mirror of
https://github.com/php/php-src.git
synced 2024-12-19 06:50:17 +08:00
81f52158b4
As of Windows 1903, when the OneDrive on-demand feature is enabled, the OneDrive folder is reported as reparse point by `FindFirstFile()`, but trying to get information about the reparse point using `DeviceIoControl()` fails with `ERROR_NOT_A_REPARSE_POINT`. We work around this problem by falling back to `GetFileInformationByHandle()` if that happens, but only if the reparse point is reported as cloud reparse point, and only if PHP is running on Windows 1903 or later. The patch has been developed in collaboration with ab@php.net. We should keep an eye on the somewhat quirky OneDrive behavior, since it might change again in a future Windows release.
1956 lines
48 KiB
C
1956 lines
48 KiB
C
/*
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+----------------------------------------------------------------------+
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| PHP Version 7 |
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+----------------------------------------------------------------------+
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| Copyright (c) 1997-2018 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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| Pierre Joye <pierre@php.net> |
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+----------------------------------------------------------------------+
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*/
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/* $Id$ */
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <string.h>
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#include <stdio.h>
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#include <limits.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <time.h>
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#include "zend.h"
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#include "zend_virtual_cwd.h"
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#ifdef ZEND_WIN32
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#include <io.h>
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#include "tsrm_win32.h"
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# ifndef IO_REPARSE_TAG_SYMLINK
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# define IO_REPARSE_TAG_SYMLINK 0xA000000C
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# endif
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# ifndef IO_REPARSE_TAG_DEDUP
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# define IO_REPARSE_TAG_DEDUP 0x80000013
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# endif
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# ifndef IO_REPARSE_TAG_CLOUD
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# define IO_REPARSE_TAG_CLOUD (0x9000001AL)
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# endif
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/* IO_REPARSE_TAG_CLOUD_1 through IO_REPARSE_TAG_CLOUD_F have values of 0x9000101AL
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to 0x9000F01AL, they can be checked against the mask. */
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#ifndef IO_REPARSE_TAG_CLOUD_MASK
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#define IO_REPARSE_TAG_CLOUD_MASK (0x0000F000L)
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#endif
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#ifndef IO_REPARSE_TAG_ONEDRIVE
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#define IO_REPARSE_TAG_ONEDRIVE (0x80000021L)
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#endif
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# ifndef VOLUME_NAME_NT
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# define VOLUME_NAME_NT 0x2
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# endif
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# ifndef VOLUME_NAME_DOS
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# define VOLUME_NAME_DOS 0x0
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# endif
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#endif
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#ifndef HAVE_REALPATH
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#define realpath(x,y) strcpy(y,x)
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#endif
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#define VIRTUAL_CWD_DEBUG 0
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#include "TSRM.h"
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/* Only need mutex for popen() in Windows because it doesn't chdir() on UNIX */
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#if defined(ZEND_WIN32) && defined(ZTS)
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MUTEX_T cwd_mutex;
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#endif
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#ifdef ZTS
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ts_rsrc_id cwd_globals_id;
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#else
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virtual_cwd_globals cwd_globals;
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#endif
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cwd_state main_cwd_state; /* True global */
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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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#include "zend_globals.h"
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#include "zend_globals_macros.h"
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#endif
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#define CWD_STATE_COPY(d, s) \
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(d)->cwd_length = (s)->cwd_length; \
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(d)->cwd = (char *) emalloc((s)->cwd_length+1); \
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memcpy((d)->cwd, (s)->cwd, (s)->cwd_length+1);
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#define CWD_STATE_FREE(s) \
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efree((s)->cwd); \
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(s)->cwd_length = 0;
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#ifdef ZEND_WIN32
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# define CWD_STATE_FREE_ERR(state) do { \
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DWORD last_error = GetLastError(); \
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CWD_STATE_FREE(state); \
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SetLastError(last_error); \
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} while (0)
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#else
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# define CWD_STATE_FREE_ERR(state) CWD_STATE_FREE(state)
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#endif
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#ifdef ZEND_WIN32
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#ifdef CTL_CODE
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#undef CTL_CODE
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#endif
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#define CTL_CODE(DeviceType,Function,Method,Access) (((DeviceType) << 16) | ((Access) << 14) | ((Function) << 2) | (Method))
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#define FILE_DEVICE_FILE_SYSTEM 0x00000009
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#define METHOD_BUFFERED 0
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#define FILE_ANY_ACCESS 0
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#define FSCTL_GET_REPARSE_POINT CTL_CODE(FILE_DEVICE_FILE_SYSTEM, 42, METHOD_BUFFERED, FILE_ANY_ACCESS)
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#define MAXIMUM_REPARSE_DATA_BUFFER_SIZE ( 16 * 1024 )
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typedef struct {
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unsigned long ReparseTag;
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unsigned short ReparseDataLength;
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unsigned short Reserved;
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union {
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struct {
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unsigned short SubstituteNameOffset;
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unsigned short SubstituteNameLength;
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unsigned short PrintNameOffset;
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unsigned short PrintNameLength;
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unsigned long Flags;
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wchar_t ReparseTarget[1];
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} SymbolicLinkReparseBuffer;
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struct {
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unsigned short SubstituteNameOffset;
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unsigned short SubstituteNameLength;
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unsigned short PrintNameOffset;
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unsigned short PrintNameLength;
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wchar_t ReparseTarget[1];
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} MountPointReparseBuffer;
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struct {
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unsigned char ReparseTarget[1];
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} GenericReparseBuffer;
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};
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} REPARSE_DATA_BUFFER, *PREPARSE_DATA_BUFFER;
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#define SECS_BETWEEN_EPOCHS (__int64)11644473600
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#define SECS_TO_100NS (__int64)10000000
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static inline time_t FileTimeToUnixTime(const FILETIME *FileTime)
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{
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__int64 UnixTime;
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long *nsec = NULL;
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SYSTEMTIME SystemTime;
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FileTimeToSystemTime(FileTime, &SystemTime);
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UnixTime = ((__int64)FileTime->dwHighDateTime << 32) +
