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Dir : ~/usr/lib/node_modules/npm/node_modules/sshpk/bin/

Edit File: sshpk-conv

#!/usr/bin/env node
// -*- mode: js -*-
// vim: set filetype=javascript :
// Copyright 2015 Joyent, Inc.	All rights reserved.

var dashdash = require('dashdash');
var sshpk = require('../lib/index');
var fs = require('fs');
var path = require('path');
var tty = require('tty');
var readline = require('readline');
var getPassword = require('getpass').getPass;

var options = [
	{
		names: ['outformat', 't'],
		type: 'string',
		help: 'Output format'
	},
	{
		names: ['informat', 'T'],
		type: 'string',
		help: 'Input format'
	},
	{
		names: ['file', 'f'],
		type: 'string',
		help: 'Input file name (default stdin)'
	},
	{
		names: ['out', 'o'],
		type: 'string',
		help: 'Output file name (default stdout)'
	},
	{
		names: ['private', 'p'],
		type: 'bool',
		help: 'Produce a private key as output'
	},
	{
		names: ['derive', 'd'],
		type: 'string',
		help: 'Output a new key derived from this one, with given algo'
	},
	{
		names: ['identify', 'i'],
		type: 'bool',
		help: 'Print key metadata instead of converting'
	},
	{
		names: ['comment', 'c'],
		type: 'string',
		help: 'Set key comment, if output format supports'
	},
	{
		names: ['help', 'h'],
		type: 'bool',
		help: 'Shows this help text'
	}
];

if (require.main === module) {
	var parser = dashdash.createParser({
		options: options
	});

try {
		var opts = parser.parse(process.argv);
	} catch (e) {
		console.error('sshpk-conv: error: %s', e.message);
		process.exit(1);
	}

if (opts.help || opts._args.length > 1) {
		var help = parser.help({}).trimRight();
		console.error('sshpk-conv: converts between SSH key formats\n');
		console.error(help);
		console.error('\navailable formats:');
		console.error('	 - pem, pkcs1	  eg id_rsa');
		console.error('	 - ssh		  eg id_rsa.pub');
		console.error('	 - pkcs8	  format you want for openssl');
		console.error('	 - openssh	  like output of ssh-keygen -o');
		console.error('	 - rfc4253	  raw OpenSSH wire format');
		console.error('	 - dnssec	  dnssec-keygen format');
		process.exit(1);
	}

/*
	 * Key derivation can only be done on private keys, so use of the -d
	 * option necessarily implies -p.
	 */
	if (opts.derive)
		opts.private = true;

var inFile = process.stdin;
	var inFileName = 'stdin';

var inFilePath;
	if (opts.file) {
		inFilePath = opts.file;
	} else if (opts._args.length === 1) {
		inFilePath = opts._args[0];
	}

if (inFilePath)
		inFileName = path.basename(inFilePath);

try {
		if (inFilePath) {
			fs.accessSync(inFilePath, fs.R_OK);
			inFile = fs.createReadStream(inFilePath);
		}
	} catch (e) {
		console.error('sshpk-conv: error opening input file' +
		     ': ' + e.name + ': ' + e.message);
		process.exit(1);
	}

var outFile = process.stdout;

try {
		if (opts.out && !opts.identify) {
			fs.accessSync(path.dirname(opts.out), fs.W_OK);
			outFile = fs.createWriteStream(opts.out);
		}
	} catch (e) {
		console.error('sshpk-conv: error opening output file' +
		    ': ' + e.name + ': ' + e.message);
		process.exit(1);
	}

if (opts.derive)
			key = key.derive(opts.derive);

if (opts.comment)
			key.comment = opts.comment;

if (!opts.identify) {
			fmt = undefined;
			if (opts.outformat)
				fmt = opts.outformat;
			outFile.write(key.toBuffer(fmt));
			if (fmt === 'ssh' ||
			    (!opts.private && fmt === undefined))
				outFile.write('\n');
			outFile.once('drain', function () {
				process.exit(0);
			});
		} else {
			var kind = 'public';
			if (sshpk.PrivateKey.isPrivateKey(key))
				kind = 'private';
			console.log('%s: a %d bit %s %s key', inFileName,
			    key.size, key.type.toUpperCase(), kind);
			if (key.type === 'ecdsa')
				console.log('ECDSA curve: %s', key.curve);
			if (key.comment)
				console.log('Comment: %s', key.comment);
			console.log('Fingerprint:');
			console.log('  ' + key.fingerprint().toString());
			console.log('  ' + key.fingerprint('md5').toString());
			process.exit(0);
		}
	});
}