X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/secnet/blobdiff_plain/b1a0f651d803e1c1ff50f559b50de5c2dd6236d4..c1d2109aeff13960693be57a3b16026b7d5a9708:/tun.c?ds=inline

diff --git a/tun.c b/tun.c
index d899f0c..5f9aa98 100644
--- a/tun.c
+++ b/tun.c
@@ -332,7 +332,7 @@ static void tun_phase_hook(void *sst, uint32_t newphase)
 
     hostaddr=ipaddr_to_string(st->local_address);
     secnetaddr=ipaddr_to_string(st->nl.secnet_address);
-    snprintf(mtu,6,"%d",st->nl.mtu);
+    snprintf(mtu,sizeof(mtu),"%d",st->nl.mtu);
     mtu[5]=0;
 
     switch (st->ifconfig_type) {