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23 #ifndef VIRTUAL_CWD_H
24 #define VIRTUAL_CWD_H
25
26 #include "TSRM.h"
27 #include "tsrm_config_common.h"
28
29 #include <sys/types.h>
30 #include <sys/stat.h>
31 #include <ctype.h>
32
33 #ifdef HAVE_UTIME_H
34 #include <utime.h>
35 #endif
36
37 #ifdef HAVE_STDARG_H
38 #include <stdarg.h>
39 #endif
40
41 #ifdef ZTS
42 #define VIRTUAL_DIR
43 #endif
44
45 #ifndef ZEND_WIN32
46 #include <unistd.h>
47 #else
48 #include <direct.h>
49 #endif
50
51 #if defined(__osf__) || defined(_AIX)
52 #include <errno.h>
53 #endif
54
55 #ifdef ZEND_WIN32
56 #include "readdir.h"
57 #include <sys/utime.h>
58
59 typedef unsigned short mode_t;
60
61 #define DEFAULT_SLASH '\\'
62 #define DEFAULT_DIR_SEPARATOR ';'
63 #define IS_SLASH(c) ((c) == '/' || (c) == '\\')
64 #define IS_SLASH_P(c) (*(c) == '/' || \
65 (*(c) == '\\' && !IsDBCSLeadByte(*(c-1))))
66
67
68
69 #define COPY_WHEN_ABSOLUTE(path) 2
70 #define IS_UNC_PATH(path, len) \
71 (len >= 2 && IS_SLASH(path[0]) && IS_SLASH(path[1]))
72 #define IS_ABSOLUTE_PATH(path, len) \
73 (len >= 2 && (isalpha(path[0]) && path[1] == ':' || IS_SLASH(path[0]) && IS_SLASH(path[1])))
74
75 #elif defined(NETWARE)
76 #ifdef HAVE_DIRENT_H
77 #include <dirent.h>
78 #endif
79
80 #define DEFAULT_SLASH '/'
81 #define DEFAULT_DIR_SEPARATOR ';'
82 #define IS_SLASH(c) ((c) == '/' || (c) == '\\')
83 #define IS_SLASH_P(c) IS_SLASH(*(c))
84
85 #define IS_ABSOLUTE_PATH(path, len) \
86 ((strchr(path, ':') != NULL) || ((len >= 1) && ((path[0] == '/') || (path[0] == '\\'))))
87
88 #else
89 #ifdef HAVE_DIRENT_H
90 #include <dirent.h>
91 #endif
92
93 #define DEFAULT_SLASH '/'
94
95 #ifdef __riscos__
96 #define DEFAULT_DIR_SEPARATOR ';'
97 #else
98 #define DEFAULT_DIR_SEPARATOR ':'
99 #endif
100
101 #define IS_SLASH(c) ((c) == '/')
102 #define IS_SLASH_P(c) (*(c) == '/')
103
104 #endif
105
106
107 #ifndef COPY_WHEN_ABSOLUTE
108 #define COPY_WHEN_ABSOLUTE(path) 0
109 #endif
110
111 #ifndef IS_ABSOLUTE_PATH
112 #define IS_ABSOLUTE_PATH(path, len) \
113 (IS_SLASH(path[0]))
114 #endif
115
116 #ifdef TSRM_EXPORTS
117 #define CWD_EXPORTS
118 #endif
119
120 #ifdef ZEND_WIN32
121 # ifdef CWD_EXPORTS
122 # define CWD_API __declspec(dllexport)
123 # else
124 # define CWD_API __declspec(dllimport)
125 # endif
126 #elif defined(__GNUC__) && __GNUC__ >= 4
127 # define CWD_API __attribute__ ((visibility("default")))
128 #else
129 # define CWD_API
130 #endif
131
132 #ifdef ZEND_WIN32
133 CWD_API int php_sys_stat_ex(const char *path, zend_stat_t *buf, int lstat);
134 # define php_sys_stat(path, buf) php_sys_stat_ex(path, buf, 0)
135 # define php_sys_lstat(path, buf) php_sys_stat_ex(path, buf, 1)
136 CWD_API int php_sys_readlink(const char *link, char *target, size_t target_len);
137 #else
138 # define php_sys_stat stat
139 # define php_sys_lstat lstat
140 # ifdef HAVE_SYMLINK
141 # define php_sys_readlink(link, target, target_len) readlink(link, target, target_len)
142 # endif
143 #endif
144
145 typedef struct _cwd_state {
146 char *cwd;
147 int cwd_length;
148 } cwd_state;
149
150 typedef int (*verify_path_func)(const cwd_state *);
151
152 CWD_API void virtual_cwd_startup(void);
153 CWD_API void virtual_cwd_shutdown(void);
154 CWD_API int virtual_cwd_activate(void);
155 CWD_API int virtual_cwd_deactivate(void);
156 CWD_API char *virtual_getcwd_ex(size_t *length);
157 CWD_API char *virtual_getcwd(char *buf, size_t size);
158 CWD_API int virtual_chdir(const char *path);
159 CWD_API int virtual_chdir_file(const char *path, int (*p_chdir)(const char *path));
160 CWD_API int virtual_filepath(const char *path, char **filepath);
