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Andrey A. Chernov ca9301398c This sl enhancement helps to keep serial line (modem) connection alive. 
It is common case when modem hangs with carier on but don't
receive anything from another side.
This thing commonly healed with hangup and redialing.
Enhancements below allows to determine when such action
is needed and inform attach program with SIGURG signal.
There two ioctls set: outfill and keepalive, used from both
sides of connection. Outfill repeatedly sends FRAME_END with
specified timeout (i.e. 40 seconds). It is needed to get input on
other side even if no user activity on slip line currently.
Keepalive checks FRAME_ENDs from other side, and if no one
got in specified timeout (i.e. 60 seconds, max modem retrain time),
send SIGURG to attach program.
I plan to add code to slattach to handle this thing too.

Reviewed by: wollman
 		1995-03-30 20:43:32 +00:00
bin Make build work, even if there is no obj subdir. 1995-03-30 19:45:20 +00:00
eBones Security fixes. 1995-02-17 03:57:00 +00:00
etc Restore my function key configuration stuff which Rod promise to 1995-03-30 09:39:51 +00:00
games If possible, pick up the caesar program inside in the compilation tree. 1995-03-26 18:53:45 +00:00
gnu Ack... clean up the logfile name generation that I botched in the last 1995-03-30 04:21:31 +00:00
include Add a necessary include file for the catgets* routines. 1995-03-30 12:47:56 +00:00
lib Add the nls code for XPG3-style message catalogs to libc. 1995-03-30 12:47:27 +00:00
libexec Fix truncating hostname using MAXHOSTNAMELEN 1995-03-24 05:15:09 +00:00
lkm Update to new screen update method. 1995-03-30 15:10:20 +00:00
release Remove kernel compilation directories after use. 1995-03-28 19:28:32 +00:00
sbin make pass work also as the first keyword 1995-03-30 12:18:10 +00:00
secure Mark Murray's authdes.c for xntpd 1995-03-23 19:09:24 +00:00
share Add Delete key description 1995-03-30 00:22:29 +00:00
sys This sl enhancement helps to keep serial line (modem) connection alive. 1995-03-30 20:43:32 +00:00
tools/regression/usr.bin/sed
…
usr.bin Add gencat to Makefile 1995-03-30 12:49:25 +00:00
usr.sbin The latest round of bugfixes here... 1995-03-29 06:13:08 +00:00
COPYRIGHT This is the official 4.4 Lite copyright. 1994-09-11 07:53:28 +00:00
CVS-INFO Documented the new CVS template. This really isn't the right place for it, 1994-07-24 22:27:27 +00:00
HW.TROUBLE
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Makefile Fixed most: target gnu/usr.sbin was install not all 1995-03-28 18:14:17 +00:00
README
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TODO Include a file system debugger fsdb(8). 1995-03-17 19:28:59 +00:00

README 

   -----------------------------------------
       FreeBSD 2.0  ---  ALPHA Release                 ,        ,
   -----------------------------------------          /(        )`
                                                      \ \___   / |
Welcome to the ALPHA release of FreeBSD 2.0 - the     /- _  `-/  '
first public snapshot of our new 4.4BSD Lite based   (/\/ \ \   /\
operating system environment.  This install proce-   / /   | `    \
dure is also at the ALPHA stage, and contains only   O O   ) /    |
the minimum functionality required by an             `-^--'`<     '
*EXPERIENCED* person to install the system.         (_.)  _  )   /
It is our hope, of course, that the feedback         `.___/`    /
provided from this snapshot will                       `-----' /
greatly assist us in making the release   <----.     __ / __   \
of 2.0 much more user friendly.  Your     <----|====O)))==) \) /====
comments and criticisms are very          <----'    `--' `.__,' \
valuable to us, so please don't hesitate               |        |
in contacting us!  Full details on where and            \       /	/\
how to provide feedback are given below.           ______( (_  / \______/
                                                 ,'  ,-----'   |
This install procedure is ALPHA code, and        `--{__________)
may very possibly *DESTROY* the contents of your
ENTIRE DISK!  Please do not proceed with this installation
unless you've adequately backed up your data first!

If any errors occur during this installation, you can see them
by toggling over to the alternate screen - type ALT-F2 to switch
over, ALT-F1 to switch back to the install screen.  The debugging
output on the second screen may be very valuable to us in understanding
your bug report, so please be sure to take note of it when reporting
any failures in the installation!  Thanks!

Menus and scrolling output windows may be traversed with the arrow
and Page Up/Page Down keys.  To suspend the installation at any point,
hit ESC twice.  Hitting TAB will move the focus to different controls.
If you've ever dealt with a DOS installation, you'll know how to deal
with this.

For a more complete description of what's new in this release, please
see the release notes.

For more documentation on this system, it is recommended that you purchase
the 4.4BSD Document Set from O'Reilly Associates and the USENIX Association.
ISBN 1-56592-082-1  We have no connection with O'Reilly, we're just
satisfied customers!

Have fun, and please let us know of any problems you encounter with
this release!

Comments should be sent to:

	hackers@FreeBSD.org

Bug reports should be sent using the `send-pr' utility, if you
were able to get the system installed, otherwise to:

	bugs@FreeBSD.org

And general questions to:

	questions@FreeBSD.org


Please have patience if your questions are not answered right away -
this is an especially busy time for us, and our volunteer resources
are often strained to the limit (if not somewhat past!).

Thanks!

				The FreeBSD Project