added warning when loading Supaplex demo that exceeds maximum demo size

diff --git a/src/game_sp/file.c b/src/game_sp/file.c
index bd1a0fa0833ac43be47f3bf8ee0bd262719d7d06..9fa3908a8dc8df1e50b6636a5a26e9b8a52ac467 100644 (file)
--- a/src/game_sp/file.c
+++ b/src/game_sp/file.c
@@ -257,6 +257,10 @@ static void LoadNativeLevelFromFileStream_SP(File *file, int width, int height,
        break;
     }
 
+    if (i >= SP_MAX_TAPE_LEN)
+      Error(ERR_WARN, "SP demo truncated: size exceeds maximum SP demo size %d",
+           SP_MAX_TAPE_LEN);
+
     native_sp_level.demo.length = i;
     native_sp_level.demo.is_available = (native_sp_level.demo.length > 0);
   }