Welcome to the Scotty Tcl extension
by Juergen Schoenwaelder and many contributors.
You are looking at the source tree of scotty, a Tcl extension to build
network management applications using Tcl (and Tk). The scotty extension
provides new Tcl commands to
- send and receive ICMP packets
- query the Domain Name System (DNS)
- access UDP sockets from Tcl
- probe and use some selected SUN RPCs
- retrieve and serve documents via HTTP
- send and reveice SNMP messages (SNMPv1, SNMPv2USEC, SNMPv2C)
- write special purpose SNMP agents in Tcl
- parse and access SNMP MIB definitions
- schedule jobs that are to be done regularly
and for some OSI-folks there is some optional code to
- parse and access GDMO MIB definitions
- invoke CMIP operations based on the osimis/isode toolkit
This distributions also includes the sources for Tkined. Tkined is a
network editor which allows to draw maps showing your network
configuration. The most important feature of Tkined is its programming
interface which allows network management applications to extend the
capabilities of Tkined. Most applications for Tkined are written using
The "doc" subdirectory contains manual pages for the scotty extension
an the optional features. The most important one is the Tnm.n page
which gives an overview over the Tcl commands provided by the scotty
extension. You should be able to read them after installation with
the UNIX "man" command, assuming your MANPATH contains the installation
An overview about the scotty extension has been presented at the 3rd
Tcl/Tk workshop in 1995. A PostScript copy of this paper is available
There is also a manual page for Tkined in the "doc" subdirectory. A
short description of the API which is used to write new applications
for the Tkined editor is available in the ined.n page.
3. Compiling and installing Tcl:
This release is based on Tcl7.6 and Tk4.2, but it should also work
with Tcl8.0p2 and Tk8.0p2. You will find the latest version of these
packages at ftp://ftp.smli.com/ and many mirror sites around the
globe. Note, there is guarantee that this scotty/tkined version will
most likely not work with later versions of Tcl and Tk.
This release contains everything you need to compile and run scotty
and tkined with Tcl7.6 and Tk4.2 or Tcl8.0p2 and Tk8.0p2. To compile,
change to the "unix" subdirectory and follow the instructions in the
README file in that directory for compiling scotty and/or tkined,
installing it, and running the test suite. There is some experimental
code to compile scotty/tkined on 32 bit Windows platforms in the "win"
4. Additional Information:
There is a mailing list which is used to announce new versions, to
distribute small patches or discuss everything related to the scotty
extension. The list is combined with the Tkined (a Tk network editor)
discussion list. To subscribe to this list, send a message to
and follow the instructions. Additional information is available on
the Web at the following URL:
These Web pages include release notes, pointer to related material, a
list of frequently asked questions (FAQ) and the mailing list archive.
5. Support and bug fixes:
We are generally interested in receiving bug reports or suggestions
for improvements. When reporting bugs, please provide a good
description how to reproduce the bug and indicate which version of Tcl
and Scotty you are using plus the operating system name and version.
Bugs with a detailed bug report are usually fixed soon.
We can't provide much individual support for users. If you have some
problems that you can't solve by reading the man pages, please make
sure that it is not a Tcl related question (e.g. a quoting problem)
before you send mail to the mailing list (the preferred way to ask
questions as there are people who can help even if we are not on the
Scotty started very simple as a readline Tcl frontend when there was
no standard tclsh available. I added commands to access network
information when I started work on the network editor Tkined. Scotty
grew up in the last years and many people contributed ideas, patches
or complete modules to this package. Below is a list of contributors
(hopefully not too incomplete) in no particular order.
. The dns command and the icmp server ntping were written by Erik
Schoenfelder <firstname.lastname@example.org> who also helped me to fix
bugs and to enhance portability.
. Stefan Schoek <email@example.com> contributed the simple job
scheduler. It was rewritten by me but the ideas were taken from his
original Tcl version.
. Sven Schmidt <firstname.lastname@example.org> did the original SNMP
. Michael Kernchen <email@example.com> wrote the GDMO parser
and the CMIP Tcl interface based on the OSIMIS/ISODE MSAP API.
. Dirk Grunwald <firstname.lastname@example.org> and Dan Mosedale
<email@example.com> provided patches for DEC alpha
. Bob Shaw <firstname.lastname@example.org> helped by reporting bugs that made
scotty more portable.
. Harlan Stenn <email@example.com> provided some bug fixes and a
patch to get yanny to work on HP-UX and SGI boxes.
. John Rodkey <firstname.lastname@example.org> reported some portability
problems on AIX machines.
. Reto Beeler <email@example.com> contributed a simple MIB browser.
It has been rewritten to use `hyperlinks' and is now part of the
snmp browser script.
. John P. Rouillard <firstname.lastname@example.org> provided some patches to compile
scotty on Solaris machines out of the box. He also contributed many
ideas that improved the event and monitoring scripts.
. Juergen Luksch <email@example.com> reported compilation problems on
SCO machines and provided some patches to fix them.
