diff options
| author | Ben Harris <bjh21@bjh21.me.uk> | 2023-01-10 20:41:24 +0000 |
|---|---|---|
| committer | Ben Harris <bjh21@bjh21.me.uk> | 2023-01-15 16:24:27 +0000 |
| commit | 5c36e1536a05abf514b09476813cf71bc9dc1e31 (patch) | |
| tree | 43f1312db3cc8dd36350792b473811ee8e8481a7 | |
| parent | d5ec2758ee3b7a8934475a1122813ad2312dc850 (diff) | |
| download | puzzles-5c36e1536a05abf514b09476813cf71bc9dc1e31.zip puzzles-5c36e1536a05abf514b09476813cf71bc9dc1e31.tar.gz puzzles-5c36e1536a05abf514b09476813cf71bc9dc1e31.tar.bz2 puzzles-5c36e1536a05abf514b09476813cf71bc9dc1e31.tar.xz | |
Last-ditch maximum size limit for Signpost
This makes sure that width * height <= INT_MAX, which it rather needs
to be.
| -rw-r--r-- | signpost.c | 3 |
1 files changed, 3 insertions, 0 deletions
@@ -7,6 +7,7 @@ #include <string.h> #include <assert.h> #include <ctype.h> +#include <limits.h> #include <math.h> #include "puzzles.h" @@ -421,6 +422,8 @@ static const char *validate_params(const game_params *params, bool full) { if (params->w < 1) return "Width must be at least one"; if (params->h < 1) return "Height must be at least one"; + if (params->w > INT_MAX / params->h) + return "Width times height must not be unreasonably large"; if (full && params->w == 1 && params->h == 1) /* The UI doesn't let us move these from unsolved to solved, * so we disallow generating (but not playing) them. */ |