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| author | Ben Harris <bjh21@bjh21.me.uk> | 2023-01-10 21:20:35 +0000 |
|---|---|---|
| committer | Ben Harris <bjh21@bjh21.me.uk> | 2023-01-15 16:24:27 +0000 |
| commit | da220a77d1793edd14144fd96584b7f461f06dfb (patch) | |
| tree | e2a99ccf8dad25def15b14184c83ca2291c4c7e9 | |
| parent | 26d0633f87ccdbaf7035e2e14d9dfbfd7f379527 (diff) | |
| download | puzzles-da220a77d1793edd14144fd96584b7f461f06dfb.zip puzzles-da220a77d1793edd14144fd96584b7f461f06dfb.tar.gz puzzles-da220a77d1793edd14144fd96584b7f461f06dfb.tar.bz2 puzzles-da220a77d1793edd14144fd96584b7f461f06dfb.tar.xz | |
Last-ditch grid-size limit for Flood
At least prevent integer overflow when constructing the grid.
| -rw-r--r-- | flood.c | 3 |
1 files changed, 3 insertions, 0 deletions
@@ -31,6 +31,7 @@ #include <string.h> #include <assert.h> #include <ctype.h> +#include <limits.h> #include <math.h> #include "puzzles.h" @@ -209,6 +210,8 @@ static const char *validate_params(const game_params *params, bool full) { if (params->w < 2 && params->h < 2) return "Grid must contain at least two squares"; + if (params->w > INT_MAX / params->h) + return "Width times height must not be unreasonably large"; if (params->colours < 3 || params->colours > 10) return "Must have between 3 and 10 colours"; if (params->leniency < 0) |