introduce basic fact collection

client/main.go

@@ -4,13 +4,31 @@ import (
 	"context"
 	"fmt"
 	"io"
+	"log"
 	"os"
 	"os/signal"
+	"os/user"
 
 	"git.dubyatp.xyz/orphanage/client/server"
 )
 
+func check_superuser() bool {
+	current, err := user.Current()
+	if err != nil {
+		log.Fatal(err)
+	}
+	if current.Uid != "0" {
+		return false
+	} else {
+		return true
+	}
+}
+
 func run(ctx context.Context, w io.Writer, args []string) error {
+	if !check_superuser() {
+		log.Fatal("orphan must run as superuser")
+	}
+
 	ctx, cancel := signal.NotifyContext(ctx, os.Interrupt)
 	defer cancel()