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https://github.com/php/php-src.git
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330 lines
11 KiB
C
330 lines
11 KiB
C
/*
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+----------------------------------------------------------------------+
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| PHP Version 5 |
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+----------------------------------------------------------------------+
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| Copyright (c) 1997-2008 The PHP Group |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Authors: Andi Gutmans <andi@zend.com> |
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| Sascha Schumann <sascha@schumann.cx> |
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+----------------------------------------------------------------------+
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*/
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/* $Id$ */
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#ifndef VIRTUAL_CWD_H
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#define VIRTUAL_CWD_H
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#include "TSRM.h"
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#include "tsrm_config_common.h"
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <ctype.h>
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#ifdef HAVE_UTIME_H
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#include <utime.h>
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#endif
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#ifdef HAVE_STDARG_H
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#include <stdarg.h>
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#endif
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#ifdef ZTS
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#define VIRTUAL_DIR
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#endif
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#ifndef TSRM_WIN32
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#include <unistd.h>
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#else
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#include <direct.h>
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#endif
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#if defined(__osf__) || defined(_AIX)
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#include <errno.h>
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#endif
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#ifdef TSRM_WIN32
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#include "readdir.h"
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#include <sys/utime.h>
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/* mode_t isn't defined on Windows */
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typedef unsigned short mode_t;
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#define DEFAULT_SLASH '\\'
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#define DEFAULT_DIR_SEPARATOR ';'
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#define IS_SLASH(c) ((c) == '/' || (c) == '\\')
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#define IS_SLASH_P(c) (*(c) == '/' || \
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(*(c) == '\\' && !IsDBCSLeadByte(*(c-1))))
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#define DEFAULT_U_SLASH ((UChar)0x5c) /*'\\'*/
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#define DEFAULT_U_DIR_SEPARATOR ((UChar)0x3b) /*';'*/
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#define IS_U_SLASH(c) ((UChar32)(c) == (UChar32)0x2f /*'/'*/ || (UChar32)(c) == (UChar32)0x5c /*'\\'*/)
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#define IS_U_SLASH_P(c) IS_SLASH(*(c))
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/* COPY_WHEN_ABSOLUTE is 2 under Win32 because by chance both regular absolute paths
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in the file system and UNC paths need copying of two characters */
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#define COPY_WHEN_ABSOLUTE(path) 2
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#define IS_UNC_PATH(path, len) \
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(len >= 2 && IS_SLASH(path[0]) && IS_SLASH(path[1]))
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#define IS_ABSOLUTE_PATH(path, len) \
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(len >= 2 && ((isalpha(path[0]) && path[1] == ':') || IS_UNC_PATH(path, len)))
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#elif defined(NETWARE)
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#ifdef HAVE_DIRENT_H
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#include <dirent.h>
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#endif
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#define DEFAULT_SLASH '/'
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#define DEFAULT_DIR_SEPARATOR ';'
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#define IS_SLASH(c) ((c) == '/' || (c) == '\\')
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#define IS_SLASH_P(c) IS_SLASH(*(c))
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#define DEFAULT_U_SLASH ((UChar)0x2f) /*'/'*/
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#define DEFAULT_U_DIR_SEPARATOR ((UChar)0x3b) /*';'*/
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#define IS_U_SLASH(c) ((UChar32)(c) == (UChar32)0x2f /*'/'*/ || (UChar32)(c) == (UChar32)0x5c /*'\\'*/)
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#define IS_U_SLASH_P(c) IS_U_SLASH(*(c))
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/* Colon indicates volume name, either first character should be forward slash or backward slash */
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#define IS_ABSOLUTE_PATH(path, len) \
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((strchr(path, ':') != NULL) || ((len >= 1) && ((path[0] == '/') || (path[0] == '\\'))))
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#else
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#ifdef HAVE_DIRENT_H
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#include <dirent.h>
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#endif
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#define DEFAULT_SLASH '/'
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#ifdef __riscos__
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#define DEFAULT_DIR_SEPARATOR ';'
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#define DEFAULT_U_DIR_SEPARATOR ((UChar)0x3b) /*';'*/
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#else
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#define DEFAULT_DIR_SEPARATOR ':'
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#define DEFAULT_U_DIR_SEPARATOR ((UChar)0x3a) /*':'*/
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#endif
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#define IS_SLASH(c) ((c) == '/')
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#define IS_SLASH_P(c) IS_SLASH(*(c))
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#define DEFAULT_U_SLASH ((UChar)0x2f) /*'/'*/
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#define IS_U_SLASH(c) ((UChar32)(c) == (UChar32)0x2f /*'/'*/)
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#define IS_U_SLASH_P(c) IS_U_SLASH(*(c))
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#endif
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#ifndef COPY_WHEN_ABSOLUTE
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#define COPY_WHEN_ABSOLUTE(path) 0
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#endif
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#ifndef IS_ABSOLUTE_PATH
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#define IS_ABSOLUTE_PATH(path, len) \
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(IS_SLASH(path[0]))
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#endif
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#ifdef TSRM_EXPORTS
