function _readHeader(response, expect) {
assert.ok(response);
var len = ctype.ruint32(response, 'big', 0);
var type = ctype.ruint8(response, 'big', 4);
return (expect === type ? len : -1);
}
function readNext(buffer, offset) {
var len = ctype.ruint32(buffer, 'big', offset);
offset += 4;
var newOffset = offset + len;
return {
data: buffer.slice(offset, newOffset),
offset: newOffset
};
}
function _readString(buffer, offset) {
assert.ok(buffer);
assert.ok(offset !== undefined);
var i = 0;
var len = ctype.ruint32(buffer, 'big', offset);
offset += 4;
var str = new Buffer(len);
buffer.copy(str, 0, offset, offset + len);
return str;
}
socket.on('data', function(data) {
gotdata = true;
socket.end();
var len = ctype.ruint32(data, 'big', 0);
if (len !== data.length - 4) {
return callback(new InvalidProtocolError('Expected length: ' +
len + ' but got: ' +
data.length));
}
var type = ctype.ruint8(data, 'big', 4);
if (type !== messageType) {
return callback(new InvalidProtocolError('Expected message type: ' +
messageType +
' but got: ' + type));
}
return parseResponse(data.slice(5));
});
function identitiesAnswer(response) {
assert.ok(response);
var numKeys = ctype.ruint32(response, 'big', 0);
var offset = 4;
var keys = [];
for (var i = 0; i < numKeys; i++) {
var key = _readString(response, offset);
offset += 4 + key.length;
var comment = _readString(response, offset);
offset += 4 + comment.length;
var type = _readString(key, 0);
keys.push({
type: type.toString('ascii'),
ssh_key: key.toString('base64'),
comment: comment.toString('utf8'),
_raw: key
});
}
return callback(null, keys);
}