xref: /PHP-5.6/ext/zlib/zlib.c (revision 1fd18821)
1 /*
2    +----------------------------------------------------------------------+
3    | PHP Version 5                                                        |
4    +----------------------------------------------------------------------+
5    | Copyright (c) 1997-2016 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    |          Stefan Röhrich <sr@linux.de>                                |
17    |          Zeev Suraski <zeev@zend.com>                                |
18    |          Jade Nicoletti <nicoletti@nns.ch>                           |
19    |          Michael Wallner <mike@php.net>                              |
20    +----------------------------------------------------------------------+
21  */
22 
23 /* $Id$ */
24 
25 #ifdef HAVE_CONFIG_H
26 #include "config.h"
27 #endif
28 
29 #include "php.h"
30 #include "SAPI.h"
31 #include "php_ini.h"
32 #include "ext/standard/info.h"
33 #include "ext/standard/file.h"
34 #include "ext/standard/php_string.h"
35 #include "php_zlib.h"
36 
37 /*
38  * zlib include files can define the following preprocessor defines which rename
39  * the corresponding PHP functions to gzopen64, gzseek64 and gztell64 and thereby
40  * breaking some software, most notably PEAR's Archive_Tar, which halts execution
41  * without error message on gzip compressed archivesa.
42  *
43  * This only seems to happen on 32bit systems with large file support.
44  */
45 #undef gzopen
46 #undef gzseek
47 #undef gztell
48 
49 ZEND_DECLARE_MODULE_GLOBALS(zlib);
50 
51 /* {{{ Memory management wrappers */
52 
php_zlib_alloc(voidpf opaque,uInt items,uInt size)53 static voidpf php_zlib_alloc(voidpf opaque, uInt items, uInt size)
54 {
55 	return (voidpf)safe_emalloc(items, size, 0);
56 }
57 
php_zlib_free(voidpf opaque,voidpf address)58 static void php_zlib_free(voidpf opaque, voidpf address)
59 {
60 	efree((void*)address);
61 }
62 /* }}} */
63 
64 /* {{{ php_zlib_output_conflict_check() */
php_zlib_output_conflict_check(const char * handler_name,size_t handler_name_len TSRMLS_DC)65 static int php_zlib_output_conflict_check(const char *handler_name, size_t handler_name_len TSRMLS_DC)
66 {
67 	if (php_output_get_level(TSRMLS_C) > 0) {
68 		if (php_output_handler_conflict(handler_name, handler_name_len, ZEND_STRL(PHP_ZLIB_OUTPUT_HANDLER_NAME) TSRMLS_CC)
69 		||	php_output_handler_conflict(handler_name, handler_name_len, ZEND_STRL("ob_gzhandler") TSRMLS_CC)
70 		||  php_output_handler_conflict(handler_name, handler_name_len, ZEND_STRL("mb_output_handler") TSRMLS_CC)
71 		||	php_output_handler_conflict(handler_name, handler_name_len, ZEND_STRL("URL-Rewriter") TSRMLS_CC)) {
72 			return FAILURE;
73 		}
74 	}
75 	return SUCCESS;
76 }
77 /* }}} */
78 
79 /* {{{ php_zlib_output_encoding() */
php_zlib_output_encoding(TSRMLS_D)80 static int php_zlib_output_encoding(TSRMLS_D)
81 {
82 	zval **enc;
83 
84 	if (!ZLIBG(compression_coding)) {
85 		if ((PG(http_globals)[TRACK_VARS_SERVER]  || zend_is_auto_global(ZEND_STRL("_SERVER") TSRMLS_CC)) &&
86 				SUCCESS == zend_hash_find(Z_ARRVAL_P(PG(http_globals)[TRACK_VARS_SERVER]), "HTTP_ACCEPT_ENCODING", sizeof("HTTP_ACCEPT_ENCODING"), (void *) &enc)) {
87 			convert_to_string(*enc);
88 			if (strstr(Z_STRVAL_PP(enc), "gzip")) {
89 				ZLIBG(compression_coding) = PHP_ZLIB_ENCODING_GZIP;
90 			} else if (strstr(Z_STRVAL_PP(enc), "deflate")) {
91 				ZLIBG(compression_coding) = PHP_ZLIB_ENCODING_DEFLATE;
92 			}
93 		}
94 	}
95 	return ZLIBG(compression_coding);
96 }
97 /* }}} */
98 
99 /* {{{ php_zlib_output_handler_ex() */
php_zlib_output_handler_ex(php_zlib_context * ctx,php_output_context * output_context)100 static int php_zlib_output_handler_ex(php_zlib_context *ctx, php_output_context *output_context)
101 {
102 	int flags = Z_SYNC_FLUSH;
103 	PHP_OUTPUT_TSRMLS(output_context);
104 
105 	if (output_context->op & PHP_OUTPUT_HANDLER_START) {
106 		/* start up */
107 		if (Z_OK != deflateInit2(&ctx->Z, ZLIBG(output_compression_level), Z_DEFLATED, ZLIBG(compression_coding), MAX_MEM_LEVEL, Z_DEFAULT_STRATEGY)) {
108 			return FAILURE;
109 		}
110 	}
111 
112 	if (output_context->op & PHP_OUTPUT_HANDLER_CLEAN) {
113 		/* free buffers */
114 		deflateEnd(&ctx->Z);
115 
116 		if (output_context->op & PHP_OUTPUT_HANDLER_FINAL) {
117 			/* discard */
118 			return SUCCESS;
119 		} else {
120 			/* restart */
121 			if (Z_OK != deflateInit2(&ctx->Z, ZLIBG(output_compression_level), Z_DEFLATED, ZLIBG(compression_coding), MAX_MEM_LEVEL, Z_DEFAULT_STRATEGY)) {
122 				return FAILURE;
123 			}
124 			ctx->buffer.used = 0;
125 		}
126 	} else {
127 		if (output_context->in.used) {
