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php-src/Zend/zend_virtual_cwd.h
Anatol Belski ee4ae7fbc3 Merge remote-tracking branch 'origin/master' into native-tls 
* origin/master:
  remove the remains of dsp files handling
  fix EX usage
  remove misprint parentheses
  remove misprint parentheses
  Replaced EG(This) and EX(object) with EX(This). Internal functions now recieves zend_execute_data as the first argument.
  And this one...
  It should be in extern c
  Remove useless condition
  NEWS entry for previous commit
  NEWS entry for previous commit
  add IPv6 support to php-fpm
  Micro optimization for the most frequency case
  Add hash to EXTENSIONS file
  Remove extensions which are long gone
  we also have xz release tarballs since 5.5
  Fix ZTS build
  improved file size computation in stat()
  Fixed incorrect compilation
  5.5.19 now
2014-10-03 20:30:49 +02:00

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/*
+----------------------------------------------------------------------+
| PHP Version 7 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2014 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> |
| Pierre Joye <pierre@php.net> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#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 && (/* is local */isalpha(path[0]) && path[1] == ':' || /* is UNC */IS_SLASH(path[0]) && IS_SLASH(path[1])))
#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
#elif defined(__GNUC__) && __GNUC__ >= 4
# define CWD_API __attribute__ ((visibility("default")))
#else
# define CWD_API
#endif
#ifdef TSRM_WIN32
CWD_API int php_sys_stat_ex(const char *path, zend_stat_t *buf, int lstat);
# define php_sys_stat(path, buf) php_sys_stat_ex(path, buf, 0)
# define php_sys_lstat(path, buf) php_sys_stat_ex(path, buf, 1)
CWD_API int php_sys_readlink(const char *link, char *target, size_t target_len);
#else
# define php_sys_stat stat
# define php_sys_lstat lstat
# ifdef HAVE_SYMLINK
# define php_sys_readlink(link, target, target_len) readlink(link, target, target_len)
# endif
#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 int virtual_cwd_activate(TSRMLS_D);
CWD_API int virtual_cwd_deactivate(TSRMLS_D);
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(const char *oldname, const char *newname TSRMLS_DC);
CWD_API int virtual_stat(const char *path, zend_stat_t *buf TSRMLS_DC);
CWD_API int virtual_lstat(const char *path, zend_stat_t *buf TSRMLS_DC);
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 TSRMLS_DC);
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 {
zend_ulong key;
char *path;
char *realpath;
struct _realpath_cache_bucket *next;
time_t expires;
int path_len;
int realpath_len;
int is_dir;
#ifdef PHP_WIN32
unsigned char is_rvalid;
unsigned char is_readable;
unsigned char is_wvalid;
unsigned char is_writable;
#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;
# define CWDG(v) ZEND_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);
CWD_API realpath_cache_bucket* realpath_cache_lookup(const char *path, int path_len, time_t t TSRMLS_DC);
CWD_API zend_long realpath_cache_size(TSRMLS_D);
CWD_API zend_long realpath_cache_max_buckets(TSRMLS_D);
CWD_API realpath_cache_bucket** realpath_cache_get_buckets(TSRMLS_D);
/* 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)
# define VCWD_LSTAT(path, buff) virtual_lstat(path, buff TSRMLS_CC)
#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)
/* rename on windows will fail if newname already exists.
MoveFileEx has to be used */
#if defined(TSRM_WIN32)
# define VCWD_RENAME(oldname, newname) (MoveFileEx(oldname, newname, MOVEFILE_REPLACE_EXISTING|MOVEFILE_COPY_ALLOWED) == 0 ? -1 : 0)
#else
# define VCWD_RENAME(oldname, newname) rename(oldname, newname)
#endif
#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 TSRMLS_CC)
#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
# ifdef TSRM_WIN32
# define VCWD_UTIME(path, time) win32_utime(path, time)
# else
# define VCWD_UTIME(path, time) utime(path, time)
# endif
#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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