Annotation of embedaddon/php/TSRM/tsrm_virtual_cwd.h, revision 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: | Authors: Andi Gutmans <andi@zend.com> |
! 16: | Sascha Schumann <sascha@schumann.cx> |
! 17: | Pierre Joye <pierre@php.net> |
! 18: +----------------------------------------------------------------------+
! 19: */
! 20:
! 21: /* $Id: tsrm_virtual_cwd.h 321634 2012-01-01 13:15:04Z felipe $ */
! 22:
! 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 TSRM_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 TSRM_WIN32
! 56: #include "readdir.h"
! 57: #include <sys/utime.h>
! 58: /* mode_t isn't defined on Windows */
! 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: /* COPY_WHEN_ABSOLUTE is 2 under Win32 because by chance both regular absolute paths
! 68: in the file system and UNC paths need copying of two characters */
! 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_UNC_PATH(path, len)))
! 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: /* Colon indicates volume name, either first character should be forward slash or backward slash */
! 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 TSRM_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 TSRM_WIN32
! 133: CWD_API int php_sys_stat_ex(const char *path, struct stat *buf, int lstat);
! 134: CWD_API int php_sys_stat(const char *path, struct stat *buf);
! 135: CWD_API int php_sys_lstat(const char *path, struct stat *buf);
! 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 char *virtual_getcwd_ex(size_t *length TSRMLS_DC);
! 155: CWD_API char *virtual_getcwd(char *buf, size_t size TSRMLS_DC);
! 156: CWD_API int virtual_chdir(const char *path TSRMLS_DC);
! 157: CWD_API int virtual_chdir_file(const char *path, int (*p_chdir)(const char *path TSRMLS_DC) TSRMLS_DC);
! 158: CWD_API int virtual_filepath(const char *path, char **filepath TSRMLS_DC);
! 159: CWD_API int virtual_filepath_ex(const char *path, char **filepath, verify_path_func verify_path TSRMLS_DC);
! 160: CWD_API char *virtual_realpath(const char *path, char *real_path TSRMLS_DC);
! 161: CWD_API FILE *virtual_fopen(const char *path, const char *mode TSRMLS_DC);
! 162: CWD_API int virtual_open(const char *path TSRMLS_DC, int flags, ...);
! 163: CWD_API int virtual_creat(const char *path, mode_t mode TSRMLS_DC);
! 164: CWD_API int virtual_rename(char *oldname, char *newname TSRMLS_DC);
! 165: CWD_API int virtual_stat(const char *path, struct stat *buf TSRMLS_DC);
! 166: CWD_API int virtual_lstat(const char *path, struct stat *buf TSRMLS_DC);
! 167: CWD_API int virtual_unlink(const char *path TSRMLS_DC);
! 168: CWD_API int virtual_mkdir(const char *pathname, mode_t mode TSRMLS_DC);
! 169: CWD_API int virtual_rmdir(const char *pathname TSRMLS_DC);
! 170: CWD_API DIR *virtual_opendir(const char *pathname TSRMLS_DC);
! 171: CWD_API FILE *virtual_popen(const char *command, const char *type TSRMLS_DC);
! 172: CWD_API int virtual_access(const char *pathname, int mode TSRMLS_DC);
! 173: #if defined(TSRM_WIN32)
! 174: /* these are not defined in win32 headers */
! 175: #ifndef W_OK
! 176: #define W_OK 0x02
! 177: #endif
! 178: #ifndef R_OK
! 179: #define R_OK 0x04
! 180: #endif
! 181: #ifndef X_OK
! 182: #define X_OK 0x01
! 183: #endif
! 184: #ifndef F_OK
! 185: #define F_OK 0x00
! 186: #endif
! 187: #endif
! 188:
! 189: #if HAVE_UTIME
