initial, unchanged sources from openbsd 7.6

Makefile

@@ -0,0 +1,19 @@
+#	$OpenBSD: Makefile,v 1.16 2015/11/20 18:53:42 tedu Exp $
+
+PROG=	ntpd
+SRCS=	ntpd.c log.c ntp.c ntp_msg.c parse.y config.c \
+	server.c client.c sensors.c util.c ntp_dns.c \
+	control.c constraint.c
+CFLAGS+= -Wall -I${.CURDIR}
+CFLAGS+= -fstack-protector-all
+CFLAGS+= -Wstrict-prototypes -Wmissing-prototypes
+CFLAGS+= -Wmissing-declarations
+CFLAGS+= -Wshadow -Wpointer-arith -Wcast-qual
+CFLAGS+= -Wsign-compare
+YFLAGS=
+LDADD+=	-lm -lutil -ltls -lssl -lcrypto
+DPADD+= ${LIBUTIL} ${LIBCRYPTO} ${LIBSSL} ${LIBTLS}
+LINKS=	${BINDIR}/ntpd ${BINDIR}/ntpctl
+MAN=	ntpd.8 ntpd.conf.5 ntpctl.8
+
+.include <bsd.prog.mk>