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/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2010 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Andi Gutmans <andi@zend.com> |
| Sascha Schumann <sascha@schumann.cx> |
+----------------------------------------------------------------------+
*/
/* $Id: tsrm_virtual_cwd.h 293036 2010-01-03 09:23:27Z sebastian $ */
#ifndef VIRTUAL_CWD_H
#define VIRTUAL_CWD_H
#include "TSRM.h"
#include "tsrm_config_common.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <ctype.h>
#ifdef HAVE_UTIME_H
#include <utime.h>
#endif
#ifdef HAVE_STDARG_H
#include <stdarg.h>
#endif
#ifdef ZTS
#define VIRTUAL_DIR
#endif
#ifndef TSRM_WIN32
#include <unistd.h>
#else
#include <direct.h>
#endif
#if defined(__osf__) || defined(_AIX)
#include <errno.h>
#endif
#ifdef TSRM_WIN32
#include "readdir.h"
#include <sys/utime.h>
/* mode_t isn't defined on Windows */
typedef unsigned short mode_t;
#define DEFAULT_SLASH '\\'
#define DEFAULT_DIR_SEPARATOR ';'
#define IS_SLASH(c) ((c) == '/' || (c) == '\\')
#define IS_SLASH_P(c) (*(c) == '/' || \
(*(c) == '\\' && !IsDBCSLeadByte(*(c-1))))
/* COPY_WHEN_ABSOLUTE is 2 under Win32 because by chance both regular absolute paths
in the file system and UNC paths need copying of two characters */
#define COPY_WHEN_ABSOLUTE(path) 2
#define IS_UNC_PATH(path, len) \
(len >= 2 && IS_SLASH(path[0]) && IS_SLASH(path[1]))
#define IS_ABSOLUTE_PATH(path, len) \
(len >= 2 && ((isalpha(path[0]) && path[1] == ':') || IS_UNC_PATH(path, len)))
#elif defined(NETWARE)
#ifdef HAVE_DIRENT_H
#include <dirent.h>
#endif
#define DEFAULT_SLASH '/'
#define DEFAULT_DIR_SEPARATOR ';'
#define IS_SLASH(c) ((c) == '/' || (c) == '\\')
#define IS_SLASH_P(c) IS_SLASH(*(c))
/* Colon indicates volume name, either first character should be forward slash or backward slash */
#define IS_ABSOLUTE_PATH(path, len) \
((strchr(path, ':') != NULL) || ((len >= 1) && ((path[0] == '/') || (path[0] == '\\'))))
#else
#ifdef HAVE_DIRENT_H
#include <dirent.h>
#endif
#define DEFAULT_SLASH '/'
#ifdef __riscos__
#define DEFAULT_DIR_SEPARATOR ';'
#else
#define DEFAULT_DIR_SEPARATOR ':'
#endif
#define IS_SLASH(c) ((c) == '/')
#define IS_SLASH_P(c) (*(c) == '/')
#endif
#ifndef COPY_WHEN_ABSOLUTE
#define COPY_WHEN_ABSOLUTE(path) 0
#endif
#ifndef IS_ABSOLUTE_PATH
#define IS_ABSOLUTE_PATH(path, len) \
(IS_SLASH(path[0]))
#endif
#ifdef TSRM_EXPORTS
#define CWD_EXPORTS
#endif
#ifdef TSRM_WIN32
# ifdef CWD_EXPORTS
# define CWD_API __declspec(dllexport)
# else
# define CWD_API __declspec(dllimport)
# endif
#else
#define CWD_API
#endif
#ifdef TSRM_WIN32
CWD_API int php_sys_stat(const char *path, struct stat *buf);
#else
# define php_sys_stat stat
#endif
typedef struct _cwd_state {
char *cwd;
int cwd_length;
} cwd_state;
typedef int (*verify_path_func)(const cwd_state *);
CWD_API void virtual_cwd_startup(void);
CWD_API void virtual_cwd_shutdown(void);
CWD_API char *virtual_getcwd_ex(size_t *length TSRMLS_DC);
CWD_API char *virtual_getcwd(char *buf, size_t size TSRMLS_DC);
CWD_API int virtual_chdir(const char *path TSRMLS_DC);
CWD_API int virtual_chdir_file(const char *path, int (*p_chdir)(const char *path TSRMLS_DC) TSRMLS_DC);
