add opensmtpd

mail-mta/opensmtpd/files/smtpd.initd

@@ -0,0 +1,11 @@
+#!/sbin/openrc-run
+# Copyright 1999-2016 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+command="smtpd"
+pidfile="/run/smtpd.pid"
+description="SMTP daemon from OpenBSD"
+
+depend() {
+	need net
+}

mail-mta/opensmtpd/files/smtpd.pam

@@ -0,0 +1,4 @@
+auth       required     pam_nologin.so
+auth       include      system-auth
+account    include      system-auth
+session    include      system-auth

mail-mta/opensmtpd/files/smtpd.service

@@ -0,0 +1,10 @@
+[Unit]
+Description=OpenSMTPD
+After=network.target
+
+[Service]
+Type=forking
+ExecStart=/usr/sbin/smtpd
+
+[Install]
+WantedBy=multi-user.target

mail-mta/opensmtpd/files/smtpd.socket

@@ -0,0 +1,8 @@
+[Unit]
+Description=OpenSMTPD Socket
+
+[Socket]
+ListenStream=/var/run/smtpd.sock
+
+[Install]
+WantedBy=sockets.target