  openssh_authAgent(chan, initWindow, maxPacket) {
    if (!this._server)
      throw new Error('Server-only method called in client mode');

    let p = this._packetRW.write.allocStart;
    const packet = this._packetRW.write.alloc(1 + 4 + 22 + 4 + 4 + 4);

    packet[p] = MESSAGE.CHANNEL_OPEN;

    writeUInt32BE(packet, 22, ++p);
    packet.utf8Write('auth-agent@openssh.com', p += 4, 22);

    writeUInt32BE(packet, chan, p += 22);

    writeUInt32BE(packet, initWindow, p += 4);

    writeUInt32BE(packet, maxPacket, p += 4);

    this._debug && this._debug(
      `Outbound: Sending CHANNEL_OPEN (r:${chan}, auth-agent@openssh.com)`
    );
    sendPacket(this, this._packetRW.write.finalize(packet));
  }
The software constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.