1 /*
2 +----------------------------------------------------------------------+
3 | PHP Version 7 |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 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@php.net> |
18 | Jade Nicoletti <nicoletti@nns.ch> |
19 | Michael Wallner <mike@php.net> |
20 +----------------------------------------------------------------------+
21 */
22
23 #ifdef HAVE_CONFIG_H
24 #include "config.h"
25 #endif
26
27 #include "php.h"
28 #include "SAPI.h"
29 #include "php_ini.h"
30 #include "ext/standard/info.h"
31 #include "ext/standard/file.h"
32 #include "ext/standard/php_string.h"
33 #include "php_zlib.h"
34
35 /*
36 * zlib include files can define the following preprocessor defines which rename
37 * the corresponding PHP functions to gzopen64, gzseek64 and gztell64 and thereby
38 * breaking some software, most notably PEAR's Archive_Tar, which halts execution
39 * without error message on gzip compressed archivesa.
40 *
41 * This only seems to happen on 32bit systems with large file support.
42 */
43 #undef gzopen
44 #undef gzseek
45 #undef gztell
46
47 int le_deflate;
48 int le_inflate;
49
50 ZEND_DECLARE_MODULE_GLOBALS(zlib);
51
52 /* {{{ Memory management wrappers */
53
php_zlib_alloc(voidpf opaque,uInt items,uInt size)54 static voidpf php_zlib_alloc(voidpf opaque, uInt items, uInt size)
55 {
56 return (voidpf)safe_emalloc(items, size, 0);
57 }
58
php_zlib_free(voidpf opaque,voidpf address)59 static void php_zlib_free(voidpf opaque, voidpf address)
60 {
61 efree((void*)address);
62 }
63 /* }}} */
64
65 /* {{{ Incremental deflate/inflate resource destructors */
66
deflate_rsrc_dtor(zend_resource * res)67 void deflate_rsrc_dtor(zend_resource *res)
68 {
69 z_stream *ctx = zend_fetch_resource(res, NULL, le_deflate);
70 deflateEnd(ctx);
71 efree(ctx);
72 }
73
inflate_rsrc_dtor(zend_resource * res)74 void inflate_rsrc_dtor(zend_resource *res)
75 {
76 z_stream *ctx = zend_fetch_resource(res, NULL, le_inflate);
77 if (((php_zlib_context *) ctx)->inflateDict) {
78 efree(((php_zlib_context *) ctx)->inflateDict);
79 }
80 inflateEnd(ctx);
81 efree(ctx);
82 }
83
84 /* }}} */
85
86 /* {{{ php_zlib_output_conflict_check() */
php_zlib_output_conflict_check(const char * handler_name,size_t handler_name_len)87 static int php_zlib_output_conflict_check(const char *handler_name, size_t handler_name_len)
88 {
89 if (php_output_get_level() > 0) {
90 if (php_output_handler_conflict(handler_name, handler_name_len, ZEND_STRL(PHP_ZLIB_OUTPUT_HANDLER_NAME))
91 || php_output_handler_conflict(handler_name, handler_name_len, ZEND_STRL("ob_gzhandler"))
92 || php_output_handler_conflict(handler_name, handler_name_len, ZEND_STRL("mb_output_handler"))
93 || php_output_handler_conflict(handler_name, handler_name_len, ZEND_STRL("URL-Rewriter"))) {
94 return FAILURE;
95 }
96 }
97 return SUCCESS;
98 }
99 /* }}} */
100
101 /* {{{ php_zlib_output_encoding() */
php_zlib_output_encoding(void)102 static int php_zlib_output_encoding(void)
103 {
104 zval *enc;
105
106 if (!ZLIBG(compression_coding)) {
107 if ((Z_TYPE(PG(http_globals)[TRACK_VARS_SERVER]) == IS_ARRAY || zend_is_auto_global_str(ZEND_STRL("_SERVER"))) &&
108 (enc = zend_hash_str_find(Z_ARRVAL(PG(http_globals)[TRACK_VARS_SERVER]), "HTTP_ACCEPT_ENCODING", sizeof("HTTP_ACCEPT_ENCODING") - 1))) {
109 convert_to_string(enc);
110 if (strstr(Z_STRVAL_P(enc), "gzip")) {
111 ZLIBG(compression_coding) = PHP_ZLIB_ENCODING_GZIP;
112 } else if (strstr(Z_STRVAL_P(enc), "deflate")) {
113 ZLIBG(compression_coding) = PHP_ZLIB_ENCODING_DEFLATE;
114 }
115 }
116 }
117 return ZLIBG(compression_coding);
118 }
119 /* }}} */
120
121 /* {{{ php_zlib_output_handler_ex() */
php_zlib_output_handler_ex(php_zlib_context * ctx,php_output_context * output_context)122 static int php_zlib_output_handler_ex(php_zlib_context *ctx, php_output_context *output_context)
123 {
124 int flags = Z_SYNC_FLUSH;
125
126 if (output_context->op & PHP_OUTPUT_HANDLER_START) {
127 /* start up */
128 if (Z_OK != deflateInit2(&ctx->Z, ZLIBG(output_compression_level), Z_DEFLATED, ZLIBG(compression_coding), MAX_MEM_LEVEL, Z_DEFAULT_STRATEGY)) {
129 return FAILURE;
130 }
131 }
132
133 if (output_context->op & PHP_OUTPUT_HANDLER_CLEAN) {
134 /* free buffers */
135 deflateEnd(&ctx->Z);
136
137 if (output_context->op & PHP_OUTPUT_HANDLER_FINAL) {
138 /* discard */
139 return SUCCESS;
140 } else {
141 /* restart */
142 if (Z_OK != deflateInit2(&ctx->Z, ZLIBG(output_compression_level), Z_DEFLATED, ZLIBG(compression_coding), MAX_MEM_LEVEL, Z_DEFAULT_STRATEGY)) {
143 return FAILURE;
144 }
145 ctx->buffer.used = 0;
146 }
147 } else {
148 if (output_context->in.used) {
149 /* append input */
150 if (ctx->buffer.free < output_context->in.used) {
151 if (!(ctx->buffer.aptr = erealloc_recoverable(ctx->buffer.data, ctx->buffer.used + ctx->buffer.free + output_context->in.used))) {
152 deflateEnd(&ctx->Z);
153 return FAILURE;
154 }
155 ctx->buffer.data = ctx->buffer.aptr;
156 ctx->buffer.free += output_context->in.used;
157 }
158 memcpy(ctx->buffer.data + ctx->buffer.used, output_context->in.data, output_context->in.used);
159 ctx->buffer.free -= output_context->in.used;
160 ctx->buffer.used += output_context->in.used;
161 }
162 output_context->out.size = PHP_ZLIB_BUFFER_SIZE_GUESS(output_context->in.used);
163 output_context->out.data = emalloc(output_context->out.size);
164 output_context->out.free = 1;
165 output_context->out.used = 0;
166
167 ctx->Z.avail_in = ctx->buffer.used;
168 ctx->Z.next_in = (Bytef *) ctx->buffer.data;
169 ctx->Z.avail_out = output_context->out.size;
170 ctx->Z.next_out = (Bytef *) output_context->out.data;
171
172 if (output_context->op & PHP_OUTPUT_HANDLER_FINAL) {
173 flags = Z_FINISH;
174 } else if (output_context->op & PHP_OUTPUT_HANDLER_FLUSH) {
175 flags = Z_FULL_FLUSH;
176 }
177
178 switch (deflate(&ctx->Z, flags)) {
179 case Z_OK:
180 if (flags == Z_FINISH) {
181 deflateEnd(&ctx->Z);
182 return FAILURE;
183 }
184 case Z_STREAM_END:
185 if (ctx->Z.avail_in) {
186 memmove(ctx->buffer.data, ctx->buffer.data + ctx->buffer.used - ctx->Z.avail_in, ctx->Z.avail_in);
187 }
188 ctx->buffer.free += ctx->buffer.used - ctx->Z.avail_in;
189 ctx->buffer.used = ctx->Z.avail_in;
190 output_context->out.used = output_context->out.size - ctx->Z.avail_out;
191 break;
192 default:
193 deflateEnd(&ctx->Z);
194 return FAILURE;
195 }
196
197 if (output_context->op & PHP_OUTPUT_HANDLER_FINAL) {
198 deflateEnd(&ctx->Z);
199 }
200 }
201
202 return SUCCESS;
203 }
204 /* }}} */
205
206 /* {{{ php_zlib_output_handler() */
php_zlib_output_handler(void ** handler_context,php_output_context * output_context)207 static int php_zlib_output_handler(void **handler_context, php_output_context *output_context)
208 {
209 php_zlib_context *ctx = *(php_zlib_context **) handler_context;
210
211 if (!php_zlib_output_encoding()) {
212 /* "Vary: Accept-Encoding" header sent along uncompressed content breaks caching in MSIE,
213 so let's just send it with successfully compressed content or unless the complete
214 buffer gets discarded, see http://bugs.php.net/40325;
215
216 Test as follows:
217 +Vary: $ HTTP_ACCEPT_ENCODING=gzip ./sapi/cgi/php <<<'<?php ob_start("ob_gzhandler"); echo "foo\n";'
218 +Vary: $ HTTP_ACCEPT_ENCODING= ./sapi/cgi/php <<<'<?php ob_start("ob_gzhandler"); echo "foo\n";'
219 -Vary: $ HTTP_ACCEPT_ENCODING=gzip ./sapi/cgi/php <<<'<?php ob_start("ob_gzhandler"); echo "foo\n"; ob_end_clean();'
220 -Vary: $ HTTP_ACCEPT_ENCODING= ./sapi/cgi/php <<<'<?php ob_start("ob_gzhandler"); echo "foo\n"; ob_end_clean();'
221 */
222 if ((output_context->op & PHP_OUTPUT_HANDLER_START)
223 && (output_context->op != (PHP_OUTPUT_HANDLER_START|PHP_OUTPUT_HANDLER_CLEAN|PHP_OUTPUT_HANDLER_FINAL))
224 ) {
225 sapi_add_header_ex(ZEND_STRL("Vary: Accept-Encoding"), 1, 0);
226 }
227 return FAILURE;
228 }
229