. De Clarke <firstname.lastname@example.org> helped to make integration of scotty and
extended Tcl easier.
. Sam Shen <email@example.com> send me a patch which implements the
udp multicast command.
. Hakan Soderstrom <firstname.lastname@example.org> wrote the msqltcl interface which
is based on the sybtcl and oratcl interface witten by Tom Poindexter
<email@example.com>. Thanks for making this good work available.
. David J. Hughes <Bambi@Bond.edu.au> did a great job on writing the
Mini SQL Server. He did something successfully that we did not get
right with our bones server.
. Doug Hughes <Doug.Hughes@Eng.Auburn.EDU> fixed a long outstanding bug
in sunrpc probe and provided some other valuable fixes/comments.
. Peter Reilly <firstname.lastname@example.org> send some patches to correct the
encoding of IP addresses.
. Hans Bayle <email@example.com> uncovered some bugs in the ASN.1 code
(decode/encode object identifier) and some other minor problems
while trying to run scotty on a SCO box.
. David Brower <firstname.lastname@example.org> send in some patches to make
. Giorgio Andreoli <email@example.com> helped to fix some
Integer32 related problems.
. Jim Madden <firstname.lastname@example.org> provided some patches to fix some
bugs in the monitoring scripts.
. Andre Beck <email@example.com> provided some fixes for the interface
load monitoring script.
. Richard Kooijman wrote the code to display a MIB tree on a canvas
(as part of the tricklet package).
. Andy <firstname.lastname@example.org> provided some patches for the MIB parser.
. Joergen Haegg <email@example.com> send some patches to improve portability.
. Peter J M Polkinghorne <Peter.Polkinghorne@gec-hrc.co.uk> provide some
ideas that made processing of set operations `as if simultaneous' a
. Graeme McKerrell <firstname.lastname@example.org> provided some bug fixes.
. Robert Premuz <email@example.com> reported various bugs in the
sources and the man page. He also helped to fix a couple of problems
in the SNMP agent module.
. David Keeney <firstname.lastname@example.org> send some patches for the USEC
implementation and some 64 bit fixes for Digital UNIX V4.0.
. David Engel <email@example.com> send some patches and ideas that
improved the SNMP implementation.
. Mark J. Elkins <firstname.lastname@example.org> send some patched for the
snmp_cisco.tcl script to upload/download cisco router config files.
. Peter Maersk-Moller <email@example.com> provided patches
and enhancements for some of the tkined application scripts.
. Ron R.A.M. Sprenkels <firstname.lastname@example.org> found a couple of bugs
and inconsistencies while trying to use scotty for an ATM project.
. Philip Hardin <email@example.com> send some patches
for the GDMO parser to recognize the "SET-BY-CREATE" property.
. Martin F. Gergeleit <firstname.lastname@example.org> ported Sun's RPC sources to
Windows NT and made it freely available.
. Aaron Dewell <email@example.com> helped to debug some Linux/Sparc
The Tkined network editor started as an experiment to rewrite an
already existing network editor called ined on top of the Tk/Tcl
. The original ined editor was written by Thomas Birke
<firstname.lastname@example.org> and Hinnerk Ruemenapf <email@example.com>
using the InterViews toolkit.
. Guntram Hueske <firstname.lastname@example.org> turned the stripchart and
barchart Tcl code into C code that implements two new canvas items.
Guntram also wrote an application called tkgraphs which inspired the
GRAPH object type and the diagram window.
. Erik Schoenfelder <email@example.com> contributed ideas that
really improved the tkined interface. He is also a very good tester.
. Thanks to Brian Bartholomew <firstname.lastname@example.org> for some interesting
proposals and Henning G. Schulzrinne <email@example.com> for some
. Many thanks to Mark Weissman <firstname.lastname@example.org> for making his emacs
key bindings available, although they are not used anymore.
. Dieter Rueffler <email@example.com> proposed to integrate
"hyperlinks" to remote tkined maps using URLs. The idea is now
implemented as reference objects.
. Juergen Luksch <firstname.lastname@example.org> reported compilation problems on
SCO machines and provided some suggestions on how to fix them.
. Detlev Habicht <email@example.com> provided some icons.
. Stefan Petri <firstname.lastname@example.org> reported some tricky bugs.
. Jim Madden <email@example.com> send some patches to fix some bugs.
. John Rouillard <firstname.lastname@example.org> always sends very good bug and wish
lists to the mailing list. This usually causes a lot of work but is
. Dan Razzell <email@example.com> send a patch to implement the ined
eval command which allows a script to play with internals from tkined.
Many thanks to all the bug reports and suggestions reported to me or
the tkined mailing list.
The development of this software took place at the Technical University
of Braunschweig (Germany) and the University of Twente (The Netherlands).
Thanks to both Universities for allowing me to make these sources freely
available. Many thanks also to Optical Data Systems (http://www.ods.com)
for sponsoring the porting project to Windows NT.