CWD_API int virtual_filepath(const char *path, char **filepath TSRMLS_DC);
CWD_API int virtual_filepath_ex(const char *path, char **filepath, verify_path_func verify_path TSRMLS_DC);
CWD_API char *virtual_realpath(const char *path, char *real_path TSRMLS_DC);
CWD_API FILE *virtual_fopen(const char *path, const char *mode TSRMLS_DC);
CWD_API int virtual_open(const char *path TSRMLS_DC, int flags, ...);
CWD_API int virtual_creat(const char *path, mode_t mode TSRMLS_DC);
CWD_API int virtual_rename(char *oldname, char *newname TSRMLS_DC);
CWD_API int virtual_stat(const char *path, struct stat *buf TSRMLS_DC);
#if !defined(TSRM_WIN32)
CWD_API int virtual_lstat(const char *path, struct stat *buf TSRMLS_DC);
#endif
CWD_API int virtual_unlink(const char *path TSRMLS_DC);
CWD_API int virtual_mkdir(const char *pathname, mode_t mode TSRMLS_DC);
CWD_API int virtual_rmdir(const char *pathname TSRMLS_DC);
CWD_API DIR *virtual_opendir(const char *pathname TSRMLS_DC);
CWD_API FILE *virtual_popen(const char *command, const char *type TSRMLS_DC);
CWD_API int virtual_access(const char *pathname, int mode TSRMLS_DC);
#if defined(TSRM_WIN32)
/* these are not defined in win32 headers */
#ifndef W_OK
#define W_OK 0x02
#endif
#ifndef R_OK
#define R_OK 0x04
#endif
#ifndef X_OK
#define X_OK 0x01
#endif
#ifndef F_OK
#define F_OK 0x00
#endif
#endif
#if HAVE_UTIME
CWD_API int virtual_utime(const char *filename, struct utimbuf *buf TSRMLS_DC);
#endif
CWD_API int virtual_chmod(const char *filename, mode_t mode TSRMLS_DC);
#if !defined(TSRM_WIN32) && !defined(NETWARE)
CWD_API int virtual_chown(const char *filename, uid_t owner, gid_t group, int link TSRMLS_DC);
#endif
/* One of the following constants must be used as the last argument
in virtual_file_ex() call. */
#define CWD_EXPAND 0 /* expand "." and ".." but dont resolve symlinks */
#define CWD_FILEPATH 1 /* resolve symlinks if file is exist otherwise expand */
#define CWD_REALPATH 2 /* call realpath(), resolve symlinks. File must exist */
CWD_API int virtual_file_ex(cwd_state *state, const char *path, verify_path_func verify_path, int use_realpath);
CWD_API char *tsrm_realpath(const char *path, char *real_path TSRMLS_DC);
#define REALPATH_CACHE_TTL (2*60) /* 2 minutes */
#define REALPATH_CACHE_SIZE 0 /* disabled while php.ini isn't loaded */
typedef struct _realpath_cache_bucket {
unsigned long key;
char *path;
int path_len;
char *realpath;
int realpath_len;
time_t expires;
struct _realpath_cache_bucket *next;
} realpath_cache_bucket;
typedef struct _virtual_cwd_globals {
cwd_state cwd;
long realpath_cache_size;
long realpath_cache_size_limit;
long realpath_cache_ttl;
realpath_cache_bucket *realpath_cache[1024];
} virtual_cwd_globals;
#ifdef ZTS
extern ts_rsrc_id cwd_globals_id;
# define CWDG(v) TSRMG(cwd_globals_id, virtual_cwd_globals *, v)
#else
extern virtual_cwd_globals cwd_globals;
# define CWDG(v) (cwd_globals.v)
#endif
CWD_API void realpath_cache_clean(TSRMLS_D);
CWD_API void realpath_cache_del(const char *path, int path_len TSRMLS_DC);
/* The actual macros to be used in programs using TSRM
* If the program defines VIRTUAL_DIR it will use the
* virtual_* functions
*/
#ifdef VIRTUAL_DIR
