mirror of
https://github.com/php/php-src.git
synced 2024-11-27 11:53:33 +08:00
397 lines
12 KiB
C
397 lines
12 KiB
C
/*
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+----------------------------------------------------------------------+
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| Copyright (c) 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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| https://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@php.net> |
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| Sascha Schumann <sascha@schumann.cx> |
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| Pierre Joye <pierre@php.net> |
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+----------------------------------------------------------------------+
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*/
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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 <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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#include <stdarg.h>
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#include <limits.h>
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#ifdef HAVE_SYS_PARAM_H
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# include <sys/param.h>
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#endif
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#ifndef MAXPATHLEN
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# ifdef _WIN32
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# include "win32/ioutil.h"
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# define MAXPATHLEN PHP_WIN32_IOUTIL_MAXPATHLEN
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# elif PATH_MAX
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# define MAXPATHLEN PATH_MAX
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# elif defined(MAX_PATH)
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# define MAXPATHLEN MAX_PATH
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# else
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# define MAXPATHLEN 256
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# endif
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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 ZEND_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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#include "zend_stream.h"
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#ifdef ZEND_WIN32
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#include "win32/readdir.h"
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#include <sys/utime.h>
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#include "win32/ioutil.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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/* 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 && (/* is local */isalpha(path[0]) && path[1] == ':' || /* is UNC */IS_SLASH(path[0]) && IS_SLASH(path[1])))
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#else
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#ifdef HAVE_DIRENT_H
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#include <dirent.h>
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#ifndef DT_UNKNOWN
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# define DT_UNKNOWN 0
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#endif
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#ifndef DT_DIR
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# define DT_DIR 4
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#endif
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#ifndef DT_REG
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# define DT_REG 8
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#endif
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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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#else
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#define DEFAULT_DIR_SEPARATOR ':'
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#endif
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#define IS_SLASH(c) ((c) == '/')
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#define IS_SLASH_P(c) (*(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 ZEND_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 ZEND_WIN32
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# define php_sys_stat_ex php_win32_ioutil_stat_ex
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# define php_sys_stat php_win32_ioutil_stat
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# define php_sys_lstat php_win32_ioutil_lstat
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# define php_sys_fstat php_win32_ioutil_fstat
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# define php_sys_readlink php_win32_ioutil_readlink
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# define php_sys_symlink php_win32_ioutil_symlink
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# define php_sys_link php_win32_ioutil_link
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#else
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# define php_sys_stat stat
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# define php_sys_lstat lstat
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# define php_sys_fstat fstat
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# ifdef HAVE_SYMLINK
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# define php_sys_readlink(link, target, target_len) readlink(link, target, target_len)
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# define php_sys_symlink symlink
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# define php_sys_link link
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# endif
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#endif
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typedef struct _cwd_state {
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char *cwd;
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size_t 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 void virtual_cwd_activate(void);
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CWD_API void virtual_cwd_deactivate(void);
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CWD_API char *virtual_getcwd_ex(size_t *length);
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CWD_API char *virtual_getcwd(char *buf, size_t size);
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CWD_API zend_result virtual_chdir(const char *path);
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CWD_API int virtual_chdir_file(const char *path, int (*p_chdir)(const char *path));
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CWD_API int virtual_filepath(const char *path, char **filepath);
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CWD_API int virtual_filepath_ex(const char *path, char **filepath, verify_path_func verify_path);
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CWD_API char *virtual_realpath(const char *path, char *real_path);
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CWD_API FILE *virtual_fopen(const char *path, const char *mode);
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CWD_API int virtual_open(const char *path, int flags, ...);
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CWD_API int virtual_creat(const char *path, mode_t mode);
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CWD_API int virtual_rename(const char *oldname, const char *newname);
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CWD_API int virtual_stat(const char *path, zend_stat_t *buf);
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CWD_API int virtual_lstat(const char *path, zend_stat_t *buf);
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CWD_API int virtual_unlink(const char *path);
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CWD_API int virtual_mkdir(const char *pathname, mode_t mode);
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CWD_API int virtual_rmdir(const char *pathname);
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CWD_API DIR *virtual_opendir(const char *pathname);
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CWD_API FILE *virtual_popen(const char *command, const char *type);
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CWD_API int virtual_access(const char *pathname, int mode);
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#ifdef HAVE_UTIME
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CWD_API int virtual_utime(const char *filename, struct utimbuf *buf);
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#endif
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CWD_API int virtual_chmod(const char *filename, mode_t mode);
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#if !defined(ZEND_WIN32)
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CWD_API int virtual_chown(const char *filename, uid_t owner, gid_t group, int link);
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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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// TODO Make this into an enum
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#define CWD_EXPAND 0 /* expand "." and ".." but don't 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);
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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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zend_ulong key;
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char *path;
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char *realpath;
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struct _realpath_cache_bucket *next;
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time_t expires;
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uint16_t path_len;
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uint16_t realpath_len;
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uint8_t is_dir:1;
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#ifdef ZEND_WIN32
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uint8_t is_rvalid:1;
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uint8_t is_readable:1;
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uint8_t is_wvalid:1;
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uint8_t is_writable:1;
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#endif
