1 files changed, 0 insertions, 239 deletions
diff --git a/libgo/go/exp/ssh/common.go b/libgo/go/exp/ssh/common.go
deleted file mode 100644
index 6844fb8..0000000
--- a/libgo/go/exp/ssh/common.go
+++ /dev/null
@@ -1,239 +0,0 @@
-// Copyright 2011 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.
-
-package ssh
-
-import (
-	"crypto/dsa"
-	"crypto/rsa"
-	"math/big"
-	"strconv"
-	"sync"
-)
-
-// These are string constants in the SSH protocol.
-const (
-	kexAlgoDH14SHA1 = "diffie-hellman-group14-sha1"
-	hostAlgoRSA     = "ssh-rsa"
-	macSHA196       = "hmac-sha1-96"
-	compressionNone = "none"
-	serviceUserAuth = "ssh-userauth"
-	serviceSSH      = "ssh-connection"
-)
-
-var supportedKexAlgos = []string{kexAlgoDH14SHA1}
-var supportedHostKeyAlgos = []string{hostAlgoRSA}
-var supportedMACs = []string{macSHA196}
-var supportedCompressions = []string{compressionNone}
-
-// dhGroup is a multiplicative group suitable for implementing Diffie-Hellman key agreement.
-type dhGroup struct {
-	g, p *big.Int
-}
-
-// dhGroup14 is the group called diffie-hellman-group14-sha1 in RFC 4253 and
-// Oakley Group 14 in RFC 3526.
-var dhGroup14 *dhGroup
-
-var dhGroup14Once sync.Once
-
-func initDHGroup14() {
-	p, _ := new(big.Int).SetString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
-
-	dhGroup14 = &dhGroup{
-		g: new(big.Int).SetInt64(2),
-		p: p,
-	}
-}
-
-// UnexpectedMessageError results when the SSH message that we received didn't
-// match what we wanted.
-type UnexpectedMessageError struct {
-	expected, got uint8
-}
-
-func (u UnexpectedMessageError) Error() string {
-	return "ssh: unexpected message type " + strconv.Itoa(int(u.got)) + " (expected " + strconv.Itoa(int(u.expected)) + ")"
-}
-
-// ParseError results from a malformed SSH message.
-type ParseError struct {
-	msgType uint8
-}
-
-func (p ParseError) Error() string {
-	return "ssh: parse error in message type " + strconv.Itoa(int(p.msgType))
-}
-
-type handshakeMagics struct {
-	clientVersion, serverVersion []byte
-	clientKexInit, serverKexInit []byte
-}
-
-func findCommonAlgorithm(clientAlgos []string, serverAlgos []string) (commonAlgo string, ok bool) {
-	for _, clientAlgo := range clientAlgos {
-		for _, serverAlgo := range serverAlgos {
-			if clientAlgo == serverAlgo {
-				return clientAlgo, true
-			}
-		}
-	}
-
-	return
-}
-
-func findAgreedAlgorithms(transport *transport, clientKexInit, serverKexInit *kexInitMsg) (kexAlgo, hostKeyAlgo string, ok bool) {
-	kexAlgo, ok = findCommonAlgorithm(clientKexInit.KexAlgos, serverKexInit.KexAlgos)
-	if !ok {
-		return
-	}
-
-	hostKeyAlgo, ok = findCommonAlgorithm(clientKexInit.ServerHostKeyAlgos, serverKexInit.ServerHostKeyAlgos)
-	if !ok {
-		return
-	}
-
-	transport.writer.cipherAlgo, ok = findCommonAlgorithm(clientKexInit.CiphersClientServer, serverKexInit.CiphersClientServer)
-	if !ok {
-		return
-	}
-
-	transport.reader.cipherAlgo, ok = findCommonAlgorithm(clientKexInit.CiphersServerClient, serverKexInit.CiphersServerClient)
-	if !ok {
-		return
-	}
-
-	transport.writer.macAlgo, ok = findCommonAlgorithm(clientKexInit.MACsClientServer, serverKexInit.MACsClientServer)
-	if !ok {
-		return
-	}
-
-	transport.reader.macAlgo, ok = findCommonAlgorithm(clientKexInit.MACsServerClient, serverKexInit.MACsServerClient)
-	if !ok {
-		return
-	}
-
-	transport.writer.compressionAlgo, ok = findCommonAlgorithm(clientKexInit.CompressionClientServer, serverKexInit.CompressionClientServer)
-	if !ok {
-		return
-	}
-
-	transport.reader.compressionAlgo, ok = findCommonAlgorithm(clientKexInit.CompressionServerClient, serverKexInit.CompressionServerClient)
-	if !ok {
-		return
-	}
-
-	ok = true
-	return
-}
-
-// Cryptographic configuration common to both ServerConfig and ClientConfig.