! 190: CWD_API int virtual_utime(const char *filename, struct utimbuf *buf TSRMLS_DC);
! 191: #endif
! 192: CWD_API int virtual_chmod(const char *filename, mode_t mode TSRMLS_DC);
! 193: #if !defined(TSRM_WIN32) && !defined(NETWARE)
! 194: CWD_API int virtual_chown(const char *filename, uid_t owner, gid_t group, int link TSRMLS_DC);
! 195: #endif
! 196:
! 197: /* One of the following constants must be used as the last argument
! 198: in virtual_file_ex() call. */
! 199:
! 200: #define CWD_EXPAND 0 /* expand "." and ".." but dont resolve symlinks */
! 201: #define CWD_FILEPATH 1 /* resolve symlinks if file is exist otherwise expand */
! 202: #define CWD_REALPATH 2 /* call realpath(), resolve symlinks. File must exist */
! 203:
! 204: CWD_API int virtual_file_ex(cwd_state *state, const char *path, verify_path_func verify_path, int use_realpath);
! 205:
! 206: CWD_API char *tsrm_realpath(const char *path, char *real_path TSRMLS_DC);
! 207:
! 208: #define REALPATH_CACHE_TTL (2*60) /* 2 minutes */
! 209: #define REALPATH_CACHE_SIZE 0 /* disabled while php.ini isn't loaded */
! 210:
! 211: typedef struct _realpath_cache_bucket {
! 212: unsigned long key;
! 213: char *path;
! 214: int path_len;
! 215: char *realpath;
! 216: int realpath_len;
! 217: int is_dir;
! 218: time_t expires;
! 219: #ifdef PHP_WIN32
! 220: unsigned char is_rvalid;
! 221: unsigned char is_readable;
! 222: unsigned char is_wvalid;
! 223: unsigned char is_writable;
! 224: #endif
! 225: struct _realpath_cache_bucket *next;
! 226: } realpath_cache_bucket;
! 227:
! 228: typedef struct _virtual_cwd_globals {
! 229: cwd_state cwd;
! 230: long realpath_cache_size;
! 231: long realpath_cache_size_limit;
! 232: long realpath_cache_ttl;
! 233: realpath_cache_bucket *realpath_cache[1024];
! 234: } virtual_cwd_globals;
! 235:
! 236: #ifdef ZTS
! 237: extern ts_rsrc_id cwd_globals_id;
! 238: # define CWDG(v) TSRMG(cwd_globals_id, virtual_cwd_globals *, v)
! 239: #else
! 240: extern virtual_cwd_globals cwd_globals;
! 241: # define CWDG(v) (cwd_globals.v)
! 242: #endif
! 243:
! 244: CWD_API void realpath_cache_clean(TSRMLS_D);
! 245: CWD_API void realpath_cache_del(const char *path, int path_len TSRMLS_DC);
! 246: CWD_API realpath_cache_bucket* realpath_cache_lookup(const char *path, int path_len, time_t t TSRMLS_DC);
! 247: CWD_API int realpath_cache_size(TSRMLS_D);
! 248: CWD_API int realpath_cache_max_buckets(TSRMLS_D);
! 249: CWD_API realpath_cache_bucket** realpath_cache_get_buckets(TSRMLS_D);
! 250:
! 251: /* The actual macros to be used in programs using TSRM
! 252: * If the program defines VIRTUAL_DIR it will use the
! 253: * virtual_* functions
! 254: */
! 255:
! 256: #ifdef VIRTUAL_DIR
! 257:
! 258: #define VCWD_GETCWD(buff, size) virtual_getcwd(buff, size TSRMLS_CC)
! 259: #define VCWD_FOPEN(path, mode) virtual_fopen(path, mode TSRMLS_CC)
! 260: /* Because open() has two modes, we have to macros to replace it */
! 261: #define VCWD_OPEN(path, flags) virtual_open(path TSRMLS_CC, flags)
! 262: #define VCWD_OPEN_MODE(path, flags, mode) virtual_open(path TSRMLS_CC, flags, mode)
! 263: #define VCWD_CREAT(path, mode) virtual_creat(path, mode TSRMLS_CC)
! 264: #define VCWD_CHDIR(path) virtual_chdir(path TSRMLS_CC)
! 265: #define VCWD_CHDIR_FILE(path) virtual_chdir_file(path, virtual_chdir TSRMLS_CC)
! 266: #define VCWD_GETWD(buf)
! 267: #define VCWD_REALPATH(path, real_path) virtual_realpath(path, real_path TSRMLS_CC)