230 if (SUCCESS != php_zlib_output_handler_ex(ctx, output_context)) {
231 return FAILURE;
232 }
233
234 if (!(output_context->op & PHP_OUTPUT_HANDLER_CLEAN)) {
235 int flags;
236
237 if (SUCCESS == php_output_handler_hook(PHP_OUTPUT_HANDLER_HOOK_GET_FLAGS, &flags)) {
238 /* only run this once */
239 if (!(flags & PHP_OUTPUT_HANDLER_STARTED)) {
240 if (SG(headers_sent) || !ZLIBG(output_compression)) {
241 deflateEnd(&ctx->Z);
242 return FAILURE;
243 }
244 switch (ZLIBG(compression_coding)) {
245 case PHP_ZLIB_ENCODING_GZIP:
246 sapi_add_header_ex(ZEND_STRL("Content-Encoding: gzip"), 1, 1);
247 break;
248 case PHP_ZLIB_ENCODING_DEFLATE:
249 sapi_add_header_ex(ZEND_STRL("Content-Encoding: deflate"), 1, 1);
250 break;
251 default:
252 deflateEnd(&ctx->Z);
253 return FAILURE;
254 }
255 sapi_add_header_ex(ZEND_STRL("Vary: Accept-Encoding"), 1, 0);
256 php_output_handler_hook(PHP_OUTPUT_HANDLER_HOOK_IMMUTABLE, NULL);
257 }
258 }
259 }
260
261 return SUCCESS;
262 }
263 /* }}} */
264
265 /* {{{ php_zlib_output_handler_context_init() */
php_zlib_output_handler_context_init(void)266 static php_zlib_context *php_zlib_output_handler_context_init(void)
267 {
268 php_zlib_context *ctx = (php_zlib_context *) ecalloc(1, sizeof(php_zlib_context));
269 ctx->Z.zalloc = php_zlib_alloc;
270 ctx->Z.zfree = php_zlib_free;
271 return ctx;
272 }
273 /* }}} */
274
275 /* {{{ php_zlib_output_handler_context_dtor() */
php_zlib_output_handler_context_dtor(void * opaq)276 static void php_zlib_output_handler_context_dtor(void *opaq)
277 {
278 php_zlib_context *ctx = (php_zlib_context *) opaq;
279
280 if (ctx) {
281 if (ctx->buffer.data) {
282 efree(ctx->buffer.data);
283 }
284 efree(ctx);
285 }
286 }
287 /* }}} */
288
289 /* {{{ 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)290 static php_output_handler *php_zlib_output_handler_init(const char *handler_name, size_t handler_name_len, size_t chunk_size, int flags)
291 {
292 php_output_handler *h = NULL;
293
294 if (!ZLIBG(output_compression)) {
295 ZLIBG(output_compression) = chunk_size ? chunk_size : PHP_OUTPUT_HANDLER_DEFAULT_SIZE;
296 }
297
298 ZLIBG(handler_registered) = 1;
299
300 if ((h = php_output_handler_create_internal(handler_name, handler_name_len, php_zlib_output_handler, chunk_size, flags))) {
301 php_output_handler_set_context(h, php_zlib_output_handler_context_init(), php_zlib_output_handler_context_dtor);
302 }
303
304 return h;
305 }
306 /* }}} */
307
308 /* {{{ php_zlib_output_compression_start() */
php_zlib_output_compression_start(void)309 static void php_zlib_output_compression_start(void)
310 {
311 zval zoh;
312 php_output_handler *h;
313
314 switch (ZLIBG(output_compression)) {
315 case 0:
316 break;
317 case 1:
318 ZLIBG(output_compression) = PHP_OUTPUT_HANDLER_DEFAULT_SIZE;
319 /* break omitted intentionally */
320 default:
321 if ( php_zlib_output_encoding() &&
322 (h = php_zlib_output_handler_init(ZEND_STRL(PHP_ZLIB_OUTPUT_HANDLER_NAME), ZLIBG(output_compression), PHP_OUTPUT_HANDLER_STDFLAGS)) &&
323 (SUCCESS == php_output_handler_start(h))) {
324 if (ZLIBG(output_handler) && *ZLIBG(output_handler)) {
325 ZVAL_STRING(&zoh, ZLIBG(output_handler));
326 php_output_start_user(&zoh, ZLIBG(output_compression), PHP_OUTPUT_HANDLER_STDFLAGS);
327 zval_ptr_dtor(&zoh);
328 }
329 }
330 break;
331 }
332 }
333 /* }}} */
334
335 /* {{{ php_zlib_encode() */
php_zlib_encode(const char * in_buf,size_t in_len,int encoding,int level)336 static zend_string *php_zlib_encode(const char *in_buf, size_t in_len, int encoding, int level)
337 {
338 int status;
339 z_stream Z;
340 zend_string *out;
341
342 memset(&Z, 0, sizeof(z_stream));
343 Z.zalloc = php_zlib_alloc;
344 Z.zfree = php_zlib_free;
345
346 if (Z_OK == (status = deflateInit2(&Z, level, Z_DEFLATED, encoding, MAX_MEM_LEVEL, Z_DEFAULT_STRATEGY))) {
347 out = zend_string_alloc(PHP_ZLIB_BUFFER_SIZE_GUESS(in_len), 0);
348
349 Z.next_in = (Bytef *) in_buf;
350 Z.next_out = (Bytef *) ZSTR_VAL(out);
351 Z.avail_in = in_len;
352 Z.avail_out = ZSTR_LEN(out);
353
354 status = deflate(&Z, Z_FINISH);
355 deflateEnd(&Z);
356
357 if (Z_STREAM_END == status) {
358 /* size buffer down to actual length */
359 out = zend_string_truncate(out, Z.total_out, 0);
360 ZSTR_VAL(out)[ZSTR_LEN(out)] = '\0';
361 return out;
362 } else {
363 zend_string_efree(out);
364 }
365 }
366
367 php_error_docref(NULL, E_WARNING, "%s", zError(status));
368 return NULL;
369 }
370 /* }}} */
371
372 /* {{{ php_zlib_inflate_rounds() */
php_zlib_inflate_rounds(z_stream * Z,size_t max,char ** buf,size_t * len)373 static inline int php_zlib_inflate_rounds(z_stream *Z, size_t max, char **buf, size_t *len)
374 {
375 int status, round = 0;
376 php_zlib_buffer buffer = {NULL, NULL, 0, 0, 0};
377
378 *buf = NULL;
379 *len = 0;
380
381 buffer.size = (max && (max < Z->avail_in)) ? max : Z->avail_in;
382
383 do {
384 if ((max && (max <= buffer.used)) || !(buffer.aptr = erealloc_recoverable(buffer.data, buffer.size))) {
385 status = Z_MEM_ERROR;
386 } else {
387 buffer.data = buffer.aptr;
388 Z->avail_out = buffer.free = buffer.size - buffer.used;
389 Z->next_out = (Bytef *) buffer.data + buffer.used;
390 #if 0
391 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);
392 #endif
393 status = inflate(Z, Z_NO_FLUSH);
394
395 buffer.used += buffer.free - Z->avail_out;
396 buffer.free = Z->avail_out;
397 #if 0
398 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);
399 #endif
400 buffer.size += (buffer.size >> 3) + 1;
401 }
402 } while ((Z_BUF_ERROR == status || (Z_OK == status && Z->avail_in)) && ++round < 100);
403
404 if (status == Z_STREAM_END) {
405 buffer.data = erealloc(buffer.data, buffer.used + 1);
406 buffer.data[buffer.used] = '\0';
407 *buf = buffer.data;
408 *len = buffer.used;
409 } else {
410 if (buffer.data) {
411 efree(buffer.data);
412 }
413 /* HACK: See zlib/examples/zpipe.c inf() function for explanation. */
414 /* This works as long as this function is not used for streaming. Required to catch very short invalid data. */
415 status = (status == Z_OK) ? Z_DATA_ERROR : status;
416 }
417 return status;
418 }
419 /* }}} */
420
421 /* {{{ 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)422 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)
423 {
424 int status = Z_DATA_ERROR;
425 z_stream Z;
426
427 memset(&Z, 0, sizeof(z_stream));
428 Z.zalloc = php_zlib_alloc;
429 Z.zfree = php_zlib_free;
430
431 if (in_len) {
432 retry_raw_inflate:
433 status = inflateInit2(&Z, encoding);
434 if (Z_OK == status) {
435 Z.next_in = (Bytef *) in_buf;
436 Z.avail_in = in_len + 1; /* NOTE: data must be zero terminated */
437
438 switch (status = php_zlib_inflate_rounds(&Z, max_len, out_buf, out_len)) {
439 case Z_STREAM_END:
440 inflateEnd(&Z);
441 return SUCCESS;
442
443 case Z_DATA_ERROR:
444 /* raw deflated data? */
445 if (PHP_ZLIB_ENCODING_ANY == encoding) {
446 inflateEnd(&Z);
447 encoding = PHP_ZLIB_ENCODING_RAW;
448 goto retry_raw_inflate;
449 }
450 }
451 inflateEnd(&Z);
452 }
453 }
454
455 *out_buf = NULL;
456 *out_len = 0;
457
458 php_error_docref(NULL, E_WARNING, "%s", zError(status));
459 return FAILURE;
460 }
461 /* }}} */
462
463 /* {{{ php_zlib_cleanup_ob_gzhandler_mess() */
php_zlib_cleanup_ob_gzhandler_mess(void)464 static void php_zlib_cleanup_ob_gzhandler_mess(void)
465 {
466 if (ZLIBG(ob_gzhandler)) {
467 deflateEnd(&(ZLIBG(ob_gzhandler)->Z));
468 php_zlib_output_handler_context_dtor(ZLIBG(ob_gzhandler));
469 ZLIBG(ob_gzhandler) = NULL;
470 }
471 }
472 /* }}} */
473
474 /* {{{ proto string ob_gzhandler(string data, int flags)
475 Legacy hack */
PHP_FUNCTION(ob_gzhandler)476 static PHP_FUNCTION(ob_gzhandler)
477 {
478 char *in_str;
479 size_t in_len;
480 zend_long flags = 0;
481 php_output_context ctx = {0};
482 int encoding, rv;
483
484 /*
485 * NOTE that the real ob_gzhandler is an alias to "zlib output compression".