161 CWD_API int virtual_filepath_ex(const char *path, char **filepath, verify_path_func verify_path);
162 CWD_API char *virtual_realpath(const char *path, char *real_path);
163 CWD_API FILE *virtual_fopen(const char *path, const char *mode);
164 CWD_API int virtual_open(const char *path, int flags, ...);
165 CWD_API int virtual_creat(const char *path, mode_t mode);
166 CWD_API int virtual_rename(const char *oldname, const char *newname);
167 CWD_API int virtual_stat(const char *path, zend_stat_t *buf);
168 CWD_API int virtual_lstat(const char *path, zend_stat_t *buf);
169 CWD_API int virtual_unlink(const char *path);
170 CWD_API int virtual_mkdir(const char *pathname, mode_t mode);
171 CWD_API int virtual_rmdir(const char *pathname);
172 CWD_API DIR *virtual_opendir(const char *pathname);
173 CWD_API FILE *virtual_popen(const char *command, const char *type);
174 CWD_API int virtual_access(const char *pathname, int mode);
175 #if defined(ZEND_WIN32)
176
177 #ifndef W_OK
178 #define W_OK 0x02
179 #endif
180 #ifndef R_OK
181 #define R_OK 0x04
182 #endif
183 #ifndef X_OK
184 #define X_OK 0x01
185 #endif
186 #ifndef F_OK
187 #define F_OK 0x00
188 #endif
189 #endif
190
191 #if HAVE_UTIME
192 CWD_API int virtual_utime(const char *filename, struct utimbuf *buf);
193 #endif
194 CWD_API int virtual_chmod(const char *filename, mode_t mode);
195 #if !defined(ZEND_WIN32) && !defined(NETWARE)
196 CWD_API int virtual_chown(const char *filename, uid_t owner, gid_t group, int link);
197 #endif
198
199
200
201
202 #define CWD_EXPAND 0
203 #define CWD_FILEPATH 1
204 #define CWD_REALPATH 2
205
206 CWD_API int virtual_file_ex(cwd_state *state, const char *path, verify_path_func verify_path, int use_realpath);
207
208 CWD_API char *tsrm_realpath(const char *path, char *real_path);
209
210 #define REALPATH_CACHE_TTL (2*60)
211 #define REALPATH_CACHE_SIZE 0
212
213 typedef struct _realpath_cache_bucket {
214 zend_ulong key;
215 char *path;
216 char *realpath;
217 struct _realpath_cache_bucket *next;
218 time_t expires;
219 int path_len;
220 int realpath_len;
221 int is_dir;
222 #ifdef ZEND_WIN32
223 unsigned char is_rvalid;
224 unsigned char is_readable;
225 unsigned char is_wvalid;
226 unsigned char is_writable;
227 #endif
228 } realpath_cache_bucket;
229
230 typedef struct _virtual_cwd_globals {
231 cwd_state cwd;
232 zend_long realpath_cache_size;
233 zend_long realpath_cache_size_limit;
234 zend_long realpath_cache_ttl;
235 realpath_cache_bucket *realpath_cache[1024];
236 } virtual_cwd_globals;
237
238 #ifdef ZTS
239 extern ts_rsrc_id cwd_globals_id;
240 # define CWDG(v) ZEND_TSRMG(cwd_globals_id, virtual_cwd_globals *, v)
241 #else
242 extern virtual_cwd_globals cwd_globals;
243 # define CWDG(v) (cwd_globals.v)
244 #endif
245
246 CWD_API void realpath_cache_clean(void);
247 CWD_API void realpath_cache_del(const char *path, int path_len);
248 CWD_API realpath_cache_bucket* realpath_cache_lookup(const char *path, int path_len, time_t t);
249 CWD_API zend_long realpath_cache_size(void);
250 CWD_API zend_long realpath_cache_max_buckets(void);
251 CWD_API realpath_cache_bucket** realpath_cache_get_buckets(void);
252
253
254
255
256
257
258 #ifdef VIRTUAL_DIR
259
260 #define VCWD_GETCWD(buff, size) virtual_getcwd(buff, size)
261 #define VCWD_FOPEN(path, mode) virtual_fopen(path, mode)
262
263 #define VCWD_OPEN(path, flags) virtual_open(path, flags)
264 #define VCWD_OPEN_MODE(path, flags, mode) virtual_open(path, flags, mode)
265 #define VCWD_CREAT(path, mode) virtual_creat(path, mode)
266 #define VCWD_CHDIR(path) virtual_chdir(path)
