Hulk did something

[bytom/vapor.git] / vendor / golang.org / x / net / route / sys.go

diff --git a/vendor/golang.org/x/net/route/sys.go b/vendor/golang.org/x/net/route/sys.go
new file mode 100644 (file)
index 0000000..3d0ee9b
--- /dev/null
+++ b/vendor/golang.org/x/net/route/sys.go
@@ -0,0 +1,39 @@
+// 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 openbsd
+
+package route
+
+import "unsafe"
+
+var (
+       nativeEndian binaryByteOrder
+       kernelAlign  int
+       wireFormats  map[int]*wireFormat
+)
+
+func init() {
+       i := uint32(1)
+       b := (*[4]byte)(unsafe.Pointer(&i))
+       if b[0] == 1 {
+               nativeEndian = littleEndian
+       } else {
+               nativeEndian = bigEndian
+       }
+       kernelAlign, wireFormats = probeRoutingStack()
+}
+
+func roundup(l int) int {
+       if l == 0 {
+               return kernelAlign
+       }
+       return (l + kernelAlign - 1) & ^(kernelAlign - 1)
+}
+
+type wireFormat struct {
+       extOff  int // offset of header extension
+       bodyOff int // offset of message body
+       parse   func(RIBType, []byte) (Message, error)
+}