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#define CWD_EXPORTS
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#endif
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#ifdef TSRM_WIN32
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# ifdef CWD_EXPORTS
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# define CWD_API __declspec(dllexport)
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# else
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# define CWD_API __declspec(dllimport)
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# endif
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#elif defined(__GNUC__) && __GNUC__ >= 4
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# define CWD_API __attribute__ ((visibility("default")))
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#else
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# define CWD_API
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#endif
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#ifdef TSRM_WIN32
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CWD_API int php_sys_stat(const char *path, struct stat *buf);
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#else
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# define php_sys_stat stat
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#endif
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typedef struct _cwd_state {
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char *cwd;
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int cwd_length;
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} cwd_state;
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typedef int (*verify_path_func)(const cwd_state *);
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CWD_API void virtual_cwd_startup(void);
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CWD_API void virtual_cwd_shutdown(void);
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CWD_API char *virtual_getcwd_ex(size_t *length TSRMLS_DC);
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CWD_API char *virtual_getcwd(char *buf, size_t size TSRMLS_DC);
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CWD_API int virtual_chdir(const char *path TSRMLS_DC);
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CWD_API int virtual_chdir_file(const char *path, int (*p_chdir)(const char *path TSRMLS_DC) TSRMLS_DC);
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CWD_API int virtual_filepath(const char *path, char **filepath TSRMLS_DC);
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CWD_API int virtual_filepath_ex(const char *path, char **filepath, verify_path_func verify_path TSRMLS_DC);
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CWD_API char *virtual_realpath(const char *path, char *real_path TSRMLS_DC);
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CWD_API FILE *virtual_fopen(const char *path, const char *mode TSRMLS_DC);
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CWD_API int virtual_open(const char *path TSRMLS_DC, int flags, ...);
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CWD_API int virtual_creat(const char *path, mode_t mode TSRMLS_DC);
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CWD_API int virtual_rename(char *oldname, char *newname TSRMLS_DC);
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CWD_API int virtual_stat(const char *path, struct stat *buf TSRMLS_DC);
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#if !defined(TSRM_WIN32)
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CWD_API int virtual_lstat(const char *path, struct stat *buf TSRMLS_DC);
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#endif
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CWD_API int virtual_unlink(const char *path TSRMLS_DC);
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CWD_API int virtual_mkdir(const char *pathname, mode_t mode TSRMLS_DC);
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CWD_API int virtual_rmdir(const char *pathname TSRMLS_DC);
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CWD_API DIR *virtual_opendir(const char *pathname TSRMLS_DC);
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CWD_API FILE *virtual_popen(const char *command, const char *type TSRMLS_DC);
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CWD_API int virtual_access(const char *pathname, int mode TSRMLS_DC);
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#if defined(TSRM_WIN32)
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/* these are not defined in win32 headers */
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#ifndef W_OK
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#define W_OK 0x02
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#endif
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#ifndef R_OK
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#define R_OK 0x04
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#endif
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#ifndef X_OK
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#define X_OK 0x01
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#endif
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#ifndef F_OK
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#define F_OK 0x00
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#endif
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#endif
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#if HAVE_UTIME
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CWD_API int virtual_utime(const char *filename, struct utimbuf *buf TSRMLS_DC);
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#endif
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CWD_API int virtual_chmod(const char *filename, mode_t mode TSRMLS_DC);
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#if !defined(TSRM_WIN32) && !defined(NETWARE)
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CWD_API int virtual_chown(const char *filename, uid_t owner, gid_t group, int link TSRMLS_DC);
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#endif
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/* One of the following constants must be used as the last argument
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in virtual_file_ex() call. */
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#define CWD_EXPAND 0 /* expand "." and ".." but dont resolve symlinks */
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#define CWD_FILEPATH 1 /* resolve symlinks if file is exist otherwise expand */
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#define CWD_REALPATH 2 /* call realpath(), resolve symlinks. File must exist */
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CWD_API int virtual_file_ex(cwd_state *state, const char *path, verify_path_func verify_path, int use_realpath);
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CWD_API char *tsrm_realpath(const char *path, char *real_path TSRMLS_DC);
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#define REALPATH_CACHE_TTL (2*60) /* 2 minutes */
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#define REALPATH_CACHE_SIZE 0 /* disabled while php.ini isn't loaded */
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typedef struct _realpath_cache_bucket {
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unsigned long key;
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char *path;
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int path_len;
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char *realpath;
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int realpath_len;
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time_t expires;
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struct _realpath_cache_bucket *next;
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} realpath_cache_bucket;
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typedef struct _virtual_cwd_globals {
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cwd_state cwd;
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long realpath_cache_size;
