Fix full-pathname for extraction with unc working directory on windows

Fix full-pathname for extraction with unc working directory on windows

diff --git a/libarchive/archive_write_disk_windows.c b/libarchive/archive_write_disk_windows.c
index 78eda4abc8d1bde5f9c03b9c007b66f858fb9387..a68db6e2b67502c8939f5b83de3dfb814ddb0cd1 100644 (file)
--- a/libarchive/archive_write_disk_windows.c
+++ b/libarchive/archive_write_disk_windows.c
@@ -474,6 +474,11 @@ permissive_name_w(struct archive_write_disk *a)
        {
                archive_wstrncpy(&(a->_name_data), wsp, l);
        }
+       else if (l > 2 && wsp[0] == L'\\' && wsp[1] == L'\\' && wsp[2] != L'\\')
+       {
+               archive_wstrncpy(&(a->_name_data), L"\\\\?\\UNC\\", 8);
+               archive_wstrncat(&(a->_name_data), wsp+2, l-2);
+       }
        else
        {
                archive_wstrncpy(&(a->_name_data), L"\\\\?\\", 4);