The Windows HANDLE type, despite being a `void *', does not actually

[sgt/putty] / windows / window.c

diff --git a/windows/window.c b/windows/window.c
index 4855de5..d58111f 100644 (file)
--- a/windows/window.c
+++ b/windows/window.c
@@ -1964,11 +1964,11 @@ static LRESULT CALLBACK WndProc(HWND hwnd, UINT message,
                    sa.nLength = sizeof(sa);
                    sa.lpSecurityDescriptor = NULL;
                    sa.bInheritHandle = TRUE;
-                   filemap = CreateFileMapping((HANDLE) 0xFFFFFFFF,
+                   filemap = CreateFileMapping(INVALID_HANDLE_VALUE,
                                                &sa,
                                                PAGE_READWRITE,
                                                0, sizeof(Config), NULL);
-                   if (filemap) {
+                   if (filemap && filemap != INVALID_HANDLE_VALUE) {
                        p = (Config *) MapViewOfFile(filemap,
                                                     FILE_MAP_WRITE,
                                                     0, 0, sizeof(Config));