#!/bin/sh
# build.sh — DF-0741 trigger
#
# Builds the userspace trigger that injects a short IPPROTO_MOBILE
# packet to trip the bcopy underflow in gre_mobile_input.
#
# Run on the DragonFly guest as root (the trigger needs a raw socket
# with IP_HDRINCL; setup of the gre-mobile tunnel also needs root).

set -e
cd "$(dirname "$0")"
cc -O2 -Wall -o trigger trigger.c
echo "BUILD_OK: trigger"
ls -l trigger