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authorBen Harris <bjh21@bjh21.me.uk>2023-01-10 00:25:52 +0000
committerBen Harris <bjh21@bjh21.me.uk>2023-01-15 16:24:27 +0000
commit40ec3aaf09824face187218f899494aef429a9c6 (patch)
tree36a01d69c0c33b26701e58f3d362d9f421a36ea8
parent051357bb24c0f05c291d6f9e6b460839847923b4 (diff)
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Last-ditch maximum size limit for Netslide
This makes sure that width * height <= INT_MAX, which it rather needs to be.
-rw-r--r--netslide.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/netslide.c b/netslide.c
index 1501740..c2eab66 100644
--- a/netslide.c
+++ b/netslide.c
@@ -8,6 +8,7 @@
#include <string.h>
#include <assert.h>
#include <ctype.h>
+#include <limits.h>
#include <math.h>
#include "puzzles.h"
@@ -307,6 +308,8 @@ static const char *validate_params(const game_params *params, bool full)
{
if (params->width <= 1 || params->height <= 1)
return "Width and height must both be greater than one";
+ if (params->width > INT_MAX / params->height)
+ return "Width times height must not be unreasonably large";
if (params->barrier_probability < 0)
return "Barrier probability may not be negative";
if (params->barrier_probability > 1)