Annotation of embedaddon/php/main/php_streams.h, revision 1.1.1.1
1.1 misho 1: /*
2: +----------------------------------------------------------------------+
3: | PHP Version 5 |
4: +----------------------------------------------------------------------+
5: | Copyright (c) 1997-2012 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: | Author: Wez Furlong (wez@thebrainroom.com) |
16: +----------------------------------------------------------------------+
17: */
18:
19: /* $Id: php_streams.h 321634 2012-01-01 13:15:04Z felipe $ */
20:
21: #ifndef PHP_STREAMS_H
22: #define PHP_STREAMS_H
23:
24: #ifdef HAVE_SYS_TIME_H
25: #include <sys/time.h>
26: #endif
27: #include <sys/types.h>
28: #include <sys/stat.h>
29:
30: BEGIN_EXTERN_C()
31: PHPAPI int php_file_le_stream(void);
32: PHPAPI int php_file_le_pstream(void);
33: PHPAPI int php_file_le_stream_filter(void);
34: END_EXTERN_C()
35:
36: /* {{{ Streams memory debugging stuff */
37:
38: #if ZEND_DEBUG
39: /* these have more of a dependency on the definitions of the zend macros than
40: * I would prefer, but doing it this way saves loads of idefs :-/ */
41: # define STREAMS_D int __php_stream_call_depth ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC
42: # define STREAMS_C 0 ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC
43: # define STREAMS_REL_C __php_stream_call_depth + 1 ZEND_FILE_LINE_CC, \
44: __php_stream_call_depth ? __zend_orig_filename : __zend_filename, \
45: __php_stream_call_depth ? __zend_orig_lineno : __zend_lineno
46:
47: # define STREAMS_DC , STREAMS_D
48: # define STREAMS_CC , STREAMS_C
49: # define STREAMS_REL_CC , STREAMS_REL_C
50:
51: #else
52: # define STREAMS_D
53: # define STREAMS_C
54: # define STREAMS_REL_C
55: # define STREAMS_DC
56: # define STREAMS_CC
57: # define STREAMS_REL_CC
58: #endif
59:
60: /* these functions relay the file/line number information. They are depth aware, so they will pass
61: * the ultimate ancestor, which is useful, because there can be several layers of calls */
62: #define php_stream_alloc_rel(ops, thisptr, persistent, mode) _php_stream_alloc((ops), (thisptr), (persistent), (mode) STREAMS_REL_CC TSRMLS_CC)
63:
64: #define php_stream_copy_to_mem_rel(src, buf, maxlen, persistent) _php_stream_copy_to_mem((src), (buf), (maxlen), (persistent) STREAMS_REL_CC TSRMLS_CC)
65:
66: #define php_stream_fopen_rel(filename, mode, opened, options) _php_stream_fopen((filename), (mode), (opened), (options) STREAMS_REL_CC TSRMLS_CC)
67:
68: #define php_stream_fopen_with_path_rel(filename, mode, path, opened, options) _php_stream_fopen_with_path((filename), (mode), (path), (opened), (options) STREAMS_REL_CC TSRMLS_CC)
69:
70: #define php_stream_fopen_from_fd_rel(fd, mode, persistent_id) _php_stream_fopen_from_fd((fd), (mode), (persistent_id) STREAMS_REL_CC TSRMLS_CC)
71: #define php_stream_fopen_from_file_rel(file, mode) _php_stream_fopen_from_file((file), (mode) STREAMS_REL_CC TSRMLS_CC)
72:
73: #define php_stream_fopen_from_pipe_rel(file, mode) _php_stream_fopen_from_pipe((file), (mode) STREAMS_REL_CC TSRMLS_CC)
74:
75: #define php_stream_fopen_tmpfile_rel() _php_stream_fopen_tmpfile(0 STREAMS_REL_CC TSRMLS_CC)
76:
77: #define php_stream_fopen_temporary_file_rel(dir, pfx, opened_path) _php_stream_fopen_temporary_file((dir), (pfx), (opened_path) STREAMS_REL_CC TSRMLS_CC)
78:
79: #define php_stream_open_wrapper_rel(path, mode, options, opened) _php_stream_open_wrapper_ex((path), (mode), (options), (opened), NULL STREAMS_REL_CC TSRMLS_CC)
80: #define php_stream_open_wrapper_ex_rel(path, mode, options, opened, context) _php_stream_open_wrapper_ex((path), (mode), (options), (opened), (context) STREAMS_REL_CC TSRMLS_CC)
81:
82: #define php_stream_make_seekable_rel(origstream, newstream, flags) _php_stream_make_seekable((origstream), (newstream), (flags) STREAMS_REL_CC TSRMLS_CC)
83:
84: /* }}} */
85:
86: /* The contents of the php_stream_ops and php_stream should only be accessed
87: * using the functions/macros in this header.