128 			/* append input */
129 			if (ctx->buffer.free < output_context->in.used) {
130 				if (!(ctx->buffer.aptr = erealloc_recoverable(ctx->buffer.data, ctx->buffer.used + ctx->buffer.free + output_context->in.used))) {
131 					deflateEnd(&ctx->Z);
132 					return FAILURE;
133 				}
134 				ctx->buffer.data = ctx->buffer.aptr;
135 				ctx->buffer.free += output_context->in.used;
136 			}
137 			memcpy(ctx->buffer.data + ctx->buffer.used, output_context->in.data, output_context->in.used);
138 			ctx->buffer.free -= output_context->in.used;
139 			ctx->buffer.used += output_context->in.used;
140 		}
141 		output_context->out.size = PHP_ZLIB_BUFFER_SIZE_GUESS(output_context->in.used);
142 		output_context->out.data = emalloc(output_context->out.size);
143 		output_context->out.free = 1;
144 		output_context->out.used = 0;
145 
146 		ctx->Z.avail_in = ctx->buffer.used;
147 		ctx->Z.next_in = (Bytef *) ctx->buffer.data;
148 		ctx->Z.avail_out = output_context->out.size;
149 		ctx->Z.next_out = (Bytef *) output_context->out.data;
150 
151 		if (output_context->op & PHP_OUTPUT_HANDLER_FINAL) {
152 			flags = Z_FINISH;
153 		} else if (output_context->op & PHP_OUTPUT_HANDLER_FLUSH) {
154 			flags = Z_FULL_FLUSH;
155 		}
156 
157 		switch (deflate(&ctx->Z, flags)) {
158 			case Z_OK:
159 				if (flags == Z_FINISH) {
160 					deflateEnd(&ctx->Z);
161 					return FAILURE;
162 				}
163 			case Z_STREAM_END:
164 				if (ctx->Z.avail_in) {
165 					memmove(ctx->buffer.data, ctx->buffer.data + ctx->buffer.used - ctx->Z.avail_in, ctx->Z.avail_in);
166 				}
167 				ctx->buffer.free += ctx->buffer.used - ctx->Z.avail_in;
168 				ctx->buffer.used = ctx->Z.avail_in;
169 				output_context->out.used = output_context->out.size - ctx->Z.avail_out;
170 				break;
171 			default:
172 				deflateEnd(&ctx->Z);
173 				return FAILURE;
174 		}
175 
176 		if (output_context->op & PHP_OUTPUT_HANDLER_FINAL) {
177 			deflateEnd(&ctx->Z);
178 		}
179 	}
180 
181 	return SUCCESS;
182 }
183 /* }}} */
184 
185 /* {{{ php_zlib_output_handler() */
php_zlib_output_handler(void ** handler_context,php_output_context * output_context)186 static int php_zlib_output_handler(void **handler_context, php_output_context *output_context)
187 {
188 	php_zlib_context *ctx = *(php_zlib_context **) handler_context;
189 	PHP_OUTPUT_TSRMLS(output_context);
190 
191 	if (!php_zlib_output_encoding(TSRMLS_C)) {
192 		/* "Vary: Accept-Encoding" header sent along uncompressed content breaks caching in MSIE,
193 			so let's just send it with successfully compressed content or unless the complete
194 			buffer gets discarded, see http://bugs.php.net/40325;
195 
196 			Test as follows:
197 			+Vary: $ HTTP_ACCEPT_ENCODING=gzip ./sapi/cgi/php <<<'<?php ob_start("ob_gzhandler"); echo "foo\n";'
198 			+Vary: $ HTTP_ACCEPT_ENCODING= ./sapi/cgi/php <<<'<?php ob_start("ob_gzhandler"); echo "foo\n";'
199 			-Vary: $ HTTP_ACCEPT_ENCODING=gzip ./sapi/cgi/php <<<'<?php ob_start("ob_gzhandler"); echo "foo\n"; ob_end_clean();'
200 			-Vary: $ HTTP_ACCEPT_ENCODING= ./sapi/cgi/php <<<'<?php ob_start("ob_gzhandler"); echo "foo\n"; ob_end_clean();'
201 		*/
202 		if ((output_context->op & PHP_OUTPUT_HANDLER_START)
203 		&&	(output_context->op != (PHP_OUTPUT_HANDLER_START|PHP_OUTPUT_HANDLER_CLEAN|PHP_OUTPUT_HANDLER_FINAL))
204 		) {
205 			sapi_add_header_ex(ZEND_STRL("Vary: Accept-Encoding"), 1, 0 TSRMLS_CC);
206 		}
207 		return FAILURE;
208 	}
209 
210 	if (SUCCESS != php_zlib_output_handler_ex(ctx, output_context)) {
211 		return FAILURE;
212 	}
213 
214 	if (!(output_context->op & PHP_OUTPUT_HANDLER_CLEAN)) {
215 		int flags;
216 
217 		if (SUCCESS == php_output_handler_hook(PHP_OUTPUT_HANDLER_HOOK_GET_FLAGS, &flags TSRMLS_CC)) {
218 			/* only run this once */
219 			if (!(flags & PHP_OUTPUT_HANDLER_STARTED)) {
220 				if (SG(headers_sent) || !ZLIBG(output_compression)) {
221 					deflateEnd(&ctx->Z);
222 					return FAILURE;
223 				}
224 				switch (ZLIBG(compression_coding)) {
225 					case PHP_ZLIB_ENCODING_GZIP:
226 						sapi_add_header_ex(ZEND_STRL("Content-Encoding: gzip"), 1, 1 TSRMLS_CC);
227 						break;
228 					case PHP_ZLIB_ENCODING_DEFLATE:
229 						sapi_add_header_ex(ZEND_STRL("Content-Encoding: deflate"), 1, 1 TSRMLS_CC);
230 						break;
231 					default:
232 						deflateEnd(&ctx->Z);
233 						return FAILURE;
234 				}
235 				sapi_add_header_ex(ZEND_STRL("Vary: Accept-Encoding"), 1, 0 TSRMLS_CC);
236 				php_output_handler_hook(PHP_OUTPUT_HANDLER_HOOK_IMMUTABLE, NULL TSRMLS_CC);
237 			}
238 		}
239 	}
240 
241 	return SUCCESS;
242 }
243 /* }}} */
244 
245 /* {{{ php_zlib_output_handler_context_init() */