! 268: #define VCWD_RENAME(oldname, newname) virtual_rename(oldname, newname TSRMLS_CC)
! 269: #define VCWD_STAT(path, buff) virtual_stat(path, buff TSRMLS_CC)
! 270: #define VCWD_LSTAT(path, buff) virtual_lstat(path, buff TSRMLS_CC)
! 271: #define VCWD_UNLINK(path) virtual_unlink(path TSRMLS_CC)
! 272: #define VCWD_MKDIR(pathname, mode) virtual_mkdir(pathname, mode TSRMLS_CC)
! 273: #define VCWD_RMDIR(pathname) virtual_rmdir(pathname TSRMLS_CC)
! 274: #define VCWD_OPENDIR(pathname) virtual_opendir(pathname TSRMLS_CC)
! 275: #define VCWD_POPEN(command, type) virtual_popen(command, type TSRMLS_CC)
! 276: #define VCWD_ACCESS(pathname, mode) virtual_access(pathname, mode TSRMLS_CC)
! 277: #if HAVE_UTIME
! 278: #define VCWD_UTIME(path, time) virtual_utime(path, time TSRMLS_CC)
! 279: #endif
! 280: #define VCWD_CHMOD(path, mode) virtual_chmod(path, mode TSRMLS_CC)
! 281: #if !defined(TSRM_WIN32) && !defined(NETWARE)
! 282: #define VCWD_CHOWN(path, owner, group) virtual_chown(path, owner, group, 0 TSRMLS_CC)
! 283: #if HAVE_LCHOWN
! 284: #define VCWD_LCHOWN(path, owner, group) virtual_chown(path, owner, group, 1 TSRMLS_CC)
! 285: #endif
! 286: #endif
! 287:
! 288: #else
! 289:
! 290: #define VCWD_GETCWD(buff, size) getcwd(buff, size)
! 291: #define VCWD_FOPEN(path, mode) fopen(path, mode)
! 292: #define VCWD_OPEN(path, flags) open(path, flags)
! 293: #define VCWD_OPEN_MODE(path, flags, mode) open(path, flags, mode)
! 294: #define VCWD_CREAT(path, mode) creat(path, mode)
! 295: /* rename on windows will fail if newname already exists.
! 296: MoveFileEx has to be used */
! 297: #if defined(TSRM_WIN32)
! 298: # define VCWD_RENAME(oldname, newname) (MoveFileEx(oldname, newname, MOVEFILE_REPLACE_EXISTING|MOVEFILE_COPY_ALLOWED) == 0 ? -1 : 0)
! 299: #else
! 300: # define VCWD_RENAME(oldname, newname) rename(oldname, newname)
! 301: #endif
! 302: #define VCWD_CHDIR(path) chdir(path)
! 303: #define VCWD_CHDIR_FILE(path) virtual_chdir_file(path, chdir)
! 304: #define VCWD_GETWD(buf) getwd(buf)
! 305: #define VCWD_STAT(path, buff) php_sys_stat(path, buff)
! 306: #define VCWD_LSTAT(path, buff) lstat(path, buff)
! 307: #define VCWD_UNLINK(path) unlink(path)
! 308: #define VCWD_MKDIR(pathname, mode) mkdir(pathname, mode)
! 309: #define VCWD_RMDIR(pathname) rmdir(pathname)
! 310: #define VCWD_OPENDIR(pathname) opendir(pathname)
! 311: #define VCWD_POPEN(command, type) popen(command, type)
! 312: #if defined(TSRM_WIN32)
! 313: #define VCWD_ACCESS(pathname, mode) tsrm_win32_access(pathname, mode)
! 314: #else
! 315: #define VCWD_ACCESS(pathname, mode) access(pathname, mode)
! 316: #endif
! 317:
! 318: #define VCWD_REALPATH(path, real_path) tsrm_realpath(path, real_path TSRMLS_CC)
! 319:
! 320: #if HAVE_UTIME
! 321: # ifdef TSRM_WIN32
! 322: # define VCWD_UTIME(path, time) win32_utime(path, time)
! 323: # else
! 324: # define VCWD_UTIME(path, time) utime(path, time)
! 325: # endif
! 326: #endif
! 327:
! 328: #define VCWD_CHMOD(path, mode) chmod(path, mode)
! 329: #if !defined(TSRM_WIN32) && !defined(NETWARE)
! 330: #define VCWD_CHOWN(path, owner, group) chown(path, owner, group)
! 331: #if HAVE_LCHOWN
! 332: #define VCWD_LCHOWN(path, owner, group) lchown(path, owner, group)
! 333: #endif
! 334: #endif
! 335:
! 336: #endif
! 337:
! 338: #endif /* VIRTUAL_CWD_H */
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