Fix another out-of-bounds error

Monster trying to decide if a tin could cure stoning looking at a special or empty tin would do acidic(&mons[-1])
2019-12-29 16:31:51 +02:00
parent d7e3331129
commit 4c82594193
2 changed files with 3 additions and 0 deletions
--- a/src/muse.c
+++ b/src/muse.c
@@ -2313,6 +2313,8 @@ boolean tinok;
    if (obj->otyp != CORPSE && (obj->otyp != TIN || !tinok))
        return FALSE;
    /* corpse, or tin that mon can open */
+    if (obj->corpsenm == NON_PM) /* empty/special tin */
+        return FALSE;
    return (boolean) (obj->corpsenm == PM_LIZARD
                      || (acidic(&mons[obj->corpsenm])
                          && (obj->corpsenm != PM_GREEN_SLIME