mv main package to cmd folder

cmd/main_fakedns.go

@@ -0,0 +1,38 @@
+// +build fakedns
+
+package main
+
+import (
+	"flag"
+
+	"github.com/xjasonlyu/tun2socks/component/fakedns"
+	"github.com/xjasonlyu/tun2socks/log"
+)
+
+func init() {
+	args.EnableFakeDNS = flag.Bool("fakeDNS", false, "Enable fake DNS")
+	args.FakeDNSAddr = flag.String("fakeDNSAddr", ":53", "Listen address of fake DNS")
+	args.Hosts = flag.String("hosts", "", "DNS hosts mapping, e.g. 'example.com=1.1.1.1,example.net=2.2.2.2'")
+	args.HijackDNS = flag.String("hijackDNS", "", "Hijack the specific DNS query to get a fake ip, e.g. '*:53', '8.8.8.8:53,8.8.4.4:53'")
+	args.BackendDNS = flag.String("backendDNS", "8.8.8.8:53,8.8.4.4:53", "Backend DNS to resolve !TypeA or !ClassINET query (must support tcp)")
+
+	registerInitFn(func() {
+		if *args.EnableFakeDNS {
+			var err error
+			fakeDNS, err = fakedns.NewResolver(*args.FakeDNSAddr, *args.Hosts)
+			if err != nil {
+				log.Fatalf("Create fake DNS server failed: %v", err)
+			}
+
+			// Register backend DNS
+			fakedns.RegisterDNS(*args.BackendDNS)
+
+			// Start FakeDNS
+			if err := fakeDNS.Start(); err != nil {
+				log.Fatalf("Start fake DNS failed: %v", err)
+			}
+		} else {
+			fakeDNS = nil
+		}
+	})
+}