1 files changed, 50 insertions, 0 deletions
diff --git a/src/net/main_posix_test.go b/src/net/main_posix_test.go
new file mode 100644
index 0000000..8899aa9
--- /dev/null
+++ b/src/net/main_posix_test.go
@@ -0,0 +1,50 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build !js && !plan9
+
+package net
+
+import (
+	"net/internal/socktest"
+	"strings"
+	"syscall"
+)
+
+func enableSocketConnect() {
+	sw.Set(socktest.FilterConnect, nil)
+}
+
+func disableSocketConnect(network string) {
+	net, _, _ := strings.Cut(network, ":")
+	sw.Set(socktest.FilterConnect, func(so *socktest.Status) (socktest.AfterFilter, error) {
+		switch net {
+		case "tcp4":
+			if so.Cookie.Family() == syscall.AF_INET && so.Cookie.Type() == syscall.SOCK_STREAM {
+				return nil, syscall.EHOSTUNREACH
+			}
+		case "udp4":
+			if so.Cookie.Family() == syscall.AF_INET && so.Cookie.Type() == syscall.SOCK_DGRAM {
+				return nil, syscall.EHOSTUNREACH
+			}
+		case "ip4":
+			if so.Cookie.Family() == syscall.AF_INET && so.Cookie.Type() == syscall.SOCK_RAW {
+				return nil, syscall.EHOSTUNREACH
+			}
+		case "tcp6":
+			if so.Cookie.Family() == syscall.AF_INET6 && so.Cookie.Type() == syscall.SOCK_STREAM {
+				return nil, syscall.EHOSTUNREACH
+			}
+		case "udp6":
+			if so.Cookie.Family() == syscall.AF_INET6 && so.Cookie.Type() == syscall.SOCK_DGRAM {
+				return nil, syscall.EHOSTUNREACH
+			}
+		case "ip6":
+			if so.Cookie.Family() == syscall.AF_INET6 && so.Cookie.Type() == syscall.SOCK_RAW {
+				return nil, syscall.EHOSTUNREACH
+			}
+		}
+		return nil, nil
+	})
+}