php_zlib_output_handler_context_init(TSRMLS_D)246 static php_zlib_context *php_zlib_output_handler_context_init(TSRMLS_D)
247 {
248 	php_zlib_context *ctx = (php_zlib_context *) ecalloc(1, sizeof(php_zlib_context));
249 	ctx->Z.zalloc = php_zlib_alloc;
250 	ctx->Z.zfree = php_zlib_free;
251 	return ctx;
252 }
253 /* }}} */
254 
255 /* {{{ php_zlib_output_handler_context_dtor() */
php_zlib_output_handler_context_dtor(void * opaq TSRMLS_DC)256 static void php_zlib_output_handler_context_dtor(void *opaq TSRMLS_DC)
257 {
258 	php_zlib_context *ctx = (php_zlib_context *) opaq;
259 
260 	if (ctx) {
261 		if (ctx->buffer.data) {
262 			efree(ctx->buffer.data);
263 		}
264 		efree(ctx);
265 	}
266 }
267 /* }}} */
268 
269 /* {{{ php_zlib_output_handler_init() */
php_zlib_output_handler_init(const char * handler_name,size_t handler_name_len,size_t chunk_size,int flags TSRMLS_DC)270 static php_output_handler *php_zlib_output_handler_init(const char *handler_name, size_t handler_name_len, size_t chunk_size, int flags TSRMLS_DC)
271 {
272 	php_output_handler *h = NULL;
273 
274 	if (!ZLIBG(output_compression)) {
275 		ZLIBG(output_compression) = chunk_size ? chunk_size : PHP_OUTPUT_HANDLER_DEFAULT_SIZE;
276 	}
277 
278     ZLIBG(handler_registered) = 1;
279 
280 	if ((h = php_output_handler_create_internal(handler_name, handler_name_len, php_zlib_output_handler, chunk_size, flags TSRMLS_CC))) {
281 		php_output_handler_set_context(h, php_zlib_output_handler_context_init(TSRMLS_C), php_zlib_output_handler_context_dtor TSRMLS_CC);
282 	}
283 
284 	return h;
285 }
286 /* }}} */
287 
288 /* {{{ php_zlib_output_compression_start() */
php_zlib_output_compression_start(TSRMLS_D)289 static void php_zlib_output_compression_start(TSRMLS_D)
290 {
291 	zval *zoh;
292 	php_output_handler *h;
293 
294 	switch (ZLIBG(output_compression)) {
295 		case 0:
296 			break;
297 		case 1:
298 			ZLIBG(output_compression) = PHP_OUTPUT_HANDLER_DEFAULT_SIZE;
299 			/* break omitted intentionally */
300 		default:
301 			if (	php_zlib_output_encoding(TSRMLS_C) &&
302 					(h = php_zlib_output_handler_init(ZEND_STRL(PHP_ZLIB_OUTPUT_HANDLER_NAME), ZLIBG(output_compression), PHP_OUTPUT_HANDLER_STDFLAGS TSRMLS_CC)) &&
303 					(SUCCESS == php_output_handler_start(h TSRMLS_CC))) {
304 				if (ZLIBG(output_handler) && *ZLIBG(output_handler)) {
305 					MAKE_STD_ZVAL(zoh);
306 					ZVAL_STRING(zoh, ZLIBG(output_handler), 1);
307 					php_output_start_user(zoh, ZLIBG(output_compression), PHP_OUTPUT_HANDLER_STDFLAGS TSRMLS_CC);
308 					zval_ptr_dtor(&zoh);
309 				}
310 			}
311 			break;
312 	}
313 }
314 /* }}} */
315 
316 /* {{{ php_zlib_encode() */
php_zlib_encode(const char * in_buf,size_t in_len,char ** out_buf,size_t * out_len,int encoding,int level TSRMLS_DC)317 static int php_zlib_encode(const char *in_buf, size_t in_len, char **out_buf, size_t *out_len, int encoding, int level TSRMLS_DC)
318 {
319 	int status;
320 	z_stream Z;
321 
322 	memset(&Z, 0, sizeof(z_stream));
323 	Z.zalloc = php_zlib_alloc;
324 	Z.zfree = php_zlib_free;
325 
326 	if (Z_OK == (status = deflateInit2(&Z, level, Z_DEFLATED, encoding, MAX_MEM_LEVEL, Z_DEFAULT_STRATEGY))) {
327 		*out_len = PHP_ZLIB_BUFFER_SIZE_GUESS(in_len);
328 		*out_buf = emalloc(*out_len);
329 
330 		Z.next_in = (Bytef *) in_buf;
331 		Z.next_out = (Bytef *) *out_buf;
332 		Z.avail_in = in_len;
333 		Z.avail_out = *out_len;
334 
335 		status = deflate(&Z, Z_FINISH);
336 		deflateEnd(&Z);
337 
338 		if (Z_STREAM_END == status) {
339 			/* size buffer down to actual length */
340 			*out_buf = erealloc(*out_buf, Z.total_out + 1);
341 			(*out_buf)[*out_len = Z.total_out] = '\0';
342 			return SUCCESS;
343 		} else {
344 			efree(*out_buf);
345 		}
346 	}
347 
348 	*out_buf = NULL;
349 	*out_len = 0;
350 
351 	php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", zError(status));
352 	return FAILURE;
353 }
354 /* }}} */
355 
356 /* {{{ php_zlib_inflate_rounds() */
php_zlib_inflate_rounds(z_stream * Z,size_t max,char ** buf,size_t * len)357 static inline int php_zlib_inflate_rounds(z_stream *Z, size_t max, char **buf, size_t *len)
358 {
359 	int status, round = 0;
360 	php_zlib_buffer buffer = {NULL, NULL, 0, 0, 0};
361 
362 	*buf = NULL;
363 	*len = 0;
364 
365 	buffer.size = (max && (max < Z->avail_in)) ? max : Z->avail_in;
366 
367 	do {
368 		if ((max && (max <= buffer.used)) || !(buffer.aptr = erealloc_recoverable(buffer.data, buffer.size))) {
369 			status = Z_MEM_ERROR;
370 		} else {
371 			buffer.data = buffer.aptr;
372 			Z->avail_out = buffer.free = buffer.size - buffer.used;
373 			Z->next_out = (Bytef *) buffer.data + buffer.used;
