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/*
+----------------------------------------------------------------------+
| Copyright (c) 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: |
| https://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@php.net> |
| Sascha Schumann <sascha@schumann.cx> |
| Pierre Joye <pierre@php.net> |
+----------------------------------------------------------------------+
*/
#ifndef VIRTUAL_CWD_H
#define VIRTUAL_CWD_H
#include "TSRM.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <ctype.h>
#ifdef HAVE_UTIME_H
#include <utime.h>
#endif
#include <stdarg.h>
#include <limits.h>
#if HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
#ifndef MAXPATHLEN
# if _WIN32
# include "win32/ioutil.h"
# define MAXPATHLEN PHP_WIN32_IOUTIL_MAXPATHLEN
# elif PATH_MAX
# define MAXPATHLEN PATH_MAX
# elif defined(MAX_PATH)
# define MAXPATHLEN MAX_PATH
# else
# define MAXPATHLEN 256
# endif
#endif
#ifdef ZTS
#define VIRTUAL_DIR
#endif
#ifndef ZEND_WIN32
#include <unistd.h>
#else
#include <direct.h>
#endif
#if defined(__osf__) || defined(_AIX)
#include <errno.h>
#endif
#ifdef ZEND_WIN32
#include "win32/readdir.h"
#include <sys/utime.h>
#include "win32/ioutil.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 && (/* is local */isalpha(path[0]) && path[1] == ':' || /* is UNC */IS_SLASH(path[0]) && IS_SLASH(path[1])))
#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 ZEND_WIN32
# ifdef CWD_EXPORTS
# define CWD_API __declspec(dllexport)
# else
# define CWD_API __declspec(dllimport)
# endif
#elif defined(__GNUC__) && __GNUC__ >= 4
# define CWD_API __attribute__ ((visibility("default")))
#else
# define CWD_API
#endif
#ifdef ZEND_WIN32
# define php_sys_stat_ex php_win32_ioutil_stat_ex
# define php_sys_stat php_win32_ioutil_stat
# define php_sys_lstat php_win32_ioutil_lstat
# define php_sys_fstat php_win32_ioutil_fstat
# define php_sys_readlink php_win32_ioutil_readlink
# define php_sys_symlink php_win32_ioutil_symlink
# define php_sys_link php_win32_ioutil_link
#else
# define php_sys_stat stat
# define php_sys_lstat lstat
# define php_sys_fstat fstat
# ifdef HAVE_SYMLINK
# define php_sys_readlink(link, target, target_len) readlink(link, target, target_len)
# define php_sys_symlink symlink
# define php_sys_link link
# endif
#endif
typedef struct _cwd_state {
char *cwd;
size_t 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 int virtual_cwd_activate(void);
CWD_API int virtual_cwd_deactivate(void);
CWD_API char *virtual_getcwd_ex(size_t *length);
CWD_API char *virtual_getcwd(char *buf, size_t size);
CWD_API int virtual_chdir(const char *path);
CWD_API int virtual_chdir_file(const char *path, int (*p_chdir)(const char *path));
CWD_API int virtual_filepath(const char *path, char **filepath);
CWD_API int virtual_filepath_ex(const char *path, char **filepath, verify_path_func verify_path);
CWD_API char *virtual_realpath(const char *path, char *real_path);
CWD_API FILE *virtual_fopen(const char *path, const char *mode);
CWD_API int virtual_open(const char *path, int flags, ...);
CWD_API int virtual_creat(const char *path, mode_t mode);
CWD_API int virtual_rename(const char *oldname, const char *newname);
CWD_API int virtual_stat(const char *path, zend_stat_t *buf);
CWD_API int virtual_lstat(const char *path, zend_stat_t *buf);
CWD_API int virtual_unlink(const char *path);
CWD_API int virtual_mkdir(const char *pathname, mode_t mode);
CWD_API int virtual_rmdir(const char *pathname);
CWD_API DIR *virtual_opendir(const char *pathname);
CWD_API FILE *virtual_popen(const char *command, const char *type);
CWD_API int virtual_access(const char *pathname, int mode);
#if HAVE_UTIME
CWD_API int virtual_utime(const char *filename, struct utimbuf *buf);
#endif
CWD_API int virtual_chmod(const char *filename, mode_t mode);
#if !defined(ZEND_WIN32)
CWD_API int virtual_chown(const char *filename, uid_t owner, gid_t group, int link);
#endif
/* One of the following constants must be used as the last argument
in virtual_file_ex() call. */
// TODO Make this into an enum
#define CWD_EXPAND 0 /* expand "." and ".." but don't 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);
#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 {
zend_ulong key;
char *path;
char *realpath;
struct _realpath_cache_bucket *next;
time_t expires;
uint16_t path_len;
uint16_t realpath_len;
uint8_t is_dir:1;
#ifdef ZEND_WIN32
uint8_t is_rvalid:1;
uint8_t is_readable:1;
uint8_t is_wvalid:1;
uint8_t is_writable:1;
#endif
} realpath_cache_bucket;
typedef struct _virtual_cwd_globals {
cwd_state cwd;
zend_long realpath_cache_size;
zend_long realpath_cache_size_limit;
zend_long realpath_cache_ttl;
realpath_cache_bucket *realpath_cache[1024];
} virtual_cwd_globals;
#ifdef ZTS
