struct, php_apache_info)
PHP_INI_END()119 PHP_INI_END()
120 
121 
122 
123 static void php_apache_globals_ctor(php_apache_info_struct *apache_globals TSRMLS_DC)
124 {
125 	apache_globals->in_request = 0;
126 }
127 
128 
PHP_MINIT_FUNCTION(apache)129 static PHP_MINIT_FUNCTION(apache)
130 {
131 #ifdef ZTS
132 	ts_allocate_id(&php_apache_info_id, sizeof(php_apache_info_struct), (ts_allocate_ctor) php_apache_globals_ctor, NULL);
133 #else
134 	php_apache_globals_ctor(&php_apache_info TSRMLS_CC);
135 #endif
136 	REGISTER_INI_ENTRIES();
137 	return SUCCESS;
138 }
139 
140 
PHP_MSHUTDOWN_FUNCTION(apache)141 static PHP_MSHUTDOWN_FUNCTION(apache)
142 {
143 	UNREGISTER_INI_ENTRIES();
144 	return SUCCESS;
145 }
146 
147 zend_module_entry apache_module_entry = {
148 	STANDARD_MODULE_HEADER,
149 	"apache",
150 	apache_functions,
151 	PHP_MINIT(apache),
152 	PHP_MSHUTDOWN(apache),
153 	NULL,
154 	NULL,
155 	PHP_MINFO(apache),
156 	NO_VERSION_YET,
157 	STANDARD_MODULE_PROPERTIES
158 };
159 
160 /* {{{ PHP_MINFO_FUNCTION
161  */
PHP_MINFO_FUNCTION(apache)162 PHP_MINFO_FUNCTION(apache)
163 {
164 	char *apv = (char *) ap_get_server_version();
165 	module *modp = NULL;
166 	char output_buf[128];
167 #if !defined(WIN32) && !defined(WINNT)
168 	char name[64];
169 	char modulenames[1024];
170 	char *p;
171 #endif
172 	server_rec *serv;
173 	extern char server_root[MAX_STRING_LEN];
174 	extern uid_t user_id;
175 	extern char *user_name;
176 	extern gid_t group_id;
177 	extern int max_requests_per_child;
178 
179 	serv = ((request_rec *) SG(server_context))->server;
180 
181 
182 	php_info_print_table_start();
183 
184 #ifdef PHP_WIN32
185 	php_info_print_table_row(1, "Apache for Windows 95/NT");
186 	php_info_print_table_end();
187 	php_info_print_table_start();
188 #elif defined(NETWARE)
189 	php_info_print_table_row(1, "Apache for NetWare");
190 	php_info_print_table_end();
191 	php_info_print_table_start();
192 #else
193 	php_info_print_table_row(2, "APACHE_INCLUDE", PHP_APACHE_INCLUDE);
194 	php_info_print_table_row(2, "APACHE_TARGET", PHP_APACHE_TARGET);
195 #endif
196 
197 	if (apv && *apv) {
198 		php_info_print_table_row(2, "Apache Version", apv);
199 	}
200 
201 #ifdef APACHE_RELEASE
202 	snprintf(output_buf, sizeof(output_buf), "%d", APACHE_RELEASE);
203 	php_info_print_table_row(2, "Apache Release", output_buf);
204 #endif
205 	snprintf(output_buf, sizeof(output_buf), "%d", MODULE_MAGIC_NUMBER);
206 	php_info_print_table_row(2, "Apache API Version", output_buf);
207 	snprintf(output_buf, sizeof(output_buf), "%s:%u", serv->server_hostname, serv->port);
208 	php_info_print_table_row(2, "Hostname:Port", output_buf);
209 #if !defined(WIN32) && !defined(WINNT)
210 	snprintf(output_buf, sizeof(output_buf), "%s(%d)/%d", user_name, (int)user_id, (int)group_id);
211 	php_info_print_table_row(2, "User/Group", output_buf);
212 	snprintf(output_buf, sizeof(output_buf), "Per Child: %d - Keep Alive: %s - Max Per Connection: %d", max_requests_per_child, serv->keep_alive ? "on":"off", serv->keep_alive_max);
213 	php_info_print_table_row(2, "Max Requests", output_buf);
214 #endif
215 	snprintf(output_buf, sizeof(output_buf), "Connection: %d - Keep-Alive: %d", serv->timeout, serv->keep_alive_timeout);
216 	php_info_print_table_row(2, "Timeouts", output_buf);
217 #if !defined(WIN32) && !defined(WINNT)
218 /*
219 	This block seems to be working on NetWare; But it seems to be showing
220 	all modules instead of just the loaded ones
221 */
222 	php_info_print_table_row(2, "Server Root", server_root);
223 
224 	strcpy(modulenames, "");
225 	for(modp = top_module; modp; modp = modp->next) {
226 		strlcpy(name, modp->name, sizeof(name));
227 		if ((p = strrchr(name, '.'))) {
228 			*p='\0'; /* Cut off ugly .c extensions on module names */