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FileTime->dwLowDateTime;
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UnixTime -= (SECS_BETWEEN_EPOCHS * SECS_TO_100NS);
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if (nsec) {
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*nsec = (UnixTime % SECS_TO_100NS) * (__int64)100;
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}
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UnixTime /= SECS_TO_100NS; /* now convert to seconds */
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if ((time_t)UnixTime != UnixTime) {
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UnixTime = 0;
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}
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return (time_t)UnixTime;
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}
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CWD_API int php_sys_readlink(const char *link, char *target, size_t target_len){ /* {{{ */
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HANDLE hFile;
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wchar_t *linkw = php_win32_ioutil_any_to_w(link), targetw[MAXPATHLEN];
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size_t ret_len, targetw_len, offset = 0;
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char *ret;
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if (!linkw) {
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return -1;
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}
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if (!target_len) {
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free(linkw);
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return -1;
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}
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hFile = CreateFileW(linkw, // file to open
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GENERIC_READ, // open for reading
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FILE_SHARE_READ, // share for reading
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NULL, // default security
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OPEN_EXISTING, // existing file only
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FILE_FLAG_BACKUP_SEMANTICS, // normal file
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NULL); // no attr. template
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if( hFile == INVALID_HANDLE_VALUE) {
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free(linkw);
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return -1;
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}
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/* Despite MSDN has documented it won't to, the length returned by
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GetFinalPathNameByHandleA includes the length of the
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null terminator. This behavior is at least reproducible
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with VS2012 and earlier, and seems not to be fixed till
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now. Thus, correcting target_len so it's suddenly don't
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overflown. */
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targetw_len = GetFinalPathNameByHandleW(hFile, targetw, MAXPATHLEN, VOLUME_NAME_DOS);
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if(targetw_len >= target_len || targetw_len >= MAXPATHLEN || targetw_len == 0) {
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free(linkw);
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CloseHandle(hFile);
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return -1;
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}
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if(targetw_len > 4) {
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/* Skip first 4 characters if they are "\\?\" */
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if(targetw[0] == L'\\' && targetw[1] == L'\\' && targetw[2] == L'?' && targetw[3] == L'\\') {
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offset = 4;
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/* \\?\UNC\ */
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if (targetw_len > 7 && targetw[4] == L'U' && targetw[5] == L'N' && targetw[6] == L'C') {
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offset += 2;
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targetw[offset] = L'\\';
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}
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}
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}
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ret = php_win32_ioutil_conv_w_to_any(targetw + offset, targetw_len - offset, &ret_len);
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if (!ret || ret_len >= MAXPATHLEN) {
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CloseHandle(hFile);
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free(linkw);
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free(ret);
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return -1;
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}
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memcpy(target, ret, ret_len + 1);
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free(ret);
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CloseHandle(hFile);
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free(linkw);
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return ret_len;
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}
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/* }}} */
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CWD_API int php_sys_stat_ex(const char *path, zend_stat_t *buf, int lstat) /* {{{ */
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{
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WIN32_FILE_ATTRIBUTE_DATA data;
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LARGE_INTEGER t;
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size_t pathw_len = 0;
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ALLOCA_FLAG(use_heap_large)
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wchar_t *pathw = php_win32_ioutil_conv_any_to_w(path, PHP_WIN32_CP_IGNORE_LEN, &pathw_len);
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if (!pathw) {
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return -1;
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}
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if (!GetFileAttributesExW(pathw, GetFileExInfoStandard, &data)) {
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int ret;
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#if ZEND_ENABLE_ZVAL_LONG64
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ret = _wstat64(pathw, buf);
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#else
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ret = _wstat(pathw, (struct _stat32 *)buf);
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#endif
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free(pathw);
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return ret;
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}
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if (pathw_len >= 1 && pathw[1] == L':') {
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if (pathw[0] >= L'A' && pathw[0] <= L'Z') {
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buf->st_dev = buf->st_rdev = pathw[0] - L'A';
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} else {
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buf->st_dev = buf->st_rdev = pathw[0] - L'a';
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}
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} else if (PHP_WIN32_IOUTIL_IS_UNC(pathw, pathw_len)) {
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buf->st_dev = buf->st_rdev = 0;
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} else {
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wchar_t cur_path[MAXPATHLEN+1];
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if (NULL != _wgetcwd(cur_path, sizeof(cur_path)/sizeof(wchar_t))) {
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if (cur_path[1] == L':') {
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if (pathw[0] >= L'A' && pathw[0] <= L'Z') {
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buf->st_dev = buf->st_rdev = pathw[0] - L'A';
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} else {
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buf->st_dev = buf->st_rdev = pathw[0] - L'a';
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}
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} else {
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buf->st_dev = buf->st_rdev = -1;
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}
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} else {
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buf->st_dev = buf->st_rdev = -1;
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}
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}
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buf->st_uid = buf->st_gid = buf->st_ino = 0;
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if (lstat && data.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) {
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/* File is a reparse point. Get the target */
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HANDLE hLink = NULL;
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REPARSE_DATA_BUFFER * pbuffer;
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DWORD retlength = 0;
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hLink = CreateFileW(pathw, GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_FLAG_OPEN_REPARSE_POINT|FILE_FLAG_BACKUP_SEMANTICS, NULL);
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if(hLink == INVALID_HANDLE_VALUE) {
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free(pathw);
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return -1;
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}
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pbuffer = (REPARSE_DATA_BUFFER *)do_alloca(MAXIMUM_REPARSE_DATA_BUFFER_SIZE, use_heap_large);
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if(!DeviceIoControl(hLink, FSCTL_GET_REPARSE_POINT, NULL, 0, pbuffer, MAXIMUM_REPARSE_DATA_BUFFER_SIZE, &retlength, NULL)) {
