184 files changed, 0 insertions, 71292 deletions

diff --git a/mdk-stage1/ppp/Changes-2.3 b/mdk-stage1/ppp/Changes-2.3
deleted file mode 100644
index f5c954b4b..000000000
--- a/mdk-stage1/ppp/Changes-2.3
+++ /dev/null
@@ -1,441 +0,0 @@
-What was new in ppp-2.3.11.
-***************************
-
-* Support for Solaris 8 has been added, including support for
-  replumbing and IPV6.
-
-* The Solaris `snoop' utility should now work on ppp interfaces.
-
-* New hooks have been added - pap_logout_hook, ip_up_hook, and
-  ip_down_hook.
-
-* A new `passprompt' plugin is included, thanks to Alan Curry, which
-  makes it possible for pppd to call an external program to get the
-  PAP password to send to the peer.
-
-* The error messages for the situation where authentication is
-  required because the system has a default route have been improved.
-
-* There is a new connect_delay option which specifies how long pppd
-  should pause after the connect script finishes.  Previously this
-  delay was fixed at 1 second.  (This delay terminates as soon as pppd
-  sees a valid PPP frame from the peer.)
-
-* The `hide-password' option is now the default, and there is a new
-  `show-password' option to enable the printing of password strings in
-  the debug output.
-
-* A fairly complete list of the names of PPP protocols has been added
-  so that when pppd rejects a frame because its protocol is not
-  supported, it can print the name of the unsupported protocol.
-
-* Synchronous serial lines are supported under Linux 2.3.x.
-
-* The bug where pppd would not recognize a modem hangup under Linux
-  2.3.x kernels has been fixed.
-
-
-What was new in ppp-2.3.10.
-***************************
-
-* Pppd now supports `plugins', which are pieces of code (packaged as
-  shared libraries) which can be loaded into pppd at runtime and which
-  can affect its behaviour.  The intention is that plugins provide a
-  way for people to customize the behaviour of pppd for their own
-  needs without needing to change the base pppd source.  I have added
-  some hooks into pppd (places where pppd will call a function
-  pointer, if non-zero, to replace some of pppd's code) and I will be
-  receptive to suggestions about places to add more hooks.  Plugins
-  are supported under Linux and Solaris at present.
-
-* We have a new maintainer for the Solaris port, Adi Masputra of Sun
-  Microsystems, and he has updated the Solaris port so that it should
-  work on 64-bit machines under Solaris 7 and later.
-
-* Pppd now has an `allow-ip' option, which takes an argument which is
-  an IP address (or subnet) which peers are permitted to use without
-  authenticating themselves.  The argument takes the same form as each
-  element of the allowed IP address list in the secrets files.  The
-  allow-ip option is privileged and may be specified multiple times.
-  Using the allow-ip option should be cleaner than putting a line like
-  `"" * "" address' in /etc/ppp/pap-secrets.
-
-* Chat can now substitute environment variables into the script.  This
-  is enabled by the -E flag.  (Thanks to Andreas Arens for the patch.)
-
-* If the PAP username and password from the peer contains unprintable
-  characters, they will be translated to a printable form before
-  looking in the pap-secrets file.  Characters >= 0x80 are translated
-  to a M- form, and characters from 0 to 0x1f (and 0x7f as well) are
-  translated to a ^X form.  If this change causes you grief, let me
-  know what would be a better translation.  It appears that some peers
-  send nulls or other control characters in their usernames and
-  passwords.
-
-* Pppd has new `ktune' and `noktune' options, which enable/disable
-  it to change kernel settings as appropriate.  This is only
-  implemented under Linux, and requires the /proc filesystem to be
-  mounted.  Under Linux, with the ktune option, pppd will enable IP
-  forwarding in the kernel if the proxyarp option is used, and will
-  enable the dynamic IP address kernel option in demand mode if the
-  local IP address changes.
