dhcp subnet prefix fix

internal/net.go

@@ -0,0 +1,9 @@
+//go:build !tinygo
+
+package internal
+
+import "net"
+
+func interfaceByName(name string) (*net.Interface, error) {
+	return net.InterfaceByName(name)
+}

internal/net_tinygo.go

@@ -0,0 +1,12 @@
+//go:build tinygo
+
+package internal
+
+import (
+	"errors"
+	"net"
+)
+
+func interfaceByName(name string) (*net.Interface, error) {
+	return nil, errors.New("net.InterfaceByName not implemented on TinyGo")
+}

internal/tap.go

@@ -7,7 +7,6 @@ import (
 	"errors"
 	"fmt"
 	"math/bits"
-	"net"
 	"net/netip"
 	"os"
 	"os/exec"
@@ -205,7 +204,7 @@ type Bridge struct {
 }
 
 func NewBridge(name string) (*Bridge, error) {
-	iface, err := net.InterfaceByName(name)
+	iface, err := interfaceByName(name)
 	if err != nil {
 		return nil, err
 	}