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Diffstat (limited to 'vendor/golang.org/x/net/route/message.go')
-rw-r--r--vendor/golang.org/x/net/route/message.go72
1 files changed, 72 insertions, 0 deletions
diff --git a/vendor/golang.org/x/net/route/message.go b/vendor/golang.org/x/net/route/message.go
new file mode 100644
index 0000000..0fa7e09
--- /dev/null
+++ b/vendor/golang.org/x/net/route/message.go
@@ -0,0 +1,72 @@
+// 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
+
+// A Message represents a routing message.
+type Message interface {
+ // Sys returns operating system-specific information.
+ Sys() []Sys
+}
+
+// A Sys reprensents operating system-specific information.
+type Sys interface {
+ // SysType returns a type of operating system-specific
+ // information.
+ SysType() SysType
+}
+
+// A SysType represents a type of operating system-specific
+// information.
+type SysType int
+
+const (
+ SysMetrics SysType = iota
+ SysStats
+)
+
+// ParseRIB parses b as a routing information base and returns a list
+// of routing messages.
+func ParseRIB(typ RIBType, b []byte) ([]Message, error) {
+ if !typ.parseable() {
+ return nil, errUnsupportedMessage
+ }
+ var msgs []Message
+ nmsgs, nskips := 0, 0
+ for len(b) > 4 {
+ nmsgs++
+ l := int(nativeEndian.Uint16(b[:2]))
+ if l == 0 {
+ return nil, errInvalidMessage
+ }
+ if len(b) < l {
+ return nil, errMessageTooShort
+ }
+ if b[2] != sysRTM_VERSION {
+ b = b[l:]
+ continue
+ }
+ if w, ok := wireFormats[int(b[3])]; !ok {
+ nskips++
+ } else {
+ m, err := w.parse(typ, b)
+ if err != nil {
+ return nil, err
+ }
+ if m == nil {
+ nskips++
+ } else {
+ msgs = append(msgs, m)
+ }
+ }
+ b = b[l:]
+ }
+ // We failed to parse any of the messages - version mismatch?
+ if nmsgs != len(msgs)+nskips {
+ return nil, errMessageMismatch
+ }
+ return msgs, nil
+}