[LINUX5250] first SSL attempt in CVS!

[Scott Klement <klemscot@xxxxxxxxxxxx>]

Hi...

I added support for using the OpenSSL library in tn5250.  It's now in
CVS for the HEAD (0.17.x) branch.

Please try it out, as I've only tested it on FreeBSD at this stage.

it requires:
  1) Your AS/400 must already be set up to receive telnet-ssl connections.
  2) You must already have OpenSSL installed on your Linux/BSD box.
  3) after checking out from CVS, you must re-run ./autogen.sh,
          ./configure, make, etc.   (make distclean first if this is
          after a 'cvs update')

once the new code is installed:
  change your host= line in ~/.tn5250rc to look like this:
        host = ssl:as400.here.com

  or from the command line:
        tn5250 ssl:as400.whatever.com

Note: If you don't put 'ssl:' before the host name, it'll continue to use
the "normal" telnet stream, as it always has before.

Also, if you don't have OpenSSL on your system (or if you run configure
with the --without-ssl switch) it will not compile SSL support into the
emulator.  This way, it should be backwards-compatable for those of you
who don't want/need SSL.

Please send any comments/problems/suggestions to the mailing list!