psiphon-tunnel-core/psiphon/common/crypto/ssh/agent/example_test.go

// 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.

package agent_test

import (
	"log"
	"net"
	"os"

	"github.com/Psiphon-Labs/psiphon-tunnel-core/psiphon/common/crypto/ssh"
	"github.com/Psiphon-Labs/psiphon-tunnel-core/psiphon/common/crypto/ssh/agent"
)

func ExampleNewClient() {
	// ssh-agent(1) provides a UNIX socket at $SSH_AUTH_SOCK.
	socket := os.Getenv("SSH_AUTH_SOCK")
	conn, err := net.Dial("unix", socket)
	if err != nil {
		log.Fatalf("Failed to open SSH_AUTH_SOCK: %v", err)
	}

	agentClient := agent.NewClient(conn)
	config := &ssh.ClientConfig{
		User: "gopher",
		Auth: []ssh.AuthMethod{
			// Use a callback rather than PublicKeys so we only consult the
			// agent once the remote server wants it.
			ssh.PublicKeysCallback(agentClient.Signers),
		},
		HostKeyCallback: ssh.InsecureIgnoreHostKey(),
	}

	sshc, err := ssh.Dial("tcp", "localhost:22", config)
	if err != nil {
		log.Fatal(err)
	}
	// Use sshc...
	sshc.Close()
}