88: * If you need to get at something that doesn't have an API,
89: * drop me a line <wez@thebrainroom.com> and we can sort out a way to do
90: * it properly.
91: *
92: * The only exceptions to this rule are that stream implementations can use
93: * the php_stream->abstract pointer to hold their context, and streams
94: * opened via stream_open_wrappers can use the zval ptr in
95: * php_stream->wrapperdata to hold meta data for php scripts to
96: * retrieve using file_get_wrapper_data(). */
97:
98: typedef struct _php_stream php_stream;
99: typedef struct _php_stream_wrapper php_stream_wrapper;
100: typedef struct _php_stream_context php_stream_context;
101: typedef struct _php_stream_filter php_stream_filter;
102:
103: #include "streams/php_stream_context.h"
104: #include "streams/php_stream_filter_api.h"
105:
106: typedef struct _php_stream_statbuf {
107: struct stat sb; /* regular info */
108: /* extended info to go here some day: content-type etc. etc. */
109: } php_stream_statbuf;
110:
111: typedef struct _php_stream_dirent {
112: char d_name[MAXPATHLEN];
113: } php_stream_dirent;
114:
115: /* operations on streams that are file-handles */
116: typedef struct _php_stream_ops {
117: /* stdio like functions - these are mandatory! */
118: size_t (*write)(php_stream *stream, const char *buf, size_t count TSRMLS_DC);
119: size_t (*read)(php_stream *stream, char *buf, size_t count TSRMLS_DC);
120: int (*close)(php_stream *stream, int close_handle TSRMLS_DC);
121: int (*flush)(php_stream *stream TSRMLS_DC);
122:
123: const char *label; /* label for this ops structure */
124:
125: /* these are optional */
126: int (*seek)(php_stream *stream, off_t offset, int whence, off_t *newoffset TSRMLS_DC);
127: int (*cast)(php_stream *stream, int castas, void **ret TSRMLS_DC);
128: int (*stat)(php_stream *stream, php_stream_statbuf *ssb TSRMLS_DC);
129: int (*set_option)(php_stream *stream, int option, int value, void *ptrparam TSRMLS_DC);
130: } php_stream_ops;
131:
132: typedef struct _php_stream_wrapper_ops {
133: /* open/create a wrapped stream */
134: php_stream *(*stream_opener)(php_stream_wrapper *wrapper, char *filename, char *mode,
135: int options, char **opened_path, php_stream_context *context STREAMS_DC TSRMLS_DC);
136: /* close/destroy a wrapped stream */
137: int (*stream_closer)(php_stream_wrapper *wrapper, php_stream *stream TSRMLS_DC);
138: /* stat a wrapped stream */
139: int (*stream_stat)(php_stream_wrapper *wrapper, php_stream *stream, php_stream_statbuf *ssb TSRMLS_DC);
140: /* stat a URL */
141: int (*url_stat)(php_stream_wrapper *wrapper, char *url, int flags, php_stream_statbuf *ssb, php_stream_context *context TSRMLS_DC);
142: /* open a "directory" stream */
143: php_stream *(*dir_opener)(php_stream_wrapper *wrapper, char *filename, char *mode,
144: int options, char **opened_path, php_stream_context *context STREAMS_DC TSRMLS_DC);
145:
146: const char *label;
147:
148: /* delete a file */
149: int (*unlink)(php_stream_wrapper *wrapper, char *url, int options, php_stream_context *context TSRMLS_DC);
150:
151: /* rename a file */
152: int (*rename)(php_stream_wrapper *wrapper, char *url_from, char *url_to, int options, php_stream_context *context TSRMLS_DC);
153:
154: /* Create/Remove directory */
155: int (*stream_mkdir)(php_stream_wrapper *wrapper, char *url, int mode, int options, php_stream_context *context TSRMLS_DC);
156: int (*stream_rmdir)(php_stream_wrapper *wrapper, char *url, int options, php_stream_context *context TSRMLS_DC);
157: } php_stream_wrapper_ops;
158:
159: struct _php_stream_wrapper {
160: php_stream_wrapper_ops *wops; /* operations the wrapper can perform */
161: void *abstract; /* context for the wrapper */
162: int is_url; /* so that PG(allow_url_fopen) can be respected */
163:
164: /* support for wrappers to return (multiple) error messages to the stream opener */
165: int err_count;
166: char **err_stack;
167: };
168:
169: #define PHP_STREAM_FLAG_NO_SEEK 1
170: #define PHP_STREAM_FLAG_NO_BUFFER 2
171:
172: #define PHP_STREAM_FLAG_EOL_UNIX 0 /* also includes DOS */
173: #define PHP_STREAM_FLAG_DETECT_EOL 4
174: #define PHP_STREAM_FLAG_EOL_MAC 8
175:
176: /* set this when the stream might represent "interactive" data.