267 #define VCWD_CHDIR_FILE(path) virtual_chdir_file(path, virtual_chdir)
268 #define VCWD_GETWD(buf)
269 #define VCWD_REALPATH(path, real_path) virtual_realpath(path, real_path)
270 #define VCWD_RENAME(oldname, newname) virtual_rename(oldname, newname)
271 #define VCWD_STAT(path, buff) virtual_stat(path, buff)
272 # define VCWD_LSTAT(path, buff) virtual_lstat(path, buff)
273 #define VCWD_UNLINK(path) virtual_unlink(path)
274 #define VCWD_MKDIR(pathname, mode) virtual_mkdir(pathname, mode)
275 #define VCWD_RMDIR(pathname) virtual_rmdir(pathname)
276 #define VCWD_OPENDIR(pathname) virtual_opendir(pathname)
277 #define VCWD_POPEN(command, type) virtual_popen(command, type)
278 #define VCWD_ACCESS(pathname, mode) virtual_access(pathname, mode)
279 #if HAVE_UTIME
280 #define VCWD_UTIME(path, time) virtual_utime(path, time)
281 #endif
282 #define VCWD_CHMOD(path, mode) virtual_chmod(path, mode)
283 #if !defined(ZEND_WIN32) && !defined(NETWARE)
284 #define VCWD_CHOWN(path, owner, group) virtual_chown(path, owner, group, 0)
285 #if HAVE_LCHOWN
286 #define VCWD_LCHOWN(path, owner, group) virtual_chown(path, owner, group, 1)
287 #endif
288 #endif
289
290 #else
291
292 #define VCWD_GETCWD(buff, size) getcwd(buff, size)
293 #define VCWD_FOPEN(path, mode) fopen(path, mode)
294 #define VCWD_OPEN(path, flags) open(path, flags)
295 #define VCWD_OPEN_MODE(path, flags, mode) open(path, flags, mode)
296 #define VCWD_CREAT(path, mode) creat(path, mode)
297
298
299 #if defined(ZEND_WIN32)
300 # define VCWD_RENAME(oldname, newname) (MoveFileEx(oldname, newname, MOVEFILE_REPLACE_EXISTING|MOVEFILE_COPY_ALLOWED) == 0 ? -1 : 0)
301 #else
302 # define VCWD_RENAME(oldname, newname) rename(oldname, newname)
303 #endif
304 #define VCWD_CHDIR(path) chdir(path)
305 #define VCWD_CHDIR_FILE(path) virtual_chdir_file(path, chdir)
306 #define VCWD_GETWD(buf) getwd(buf)
307 #define VCWD_STAT(path, buff) php_sys_stat(path, buff)
308 #define VCWD_LSTAT(path, buff) lstat(path, buff)
309 #define VCWD_UNLINK(path) unlink(path)
310 #define VCWD_MKDIR(pathname, mode) mkdir(pathname, mode)
311 #define VCWD_RMDIR(pathname) rmdir(pathname)
312 #define VCWD_OPENDIR(pathname) opendir(pathname)
313 #define VCWD_POPEN(command, type) popen(command, type)
314 #if defined(ZEND_WIN32)
315 #define VCWD_ACCESS(pathname, mode) tsrm_win32_access(pathname, mode)
316 #else
317 #define VCWD_ACCESS(pathname, mode) access(pathname, mode)
318 #endif
319
320 #define VCWD_REALPATH(path, real_path) tsrm_realpath(path, real_path)
321
322 #if HAVE_UTIME
323 # ifdef ZEND_WIN32
324 # define VCWD_UTIME(path, time) win32_utime(path, time)
325 # else
326 # define VCWD_UTIME(path, time) utime(path, time)
327 # endif
328 #endif
329
330 #define VCWD_CHMOD(path, mode) chmod(path, mode)
331 #if !defined(ZEND_WIN32) && !defined(NETWARE)
332 #define VCWD_CHOWN(path, owner, group) chown(path, owner, group)
333 #if HAVE_LCHOWN
334 #define VCWD_LCHOWN(path, owner, group) lchown(path, owner, group)
335 #endif
336 #endif
337
338 #endif
339
340
341 #ifndef _S_IFDIR
342 #define _S_IFDIR S_IFDIR
343 #endif
344
345 #ifndef _S_IFREG
346 #define _S_IFREG S_IFREG
347 #endif
348
349 #ifndef S_IFLNK
350 # define S_IFLNK 0120000
351 #endif
352
353 #ifndef S_ISDIR
354 #define S_ISDIR(mode) (((mode)&S_IFMT) == S_IFDIR)
355 #endif
356
357 #ifndef S_ISREG
358 #define S_ISREG(mode) (((mode)&S_IFMT) == S_IFREG)
359 #endif
360
361 #ifndef S_ISLNK
362 #define S_ISLNK(mode) (((mode)&S_IFMT) == S_IFLNK)
363 #endif
364
365 #ifndef S_IXROOT
366 #define S_IXROOT ( S_IXUSR | S_IXGRP | S_IXOTH )
367 #endif
368
369 #endif