winebuild: Fix a segmentation fault.

When 'winebuild' is called with no arguments, the make_c_identifier function is passed a null pointer, which is dereferenced and causes a segmentation fault. Signed-off-by: James Larrowe <larrowe.semaj11@gmail.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

winebuild: Fix a segmentation fault.
f97636bc · James Larrowe · Alexandre Julliard · 7f7c703e · f97636bc
Commit f97636bc authored Jan 12, 2019 by James Larrowe Committed by Alexandre Julliard Jan 14, 2019
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main.c tools/winebuild/main.c +1 -1

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--- a/tools/winebuild/main.c
+++ b/tools/winebuild/main.c
@@ -164,7 +164,7 @@ static void init_dll_name( DLLSPEC *spec )
        spec->dll_name = xstrdup( spec->file_name );
        if ((p = strrchr( spec->dll_name, '.' ))) *p = 0;
    }
-    spec->c_name = make_c_identifier( spec->dll_name );
+    if (spec->dll_name) spec->c_name = make_c_identifier( spec->dll_name );
 }

 /* set the dll subsystem */