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free_alloca(pbuffer, use_heap_large);
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CloseHandle(hLink);
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free(pathw);
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return -1;
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}
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CloseHandle(hLink);
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if(pbuffer->ReparseTag == IO_REPARSE_TAG_SYMLINK) {
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buf->st_mode = S_IFLNK;
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buf->st_mode |= (data.dwFileAttributes & FILE_ATTRIBUTE_READONLY) ? (S_IREAD|(S_IREAD>>3)|(S_IREAD>>6)) : (S_IREAD|(S_IREAD>>3)|(S_IREAD>>6)|S_IWRITE|(S_IWRITE>>3)|(S_IWRITE>>6));
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}
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#if 0 /* Not used yet */
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else if(pbuffer->ReparseTag == IO_REPARSE_TAG_MOUNT_POINT) {
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buf->st_mode |=;
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}
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#endif
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free_alloca(pbuffer, use_heap_large);
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} else {
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buf->st_mode = (data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) ? (S_IFDIR|S_IEXEC|(S_IEXEC>>3)|(S_IEXEC>>6)) : S_IFREG;
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buf->st_mode |= (data.dwFileAttributes & FILE_ATTRIBUTE_READONLY) ? (S_IREAD|(S_IREAD>>3)|(S_IREAD>>6)) : (S_IREAD|(S_IREAD>>3)|(S_IREAD>>6)|S_IWRITE|(S_IWRITE>>3)|(S_IWRITE>>6));
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}
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if ((data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == 0) {
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if (pathw_len >= 4 && pathw[pathw_len-4] == L'.') {
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if (_wcsnicmp(pathw+pathw_len-3, L"exe", 3) == 0 ||
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_wcsnicmp(pathw+pathw_len-3, L"com", 3) == 0 ||
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_wcsnicmp(pathw+pathw_len-3, L"bat", 3) == 0 ||
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_wcsnicmp(pathw+pathw_len-3, L"cmd", 3) == 0) {
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buf->st_mode |= (S_IEXEC|(S_IEXEC>>3)|(S_IEXEC>>6));
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}
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}
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}
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buf->st_nlink = 1;
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t.HighPart = data.nFileSizeHigh;
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t.LowPart = data.nFileSizeLow;
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/* It's an overflow on 32 bit, however it won't fix as long
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as zend_long is 32 bit. */
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buf->st_size = (zend_long)t.QuadPart;
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buf->st_atime = FileTimeToUnixTime(&data.ftLastAccessTime);
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buf->st_ctime = FileTimeToUnixTime(&data.ftCreationTime);
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buf->st_mtime = FileTimeToUnixTime(&data.ftLastWriteTime);
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free(pathw);
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return 0;
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}
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/* }}} */
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#endif
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static int php_is_dir_ok(const cwd_state *state) /* {{{ */
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{
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zend_stat_t buf;
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if (php_sys_stat(state->cwd, &buf) == 0 && S_ISDIR(buf.st_mode))
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return (0);
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return (1);
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}
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/* }}} */
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static int php_is_file_ok(const cwd_state *state) /* {{{ */
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{
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zend_stat_t buf;
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if (php_sys_stat(state->cwd, &buf) == 0 && S_ISREG(buf.st_mode))
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return (0);
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return (1);
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}
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/* }}} */
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static void cwd_globals_ctor(virtual_cwd_globals *cwd_g) /* {{{ */
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{
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CWD_STATE_COPY(&cwd_g->cwd, &main_cwd_state);
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cwd_g->realpath_cache_size = 0;
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cwd_g->realpath_cache_size_limit = REALPATH_CACHE_SIZE;
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cwd_g->realpath_cache_ttl = REALPATH_CACHE_TTL;
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memset(cwd_g->realpath_cache, 0, sizeof(cwd_g->realpath_cache));
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}
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/* }}} */
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static void cwd_globals_dtor(virtual_cwd_globals *cwd_g) /* {{{ */
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{
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realpath_cache_clean();
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}
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/* }}} */
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void virtual_cwd_main_cwd_init(uint8_t reinit) /* {{{ */
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{
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char cwd[MAXPATHLEN];
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char *result;
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if (reinit) {
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free(main_cwd_state.cwd);
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}
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#ifdef ZEND_WIN32
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ZeroMemory(&cwd, sizeof(cwd));
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result = php_win32_ioutil_getcwd(cwd, sizeof(cwd));
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#else
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result = getcwd(cwd, sizeof(cwd));
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#endif
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if (!result) {
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cwd[0] = '\0';
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}
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main_cwd_state.cwd_length = (int)strlen(cwd);
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#ifdef ZEND_WIN32
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if (main_cwd_state.cwd_length >= 2 && cwd[1] == ':') {
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cwd[0] = toupper(cwd[0]);
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}
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#endif
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main_cwd_state.cwd = strdup(cwd);
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}
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/* }}} */
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CWD_API void virtual_cwd_startup(void) /* {{{ */
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{
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virtual_cwd_main_cwd_init(0);
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#ifdef ZTS
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ts_allocate_id(&cwd_globals_id, sizeof(virtual_cwd_globals), (ts_allocate_ctor) cwd_globals_ctor, (ts_allocate_dtor) cwd_globals_dtor);
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#else
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cwd_globals_ctor(&cwd_globals);
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#endif
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#if (defined(ZEND_WIN32)) && defined(ZTS)
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cwd_mutex = tsrm_mutex_alloc();
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#endif
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}
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/* }}} */
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CWD_API void virtual_cwd_shutdown(void) /* {{{ */
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{
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#ifndef ZTS
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cwd_globals_dtor(&cwd_globals);
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#endif
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#if (defined(ZEND_WIN32)) && defined(ZTS)
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tsrm_mutex_free(cwd_mutex);
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#endif
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free(main_cwd_state.cwd); /* Don't use CWD_STATE_FREE because the non global states will probably use emalloc()/efree() */
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}
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/* }}} */
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|
CWD_API int virtual_cwd_activate(void) /* {{{ */
|
|
{
|
|
if (CWDG(cwd).cwd == NULL) {
|
|
CWD_STATE_COPY(&CWDG(cwd), &main_cwd_state);
|
|
}
|
|
return 0;
|
|
}
|
|
/* }}} */
|
|
|
|
CWD_API int virtual_cwd_deactivate(void) /* {{{ */
|
|
{
|
|
if (CWDG(cwd).cwd != NULL) {
|
|
CWD_STATE_FREE(&CWDG(cwd));
|
|
CWDG(cwd).cwd = NULL;
|
|
}
|
|
return 0;
|
|
}
|
|
/* }}} */
|
|
|
|
CWD_API char *virtual_getcwd_ex(size_t *length) /* {{{ */
|
|
{
|
|
cwd_state *state;
|
|
|
|
state = &CWDG(cwd);
|
|
|
|
