/usr/share/gocode/src/golang.org/x/crypto/ssh/transport_test.go is in golang-golang-x-crypto-dev 1:0.0~git20170407.0.55a552f+REALLY.0.0~git20161012.0.5f31782-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 | // 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 (
"bytes"
"crypto/rand"
"encoding/binary"
"strings"
"testing"
)
func TestReadVersion(t *testing.T) {
longversion := strings.Repeat("SSH-2.0-bla", 50)[:253]
cases := map[string]string{
"SSH-2.0-bla\r\n": "SSH-2.0-bla",
"SSH-2.0-bla\n": "SSH-2.0-bla",
longversion + "\r\n": longversion,
}
for in, want := range cases {
result, err := readVersion(bytes.NewBufferString(in))
if err != nil {
t.Errorf("readVersion(%q): %s", in, err)
}
got := string(result)
if got != want {
t.Errorf("got %q, want %q", got, want)
}
}
}
func TestReadVersionError(t *testing.T) {
longversion := strings.Repeat("SSH-2.0-bla", 50)[:253]
cases := []string{
longversion + "too-long\r\n",
}
for _, in := range cases {
if _, err := readVersion(bytes.NewBufferString(in)); err == nil {
t.Errorf("readVersion(%q) should have failed", in)
}
}
}
func TestExchangeVersionsBasic(t *testing.T) {
v := "SSH-2.0-bla"
buf := bytes.NewBufferString(v + "\r\n")
them, err := exchangeVersions(buf, []byte("xyz"))
if err != nil {
t.Errorf("exchangeVersions: %v", err)
}
if want := "SSH-2.0-bla"; string(them) != want {
t.Errorf("got %q want %q for our version", them, want)
}
}
func TestExchangeVersions(t *testing.T) {
cases := []string{
"not\x000allowed",
"not allowed\n",
}
for _, c := range cases {
buf := bytes.NewBufferString("SSH-2.0-bla\r\n")
if _, err := exchangeVersions(buf, []byte(c)); err == nil {
t.Errorf("exchangeVersions(%q): should have failed", c)
}
}
}
type closerBuffer struct {
bytes.Buffer
}
func (b *closerBuffer) Close() error {
return nil
}
func TestTransportMaxPacketWrite(t *testing.T) {
buf := &closerBuffer{}
tr := newTransport(buf, rand.Reader, true)
huge := make([]byte, maxPacket+1)
err := tr.writePacket(huge)
if err == nil {
t.Errorf("transport accepted write for a huge packet.")
}
}
func TestTransportMaxPacketReader(t *testing.T) {
var header [5]byte
huge := make([]byte, maxPacket+128)
binary.BigEndian.PutUint32(header[0:], uint32(len(huge)))
// padding.
header[4] = 0
buf := &closerBuffer{}
buf.Write(header[:])
buf.Write(huge)
tr := newTransport(buf, rand.Reader, true)
_, err := tr.readPacket()
if err == nil {
t.Errorf("transport succeeded reading huge packet.")
} else if !strings.Contains(err.Error(), "large") {
t.Errorf("got %q, should mention %q", err.Error(), "large")
}
}
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