commit 9fc4efff71ba54d571f1fdb48747539463d2a651
from: Markus Uhlin <markus@nifty-networks.net>
date: Mon Sep  8 15:49:09 2025 UTC

Disallow integer overflow

commit - 6f5f9000271a4a723ca93d6705c03ec8aaf39a0f
commit + 9fc4efff71ba54d571f1fdb48747539463d2a651
blob - ea6e71568f54ceca37e6ad0d7448101d30e1dbb2
blob + 0fdf90a0570b49ea4807e50781f29e6c4ba727f6
--- FICS/network.c
+++ FICS/network.c
@@ -12,6 +12,7 @@
 
 #include <err.h>
 #include <errno.h>
+#include <limits.h>
 
 #include "common.h"
 #include "config.h"
@@ -369,8 +370,11 @@ readline2(comstr_t *cs, int who)
 
 	if (con[who].processed)
 		s += v_pending;
-	else
+	else {
+		if (bytes_received + v_pending > INT_MAX)
+			errx(1, "%s: integer overflow", __func__);
 		bytes_received += v_pending;
+	}
 	d = s;
 
 	while (bytes_received-- > 0) {