177: * When set, the read buffer will avoid certain operations that
178: * might otherwise cause the read to block for much longer than
179: * is strictly required. */
180: #define PHP_STREAM_FLAG_AVOID_BLOCKING 16
181:
182: #define PHP_STREAM_FLAG_NO_CLOSE 32
183:
184: #define PHP_STREAM_FLAG_IS_DIR 64
185:
186: #define PHP_STREAM_FLAG_NO_FCLOSE 128
187:
188: struct _php_stream {
189: php_stream_ops *ops;
190: void *abstract; /* convenience pointer for abstraction */
191:
192: php_stream_filter_chain readfilters, writefilters;
193:
194: php_stream_wrapper *wrapper; /* which wrapper was used to open the stream */
195: void *wrapperthis; /* convenience pointer for a instance of a wrapper */
196: zval *wrapperdata; /* fgetwrapperdata retrieves this */
197:
198: int fgetss_state; /* for fgetss to handle multiline tags */
199: int is_persistent;
200: char mode[16]; /* "rwb" etc. ala stdio */
201: int rsrc_id; /* used for auto-cleanup */
202: int in_free; /* to prevent recursion during free */
203: /* so we know how to clean it up correctly. This should be set to
204: * PHP_STREAM_FCLOSE_XXX as appropriate */
205: int fclose_stdiocast;
206: FILE *stdiocast; /* cache this, otherwise we might leak! */
207: #if ZEND_DEBUG
208: int __exposed; /* non-zero if exposed as a zval somewhere */
209: #endif
210: char *orig_path;
211:
212: php_stream_context *context;
213: int flags; /* PHP_STREAM_FLAG_XXX */
214:
215: /* buffer */
216: off_t position; /* of underlying stream */
217: unsigned char *readbuf;
218: size_t readbuflen;
219: off_t readpos;
220: off_t writepos;
221:
222: /* how much data to read when filling buffer */
223: size_t chunk_size;
224:
225: int eof;
226:
227: #if ZEND_DEBUG
228: char *open_filename;
229: uint open_lineno;
230: #endif
231: }; /* php_stream */
232:
233: /* state definitions when closing down; these are private to streams.c */
234: #define PHP_STREAM_FCLOSE_NONE 0
235: #define PHP_STREAM_FCLOSE_FDOPEN 1
236: #define PHP_STREAM_FCLOSE_FOPENCOOKIE 2
237:
238: /* allocate a new stream for a particular ops */
239: BEGIN_EXTERN_C()
240: PHPAPI php_stream *_php_stream_alloc(php_stream_ops *ops, void *abstract,
241: const char *persistent_id, const char *mode STREAMS_DC TSRMLS_DC);
242: END_EXTERN_C()
243: #define php_stream_alloc(ops, thisptr, persistent_id, mode) _php_stream_alloc((ops), (thisptr), (persistent_id), (mode) STREAMS_CC TSRMLS_CC)
244:
245: #define php_stream_get_resource_id(stream) (stream)->rsrc_id
246: #if ZEND_DEBUG
247: /* use this to tell the stream that it is OK if we don't explicitly close it */
248: # define php_stream_auto_cleanup(stream) { (stream)->__exposed++; }
249: /* use this to assign the stream to a zval and tell the stream that is
250: * has been exported to the engine; it will expect to be closed automatically
251: * when the resources are auto-destructed */
252: # define php_stream_to_zval(stream, zval) { ZVAL_RESOURCE(zval, (stream)->rsrc_id); (stream)->__exposed++; }
253: #else
254: # define php_stream_auto_cleanup(stream) /* nothing */
255: # define php_stream_to_zval(stream, zval) { ZVAL_RESOURCE(zval, (stream)->rsrc_id); }
256: #endif
257:
258: #define php_stream_from_zval(xstr, ppzval) ZEND_FETCH_RESOURCE2((xstr), php_stream *, (ppzval), -1, "stream", php_file_le_stream(), php_file_le_pstream())
259: #define php_stream_from_zval_no_verify(xstr, ppzval) (xstr) = (php_stream*)zend_fetch_resource((ppzval) TSRMLS_CC, -1, "stream", NULL, 2, php_file_le_stream(), php_file_le_pstream())
260:
261: BEGIN_EXTERN_C()
262: PHPAPI int php_stream_from_persistent_id(const char *persistent_id, php_stream **stream TSRMLS_DC);
263: #define PHP_STREAM_PERSISTENT_SUCCESS 0 /* id exists */
264: #define PHP_STREAM_PERSISTENT_FAILURE 1 /* id exists but is not a stream! */