if (state->cwd_length == 0) {
|
|
char *retval;
|
|
|
|
*length = 1;
|
|
retval = (char *) emalloc(2);
|
|
retval[0] = DEFAULT_SLASH;
|
|
retval[1] = '\0';
|
|
return retval;
|
|
}
|
|
|
|
#ifdef ZEND_WIN32
|
|
/* If we have something like C: */
|
|
if (state->cwd_length == 2 && state->cwd[state->cwd_length-1] == ':') {
|
|
char *retval;
|
|
|
|
*length = state->cwd_length+1;
|
|
retval = (char *) emalloc(*length+1);
|
|
memcpy(retval, state->cwd, *length);
|
|
retval[0] = toupper(retval[0]);
|
|
retval[*length-1] = DEFAULT_SLASH;
|
|
retval[*length] = '\0';
|
|
return retval;
|
|
}
|
|
#endif
|
|
if (!state->cwd) {
|
|
*length = 0;
|
|
return NULL;
|
|
}
|
|
|
|
*length = state->cwd_length;
|
|
return estrdup(state->cwd);
|
|
}
|
|
/* }}} */
|
|
|
|
/* Same semantics as UNIX getcwd() */
|
|
CWD_API char *virtual_getcwd(char *buf, size_t size) /* {{{ */
|
|
{
|
|
size_t length;
|
|
char *cwd;
|
|
|
|
cwd = virtual_getcwd_ex(&length);
|
|
|
|
if (buf == NULL) {
|
|
return cwd;
|
|
}
|
|
if (length > size-1) {
|
|
efree(cwd);
|
|
errno = ERANGE; /* Is this OK? */
|
|
return NULL;
|
|
}
|
|
if (!cwd) {
|
|
return NULL;
|
|
}
|
|
memcpy(buf, cwd, length+1);
|
|
efree(cwd);
|
|
return buf;
|
|
}
|
|
/* }}} */
|
|
|
|
#ifdef ZEND_WIN32
|
|
static inline zend_ulong realpath_cache_key(const char *path, size_t path_len) /* {{{ */
|
|
{
|
|
register zend_ulong h;
|
|
size_t bucket_key_len;
|
|
char *bucket_key_start = tsrm_win32_get_path_sid_key(path, path_len, &bucket_key_len);
|
|
char *bucket_key = (char *)bucket_key_start;
|
|
const char *e;
|
|
|
|
if (!bucket_key) {
|
|
return 0;
|
|
}
|
|
|
|
e = bucket_key + bucket_key_len;
|
|
for (h = Z_UL(2166136261); bucket_key < e;) {
|
|
h *= Z_UL(16777619);
|
|
h ^= *bucket_key++;
|
|
}
|
|
if (bucket_key_start != path) {
|
|
HeapFree(GetProcessHeap(), 0, (LPVOID)bucket_key_start);
|
|
}
|
|
return h;
|
|
}
|
|
/* }}} */
|
|
#else
|
|
static inline zend_ulong realpath_cache_key(const char *path, size_t path_len) /* {{{ */
|
|
{
|
|
register zend_ulong h;
|
|
const char *e = path + path_len;
|
|
|
|
for (h = Z_UL(2166136261); path < e;) {
|
|
h *= Z_UL(16777619);
|
|
h ^= *path++;
|
|
}
|
|
|
|
return h;
|
|
}
|
|
/* }}} */
|
|
#endif /* defined(ZEND_WIN32) */
|
|
|
|
CWD_API void realpath_cache_clean(void) /* {{{ */
|
|
{
|
|
uint32_t i;
|
|
|
|
for (i = 0; i < sizeof(CWDG(realpath_cache))/sizeof(CWDG(realpath_cache)[0]); i++) {
|
|
realpath_cache_bucket *p = CWDG(realpath_cache)[i];
|
|
while (p != NULL) {
|
|
realpath_cache_bucket *r = p;
|
|
p = p->next;
|
|
free(r);
|
|
}
|
|
CWDG(realpath_cache)[i] = NULL;
|
|
}
|
|
CWDG(realpath_cache_size) = 0;
|
|
}
|
|
/* }}} */
|
|
|
|
CWD_API void realpath_cache_del(const char *path, size_t path_len) /* {{{ */
|
|
{
|
|
zend_ulong key = realpath_cache_key(path, path_len);
|
|
zend_ulong n = key % (sizeof(CWDG(realpath_cache)) / sizeof(CWDG(realpath_cache)[0]));
|
|
realpath_cache_bucket **bucket = &CWDG(realpath_cache)[n];
|
|
|
|
while (*bucket != NULL) {
|
|
if (key == (*bucket)->key && path_len == (*bucket)->path_len &&
|
|
memcmp(path, (*bucket)->path, path_len) == 0) {
|
|
realpath_cache_bucket *r = *bucket;
|
|
*bucket = (*bucket)->next;
|
|
|
|
/* if the pointers match then only subtract the length of the path */
|
|
if(r->path == r->realpath) {
|
|
CWDG(realpath_cache_size) -= sizeof(realpath_cache_bucket) + r->path_len + 1;
|
|
} else {
|
|
CWDG(realpath_cache_size) -= sizeof(realpath_cache_bucket) + r->path_len + 1 + r->realpath_len + 1;
|
|
}
|
|
|
|
free(r);
|
|
return;
|
|
} else {
|
|
bucket = &(*bucket)->next;
|
|
}
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
static inline void realpath_cache_add(const char *path, size_t path_len, const char *realpath, size_t realpath_len, int is_dir, time_t t) /* {{{ */
|
|
{
|
|
zend_long size = sizeof(realpath_cache_bucket) + path_len + 1;
|
|
int same = 1;
|
|
|
|
if (realpath_len != path_len ||
|
|
memcmp(path, realpath, path_len) != 0) {
|
|
size += realpath_len + 1;
|
|
same = 0;
|
|
}
|
|
|
|
if (CWDG(realpath_cache_size) + size <= CWDG(realpath_cache_size_limit)) {
|
|
realpath_cache_bucket *bucket = malloc(size);
|
|
zend_ulong n;
|
|
|
|
if (bucket == NULL) {
|
|
return;
|
|
}
|
|
|
|
bucket->key = realpath_cache_key(path, path_len);
|
|
bucket->path = (char*)bucket + sizeof(realpath_cache_bucket);
|
|
memcpy(bucket->path, path, path_len+1);
|
|
bucket->path_len = path_len;
|
|
if (same) {
|
|
bucket->realpath = bucket->path;
|
|
} else {
|
|
bucket->realpath = bucket->path + (path_len + 1);
|
|
memcpy(bucket->realpath, realpath, realpath_len+1);
|
|
}
|
|
bucket->realpath_len = realpath_len;
|
|
bucket->is_dir = is_dir > 0;
|
|
#ifdef ZEND_WIN32
|
|
bucket->is_rvalid = 0;
|
|
bucket->is_readable = 0;
|
|
bucket->is_wvalid = 0;
|
|
bucket->is_writable = 0;
|
|
#endif
|
|
bucket->expires = t + CWDG(realpath_cache_ttl);
|
|
n = bucket->key % (sizeof(CWDG(realpath_cache)) / sizeof(CWDG(realpath_cache)[0]));
|
|
bucket->next = CWDG(realpath_cache)[n];
|
|
CWDG(realpath_cache)[n] = bucket;
|
|
CWDG(realpath_cache_size) += size;
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
static inline realpath_cache_bucket* realpath_cache_find(const char *path, size_t path_len, time_t t) /* {{{ */
|
|
{
|
|
zend_ulong key = realpath_cache_key(path, path_len);
|
|
zend_ulong n = key % (sizeof(CWDG(realpath_cache)) / sizeof(CWDG(realpath_cache)[0]));
|
|
realpath_cache_bucket **bucket = &CWDG(realpath_cache)[n];
|
|
|
|
while (*bucket != NULL) {
|
|
if (CWDG(realpath_cache_ttl) && (*bucket)->expires < t) {
|
|
realpath_cache_bucket *r = *bucket;
|
|
*bucket = (*bucket)->next;
|
|
|
|
/* if the pointers match then only subtract the length of the path */
|
|
if(r->path == r->realpath) {
|
|
CWDG(realpath_cache_size) -= sizeof(realpath_cache_bucket) + r->path_len + 1;
|
|
} else {
|
|
CWDG(realpath_cache_size) -= sizeof(realpath_cache_bucket) + r->path_len + 1 + r->realpath_len + 1;
|
|
}
|
|
free(r);
|
|
} else if (key == (*bucket)->key && path_len == (*bucket)->path_len &&
|
|
memcmp(path, (*bucket)->path, path_len) == 0) {
|
|
return *bucket;
|
|
} else {
|
|
bucket = &(*bucket)->next;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
/* }}} */
|
|
|
|
CWD_API realpath_cache_bucket* realpath_cache_lookup(const char *path, size_t path_len, time_t t) /* {{{ */
|
|
{
|
|
return realpath_cache_find(path, path_len, t);
|
|
}
|
|
/* }}} */
|
|
|
|
CWD_API zend_long realpath_cache_size(void)
|
|
{
|
|
return CWDG(realpath_cache_size);
|
|
}
|
|
|
|
CWD_API zend_long realpath_cache_max_buckets(void)
|
|
{
|
|
return (sizeof(CWDG(realpath_cache)) / sizeof(CWDG(realpath_cache)[0]));
|
|
}
|
|
|
|
CWD_API realpath_cache_bucket** realpath_cache_get_buckets(void)
|
|
{
|
|
return CWDG(realpath_cache);
|
|
}
|
|
|
|
|
|
#undef LINK_MAX
|
|
#define LINK_MAX 32
|
|
|
|
static int tsrm_realpath_r(char *path, int start, int len, int *ll, time_t *t, int use_realpath, int is_dir, int *link_is_dir) /* {{{ */
|
|
{
|
|
int i, j, save;
|
|
int directory = 0;
|
|
#ifdef ZEND_WIN32
|
|
WIN32_FIND_DATAW dataw;
|
|
HANDLE hFind = INVALID_HANDLE_VALUE;
|
|
ALLOCA_FLAG(use_heap_large)
|
|
wchar_t *pathw = NULL;
|
|
#define FREE_PATHW() \
|
|
do { free(pathw); } while(0);
|
|
|
|
#else
|
|
zend_stat_t st;
|
|
#endif
|
|
realpath_cache_bucket *bucket;
|
|
char *tmp;
|
|
ALLOCA_FLAG(use_heap)
|
|
|
|
while (1) {
|
|
if (len <= start) {
|
|
if (link_is_dir) {
|
|
*link_is_dir = 1;
|
|
}
|
|
return start;
|
|
}
|
|
|
|
i = len;
|
|
while (i > start && !IS_SLASH(path[i-1])) {
|
|
i--;
|
|
}
|
|
|
|
if (i == len ||
|
|
(i == len - 1 && path[i] == '.')) {
|
|
/* remove double slashes and '.' */
|
|
len = i - 1;
|
|
is_dir = 1;
|
|
continue;
|
|
} else if (i == len - 2 && path[i] == '.' && path[i+1] == '.') {
|
|
/* remove '..' and previous directory */
|
|
is_dir = 1;
|
|
if (link_is_dir) {
|
|
*link_is_dir = 1;
|
|
}
|
|
if (i - 1 <= start) {
|
|
return start ? start : len;
|
|
}
|
|
j = tsrm_realpath_r(path, start, i-1, ll, t, use_realpath, 1, NULL);
|
|
if (j > start) {
|
|
j--;
|
|
while (j > start && !IS_SLASH(path[j])) {
|
|
j--;
|
|
}
|
|
if (!start) {
|
|
/* leading '..' must not be removed in case of relative path */
|
|
if (j == 0 && path[0] == '.' && path[1] == '.' &&
|
|
IS_SLASH(path[2])) {
|
|
path[3] = '.';
|
|
path[4] = '.';
|
|
path[5] = DEFAULT_SLASH;
|
|
j = 5;
|
|
} else if (j > 0 &&
|
|
path[j+1] == '.' && path[j+2] == '.' &&
|
|
IS_SLASH(path[j+3])) {
|
|
j += 4;
|
|
path[j++] = '.';
|
|
path[j++] = '.';
|
|
path[j] = DEFAULT_SLASH;
|
|
}
|
|
}
|
|
} else if (!start && !j) {
|
|
/* leading '..' must not be removed in case of relative path */
|
|
path[0] = '.';
|
|
path[1] = '.';
|
|
path[2] = DEFAULT_SLASH;
|
|
j = 2;
|
|
}
|
|
return j;
|
|
}
|
|
|
|
path[len] = 0;
|
|
|
|
save = (use_realpath != CWD_EXPAND);
|
|
|
|
if (start && save && CWDG(realpath_cache_size_limit)) {
|
|
/* cache lookup for absolute path */
|
|
if (!*t) {
|
|
*t = time(0);
|
|
}
|
|
if ((bucket = realpath_cache_find(path, len, *t)) != NULL) {
|
|
if (is_dir && !bucket->is_dir) {
|
|
/* not a directory */
|
|
return -1;
|
|
} else {
|
|
if (link_is_dir) {
|
|
*link_is_dir = bucket->is_dir;
|
|
}
|
|
memcpy(path, bucket->realpath, bucket->realpath_len + 1);
|
|
return bucket->realpath_len;
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifdef ZEND_WIN32
|
|
if (save) {
|
|
pathw = php_win32_ioutil_any_to_w(path);
|
|
if (!pathw) {
|
|
return -1;
|
|
}
|
|
hFind = FindFirstFileExW(pathw, FindExInfoBasic, &dataw, FindExSearchNameMatch, NULL, 0);
|
|
if (INVALID_HANDLE_VALUE == hFind) {
|
|
if (use_realpath == CWD_REALPATH) {
|
|
/* file not found */
|
|
FREE_PATHW()
|
|
return -1;
|
|
}
|
|
/* continue resolution anyway but don't save result in the cache */
|
|
save = 0;
|
|
} else {
|
|
FindClose(hFind);
|
|
}
|
|
}
|
|
|
|
tmp = do_alloca(len+1, use_heap);
|
|
memcpy(tmp, path, len+1);
|
|
|
|
retry:
|
|
if(save &&
|
|
!(IS_UNC_PATH(path, len) && len >= 3 && path[2] != '?') &&
|
|
(dataw.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT)
|
|
) {
|
|
/* File is a reparse point. Get the target */
|
|
HANDLE hLink = NULL;
|
|
REPARSE_DATA_BUFFER * pbuffer;
|
|
DWORD retlength = 0;
|
|
int bufindex = 0, isabsolute = 0;
|
|
wchar_t * reparsetarget;
|
|
BOOL isVolume = FALSE;
|
|
#if VIRTUAL_CWD_DEBUG
|
|
char *printname = NULL;
|
|
#endif
|
|
char *substitutename = NULL;
|
|
size_t substitutename_len;
|
|
int substitutename_off = 0;
|
|
wchar_t tmpsubstname[MAXPATHLEN];
|
|
|
|
if(++(*ll) > LINK_MAX) {
|
|
free_alloca(tmp, use_heap);
|
|
FREE_PATHW()
|
|
return -1;
|
|
}
|
|
|
|
hLink = CreateFileW(pathw, 0, 0, NULL, OPEN_EXISTING, FILE_FLAG_OPEN_REPARSE_POINT|FILE_FLAG_BACKUP_SEMANTICS, NULL);
