Brendan Shanks : include: Assert that the debug channel name will be null-terminated and is not too long.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 2c14e0777a8a3ec10078811d84ad0989f5aef962
URL:    https://gitlab.winehq.org/wine/wine/-/commit/2c14e0777a8a3ec10078811d84ad098...

Author: Brendan Shanks <bshanks(a)codeweavers.com>
Date:   Tue Dec 26 12:25:39 2023 -0800

include: Assert that the debug channel name will be null-terminated and is not too long.

---

 include/wine/debug.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/wine/debug.h b/include/wine/debug.h
index 86e008a1408..ce5e141ccb7 100644
--- a/include/wine/debug.h
+++ b/include/wine/debug.h
@@ -501,9 +501,11 @@ static inline const char *wine_dbgstr_variant( const VARIANT *v )
 #define WINE_ERR_ON(ch)            __WINE_IS_DEBUG_ON(_ERR,&__wine_dbch_##ch)
 
 #define WINE_DECLARE_DEBUG_CHANNEL(ch) \
-    static struct __wine_debug_channel __wine_dbch_##ch = { 0xff, #ch }
+    static struct __wine_debug_channel __wine_dbch_##ch = { 0xff, #ch }; \
+    C_ASSERT(sizeof(#ch) <= sizeof(__wine_dbch_##ch.name))
 #define WINE_DEFAULT_DEBUG_CHANNEL(ch) \
     static struct __wine_debug_channel __wine_dbch_##ch = { 0xff, #ch }; \
+    C_ASSERT(sizeof(#ch) <= sizeof(__wine_dbch_##ch.name)); \
     static struct __wine_debug_channel * const __wine_dbch___default = &__wine_dbch_##ch
 
 #define WINE_MESSAGE               wine_dbg_printf