265: #define PHP_STREAM_PERSISTENT_NOT_EXIST 2 /* id does not exist */
266:
267: #define PHP_STREAM_FREE_CALL_DTOR 1 /* call ops->close */
268: #define PHP_STREAM_FREE_RELEASE_STREAM 2 /* pefree(stream) */
269: #define PHP_STREAM_FREE_PRESERVE_HANDLE 4 /* tell ops->close to not close it's underlying handle */
270: #define PHP_STREAM_FREE_RSRC_DTOR 8 /* called from the resource list dtor */
271: #define PHP_STREAM_FREE_PERSISTENT 16 /* manually freeing a persistent connection */
272: #define PHP_STREAM_FREE_CLOSE (PHP_STREAM_FREE_CALL_DTOR | PHP_STREAM_FREE_RELEASE_STREAM)
273: #define PHP_STREAM_FREE_CLOSE_CASTED (PHP_STREAM_FREE_CLOSE | PHP_STREAM_FREE_PRESERVE_HANDLE)
274: #define PHP_STREAM_FREE_CLOSE_PERSISTENT (PHP_STREAM_FREE_CLOSE | PHP_STREAM_FREE_PERSISTENT)
275:
276: PHPAPI int _php_stream_free(php_stream *stream, int close_options TSRMLS_DC);
277: #define php_stream_free(stream, close_options) _php_stream_free((stream), (close_options) TSRMLS_CC)
278: #define php_stream_close(stream) _php_stream_free((stream), PHP_STREAM_FREE_CLOSE TSRMLS_CC)
279: #define php_stream_pclose(stream) _php_stream_free((stream), PHP_STREAM_FREE_CLOSE_PERSISTENT TSRMLS_CC)
280:
281: PHPAPI int _php_stream_seek(php_stream *stream, off_t offset, int whence TSRMLS_DC);
282: #define php_stream_rewind(stream) _php_stream_seek((stream), 0L, SEEK_SET TSRMLS_CC)
283: #define php_stream_seek(stream, offset, whence) _php_stream_seek((stream), (offset), (whence) TSRMLS_CC)
284:
285: PHPAPI off_t _php_stream_tell(php_stream *stream TSRMLS_DC);
286: #define php_stream_tell(stream) _php_stream_tell((stream) TSRMLS_CC)
287:
288: PHPAPI size_t _php_stream_read(php_stream *stream, char *buf, size_t count TSRMLS_DC);
289: #define php_stream_read(stream, buf, count) _php_stream_read((stream), (buf), (count) TSRMLS_CC)
290:
291: PHPAPI size_t _php_stream_write(php_stream *stream, const char *buf, size_t count TSRMLS_DC);
292: #define php_stream_write_string(stream, str) _php_stream_write(stream, str, strlen(str) TSRMLS_CC)
293: #define php_stream_write(stream, buf, count) _php_stream_write(stream, (buf), (count) TSRMLS_CC)
294:
295: #ifdef ZTS
296: PHPAPI size_t _php_stream_printf(php_stream *stream TSRMLS_DC, const char *fmt, ...) PHP_ATTRIBUTE_FORMAT(printf, 3, 4);
297: #else
298: PHPAPI size_t _php_stream_printf(php_stream *stream TSRMLS_DC, const char *fmt, ...) PHP_ATTRIBUTE_FORMAT(printf, 2, 3);
299: #endif
300:
301: /* php_stream_printf macro & function require TSRMLS_CC */
302: #define php_stream_printf _php_stream_printf
303:
304: PHPAPI int _php_stream_eof(php_stream *stream TSRMLS_DC);
305: #define php_stream_eof(stream) _php_stream_eof((stream) TSRMLS_CC)
306:
307: PHPAPI int _php_stream_getc(php_stream *stream TSRMLS_DC);
308: #define php_stream_getc(stream) _php_stream_getc((stream) TSRMLS_CC)
309:
310: PHPAPI int _php_stream_putc(php_stream *stream, int c TSRMLS_DC);
311: #define php_stream_putc(stream, c) _php_stream_putc((stream), (c) TSRMLS_CC)
312:
313: PHPAPI int _php_stream_flush(php_stream *stream, int closing TSRMLS_DC);
314: #define php_stream_flush(stream) _php_stream_flush((stream), 0 TSRMLS_CC)
315:
316: PHPAPI char *_php_stream_get_line(php_stream *stream, char *buf, size_t maxlen, size_t *returned_len TSRMLS_DC);
317: #define php_stream_gets(stream, buf, maxlen) _php_stream_get_line((stream), (buf), (maxlen), NULL TSRMLS_CC)
318:
319: #define php_stream_get_line(stream, buf, maxlen, retlen) _php_stream_get_line((stream), (buf), (maxlen), (retlen) TSRMLS_CC)
320: PHPAPI char *php_stream_get_record(php_stream *stream, size_t maxlen, size_t *returned_len, char *delim, size_t delim_len TSRMLS_DC);
321:
322: /* CAREFUL! this is equivalent to puts NOT fputs! */
323: PHPAPI int _php_stream_puts(php_stream *stream, char *buf TSRMLS_DC);
