[Windows] Add support for handling network share paths.

1 files changed, 9 insertions, 2 deletions

diff --git a/drivers/windows/dir_access_windows.cpp b/drivers/windows/dir_access_windows.cpp
index 6cd21b5615..6f3bad12c1 100644
--- a/drivers/windows/dir_access_windows.cpp
+++ b/drivers/windows/dir_access_windows.cpp
@@ -165,8 +165,11 @@ Error DirAccessWindows::make_dir(String p_dir) {
 	bool success;
 	int err;
 
-	p_dir = "\\\\?\\" + p_dir; //done according to
-	// https://msdn.microsoft.com/en-us/library/windows/desktop/aa363855(v=vs.85).aspx
+	if (!p_dir.is_network_share_path()) {
+		p_dir = "\\\\?\\" + p_dir;
+		// Add "\\?\" to the path to extend max. path length past 248, if it's not a network share UNC path.
+		// See https://msdn.microsoft.com/en-us/library/windows/desktop/aa363855(v=vs.85).aspx
+	}
 
 	success = CreateDirectoryW((LPCWSTR)(p_dir.utf16().get_data()), nullptr);
 	err = GetLastError();
@@ -349,6 +352,10 @@ String DirAccessWindows::get_filesystem_type() const {
 	ERR_FAIL_COND_V(unit_end == -1, String());
 	String unit = path.substr(0, unit_end + 1) + "\\";
 
+	if (path.is_network_share_path()) {
+		return "Network Share";
+	}
+
 	WCHAR szVolumeName[100];
 	WCHAR szFileSystemName[10];
 	DWORD dwSerialNumber = 0;