openbsd-ports/emulators/qemu/files/qemu-ifup

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#! /bin/sh
ETHER=trunk0
BRIDGE=bridge0
if test `id -u` -ne 0; then
SUDO=sudo
fi
echo "Initializing $1.."
# Set the tun device into layer2 mode
$SUDO ifconfig $1 link0 up
# Set up our bridge
$SUDO ifconfig $BRIDGE create
$SUDO brconfig $BRIDGE add $ETHER up
$SUDO brconfig $BRIDGE add $1 up || true