-
-* Pppd no longer requires a remote address to be specified for demand
-  dialling.  If none is specified, it will use a default value of
-  10.112.112.112+unit_number.  (It will not propose this default to
-  the peer.)
-
-* The default holdoff is now 0 if no connect script is given.
-
-* The IPV6 code from Tommi Komulainen, which I unfortunately only
-  partially merged in to ppp-2.3.9, has been fixed and updated.
-
-* The linux compilation glitches should be fixed now.
-
-
-What was new in ppp-2.3.9.
-**************************
-
-* Support for the new generic PPP layer under development for the
-  Linux kernel.
-
-* You can now place extra options to apply to specific users at the
-  end of the line with their password in the pap-secrets or
-  chap-secrets file, separated from the IP address(es) with a "--"
-  separator.  These options are parsed after the peer is authenticated
-  but before network protocol (IPCP, IPXCP) or CCP negotiation
-  commences.
-
-* Pppd will apply the holdoff period if the link was terminated by the
-  peer.  It doesn't apply it if the link was terminated because the
-  local pppd thought it was idle.
-
-* Synchronous support for Solaris has been added, thanks to John
-  Morrison, and for FreeBSD, thanks to Paul Fulghum.
-
-* IPV6 support has been merged in, from Tommi Komulainen.  At the
-  moment it only supports Linux and it is not tested by me.
-
-* The `nodefaultip' option can be used in demand mode to say that pppd
-  should not suggest its local IP address to the peer.
-
-* The `init' option has been added; this causes pppd to run a script
-  to initialize the serial device (e.g. by sending an init string to
-  the modem).  Unlike the connect option, this can be used in a
-  dial-in situation.  (Thanks to Tobias Ringstrom.)
-
-* There is a new `logfile' option to send log messages to a file as
-  well as syslog.
-
-* There is a new, privileged `linkname' option which sets a logical
-  name for the link.  Pppd will create a /var/run/ppp-<linkname>.pid
-  file containing its process ID.
-
-* There is a new `maxfail' option which specifies how many consecutive
-  failed connection attempts are permitted before pppd will exit.  The
-  default value is 10, and 0 means infinity. :-)
-
-* Sundry bugs fixed.
-
-
-What was new in ppp-2.3.8.
-**************************
-
-* The exit status of pppd will now indicate whether the link was
-  successfully established, or if not, what error was encountered.
-
-* Pppd has two new options: fdlog <n> will send log messages to file
-  descriptor <n> instead of standard output, and nofdlog will stop log
-  messages from being sent to any file descriptor (they will still be
-  sent to syslog).  Pppd now will not send log messages to a file
-  descriptor if the serial port is open on that file descriptor.
-
-* Pppd sets an environment variable called PPPLOGNAME for scripts that
-  it runs, indicating the login name of the user who invoked pppd.
-
-* Pppd sets environment variables CONNECT_TIME, BYTES_SENT and
-  BYTES_RCVD for the ip-down and auth-down scripts indicating the
-  statistics for the connection just terminated.  (CONNECT_TIME is in
-  seconds.)
-
-* If the user has the serial device open on standard input and
-  specifies a symbolic link to the serial device on the command line,
-  pppd will detect this and behave correctly (i.e. not detach from its
-  controlling terminal).  Furthermore, if the serial port is open for
-  reading and writing on standard input, pppd will assume that it is
-  locked by its invoker and not lock it itself.
-
-* Chat now has a feature where if a string to be sent begins with an
-  at sign (@), the rest of the string is taken as the name of a file
-  (regular file or named pipe), and the actual string to send is taken
-  from that file.
-
-* Support for FreeBSD-2.2.8 and 3.0 has been added, thanks to Paul
-  Fulghum.
-
-* The Tru64 (aka Digital Unix aka OSF/1) port has been updated.
-
-* The system panics on Solaris SMP systems related to PPP connections
-  being established and terminated should no longer occur.
-
-* Fixed quite a few bugs.
-
-
-What was new in ppp-2.3.7.