|
|
if(hLink == INVALID_HANDLE_VALUE) {
|
|
free_alloca(tmp, use_heap);
|
|
FREE_PATHW()
|
|
return -1;
|
|
}
|
|
|
|
pbuffer = (REPARSE_DATA_BUFFER *)do_alloca(MAXIMUM_REPARSE_DATA_BUFFER_SIZE, use_heap_large);
|
|
if (pbuffer == NULL) {
|
|
CloseHandle(hLink);
|
|
free_alloca(tmp, use_heap);
|
|
FREE_PATHW()
|
|
return -1;
|
|
}
|
|
if(!DeviceIoControl(hLink, FSCTL_GET_REPARSE_POINT, NULL, 0, pbuffer, MAXIMUM_REPARSE_DATA_BUFFER_SIZE, &retlength, NULL)) {
|
|
BY_HANDLE_FILE_INFORMATION fileInformation;
|
|
|
|
free_alloca(pbuffer, use_heap_large);
|
|
if ((dataw.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) &&
|
|
(dataw.dwReserved0 & ~IO_REPARSE_TAG_CLOUD_MASK) == IO_REPARSE_TAG_CLOUD &&
|
|
EG(windows_version_info).dwMajorVersion >= 10 &&
|
|
EG(windows_version_info).dwMinorVersion == 0 &&
|
|
EG(windows_version_info).dwBuildNumber >= 18362 &&
|
|
GetFileInformationByHandle(hLink, &fileInformation) &&
|
|
!(fileInformation.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT)) {
|
|
dataw.dwFileAttributes = fileInformation.dwFileAttributes;
|
|
CloseHandle(hLink);
|
|
(*ll)--;
|
|
goto retry;
|
|
}
|
|
free_alloca(tmp, use_heap);
|
|
CloseHandle(hLink);
|
|
FREE_PATHW()
|
|
return -1;
|
|
}
|
|
|
|
CloseHandle(hLink);
|
|
|
|
if(pbuffer->ReparseTag == IO_REPARSE_TAG_SYMLINK) {
|
|
reparsetarget = pbuffer->SymbolicLinkReparseBuffer.ReparseTarget;
|
|
isabsolute = (pbuffer->SymbolicLinkReparseBuffer.Flags == 0) ? 1 : 0;
|
|
#if VIRTUAL_CWD_DEBUG
|
|
printname = php_win32_ioutil_w_to_any(reparsetarget + pbuffer->MountPointReparseBuffer.PrintNameOffset / sizeof(WCHAR));
|
|
if (!printname) {
|
|
free_alloca(pbuffer, use_heap_large);
|
|
free_alloca(tmp, use_heap);
|
|
FREE_PATHW()
|
|
return -1;
|
|
}
|
|
#endif
|
|
|
|
substitutename_len = pbuffer->MountPointReparseBuffer.SubstituteNameLength / sizeof(WCHAR);
|
|
if (substitutename_len >= MAXPATHLEN) {
|
|
free_alloca(pbuffer, use_heap_large);
|
|
free_alloca(tmp, use_heap);
|
|
FREE_PATHW()
|
|
return -1;
|
|
}
|
|
memmove(tmpsubstname, reparsetarget + pbuffer->MountPointReparseBuffer.SubstituteNameOffset / sizeof(WCHAR), pbuffer->MountPointReparseBuffer.SubstituteNameLength);
|
|
tmpsubstname[substitutename_len] = L'\0';
|
|
substitutename = php_win32_cp_conv_w_to_any(tmpsubstname, substitutename_len, &substitutename_len);
|
|
if (!substitutename || substitutename_len >= MAXPATHLEN) {
|
|
free_alloca(pbuffer, use_heap_large);
|
|
free_alloca(tmp, use_heap);
|
|
free(substitutename);
|
|
#if VIRTUAL_CWD_DEBUG
|
|
free(printname);
|
|
#endif
|
|
FREE_PATHW()
|
|
return -1;
|
|
}
|
|
}
|
|
else if(pbuffer->ReparseTag == IO_REPARSE_TAG_MOUNT_POINT) {
|
|
isabsolute = 1;
|
|
reparsetarget = pbuffer->MountPointReparseBuffer.ReparseTarget;
|
|
#if VIRTUAL_CWD_DEBUG
|
|
printname = php_win32_ioutil_w_to_any(reparsetarget + pbuffer->MountPointReparseBuffer.PrintNameOffset / sizeof(WCHAR));
|
|
if (!printname) {
|
|
free_alloca(pbuffer, use_heap_large);
|
|
free_alloca(tmp, use_heap);
|
|
FREE_PATHW()
|
|
return -1;
|
|
}
|
|
#endif
|
|
|
|
|
|
substitutename_len = pbuffer->MountPointReparseBuffer.SubstituteNameLength / sizeof(WCHAR);
|
|
if (substitutename_len >= MAXPATHLEN) {
|
|
free_alloca(pbuffer, use_heap_large);
|
|
free_alloca(tmp, use_heap);
|
|
FREE_PATHW()
|
|
return -1;
|
|
}
|
|
memmove(tmpsubstname, reparsetarget + pbuffer->MountPointReparseBuffer.SubstituteNameOffset / sizeof(WCHAR), pbuffer->MountPointReparseBuffer.SubstituteNameLength);
|
|
tmpsubstname[substitutename_len] = L'\0';
|
|
substitutename = php_win32_cp_conv_w_to_any(tmpsubstname, substitutename_len, &substitutename_len);
|
|
if (!substitutename || substitutename_len >= MAXPATHLEN) {
|
|
free_alloca(pbuffer, use_heap_large);
|
|
free_alloca(tmp, use_heap);
|
|
free(substitutename);
|
|
#if VIRTUAL_CWD_DEBUG
|
|
free(printname);
|
|
#endif
|
|
FREE_PATHW()
|
|
return -1;
|
|
}
|
|
}
|
|
else if (pbuffer->ReparseTag == IO_REPARSE_TAG_DEDUP ||
|
|
/* Starting with 1709. */
|
|
(pbuffer->ReparseTag & ~IO_REPARSE_TAG_CLOUD_MASK) == IO_REPARSE_TAG_CLOUD ||
|
|
IO_REPARSE_TAG_ONEDRIVE == pbuffer->ReparseTag) {
|
|
isabsolute = 1;
|
|
substitutename = malloc((len + 1) * sizeof(char));
|
|
if (!substitutename) {
|
|
free_alloca(pbuffer, use_heap_large);
|
|
free_alloca(tmp, use_heap);
|
|
FREE_PATHW()
|
|
return -1;
|
|
}
|
|
memcpy(substitutename, path, len + 1);
|
|
substitutename_len = len;
|
|
} else {
|
|
/* XXX this might be not the end, restart handling with REPARSE_GUID_DATA_BUFFER should be implemented. */
|
|
free_alloca(pbuffer, use_heap_large);
|
|
free_alloca(tmp, use_heap);
|
|
FREE_PATHW()
|
|
return -1;
|
|
}
|
|
|
|
if(isabsolute && substitutename_len > 4) {
|
|
/* Do not resolve volumes (for now). A mounted point can
|
|
target a volume without a drive, it is not certain that
|
|
all IO functions we use in php and its deps support
|
|
path with volume GUID instead of the DOS way, like:
|
|
d:\test\mnt\foo
|
|
\\?\Volume{62d1c3f8-83b9-11de-b108-806e6f6e6963}\foo
|
|
*/
|
|
if (strncmp(substitutename, "\\??\\Volume{",11) == 0
|
|
|| strncmp(substitutename, "\\\\?\\Volume{",11) == 0
|
|
|| strncmp(substitutename, "\\??\\UNC\\", 8) == 0
|
|
) {
|
|
isVolume = TRUE;
|
|
substitutename_off = 0;
|
|
} else
|
|
/* do not use the \??\ and \\?\ prefix*/
|
|
if (strncmp(substitutename, "\\??\\", 4) == 0
|
|
|| strncmp(substitutename, "\\\\?\\", 4) == 0) {
|
|
substitutename_off = 4;
|
|
}
|
|
}
|
|
|
|
if (!isVolume) {
|
|
char * tmp2 = substitutename + substitutename_off;
|
|
for(bufindex = 0; bufindex < (substitutename_len - substitutename_off); bufindex++) {
|
|
*(path + bufindex) = *(tmp2 + bufindex);
|
|
}
|
|
|
|
*(path + bufindex) = 0;
|
|
j = bufindex;
|
|
} else {
|
|
j = len;
|
|
}
|
|
|
|
|
|
#if VIRTUAL_CWD_DEBUG
|
|
fprintf(stderr, "reparse: print: %s ", printname);
|
|
fprintf(stderr, "sub: %s ", substitutename);
|
|
fprintf(stderr, "resolved: %s ", path);
|
|
free(printname);
|
|
#endif
|
|
free_alloca(pbuffer, use_heap_large);
|
|
free(substitutename);
|
|
|
|
if(isabsolute == 1) {
|
|
if (!((j == 3) && (path[1] == ':') && (path[2] == '\\'))) {
|
|
/* use_realpath is 0 in the call below coz path is absolute*/
|
|
j = tsrm_realpath_r(path, 0, j, ll, t, 0, is_dir, &directory);
|
|
if(j < 0) {
|
|
free_alloca(tmp, use_heap);
|
|
FREE_PATHW()
|
|
return -1;
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
if(i + j >= MAXPATHLEN - 1) {
|
|
free_alloca(tmp, use_heap);
|
|
FREE_PATHW()
|
|
return -1;
|
|
}
|
|
|
|
memmove(path+i, path, j+1);
|
|
memcpy(path, tmp, i-1);
|
|
path[i-1] = DEFAULT_SLASH;
|
|
j = tsrm_realpath_r(path, start, i + j, ll, t, use_realpath, is_dir, &directory);
|
|
if(j < 0) {
|
|
free_alloca(tmp, use_heap);
|
|
FREE_PATHW()
|
|
return -1;
|
|
}
|
|
}
|
|
directory = (dataw.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY);
|
|
|
|
if(link_is_dir) {
|
|
*link_is_dir = directory;
|
|
}
|
|
}
|
|
else {
|
|
if (save) {
|
|
directory = (dataw.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0;
|
|
if (is_dir && !directory) {
|
|
/* not a directory */
|
|
free_alloca(tmp, use_heap);
|
|
FREE_PATHW()
|
|
return -1;
|
|
}
|
|
}
|
|
#else
|
|
if (save && php_sys_lstat(path, &st) < 0) {
|
|
if (use_realpath == CWD_REALPATH) {
|
|
/* file not found */
|
|
return -1;
|
|
}
|
|
/* continue resolution anyway but don't save result in the cache */
|
|
save = 0;
|
|
}
|
|
|
|
tmp = do_alloca(len+1, use_heap);
|
|
memcpy(tmp, path, len+1);
|
|
|
|
if (save && S_ISLNK(st.st_mode)) {
|
|
if (++(*ll) > LINK_MAX || (j = php_sys_readlink(tmp, path, MAXPATHLEN)) < 0) {
|
|
/* too many links or broken symlinks */
|
|
free_alloca(tmp, use_heap);
|
|
return -1;
|
|
}
|
|
path[j] = 0;
|
|
if (IS_ABSOLUTE_PATH(path, j)) {
|
|
j = tsrm_realpath_r(path, 1, j, ll, t, use_realpath, is_dir, &directory);
|
|
if (j < 0) {
|
|
free_alloca(tmp, use_heap);
|
|
return -1;
|
|
}
|
|
} else {
|
|
if (i + j >= MAXPATHLEN-1) {
|
|
free_alloca(tmp, use_heap);
|
|
return -1; /* buffer overflow */
|
|
}
|
|
memmove(path+i, path, j+1);
|
|
memcpy(path, tmp, i-1);
|
|
path[i-1] = DEFAULT_SLASH;
|
|
j = tsrm_realpath_r(path, start, i + j, ll, t, use_realpath, is_dir, &directory);
|
|
if (j < 0) {
|
|
free_alloca(tmp, use_heap);
|
|
return -1;
|
|
}
|
|
}
|
|
if (link_is_dir) {
|
|
*link_is_dir = directory;
|
|
}
|
|
} else {
|
|
if (save) {
|
|
directory = S_ISDIR(st.st_mode);
|
|
if (link_is_dir) {
|
|
*link_is_dir = directory;
|
|
}
|
|
if (is_dir && !directory) {
|
|
/* not a directory */
|
|
free_alloca(tmp, use_heap);
|
|
return -1;
|
|
}
|
|
}
|
|
#endif
|
|
if (i - 1 <= start) {
|
|
j = start;
|
|
} else {
|
|
/* some leading directories may be unaccessable */
|
|
j = tsrm_realpath_r(path, start, i-1, ll, t, save ? CWD_FILEPATH : use_realpath, 1, NULL);
|
|
if (j > start) {
|
|
path[j++] = DEFAULT_SLASH;
|
|
}
|
|
}
|
|
#ifdef ZEND_WIN32
|
|
if (j < 0 || j + len - i >= MAXPATHLEN-1) {
|
|
free_alloca(tmp, use_heap);
|
|
FREE_PATHW()
|
|
return -1;
|
|
}
|
|
if (save) {
|
|
size_t sz;
|
|
char *tmp_path = php_win32_ioutil_conv_w_to_any(dataw.cFileName, PHP_WIN32_CP_IGNORE_LEN, &sz);
|
|
if (!tmp_path) {
|
|
free_alloca(tmp, use_heap);
|
|
FREE_PATHW()
|
|
return -1;
|
|
}
|
|
i = (int)sz;
|
|
memcpy(path+j, tmp_path, i+1);
|
|
free(tmp_path);
|
|
j += i;
|
|
} else {
|
|
/* use the original file or directory name as it wasn't found */
|
|
memcpy(path+j, tmp+i, len-i+1);
|
|
j += (len-i);
|
|
}
|
|
}
|
|
#else
|
|
if (j < 0 || j + len - i >= MAXPATHLEN-1) {
|
|
free_alloca(tmp, use_heap);
|
|
return -1;
|
|
}
|
|
memcpy(path+j, tmp+i, len-i+1);
|
|
j += (len-i);
|
|
}
|
|
#endif
|
|
|
|
if (save && start && CWDG(realpath_cache_size_limit)) {
|
|
/* save absolute path in the cache */
|
|
realpath_cache_add(tmp, len, path, j, directory, *t);
|
|
}
|
|
|
|
free_alloca(tmp, use_heap);
|
|
#ifdef ZEND_WIN32
|
|
FREE_PATHW()
|
|
#undef FREE_PATHW
|
|
#endif
|
|
return j;
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
/* Resolve path relatively to state and put the real path into state */
|
|
/* returns 0 for ok, 1 for error */
|
|
CWD_API int virtual_file_ex(cwd_state *state, const char *path, verify_path_func verify_path, int use_realpath) /* {{{ */
|
|
{
|
|
int path_length = (int)strlen(path);
|
|
char resolved_path[MAXPATHLEN];
|
|
int start = 1;
|
|
int ll = 0;
|
|
time_t t;
|
|
int ret;
|
|
int add_slash;
|
|
void *tmp;
|
|
|
|
if (path_length <= 0 || path_length >= MAXPATHLEN-1) {
|
|
#ifdef ZEND_WIN32
|
|
_set_errno(EINVAL);
|
|
#else
|
|
errno = EINVAL;
|
|
#endif
|
|
return 1;
|
|
}
|
|
|
|
#if VIRTUAL_CWD_DEBUG
|
|
fprintf(stderr,"cwd = %s path = %s\n", state->cwd, path);
|
|
#endif
|
|
|
|
/* cwd_length can be 0 when getcwd() fails.