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long realpath_cache_size_limit;
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long realpath_cache_ttl;
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realpath_cache_bucket *realpath_cache[1024];
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} virtual_cwd_globals;
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#ifdef ZTS
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extern ts_rsrc_id cwd_globals_id;
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# define CWDG(v) TSRMG(cwd_globals_id, virtual_cwd_globals *, v)
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#else
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extern virtual_cwd_globals cwd_globals;
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# define CWDG(v) (cwd_globals.v)
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#endif
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CWD_API void realpath_cache_clean(TSRMLS_D);
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CWD_API void realpath_cache_del(const char *path, int path_len TSRMLS_DC);
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/* The actual macros to be used in programs using TSRM
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* If the program defines VIRTUAL_DIR it will use the
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* virtual_* functions
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*/
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#ifdef VIRTUAL_DIR
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#define VCWD_GETCWD(buff, size) virtual_getcwd(buff, size TSRMLS_CC)
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#define VCWD_FOPEN(path, mode) virtual_fopen(path, mode TSRMLS_CC)
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/* Because open() has two modes, we have to macros to replace it */
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#define VCWD_OPEN(path, flags) virtual_open(path TSRMLS_CC, flags)
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#define VCWD_OPEN_MODE(path, flags, mode) virtual_open(path TSRMLS_CC, flags, mode)
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#define VCWD_CREAT(path, mode) virtual_creat(path, mode TSRMLS_CC)
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#define VCWD_CHDIR(path) virtual_chdir(path TSRMLS_CC)
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#define VCWD_CHDIR_FILE(path) virtual_chdir_file(path, virtual_chdir TSRMLS_CC)
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#define VCWD_GETWD(buf)
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#define VCWD_REALPATH(path, real_path) virtual_realpath(path, real_path TSRMLS_CC)
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#define VCWD_RENAME(oldname, newname) virtual_rename(oldname, newname TSRMLS_CC)
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#define VCWD_STAT(path, buff) virtual_stat(path, buff TSRMLS_CC)
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#if !defined(TSRM_WIN32)
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#define VCWD_LSTAT(path, buff) virtual_lstat(path, buff TSRMLS_CC)
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#endif
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#define VCWD_UNLINK(path) virtual_unlink(path TSRMLS_CC)
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#define VCWD_MKDIR(pathname, mode) virtual_mkdir(pathname, mode TSRMLS_CC)
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#define VCWD_RMDIR(pathname) virtual_rmdir(pathname TSRMLS_CC)
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#define VCWD_OPENDIR(pathname) virtual_opendir(pathname TSRMLS_CC)
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#define VCWD_POPEN(command, type) virtual_popen(command, type TSRMLS_CC)
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#define VCWD_ACCESS(pathname, mode) virtual_access(pathname, mode TSRMLS_CC)
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#if HAVE_UTIME
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#define VCWD_UTIME(path, time) virtual_utime(path, time TSRMLS_CC)
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#endif
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#define VCWD_CHMOD(path, mode) virtual_chmod(path, mode TSRMLS_CC)
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#if !defined(TSRM_WIN32) && !defined(NETWARE)
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#define VCWD_CHOWN(path, owner, group) virtual_chown(path, owner, group, 0 TSRMLS_CC)
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#if HAVE_LCHOWN
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#define VCWD_LCHOWN(path, owner, group) virtual_chown(path, owner, group, 1 TSRMLS_CC)
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#endif
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#endif
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#else
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#define VCWD_GETCWD(buff, size) getcwd(buff, size)
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#define VCWD_FOPEN(path, mode) fopen(path, mode)
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#define VCWD_OPEN(path, flags) open(path, flags)
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#define VCWD_OPEN_MODE(path, flags, mode) open(path, flags, mode)
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#define VCWD_CREAT(path, mode) creat(path, mode)
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#define VCWD_RENAME(oldname, newname) rename(oldname, newname)
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#define VCWD_CHDIR(path) chdir(path)
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#define VCWD_CHDIR_FILE(path) virtual_chdir_file(path, chdir)
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#define VCWD_GETWD(buf) getwd(buf)
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#define VCWD_STAT(path, buff) php_sys_stat(path, buff)
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#define VCWD_LSTAT(path, buff) lstat(path, buff)
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#define VCWD_UNLINK(path) unlink(path)
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#define VCWD_MKDIR(pathname, mode) mkdir(pathname, mode)
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#define VCWD_RMDIR(pathname) rmdir(pathname)
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#define VCWD_OPENDIR(pathname) opendir(pathname)
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#define VCWD_POPEN(command, type) popen(command, type)
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#if defined(TSRM_WIN32)
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#define VCWD_ACCESS(pathname, mode) tsrm_win32_access(pathname, mode)
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#else
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#define VCWD_ACCESS(pathname, mode) access(pathname, mode)
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#endif
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#define VCWD_REALPATH(path, real_path) tsrm_realpath(path, real_path TSRMLS_CC)
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#if HAVE_UTIME
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#define VCWD_UTIME(path, time) utime(path, time)
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#endif
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#define VCWD_CHMOD(path, mode) chmod(path, mode)
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#if !defined(TSRM_WIN32) && !defined(NETWARE)
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#define VCWD_CHOWN(path, owner, group) chown(path, owner, group)
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#if HAVE_LCHOWN
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#define VCWD_LCHOWN(path, owner, group) lchown(path, owner, group)
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#endif
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#endif
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#endif
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#endif /* VIRTUAL_CWD_H */
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