-**************************
-
-* Pppd can now automatically allocate itself a pseudo-tty to use as
-  the serial device.  This has made three new options possible:
-
-  - `pty script' will run `script' with its standard input and output
-    connected to the master side of the pty.  For example:
-	pppd pty 'ssh -t server.my.net pppd'
-    is a basic command for setting up a PPP link (tunnel) over ssh.
-    (In practice you may need to specify other options such as IP
-    addresses, etc.)
-
-  - `notty' tells pppd to communicate over its standard input and
-    output, which do not have to be a terminal device.
-
-  - `record filename' tells pppd to record all of the characters sent
-    and received over the serial device to a file called `filename'.
-    The data is recorded in a tagged format with timestamps, which can
-    be printed in a readable form with the pppdump program, which is
-    included in this distribution.
-
-* Pppd now logs the connect time and number of bytes sent and received
-  (at the level of the serial device) when the connection is
-  terminated.
-
-* If you use the updetach or nodetach option, pppd will print its
-  messages to standard output as well as logging them with syslog
-  (provided of course pppd isn't using its standard input or output as
-  its serial device).
-
-* There is a new `privgroup groupname' option (a privileged option).
-  If the user running pppd is in group `groupname', s/he can use
-  privileged options without restriction.
-
-* There is a new `receive-all' option, which causes pppd to accept all
-  control characters, even the ones that the peer should be escaping
-  (i.e. the receive asyncmap is 0).  This is useful with some buggy
-  peers.
-
-* The default asyncmap is now 0.
-
-* There is a new `sync' option, currently only implemented under
-  Linux, which allows pppd to run on synchronous HDLC devices.
-
-* If a value for the device name or for the connect, disconnect,
-  welcome or pty option is given in a privileged option file
-  (i.e. /etc/ppp/options or a file loaded with the `call' option), it
-  cannot be overridden by a non-privileged user.
-
-* Many bugs have been fixed, notably:
-  - signals are not blocked unnecessarily, as they were in 2.3.6.
-  - the usepeerdns option should work now.
-  - the SPEED environment variable for scripts is set correctly.
-  - the /etc/ppp/auth-down script is not run until auth-up completes.
-  - the device is opened as root if it is the device on standard
-    input.
-  - pppd doesn't die with the ioctl(PPPIOCSASYNCMAP) error under linux
-    if a hangup occurs at the wrong time.
-
-* Some error messages have been changed to be clearer (I hope :-)
-
-
-What was new in ppp-2.3.6.
-**************************
-
-* Pppd now opens the tty device as the user (rather than as root) if
-  the device name was given by the user, i.e. on the command line or
-  in the ~/.ppprc file.  If the device name was given in
-  /etc/ppp/options or in a file loaded with the `call' option, the
-  device is opened as root.
-
-* The default behaviour of pppd is now to let a peer which has not
-  authenticated itself (e.g. your ISP) use any IP address to which the
-  system does not already have a route.  (This is currently only
-  supported under Linux, Solaris and Digital Unix; on the other
-  systems, the peer must now authenticate itself unless the noauth
-  option is used.)
-
-* Added new option `usepeerdns', thanks to Nick Walker
-  <nickwalker@email.com>.  If the peer supplies DNS addresses, these
-  will be written to /etc/ppp/resolv.conf.  The ip-up script can then
-  be used to add these addresses to /etc/resolv.conf if desired (see
-  the ip-up.local.add and ip-down.local.add files in the scripts
-  directory).
-
-* The Solaris ppp driver should now work correctly on SMP systems.
-
-* Minor corrections so that the code can compile under Solaris 7,
-  and under Linux with glibc-2.1.
-
-* The Linux kernel driver has been restructured for improved
-  performance.
-
-* Pppd now won't start the ip-down script until the ip-up script has
-  finished.
-
-
-What was new in ppp-2.3.5.
-**************************
-
-* Minor corrections to the Digital UNIX and NetBSD ports.