486 * This is a really bad hack, because
487 * - we have to initialize a php_zlib_context on demand
488 * - we have to clean it up in RSHUTDOWN
489 * - OG(running) is not set or set to any other output handler
490 * - we have to mess around with php_output_context */
491
492 if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS(), "sl", &in_str, &in_len, &flags)) {
493 RETURN_FALSE;
494 }
495
496 if (!(encoding = php_zlib_output_encoding())) {
497 RETURN_FALSE;
498 }
499
500 if (flags & PHP_OUTPUT_HANDLER_START) {
501 switch (encoding) {
502 case PHP_ZLIB_ENCODING_GZIP:
503 sapi_add_header_ex(ZEND_STRL("Content-Encoding: gzip"), 1, 1);
504 break;
505 case PHP_ZLIB_ENCODING_DEFLATE:
506 sapi_add_header_ex(ZEND_STRL("Content-Encoding: deflate"), 1, 1);
507 break;
508 }
509 sapi_add_header_ex(ZEND_STRL("Vary: Accept-Encoding"), 1, 0);
510 }
511
512 if (!ZLIBG(ob_gzhandler)) {
513 ZLIBG(ob_gzhandler) = php_zlib_output_handler_context_init();
514 }
515
516 ctx.op = flags;
517 ctx.in.data = in_str;
518 ctx.in.used = in_len;
519
520 rv = php_zlib_output_handler_ex(ZLIBG(ob_gzhandler), &ctx);
521
522 if (SUCCESS != rv) {
523 if (ctx.out.data && ctx.out.free) {
524 efree(ctx.out.data);
525 }
526 php_zlib_cleanup_ob_gzhandler_mess();
527 RETURN_FALSE;
528 }
529
530 if (ctx.out.data) {
531 RETVAL_STRINGL(ctx.out.data, ctx.out.used);
532 if (ctx.out.free) {
533 efree(ctx.out.data);
534 }
535 } else {
536 RETVAL_EMPTY_STRING();
537 }
538 }
539 /* }}} */
540
541 /* {{{ proto string zlib_get_coding_type(void)
542 Returns the coding type used for output compression */
PHP_FUNCTION(zlib_get_coding_type)543 static PHP_FUNCTION(zlib_get_coding_type)
544 {
545 if (zend_parse_parameters_none() == FAILURE) {
546 return;
547 }
548 switch (ZLIBG(compression_coding)) {
549 case PHP_ZLIB_ENCODING_GZIP:
550 RETURN_STRINGL("gzip", sizeof("gzip") - 1);
551 case PHP_ZLIB_ENCODING_DEFLATE:
552 RETURN_STRINGL("deflate", sizeof("deflate") - 1);
553 default:
554 RETURN_FALSE;
555 }
556 }
557 /* }}} */
558
559 /* {{{ proto array gzfile(string filename [, int use_include_path])
560 Read and uncompress entire .gz-file into an array */
PHP_FUNCTION(gzfile)561 static PHP_FUNCTION(gzfile)
562 {
563 char *filename;
564 size_t filename_len;
565 int flags = REPORT_ERRORS;
566 char buf[8192] = {0};
567 register int i = 0;
568 zend_long use_include_path = 0;
569 php_stream *stream;
570
571 if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS(), "p|l", &filename, &filename_len, &use_include_path)) {
572 return;
573 }
574
575 if (use_include_path) {
576 flags |= USE_PATH;
577 }
578
579 /* using a stream here is a bit more efficient (resource wise) than php_gzopen_wrapper */
580 stream = php_stream_gzopen(NULL, filename, "rb", flags, NULL, NULL STREAMS_CC);
581
582 if (!stream) {
583 /* Error reporting is already done by stream code */
584 RETURN_FALSE;
585 }
586
587 /* Initialize return array */
588 array_init(return_value);
589
590 /* Now loop through the file and do the magic quotes thing if needed */
591 memset(buf, 0, sizeof(buf));
592
593 while (php_stream_gets(stream, buf, sizeof(buf) - 1) != NULL) {
594 add_index_string(return_value, i++, buf);
595 }
596 php_stream_close(stream);
597 }
598 /* }}} */
599
600 /* {{{ proto resource gzopen(string filename, string mode [, int use_include_path])
601 Open a .gz-file and return a .gz-file pointer */
PHP_FUNCTION(gzopen)602 static PHP_FUNCTION(gzopen)
603 {
604 char *filename;
605 char *mode;
606 size_t filename_len, mode_len;
607 int flags = REPORT_ERRORS;
608 php_stream *stream;
609 zend_long use_include_path = 0;
610
611 if (zend_parse_parameters(ZEND_NUM_ARGS(), "ps|l", &filename, &filename_len, &mode, &mode_len, &use_include_path) == FAILURE) {
612 return;
613 }
614
615 if (use_include_path) {
616 flags |= USE_PATH;
617 }
618
619 stream = php_stream_gzopen(NULL, filename, mode, flags, NULL, NULL STREAMS_CC);
620
621 if (!stream) {
622 RETURN_FALSE;
623 }
624 php_stream_to_zval(stream, return_value);
625 }
626 /* }}} */
627
628 /* {{{ proto int readgzfile(string filename [, int use_include_path])
629 Output a .gz-file */
PHP_FUNCTION(readgzfile)630 static PHP_FUNCTION(readgzfile)
631 {
632 char *filename;
633 size_t filename_len;
634 int flags = REPORT_ERRORS;
635 php_stream *stream;
636 size_t size;
637 zend_long use_include_path = 0;
638
639 if (zend_parse_parameters(ZEND_NUM_ARGS(), "p|l", &filename, &filename_len, &use_include_path) == FAILURE) {
640 return;
641 }
642
643 if (use_include_path) {
644 flags |= USE_PATH;
645 }
646
647 stream = php_stream_gzopen(NULL, filename, "rb", flags, NULL, NULL STREAMS_CC);
648
649 if (!stream) {
650 RETURN_FALSE;
651 }
652 size = php_stream_passthru(stream);
653 php_stream_close(stream);
654 RETURN_LONG(size);
655 }
656 /* }}} */
657
658 #define PHP_ZLIB_ENCODE_FUNC(name, default_encoding) \
659 static PHP_FUNCTION(name) \
660 { \
661 zend_string *in, *out; \
662 zend_long level = -1; \
663 zend_long encoding = default_encoding; \
664 if (default_encoding) { \
665 if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS(), "S|ll", &in, &level, &encoding)) { \
666 return; \
667 } \
668 } else { \
669 if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS(), "Sl|l", &in, &encoding, &level)) { \
670 return; \
671 } \
672 } \
673 if (level < -1 || level > 9) { \
674 php_error_docref(NULL, E_WARNING, "compression level (" ZEND_LONG_FMT ") must be within -1..9", level); \
675 RETURN_FALSE; \
676 } \
677 switch (encoding) { \
678 case PHP_ZLIB_ENCODING_RAW: \
679 case PHP_ZLIB_ENCODING_GZIP: \
680 case PHP_ZLIB_ENCODING_DEFLATE: \
681 break; \
682 default: \
683 php_error_docref(NULL, E_WARNING, "encoding mode must be either ZLIB_ENCODING_RAW, ZLIB_ENCODING_GZIP or ZLIB_ENCODING_DEFLATE"); \
684 RETURN_FALSE; \
685 } \
686 if ((out = php_zlib_encode(ZSTR_VAL(in), ZSTR_LEN(in), encoding, level)) == NULL) { \
687 RETURN_FALSE; \
688 } \
689 RETURN_STR(out); \
690 }
691
692 #define PHP_ZLIB_DECODE_FUNC(name, encoding) \
693 static PHP_FUNCTION(name) \
694 { \
695 char *in_buf, *out_buf; \
696 size_t in_len; \
697 size_t out_len; \
698 zend_long max_len = 0; \
699 if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS(), "s|l", &in_buf, &in_len, &max_len)) { \
700 return; \
701 } \
702 if (max_len < 0) { \