|
|
* This can happen under solaris when a dir does not have read permissions
|
|
* but *does* have execute permissions */
|
|
if (!IS_ABSOLUTE_PATH(path, path_length)) {
|
|
if (state->cwd_length == 0) {
|
|
/* resolve relative path */
|
|
start = 0;
|
|
memcpy(resolved_path , path, path_length + 1);
|
|
} else {
|
|
int state_cwd_length = state->cwd_length;
|
|
|
|
#ifdef ZEND_WIN32
|
|
if (IS_SLASH(path[0])) {
|
|
if (state->cwd[1] == ':') {
|
|
/* Copy only the drive name */
|
|
state_cwd_length = 2;
|
|
} else if (IS_UNC_PATH(state->cwd, state->cwd_length)) {
|
|
/* Copy only the share name */
|
|
state_cwd_length = 2;
|
|
while (IS_SLASH(state->cwd[state_cwd_length])) {
|
|
state_cwd_length++;
|
|
}
|
|
while (state->cwd[state_cwd_length] &&
|
|
!IS_SLASH(state->cwd[state_cwd_length])) {
|
|
state_cwd_length++;
|
|
}
|
|
while (IS_SLASH(state->cwd[state_cwd_length])) {
|
|
state_cwd_length++;
|
|
}
|
|
while (state->cwd[state_cwd_length] &&
|
|
!IS_SLASH(state->cwd[state_cwd_length])) {
|
|
state_cwd_length++;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
if (path_length + state_cwd_length + 1 >= MAXPATHLEN-1) {
|
|
return 1;
|
|
}
|
|
memcpy(resolved_path, state->cwd, state_cwd_length);
|
|
if (resolved_path[state_cwd_length-1] == DEFAULT_SLASH) {
|
|
memcpy(resolved_path + state_cwd_length, path, path_length + 1);
|
|
path_length += state_cwd_length;
|
|
} else {
|
|
resolved_path[state_cwd_length] = DEFAULT_SLASH;
|
|
memcpy(resolved_path + state_cwd_length + 1, path, path_length + 1);
|
|
path_length += state_cwd_length + 1;
|
|
}
|
|
}
|
|
} else {
|
|
#ifdef ZEND_WIN32
|
|
if (path_length > 2 && path[1] == ':' && !IS_SLASH(path[2])) {
|
|
resolved_path[0] = path[0];
|
|
resolved_path[1] = ':';
|
|
resolved_path[2] = DEFAULT_SLASH;
|
|
memcpy(resolved_path + 3, path + 2, path_length - 1);
|
|
path_length++;
|
|
} else
|
|
#endif
|
|
memcpy(resolved_path, path, path_length + 1);
|
|
}
|
|
|
|
#ifdef ZEND_WIN32
|
|
if (memchr(resolved_path, '*', path_length) ||
|
|
memchr(resolved_path, '?', path_length)) {
|
|
return 1;
|
|
}
|
|
#endif
|
|
|
|
#ifdef ZEND_WIN32
|
|
if (IS_UNC_PATH(resolved_path, path_length)) {
|
|
/* skip UNC name */
|
|
resolved_path[0] = DEFAULT_SLASH;
|
|
resolved_path[1] = DEFAULT_SLASH;
|
|
start = 2;
|
|
while (!IS_SLASH(resolved_path[start])) {
|
|
if (resolved_path[start] == 0) {
|
|
goto verify;
|
|
}
|
|
resolved_path[start] = toupper(resolved_path[start]);
|
|
start++;
|
|
}
|
|
resolved_path[start++] = DEFAULT_SLASH;
|
|
while (!IS_SLASH(resolved_path[start])) {
|
|
if (resolved_path[start] == 0) {
|
|
goto verify;
|
|
}
|
|
resolved_path[start] = toupper(resolved_path[start]);
|
|
start++;
|
|
}
|
|
resolved_path[start++] = DEFAULT_SLASH;
|
|
} else if (IS_ABSOLUTE_PATH(resolved_path, path_length)) {
|
|
/* skip DRIVE name */
|
|
resolved_path[0] = toupper(resolved_path[0]);
|
|
resolved_path[2] = DEFAULT_SLASH;
|
|
start = 3;
|
|
}
|
|
#endif
|
|
|
|
add_slash = (use_realpath != CWD_REALPATH) && path_length > 0 && IS_SLASH(resolved_path[path_length-1]);
|
|
t = CWDG(realpath_cache_ttl) ? 0 : -1;
|
|
path_length = tsrm_realpath_r(resolved_path, start, path_length, &ll, &t, use_realpath, 0, NULL);
|
|
|
|
if (path_length < 0) {
|
|
errno = ENOENT;
|
|
return 1;
|
|
}
|
|
|
|
if (!start && !path_length) {
|
|
resolved_path[path_length++] = '.';
|
|
}
|
|
if (add_slash && path_length && !IS_SLASH(resolved_path[path_length-1])) {
|
|
if (path_length >= MAXPATHLEN-1) {
|
|
return -1;
|
|
}
|
|
resolved_path[path_length++] = DEFAULT_SLASH;
|
|
}
|
|
resolved_path[path_length] = 0;
|
|
|
|
#ifdef ZEND_WIN32
|
|
verify:
|
|
#endif
|
|
if (verify_path) {
|
|
cwd_state old_state;
|
|
|
|
CWD_STATE_COPY(&old_state, state);
|
|
state->cwd_length = path_length;
|
|
|
|
tmp = erealloc(state->cwd, state->cwd_length+1);
|
|
state->cwd = (char *) tmp;
|
|
|
|
memcpy(state->cwd, resolved_path, state->cwd_length+1);
|
|
if (verify_path(state)) {
|
|
CWD_STATE_FREE(state);
|
|
*state = old_state;
|
|
ret = 1;
|
|
} else {
|
|
CWD_STATE_FREE(&old_state);
|
|
ret = 0;
|
|
}
|
|
} else {
|
|
state->cwd_length = path_length;
|
|
tmp = erealloc(state->cwd, state->cwd_length+1);
|
|
state->cwd = (char *) tmp;
|
|
|
|
memcpy(state->cwd, resolved_path, state->cwd_length+1);
|
|
ret = 0;
|
|
}
|
|
|
|
#if VIRTUAL_CWD_DEBUG
|
|
fprintf (stderr, "virtual_file_ex() = %s\n",state->cwd);
|
|
#endif
|
|
return (ret);
|
|
}
|
|
/* }}} */
|
|
|
|
CWD_API int virtual_chdir(const char *path) /* {{{ */
|
|
{
|
|
return virtual_file_ex(&CWDG(cwd), path, php_is_dir_ok, CWD_REALPATH)?-1:0;
|
|
}
|
|
/* }}} */
|
|
|
|
CWD_API int virtual_chdir_file(const char *path, int (*p_chdir)(const char *path)) /* {{{ */
|
|
{
|
|
int length = (int)strlen(path);
|
|
char *temp;
|
|
int retval;
|
|
ALLOCA_FLAG(use_heap)
|
|
|
|
if (length == 0) {
|
|
return 1; /* Can't cd to empty string */
|
|
}
|
|
while(--length >= 0 && !IS_SLASH(path[length])) {
|
|
}
|
|
|
|
if (length == -1) {
|
|
/* No directory only file name */
|
|
errno = ENOENT;
|
|
return -1;
|
|
}
|
|
|
|
if (length == COPY_WHEN_ABSOLUTE(path) && IS_ABSOLUTE_PATH(path, length+1)) { /* Also use trailing slash if this is absolute */
|
|
length++;
|
|
}
|
|
temp = (char *) do_alloca(length+1, use_heap);
|
|
memcpy(temp, path, length);
|
|
temp[length] = 0;
|
|
#if VIRTUAL_CWD_DEBUG
|
|
fprintf (stderr, "Changing directory to %s\n", temp);
|
|
#endif
|
|
retval = p_chdir(temp);
|
|
free_alloca(temp, use_heap);
|
|
return retval;
|
|
}
|
|
/* }}} */
|
|
|
|
CWD_API char *virtual_realpath(const char *path, char *real_path) /* {{{ */
|
|
{
|
|
cwd_state new_state;
|
|
char *retval;
|
|
char cwd[MAXPATHLEN];
|
|
|
|
/* realpath("") returns CWD */
|
|
if (!*path) {
|
|
new_state.cwd = (char*)emalloc(1);
|
|
new_state.cwd[0] = '\0';
|
|
new_state.cwd_length = 0;
|
|
if (VCWD_GETCWD(cwd, MAXPATHLEN)) {
|
|
path = cwd;
|
|
}
|
|
} else if (!IS_ABSOLUTE_PATH(path, strlen(path))) {
