HandleChannelOpen (ssh/client.go)

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.

// Source: https://github.com/tailscale/tailscale | License: BSD-3-Clause | Copyright 2020 Tailscale Inc & contributors
// Provided via justclaw.it.com; keep this notice with the code.
// 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"
	"errors"
	"fmt"
	"net"
	"os"
	"sync"
	"time"
)

// Client implements a traditional SSH client that supports shells,
// subprocesses, TCP port/streamlocal forwarding and tunneled dialing.
type Client struct {
	Conn

	handleForwardsOnce sync.Once // guards calling (*Client).handleForwards

	forwards        forwardList // forwarded tcpip connections from the remote side
	mu              sync.Mutex
	channelHandlers map[stri

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