diff options
| -rw-r--r-- | palisade.c | 7 |
1 files changed, 5 insertions, 2 deletions
@@ -17,6 +17,7 @@ #include <assert.h> #include <ctype.h> +#include <limits.h> #include <stdarg.h> #include <stdio.h> #include <stdlib.h> @@ -156,13 +157,15 @@ static game_params *custom_params(const config_item *cfg) static const char *validate_params(const game_params *params, bool full) { - int w = params->w, h = params->h, k = params->k, wh = w * h; + int w = params->w, h = params->h, k = params->k, wh; if (k < 1) return "Region size must be at least one"; if (w < 1) return "Width must be at least one"; if (h < 1) return "Height must be at least one"; + if (w > INT_MAX / h) + return "Width times height must not be unreasonably large"; + wh = w * h; if (wh % k) return "Region size must divide grid area"; - if (!full) return NULL; /* succeed partial validation */ /* MAYBE FIXME: we (just?) don't have the UI for winning these. */ |