|
|
CWD_STATE_COPY(&new_state, &CWDG(cwd));
|
|
} else {
|
|
new_state.cwd = (char*)emalloc(1);
|
|
new_state.cwd[0] = '\0';
|
|
new_state.cwd_length = 0;
|
|
}
|
|
|
|
if (virtual_file_ex(&new_state, path, NULL, CWD_REALPATH)==0) {
|
|
int len = new_state.cwd_length>MAXPATHLEN-1?MAXPATHLEN-1:new_state.cwd_length;
|
|
|
|
memcpy(real_path, new_state.cwd, len);
|
|
real_path[len] = '\0';
|
|
retval = real_path;
|
|
} else {
|
|
retval = NULL;
|
|
}
|
|
|
|
CWD_STATE_FREE(&new_state);
|
|
return retval;
|
|
}
|
|
/* }}} */
|
|
|
|
CWD_API int virtual_filepath_ex(const char *path, char **filepath, verify_path_func verify_path) /* {{{ */
|
|
{
|
|
cwd_state new_state;
|
|
int retval;
|
|
|
|
CWD_STATE_COPY(&new_state, &CWDG(cwd));
|
|
retval = virtual_file_ex(&new_state, path, verify_path, CWD_FILEPATH);
|
|
|
|
*filepath = new_state.cwd;
|
|
|
|
return retval;
|
|
|
|
}
|
|
/* }}} */
|
|
|
|
CWD_API int virtual_filepath(const char *path, char **filepath) /* {{{ */
|
|
{
|
|
return virtual_filepath_ex(path, filepath, php_is_file_ok);
|
|
}
|
|
/* }}} */
|
|
|
|
CWD_API FILE *virtual_fopen(const char *path, const char *mode) /* {{{ */
|
|
{
|
|
cwd_state new_state;
|
|
FILE *f;
|
|
|
|
if (path[0] == '\0') { /* Fail to open empty path */
|
|
return NULL;
|
|
}
|
|
|
|
CWD_STATE_COPY(&new_state, &CWDG(cwd));
|
|
if (virtual_file_ex(&new_state, path, NULL, CWD_EXPAND)) {
|
|
CWD_STATE_FREE_ERR(&new_state);
|
|
return NULL;
|
|
}
|
|
|
|
#ifdef ZEND_WIN32
|
|
f = php_win32_ioutil_fopen(new_state.cwd, mode);
|
|
#else
|
|
f = fopen(new_state.cwd, mode);
|
|
#endif
|
|
|
|
CWD_STATE_FREE_ERR(&new_state);
|
|
|
|
return f;
|
|
}
|
|
/* }}} */
|
|
|
|
CWD_API int virtual_access(const char *pathname, int mode) /* {{{ */
|
|
{
|
|
cwd_state new_state;
|
|
int ret;
|
|
|
|
CWD_STATE_COPY(&new_state, &CWDG(cwd));
|
|
if (virtual_file_ex(&new_state, pathname, NULL, CWD_REALPATH)) {
|
|
CWD_STATE_FREE_ERR(&new_state);
|
|
return -1;
|
|
}
|
|
|
|
#if defined(ZEND_WIN32)
|
|
ret = tsrm_win32_access(new_state.cwd, mode);
|
|
#else
|
|
ret = access(new_state.cwd, mode);
|
|
#endif
|
|
|
|
CWD_STATE_FREE_ERR(&new_state);
|
|
|
|
return ret;
|
|
}
|
|
/* }}} */
|
|
|
|
#if HAVE_UTIME
|
|
CWD_API int virtual_utime(const char *filename, struct utimbuf *buf) /* {{{ */
|
|
{
|
|
cwd_state new_state;
|
|
int ret;
|
|
|
|
CWD_STATE_COPY(&new_state, &CWDG(cwd));
|
|
if (virtual_file_ex(&new_state, filename, NULL, CWD_REALPATH)) {
|
|
CWD_STATE_FREE_ERR(&new_state);
|
|
return -1;
|
|
}
|
|
|
|
#ifdef ZEND_WIN32
|
|
ret = win32_utime(new_state.cwd, buf);
|
|
#else
|
|
ret = utime(new_state.cwd, buf);
|
|
#endif
|
|
|
|
CWD_STATE_FREE_ERR(&new_state);
|
|
return ret;
|
|
}
|
|
/* }}} */
|
|
#endif
|
|
|
|
CWD_API int virtual_chmod(const char *filename, mode_t mode) /* {{{ */
|
|
{
|
|
cwd_state new_state;
|
|
int ret;
|
|
|
|
CWD_STATE_COPY(&new_state, &CWDG(cwd));
|
|
if (virtual_file_ex(&new_state, filename, NULL, CWD_REALPATH)) {
|
|
CWD_STATE_FREE_ERR(&new_state);
|
|
return -1;
|
|
}
|
|
|
|
#ifdef ZEND_WIN32
|
|
{
|
|
mode_t _tmp = mode;
|
|
|
|
mode = 0;
|
|
|
|
if (_tmp & _S_IREAD) {
|
|
mode |= _S_IREAD;
|
|
}
|
|
if (_tmp & _S_IWRITE) {
|
|
mode |= _S_IWRITE;
|
|
}
|
|
ret = php_win32_ioutil_chmod(new_state.cwd, mode);
|
|
}
|
|
#else
|
|
ret = chmod(new_state.cwd, mode);
|
|
#endif
|
|
|
|
CWD_STATE_FREE_ERR(&new_state);
|
|
return ret;
|
|
}
|
|
/* }}} */
|
|
|
|
#if !defined(ZEND_WIN32)
|
|
CWD_API int virtual_chown(const char *filename, uid_t owner, gid_t group, int link) /* {{{ */
|
|
{
|
|
cwd_state new_state;
|
|
int ret;
|
|
|
|
CWD_STATE_COPY(&new_state, &CWDG(cwd));
|
|
if (virtual_file_ex(&new_state, filename, NULL, CWD_REALPATH)) {
|
|
CWD_STATE_FREE_ERR(&new_state);
|
|
return -1;
|
|
}
|
|
|
|
if (link) {
|
|
#if HAVE_LCHOWN
|
|
ret = lchown(new_state.cwd, owner, group);
|
|
#else
|
|
ret = -1;
|
|
#endif
|
|
} else {
|
|
ret = chown(new_state.cwd, owner, group);
|
|
}
|
|
|
|
CWD_STATE_FREE_ERR(&new_state);
|
|
return ret;
|
|
}
|
|
/* }}} */
|
|
#endif
|
|
|
|
CWD_API int virtual_open(const char *path, int flags, ...) /* {{{ */
|
|
{
|
|
cwd_state new_state;
|
|
int f;
|
|
|
|
CWD_STATE_COPY(&new_state, &CWDG(cwd));
|
|
if (virtual_file_ex(&new_state, path, NULL, CWD_FILEPATH)) {
|
|
CWD_STATE_FREE_ERR(&new_state);
|
|
return -1;
|
|
}
|
|
|
|
if (flags & O_CREAT) {
|
|
mode_t mode;
|
|
va_list arg;
|
|
|
|
va_start(arg, flags);
|
|
mode = (mode_t) va_arg(arg, int);
|
|
va_end(arg);
|
|
|
|
#ifdef ZEND_WIN32
|
|
f = php_win32_ioutil_open(new_state.cwd, flags, mode);
|
|
#else
|
|
f = open(new_state.cwd, flags, mode);
|
|
#endif
|
|
} else {
|
|
#ifdef ZEND_WIN32
|
|
f = php_win32_ioutil_open(new_state.cwd, flags);
|
|
#else
|
|
f = open(new_state.cwd, flags);
|
|
#endif
|
|
}
|
|
CWD_STATE_FREE_ERR(&new_state);
|
|
return f;
|
|
}
|
|
/* }}} */
|
|
|
|
CWD_API int virtual_creat(const char *path, mode_t mode) /* {{{ */
|
|
{
|
|
cwd_state new_state;
|
|
int f;
|
|
|
|
CWD_STATE_COPY(&new_state, &CWDG(cwd));
|
|
if (virtual_file_ex(&new_state, path, NULL, CWD_FILEPATH)) {
|
|
CWD_STATE_FREE_ERR(&new_state);
|
|
return -1;
|
|
}
|
|
|
|
f = creat(new_state.cwd, mode);
|
|
|
|
CWD_STATE_FREE_ERR(&new_state);
|
|
return f;
|
|
}
|
|
/* }}} */
|
|
|
|
CWD_API int virtual_rename(const char *oldname, const char *newname) /* {{{ */
|
|
{
|
|
cwd_state old_state;
|
|
cwd_state new_state;
|
|
int retval;
|
|
|
|
CWD_STATE_COPY(&old_state, &CWDG(cwd));
|
|
if (virtual_file_ex(&old_state, oldname, NULL, CWD_EXPAND)) {
|
|
CWD_STATE_FREE_ERR(&old_state);
|
|
return -1;
|
|
}
|
|
oldname = old_state.cwd;
|
|
|
|
CWD_STATE_COPY(&new_state, &CWDG(cwd));
|
|
if (virtual_file_ex(&new_state, newname, NULL, CWD_EXPAND)) {
|
|
CWD_STATE_FREE_ERR(&old_state);
|
|
CWD_STATE_FREE_ERR(&new_state);
|
|
return -1;
|
|
}
|
|
newname = new_state.cwd;
|
|
|
|
/* rename on windows will fail if newname already exists.