703 php_error_docref(NULL, E_WARNING, "length (" ZEND_LONG_FMT ") must be greater or equal zero", max_len); \
704 RETURN_FALSE; \
705 } \
706 if (SUCCESS != php_zlib_decode(in_buf, in_len, &out_buf, &out_len, encoding, max_len)) { \
707 RETURN_FALSE; \
708 } \
709 RETVAL_STRINGL(out_buf, out_len); \
710 efree(out_buf); \
711 }
712
713 /* {{{ proto binary zlib_encode(binary data, int encoding[, int level = -1])
714 Compress data with the specified encoding */
715 PHP_ZLIB_ENCODE_FUNC(zlib_encode, 0);
716 /* }}} */
717
718 /* {{{ proto binary zlib_decode(binary data[, int max_decoded_len])
719 Uncompress any raw/gzip/zlib encoded data */
720 PHP_ZLIB_DECODE_FUNC(zlib_decode, PHP_ZLIB_ENCODING_ANY);
721 /* }}} */
722
723 /* NOTE: The naming of these userland functions was quite unlucky */
724 /* {{{ proto binary gzdeflate(binary data[, int level = -1[, int encoding = ZLIB_ENCODING_RAW])
725 Encode data with the raw deflate encoding */
726 PHP_ZLIB_ENCODE_FUNC(gzdeflate, PHP_ZLIB_ENCODING_RAW);
727 /* }}} */
728
729 /* {{{ proto binary gzencode(binary data[, int level = -1[, int encoding = ZLIB_ENCODING_GZIP])
730 Encode data with the gzip encoding */
731 PHP_ZLIB_ENCODE_FUNC(gzencode, PHP_ZLIB_ENCODING_GZIP);
732 /* }}} */
733
734 /* {{{ proto binary gzcompress(binary data[, int level = -1[, int encoding = ZLIB_ENCODING_DEFLATE])
735 Encode data with the zlib encoding */
736 PHP_ZLIB_ENCODE_FUNC(gzcompress, PHP_ZLIB_ENCODING_DEFLATE);
737 /* }}} */
738
739 /* {{{ proto binary gzinflate(binary data[, int max_decoded_len])
740 Decode raw deflate encoded data */
741 PHP_ZLIB_DECODE_FUNC(gzinflate, PHP_ZLIB_ENCODING_RAW);
742 /* }}} */
743
744 /* {{{ proto binary gzdecode(binary data[, int max_decoded_len])
745 Decode gzip encoded data */
746 PHP_ZLIB_DECODE_FUNC(gzdecode, PHP_ZLIB_ENCODING_GZIP);
747 /* }}} */
748
749 /* {{{ proto binary gzuncompress(binary data[, int max_decoded_len])
750 Decode zlib encoded data */
751 PHP_ZLIB_DECODE_FUNC(gzuncompress, PHP_ZLIB_ENCODING_DEFLATE);
752 /* }}} */
753
zlib_create_dictionary_string(HashTable * options,char ** dict,size_t * dictlen)754 static zend_bool zlib_create_dictionary_string(HashTable *options, char **dict, size_t *dictlen) {
755 zval *option_buffer;
756
757 if (options && (option_buffer = zend_hash_str_find(options, ZEND_STRL("dictionary"))) != NULL) {
758 ZVAL_DEREF(option_buffer);
759 switch (Z_TYPE_P(option_buffer)) {
760 case IS_STRING: {
761 zend_string *str = Z_STR_P(option_buffer);
762 *dict = emalloc(ZSTR_LEN(str));
763 memcpy(*dict, ZSTR_VAL(str), ZSTR_LEN(str));
764 *dictlen = ZSTR_LEN(str);
765 } break;
766
767 case IS_ARRAY: {
768 HashTable *dictionary = Z_ARR_P(option_buffer);
769
770 if (zend_hash_num_elements(dictionary) > 0) {
771 char *dictptr;
772 zval *cur;
773 zend_string **strings = emalloc(sizeof(zend_string *) * zend_hash_num_elements(dictionary));
774 zend_string **end, **ptr = strings - 1;
775
776 ZEND_HASH_FOREACH_VAL(dictionary, cur) {
777 size_t i;
778
779 *++ptr = zval_get_string(cur);
780 if (!*ptr || ZSTR_LEN(*ptr) == 0 || EG(exception)) {
781 if (*ptr) {
782 efree(*ptr);
783 }
784 while (--ptr >= strings) {
785 efree(ptr);
786 }
787 efree(strings);
788 if (!EG(exception)) {
789 php_error_docref(NULL, E_WARNING, "dictionary entries must be non-empty strings");
790 }
791 return 0;
792 }
793 for (i = 0; i < ZSTR_LEN(*ptr); i++) {
794 if (ZSTR_VAL(*ptr)[i] == 0) {
795 do {
796 efree(ptr);
797 } while (--ptr >= strings);
798 efree(strings);
799 php_error_docref(NULL, E_WARNING, "dictionary entries must not contain a NULL-byte");
800 return 0;
801 }
802 }
803
804 *dictlen += ZSTR_LEN(*ptr) + 1;
805 } ZEND_HASH_FOREACH_END();
806
807 dictptr = *dict = emalloc(*dictlen);
808 ptr = strings;
809 end = strings + zend_hash_num_elements(dictionary);
810 do {
811 memcpy(dictptr, ZSTR_VAL(*ptr), ZSTR_LEN(*ptr));
812 dictptr += ZSTR_LEN(*ptr);
813 *dictptr++ = 0;
814 zend_string_release_ex(*ptr, 0);
815 } while (++ptr != end);
816 efree(strings);
817 }
818 } break;
819
820 default:
821 php_error_docref(NULL, E_WARNING, "dictionary must be of type zero-terminated string or array, got %s", zend_get_type_by_const(Z_TYPE_P(option_buffer)));
822 return 0;
823 }
824 }
825
826 return 1;
827 }
828
829 /* {{{ proto resource inflate_init(int encoding)
830 Initialize an incremental inflate context with the specified encoding */
PHP_FUNCTION(inflate_init)831 PHP_FUNCTION(inflate_init)
832 {
833 z_stream *ctx;
834 zend_long encoding, window = 15;
835 char *dict = NULL;
836 size_t dictlen = 0;
837 HashTable *options = NULL;
838 zval *option_buffer;
839
840 if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS(), "l|H", &encoding, &options)) {
841 return;
842 }
843
844 if (options && (option_buffer = zend_hash_str_find(options, ZEND_STRL("window"))) != NULL) {
845 window = zval_get_long(option_buffer);
846 }
847 if (window < 8 || window > 15) {
848 php_error_docref(NULL, E_WARNING, "zlib window size (lograithm) (" ZEND_LONG_FMT ") must be within 8..15", window);
849 RETURN_FALSE;
850 }
851
852 if (!zlib_create_dictionary_string(options, &dict, &dictlen)) {
853 RETURN_FALSE;
854 }
855
856 switch (encoding) {
857 case PHP_ZLIB_ENCODING_RAW:
858 case PHP_ZLIB_ENCODING_GZIP:
859 case PHP_ZLIB_ENCODING_DEFLATE:
860 break;
861 default:
862 php_error_docref(NULL, E_WARNING, "encoding mode must be ZLIB_ENCODING_RAW, ZLIB_ENCODING_GZIP or ZLIB_ENCODING_DEFLATE");
863 RETURN_FALSE;
864 }
865
866 ctx = ecalloc(1, sizeof(php_zlib_context));
867 ctx->zalloc = php_zlib_alloc;
868 ctx->zfree = php_zlib_free;
869 ((php_zlib_context *) ctx)->inflateDict = dict;
870 ((php_zlib_context *) ctx)->inflateDictlen = dictlen;
871 ((php_zlib_context *) ctx)->status = Z_OK;
872
873 if (encoding < 0) {
874 encoding += 15 - window;
875 } else {
876 encoding -= 15 - window;
877 }
878
879 if (Z_OK == inflateInit2(ctx, encoding)) {
880 if (encoding == PHP_ZLIB_ENCODING_RAW && dictlen > 0) {
881 php_zlib_context *php_ctx = (php_zlib_context *) ctx;
882 switch (inflateSetDictionary(ctx, (Bytef *) php_ctx->inflateDict, php_ctx->inflateDictlen)) {
883 case Z_OK:
884 efree(php_ctx->inflateDict);
885 php_ctx->inflateDict = NULL;
886 break;
887 case Z_DATA_ERROR:
888 php_error_docref(NULL, E_WARNING, "dictionary does not match expected dictionary (incorrect adler32 hash)");
889 efree(php_ctx->inflateDict);
890 php_ctx->inflateDict = NULL;
