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Last-ditch maximum size limit for Same Game

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This makes sure that width * height <= INT_MAX, which it rather needs
to be.
This commit is contained in:
Ben Harris
2023-01-10 10:54:37 +00:00
parent b090c82df1
commit d5ec2758ee
1 changed files with 3 additions and 0 deletions
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3
samegame.c
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@ -67,6 +67,7 @@
#include <string.h> #include <string.h>
#include <assert.h> #include <assert.h>
#include <ctype.h> #include <ctype.h>
#include <limits.h>
#include <math.h> #include <math.h>
#include "puzzles.h" #include "puzzles.h"
@ -285,6 +286,8 @@ static const char *validate_params(const game_params *params, bool full)
{ {
if (params->w < 1 || params->h < 1) if (params->w < 1 || params->h < 1)
return "Width and height must both be positive"; return "Width and height must both be positive";
if (params->w > INT_MAX / params->h)
return "Width times height must not be unreasonably large";
if (params->ncols > 9) if (params->ncols > 9)
return "Maximum of 9 colours"; return "Maximum of 9 colours";