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SSH2 for the Amiga

   Author:       s.franke at bebbosoft.de
   Uploader:     s franke bebbosoft de
   Type:         comm/net
   Version:      1.12
   Architecture: m68k-amigaos
   Required:     bsdsocket.library (e.g AmiTCP)
   Date:         2024-03-25
   Readme:       http://aminet.net/comm/net/amigassh.readme
   Downloads:    1027

http://aminet.net/comm/net/amigassh.lha

===============================================================================

NAME

amigassh

SSH2 for the Amiga, 68000+. Needs a server that supports the used crypto stuff.

Open a shell on the host using your console colors and mouse.

Or execute a command via SSH2.

USAGE: amigassh [options] [user at ]host[:port] [command [args]]

-?,-h,--help display this help

-p <port> define a port

<command> command to run instead of shell

===============================================================================

SUPPORT ME

Support me via PayPal: https://t.ly/N8WkB

also small monthly donations do help :-)

===============================================================================

ed/curve25519 code from Public Domain, Authors:

- Daniel J. Bernstein

- Niels Duif

- Tanja Lange

- lead: Peter Schwabe

- Bo-Yin Yang

* optimized, modified to use 16 bit integers and shrinked

by Stefan "Bebbo" Franke

aes, gcm, sha256, sh512, amigassh itself:

- Stefan "Bebbo" Franke

Written in 2024 by Stefan "Bebbo" Franke <s.franke at bebbosoft>

To the extent possible under law, the author(s) have dedicated all copyright

and related and neighboring rights to this software to the public domain

worldwide. This software is distributed without any warranty.

You should have received a copy of the CC0 Public Domain Dedication along with

this software.

If not, see <https://creativecommons.org/publicdomain/zero/1.0/>.

===============================================================================

DISCLAIMER OF WARRANTY

Software is provided "AS IS," without a warranty of any kind.

You may use it on your own risk.

===============================================================================

LIMITATION OF LIABILITY

I SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY YOU OR ANY THIRD PARTY

AS A RESULT OF USING OR DISTRIBUTING SOFTWARE. IN NO EVENT WILL I BE LIABLE

FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL,

CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS

OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE

SOFTWARE, EVEN IF I HAVE ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

===============================================================================

HISTORY

amigassh V1.12

fixed some bus errors, now it really runs on 68000
CTRL+F is now used to ***Break
support sending CTRL+A/CTRL+E
better mapping of backspace and delete
stack usage is now below 4000 bytes
added -T switch to run without pseudo terminal

amigassh V1.11

reworked and combined the ed25519 and curve25519 code.

Now 16 bit integers are sufficient!

the resulting program can now be used on a 68000.

amigassh V1.10

fix an enforcer hit (using updated binutils/gcc)

amigassh V1.9

renamed `mono` to `xterm-amiga`. Install it!

Necessary since too many stuff checks for the string `xterm`...

added mouse support
patch the window title, like xterm
suppres right mouse button stuff, also during login

amigassh V1.8

support tooltype CONSOLE
modify __chkabort: use CTRL+E to interrupt amigassh,

CTRL+C is handled only by the host

TERM can be set by an environment variable or define it in the icon
fixed an enforcer hit

amigassh V1.7

fix broken window resize - was filtered too...

amigassh V1.6

add key mappings for CTRL+ALT+CURSOR -> PgUp/Down,Pos1/End
pass CTRL+D and make it work
print preauth banner
support CTRL+S/CTRL+Q
suppress menu messages from KingCON

amigassh V1.5

fix build...
support redirected stdin/stdout

amigassh V1.4

bad version...

amigassh V1.3

amigassh is now pure. set the flag and make it resident!
internal setting of a suitable stack size
verbose error messages
unify ed25519/curve25519 code
properly create ENVARC:.ssh if missing
some terminal improvements

amigassh V1.2

properly exit after logout, no CTRL+D required
mono now supports 8 colors - update that file!
handle key stroke repetition
bind local, needed by roadshow
fix reading after buffer pointer changed

amigassh V1.1

some support for CTRL/ALT,
better cursor keys,
better terminfo `mono`
fix if stdin is a file/pipe

amigassh V1.0

initial version

===============================================================================

SYNOPSIS

amigassh [-p port] [user at ]host[:port]

The port defaults to 22.

The user is read from the environment variable `USER`.

===============================================================================

DESCRIPTION

amigassh is an implementation of SSH2. The supported cryptographic methods are

curve25519-sha256
ssh-ed25519
aes128-gcm at openssh.com
hmac-sha2-256
sha512

Only password based authentication is supported for now.

Install the terminfo `xterm-amiga` on the remote system!

Feel free to improve it!

On many systems you have to copy it as root into `/usr/share/terminfo/x`

Pimp your `.bash_profile` to unset `LANG` since the Amiga doesn't like UTF8...

A convenient way is to add this to `.bash_profile`:

```

if [ "$TERM" == "xterm-amiga" ]; then

unset LANG

```

===============================================================================

RANDOM HINTS

the know hosts are stored in `ENVARC:.ssh/known-hosts`

the random generator is not the best...

It's rand() pimped with time and vpos. Then SHA256 is applied. Good enough?

But who would talk about security on an unprotected system like the Amiga?

preset your username with

set USER=<yourname>

you can do this in `s:shell-startup`

You can start it from the workbench!

Use the icon tooltypes to set

COMMAND a remote command to execute instead of a shell

CONSOLE an Amiga console string (defaults to CON://///AUTO/CLOSE/WAIT)

HOST the host name

PORT the port (defaults to 22)

TERM the terminal emulation (defaults to xterm-amiga)

USER the user name

no console graphics?

install the `xterm-amiga` terminfo!

no console colors?

install the `xterm-amiga` terminfo!

no mouse in mc or other applications?

install the `xterm-amiga` terminfo!

keys not working properly?

install the `xterm-amiga` terminfo!

some key does still not work

try pimping the xterm-amiga terminfo.

use `tic -xsv9 -o. xterm-amiga.src`

console displays trash? text look blank? lines are bogus?

unset the variable `LANG`

Contents of comm/net/amigassh.lha

PERMISSION  UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP     NAME
---------- ----------- ------- ------- ------ ---------- ------------ ----------
drwxr-xr-x  1000/1000        0       0 ****** -lhd- 0000 Mar 25 18:52 amigassh/
-rw-r--r--  1000/1000     2857    7169  39.9% -lh5- dded Mar 25 18:52 amigassh/COPYING
-rw-r--r--  1000/1000    25405   39516  64.3% -lh5- 48eb Mar 25 18:52 amigassh/amigassh
-rw-r--r--  1000/1000      455     906  50.2% -lh5- 5a43 Mar 25 18:52 amigassh/amigassh.info
-rw-r--r--  1000/1000     2990    6602  45.3% -lh5- dc85 Mar 25 18:52 amigassh/amigassh.readme
-rw-r--r--  1000/1000      587    1433  41.0% -lh5- 8c0d Mar 25 18:52 amigassh/xterm-amiga
-rw-r--r--  1000/1000      717    1398  51.3% -lh5- 3bfa Mar 25 18:52 amigassh/xterm-amiga.src
---------- ----------- ------- ------- ------ ---------- ------------ ----------
 Total         7 files   33011   57024  57.9%            Mar 25 23:29