[php-src] Issue #14779: Trailing multi dots in filenames are ignored in Windows

Issue: https://github.com/php/php-src/issues/14779 Author: tsybot ### Description Additional dots ignored windows [Windows treats filenames with trailing dots in a special way](https://docs.microsoft.com/en-us/troubleshoot/windows-client/shell-experience/file-folder-name-whitespace-characters), namely that these are basically ignored by most APIs. But, anyway on windows we can create this files with prefix "\\\\?\\", for example: ``` ECHO 123> \\?\C:\app\flag.txt.... ``` Check file is created ``` C:\app>dir Volume in drive C has no label. Volume Serial Number is F6CA-D975 Directory of C:\app 07/03/2024 07:53 AM <DIR> . 06/23/2024 03:03 PM <DIR> .. 07/03/2024 07:53 AM 5 flag.txt.... ``` So file exists but realpath function not find it, and functions who use VCWD_REALPATH iside same not found it and open_basedir check can not passed because use VCWD_REALPATH ```php <?php var_dump(realpath("C:\\app\\flag.txt....")); var_dump(bindtextdomain('xxx', "C:\\app\\flag.txt....")); var_dump(file_get_contents("C:\\app\\flag.txt....")); ``` try to use "\\\\?\\" prefix ```php <?php var_dump(realpath("\\\\?\\C:\\app\\flag.txt....")); var_dump(bindtextdomain('xxx', "\\\\?\\C:\\app\\flag.txt....")); var_dump(file_get_contents("\\\\?\\C:\\app\\flag.txt....")); ``` Resulted in this output: ``` bool(false) bool(false) Warning: file_get_contents(C:\app\flag.txt....): Failed to open stream: No such file or directory in C:\app\test.php on line 3 bool(false) bool(false) bool(false) Warning: file_get_contents(\\?\C:\app\flag.txt....): Failed to open stream: No such file or directory in C:\app\test.php on line 3 bool(false) ``` But I expected this output instead: ``` string(19) "C:\app\flag.txt...." string(19) "C:\app\flag.txt...." string(3) "123" string(19) "C:\app\flag.txt...." string(19) "C:\app\flag.txt...." string(3) "123" ``` If we enable open_basedir and set it to C:\\app\\ it falied on open_basedir check with prefix "\\\\?\\" ```php <?php var_dump(file_get_contents("C:\\app\\flag.txt....")); var_dump(file_get_contents("\\\\?\\C:\\app\\flag.txt....")); ``` ``` Warning: file_get_contents(C:\app\flag.txt....): Failed to open stream: No such file or directory in C:\app\test.php on line 1 bool(false) Warning: file_get_contents(): open_basedir restriction in effect. File(\\?\C:\app\flag.txt....) is not within the allowed path(s): (C:\\app\\) in C:\app\test.php on line 2 Warning: file_get_contents(\\?\C:\app\flag.txt....): Failed to open stream: Operation not permitted in C:\app\test.php on line 2 bool(false) ``` All function who use open_basedir check fail to check if use "\\\\?\\" prefix, but if open_basedir not set functions: is_readable,file_exists,is_writable,filesize,fileatime .. maybe more - is working prefect with "\\\\?\\" prefix,, im not check all functions. Not working functions: realpath,file_get_contents,bindtextdomain,readfile,file ... maybe more [Fix GH-9227: Trailing dots and spaces in filenames are ignored](https://github.com/php/php-src/commit/a1f5c8a587ff6dfa309ccf34c1508a8977e77f82) this fix fixed only one dot after filename but not fixed a multi dots ### PHP Version PHP 8.3.6 ### Operating System Windows Server 2022