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authorBen Harris <bjh21@bjh21.me.uk>2023-01-10 00:09:11 +0000
committerBen Harris <bjh21@bjh21.me.uk>2023-01-15 16:24:27 +0000
commit97484b098f33266f6c747c292c708281cb15a286 (patch)
treee93e71dad3ff3bc9999ee3e1be76d368558690a8 /bridges.c
parent21193eaf9308ace41004a19180ff382ec6e8754b (diff)
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Last-ditch maximum size limit for Bridges
This makes sure that width * height <= INT_MAX, which it rather needs to be.
Diffstat (limited to 'bridges.c')
-rw-r--r--bridges.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/bridges.c b/bridges.c
index de95afe..ec25cab 100644
--- a/bridges.c
+++ b/bridges.c
@@ -72,6 +72,7 @@
#include <string.h>
#include <assert.h>
#include <ctype.h>
+#include <limits.h>
#include <math.h>
#include "puzzles.h"
@@ -803,6 +804,8 @@ static const char *validate_params(const game_params *params, bool full)
{
if (params->w < 3 || params->h < 3)
return "Width and height must be at least 3";
+ if (params->w > INT_MAX / params->h)
+ return "Width times height must not be unreasonably large";
if (params->maxb < 1 || params->maxb > MAX_BRIDGES)
return "Too many bridges.";
if (full) {