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Diffstat (limited to 'vendor/golang.org/x/net/route/route_classic.go')
-rw-r--r--vendor/golang.org/x/net/route/route_classic.go75
1 files changed, 75 insertions, 0 deletions
diff --git a/vendor/golang.org/x/net/route/route_classic.go b/vendor/golang.org/x/net/route/route_classic.go
new file mode 100644
index 0000000..02fa688
--- /dev/null
+++ b/vendor/golang.org/x/net/route/route_classic.go
@@ -0,0 +1,75 @@
+// Copyright 2016 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 dragonfly freebsd netbsd
+
+package route
+
+import (
+ "runtime"
+ "syscall"
+)
+
+func (m *RouteMessage) marshal() ([]byte, error) {
+ w, ok := wireFormats[m.Type]
+ if !ok {
+ return nil, errUnsupportedMessage
+ }
+ l := w.bodyOff + addrsSpace(m.Addrs)
+ if runtime.GOOS == "darwin" {
+ // Fix stray pointer writes on macOS.
+ // See golang.org/issue/22456.
+ l += 1024
+ }
+ b := make([]byte, l)
+ nativeEndian.PutUint16(b[:2], uint16(l))
+ if m.Version == 0 {
+ b[2] = sysRTM_VERSION
+ } else {
+ b[2] = byte(m.Version)
+ }
+ b[3] = byte(m.Type)
+ nativeEndian.PutUint32(b[8:12], uint32(m.Flags))
+ nativeEndian.PutUint16(b[4:6], uint16(m.Index))
+ nativeEndian.PutUint32(b[16:20], uint32(m.ID))
+ nativeEndian.PutUint32(b[20:24], uint32(m.Seq))
+ attrs, err := marshalAddrs(b[w.bodyOff:], m.Addrs)
+ if err != nil {
+ return nil, err
+ }
+ if attrs > 0 {
+ nativeEndian.PutUint32(b[12:16], uint32(attrs))
+ }
+ return b, nil
+}
+
+func (w *wireFormat) parseRouteMessage(typ RIBType, b []byte) (Message, error) {
+ if len(b) < w.bodyOff {
+ return nil, errMessageTooShort
+ }
+ l := int(nativeEndian.Uint16(b[:2]))
+ if len(b) < l {
+ return nil, errInvalidMessage
+ }
+ m := &RouteMessage{
+ Version: int(b[2]),
+ Type: int(b[3]),
+ Flags: int(nativeEndian.Uint32(b[8:12])),
+ Index: int(nativeEndian.Uint16(b[4:6])),
+ ID: uintptr(nativeEndian.Uint32(b[16:20])),
+ Seq: int(nativeEndian.Uint32(b[20:24])),
+ extOff: w.extOff,
+ raw: b[:l],
+ }
+ errno := syscall.Errno(nativeEndian.Uint32(b[28:32]))
+ if errno != 0 {
+ m.Err = errno
+ }
+ var err error
+ m.Addrs, err = parseAddrs(uint(nativeEndian.Uint32(b[12:16])), parseKernelInetAddr, b[w.bodyOff:])
+ if err != nil {
+ return nil, err
+ }
+ return m, nil
+}