Index: Makefile
===================================================================
--- Makefile
+++ Makefile
@@ -1182,6 +1183,7 @@
     SUBDIR += snmp_exporter
     SUBDIR += snooze
     SUBDIR += snowlog
+    SUBDIR += sockaddr
     SUBDIR += socket
     SUBDIR += socklog
     SUBDIR += solaar
Index: sockaddr/Makefile
===================================================================
--- sockaddr/Makefile
+++ sockaddr/Makefile
@@ -0,0 +1,36 @@
+# $FreeBSD$
+
+PORTNAME=	sockaddr
+DISTVERSION=	g20180320
+CATEGORIES=	sysutils
+
+MAINTAINER=	seanc@FreeBSD.org
+COMMENT=	Command line utility for querying IP information
+
+LICENSE=	MPL20
+LICENSE_FILE=	${WRKSRC}/LICENSE
+
+BUILD_DEPENDS=	go:lang/go
+
+USE_GITHUB=	yes
+GH_SUBDIR=	src/github.com/hashicorp/go-sockaddr/cmd/${PORTNAME}
+GH_ACCOUNT=	hashicorp
+GH_TUPLE=	hashicorp:go-sockaddr:7165ee1:DEFAULT/src/github.com/hashicorp/go-sockaddr
+
+GO_TARGET=	${GO_PKGNAME}/cmd/${PORTNAME}
+
+PLIST_FILES=	bin/sockaddr
+
+post-extract:
+	@${CP} -rp ${WRKSRC}/cmd/${PORTNAME}/vendor/* ${WRKSRC}/src/
+
+do-build:
+	@cd ${WRKSRC}/cmd/${PORTNAME} && ${SETENV} ${MAKE_ENV} CGO_ENABLED=0 GOPATH=${WRKSRC} \
+	${LOCALBASE}/bin/go build -ldflags "-X main.version=${DISTVERSIONPREFIX}${PORTVERSION} -s -w" \
+		-o ${PORTNAME}
+
+do-install:
+	${INSTALL_PROGRAM} ${WRKSRC}/src/github.com/hashicorp/go-sockaddr/cmd/${PORTNAME}/${PORTNAME} \
+		${STAGEDIR}${PREFIX}/bin/${PORTNAME}
+
+.include <bsd.port.mk>
Index: sockaddr/distinfo
===================================================================
--- sockaddr/distinfo
+++ sockaddr/distinfo
@@ -0,0 +1,3 @@
+TIMESTAMP = 1524764441
+SHA256 (hashicorp-go-sockaddr-g20180320-7165ee1_GH0.tar.gz) = 51a6c981da7aa9d9dd7ca9044115804cc40b6b1d926610c12ba2bf549a6daf2d
+SIZE (hashicorp-go-sockaddr-g20180320-7165ee1_GH0.tar.gz) = 661149
Index: sockaddr/pkg-descr
===================================================================
--- sockaddr/pkg-descr
+++ sockaddr/pkg-descr
@@ -0,0 +1,8 @@
+Sockaddr is a command-line utility that makes it easy to query network
+address information from the local server.  With sockaddr it is possible
+to create a list of the RFC 1918 addresses on a server, obtain the
+default gateway, or public IP addresses and use this information in other
+shell scripts.  See the website for additional templating and IP math
+functions.
+
+WWW: https://github.com/hashicorp/go-sockaddr/tree/master/cmd/sockaddr