324: #define php_stream_puts(stream, buf) _php_stream_puts((stream), (buf) TSRMLS_CC)
325:
326: PHPAPI int _php_stream_stat(php_stream *stream, php_stream_statbuf *ssb TSRMLS_DC);
327: #define php_stream_stat(stream, ssb) _php_stream_stat((stream), (ssb) TSRMLS_CC)
328:
329: PHPAPI int _php_stream_stat_path(char *path, int flags, php_stream_statbuf *ssb, php_stream_context *context TSRMLS_DC);
330: #define php_stream_stat_path(path, ssb) _php_stream_stat_path((path), 0, (ssb), NULL TSRMLS_CC)
331: #define php_stream_stat_path_ex(path, flags, ssb, context) _php_stream_stat_path((path), (flags), (ssb), (context) TSRMLS_CC)
332:
333: PHPAPI int _php_stream_mkdir(char *path, int mode, int options, php_stream_context *context TSRMLS_DC);
334: #define php_stream_mkdir(path, mode, options, context) _php_stream_mkdir(path, mode, options, context TSRMLS_CC)
335:
336: PHPAPI int _php_stream_rmdir(char *path, int options, php_stream_context *context TSRMLS_DC);
337: #define php_stream_rmdir(path, options, context) _php_stream_rmdir(path, options, context TSRMLS_CC)
338:
339: PHPAPI php_stream *_php_stream_opendir(char *path, int options, php_stream_context *context STREAMS_DC TSRMLS_DC);
340: #define php_stream_opendir(path, options, context) _php_stream_opendir((path), (options), (context) STREAMS_CC TSRMLS_CC)
341: PHPAPI php_stream_dirent *_php_stream_readdir(php_stream *dirstream, php_stream_dirent *ent TSRMLS_DC);
342: #define php_stream_readdir(dirstream, dirent) _php_stream_readdir((dirstream), (dirent) TSRMLS_CC)
343: #define php_stream_closedir(dirstream) php_stream_close((dirstream))
344: #define php_stream_rewinddir(dirstream) php_stream_rewind((dirstream))
345:
346: PHPAPI int php_stream_dirent_alphasort(const char **a, const char **b);
347: PHPAPI int php_stream_dirent_alphasortr(const char **a, const char **b);
348:
349: PHPAPI int _php_stream_scandir(char *dirname, char **namelist[], int flags, php_stream_context *context,
350: int (*compare) (const char **a, const char **b) TSRMLS_DC);
351: #define php_stream_scandir(dirname, namelist, context, compare) _php_stream_scandir((dirname), (namelist), 0, (context), (compare) TSRMLS_CC)
352:
353: PHPAPI int _php_stream_set_option(php_stream *stream, int option, int value, void *ptrparam TSRMLS_DC);
354: #define php_stream_set_option(stream, option, value, ptrvalue) _php_stream_set_option((stream), (option), (value), (ptrvalue) TSRMLS_CC)
355:
356: #define php_stream_set_chunk_size(stream, size) _php_stream_set_option((stream), PHP_STREAM_OPTION_SET_CHUNK_SIZE, (size), NULL TSRMLS_CC)
357:
358: END_EXTERN_C()
359:
360:
361: /* Flags for mkdir method in wrapper ops */
362: #define PHP_STREAM_MKDIR_RECURSIVE 1
363: /* define REPORT ERRORS 8 (below) */
364:
365: /* Flags for rmdir method in wrapper ops */
366: /* define REPORT_ERRORS 8 (below) */
367:
368: /* Flags for url_stat method in wrapper ops */
369: #define PHP_STREAM_URL_STAT_LINK 1
370: #define PHP_STREAM_URL_STAT_QUIET 2
371:
372: /* change the blocking mode of stream: value == 1 => blocking, value == 0 => non-blocking. */
373: #define PHP_STREAM_OPTION_BLOCKING 1
374:
375: /* change the buffering mode of stream. value is a PHP_STREAM_BUFFER_XXXX value, ptrparam is a ptr to a size_t holding
376: * the required buffer size */
377: #define PHP_STREAM_OPTION_READ_BUFFER 2
378: #define PHP_STREAM_OPTION_WRITE_BUFFER 3
379:
380: #define PHP_STREAM_BUFFER_NONE 0 /* unbuffered */
381: #define PHP_STREAM_BUFFER_LINE 1 /* line buffered */
382: #define PHP_STREAM_BUFFER_FULL 2 /* fully buffered */
383:
384: /* set the timeout duration for reads on the stream. ptrparam is a pointer to a struct timeval * */
385: #define PHP_STREAM_OPTION_READ_TIMEOUT 4
386: #define PHP_STREAM_OPTION_SET_CHUNK_SIZE 5
