1 files changed, 54 insertions, 0 deletions
diff --git a/src/pkg/net/sockoptip_bsd.go b/src/pkg/net/sockoptip_bsd.go
new file mode 100644
index 000000000..5f7dff248
--- /dev/null
+++ b/src/pkg/net/sockoptip_bsd.go
@@ -0,0 +1,54 @@
+// Copyright 2011 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.
+
+// +build darwin freebsd netbsd openbsd
+
+// IP-level socket options for BSD variants
+
+package net
+
+import (
+	"os"
+	"syscall"
+)
+
+func ipv4MulticastTTL(fd *netFD) (int, error) {
+	fd.incref()
+	defer fd.decref()
+	v, err := syscall.GetsockoptByte(fd.sysfd, syscall.IPPROTO_IP, syscall.IP_MULTICAST_TTL)
+	if err != nil {
+		return -1, os.NewSyscallError("getsockopt", err)
+	}
+	return int(v), nil
+}
+
+func setIPv4MulticastTTL(fd *netFD, v int) error {
+	fd.incref()
+	defer fd.decref()
+	err := syscall.SetsockoptByte(fd.sysfd, syscall.IPPROTO_IP, syscall.IP_MULTICAST_TTL, byte(v))
+	if err != nil {
+		return os.NewSyscallError("setsockopt", err)
+	}
+	return nil
+}
+
+func ipv6TrafficClass(fd *netFD) (int, error) {
+	fd.incref()
+	defer fd.decref()
+	v, err := syscall.GetsockoptInt(fd.sysfd, syscall.IPPROTO_IPV6, syscall.IPV6_TCLASS)
+	if err != nil {
+		return -1, os.NewSyscallError("getsockopt", err)
+	}
+	return v, nil
+}
+
+func setIPv6TrafficClass(fd *netFD, v int) error {
+	fd.incref()
+	defer fd.decref()
+	err := syscall.SetsockoptInt(fd.sysfd, syscall.IPPROTO_IPV6, syscall.IPV6_TCLASS, v)
+	if err != nil {
+		return os.NewSyscallError("setsockopt", err)
+	}
+	return nil
+}