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author | 2017-11-19 21:10:04 -0800 | |
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committer | 2017-11-19 22:01:46 -0800 | |
commit | 8ffb773f43c8dc54801ca1d111854e7e881c93c9 (patch) | |
tree | 38133a2fc612597a75fed1d13e5b4042f58a2b7e /vendor/golang.org/x/net/route/sys.go | |
download | v2-8ffb773f43c8dc54801ca1d111854e7e881c93c9.tar.gz v2-8ffb773f43c8dc54801ca1d111854e7e881c93c9.tar.zst v2-8ffb773f43c8dc54801ca1d111854e7e881c93c9.zip |
First commit
Diffstat (limited to 'vendor/golang.org/x/net/route/sys.go')
-rw-r--r-- | vendor/golang.org/x/net/route/sys.go | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/vendor/golang.org/x/net/route/sys.go b/vendor/golang.org/x/net/route/sys.go new file mode 100644 index 00000000..3d0ee9b1 --- /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) +} |