374 #if 0
375 			fprintf(stderr, "\n%3d: %3d PRIOR: size=%7lu,\tfree=%7lu,\tused=%7lu,\tavail_in=%7lu,\tavail_out=%7lu\n", round, status, buffer.size, buffer.free, buffer.used, Z->avail_in, Z->avail_out);
376 #endif
377 			status = inflate(Z, Z_NO_FLUSH);
378 
379 			buffer.used += buffer.free - Z->avail_out;
380 			buffer.free = Z->avail_out;
381 #if 0
382 			fprintf(stderr, "%3d: %3d AFTER: size=%7lu,\tfree=%7lu,\tused=%7lu,\tavail_in=%7lu,\tavail_out=%7lu\n", round, status, buffer.size, buffer.free, buffer.used, Z->avail_in, Z->avail_out);
383 #endif
384 			buffer.size += (buffer.size >> 3) + 1;
385 		}
386 	} while ((Z_BUF_ERROR == status || (Z_OK == status && Z->avail_in)) && ++round < 100);
387 
388 	if (status == Z_STREAM_END) {
389 		buffer.data = erealloc(buffer.data, buffer.used + 1);
390 		buffer.data[buffer.used] = '\0';
391 		*buf = buffer.data;
392 		*len = buffer.used;
393 	} else {
394 		if (buffer.data) {
395 			efree(buffer.data);
396 		}
397 		/* HACK: See zlib/examples/zpipe.c inf() function for explanation. */
398 		/* This works as long as this function is not used for streaming. Required to catch very short invalid data. */
399 		status = (status == Z_OK) ? Z_DATA_ERROR : status;
400 	}
401 	return status;
402 }
403 /* }}} */
404 
405 /* {{{ php_zlib_decode() */
php_zlib_decode(const char * in_buf,size_t in_len,char ** out_buf,size_t * out_len,int encoding,size_t max_len TSRMLS_DC)406 static int php_zlib_decode(const char *in_buf, size_t in_len, char **out_buf, size_t *out_len, int encoding, size_t max_len TSRMLS_DC)
407 {
408 	int status = Z_DATA_ERROR;
409 	z_stream Z;
410 
411 	memset(&Z, 0, sizeof(z_stream));
412 	Z.zalloc = php_zlib_alloc;
413 	Z.zfree = php_zlib_free;
414 
415 	if (in_len) {
416 retry_raw_inflate:
417 		status = inflateInit2(&Z, encoding);
418 		if (Z_OK == status) {
419 			Z.next_in = (Bytef *) in_buf;
420 			Z.avail_in = in_len + 1; /* NOTE: data must be zero terminated */
421 
422 			switch (status = php_zlib_inflate_rounds(&Z, max_len, out_buf, out_len)) {
423 				case Z_STREAM_END:
424 					inflateEnd(&Z);
425 					return SUCCESS;
426 
427 				case Z_DATA_ERROR:
428 					/* raw deflated data? */
429 					if (PHP_ZLIB_ENCODING_ANY == encoding) {
430 						inflateEnd(&Z);
431 						encoding = PHP_ZLIB_ENCODING_RAW;
432 						goto retry_raw_inflate;
433 					}
434 			}
435 			inflateEnd(&Z);
436 		}
437 	}
438 
439 	*out_buf = NULL;
440 	*out_len = 0;
441 
442 	php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", zError(status));
443 	return FAILURE;
444 }
445 /* }}} */
446 
447 /* {{{ php_zlib_cleanup_ob_gzhandler_mess() */
php_zlib_cleanup_ob_gzhandler_mess(TSRMLS_D)448 static void php_zlib_cleanup_ob_gzhandler_mess(TSRMLS_D)
449 {
450 	if (ZLIBG(ob_gzhandler)) {
451 		deflateEnd(&(ZLIBG(ob_gzhandler)->Z));
452 		php_zlib_output_handler_context_dtor(ZLIBG(ob_gzhandler) TSRMLS_CC);
453 		ZLIBG(ob_gzhandler) = NULL;
454 	}
455 }
456 /* }}} */
457 
458 /* {{{ proto string ob_gzhandler(string data, int flags)
459    Legacy hack */
PHP_FUNCTION(ob_gzhandler)460 static PHP_FUNCTION(ob_gzhandler)
461 {
462 	char *in_str;
463 	int in_len;
464 	long flags = 0;
465 	php_output_context ctx = {0};
466 	int encoding, rv;
467 
468 	/*
469 	 * NOTE that the real ob_gzhandler is an alias to "zlib output compression".
470 	 * This is a really bad hack, because
471 	 * - we have to initialize a php_zlib_context on demand
472 	 * - we have to clean it up in RSHUTDOWN
473 	 * - OG(running) is not set or set to any other output handler
474 	 * - we have to mess around with php_output_context */
475 
476 	if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sl", &in_str, &in_len, &flags)) {
477 		RETURN_FALSE;
478 	}
479 
480 	if (!(encoding = php_zlib_output_encoding(TSRMLS_C))) {
481 		RETURN_FALSE;
482 	}
483 
484 	if (flags & PHP_OUTPUT_HANDLER_START) {
485 		switch (encoding) {
486 			case PHP_ZLIB_ENCODING_GZIP:
487 				sapi_add_header_ex(ZEND_STRL("Content-Encoding: gzip"), 1, 1 TSRMLS_CC);
488 				break;
489 			case PHP_ZLIB_ENCODING_DEFLATE:
490 				sapi_add_header_ex(ZEND_STRL("Content-Encoding: deflate"), 1, 1 TSRMLS_CC);
491 				break;
492 		}
493 		sapi_add_header_ex(ZEND_STRL("Vary: Accept-Encoding"), 1, 0 TSRMLS_CC);
494 	}
495 
496 	if (!ZLIBG(ob_gzhandler)) {
497 		ZLIBG(ob_gzhandler) = php_zlib_output_handler_context_init(TSRMLS_C);
498 	}
499 
500 	TSRMLS_SET_CTX(ctx.tsrm_ls);
501 	ctx.op = flags;
502 	ctx.in.data = in_str;
503 	ctx.in.used = in_len;
504 
505 	rv = php_zlib_output_handler_ex(ZLIBG(ob_gzhandler), &ctx);
506 
507 	if (SUCCESS != rv) {
508 		if (ctx.out.data && ctx.out.free) {