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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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zend_long realpath_cache_size;
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zend_long realpath_cache_size_limit;
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zend_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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extern size_t cwd_globals_offset;
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# define CWDG(v) ZEND_TSRMG_FAST(cwd_globals_offset, 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(void);
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CWD_API void realpath_cache_del(const char *path, size_t path_len);
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CWD_API realpath_cache_bucket* realpath_cache_lookup(const char *path, size_t path_len, time_t t);
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CWD_API zend_long realpath_cache_size(void);
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CWD_API zend_long realpath_cache_max_buckets(void);
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CWD_API realpath_cache_bucket** realpath_cache_get_buckets(void);
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#ifdef CWD_EXPORTS
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extern void virtual_cwd_main_cwd_init(uint8_t);
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#endif
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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)
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#define VCWD_FOPEN(path, mode) virtual_fopen(path, mode)
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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, flags)
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#define VCWD_OPEN_MODE(path, flags, mode) virtual_open(path, flags, mode)
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#define VCWD_CREAT(path, mode) virtual_creat(path, mode)
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#define VCWD_CHDIR(path) virtual_chdir(path)
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#define VCWD_CHDIR_FILE(path) virtual_chdir_file(path, (int (*)(const char *)) virtual_chdir)
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#define VCWD_GETWD(buf)
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#define VCWD_REALPATH(path, real_path) virtual_realpath(path, real_path)
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#define VCWD_RENAME(oldname, newname) virtual_rename(oldname, newname)
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#define VCWD_STAT(path, buff) virtual_stat(path, buff)
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# define VCWD_LSTAT(path, buff) virtual_lstat(path, buff)
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#define VCWD_UNLINK(path) virtual_unlink(path)
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#define VCWD_MKDIR(pathname, mode) virtual_mkdir(pathname, mode)
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#define VCWD_RMDIR(pathname) virtual_rmdir(pathname)
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#define VCWD_OPENDIR(pathname) virtual_opendir(pathname)
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#define VCWD_POPEN(command, type) virtual_popen(command, type)
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#define VCWD_ACCESS(pathname, mode) virtual_access(pathname, mode)
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#ifdef HAVE_UTIME
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#define VCWD_UTIME(path, time) virtual_utime(path, time)
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#endif
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#define VCWD_CHMOD(path, mode) virtual_chmod(path, mode)
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#if !defined(ZEND_WIN32)
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#define VCWD_CHOWN(path, owner, group) virtual_chown(path, owner, group, 0)
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#ifdef HAVE_LCHOWN
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#define VCWD_LCHOWN(path, owner, group) virtual_chown(path, owner, group, 1)
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#endif
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#endif
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#else
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#define VCWD_CREAT(path, mode) creat(path, mode)
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/* rename on windows will fail if newname already exists.
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MoveFileEx has to be used */
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#if defined(ZEND_WIN32)
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#define VCWD_FOPEN(path, mode) php_win32_ioutil_fopen(path, mode)
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#define VCWD_OPEN(path, flags) php_win32_ioutil_open(path, flags)
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#define VCWD_OPEN_MODE(path, flags, mode) php_win32_ioutil_open(path, flags, mode)
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# define VCWD_RENAME(oldname, newname) php_win32_ioutil_rename(oldname, newname)
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#define VCWD_MKDIR(pathname, mode) php_win32_ioutil_mkdir(pathname, mode)
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#define VCWD_RMDIR(pathname) php_win32_ioutil_rmdir(pathname)
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#define VCWD_UNLINK(path) php_win32_ioutil_unlink(path)
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#define VCWD_CHDIR(path) php_win32_ioutil_chdir(path)
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#define VCWD_ACCESS(pathname, mode) tsrm_win32_access(pathname, mode)
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#define VCWD_GETCWD(buff, size) php_win32_ioutil_getcwd(buff, size)
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#define VCWD_CHMOD(path, mode) php_win32_ioutil_chmod(path, mode)
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#else
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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_RENAME(oldname, newname) rename(oldname, newname)
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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_UNLINK(path) unlink(path)
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#define VCWD_CHDIR(path) chdir(path)
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#define VCWD_ACCESS(pathname, mode) access(pathname, mode)
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#define VCWD_GETCWD(buff, size) getcwd(buff, size)
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#define VCWD_CHMOD(path, mode) chmod(path, mode)
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#endif
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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_OPENDIR(pathname) opendir(pathname)
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#define VCWD_POPEN(command, type) popen(command, type)
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#define VCWD_REALPATH(path, real_path) tsrm_realpath(path, real_path)
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#ifdef HAVE_UTIME
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# ifdef ZEND_WIN32
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# define VCWD_UTIME(path, time) win32_utime(path, time)
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# else
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# define VCWD_UTIME(path, time) utime(path, time)
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# endif
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#endif
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#if !defined(ZEND_WIN32)
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#define VCWD_CHOWN(path, owner, group) chown(path, owner, group)
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#ifdef 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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/* Global stat declarations */
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#ifndef _S_IFDIR
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#define _S_IFDIR S_IFDIR
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#endif
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#ifndef _S_IFREG
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#define _S_IFREG S_IFREG
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#endif
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#ifndef S_IFLNK
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#define _IFLNK 0120000 /* symbolic link */
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#define S_IFLNK _IFLNK
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#endif
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#ifndef S_ISDIR
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#define S_ISDIR(mode) (((mode)&S_IFMT) == S_IFDIR)
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#endif
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#ifndef S_ISREG
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#define S_ISREG(mode) (((mode)&S_IFMT) == S_IFREG)
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#endif
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#ifndef S_ISLNK
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#define S_ISLNK(mode) (((mode)&S_IFMT) == S_IFLNK)
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#endif
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#ifndef S_IXROOT
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#define S_IXROOT ( S_IXUSR | S_IXGRP | S_IXOTH )
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#endif
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/* XXX should be _S_IFIFO? */
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#ifndef S_IFIFO
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#define _IFIFO 0010000 /* fifo */
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#define S_IFIFO _IFIFO
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#endif
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#ifndef S_IFBLK
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#define _IFBLK 0060000 /* block special */
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#define S_IFBLK _IFBLK
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#endif
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#endif /* VIRTUAL_CWD_H */
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