openntpd: new at 6.8p1

Closes #11.

extra/openntpd/build

@@ -0,0 +1,5 @@
+#!/bin/sh -e
+
+./configure --prefix=/usr --sbindir=/usr/bin
+make
+make DESTDIR="$1" install

extra/openntpd/checksums

@@ -0,0 +1 @@
+fda20dda184955411dce2edc545a5a616f66c0b35df136ccff541d97a32cc87936

extra/openntpd/post-install

@@ -0,0 +1,11 @@
+#!/bin/sh -e
+
+echo "Creating ntpd user."
+if ! grep -Eq ntpd /etc/group; then
+	addgroup -S ntpd
+fi
+
+echo "Creating ntpd group."
+if ! grep -Eq ntpd /etc/passwd; then
+	adduser -S -h /var/empty -G ntpd ntpd
+fi

extra/openntpd/pre-remove

@@ -0,0 +1,7 @@
+#!/bin/sh
+
+cat <<EOF
+A dedicated user and group was created for openntpd when it was installed.
+You may be interested in removing them, which you can do so with:
+# deluser ntpd
+EOF

extra/openntpd/sources

@@ -0,0 +1 @@
+https://cdn.openbsd.org/pub/OpenBSD/OpenNTPD/openntpd-6.8p1.tar.gz

extra/openntpd/version

@@ -0,0 +1 @@
+6.8p1 1