387:
388: /* set or release lock on a stream */
389: #define PHP_STREAM_OPTION_LOCKING 6
390:
391: /* whether or not locking is supported */
392: #define PHP_STREAM_LOCK_SUPPORTED 1
393:
394: #define php_stream_supports_lock(stream) _php_stream_set_option((stream), PHP_STREAM_OPTION_LOCKING, 0, (void *) PHP_STREAM_LOCK_SUPPORTED TSRMLS_CC) == 0 ? 1 : 0
395: #define php_stream_lock(stream, mode) _php_stream_set_option((stream), PHP_STREAM_OPTION_LOCKING, (mode), (void *) NULL TSRMLS_CC)
396:
397: /* option code used by the php_stream_xport_XXX api */
398: #define PHP_STREAM_OPTION_XPORT_API 7 /* see php_stream_transport.h */
399: #define PHP_STREAM_OPTION_CRYPTO_API 8 /* see php_stream_transport.h */
400: #define PHP_STREAM_OPTION_MMAP_API 9 /* see php_stream_mmap.h */
401: #define PHP_STREAM_OPTION_TRUNCATE_API 10
402:
403: #define PHP_STREAM_TRUNCATE_SUPPORTED 0
404: #define PHP_STREAM_TRUNCATE_SET_SIZE 1 /* ptrparam is a pointer to a size_t */
405:
406: #define php_stream_truncate_supported(stream) (_php_stream_set_option((stream), PHP_STREAM_OPTION_TRUNCATE_API, PHP_STREAM_TRUNCATE_SUPPORTED, NULL TSRMLS_CC) == PHP_STREAM_OPTION_RETURN_OK ? 1 : 0)
407:
408: BEGIN_EXTERN_C()
409: PHPAPI int _php_stream_truncate_set_size(php_stream *stream, size_t newsize TSRMLS_DC);
410: #define php_stream_truncate_set_size(stream, size) _php_stream_truncate_set_size((stream), (size) TSRMLS_CC)
411: END_EXTERN_C()
412:
413: #define PHP_STREAM_OPTION_META_DATA_API 11 /* ptrparam is a zval* to which to add meta data information */
414: #define php_stream_populate_meta_data(stream, zv) (_php_stream_set_option((stream), PHP_STREAM_OPTION_META_DATA_API, 0, zv TSRMLS_CC) == PHP_STREAM_OPTION_RETURN_OK ? 1 : 0)
415:
416: /* Check if the stream is still "live"; for sockets/pipes this means the socket
417: * is still connected; for files, this does not really have meaning */
418: #define PHP_STREAM_OPTION_CHECK_LIVENESS 12 /* no parameters */
419:
420: #define PHP_STREAM_OPTION_RETURN_OK 0 /* option set OK */
421: #define PHP_STREAM_OPTION_RETURN_ERR -1 /* problem setting option */
422: #define PHP_STREAM_OPTION_RETURN_NOTIMPL -2 /* underlying stream does not implement; streams can handle it instead */
423:
424: /* copy up to maxlen bytes from src to dest. If maxlen is PHP_STREAM_COPY_ALL,
425: * copy until eof(src). */
426: #define PHP_STREAM_COPY_ALL ((size_t)-1)
427:
428: BEGIN_EXTERN_C()
429: ZEND_ATTRIBUTE_DEPRECATED
430: PHPAPI size_t _php_stream_copy_to_stream(php_stream *src, php_stream *dest, size_t maxlen STREAMS_DC TSRMLS_DC);
431: #define php_stream_copy_to_stream(src, dest, maxlen) _php_stream_copy_to_stream((src), (dest), (maxlen) STREAMS_CC TSRMLS_CC)
432: PHPAPI size_t _php_stream_copy_to_stream_ex(php_stream *src, php_stream *dest, size_t maxlen, size_t *len STREAMS_DC TSRMLS_DC);
433: #define php_stream_copy_to_stream_ex(src, dest, maxlen, len) _php_stream_copy_to_stream_ex((src), (dest), (maxlen), (len) STREAMS_CC TSRMLS_CC)
434:
435:
436: /* read all data from stream and put into a buffer. Caller must free buffer
437: * when done. */
438: PHPAPI size_t _php_stream_copy_to_mem(php_stream *src, char **buf, size_t maxlen,
439: int persistent STREAMS_DC TSRMLS_DC);
440: #define php_stream_copy_to_mem(src, buf, maxlen, persistent) _php_stream_copy_to_mem((src), (buf), (maxlen), (persistent) STREAMS_CC TSRMLS_CC)
441:
442: /* output all data from a stream */
443: PHPAPI size_t _php_stream_passthru(php_stream * src STREAMS_DC TSRMLS_DC);
444: #define php_stream_passthru(stream) _php_stream_passthru((stream) STREAMS_CC TSRMLS_CC)
445: END_EXTERN_C()
446:
447: #include "streams/php_stream_transport.h"
448: #include "streams/php_stream_plain_wrapper.h"
449: #include "streams/php_stream_glob_wrapper.h"
