fix other part of constructor

resolve/resolver.go

@@ -13,6 +13,8 @@ import (
 
 type Resolver struct {
 	*sam3.SAMResolver
+	samhost         string
+	samport         string
 	allowedSuffixes []string
 }
 
@@ -47,13 +49,20 @@ func (r Resolver) ValidateI2PAddr(name string) bool {
 	return noi2p
 }
 
-func NewResolver() (*Resolver, error) {
-	return NewResolverFromOptions()
+func NewResolver(samhost, samport string) (*Resolver, error) {
+	return NewResolverFromOptions(SetHost(samhost), SetPort(samport))
 }
 
-func NewResolverFromOptions() (*Resolver, error) {
+func NewResolverFromOptions(opts ...func(*Resolver) error) (*Resolver, error) {
 	var r Resolver
 	r.allowedSuffixes = []string{".i2p", ".b32.i2p"}
+	r.samhost = "127.0.0.1"
+	r.samport = "7656"
+	for _, o := range opts {
+		if err := o(&r); err != nil {
+			return nil, err
+		}
+	}
 	var err error
 	r.SAMResolver, err = sam3.NewFullSAMResolver("127.0.0.1:7656")
 	if err != nil {

resolve/resolver_options.go

@@ -0,0 +1,32 @@
+package resolver
+
+import (
+	"fmt"
+	"strconv"
+)
+
+//Option is a Resolver option
+type Option func(*Resolver) error
+
+//SetHost sets the host of the client's SAM bridge
+func SetHost(s string) func(*Resolver) error {
+	return func(c *Resolver) error {
+		c.samhost = s
+		return nil
+	}
+}
+
+//SetPort sets the port of the client's SAM bridge
+func SetPort(v string) func(*Resolver) error {
+	return func(c *Resolver) 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.")
+	}
+}

socks/manager.go

@@ -77,7 +77,7 @@ func NewManagerFromOptions(opts ...func(*Manager) error) (*Manager, error) {
 	if err != nil {
 		return nil, err
 	}
-	if r, err := resolver.NewResolver(); err == nil {
+	if r, err := resolver.NewResolver(m.samhost, m.samport); err == nil {
 		m.Config = socks5.Config{
 			Resolver: r,
 			Dial:     m.Dial,