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niusmallnan 2019-01-23 02:17:58 +00:00
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21
vendor/github.com/gbazil/telnet/LICENSE generated vendored
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MIT License
Copyright (c) 2016 Vasily Suvorov
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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vendor/github.com/gbazil/telnet/README.md generated vendored
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# telnet
[© Vasily Suvorov 2016](http://bazil.pro)
#### DESCRIPTION
Package telnet provides very simple interface for interacting with telnet devices from golang's routines.
[![GoDoc](https://godoc.org/github.com/gbazil/telnet?status.svg)](https://godoc.org/github.com/gbazil/telnet)

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vendor/github.com/gbazil/telnet/telnet.go generated vendored
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// Package telnet provides very simple interface for interacting with telnet devices from go routines.
package telnet
import (
"bufio"
"bytes"
"net"
"strings"
"time"
)
// Telnet presents struct with net.Conn interface for telnet protocol plus buffered reader and timeout setup
type Telnet struct {
conn net.Conn
reader *bufio.Reader
timeout time.Duration
}
// Dial constructs connection to a telnet device. Address string must be in format: "ip:port" (e.g. "127.0.0.1:23").
// Default timeout is set to 5 seconds.
func Dial(addr string) (t Telnet, err error) {
t.conn, err = net.Dial("tcp", addr)
if err == nil {
t.reader = bufio.NewReader(t.conn)
t.timeout = time.Second * 5 // default
}
return
}
// DialTimeout acts like Dial but takes a specific timeout (in nanoseconds).
func DialTimeout(addr string, timeout time.Duration) (t Telnet, err error) {
t.conn, err = net.DialTimeout("tcp", addr, timeout)
if err == nil {
t.reader = bufio.NewReader(t.conn)
t.timeout = timeout
}
return
}
// Read reads all data into string from telnet device until it meets the expected or stops on timeout.
func (t Telnet) Read(expect string) (str string, err error) {
var buf bytes.Buffer
t.conn.SetReadDeadline(time.Now().Add(t.timeout))
for {
b, e := t.reader.ReadByte()
if e != nil {
err = e
break
}
if b == 255 {
t.reader.Discard(2)
} else {
buf.WriteByte(b)
}
if strings.Contains(buf.String(), expect) {
str = buf.String()
break
}
}
return
}
// Write writes string (command or data) to telnet device. Do not forget add LF to end of string!
func (t Telnet) Write(s string) (i int, err error) {
t.conn.SetWriteDeadline(time.Now().Add(t.timeout))
i, err = t.conn.Write([]byte(s))
return
}
// SetTimeout changes default or start timeout for all interactions
func (t Telnet) SetTimeout(timeout time.Duration) {
t.timeout = timeout
}