|
|
MoveFileEx has to be used */
|
|
#ifdef ZEND_WIN32
|
|
/* MoveFileEx returns 0 on failure, other way 'round for this function */
|
|
retval = php_win32_ioutil_rename(oldname, newname);
|
|
#else
|
|
retval = rename(oldname, newname);
|
|
#endif
|
|
|
|
CWD_STATE_FREE_ERR(&old_state);
|
|
CWD_STATE_FREE_ERR(&new_state);
|
|
|
|
return retval;
|
|
}
|
|
/* }}} */
|
|
|
|
CWD_API int virtual_stat(const char *path, zend_stat_t *buf) /* {{{ */
|
|
{
|
|
cwd_state new_state;
|
|
int retval;
|
|
|
|
CWD_STATE_COPY(&new_state, &CWDG(cwd));
|
|
if (virtual_file_ex(&new_state, path, NULL, CWD_REALPATH)) {
|
|
CWD_STATE_FREE_ERR(&new_state);
|
|
return -1;
|
|
}
|
|
|
|
retval = php_sys_stat(new_state.cwd, buf);
|
|
|
|
CWD_STATE_FREE_ERR(&new_state);
|
|
return retval;
|
|
}
|
|
/* }}} */
|
|
|
|
CWD_API int virtual_lstat(const char *path, zend_stat_t *buf) /* {{{ */
|
|
{
|
|
cwd_state new_state;
|
|
int retval;
|
|
|
|
CWD_STATE_COPY(&new_state, &CWDG(cwd));
|
|
if (virtual_file_ex(&new_state, path, NULL, CWD_EXPAND)) {
|
|
CWD_STATE_FREE_ERR(&new_state);
|
|
return -1;
|
|
}
|
|
|
|
retval = php_sys_lstat(new_state.cwd, buf);
|
|
|
|
CWD_STATE_FREE_ERR(&new_state);
|
|
return retval;
|
|
}
|
|
/* }}} */
|
|
|
|
CWD_API int virtual_unlink(const char *path) /* {{{ */
|
|
{
|
|
cwd_state new_state;
|
|
int retval;
|
|
|
|
CWD_STATE_COPY(&new_state, &CWDG(cwd));
|
|
if (virtual_file_ex(&new_state, path, NULL, CWD_EXPAND)) {
|
|
CWD_STATE_FREE_ERR(&new_state);
|
|
return -1;
|
|
}
|
|
|
|
#ifdef ZEND_WIN32
|
|
retval = php_win32_ioutil_unlink(new_state.cwd);
|
|
#else
|
|
retval = unlink(new_state.cwd);
|
|
#endif
|
|
|
|
CWD_STATE_FREE_ERR(&new_state);
|
|
return retval;
|
|
}
|
|
/* }}} */
|
|
|
|
CWD_API int virtual_mkdir(const char *pathname, mode_t mode) /* {{{ */
|
|
{
|
|
cwd_state new_state;
|
|
int retval;
|
|
|
|
CWD_STATE_COPY(&new_state, &CWDG(cwd));
|
|
if (virtual_file_ex(&new_state, pathname, NULL, CWD_FILEPATH)) {
|
|
CWD_STATE_FREE_ERR(&new_state);
|
|
return -1;
|
|
}
|
|
|
|
#ifdef ZEND_WIN32
|
|
retval = php_win32_ioutil_mkdir(new_state.cwd, mode);
|
|
#else
|
|
retval = mkdir(new_state.cwd, mode);
|
|
#endif
|
|
CWD_STATE_FREE_ERR(&new_state);
|
|
return retval;
|
|
}
|
|
/* }}} */
|
|
|
|
CWD_API int virtual_rmdir(const char *pathname) /* {{{ */
|
|
{
|
|
cwd_state new_state;
|
|
int retval;
|
|
|
|
CWD_STATE_COPY(&new_state, &CWDG(cwd));
|
|
if (virtual_file_ex(&new_state, pathname, NULL, CWD_EXPAND)) {
|
|
CWD_STATE_FREE_ERR(&new_state);
|
|
return -1;
|
|
}
|
|
|
|
#ifdef ZEND_WIN32
|
|
retval = php_win32_ioutil_rmdir(new_state.cwd);
|
|
#else
|
|
retval = rmdir(new_state.cwd);
|
|
#endif
|
|
CWD_STATE_FREE_ERR(&new_state);
|
|
return retval;
|
|
}
|
|
/* }}} */
|
|
|
|
#ifdef ZEND_WIN32
|
|
DIR *opendir(const char *name);
|
|
#endif
|
|
|
|
CWD_API DIR *virtual_opendir(const char *pathname) /* {{{ */
|
|
{
|
|
cwd_state new_state;
|
|
DIR *retval;
|
|
|
|
CWD_STATE_COPY(&new_state, &CWDG(cwd));
|
|
if (virtual_file_ex(&new_state, pathname, NULL, CWD_REALPATH)) {
|
|
CWD_STATE_FREE_ERR(&new_state);
|
|
return NULL;
|
|
}
|
|
|
|
retval = opendir(new_state.cwd);
|
|
|
|
CWD_STATE_FREE_ERR(&new_state);
|
|
return retval;
|
|
}
|
|
/* }}} */
|
|
|
|
#ifdef ZEND_WIN32
|
|
CWD_API FILE *virtual_popen(const char *command, const char *type) /* {{{ */
|
|
{
|
|
return popen_ex(command, type, CWDG(cwd).cwd, NULL);
|
|
}
|
|
/* }}} */
|
|
#else /* Unix */
|
|
CWD_API FILE *virtual_popen(const char *command, const char *type) /* {{{ */
|
|
{
|
|
size_t command_length;
|
|
int dir_length, extra = 0;
|
|
char *command_line;
|
|
char *ptr, *dir;
|
|
FILE *retval;
|
|
|
|
command_length = strlen(command);
|
|
|
|
dir_length = CWDG(cwd).cwd_length;
|
|
dir = CWDG(cwd).cwd;
|
|
while (dir_length > 0) {
|
|
if (*dir == '\'') extra+=3;
|
|
dir++;
|
|
dir_length--;
|
|
}
|
|
dir_length = CWDG(cwd).cwd_length;
|
|
dir = CWDG(cwd).cwd;
|
|
|
|
ptr = command_line = (char *) emalloc(command_length + sizeof("cd '' ; ") + dir_length + extra+1+1);
|
|
memcpy(ptr, "cd ", sizeof("cd ")-1);
|
|
ptr += sizeof("cd ")-1;
|
|
|
|
if (CWDG(cwd).cwd_length == 0) {
|
|
*ptr++ = DEFAULT_SLASH;
|
|
} else {
|
|
*ptr++ = '\'';
|
|
while (dir_length > 0) {
|
|
switch (*dir) {
|
|
case '\'':
|
|
*ptr++ = '\'';
|
|
*ptr++ = '\\';
|
|
*ptr++ = '\'';
|
|
/* fall-through */
|
|
default:
|
|
*ptr++ = *dir;
|
|
}
|
|
dir++;
|
|
dir_length--;
|
|
}
|
|
*ptr++ = '\'';
|
|
}
|
|
|
|
*ptr++ = ' ';
|
|
*ptr++ = ';';
|
|
*ptr++ = ' ';
|
|
|
|
memcpy(ptr, command, command_length+1);
|
|
retval = popen(command_line, type);
|
|
|
|
efree(command_line);
|
|
return retval;
|
|
}
|
|
/* }}} */
|
|
#endif
|
|
|
|
CWD_API char *tsrm_realpath(const char *path, char *real_path) /* {{{ */
|
|
{
|
|
cwd_state new_state;
|
|
char cwd[MAXPATHLEN];
|
|
|
|
/* realpath("") returns CWD */
|
|
if (!*path) {
|
|
new_state.cwd = (char*)emalloc(1);
|
|
new_state.cwd[0] = '\0';
|
|
new_state.cwd_length = 0;
|
|
if (VCWD_GETCWD(cwd, MAXPATHLEN)) {
|
|
path = cwd;
|
|
}
|
|
} else if (!IS_ABSOLUTE_PATH(path, strlen(path)) &&
|
|
VCWD_GETCWD(cwd, MAXPATHLEN)) {
|
|
new_state.cwd = estrdup(cwd);
|
|
new_state.cwd_length = (int)strlen(cwd);
|
|
} else {
|
|
new_state.cwd = (char*)emalloc(1);
|
|
new_state.cwd[0] = '\0';
|
|
new_state.cwd_length = 0;
|
|
}
|
|
|
|
if (virtual_file_ex(&new_state, path, NULL, CWD_REALPATH)) {
|
|
efree(new_state.cwd);
|
|
return NULL;
|
|
}
|
|
|
|
if (real_path) {
|
|
int copy_len = new_state.cwd_length>MAXPATHLEN-1 ? MAXPATHLEN-1 : new_state.cwd_length;
|
|
memcpy(real_path, new_state.cwd, copy_len);
|
|
real_path[copy_len] = '\0';
|
|
efree(new_state.cwd);
|
|
return real_path;
|
|
} else {
|
|
return new_state.cwd;
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
/*
|
|
* Local variables:
|
|
* tab-width: 4
|
|
* c-basic-offset: 4
|
|
* End:
|
|
*/
|