450: #include "streams/php_stream_userspace.h"
451: #include "streams/php_stream_mmap.h"
452:
453: /* coerce the stream into some other form */
454: /* cast as a stdio FILE * */
455: #define PHP_STREAM_AS_STDIO 0
456: /* cast as a POSIX fd or socketd */
457: #define PHP_STREAM_AS_FD 1
458: /* cast as a socketd */
459: #define PHP_STREAM_AS_SOCKETD 2
460: /* cast as fd/socket for select purposes */
461: #define PHP_STREAM_AS_FD_FOR_SELECT 3
462:
463: /* try really, really hard to make sure the cast happens (avoid using this flag if possible) */
464: #define PHP_STREAM_CAST_TRY_HARD 0x80000000
465: #define PHP_STREAM_CAST_RELEASE 0x40000000 /* stream becomes invalid on success */
466: #define PHP_STREAM_CAST_INTERNAL 0x20000000 /* stream cast for internal use */
467: #define PHP_STREAM_CAST_MASK (PHP_STREAM_CAST_TRY_HARD | PHP_STREAM_CAST_RELEASE | PHP_STREAM_CAST_INTERNAL)
468: BEGIN_EXTERN_C()
469: PHPAPI int _php_stream_cast(php_stream *stream, int castas, void **ret, int show_err TSRMLS_DC);
470: END_EXTERN_C()
471: /* use this to check if a stream can be cast into another form */
472: #define php_stream_can_cast(stream, as) _php_stream_cast((stream), (as), NULL, 0 TSRMLS_CC)
473: #define php_stream_cast(stream, as, ret, show_err) _php_stream_cast((stream), (as), (ret), (show_err) TSRMLS_CC)
474:
475: /* use this to check if a stream is of a particular type:
476: * PHPAPI int php_stream_is(php_stream *stream, php_stream_ops *ops); */
477: #define php_stream_is(stream, anops) ((stream)->ops == anops)
478: #define PHP_STREAM_IS_STDIO &php_stream_stdio_ops
479:
480: #define php_stream_is_persistent(stream) (stream)->is_persistent
481:
482: /* Wrappers support */
483:
484: #define IGNORE_PATH 0x00000000
485: #define USE_PATH 0x00000001
486: #define IGNORE_URL 0x00000002
487: #define ENFORCE_SAFE_MODE 0x00000004
488: #define REPORT_ERRORS 0x00000008
489:
490: /* If you don't need to write to the stream, but really need to
491: * be able to seek, use this flag in your options. */
492: #define STREAM_MUST_SEEK 0x00000010
493: /* If you are going to end up casting the stream into a FILE* or
494: * a socket, pass this flag and the streams/wrappers will not use
495: * buffering mechanisms while reading the headers, so that HTTP
496: * wrapped streams will work consistently.
497: * If you omit this flag, streams will use buffering and should end
498: * up working more optimally.
499: * */
500: #define STREAM_WILL_CAST 0x00000020
501:
502: /* this flag applies to php_stream_locate_url_wrapper */
503: #define STREAM_LOCATE_WRAPPERS_ONLY 0x00000040
504:
505: /* this flag is only used by include/require functions */
506: #define STREAM_OPEN_FOR_INCLUDE 0x00000080
507:
508: /* this flag tells streams to ONLY open urls */
509: #define STREAM_USE_URL 0x00000100
510:
511: /* this flag is used when only the headers from HTTP request are to be fetched */
512: #define STREAM_ONLY_GET_HEADERS 0x00000200
513:
514: /* don't apply open_basedir checks */
515: #define STREAM_DISABLE_OPEN_BASEDIR 0x00000400
516:
517: /* get (or create) a persistent version of the stream */
518: #define STREAM_OPEN_PERSISTENT 0x00000800
519:
520: /* use glob stream for directory open in plain files stream */
521: #define STREAM_USE_GLOB_DIR_OPEN 0x00001000
522:
523: /* don't check allow_url_fopen and allow_url_include */
524: #define STREAM_DISABLE_URL_PROTECTION 0x00002000
525:
526: /* assume the path passed in exists and is fully expanded, avoiding syscalls */
527: #define STREAM_ASSUME_REALPATH 0x00004000
528:
529: /* Antique - no longer has meaning */
530: #define IGNORE_URL_WIN 0
531:
532: int php_init_stream_wrappers(int module_number TSRMLS_DC);
533: int php_shutdown_stream_wrappers(int module_number TSRMLS_DC);
534: void php_shutdown_stream_hashes(TSRMLS_D);
