ndnpeek
=======

Usage
-----

::

    ndnpeek [-h] [-f] [-r] [-m min] [-M max] [-l lifetime] [-p] [-w timeout] [-v] [-V] name

Description
-----------

``ndnpeek`` is a simple consumer program that sends one Interest and expects one Data
packet in response.  The full Data packet (in TLV format) is written to stdout.  The
program terminates with return code 0 if Data arrives, and with return code 1 when timeout
occurs.

``name`` is interpreted as the Interest name.

Options
-------

``-h, --help``
  Print help and exit.

``-P, --prefix``
  If specified, include ``CanBePrefix`` element in the Interest packet.

``-f, --fresh``
  If specified, include ``MustBeFresh`` element in the Interest packet.

``--link-file [file]``
  Read Link object from ``file`` and add it as ``ForwardingHint`` to the Interest packet.

``-l, --lifetime lifetime``
  Set ``lifetime`` (in milliseconds) as the ``InterestLifetime``.

``-p, --payload``
  If specified, print the received payload only, not the full packet.

``-w, --timeout timeout``
  Timeout after ``timeout`` milliseconds.

``-v, --verbose``
  If specified, verbose output.

``-V, --version``
  Print version and exit.

Exit Codes
----------

0: Success

1: An unspecified error occurred

2: Malformed command line

3: Network operation timed out

4: Nack received

Examples
--------

Send Interest for ``ndn:/app1/video`` and print the received payload only

::

    ndnpeek -p ndn:/app1/video