229 		}
230 		strlcat(modulenames, name, sizeof(modulenames));
231 		if (modp->next) {
232 			strlcat(modulenames, ", ", sizeof(modulenames));
233 		}
234 	}
235 	php_info_print_table_row(2, "Loaded Modules", modulenames);
236 #endif
237 
238 	php_info_print_table_end();
239 
240 	DISPLAY_INI_ENTRIES();
241 
242 	{
243 		register int i;
244 		array_header *arr;
245 		table_entry *elts;
246 		request_rec *r;
247 
248 		r = ((request_rec *) SG(server_context));
249 		arr = table_elts(r->subprocess_env);
250 		elts = (table_entry *)arr->elts;
251 
252 		SECTION("Apache Environment");
253 		php_info_print_table_start();
254 		php_info_print_table_header(2, "Variable", "Value");
255 		for (i=0; i < arr->nelts; i++) {
256 			php_info_print_table_row(2, elts[i].key, elts[i].val);
257 		}
258 		php_info_print_table_end();
259 	}
260 
261 	{
262 		array_header *env_arr;
263 		table_entry *env;
264 		int i;
265 		request_rec *r;
266 
267 		r = ((request_rec *) SG(server_context));
268 		SECTION("HTTP Headers Information");
269 		php_info_print_table_start();
270 		php_info_print_table_colspan_header(2, "HTTP Request Headers");
271 		php_info_print_table_row(2, "HTTP Request", r->the_request);
272 		env_arr = table_elts(r->headers_in);
273 		env = (table_entry *)env_arr->elts;
274 		for (i = 0; i < env_arr->nelts; ++i) {
275 			if (env[i].key) {
276 				php_info_print_table_row(2, env[i].key, env[i].val);
277 			}
278 		}
279 		php_info_print_table_colspan_header(2, "HTTP Response Headers");
280 		env_arr = table_elts(r->headers_out);
281 		env = (table_entry *)env_arr->elts;
282 		for(i = 0; i < env_arr->nelts; ++i) {
283 			if (env[i].key) {
284 				php_info_print_table_row(2, env[i].key, env[i].val);
285 			}
286 		}
287 		php_info_print_table_end();
288 	}
289 }
290 /* }}} */
291 
292 /* {{{ proto bool apache_child_terminate(void)
293    Terminate apache process after this request */
PHP_FUNCTION(apache_child_terminate)294 PHP_FUNCTION(apache_child_terminate)
295 {
296 #ifndef MULTITHREAD
297 	if (AP(terminate_child)) {
298 		ap_child_terminate( ((request_rec *)SG(server_context)) );
299 		RETURN_TRUE;
300 	} else { /* tell them to get lost! */
301 		php_error_docref(NULL TSRMLS_CC, E_WARNING, "This function is disabled");
302 		RETURN_FALSE;
303 	}
304 #else
305 		php_error_docref(NULL TSRMLS_CC, E_WARNING, "This function is not supported in this build");
306 		RETURN_FALSE;
307 #endif
308 }
309 /* }}} */
310 
311 /* {{{ proto string apache_note(string note_name [, string note_value])
312    Get and set Apache request notes */
PHP_FUNCTION(apache_note)313 PHP_FUNCTION(apache_note)
314 {
315 	char *note_name, *note_val = NULL;
316 	int note_name_len, note_val_len;
317 	char *old_val;
318 
319 	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|s", &note_name, &note_name_len, &note_val, &note_val_len) == FAILURE) {
320 		return;
321 	}
322 
323 	old_val = (char *) table_get(((request_rec *)SG(server_context))->notes, note_name);
324 
325 	if (note_val) {
326 		table_set(((request_rec *)SG(server_context))->notes, note_name, note_val);
327 	}
328 
329 	if (old_val) {
330 		RETURN_STRING(old_val, 1);
331 	}
332 
333 	RETURN_FALSE;
334 }
335 /* }}} */
336 
337 /* {{{ proto bool virtual(string filename)
338    Perform an Apache sub-request */
339 /* This function is equivalent to <!--#include virtual...-->
340  * in mod_include. It does an Apache sub-request. It is useful
341  * for including CGI scripts or .shtml files, or anything else
342  * that you'd parse through Apache (for .phtml files, you'd probably
343  * want to use <?Include>. This only works when PHP is compiled
344  * as an Apache module, since it uses the Apache API for doing
345  * sub requests.
