Fix for #23069 (Windows sets readonly mode for temporary files in tempnam)

main/php_open_temporary_file.c

@@ -132,7 +132,10 @@ static int php_do_open_temporary_file(const char *path, const char *pfx, char **
 
 #ifdef PHP_WIN32
 	if (GetTempFileName(path, pfx, 0, opened_path)) {
-		fd = VCWD_OPEN(opened_path, open_flags);
+		/* Some versions of windows set the temp file to be read-only,
+		 * which means that opening it will fail... */
+		VCWD_CHMOD(opened_path, 0600);
+		fd = VCWD_OPEN_MODE(opened_path, open_flags, 0600);
 	}
 #elif defined(NETWARE)
 	/* Using standard mktemp() implementation for NetWare */