Windows: Refactor daemon

Signed-off-by: John Howard <jhoward@microsoft.com>

docker/daemon_unix.go

@@ -0,0 +1,30 @@
+// +build daemon,!windows
+
+package main
+
+import (
+	"os"
+
+	apiserver "github.com/docker/docker/api/server"
+	"github.com/docker/docker/daemon"
+	"github.com/docker/docker/pkg/system"
+
+	_ "github.com/docker/docker/daemon/execdriver/lxc"
+	_ "github.com/docker/docker/daemon/execdriver/native"
+)
+
+func setPlatformServerConfig(serverConfig *apiserver.ServerConfig, daemonCfg *daemon.Config) *apiserver.ServerConfig {
+	serverConfig.SocketGroup = daemonCfg.SocketGroup
+	return serverConfig
+}
+
+// currentUserIsOwner checks whether the current user is the owner of the given
+// file.
+func currentUserIsOwner(f string) bool {
+	if fileInfo, err := system.Stat(f); err == nil && fileInfo != nil {
+		if int(fileInfo.Uid()) == os.Getuid() {
+			return true
+		}
+	}
+	return false
+}