891 RETURN_FALSE;
892 EMPTY_SWITCH_DEFAULT_CASE()
893 }
894 }
895 RETURN_RES(zend_register_resource(ctx, le_inflate));
896 } else {
897 efree(ctx);
898 php_error_docref(NULL, E_WARNING, "failed allocating zlib.inflate context");
899 RETURN_FALSE;
900 }
901 }
902 /* }}} */
903
904 /* {{{ proto string inflate_add(resource context, string encoded_data[, int flush_mode = ZLIB_SYNC_FLUSH])
905 Incrementally inflate encoded data in the specified context */
PHP_FUNCTION(inflate_add)906 PHP_FUNCTION(inflate_add)
907 {
908 zend_string *out;
909 char *in_buf;
910 size_t in_len, buffer_used = 0, CHUNK_SIZE = 8192;
911 zval *res;
912 z_stream *ctx;
913 zend_long flush_type = Z_SYNC_FLUSH;
914 int status;
915
916 if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS(), "rs|l", &res, &in_buf, &in_len, &flush_type)) {
917 return;
918 }
919
920 if (!(ctx = zend_fetch_resource_ex(res, NULL, le_inflate))) {
921 php_error_docref(NULL, E_WARNING, "Invalid zlib.inflate resource");
922 RETURN_FALSE;
923 }
924
925 switch (flush_type) {
926 case Z_NO_FLUSH:
927 case Z_PARTIAL_FLUSH:
928 case Z_SYNC_FLUSH:
929 case Z_FULL_FLUSH:
930 case Z_BLOCK:
931 case Z_FINISH:
932 break;
933
934 default:
935 php_error_docref(NULL, E_WARNING,
936 "flush mode must be ZLIB_NO_FLUSH, ZLIB_PARTIAL_FLUSH, ZLIB_SYNC_FLUSH, ZLIB_FULL_FLUSH, ZLIB_BLOCK or ZLIB_FINISH");
937 RETURN_FALSE;
938 }
939
940 /* Lazy-resetting the zlib stream so ctx->total_in remains available until the next inflate_add() call. */
941 if (((php_zlib_context *) ctx)->status == Z_STREAM_END)
942 {
943 ((php_zlib_context *) ctx)->status = Z_OK;
944 inflateReset(ctx);
945 }
946
947 if (in_len <= 0 && flush_type != Z_FINISH) {
948 RETURN_EMPTY_STRING();
949 }
950
951 out = zend_string_alloc((in_len > CHUNK_SIZE) ? in_len : CHUNK_SIZE, 0);
952 ctx->next_in = (Bytef *) in_buf;
953 ctx->next_out = (Bytef *) ZSTR_VAL(out);
954 ctx->avail_in = in_len;
955 ctx->avail_out = ZSTR_LEN(out);
956
957 do {
958 status = inflate(ctx, flush_type);
959 buffer_used = ZSTR_LEN(out) - ctx->avail_out;
960
961 ((php_zlib_context *) ctx)->status = status; /* Save status for exposing to userspace */
962
963 switch (status) {
964 case Z_OK:
965 if (ctx->avail_out == 0) {
966 /* more output buffer space needed; realloc and try again */
967 out = zend_string_realloc(out, ZSTR_LEN(out) + CHUNK_SIZE, 0);
968 ctx->avail_out = CHUNK_SIZE;
969 ctx->next_out = (Bytef *) ZSTR_VAL(out) + buffer_used;
970 break;
971 } else {
972 goto complete;
973 }
974 case Z_STREAM_END:
975 goto complete;
976 case Z_BUF_ERROR:
977 if (flush_type == Z_FINISH && ctx->avail_out == 0) {
978 /* more output buffer space needed; realloc and try again */
979 out = zend_string_realloc(out, ZSTR_LEN(out) + CHUNK_SIZE, 0);
980 ctx->avail_out = CHUNK_SIZE;
981 ctx->next_out = (Bytef *) ZSTR_VAL(out) + buffer_used;
982 break;
983 } else {
984 /* No more input data; we're finished */
985 goto complete;
986 }
987 case Z_NEED_DICT:
988 if (((php_zlib_context *) ctx)->inflateDict) {
989 php_zlib_context *php_ctx = (php_zlib_context *) ctx;
990 switch (inflateSetDictionary(ctx, (Bytef *) php_ctx->inflateDict, php_ctx->inflateDictlen)) {
991 case Z_OK:
992 efree(php_ctx->inflateDict);
993 php_ctx->inflateDict = NULL;
994 break;
995 case Z_DATA_ERROR:
996 php_error_docref(NULL, E_WARNING, "dictionary does not match expected dictionary (incorrect adler32 hash)");
997 efree(php_ctx->inflateDict);
998 zend_string_release_ex(out, 0);
999 php_ctx->inflateDict = NULL;
1000 RETURN_FALSE;
1001 EMPTY_SWITCH_DEFAULT_CASE()
1002 }
1003 break;
1004 } else {
1005 php_error_docref(NULL, E_WARNING, "inflating this data requires a preset dictionary, please specify it in the options array of inflate_init()");
1006 RETURN_FALSE;
1007 }
1008 default:
1009 zend_string_release_ex(out, 0);
1010 php_error_docref(NULL, E_WARNING, "%s", zError(status));
1011 RETURN_FALSE;
1012 }
1013 } while (1);
1014
1015 complete: {
1016 out = zend_string_realloc(out, buffer_used, 0);
1017 ZSTR_VAL(out)[buffer_used] = 0;
1018 RETURN_STR(out);
1019 }
1020 }
1021 /* }}} */
1022
1023 /* {{{ proto bool inflate_get_status(resource context)
1024 Get decompression status, usually returns either ZLIB_OK or ZLIB_STREAM_END. */
PHP_FUNCTION(inflate_get_status)1025 PHP_FUNCTION(inflate_get_status)
1026 {
1027 zval *res;
1028 z_stream *ctx;
1029
1030 if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS(), "r", &res))
1031 {
1032 RETURN_NULL();
1033 }
1034
1035 if (!(ctx = zend_fetch_resource_ex(res, NULL, le_inflate))) {
1036 php_error_docref(NULL, E_WARNING, "Invalid zlib.inflate resource");
1037 RETURN_FALSE;
1038 }
1039
1040 RETURN_LONG(((php_zlib_context *) ctx)->status);
1041 }
1042 /* }}} */
1043
1044 /* {{{ proto bool inflate_get_read_len(resource context)
1045 Get number of bytes read so far. */
PHP_FUNCTION(inflate_get_read_len)1046 PHP_FUNCTION(inflate_get_read_len)
1047 {
1048 zval *res;
1049 z_stream *ctx;
1050
1051 if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS(), "r", &res))
1052 {
1053 RETURN_NULL();
1054 }
1055
1056 if (!(ctx = zend_fetch_resource_ex(res, NULL, le_inflate))) {
1057 php_error_docref(NULL, E_WARNING, "Invalid zlib.inflate resource");
1058 RETURN_FALSE;
1059 }
1060
1061 RETURN_LONG(ctx->total_in);
1062 }
1063 /* }}} */
1064
1065 /* {{{ proto resource deflate_init(int encoding[, array options])
1066 Initialize an incremental deflate context using the specified encoding */
PHP_FUNCTION(deflate_init)1067 PHP_FUNCTION(deflate_init)
1068 {
1069 z_stream *ctx;
1070 zend_long encoding, level = -1, memory = 8, window = 15, strategy = Z_DEFAULT_STRATEGY;
1071 char *dict = NULL;
1072 size_t dictlen = 0;
1073 HashTable *options = NULL;
1074 zval *option_buffer;
1075
1076 if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS(), "l|H", &encoding, &options)) {
1077 return;
1078 }
1079
1080 if (options && (option_buffer = zend_hash_str_find(options, ZEND_STRL("level"))) != NULL) {
1081 level = zval_get_long(option_buffer);
1082 }
1083 if (level < -1 || level > 9) {
1084 php_error_docref(NULL, E_WARNING, "compression level (" ZEND_LONG_FMT ") must be within -1..9", level);
1085 RETURN_FALSE;
1086 }
1087
1088 if (options && (option_buffer = zend_hash_str_find(options, ZEND_STRL("memory"))) != NULL) {
1089 memory = zval_get_long(option_buffer);
1090 }
1091 if (memory < 1 || memory > 9) {