#define VCWD_GETCWD(buff, size) virtual_getcwd(buff, size TSRMLS_CC)
#define VCWD_FOPEN(path, mode) virtual_fopen(path, mode TSRMLS_CC)
/* Because open() has two modes, we have to macros to replace it */
#define VCWD_OPEN(path, flags) virtual_open(path TSRMLS_CC, flags)
#define VCWD_OPEN_MODE(path, flags, mode) virtual_open(path TSRMLS_CC, flags, mode)
#define VCWD_CREAT(path, mode) virtual_creat(path, mode TSRMLS_CC)
#define VCWD_CHDIR(path) virtual_chdir(path TSRMLS_CC)
#define VCWD_CHDIR_FILE(path) virtual_chdir_file(path, virtual_chdir TSRMLS_CC)
#define VCWD_GETWD(buf)
#define VCWD_REALPATH(path, real_path) virtual_realpath(path, real_path TSRMLS_CC)
#define VCWD_RENAME(oldname, newname) virtual_rename(oldname, newname TSRMLS_CC)
#define VCWD_STAT(path, buff) virtual_stat(path, buff TSRMLS_CC)
#if !defined(TSRM_WIN32)
#define VCWD_LSTAT(path, buff) virtual_lstat(path, buff TSRMLS_CC)
#endif
#define VCWD_UNLINK(path) virtual_unlink(path TSRMLS_CC)
#define VCWD_MKDIR(pathname, mode) virtual_mkdir(pathname, mode TSRMLS_CC)
#define VCWD_RMDIR(pathname) virtual_rmdir(pathname TSRMLS_CC)
#define VCWD_OPENDIR(pathname) virtual_opendir(pathname TSRMLS_CC)
#define VCWD_POPEN(command, type) virtual_popen(command, type TSRMLS_CC)
#define VCWD_ACCESS(pathname, mode) virtual_access(pathname, mode TSRMLS_CC)
#if HAVE_UTIME
#define VCWD_UTIME(path, time) virtual_utime(path, time TSRMLS_CC)
#endif
#define VCWD_CHMOD(path, mode) virtual_chmod(path, mode TSRMLS_CC)
#if !defined(TSRM_WIN32) && !defined(NETWARE)
#define VCWD_CHOWN(path, owner, group) virtual_chown(path, owner, group, 0 TSRMLS_CC)
#if HAVE_LCHOWN
#define VCWD_LCHOWN(path, owner, group) virtual_chown(path, owner, group, 1 TSRMLS_CC)
#endif
#endif
#else
#define VCWD_GETCWD(buff, size) getcwd(buff, size)
#define VCWD_FOPEN(path, mode) fopen(path, mode)
#define VCWD_OPEN(path, flags) open(path, flags)
#define VCWD_OPEN_MODE(path, flags, mode) open(path, flags, mode)
#define VCWD_CREAT(path, mode) creat(path, mode)
#define VCWD_RENAME(oldname, newname) rename(oldname, newname)
#define VCWD_CHDIR(path) chdir(path)
#define VCWD_CHDIR_FILE(path) virtual_chdir_file(path, chdir)
#define VCWD_GETWD(buf) getwd(buf)
#define VCWD_STAT(path, buff) php_sys_stat(path, buff)
#define VCWD_LSTAT(path, buff) lstat(path, buff)
#define VCWD_UNLINK(path) unlink(path)
#define VCWD_MKDIR(pathname, mode) mkdir(pathname, mode)
#define VCWD_RMDIR(pathname) rmdir(pathname)
#define VCWD_OPENDIR(pathname) opendir(pathname)
#define VCWD_POPEN(command, type) popen(command, type)
#if defined(TSRM_WIN32)
#define VCWD_ACCESS(pathname, mode) tsrm_win32_access(pathname, mode)
#else
#define VCWD_ACCESS(pathname, mode) access(pathname, mode)
#endif
#define VCWD_REALPATH(path, real_path) tsrm_realpath(path, real_path TSRMLS_CC)
#if HAVE_UTIME
#define VCWD_UTIME(path, time) utime(path, time)
#endif
#define VCWD_CHMOD(path, mode) chmod(path, mode)
#if !defined(TSRM_WIN32) && !defined(NETWARE)
#define VCWD_CHOWN(path, owner, group) chown(path, owner, group)
#if HAVE_LCHOWN
#define VCWD_LCHOWN(path, owner, group) lchown(path, owner, group)
#endif
#endif
#endif
#endif /* VIRTUAL_CWD_H */
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