Fixed FileSetFilePointer warnings

diff --git a/winpr/libwinpr/file/file.c b/winpr/libwinpr/file/file.c
index 13fe27d..1fcd65b 100644 (file)
--- a/winpr/libwinpr/file/file.c
+++ b/winpr/libwinpr/file/file.c
@@ -128,9 +128,11 @@ static DWORD FileSetFilePointer(HANDLE hFile, LONG lDistanceToMove,
        if (!hFile)
                return INVALID_SET_FILE_POINTER;
 
+       /* If there is a high part, the sign is contained in that
+        * and the low integer must be interpreted as unsigned. */
        if (lpDistanceToMoveHigh)
        {
-               offset = (*lpDistanceToMoveHigh << 32) | (UINT32)lDistanceToMove;
+               offset = (INT64)(((UINT64)*lpDistanceToMoveHigh << 32U) | (UINT64)lDistanceToMove);
        }
        else
                 offset = lDistanceToMove;