1092 php_error_docref(NULL, E_WARNING, "compression memory level (" ZEND_LONG_FMT ") must be within 1..9", memory);
1093 RETURN_FALSE;
1094 }
1095
1096 if (options && (option_buffer = zend_hash_str_find(options, ZEND_STRL("window"))) != NULL) {
1097 window = zval_get_long(option_buffer);
1098 }
1099 if (window < 8 || window > 15) {
1100 php_error_docref(NULL, E_WARNING, "zlib window size (logarithm) (" ZEND_LONG_FMT ") must be within 8..15", window);
1101 RETURN_FALSE;
1102 }
1103
1104 if (options && (option_buffer = zend_hash_str_find(options, ZEND_STRL("strategy"))) != NULL) {
1105 strategy = zval_get_long(option_buffer);
1106 }
1107 switch (strategy) {
1108 case Z_FILTERED:
1109 case Z_HUFFMAN_ONLY:
1110 case Z_RLE:
1111 case Z_FIXED:
1112 case Z_DEFAULT_STRATEGY:
1113 break;
1114 default:
1115 php_error_docref(NULL, E_WARNING, "strategy must be one of ZLIB_FILTERED, ZLIB_HUFFMAN_ONLY, ZLIB_RLE, ZLIB_FIXED or ZLIB_DEFAULT_STRATEGY");
1116 RETURN_FALSE;
1117 }
1118
1119 if (!zlib_create_dictionary_string(options, &dict, &dictlen)) {
1120 RETURN_FALSE;
1121 }
1122
1123 switch (encoding) {
1124 case PHP_ZLIB_ENCODING_RAW:
1125 case PHP_ZLIB_ENCODING_GZIP:
1126 case PHP_ZLIB_ENCODING_DEFLATE:
1127 break;
1128 default:
1129 php_error_docref(NULL, E_WARNING,
1130 "encoding mode must be ZLIB_ENCODING_RAW, ZLIB_ENCODING_GZIP or ZLIB_ENCODING_DEFLATE");
1131 RETURN_FALSE;
1132 }
1133
1134 ctx = ecalloc(1, sizeof(php_zlib_context));
1135 ctx->zalloc = php_zlib_alloc;
1136 ctx->zfree = php_zlib_free;
1137
1138 if (encoding < 0) {
1139 encoding += 15 - window;
1140 } else {
1141 encoding -= 15 - window;
1142 }
1143
1144 if (Z_OK == deflateInit2(ctx, level, Z_DEFLATED, encoding, memory, strategy)) {
1145 if (dict) {
1146 int success = deflateSetDictionary(ctx, (Bytef *) dict, dictlen);
1147 ZEND_ASSERT(success == Z_OK);
1148 efree(dict);
1149 }
1150
1151 RETURN_RES(zend_register_resource(ctx, le_deflate));
1152 } else {
1153 efree(ctx);
1154 php_error_docref(NULL, E_WARNING, "failed allocating zlib.deflate context");
1155 RETURN_FALSE;
1156 }
1157 }
1158 /* }}} */
1159
1160 /* {{{ proto string deflate_add(resource context, string data[, int flush_mode = ZLIB_SYNC_FLUSH])
1161 Incrementally deflate data in the specified context */
PHP_FUNCTION(deflate_add)1162 PHP_FUNCTION(deflate_add)
1163 {
1164 zend_string *out;
1165 char *in_buf;
1166 size_t in_len, out_size, buffer_used;
1167 zval *res;
1168 z_stream *ctx;
1169 zend_long flush_type = Z_SYNC_FLUSH;
1170 int status;
1171
1172 if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS(), "rs|l", &res, &in_buf, &in_len, &flush_type)) {
1173 return;
1174 }
1175
1176 if (!(ctx = zend_fetch_resource_ex(res, NULL, le_deflate))) {
1177 php_error_docref(NULL, E_WARNING, "Invalid deflate resource");
1178 RETURN_FALSE;
1179 }
1180
1181 switch (flush_type) {
1182 case Z_BLOCK:
1183 #if ZLIB_VERNUM < 0x1240L
1184 php_error_docref(NULL, E_WARNING,
1185 "zlib >= 1.2.4 required for BLOCK deflate; current version: %s", ZLIB_VERSION);
1186 RETURN_FALSE;
1187 #endif
1188 case Z_NO_FLUSH:
1189 case Z_PARTIAL_FLUSH:
1190 case Z_SYNC_FLUSH:
1191 case Z_FULL_FLUSH:
1192 case Z_FINISH:
1193 break;
1194
1195 default:
1196 php_error_docref(NULL, E_WARNING,
1197 "flush mode must be ZLIB_NO_FLUSH, ZLIB_PARTIAL_FLUSH, ZLIB_SYNC_FLUSH, ZLIB_FULL_FLUSH, ZLIB_BLOCK or ZLIB_FINISH");
1198 RETURN_FALSE;
1199 }
1200
1201 if (in_len <= 0 && flush_type != Z_FINISH) {
1202 RETURN_EMPTY_STRING();
1203 }
1204
1205 out_size = PHP_ZLIB_BUFFER_SIZE_GUESS(in_len);
1206 out_size = (out_size < 64) ? 64 : out_size;
1207 out = zend_string_alloc(out_size, 0);
1208
1209 ctx->next_in = (Bytef *) in_buf;
1210 ctx->next_out = (Bytef *) ZSTR_VAL(out);
1211 ctx->avail_in = in_len;
1212 ctx->avail_out = ZSTR_LEN(out);
1213
1214 buffer_used = 0;
1215
1216 do {
1217 if (ctx->avail_out == 0) {
1218 /* more output buffer space needed; realloc and try again */
1219 /* adding 64 more bytes solved every issue I have seen */
1220 out = zend_string_realloc(out, ZSTR_LEN(out) + 64, 0);
1221 ctx->avail_out = 64;
1222 ctx->next_out = (Bytef *) ZSTR_VAL(out) + buffer_used;
1223 }
1224 status = deflate(ctx, flush_type);
1225 buffer_used = ZSTR_LEN(out) - ctx->avail_out;
1226 } while (status == Z_OK && ctx->avail_out == 0);
1227
1228 switch (status) {
1229 case Z_OK:
1230 ZSTR_LEN(out) = (char *) ctx->next_out - ZSTR_VAL(out);
1231 ZSTR_VAL(out)[ZSTR_LEN(out)] = 0;
1232 RETURN_STR(out);
1233 break;
1234 case Z_STREAM_END:
1235 ZSTR_LEN(out) = (char *) ctx->next_out - ZSTR_VAL(out);
1236 ZSTR_VAL(out)[ZSTR_LEN(out)] = 0;
1237 deflateReset(ctx);
1238 RETURN_STR(out);
1239 break;
1240 default:
1241 zend_string_release_ex(out, 0);
1242 php_error_docref(NULL, E_WARNING, "zlib error (%s)", zError(status));
1243 RETURN_FALSE;
1244 }
1245 }
1246 /* }}} */
1247
1248 #ifdef COMPILE_DL_ZLIB
1249 #ifdef ZTS
1250 ZEND_TSRMLS_CACHE_DEFINE()
1251 #endif
1252 ZEND_GET_MODULE(php_zlib)
1253 #endif
1254
1255 /* {{{ arginfo */
1256 ZEND_BEGIN_ARG_INFO_EX(arginfo_ob_gzhandler, 0, 0, 2)
1257 ZEND_ARG_INFO(0, data)
1258 ZEND_ARG_INFO(0, flags)
1259 ZEND_END_ARG_INFO()
1260
1261 ZEND_BEGIN_ARG_INFO(arginfo_zlib_get_coding_type, 0)
1262 ZEND_END_ARG_INFO()
1263
1264 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzfile, 0, 0, 1)
1265 ZEND_ARG_INFO(0, filename)
1266 ZEND_ARG_INFO(0, use_include_path)
1267 ZEND_END_ARG_INFO()
1268
1269 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzopen, 0, 0, 2)
1270 ZEND_ARG_INFO(0, filename)
1271 ZEND_ARG_INFO(0, mode)
1272 ZEND_ARG_INFO(0, use_include_path)
1273 ZEND_END_ARG_INFO()
1274
1275 ZEND_BEGIN_ARG_INFO_EX(arginfo_readgzfile, 0, 0, 1)
1276 ZEND_ARG_INFO(0, filename)
1277 ZEND_ARG_INFO(0, use_include_path)
1278 ZEND_END_ARG_INFO()
1279
1280 ZEND_BEGIN_ARG_INFO_EX(arginfo_zlib_encode, 0, 0, 2)
1281 ZEND_ARG_INFO(0, data)
1282 ZEND_ARG_INFO(0, encoding)
1283 ZEND_ARG_INFO(0, level)
1284 ZEND_END_ARG_INFO()
1285
1286 ZEND_BEGIN_ARG_INFO_EX(arginfo_zlib_decode, 0, 0, 1)
1287 ZEND_ARG_INFO(0, data)
1288 ZEND_ARG_INFO(0, max_decoded_len)
1289 ZEND_END_ARG_INFO()
1290
1291 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzdeflate, 0, 0, 1)
1292 ZEND_ARG_INFO(0, data)
1293 ZEND_ARG_INFO(0, level)
1294 ZEND_ARG_INFO(0, encoding)
1295 ZEND_END_ARG_INFO()
1296
1297 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzencode, 0, 0, 1)
