fix: syn Compilation error

core/port/syn/comm.go

@@ -0,0 +1,13 @@
+package syn
+
+import (
+	"errors"
+	"github.com/XinRoom/go-portScan/core/port"
+)
+
+var ErrorNoSyn = errors.New("no syn support")
+
+var DefaultSynOption = port.Option{
+	Rate:    2000,
+	Timeout: 800,
+}

core/port/syn/syn_no.go

@@ -0,0 +1,29 @@
+//go:build nosyn
+
+package syn
+
+import (
+	"github.com/XinRoom/go-portScan/core/port"
+	"net"
+)
+
+type synScanner struct {
+}
+
+// NewSynScanner firstIp: Used to select routes; retChan: Result return channel
+func NewSynScanner(firstIp net.IP, retChan chan port.OpenIpPort, option port.Option) (ss *synScanner, err error) {
+	return nil, ErrorNoSyn
+}
+
+func (ss *synScanner) Scan(dstIp net.IP, dst uint16) error {
+	return nil
+}
+func (ss *synScanner) WaitLimiter() error {
+	return nil
+}
+func (ss *synScanner) Wait()  {}
+func (ss *synScanner) Close() {}
+
+func GetAllDevs() (string, error) {
+	return "", ErrorNoSyn
+}