509 			efree(ctx.out.data);
510 		}
511 		php_zlib_cleanup_ob_gzhandler_mess(TSRMLS_C);
512 		RETURN_FALSE;
513 	}
514 
515 	if (ctx.out.data) {
516 		RETVAL_STRINGL(ctx.out.data, ctx.out.used, 1);
517 		if (ctx.out.free) {
518 			efree(ctx.out.data);
519 		}
520 	} else {
521 		RETVAL_EMPTY_STRING();
522 	}
523 }
524 /* }}} */
525 
526 /* {{{ proto string zlib_get_coding_type(void)
527    Returns the coding type used for output compression */
PHP_FUNCTION(zlib_get_coding_type)528 static PHP_FUNCTION(zlib_get_coding_type)
529 {
530 	if (zend_parse_parameters_none() == FAILURE) {
531 		return;
532 	}
533 	switch (ZLIBG(compression_coding)) {
534 		case PHP_ZLIB_ENCODING_GZIP:
535 			RETURN_STRINGL("gzip", sizeof("gzip") - 1, 1);
536 		case PHP_ZLIB_ENCODING_DEFLATE:
537 			RETURN_STRINGL("deflate", sizeof("deflate") - 1, 1);
538 		default:
539 			RETURN_FALSE;
540 	}
541 }
542 /* }}} */
543 
544 /* {{{ proto array gzfile(string filename [, int use_include_path])
545    Read and uncompress entire .gz-file into an array */
PHP_FUNCTION(gzfile)546 static PHP_FUNCTION(gzfile)
547 {
548 	char *filename;
549 	int filename_len;
550 	int flags = REPORT_ERRORS;
551 	char buf[8192] = {0};
552 	register int i = 0;
553 	long use_include_path = 0;
554 	php_stream *stream;
555 
556 	if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "p|l", &filename, &filename_len, &use_include_path)) {
557 		return;
558 	}
559 
560 	if (use_include_path) {
561 		flags |= USE_PATH;
562 	}
563 
564 	/* using a stream here is a bit more efficient (resource wise) than php_gzopen_wrapper */
565 	stream = php_stream_gzopen(NULL, filename, "rb", flags, NULL, NULL STREAMS_CC TSRMLS_CC);
566 
567 	if (!stream) {
568 		/* Error reporting is already done by stream code */
569 		RETURN_FALSE;
570 	}
571 
572 	/* Initialize return array */
573 	array_init(return_value);
574 
575 	/* Now loop through the file and do the magic quotes thing if needed */
576 	memset(buf, 0, sizeof(buf));
577 
578 	while (php_stream_gets(stream, buf, sizeof(buf) - 1) != NULL) {
579 		add_index_string(return_value, i++, buf, 1);
580 	}
581 	php_stream_close(stream);
582 }
583 /* }}} */
584 
585 /* {{{ proto resource gzopen(string filename, string mode [, int use_include_path])
586    Open a .gz-file and return a .gz-file pointer */
PHP_FUNCTION(gzopen)587 static PHP_FUNCTION(gzopen)
588 {
589 	char *filename;
590 	char *mode;
591 	int filename_len, mode_len;
592 	int flags = REPORT_ERRORS;
593 	php_stream *stream;
594 	long use_include_path = 0;
595 
596 	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ps|l", &filename, &filename_len, &mode, &mode_len, &use_include_path) == FAILURE) {
597 		return;
598 	}
599 
600 	if (use_include_path) {
601 		flags |= USE_PATH;
602 	}
603 
604 	stream = php_stream_gzopen(NULL, filename, mode, flags, NULL, NULL STREAMS_CC TSRMLS_CC);
605 
606 	if (!stream) {
607 		RETURN_FALSE;
608 	}
609 	php_stream_to_zval(stream, return_value);
610 }
611 /* }}} */
612 
613 /* {{{ proto int readgzfile(string filename [, int use_include_path])
614    Output a .gz-file */
PHP_FUNCTION(readgzfile)615 static PHP_FUNCTION(readgzfile)
616 {
617 	char *filename;
618 	int filename_len;
619 	int flags = REPORT_ERRORS;
620 	php_stream *stream;
621 	int size;
622 	long use_include_path = 0;
623 
624 	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "p|l", &filename, &filename_len, &use_include_path) == FAILURE) {
625 		return;
626 	}
627 
628 	if (use_include_path) {
629 		flags |= USE_PATH;
630 	}
631 
632 	stream = php_stream_gzopen(NULL, filename, "rb", flags, NULL, NULL STREAMS_CC TSRMLS_CC);
633 
634 	if (!stream) {
635 		RETURN_FALSE;
636 	}
637 	size = php_stream_passthru(stream);
638 	php_stream_close(stream);
639 	RETURN_LONG(size);
640 }
641 /* }}} */
642 
643 #define PHP_ZLIB_ENCODE_FUNC(name, default_encoding) \
644 static PHP_FUNCTION(name) \
645 { \
646 	char *in_buf, *out_buf; \
647 	int in_len; \
648 	size_t out_len; \
649 	long level = -1; \
650 	long encoding = default_encoding; \
651 	if (default_encoding) { \
652 		if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|ll", &in_buf, &in_len, &level, &encoding)) { \
653 			return; \
654 		} \
655 	} else { \
656 		if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sl|l", &in_buf, &in_len, &encoding, &level)) { \
657 			return; \
658 		} \
659 	} \
660 	if (level < -1 || level > 9) { \
661 		php_error_docref(NULL TSRMLS_CC, E_WARNING, "compression level (%ld) must be within -1..9", level); \
662 		RETURN_FALSE; \
663 	} \
664 	switch (encoding) { \
665 		case PHP_ZLIB_ENCODING_RAW: \
666 		case PHP_ZLIB_ENCODING_GZIP: \