-
-* A workaround to avoid tickling a bug in the `se' serial port driver
-on Sun PCI Ultra machines running Solaris.
-
-* Fixed a bug in the negotiation of the Microsoft WINS server address
-option.
-
-* Fixed a bug in the Linux port where it would fail for kernel
-versions above 2.1.99.
-
-
-What was new in ppp-2.3.4.
-**************************
-
-* The NeXT port has been updated, thanks to Steve Perkins.
-
-* ppp-2.3.4 compiles and works under Solaris 2.6, using either gcc or
-cc.
-
-* With the Solaris, SVR4 and SunOS ports, you can control the choice
-of C compiler, C compiler options, and installation directories by
-editing the svr4/Makedefs or sunos4/Makedefs file.
-
-* Until now, we have been using the number 24 to identify Deflate
-compression in the CCP negotiations, which was the number in the draft
-RFC describing Deflate.  The number actually assigned to Deflate is
-26.  The code has been changed to use 26, but to allow the use of 24
-for now for backwards compatibility.  (This can be disabled with the
-`nodeflatedraft' option to pppd.)
-
-* Fixed some bugs in the linux driver and deflate compressor which
-were causing compression problems, including corrupting long
-incompressible packets sometimes.
-
-* Fixes to the PAM and shadow password support in pppd, from Al
-Longyear and others.
-
-* Pppd now sets some environment variables for scripts it invokes
-(ip-up/down, auth-ip/down), giving information about the connection.
-The variables it sets are PEERNAME, IPLOCAL, IPREMOTE, UID, DEVICE,
-SPEED, and IFNAME.
-
-* Pppd now has an `updetach' option, which will cause it to detach
-from its controlling terminal once the link has come up (i.e. once it
-is available for IP traffic).
-
-
-What was new in ppp-2.3.3.
-**************************
-
-* Fixed compilation problems under SunOS.
-
-* Fixed a bug introduced into chat in 2.3.2, and compilation problems
-introduced into the MS-CHAP implementation in 2.3.2.
-
-* The linux kernel driver has been updated for recent 2.1-series
-kernel changes, and it now will ask kerneld to load compression
-modules when required, if the kernel is configured to support kerneld.
-
-* Pppd should now compile correctly under linux on systems with glibc.
-
-
-What was new in ppp-2.3.2.
-**************************
-
-* In 2.3.1, I made a change which was intended to make pppd able to
-detect loss of CD during or immediately after the connection script
-runs.  Unfortunately, this had the side-effect that the connection
-script wouldn't work at all on some systems.  This change has been
-reversed.
-
-* Fix compilation problems in the Linux kernel driver.
-
-
-What was new in ppp-2.3.1.
-**************************
-
-* Enhancements to chat, thanks to Francis Demierre.  Chat can now
-accept comments in the chat script file, and has new SAY, HANGUP,
-CLR_ABORT and CLR_REPORT keywords.
-
-* Fixed a bug which causes 2.3.0 to crash Solaris systems.
-
-* Bug-fixes and restructuring of the Linux kernel driver.
-
-* The holdoff behaviour of pppd has been changed slightly: now, if
-the link comes up for IP (or other network protocol) traffic, we
-consider that the link has been successfully established, and don't
-enforce the holdoff period after the link goes down.
-
-* Pppd should now correctly wait for CD (carrier detect) from the
-modem, even when the serial port initially had CLOCAL set, and it
-should also detect loss of CD during or immediately after the
-connection script runs.
-
-* Under linux, pppd will work with older 2.2.0* version kernel
-drivers, although demand-dialling is not supported with them.
-
-* Minor bugfixes for pppd.
-
-
-What was new in ppp-2.3.
-************************
-
-* Demand-dialling.  Pppd now has a mode where it will establish the
-network interface immediately when it starts, but not actually bring
-the link up until it sees some data to be sent.  Look for the demand
-option description in the pppd man page.  Demand-dialling is not
-supported under Ultrix or NeXTStep.
