bump(code.google.com/p/go.net): ca4c826193c2

third_party/code.google.com/p/go.net/ipv4/sockopt_unix.go

@@ -0,0 +1,60 @@
+// Copyright 2012 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 linux netbsd openbsd
+
+package ipv4
+
+import (
+	"os"
+	"syscall"
+)
+
+func ipv4TOS(fd int) (int, error) {
+	v, err := syscall.GetsockoptInt(fd, ianaProtocolIP, syscall.IP_TOS)
+	if err != nil {
+		return 0, os.NewSyscallError("getsockopt", err)
+	}
+	return v, nil
+}
+
+func setIPv4TOS(fd int, v int) error {
+	return os.NewSyscallError("setsockopt", syscall.SetsockoptInt(fd, ianaProtocolIP, syscall.IP_TOS, v))
+}
+
+func ipv4TTL(fd int) (int, error) {
+	v, err := syscall.GetsockoptInt(fd, ianaProtocolIP, syscall.IP_TTL)
+	if err != nil {
+		return 0, os.NewSyscallError("getsockopt", err)
+	}
+	return v, nil
+}
+
+func setIPv4TTL(fd int, v int) error {
+	return os.NewSyscallError("setsockopt", syscall.SetsockoptInt(fd, ianaProtocolIP, syscall.IP_TTL, v))
+}
+
+func ipv4ReceiveTTL(fd int) (bool, error) {
+	v, err := syscall.GetsockoptInt(fd, ianaProtocolIP, syscall.IP_RECVTTL)
+	if err != nil {
+		return false, os.NewSyscallError("getsockopt", err)
+	}
+	return v == 1, nil
+}
+
+func setIPv4ReceiveTTL(fd int, v bool) error {
+	return os.NewSyscallError("setsockopt", syscall.SetsockoptInt(fd, ianaProtocolIP, syscall.IP_RECVTTL, boolint(v)))
+}
+
+func ipv4HeaderPrepend(fd int) (bool, error) {
+	v, err := syscall.GetsockoptInt(fd, ianaProtocolIP, syscall.IP_HDRINCL)
+	if err != nil {
+		return false, os.NewSyscallError("getsockopt", err)
+	}
+	return v == 1, nil
+}
+
+func setIPv4HeaderPrepend(fd int, v bool) error {
+	return os.NewSyscallError("setsockopt", syscall.SetsockoptInt(fd, ianaProtocolIP, syscall.IP_HDRINCL, boolint(v)))
+}