667 		case PHP_ZLIB_ENCODING_DEFLATE: \
668 			break; \
669 		default: \
670 			php_error_docref(NULL TSRMLS_CC, E_WARNING, "encoding mode must be either ZLIB_ENCODING_RAW, ZLIB_ENCODING_GZIP or ZLIB_ENCODING_DEFLATE"); \
671 			RETURN_FALSE; \
672 	} \
673 	if (SUCCESS != php_zlib_encode(in_buf, in_len, &out_buf, &out_len, encoding, level TSRMLS_CC)) { \
674 		RETURN_FALSE; \
675 	} \
676 	RETVAL_STRINGL_CHECK(out_buf, out_len, 0); \
677 }
678 
679 #define PHP_ZLIB_DECODE_FUNC(name, encoding) \
680 static PHP_FUNCTION(name) \
681 { \
682 	char *in_buf, *out_buf; \
683 	int in_len; \
684 	size_t out_len; \
685 	long max_len = 0; \
686 	if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|l", &in_buf, &in_len, &max_len)) { \
687 		return; \
688 	} \
689 	if (max_len < 0) { \
690 		php_error_docref(NULL TSRMLS_CC, E_WARNING, "length (%ld) must be greater or equal zero", max_len); \
691 		RETURN_FALSE; \
692 	} \
693 	if (SUCCESS != php_zlib_decode(in_buf, in_len, &out_buf, &out_len, encoding, max_len TSRMLS_CC)) { \
694 		RETURN_FALSE; \
695 	} \
696 	RETVAL_STRINGL_CHECK(out_buf, out_len, 0); \
697 }
698 
699 /* {{{ proto binary zlib_encode(binary data, int encoding[, int level = -1])
700    Compress data with the specified encoding */
701 PHP_ZLIB_ENCODE_FUNC(zlib_encode, 0);
702 /* }}} */
703 
704 /* {{{ proto binary zlib_decode(binary data[, int max_decoded_len])
705    Uncompress any raw/gzip/zlib encoded data */
706 PHP_ZLIB_DECODE_FUNC(zlib_decode, PHP_ZLIB_ENCODING_ANY);
707 /* }}} */
708 
709 /* NOTE: The naming of these userland functions was quite unlucky */
710 /* {{{ proto binary gzdeflate(binary data[, int level = -1[, int encoding = ZLIB_ENCODING_RAW])
711    Encode data with the raw deflate encoding */
712 PHP_ZLIB_ENCODE_FUNC(gzdeflate, PHP_ZLIB_ENCODING_RAW);
713 /* }}} */
714 
715 /* {{{ proto binary gzencode(binary data[, int level = -1[, int encoding = ZLIB_ENCODING_GZIP])
716    Encode data with the gzip encoding */
717 PHP_ZLIB_ENCODE_FUNC(gzencode, PHP_ZLIB_ENCODING_GZIP);
718 /* }}} */
719 
720 /* {{{ proto binary gzcompress(binary data[, int level = -1[, int encoding = ZLIB_ENCODING_DEFLATE])
721    Encode data with the zlib encoding */
722 PHP_ZLIB_ENCODE_FUNC(gzcompress, PHP_ZLIB_ENCODING_DEFLATE);
723 /* }}} */
724 
725 /* {{{ proto binary gzinflate(binary data[, int max_decoded_len])
726    Decode raw deflate encoded data */
727 PHP_ZLIB_DECODE_FUNC(gzinflate, PHP_ZLIB_ENCODING_RAW);
728 /* }}} */
729 
730 /* {{{ proto binary gzdecode(binary data[, int max_decoded_len])
731    Decode gzip encoded data */
732 PHP_ZLIB_DECODE_FUNC(gzdecode, PHP_ZLIB_ENCODING_GZIP);
733 /* }}} */
734 
735 /* {{{ proto binary gzuncompress(binary data[, int max_decoded_len])
736    Decode zlib encoded data */
737 PHP_ZLIB_DECODE_FUNC(gzuncompress, PHP_ZLIB_ENCODING_DEFLATE);
738 /* }}} */
739 
740 #ifdef COMPILE_DL_ZLIB
741 ZEND_GET_MODULE(php_zlib)
742 #endif
743 
744 /* {{{ arginfo */
745 ZEND_BEGIN_ARG_INFO_EX(arginfo_ob_gzhandler, 0, 0, 2)
746 	ZEND_ARG_INFO(0, data)
747 	ZEND_ARG_INFO(0, flags)
748 ZEND_END_ARG_INFO()
749 
750 ZEND_BEGIN_ARG_INFO(arginfo_zlib_get_coding_type, 0)
751 ZEND_END_ARG_INFO()
752 
753 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzfile, 0, 0, 1)
754 	ZEND_ARG_INFO(0, filename)
755 	ZEND_ARG_INFO(0, use_include_path)
756 ZEND_END_ARG_INFO()
757 
758 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzopen, 0, 0, 2)
759 	ZEND_ARG_INFO(0, filename)
760 	ZEND_ARG_INFO(0, mode)
761 	ZEND_ARG_INFO(0, use_include_path)
762 ZEND_END_ARG_INFO()
763 
764 ZEND_BEGIN_ARG_INFO_EX(arginfo_readgzfile, 0, 0, 1)
765 	ZEND_ARG_INFO(0, filename)
766 	ZEND_ARG_INFO(0, use_include_path)
767 ZEND_END_ARG_INFO()
768 
769 ZEND_BEGIN_ARG_INFO_EX(arginfo_zlib_encode, 0, 0, 2)
770 	ZEND_ARG_INFO(0, data)
771 	ZEND_ARG_INFO(0, encoding)
772 	ZEND_ARG_INFO(0, level)
773 ZEND_END_ARG_INFO()
774 
775 ZEND_BEGIN_ARG_INFO_EX(arginfo_zlib_decode, 0, 0, 1)
776 	ZEND_ARG_INFO(0, data)
777 	ZEND_ARG_INFO(0, max_decoded_len)
778 ZEND_END_ARG_INFO()
779 
780 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzdeflate, 0, 0, 1)
781 	ZEND_ARG_INFO(0, data)
782 	ZEND_ARG_INFO(0, level)
783 	ZEND_ARG_INFO(0, encoding)
784 ZEND_END_ARG_INFO()
785 
786 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzencode, 0, 0, 1)
787 	ZEND_ARG_INFO(0, data)
788 	ZEND_ARG_INFO(0, level)
789 	ZEND_ARG_INFO(0, encoding)
790 ZEND_END_ARG_INFO()
791 
792 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzcompress, 0, 0, 1)
793 	ZEND_ARG_INFO(0, data)
794 	ZEND_ARG_INFO(0, level)
795 	ZEND_ARG_INFO(0, encoding)
796 ZEND_END_ARG_INFO()
797 
