get ready for saving the keys

socks/manager_options.go

@@ -1 +1,48 @@
 package tunmanager
+
+import (
+	"fmt"
+	"strconv"
+)
+
+//Option is a Manager option
+type Option func(*Manager) error
+
+//SetHost sets the host of the client's SAM bridge
+func SetHost(s string) func(*Manager) error {
+	return func(c *Manager) error {
+		c.samhost = s
+		return nil
+	}
+}
+
+//SetDataDir sets the directory to save per-site keys
+func SetDataDir(s string) func(*Manager) error {
+	return func(c *Manager) error {
+		c.datadir = s
+		return nil
+	}
+}
+
+//SetPort sets the port of the client's SAM bridge
+func SetPort(v string) func(*Manager) error {
+	return func(c *Manager) error {
+		port, err := strconv.Atoi(v)
+		if err != nil {
+			return fmt.Errorf("Invalid port; non-number.")
+		}
+		if port < 65536 && port > -1 {
+			c.samport = v
+			return nil
+		}
+		return fmt.Errorf("Invalid port.")
+	}
+}
+
+//SetSAMOpts sets the SAM options
+func SetSAMOpts(s string) func(*Manager) error {
+	return func(c *Manager) error {
+		c.samopts = s
+		return nil
+	}
+}