1298 ZEND_ARG_INFO(0, data)
1299 ZEND_ARG_INFO(0, level)
1300 ZEND_ARG_INFO(0, encoding)
1301 ZEND_END_ARG_INFO()
1302
1303 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzcompress, 0, 0, 1)
1304 ZEND_ARG_INFO(0, data)
1305 ZEND_ARG_INFO(0, level)
1306 ZEND_ARG_INFO(0, encoding)
1307 ZEND_END_ARG_INFO()
1308
1309 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzinflate, 0, 0, 1)
1310 ZEND_ARG_INFO(0, data)
1311 ZEND_ARG_INFO(0, max_decoded_len)
1312 ZEND_END_ARG_INFO()
1313
1314 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzdecode, 0, 0, 1)
1315 ZEND_ARG_INFO(0, data)
1316 ZEND_ARG_INFO(0, max_decoded_len)
1317 ZEND_END_ARG_INFO()
1318
1319 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzuncompress, 0, 0, 1)
1320 ZEND_ARG_INFO(0, data)
1321 ZEND_ARG_INFO(0, max_decoded_len)
1322 ZEND_END_ARG_INFO()
1323
1324 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzputs, 0, 0, 2)
1325 ZEND_ARG_INFO(0, fp)
1326 ZEND_ARG_INFO(0, str)
1327 ZEND_ARG_INFO(0, length)
1328 ZEND_END_ARG_INFO()
1329
1330 ZEND_BEGIN_ARG_INFO(arginfo_gzpassthru, 0)
1331 ZEND_ARG_INFO(0, fp)
1332 ZEND_END_ARG_INFO()
1333
1334 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzseek, 0, 0, 2)
1335 ZEND_ARG_INFO(0, fp)
1336 ZEND_ARG_INFO(0, offset)
1337 ZEND_ARG_INFO(0, whence)
1338 ZEND_END_ARG_INFO()
1339
1340 ZEND_BEGIN_ARG_INFO(arginfo_gzread, 0)
1341 ZEND_ARG_INFO(0, fp)
1342 ZEND_ARG_INFO(0, length)
1343 ZEND_END_ARG_INFO()
1344
1345 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzgetss, 0, 0, 1)
1346 ZEND_ARG_INFO(0, fp)
1347 ZEND_ARG_INFO(0, length)
1348 ZEND_ARG_INFO(0, allowable_tags)
1349 ZEND_END_ARG_INFO()
1350
1351 ZEND_BEGIN_ARG_INFO_EX(arginfo_gzgets, 0, 0, 1)
1352 ZEND_ARG_INFO(0, fp)
1353 ZEND_ARG_INFO(0, length)
1354 ZEND_END_ARG_INFO()
1355
1356 ZEND_BEGIN_ARG_INFO_EX(arginfo_deflate_init, 0, 0, 1)
1357 ZEND_ARG_INFO(0, encoding)
1358 ZEND_ARG_INFO(0, level)
1359 ZEND_END_ARG_INFO()
1360
1361 ZEND_BEGIN_ARG_INFO_EX(arginfo_deflate_add, 0, 0, 2)
1362 ZEND_ARG_INFO(0, resource)
1363 ZEND_ARG_INFO(0, add)
1364 ZEND_ARG_INFO(0, flush_behavior)
1365 ZEND_END_ARG_INFO()
1366
1367 ZEND_BEGIN_ARG_INFO_EX(arginfo_inflate_init, 0, 0, 1)
1368 ZEND_ARG_INFO(0, encoding)
1369 ZEND_ARG_INFO(0, options)
1370 ZEND_END_ARG_INFO()
1371
1372 ZEND_BEGIN_ARG_INFO_EX(arginfo_inflate_add, 0, 0, 2)
1373 ZEND_ARG_INFO(0, context)
1374 ZEND_ARG_INFO(0, encoded_data)
1375 ZEND_ARG_INFO(0, flush_mode)
1376 ZEND_END_ARG_INFO()
1377
1378 ZEND_BEGIN_ARG_INFO_EX(arginfo_inflate_get_status, 0, 0, 1)
1379 ZEND_ARG_INFO(0, resource)
1380 ZEND_END_ARG_INFO()
1381
1382 ZEND_BEGIN_ARG_INFO_EX(arginfo_inflate_get_read_len, 0, 0, 1)
1383 ZEND_ARG_INFO(0, resource)
1384 ZEND_END_ARG_INFO()
1385
1386 /* }}} */
1387
1388 /* {{{ php_zlib_functions[] */
1389 static const zend_function_entry php_zlib_functions[] = {
1390 PHP_FE(readgzfile, arginfo_readgzfile)
1391 PHP_FALIAS(gzrewind, rewind, arginfo_gzpassthru)
1392 PHP_FALIAS(gzclose, fclose, arginfo_gzpassthru)
1393 PHP_FALIAS(gzeof, feof, arginfo_gzpassthru)
1394 PHP_FALIAS(gzgetc, fgetc, arginfo_gzpassthru)
1395 PHP_FALIAS(gzgets, fgets, arginfo_gzgets)
1396 PHP_DEP_FALIAS(gzgetss, fgetss, arginfo_gzgetss)
1397 PHP_FALIAS(gzread, fread, arginfo_gzread)
1398 PHP_FE(gzopen, arginfo_gzopen)
1399 PHP_FALIAS(gzpassthru, fpassthru, arginfo_gzpassthru)
1400 PHP_FALIAS(gzseek, fseek, arginfo_gzseek)
1401 PHP_FALIAS(gztell, ftell, arginfo_gzpassthru)
1402 PHP_FALIAS(gzwrite, fwrite, arginfo_gzputs)
1403 PHP_FALIAS(gzputs, fwrite, arginfo_gzputs)
1404 PHP_FE(gzfile, arginfo_gzfile)
1405 PHP_FE(gzcompress, arginfo_gzcompress)
1406 PHP_FE(gzuncompress, arginfo_gzuncompress)
1407 PHP_FE(gzdeflate, arginfo_gzdeflate)
1408 PHP_FE(gzinflate, arginfo_gzinflate)
1409 PHP_FE(gzencode, arginfo_gzencode)
1410 PHP_FE(gzdecode, arginfo_gzdecode)
1411 PHP_FE(zlib_encode, arginfo_zlib_encode)
1412 PHP_FE(zlib_decode, arginfo_zlib_decode)
1413 PHP_FE(zlib_get_coding_type, arginfo_zlib_get_coding_type)
1414 PHP_FE(deflate_init, arginfo_deflate_init)
1415 PHP_FE(deflate_add, arginfo_deflate_add)
1416 PHP_FE(inflate_init, arginfo_inflate_init)
1417 PHP_FE(inflate_add, arginfo_inflate_add)
1418 PHP_FE(inflate_get_status, arginfo_inflate_get_status)
1419 PHP_FE(inflate_get_read_len, arginfo_inflate_get_read_len)
1420 PHP_FE(ob_gzhandler, arginfo_ob_gzhandler)
1421 PHP_FE_END
1422 };
1423 /* }}} */
1424
1425 /* {{{ OnUpdate_zlib_output_compression */
PHP_INI_MH(OnUpdate_zlib_output_compression)1426 static PHP_INI_MH(OnUpdate_zlib_output_compression)
1427 {
1428 int int_value;
1429 char *ini_value;
1430 zend_long *p;
1431 #ifndef ZTS
1432 char *base = (char *) mh_arg2;
1433 #else
1434 char *base;
1435
1436 base = (char *) ts_resource(*((int *) mh_arg2));
1437 #endif
1438
1439 if (new_value == NULL) {
1440 return FAILURE;
1441 }
1442
1443 if (!strncasecmp(ZSTR_VAL(new_value), "off", sizeof("off"))) {
1444 int_value = 0;
1445 } else if (!strncasecmp(ZSTR_VAL(new_value), "on", sizeof("on"))) {
1446 int_value = 1;
1447 } else {
1448 int_value = zend_atoi(ZSTR_VAL(new_value), ZSTR_LEN(new_value));
1449 }
1450 ini_value = zend_ini_string("output_handler", sizeof("output_handler"), 0);
1451
1452 if (ini_value && *ini_value && int_value) {
1453 php_error_docref("ref.outcontrol", E_CORE_ERROR, "Cannot use both zlib.output_compression and output_handler together!!");
1454 return FAILURE;
1455 }
1456 if (stage == PHP_INI_STAGE_RUNTIME) {
1457 int status = php_output_get_status();
1458 if (status & PHP_OUTPUT_SENT) {
1459 php_error_docref("ref.outcontrol", E_WARNING, "Cannot change zlib.output_compression - headers already sent");
1460 return FAILURE;
1461 }
1462 }
1463
1464 p = (zend_long *) (base+(size_t) mh_arg1);
1465 *p = int_value;
1466
1467 ZLIBG(output_compression) = ZLIBG(output_compression_default);
1468 if (stage == PHP_INI_STAGE_RUNTIME && int_value) {
1469 if (!php_output_handler_started(ZEND_STRL(PHP_ZLIB_OUTPUT_HANDLER_NAME))) {
1470 php_zlib_output_compression_start();
1471 }
1472 }
1473
1474 return SUCCESS;
1475 }
1476 /* }}} */
1477
1478 /* {{{ OnUpdate_zlib_output_handler */
PHP_INI_MH(OnUpdate_zlib_output_handler)1479 static PHP_INI_MH(OnUpdate_zlib_output_handler)
1480 {
1481 if (stage == PHP_INI_STAGE_RUNTIME && (php_output_get_status() & PHP_OUTPUT_SENT)) {
