widl: Add null source pointer check for typelib writer.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=38964Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

widl: Add null source pointer check for typelib writer.
fe5bfa5b · Nikolay Sivov · Alexandre Julliard · fdf43b9b · fe5bfa5b
Commit fe5bfa5b authored Sep 23, 2020 by Nikolay Sivov Committed by Alexandre Julliard Sep 24, 2020
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write_msft.c tools/widl/write_msft.c +1 -0

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--- a/tools/widl/write_msft.c
+++ b/tools/widl/write_msft.c
@@ -2560,6 +2560,7 @@ static void set_lib_flags(msft_typelib_t *typelib)

 static void ctl2_write_segment(msft_typelib_t *typelib, int segment)
 {
+    if (typelib->typelib_segment_data[segment])
        put_data(typelib->typelib_segment_data[segment], typelib->typelib_segdir[segment].length);
 }