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# Copyright 1999-2026 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=9
inherit autotools
DESCRIPTION="Simple port-knocking daemon"
HOMEPAGE="https://github.com/TDFKAOlli/knock/"
SRC_URI="https://github.com/TDFKAOlli/knock/archive/refs/tags/${PV}.tar.gz -> ${P}.tar.gz"
LICENSE="GPL-2+"
SLOT="0"
KEYWORDS="amd64 ~arm64 ppc ~sparc x86"
IUSE="+server"
DEPEND="server? ( net-libs/libpcap )"
RDEPEND="${DEPEND}"
src_prepare() {
default
eautoreconf
sed -e "/^AM_CFLAGS/s: -g : :" \
-e "/dist_doc_DATA/s:COPYING::" \
-i Makefile.in || die
sed -e "s:/usr/sbin/iptables:/sbin/iptables:g" \
-i knockd.conf || die
}
src_configure() {
econf $(use_enable server knockd)
}
src_install() {
emake DESTDIR="${D}" docdir="${EPREFIX}/usr/share/doc/${PF}" install
if use server ; then
newinitd "${FILESDIR}"/knockd.initd.2 knock
newconfd "${FILESDIR}"/knockd.confd.2 knock
fi
}
pkg_postinst() {
if use server && ! has_version net-firewall/iptables ; then
elog "You're really encouraged to install net-firewall/iptables to"
elog "actually modify your firewall and use the example configuration."
fi
}
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