1482 php_error_docref("ref.outcontrol", E_WARNING, "Cannot change zlib.output_handler - headers already sent");
1483 return FAILURE;
1484 }
1485
1486 return OnUpdateString(entry, new_value, mh_arg1, mh_arg2, mh_arg3, stage);
1487 }
1488 /* }}} */
1489
1490 /* {{{ INI */
1491 PHP_INI_BEGIN()
1492 STD_PHP_INI_BOOLEAN("zlib.output_compression", "0", PHP_INI_ALL, OnUpdate_zlib_output_compression, output_compression_default, zend_zlib_globals, zlib_globals)
1493 STD_PHP_INI_ENTRY("zlib.output_compression_level", "-1", PHP_INI_ALL, OnUpdateLong, output_compression_level, zend_zlib_globals, zlib_globals)
1494 STD_PHP_INI_ENTRY("zlib.output_handler", "", PHP_INI_ALL, OnUpdate_zlib_output_handler, output_handler, zend_zlib_globals, zlib_globals)
PHP_INI_END()1495 PHP_INI_END()
1496
1497 /* }}} */
1498
1499 /* {{{ PHP_MINIT_FUNCTION */
1500 static PHP_MINIT_FUNCTION(zlib)
1501 {
1502 php_register_url_stream_wrapper("compress.zlib", &php_stream_gzip_wrapper);
1503 php_stream_filter_register_factory("zlib.*", &php_zlib_filter_factory);
1504
1505 php_output_handler_alias_register(ZEND_STRL("ob_gzhandler"), php_zlib_output_handler_init);
1506 php_output_handler_conflict_register(ZEND_STRL("ob_gzhandler"), php_zlib_output_conflict_check);
1507 php_output_handler_conflict_register(ZEND_STRL(PHP_ZLIB_OUTPUT_HANDLER_NAME), php_zlib_output_conflict_check);
1508
1509 le_deflate = zend_register_list_destructors_ex(deflate_rsrc_dtor, NULL, "zlib.deflate", module_number);
1510 le_inflate = zend_register_list_destructors_ex(inflate_rsrc_dtor, NULL, "zlib.inflate", module_number);
1511
1512 REGISTER_LONG_CONSTANT("FORCE_GZIP", PHP_ZLIB_ENCODING_GZIP, CONST_CS|CONST_PERSISTENT);
1513 REGISTER_LONG_CONSTANT("FORCE_DEFLATE", PHP_ZLIB_ENCODING_DEFLATE, CONST_CS|CONST_PERSISTENT);
1514
1515 REGISTER_LONG_CONSTANT("ZLIB_ENCODING_RAW", PHP_ZLIB_ENCODING_RAW, CONST_CS|CONST_PERSISTENT);
1516 REGISTER_LONG_CONSTANT("ZLIB_ENCODING_GZIP", PHP_ZLIB_ENCODING_GZIP, CONST_CS|CONST_PERSISTENT);
1517 REGISTER_LONG_CONSTANT("ZLIB_ENCODING_DEFLATE", PHP_ZLIB_ENCODING_DEFLATE, CONST_CS|CONST_PERSISTENT);
1518
1519 REGISTER_LONG_CONSTANT("ZLIB_NO_FLUSH", Z_NO_FLUSH, CONST_CS|CONST_PERSISTENT);
1520 REGISTER_LONG_CONSTANT("ZLIB_PARTIAL_FLUSH", Z_PARTIAL_FLUSH, CONST_CS|CONST_PERSISTENT);
1521 REGISTER_LONG_CONSTANT("ZLIB_SYNC_FLUSH", Z_SYNC_FLUSH, CONST_CS|CONST_PERSISTENT);
1522 REGISTER_LONG_CONSTANT("ZLIB_FULL_FLUSH", Z_FULL_FLUSH, CONST_CS|CONST_PERSISTENT);
1523 REGISTER_LONG_CONSTANT("ZLIB_BLOCK", Z_BLOCK, CONST_CS|CONST_PERSISTENT);
1524 REGISTER_LONG_CONSTANT("ZLIB_FINISH", Z_FINISH, CONST_CS|CONST_PERSISTENT);
1525
1526 REGISTER_LONG_CONSTANT("ZLIB_FILTERED", Z_FILTERED, CONST_CS|CONST_PERSISTENT);
1527 REGISTER_LONG_CONSTANT("ZLIB_HUFFMAN_ONLY", Z_HUFFMAN_ONLY, CONST_CS|CONST_PERSISTENT);
1528 REGISTER_LONG_CONSTANT("ZLIB_RLE", Z_RLE, CONST_CS|CONST_PERSISTENT);
1529 REGISTER_LONG_CONSTANT("ZLIB_FIXED", Z_FIXED, CONST_CS|CONST_PERSISTENT);
1530 REGISTER_LONG_CONSTANT("ZLIB_DEFAULT_STRATEGY", Z_DEFAULT_STRATEGY, CONST_CS|CONST_PERSISTENT);
1531
1532 REGISTER_STRING_CONSTANT("ZLIB_VERSION", ZLIB_VERSION, CONST_CS|CONST_PERSISTENT);
1533 REGISTER_LONG_CONSTANT("ZLIB_VERNUM", ZLIB_VERNUM, CONST_CS|CONST_PERSISTENT);
1534
1535 REGISTER_LONG_CONSTANT("ZLIB_OK", Z_OK, CONST_CS|CONST_PERSISTENT);
1536 REGISTER_LONG_CONSTANT("ZLIB_STREAM_END", Z_STREAM_END, CONST_CS|CONST_PERSISTENT);
1537 REGISTER_LONG_CONSTANT("ZLIB_NEED_DICT", Z_NEED_DICT, CONST_CS|CONST_PERSISTENT);
1538 REGISTER_LONG_CONSTANT("ZLIB_ERRNO", Z_ERRNO, CONST_CS|CONST_PERSISTENT);
1539 REGISTER_LONG_CONSTANT("ZLIB_STREAM_ERROR", Z_STREAM_ERROR, CONST_CS|CONST_PERSISTENT);
1540 REGISTER_LONG_CONSTANT("ZLIB_DATA_ERROR", Z_DATA_ERROR, CONST_CS|CONST_PERSISTENT);
1541 REGISTER_LONG_CONSTANT("ZLIB_MEM_ERROR", Z_MEM_ERROR, CONST_CS|CONST_PERSISTENT);
1542 REGISTER_LONG_CONSTANT("ZLIB_BUF_ERROR", Z_BUF_ERROR, CONST_CS|CONST_PERSISTENT);
1543 REGISTER_LONG_CONSTANT("ZLIB_VERSION_ERROR", Z_VERSION_ERROR, CONST_CS|CONST_PERSISTENT);
1544
1545 REGISTER_INI_ENTRIES();
1546 return SUCCESS;
1547 }
1548 /* }}} */
1549
1550 /* {{{ PHP_MSHUTDOWN_FUNCTION */
PHP_MSHUTDOWN_FUNCTION(zlib)1551 static PHP_MSHUTDOWN_FUNCTION(zlib)
1552 {
1553 php_unregister_url_stream_wrapper("zlib");
1554 php_stream_filter_unregister_factory("zlib.*");
1555
1556 UNREGISTER_INI_ENTRIES();
1557
1558 return SUCCESS;
1559 }
1560 /* }}} */
1561
1562 /* {{{ PHP_RINIT_FUNCTION */
PHP_RINIT_FUNCTION(zlib)1563 static PHP_RINIT_FUNCTION(zlib)
1564 {
1565 ZLIBG(compression_coding) = 0;
1566 if (!ZLIBG(handler_registered)) {
1567 ZLIBG(output_compression) = ZLIBG(output_compression_default);
1568 php_zlib_output_compression_start();
1569 }
1570
1571 return SUCCESS;
1572 }
1573 /* }}} */
1574
1575 /* {{{ PHP_RSHUTDOWN_FUNCTION */
PHP_RSHUTDOWN_FUNCTION(zlib)1576 static PHP_RSHUTDOWN_FUNCTION(zlib)
1577 {
1578 php_zlib_cleanup_ob_gzhandler_mess();
1579 ZLIBG(handler_registered) = 0;
1580
1581 return SUCCESS;
1582 }
1583 /* }}} */
1584
1585 /* {{{ PHP_MINFO_FUNCTION */
PHP_MINFO_FUNCTION(zlib)1586 static PHP_MINFO_FUNCTION(zlib)
1587 {
1588 php_info_print_table_start();
1589 php_info_print_table_header(2, "ZLib Support", "enabled");
1590 php_info_print_table_row(2, "Stream Wrapper", "compress.zlib://");
1591 php_info_print_table_row(2, "Stream Filter", "zlib.inflate, zlib.deflate");
1592 php_info_print_table_row(2, "Compiled Version", ZLIB_VERSION);
1593 php_info_print_table_row(2, "Linked Version", (char *) zlibVersion());
1594 php_info_print_table_end();
1595
1596 DISPLAY_INI_ENTRIES();
1597 }
1598 /* }}} */
1599
1600 /* {{{ ZEND_MODULE_GLOBALS_CTOR */
PHP_GINIT_FUNCTION(zlib)1601 static PHP_GINIT_FUNCTION(zlib)
1602 {
1603 #if defined(COMPILE_DL_ZLIB) && defined(ZTS)
1604 ZEND_TSRMLS_CACHE_UPDATE();
1605 #endif
1606 zlib_globals->ob_gzhandler = NULL;
1607 zlib_globals->handler_registered = 0;
1608 }
1609 /* }}} */
1610
1611 /* {{{ php_zlib_module_entry */
1612 zend_module_entry php_zlib_module_entry = {
1613 STANDARD_MODULE_HEADER,
1614 "zlib",
1615 php_zlib_functions,
1616 PHP_MINIT(zlib),
1617 PHP_MSHUTDOWN(zlib),
1618 PHP_RINIT(zlib),
1619 PHP_RSHUTDOWN(zlib),
1620 PHP_MINFO(zlib),
1621 PHP_ZLIB_VERSION,
1622 PHP_MODULE_GLOBALS(zlib),
1623 PHP_GINIT(zlib),
1624 NULL,
1625 NULL,
1626 STANDARD_MODULE_PROPERTIES_EX
1627 };
1628 /* }}} */
1629
