--- /dev/null
+From 2bda2989eee893c42ff04f48a904f00a33a7d07a Mon Sep 17 00:00:00 2001
+From: Vsevolod Stakhov <vsevolod@highsecure.ru>
+Date: Tue, 27 Feb 2018 16:37:44 +0000
+Subject: [PATCH] [CritFix] Do not send reject messages after set reply
+
+Libmilter seems to be totally brain damaged:
+https://github.com/freebsd/freebsd/blob/386ddae58459341ec567604707805814a2128a57/contrib/sendmail/libmilter/engine.c#L66
+
+---
+ src/libserver/milter.c | 22 ++++++++++++++++++----
+ 1 file changed, 18 insertions(+), 4 deletions(-)
+
+ Back-ported for rspamd 1.5.6
+
+diff -ur rspamd-1.6.6/src/libserver/milter.c rspamd-1.6.6-badmilter/src/libserver/milter.c
+--- rspamd-1.6.6/src/libserver/milter.c 2018-02-16 13:47:47.000000000 +0000
++++ rspamd-1.6.6-badmilter/src/libserver/milter.c 2018-03-07 16:07:58.591483869 +0000
+@@ -99,6 +99,8 @@
+ guint i;
+
+ if (how & RSPAMD_MILTER_RESET_IO) {
++ msg_debug_milter ("cleanup IO on abort");
++
+ DL_FOREACH_SAFE (priv->out_chain, obuf, obuf_tmp) {
+ rspamd_milter_obuf_free (obuf);
+ }
+@@ -111,8 +113,11 @@
+ }
+
+ if (how & RSPAMD_MILTER_RESET_COMMON) {
++ msg_debug_milter ("cleanup common data on abort");
++
+ if (session->message) {
+ session->message->len = 0;
++ msg_debug_milter ("cleanup message on abort");
+ }
+
+ if (session->rcpts) {
+@@ -120,30 +125,38 @@
+ rspamd_email_address_unref (cur);
+ }
+
++ msg_debug_milter ("cleanup %d recipients on abort",
++ (gint)session->rcpts->len);
++
+ g_ptr_array_free (session->rcpts, TRUE);
+ session->rcpts = NULL;
+ }
+
+ if (session->from) {
++ msg_debug_milter ("cleanup from");
+ rspamd_email_address_unref (session->from);
+ session->from = NULL;
+ }
+
+ if (session->helo) {
++ msg_debug_milter ("cleanup helo");
+ session->helo->len = 0;
+ }
+
+ if (session->hostname) {
++ msg_debug_milter ("cleanup hostname");
+ session->hostname->len = 0;
+ }
+
+ if (priv->headers) {
++ msg_debug_milter ("cleanup headers");
+ g_hash_table_remove_all (priv->headers);
+ }
+ }
+
+ if (how & RSPAMD_MILTER_RESET_ADDR) {
+ if (session->addr) {
++ msg_debug_milter ("cleanup addr");
+ rspamd_inet_address_free (session->addr);
+ session->addr = NULL;
+ }
+@@ -151,6 +164,7 @@
+
+ if (how & RSPAMD_MILTER_RESET_MACRO) {
+ if (session->macros) {
++ msg_debug_milter ("cleanup macros");
+ g_hash_table_unref (session->macros);
+ session->macros = NULL;
+ }
+@@ -1612,7 +1626,7 @@
+ msg_err_milter ("cannot find scan results, tempfail");
+ rspamd_milter_send_action (session, RSPAMD_MILTER_TEMPFAIL);
+
+- return;
++ goto cleanup;
+ }
+
+ elt = ucl_object_lookup (results, "action");
+@@ -1621,7 +1635,7 @@
+ msg_err_milter ("cannot find action in results, tempfail");
+ rspamd_milter_send_action (session, RSPAMD_MILTER_TEMPFAIL);