-
-* Idle timeout.  Pppd will optionally terminate the link if no data
-packets are sent or received within a certain time interval.
-
-* Pppd now runs the /etc/ppp/auth-up script, if it exists, when the
-peer successfully authenticates itself, and /etc/ppp/auth-down when
-the connection is subsequently terminated.  This can be useful for
-accounting purposes.
-
-* A new packet compression scheme, Deflate, has been implemented.
-This uses the same compression method as `gzip'.  This method is free
-of patent or copyright restrictions, and it achieves better
-compression than BSD-Compress.  It does consume more CPU cycles for
-compression than BSD-Compress, but this shouldn't be a problem for
-links running at 100kbit/s or less.
-
-* There is no code in this distribution which is covered by Brad
-Clements' restrictive copyright notice.  The STREAMS modules for SunOS
-and OSF/1 have been rewritten, based on the Solaris 2 modules, which
-were written from scratch without any Clements code.
-
-* Pppstats has been reworked to clean up the output format somewhat.
-It also has a new -d option which displays data rate in kbyte/s for
-those columns which would normally display bytes.
-
-* Pppd options beginning with - or + have been renamed, e.g. -ip
-became noip, +chap became require-chap, etc.  The old options are
-still accepted for compatibility but may be removed in future.
-
-* Pppd now has some options (such as the new `noauth' option) which
-can only be specified if it is being run by root, or in an
-"privileged" options file: /etc/ppp/options or an options file in the
-/etc/ppp/peers directory.  There is a new "call" option to read
-options from a file in /etc/ppp/peers, making it possible for non-root
-users to make unauthenticated connections, but only to certain trusted
-peers.  My intention is to make the `auth' option the default in a
-future release.
-
-* Several minor new features have been added to pppd, including the
-maxconnect and welcome options.  Pppd will now terminate the
-connection when there are no network control protocols running.  The
-allowed IP address(es) field in the secrets files can now specify
-subnets (with a notation like 123.45.67.89/24) and addresses which are
-not acceptable (put a ! on the front).
-
-* Numerous bugs have been fixed (no doubt some have been introduced :-)
-Thanks to those who reported bugs in ppp-2.2.
diff --git a/mdk-stage1/ppp/FAQ b/mdk-stage1/ppp/FAQ
deleted file mode 100644
index 96bc5c708..000000000
--- a/mdk-stage1/ppp/FAQ
+++ /dev/null
@@ -1,634 +0,0 @@
-This is a list of Frequently Asked Questions about using ppp-2.x and
-their answers.
-
-
-------------------------------------------------------------------------
-
-Q: Can you give me an example of how I might set up my machine to dial
-out to an ISP?
-
-A: Here's an example for dialling out to an ISP via a modem on
-/dev/tty02.  The modem uses hardware (CTS/RTS) flow control, and the
-serial port is run at 38400 baud.  The ISP assigns our IP address.
-
-To configure pppd for this connection, create a file under
-/etc/ppp/peers called (say) my-isp containing the following:
-
-tty02 crtscts 38400
-connect 'chat -v -f /etc/ppp/chat/my-isp'
-defaultroute
-
-The ppp connection is then initiated using the following command:
-
-pppd call my-isp
-
-Of course, if the directory containing pppd is not in your path, you
-will need to give the full pathname for pppd, for example,
-/usr/sbin/pppd.