346  */
PHP_FUNCTION(virtual)347 PHP_FUNCTION(virtual)
348 {
349 	char *filename;
350 	int filename_len;
351 	request_rec *rr = NULL;
352 
353 	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "p", &filename, &filename_len) == FAILURE) {
354 		return;
355 	}
356 
357 	if (!(rr = sub_req_lookup_uri (filename, ((request_rec *) SG(server_context))))) {
358 		php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to include '%s' - URI lookup failed", filename);
359 		if (rr)
360 			destroy_sub_req (rr);
361 		RETURN_FALSE;
362 	}
363 
364 	if (rr->status != 200) {
365 		php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to include '%s' - error finding URI", filename);
366 		if (rr)
367 			destroy_sub_req (rr);
368 		RETURN_FALSE;
369 	}
370 
371 	php_output_end_all(TSRMLS_C);
372 	php_header(TSRMLS_C);
373 
374 	if (run_sub_req(rr)) {
375 		php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to include '%s' - request execution failed", filename);
376 		if (rr)
377 			destroy_sub_req (rr);
378 		RETURN_FALSE;
379 	}
380 
381 	if (rr)
382 		destroy_sub_req (rr);
383 
384 	RETURN_TRUE;
385 }
386 /* }}} */
387 
388 /* {{{ proto array getallheaders(void)
389    Alias for apache_request_headers() */
390 /* }}} */
391 
392 /* {{{ proto array apache_request_headers(void)
393    Fetch all HTTP request headers */
PHP_FUNCTION(apache_request_headers)394 PHP_FUNCTION(apache_request_headers)
395 {
396 	array_header *env_arr;
397 	table_entry *tenv;
398 	int i;
399 
400 	array_init(return_value);
401 	env_arr = table_elts(((request_rec *) SG(server_context))->headers_in);
402 	tenv = (table_entry *)env_arr->elts;
403 	for (i = 0; i < env_arr->nelts; ++i) {
404 		if (!tenv[i].key) {
405 			continue;
406 		}
407 		if (add_assoc_string(return_value, tenv[i].key, (tenv[i].val==NULL) ? "" : tenv[i].val, 1)==FAILURE) {
408 			RETURN_FALSE;
409 		}
410     }
411 }
412 /* }}} */
413 
414 /* {{{ proto array apache_response_headers(void)
415    Fetch all HTTP response headers */
PHP_FUNCTION(apache_response_headers)416 PHP_FUNCTION(apache_response_headers)
417 {
418 	array_header *env_arr;
419 	table_entry *tenv;
420 	int i;
421 
422 	array_init(return_value);
423 	env_arr = table_elts(((request_rec *) SG(server_context))->headers_out);
424 	tenv = (table_entry *)env_arr->elts;
425 	for (i = 0; i < env_arr->nelts; ++i) {
426 		if (!tenv[i].key) continue;
427 		if (add_assoc_string(return_value, tenv[i].key, (tenv[i].val==NULL) ? "" : tenv[i].val, 1)==FAILURE) {
428 			RETURN_FALSE;
429 		}
430 	}
431 }
432 /* }}} */
433 
434 /* {{{ proto bool apache_setenv(string variable, string value [, bool walk_to_top])
435    Set an Apache subprocess_env variable */
PHP_FUNCTION(apache_setenv)436 PHP_FUNCTION(apache_setenv)
437 {
438 	int var_len, val_len;
439 	zend_bool top=0;
440 	char *var = NULL, *val = NULL;
441 	request_rec *r = (request_rec *) SG(server_context);
442 
443 	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss|b", &var, &var_len, &val, &val_len, &top) == FAILURE) {
444 		return;
445 	}
446 
447 	while(top) {
448 		if(r->prev) r = r->prev;
449 		else break;
450 	}
451 
452 	ap_table_setn(r->subprocess_env, ap_pstrndup(r->pool, var, var_len), ap_pstrndup(r->pool, val, val_len));
453 	RETURN_TRUE;
454 }
455 /* }}} */
456 
457 /* {{{ proto object apache_lookup_uri(string URI)
458    Perform a partial request of the given URI to obtain information about it */
PHP_FUNCTION(apache_lookup_uri)459 PHP_FUNCTION(apache_lookup_uri)
460 {
461 	char *filename;
462 	int filename_len;
463 	request_rec *rr=NULL;
464 
465 	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &filename, &filename_len) == FAILURE) {
466 		return;
467 	}
468 
469 	if (!(rr = sub_req_lookup_uri(filename, ((request_rec *) SG(server_context))))) {
470 		php_error_docref(NULL TSRMLS_CC, E_WARNING, "URI lookup failed '%s'", filename);
471 		RETURN_FALSE;
472 	}
473 
474 	object_init(return_value);