+
+- return;
++ goto cleanup;
+ }
+
+ rspamd_action_from_str (ucl_object_tostring (elt), &action);
+@@ -1681,7 +1695,6 @@
+ }
+
+ rspamd_milter_set_reply (session, rcode, xcode, reply);
+- rspamd_milter_send_action (session, RSPAMD_MILTER_REJECT);
+ }
+ break;
+ case METRIC_ACTION_SOFT_REJECT:
+@@ -1696,7 +1709,6 @@
+ }
+
+ rspamd_milter_set_reply (session, rcode, xcode, reply);
+- rspamd_milter_send_action (session, RSPAMD_MILTER_REJECT);
+ break;
+
+ case METRIC_ACTION_REWRITE_SUBJECT:
+@@ -1741,6 +1753,8 @@
+ rspamd_fstring_free (rcode);
+ rspamd_fstring_free (xcode);
+ rspamd_fstring_free (reply);
++
++ rspamd_milter_session_reset (session, RSPAMD_MILTER_RESET_ABORT);
+ }
+
+ void
--- /dev/null
+# Copyright 1999-2018 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+inherit cmake-utils pax-utils user systemd
+
+DESCRIPTION="Rapid spam filtering system"
+SRC_URI="https://github.com/vstakhov/rspamd/archive/${PV}.tar.gz -> ${P}.tar.gz"
+HOMEPAGE="https://github.com/vstakhov/rspamd"
+
+LICENSE="Apache-2.0"
+SLOT="0"
+KEYWORDS="~amd64 ~x86"
+IUSE="cpu_flags_x86_ssse3 fann gd jemalloc +jit libressl pcre2"
+
+RDEPEND="!libressl? ( dev-libs/openssl:0=[-bindist] )
+ libressl? ( dev-libs/libressl:0= )
+ fann? ( sci-mathematics/fann )
+ pcre2? ( dev-libs/libpcre2[jit=] )
+ !pcre2? ( dev-libs/libpcre[jit=] )
+ jit? ( dev-lang/luajit:2 )
+ jemalloc? ( dev-libs/jemalloc )
+ dev-libs/libevent
+ dev-db/sqlite:3
+ dev-libs/glib:2
+ <dev-util/ragel-7.0
+ sys-apps/file
+ gd? ( media-libs/gd[jpeg] )
+ dev-libs/icu
+ cpu_flags_x86_ssse3? ( dev-libs/hyperscan )"
+DEPEND="dev-util/ragel
+ ${RDEPEND}"
+
+QA_MULTILIB_PATHS="usr/lib/rspamd/.*"
+PATCHES=( "${FILESDIR}/${PV}-dont-send-reject-message-after-set-reply.patch" )
+
+pkg_setup() {
+ enewgroup rspamd
+ enewuser rspamd -1 -1 /var/lib/rspamd rspamd
+}
+
+src_configure() {
+ local mycmakeargs=(
+ -DCONFDIR=/etc/rspamd
+ -DRUNDIR=/var/run/rspamd
+ -DDBDIR=/var/lib/rspamd
+ -DLOGDIR=/var/log/rspamd
+ -DENABLE_LUAJIT=$(usex jit ON OFF)
+ -DENABLE_FANN=$(usex fann ON OFF)
+ -DENABLE_PCRE2=$(usex pcre2 ON OFF)
+ -DENABLE_JEMALLOC=$(usex jemalloc ON OFF)
+ -DENABLE_HYPERSCAN=$(usex cpu_flags_x86_ssse3 ON OFF)
+ )
+ cmake-utils_src_configure
+}
+
+src_install() {
+ cmake-utils_src_install
+ newinitd "${FILESDIR}/rspamd.init-r5" rspamd
+
+ # Remove mprotect for JIT support
+ if use jit; then
+ pax-mark m "${ED}"/usr/bin/rspamd-* "${ED}"/usr/bin/rspamadm-* || die
+ fi
+
+ dodir /var/lib/rspamd
+ dodir /var/log/rspamd
+
+ fowners rspamd:rspamd /var/lib/rspamd /var/log/rspamd
+
+ insinto /etc/logrotate.d
+ newins "${FILESDIR}/rspamd.logrotate" rspamd
+
+ systemd_newunit rspamd.service rspamd.service
+}