@@ -14,11 +14,12 @@ import (

 	"github.com/docker/libtrust"

 )

+// Common constants for daemon and client.

 const (

-	APIVERSION            version.Version = "1.18"

-	DEFAULTHTTPHOST                       = "127.0.0.1"

-	DEFAULTUNIXSOCKET                     = "/var/run/docker.sock"

-	DefaultDockerfileName string          = "Dockerfile"

+	APIVERSION            version.Version = "1.18"                 // Current REST API version

+	DEFAULTHTTPHOST                       = "127.0.0.1"            // Default HTTP Host used if only port is provided to -H flag e.g. docker -d -H tcp://:8080

+	DEFAULTUNIXSOCKET                     = "/var/run/docker.sock" // Docker daemon by default always listens on the default unix socket

+	DefaultDockerfileName string          = "Dockerfile"           // Default filename with Docker commands, read by docker build

 )

 func ValidateHost(val string) (string, error) {