fmt; fixed IP address dialer option for seclient

fixed.go

@@ -0,0 +1,31 @@
+package main
+
+import (
+	"context"
+	"net"
+)
+
+type FixedDialer struct {
+	fixedAddress string
+	next ContextDialer
+}
+
+func NewFixedDialer(address string, next ContextDialer) *FixedDialer {
+	return &FixedDialer{
+		fixedAddress: address,
+		next: next,
+	}
+}
+
+func (d *FixedDialer) DialContext(ctx context.Context, network, address string) (net.Conn, error) {
+	_, port, err := net.SplitHostPort(address)
+	if err != nil {
+		return nil, err
+	}
+
+	return d.next.DialContext(ctx, network, net.JoinHostPort(d.fixedAddress, port))
+}
+
+func (d *FixedDialer) Dial(network, address string) (net.Conn, error) {
+	return d.DialContext(context.Background(), network, address)
+}