extern ts_rsrc_id cwd_globals_id;
extern size_t cwd_globals_offset;
# define CWDG(v) ZEND_TSRMG_FAST(cwd_globals_offset, virtual_cwd_globals *, v)
#else
extern virtual_cwd_globals cwd_globals;
# define CWDG(v) (cwd_globals.v)
#endif
CWD_API void realpath_cache_clean(void);
CWD_API void realpath_cache_del(const char *path, size_t path_len);
CWD_API realpath_cache_bucket* realpath_cache_lookup(const char *path, size_t path_len, time_t t);
CWD_API zend_long realpath_cache_size(void);
CWD_API zend_long realpath_cache_max_buckets(void);
CWD_API realpath_cache_bucket** realpath_cache_get_buckets(void);
#ifdef CWD_EXPORTS
extern void virtual_cwd_main_cwd_init(uint8_t);
#endif
/* 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)
#define VCWD_FOPEN(path, mode) virtual_fopen(path, mode)
/* Because open() has two modes, we have to macros to replace it */
#define VCWD_OPEN(path, flags) virtual_open(path, flags)
#define VCWD_OPEN_MODE(path, flags, mode) virtual_open(path, flags, mode)
#define VCWD_CREAT(path, mode) virtual_creat(path, mode)
#define VCWD_CHDIR(path) virtual_chdir(path)
#define VCWD_CHDIR_FILE(path) virtual_chdir_file(path, virtual_chdir)
#define VCWD_GETWD(buf)
#define VCWD_REALPATH(path, real_path) virtual_realpath(path, real_path)
#define VCWD_RENAME(oldname, newname) virtual_rename(oldname, newname)
#define VCWD_STAT(path, buff) virtual_stat(path, buff)
# define VCWD_LSTAT(path, buff) virtual_lstat(path, buff)
#define VCWD_UNLINK(path) virtual_unlink(path)
#define VCWD_MKDIR(pathname, mode) virtual_mkdir(pathname, mode)
#define VCWD_RMDIR(pathname) virtual_rmdir(pathname)
#define VCWD_OPENDIR(pathname) virtual_opendir(pathname)
#define VCWD_POPEN(command, type) virtual_popen(command, type)
#define VCWD_ACCESS(pathname, mode) virtual_access(pathname, mode)
#if HAVE_UTIME
#define VCWD_UTIME(path, time) virtual_utime(path, time)
#endif
#define VCWD_CHMOD(path, mode) virtual_chmod(path, mode)
#if !defined(ZEND_WIN32)
#define VCWD_CHOWN(path, owner, group) virtual_chown(path, owner, group, 0)
#if HAVE_LCHOWN
#define VCWD_LCHOWN(path, owner, group) virtual_chown(path, owner, group, 1)
#endif
#endif
#else
#define VCWD_CREAT(path, mode) creat(path, mode)
/* rename on windows will fail if newname already exists.
MoveFileEx has to be used */
#if defined(ZEND_WIN32)
#define VCWD_FOPEN(path, mode) php_win32_ioutil_fopen(path, mode)
#define VCWD_OPEN(path, flags) php_win32_ioutil_open(path, flags)
#define VCWD_OPEN_MODE(path, flags, mode) php_win32_ioutil_open(path, flags, mode)
# define VCWD_RENAME(oldname, newname) php_win32_ioutil_rename(oldname, newname)
#define VCWD_MKDIR(pathname, mode) php_win32_ioutil_mkdir(pathname, mode)
#define VCWD_RMDIR(pathname) php_win32_ioutil_rmdir(pathname)
#define VCWD_UNLINK(path) php_win32_ioutil_unlink(path)
#define VCWD_CHDIR(path) php_win32_ioutil_chdir(path)
#define VCWD_ACCESS(pathname, mode) tsrm_win32_access(pathname, mode)
#define VCWD_GETCWD(buff, size) php_win32_ioutil_getcwd(buff, size)
#define VCWD_CHMOD(path, mode) php_win32_ioutil_chmod(path, mode)
#else
#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_RENAME(oldname, newname) rename(oldname, newname)
#define VCWD_MKDIR(pathname, mode) mkdir(pathname, mode)
#define VCWD_RMDIR(pathname) rmdir(pathname)
#define VCWD_UNLINK(path) unlink(path)
#define VCWD_CHDIR(path) chdir(path)
#define VCWD_ACCESS(pathname, mode) access(pathname, mode)
#define VCWD_GETCWD(buff, size) getcwd(buff, size)
#define VCWD_CHMOD(path, mode) chmod(path, mode)
#endif
#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_OPENDIR(pathname) opendir(pathname)
#define VCWD_POPEN(command, type) popen(command, type)
#define VCWD_REALPATH(path, real_path) tsrm_realpath(path, real_path)
#if HAVE_UTIME
# ifdef ZEND_WIN32
# define VCWD_UTIME(path, time) win32_utime(path, time)
# else
# define VCWD_UTIME(path, time) utime(path, time)
# endif
#endif
#if !defined(ZEND_WIN32)
#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
/* Global stat declarations */
#ifndef _S_IFDIR
#define _S_IFDIR S_IFDIR
#endif
#ifndef _S_IFREG
#define _S_IFREG S_IFREG
#endif
#ifndef S_IFLNK
#define _IFLNK 0120000 /* symbolic link */
#define S_IFLNK _IFLNK
#endif
#ifndef S_ISDIR
#define S_ISDIR(mode) (((mode)&S_IFMT) == S_IFDIR)
#endif
#ifndef S_ISREG
#define S_ISREG(mode) (((mode)&S_IFMT) == S_IFREG)
#endif
#ifndef S_ISLNK
#define S_ISLNK(mode) (((mode)&S_IFMT) == S_IFLNK)
#endif
#ifndef S_IXROOT
#define S_IXROOT ( S_IXUSR | S_IXGRP | S_IXOTH )
#endif
/* XXX should be _S_IFIFO? */
#ifndef S_IFIFO
#define _IFIFO 0010000 /* fifo */
#define S_IFIFO _IFIFO
#endif
#ifndef S_IFBLK
#define _IFBLK 0060000 /* block special */
#define S_IFBLK _IFBLK
#endif
#endif /* VIRTUAL_CWD_H */
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