798 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzinflate, 0, 0, 1)
799 	ZEND_ARG_INFO(0, data)
800 	ZEND_ARG_INFO(0, max_decoded_len)
801 ZEND_END_ARG_INFO()
802 
803 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzdecode, 0, 0, 1)
804 	ZEND_ARG_INFO(0, data)
805 	ZEND_ARG_INFO(0, max_decoded_len)
806 ZEND_END_ARG_INFO()
807 
808 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzuncompress, 0, 0, 1)
809 	ZEND_ARG_INFO(0, data)
810 	ZEND_ARG_INFO(0, max_decoded_len)
811 ZEND_END_ARG_INFO()
812 
813 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzputs, 0, 0, 2)
814 	ZEND_ARG_INFO(0, fp)
815 	ZEND_ARG_INFO(0, str)
816 	ZEND_ARG_INFO(0, length)
817 ZEND_END_ARG_INFO()
818 
819 ZEND_BEGIN_ARG_INFO(arginfo_gzpassthru, 0)
820 	ZEND_ARG_INFO(0, fp)
821 ZEND_END_ARG_INFO()
822 
823 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzseek, 0, 0, 2)
824 	ZEND_ARG_INFO(0, fp)
825 	ZEND_ARG_INFO(0, offset)
826 	ZEND_ARG_INFO(0, whence)
827 ZEND_END_ARG_INFO()
828 
829 ZEND_BEGIN_ARG_INFO(arginfo_gzread, 0)
830 	ZEND_ARG_INFO(0, fp)
831 	ZEND_ARG_INFO(0, length)
832 ZEND_END_ARG_INFO()
833 
834 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzgetss, 0, 0, 1)
835 	ZEND_ARG_INFO(0, fp)
836 	ZEND_ARG_INFO(0, length)
837 	ZEND_ARG_INFO(0, allowable_tags)
838 ZEND_END_ARG_INFO()
839 
840 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzgets, 0, 0, 1)
841 	ZEND_ARG_INFO(0, fp)
842 	ZEND_ARG_INFO(0, length)
843 ZEND_END_ARG_INFO()
844 /* }}} */
845 
846 /* {{{ php_zlib_functions[] */
847 static const zend_function_entry php_zlib_functions[] = {
848 	PHP_FE(readgzfile,						arginfo_readgzfile)
849 	PHP_FALIAS(gzrewind,	rewind,			arginfo_gzpassthru)
850 	PHP_FALIAS(gzclose,		fclose,			arginfo_gzpassthru)
851 	PHP_FALIAS(gzeof,		feof,			arginfo_gzpassthru)
852 	PHP_FALIAS(gzgetc,		fgetc,			arginfo_gzpassthru)
853 	PHP_FALIAS(gzgets,		fgets,			arginfo_gzgets)
854 	PHP_FALIAS(gzgetss,		fgetss,			arginfo_gzgetss)
855 	PHP_FALIAS(gzread,		fread,			arginfo_gzread)
856 	PHP_FE(gzopen,							arginfo_gzopen)
857 	PHP_FALIAS(gzpassthru,	fpassthru,		arginfo_gzpassthru)
858 	PHP_FALIAS(gzseek,		fseek,			arginfo_gzseek)
859 	PHP_FALIAS(gztell,		ftell,			arginfo_gzpassthru)
860 	PHP_FALIAS(gzwrite,		fwrite,			arginfo_gzputs)
861 	PHP_FALIAS(gzputs,		fwrite,			arginfo_gzputs)
862 	PHP_FE(gzfile,							arginfo_gzfile)
863 	PHP_FE(gzcompress,						arginfo_gzcompress)
864 	PHP_FE(gzuncompress,					arginfo_gzuncompress)
865 	PHP_FE(gzdeflate,						arginfo_gzdeflate)
866 	PHP_FE(gzinflate,						arginfo_gzinflate)
867 	PHP_FE(gzencode,						arginfo_gzencode)
868 	PHP_FE(gzdecode,						arginfo_gzdecode)
869 	PHP_FE(zlib_encode,						arginfo_zlib_encode)
870 	PHP_FE(zlib_decode,						arginfo_zlib_decode)
871 	PHP_FE(zlib_get_coding_type,			arginfo_zlib_get_coding_type)
872 	PHP_FE(ob_gzhandler,					arginfo_ob_gzhandler)
873 	PHP_FE_END
874 };
875 /* }}} */
876 
877 /* {{{ OnUpdate_zlib_output_compression */
PHP_INI_MH(OnUpdate_zlib_output_compression)878 static PHP_INI_MH(OnUpdate_zlib_output_compression)
879 {
880 	int status, int_value;
881 	char *ini_value;
882 
883 	if (new_value == NULL) {
884 		return FAILURE;
885 	}
886 
887 	if (!strncasecmp(new_value, "off", sizeof("off"))) {
888 		new_value = "0";
889 		new_value_length = sizeof("0");
890 	} else if (!strncasecmp(new_value, "on", sizeof("on"))) {
891 		new_value = "1";
892 		new_value_length = sizeof("1");
893 	}
894 
895 	int_value = zend_atoi(new_value, new_value_length);
896 	ini_value = zend_ini_string("output_handler", sizeof("output_handler"), 0);
897 
898 	if (ini_value && *ini_value && int_value) {
899 		php_error_docref("ref.outcontrol" TSRMLS_CC, E_CORE_ERROR, "Cannot use both zlib.output_compression and output_handler together!!");
900 		return FAILURE;
901 	}
902 	if (stage == PHP_INI_STAGE_RUNTIME) {
903 		status = php_output_get_status(TSRMLS_C);
904 		if (status & PHP_OUTPUT_SENT) {
905 			php_error_docref("ref.outcontrol" TSRMLS_CC, E_WARNING, "Cannot change zlib.output_compression - headers already sent");
906 			return FAILURE;
907 		}
908 	}
909 
910 	status = OnUpdateLong(entry, new_value, new_value_length, mh_arg1, mh_arg2, mh_arg3, stage TSRMLS_CC);
911 
912 	ZLIBG(output_compression) = ZLIBG(output_compression_default);
913 	if (stage == PHP_INI_STAGE_RUNTIME && int_value) {
914 		if (!php_output_handler_started(ZEND_STRL(PHP_ZLIB_OUTPUT_HANDLER_NAME) TSRMLS_CC)) {
915 			php_zlib_output_compression_start(TSRMLS_C);
916 		}
917 	}
918 
919 	return status;
920 }
921 /* }}} */
922 
923 /* {{{ OnUpdate_zlib_output_handler */
PHP_INI_MH(OnUpdate_zlib_output_handler)924 static PHP_INI_MH(OnUpdate_zlib_output_handler)