475 	add_property_long(return_value,"status", rr->status);
476 
477 	if (rr->the_request) {
478 		add_property_string(return_value,"the_request", rr->the_request, 1);
479 	}
480 	if (rr->status_line) {
481 		add_property_string(return_value,"status_line", (char *)rr->status_line, 1);
482 	}
483 	if (rr->method) {
484 		add_property_string(return_value,"method", (char *)rr->method, 1);
485 	}
486 	if (rr->content_type) {
487 		add_property_string(return_value,"content_type", (char *)rr->content_type, 1);
488 	}
489 	if (rr->handler) {
490 		add_property_string(return_value,"handler", (char *)rr->handler, 1);
491 	}
492 	if (rr->uri) {
493 		add_property_string(return_value,"uri", rr->uri, 1);
494 	}
495 	if (rr->filename) {
496 		add_property_string(return_value,"filename", rr->filename, 1);
497 	}
498 	if (rr->path_info) {
499 		add_property_string(return_value,"path_info", rr->path_info, 1);
500 	}
501 	if (rr->args) {
502 		add_property_string(return_value,"args", rr->args, 1);
503 	}
504 	if (rr->boundary) {
505 		add_property_string(return_value,"boundary", rr->boundary, 1);
506 	}
507 
508 	add_property_long(return_value,"no_cache", rr->no_cache);
509 	add_property_long(return_value,"no_local_copy", rr->no_local_copy);
510 	add_property_long(return_value,"allowed", rr->allowed);
511 	add_property_long(return_value,"sent_bodyct", rr->sent_bodyct);
512 	add_property_long(return_value,"bytes_sent", rr->bytes_sent);
513 	add_property_long(return_value,"byterange", rr->byterange);
514 	add_property_long(return_value,"clength", rr->clength);
515 
516 #if MODULE_MAGIC_NUMBER >= 19980324
517 	if (rr->unparsed_uri) {
518 		add_property_string(return_value,"unparsed_uri", rr->unparsed_uri, 1);
519 	}
520 	if(rr->mtime) {
521 		add_property_long(return_value,"mtime", rr->mtime);
522 	}
523 #endif
524 	if(rr->request_time) {
525 		add_property_long(return_value,"request_time", rr->request_time);
526 	}
527 
528 	destroy_sub_req(rr);
529 }
530 /* }}} */
531 
532 
533 #if 0
534 /*
535 This function is most likely a bad idea.  Just playing with it for now.
536 */
537 PHP_FUNCTION(apache_exec_uri)
538 {
539 	char *filename;
540 	int filename_len;
541 	request_rec *rr=NULL;
542 
543 	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &filename, &filename_len) == FAILURE) {
544 		return;
545 	}
546 
547 	if(!(rr = ap_sub_req_lookup_uri(filename, ((request_rec *) SG(server_context))))) {
548 		php_error_docref(NULL TSRMLS_CC, E_WARNING, "URI lookup failed", filename);
549 		RETURN_FALSE;
550 	}
551 
552 	RETVAL_LONG(ap_run_sub_req(rr));
553 	ap_destroy_sub_req(rr);
554 }
555 #endif
556 
557 /* {{{ proto string apache_get_version(void)
558    Fetch Apache version */
PHP_FUNCTION(apache_get_version)559 PHP_FUNCTION(apache_get_version)
560 {
561 	char *apv = (char *) ap_get_server_version();
562 
563 	if (apv && *apv) {
564 		RETURN_STRING(apv, 1);
565 	}
566 
567 	RETURN_FALSE;
568 }
569 /* }}} */
570 
571 /* {{{ proto array apache_get_modules(void)
572    Get a list of loaded Apache modules */
PHP_FUNCTION(apache_get_modules)573 PHP_FUNCTION(apache_get_modules)
574 {
575 	int n;
576 	char *p;
577 
578 	array_init(return_value);
579 
580 	for (n = 0; ap_loaded_modules[n]; ++n) {
581 		char *s = (char *) ap_loaded_modules[n]->name;
582 		if ((p = strchr(s, '.'))) {
583 			add_next_index_stringl(return_value, s, (p - s), 1);
584 		} else {
585 			add_next_index_string(return_value, s, 1);
586 		}
587 	}
588 }
589 /* }}} */
590 
591 /* {{{ proto bool apache_reset_timeout(void)
592    Reset the Apache write timer */
PHP_FUNCTION(apache_reset_timeout)593 PHP_FUNCTION(apache_reset_timeout)
594 {
595 	ap_reset_timeout((request_rec *)SG(server_context));
596 	RETURN_TRUE;
597 }
598 /* }}} */
599 
600 /*
601  * Local variables:
602  * tab-width: 4
603  * c-basic-offset: 4
604  * End:
605  * vim600: sw=4 ts=4 fdm=marker
606  * vim<600: sw=4 ts=4
607  */
608