-type CryptoConfig struct {
-	// The allowed cipher algorithms. If unspecified then DefaultCipherOrder is
-	// used.
-	Ciphers []string
-}
-
-func (c *CryptoConfig) ciphers() []string {
-	if c.Ciphers == nil {
-		return DefaultCipherOrder
-	}
-	return c.Ciphers
-}
-
-// serialize a signed slice according to RFC 4254 6.6.
-func serializeSignature(algoname string, sig []byte) []byte {
-	length := stringLength([]byte(algoname))
-	length += stringLength(sig)
-
-	ret := make([]byte, length)
-	r := marshalString(ret, []byte(algoname))
-	r = marshalString(r, sig)
-
-	return ret
-}
-
-// serialize an rsa.PublicKey or dsa.PublicKey according to RFC 4253 6.6.
-func serializePublickey(key interface{}) []byte {
-	algoname := algoName(key)
-	switch key := key.(type) {
-	case rsa.PublicKey:
-		e := new(big.Int).SetInt64(int64(key.E))
-		length := stringLength([]byte(algoname))
-		length += intLength(e)
-		length += intLength(key.N)
-		ret := make([]byte, length)
-		r := marshalString(ret, []byte(algoname))
-		r = marshalInt(r, e)
-		marshalInt(r, key.N)
-		return ret
-	case dsa.PublicKey:
-		length := stringLength([]byte(algoname))
-		length += intLength(key.P)
-		length += intLength(key.Q)
-		length += intLength(key.G)
-		length += intLength(key.Y)
-		ret := make([]byte, length)
-		r := marshalString(ret, []byte(algoname))
-		r = marshalInt(r, key.P)
-		r = marshalInt(r, key.Q)
-		r = marshalInt(r, key.G)
-		marshalInt(r, key.Y)
-		return ret
-	}
-	panic("unexpected key type")
-}
-
-func algoName(key interface{}) string {
-	switch key.(type) {
-	case rsa.PublicKey:
-		return "ssh-rsa"
-	case dsa.PublicKey:
-		return "ssh-dss"
-	}
-	panic("unexpected key type")
-}
-
-// buildDataSignedForAuth returns the data that is signed in order to prove
-// posession of a private key. See RFC 4252, section 7.
-func buildDataSignedForAuth(sessionId []byte, req userAuthRequestMsg, algo, pubKey []byte) []byte {
-	user := []byte(req.User)
-	service := []byte(req.Service)
-	method := []byte(req.Method)
-
-	length := stringLength(sessionId)
-	length += 1
-	length += stringLength(user)
-	length += stringLength(service)
-	length += stringLength(method)
-	length += 1
-	length += stringLength(algo)
-	length += stringLength(pubKey)
-
-	ret := make([]byte, length)
-	r := marshalString(ret, sessionId)
-	r[0] = msgUserAuthRequest
-	r = r[1:]
-	r = marshalString(r, user)
-	r = marshalString(r, service)
-	r = marshalString(r, method)
-	r[0] = 1
-	r = r[1:]
-	r = marshalString(r, algo)
-	r = marshalString(r, pubKey)
-	return ret
-}
-
-// safeString sanitises s according to RFC 4251, section 9.2. 
-// All control characters except tab, carriage return and newline are
-// replaced by 0x20.
-func safeString(s string) string {
-	out := []byte(s)
-	for i, c := range out {
-		if c < 0x20 && c != 0xd && c != 0xa && c != 0x9 {
-			out[i] = 0x20
-		}
-	}
-	return string(out)
-}