925 {
926 	if (stage == PHP_INI_STAGE_RUNTIME && (php_output_get_status(TSRMLS_C) & PHP_OUTPUT_SENT)) {
927 		php_error_docref("ref.outcontrol" TSRMLS_CC, E_WARNING, "Cannot change zlib.output_handler - headers already sent");
928 		return FAILURE;
929 	}
930 
931 	return OnUpdateString(entry, new_value, new_value_length, mh_arg1, mh_arg2, mh_arg3, stage TSRMLS_CC);
932 }
933 /* }}} */
934 
935 /* {{{ INI */
936 PHP_INI_BEGIN()
937 	STD_PHP_INI_BOOLEAN("zlib.output_compression",      "0", PHP_INI_ALL, OnUpdate_zlib_output_compression,       output_compression_default,       zend_zlib_globals, zlib_globals)
938 	STD_PHP_INI_ENTRY("zlib.output_compression_level", "-1", PHP_INI_ALL, OnUpdateLong,                           output_compression_level, zend_zlib_globals, zlib_globals)
939 	STD_PHP_INI_ENTRY("zlib.output_handler",             "", PHP_INI_ALL, OnUpdate_zlib_output_handler,           output_handler,           zend_zlib_globals, zlib_globals)
PHP_INI_END()940 PHP_INI_END()
941 
942 /* }}} */
943 
944 /* {{{ PHP_MINIT_FUNCTION */
945 static PHP_MINIT_FUNCTION(zlib)
946 {
947 	php_register_url_stream_wrapper("compress.zlib", &php_stream_gzip_wrapper TSRMLS_CC);
948 	php_stream_filter_register_factory("zlib.*", &php_zlib_filter_factory TSRMLS_CC);
949 
950 	php_output_handler_alias_register(ZEND_STRL("ob_gzhandler"), php_zlib_output_handler_init TSRMLS_CC);
951 	php_output_handler_conflict_register(ZEND_STRL("ob_gzhandler"), php_zlib_output_conflict_check TSRMLS_CC);
952 	php_output_handler_conflict_register(ZEND_STRL(PHP_ZLIB_OUTPUT_HANDLER_NAME), php_zlib_output_conflict_check TSRMLS_CC);
953 
954 	REGISTER_LONG_CONSTANT("FORCE_GZIP", PHP_ZLIB_ENCODING_GZIP, CONST_CS|CONST_PERSISTENT);
955 	REGISTER_LONG_CONSTANT("FORCE_DEFLATE", PHP_ZLIB_ENCODING_DEFLATE, CONST_CS|CONST_PERSISTENT);
956 
957 	REGISTER_LONG_CONSTANT("ZLIB_ENCODING_RAW", PHP_ZLIB_ENCODING_RAW, CONST_CS|CONST_PERSISTENT);
958 	REGISTER_LONG_CONSTANT("ZLIB_ENCODING_GZIP", PHP_ZLIB_ENCODING_GZIP, CONST_CS|CONST_PERSISTENT);
959 	REGISTER_LONG_CONSTANT("ZLIB_ENCODING_DEFLATE", PHP_ZLIB_ENCODING_DEFLATE, CONST_CS|CONST_PERSISTENT);
960 	REGISTER_INI_ENTRIES();
961 	return SUCCESS;
962 }
963 /* }}} */
964 
965 /* {{{ PHP_MSHUTDOWN_FUNCTION */
PHP_MSHUTDOWN_FUNCTION(zlib)966 static PHP_MSHUTDOWN_FUNCTION(zlib)
967 {
968 	php_unregister_url_stream_wrapper("zlib" TSRMLS_CC);
969 	php_stream_filter_unregister_factory("zlib.*" TSRMLS_CC);
970 
971 	UNREGISTER_INI_ENTRIES();
972 
973 	return SUCCESS;
974 }
975 /* }}} */
976 
977 /* {{{ PHP_RINIT_FUNCTION */
PHP_RINIT_FUNCTION(zlib)978 static PHP_RINIT_FUNCTION(zlib)
979 {
980 	ZLIBG(compression_coding) = 0;
981     if (!ZLIBG(handler_registered)) {
982         ZLIBG(output_compression) = ZLIBG(output_compression_default);
983         php_zlib_output_compression_start(TSRMLS_C);
984     }
985 
986 	return SUCCESS;
987 }
988 /* }}} */
989 
990 /* {{{ PHP_RSHUTDOWN_FUNCTION */
PHP_RSHUTDOWN_FUNCTION(zlib)991 static PHP_RSHUTDOWN_FUNCTION(zlib)
992 {
993 	php_zlib_cleanup_ob_gzhandler_mess(TSRMLS_C);
994     ZLIBG(handler_registered) = 0;
995 
996     return SUCCESS;
997 }
998 /* }}} */
999 
1000 /* {{{ PHP_MINFO_FUNCTION */
PHP_MINFO_FUNCTION(zlib)1001 static PHP_MINFO_FUNCTION(zlib)
1002 {
1003 	php_info_print_table_start();
1004 	php_info_print_table_header(2, "ZLib Support", "enabled");
1005 	php_info_print_table_row(2, "Stream Wrapper", "compress.zlib://");
1006 	php_info_print_table_row(2, "Stream Filter", "zlib.inflate, zlib.deflate");
1007 	php_info_print_table_row(2, "Compiled Version", ZLIB_VERSION);
1008 	php_info_print_table_row(2, "Linked Version", (char *) zlibVersion());
1009 	php_info_print_table_end();
1010 
1011 	DISPLAY_INI_ENTRIES();
1012 }
1013 /* }}} */
1014 
1015 /* {{{ ZEND_MODULE_GLOBALS_CTOR */
ZEND_MODULE_GLOBALS_CTOR_D(zlib)1016 static ZEND_MODULE_GLOBALS_CTOR_D(zlib)
1017 {
1018 	zlib_globals->ob_gzhandler = NULL;
1019     zlib_globals->handler_registered = 0;
1020 }
1021 /* }}} */
1022 
1023 /* {{{ php_zlib_module_entry */
1024 zend_module_entry php_zlib_module_entry = {
1025 	STANDARD_MODULE_HEADER,
1026 	"zlib",
1027 	php_zlib_functions,
1028 	PHP_MINIT(zlib),
1029 	PHP_MSHUTDOWN(zlib),
1030 	PHP_RINIT(zlib),
1031 	PHP_RSHUTDOWN(zlib),
1032 	PHP_MINFO(zlib),
1033 	"2.0",
1034 	PHP_MODULE_GLOBALS(zlib),
1035 	ZEND_MODULE_GLOBALS_CTOR_N(zlib),
1036 	NULL,
1037 	NULL,
1038 	STANDARD_MODULE_PROPERTIES_EX
1039 };
1040 /* }}} */
1041 
1042 /*
1043  * Local variables:
1044  * tab-width: 4
1045  * c-basic-offset: 4
1046  * End:
1047  * vim600: sw=4 ts=4 fdm=marker
1048  * vim<600: sw=4 ts=4
1049  */
1050