535: PHP_RSHUTDOWN_FUNCTION(streams);
536:
537: BEGIN_EXTERN_C()
538: PHPAPI int php_register_url_stream_wrapper(char *protocol, php_stream_wrapper *wrapper TSRMLS_DC);
539: PHPAPI int php_unregister_url_stream_wrapper(char *protocol TSRMLS_DC);
540: PHPAPI int php_register_url_stream_wrapper_volatile(char *protocol, php_stream_wrapper *wrapper TSRMLS_DC);
541: PHPAPI int php_unregister_url_stream_wrapper_volatile(char *protocol TSRMLS_DC);
542: PHPAPI php_stream *_php_stream_open_wrapper_ex(char *path, char *mode, int options, char **opened_path, php_stream_context *context STREAMS_DC TSRMLS_DC);
543: PHPAPI php_stream_wrapper *php_stream_locate_url_wrapper(const char *path, char **path_for_open, int options TSRMLS_DC);
544: PHPAPI char *php_stream_locate_eol(php_stream *stream, char *buf, size_t buf_len TSRMLS_DC);
545:
546: #define php_stream_open_wrapper(path, mode, options, opened) _php_stream_open_wrapper_ex((path), (mode), (options), (opened), NULL STREAMS_CC TSRMLS_CC)
547: #define php_stream_open_wrapper_ex(path, mode, options, opened, context) _php_stream_open_wrapper_ex((path), (mode), (options), (opened), (context) STREAMS_CC TSRMLS_CC)
548:
549: #define php_stream_get_from_zval(stream, zstream, mode, options, opened, context) \
550: if (Z_TYPE_PP((zstream)) == IS_RESOURCE) { \
551: php_stream_from_zval((stream), (zstream)); \
552: } else (stream) = Z_TYPE_PP((zstream)) == IS_STRING ? \
553: php_stream_open_wrapper_ex(Z_STRVAL_PP((zstream)), (mode), (options), (opened), (context)) : NULL
554:
555: /* pushes an error message onto the stack for a wrapper instance */
556: #ifdef ZTS
557: PHPAPI void php_stream_wrapper_log_error(php_stream_wrapper *wrapper, int options TSRMLS_DC, const char *fmt, ...) PHP_ATTRIBUTE_FORMAT(printf, 4, 5);
558: #else
559: PHPAPI void php_stream_wrapper_log_error(php_stream_wrapper *wrapper, int options TSRMLS_DC, const char *fmt, ...) PHP_ATTRIBUTE_FORMAT(printf, 3, 4);
560: #endif
561:
562: #define PHP_STREAM_UNCHANGED 0 /* orig stream was seekable anyway */
563: #define PHP_STREAM_RELEASED 1 /* newstream should be used; origstream is no longer valid */
564: #define PHP_STREAM_FAILED 2 /* an error occurred while attempting conversion */
565: #define PHP_STREAM_CRITICAL 3 /* an error occurred; origstream is in an unknown state; you should close origstream */
566: #define PHP_STREAM_NO_PREFERENCE 0
567: #define PHP_STREAM_PREFER_STDIO 1
568: #define PHP_STREAM_FORCE_CONVERSION 2
569: /* DO NOT call this on streams that are referenced by resources! */
570: PHPAPI int _php_stream_make_seekable(php_stream *origstream, php_stream **newstream, int flags STREAMS_DC TSRMLS_DC);
571: #define php_stream_make_seekable(origstream, newstream, flags) _php_stream_make_seekable((origstream), (newstream), (flags) STREAMS_CC TSRMLS_CC)
572:
573: /* Give other modules access to the url_stream_wrappers_hash and stream_filters_hash */
574: PHPAPI HashTable *_php_stream_get_url_stream_wrappers_hash(TSRMLS_D);
575: #define php_stream_get_url_stream_wrappers_hash() _php_stream_get_url_stream_wrappers_hash(TSRMLS_C)
576: PHPAPI HashTable *php_stream_get_url_stream_wrappers_hash_global(void);
577: PHPAPI HashTable *_php_get_stream_filters_hash(TSRMLS_D);
578: #define php_get_stream_filters_hash() _php_get_stream_filters_hash(TSRMLS_C)
579: PHPAPI HashTable *php_get_stream_filters_hash_global(void);
580: extern php_stream_wrapper_ops *php_stream_user_wrapper_ops;
581: END_EXTERN_C()
582: #endif
583:
584: /* Definitions for user streams */
585: #define PHP_STREAM_IS_URL 1
586: /*
587: * Local variables:
588: * tab-width: 4
589: * c-basic-offset: 4
590: * End:
591: * vim600: sw=4 ts=4 fdm=marker
592: * vim<600: sw=4 ts=4
593: */
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