-
-When you run this, pppd will use the chat program to dial the ISP and
-invoke its ppp service.  Chat will read the file specified with -f,
-namely /etc/ppp/chat/my-isp, to find a list of strings to expect to
-receive, and strings to send.  This file would contain something like
-this:
-
-ABORT "NO CARRIER"
-ABORT "NO DIALTONE"
-ABORT "ERROR"
-ABORT "NO ANSWER"
-ABORT "BUSY"
-ABORT "Username/Password Incorrect"
-"" "at"
-OK "at&d2&c1"
-OK "atdt2479381"
-"name:" "^Uusername"
-"word:" "\qpassword"
-"annex" "\q^Uppp"
-"Switching to PPP-ppp-Switching to PPP"
-
-You will need to change the details here.  The first string on each
-line is a string to expect to receive; the second is the string to
-send.  You can add or delete lines according to the dialog required to
-access your ISP's system.  This example is for a modem with a standard
-AT command set, dialling out to an Annex terminal server.  The \q
-toggles "quiet" mode; when quiet mode is on, the strings to be sent
-are replaced by ?????? in the log.  You may need to go through the
-dialog manually using kermit or tip first to determine what should go
-in the script.
-
-To terminate the link, run the following script, called (say)
-kill-ppp:
-
-#!/bin/sh
-unit=ppp${1-0}
-piddir=/var/run
-if [ -f $piddir/$unit.pid ]; then
-  kill -1 `cat $piddir/$unit.pid`
-fi
-
-On some systems (SunOS, Solaris, Ultrix), you will need to change
-/var/run to /etc/ppp.
-
-
-------------------------------------------------------------------------
-
-Q: Can you give me an example of how I could set up my office machine
-so I can dial in to it from home?
-
-A: Let's assume that the office machine is called "office" and is on a
-local ethernet subnet.  Call the home machine "home" and give it an IP
-address on the same subnet as "office".  We'll require both machines
-to authenticate themselves to each other.
-
-Set up the files on "office" as follows:
-
-/etc/ppp/options contains:
-
-auth		# require the peer to authenticate itself
-lock
-# other options can go here if desired
-
-/etc/ppp/chap-secrets contains:
-
-home	office	"beware the frub-jub"	home
-office	home	"bird, my son!%&*"	-
-
-Set up a modem on a serial port so that users can dial in to the
-modem and get a login prompt.
-
-On "home", set up the files as follows:
-
-/etc/ppp/options contains the same as on "office".
-
-/etc/ppp/chap-secrets contains:
-
-home	office	"beware the frub-jub"	-
-office	home	"bird, my son!%&*"	office
-
-Create a file called /etc/ppp/peers/office containing the following:
-
-tty02 crtscts 38400
-connect 'chat -v -f /etc/ppp/chat/office'
-defaultroute
-
-(You may need to change some of the details here.)
-
-Create the /etc/ppp/chat/office file containing the following:
-
-ABORT "NO CARRIER"
-ABORT "NO DIALTONE"
-ABORT "ERROR"
-ABORT "NO ANSWER"
-ABORT "BUSY"
-ABORT "ogin incorrect"
-"" "at"
-OK "at&d2&c1"
-OK "atdt2479381"
-"name:" "^Uusername"
-"word:" "\qpassword"
-"$" "\q^U/usr/sbin/pppd proxyarp"
-"~"
-
-You will need to change the details.  Note that the "$" in the
-second-last line is expecting the shell prompt after a successful
-login - you may need to change it to "%" or something else.
-
-You then initiate the connection (from home) with the command:
-
-pppd call office
-
-------------------------------------------------------------------------
-
-Q: When I try to establish a connection, the modem successfully dials
-the remote system, but then hangs up a few seconds later.  How do I
-find out what's going wrong?
-
-A: There are a number of possible problems here.  The first thing to
-do is to ensure that pppd's messages are visible.  Pppd uses the
-syslog facility to log messages which help to identify specific
-problems.  Messages from pppd have facility "daemon" and levels
-ranging from "debug" to "error".
-
-Usually it is useful to see messages of level "notice" or higher on
-the console.  To see these, find the line in /etc/syslog.conf which
-has /dev/console on the right-hand side, and add "daemon.notice" in
-the list on the left.  The line will end up looking something like
-this:
-
-*.err;kern.debug;auth.notice;mail.crit;daemon.notice	/dev/console
-
-Note that the whitespace is tabs, *not* spaces.
-
-If you are having problems, it may be useful to see messages of level
-"info" as well, in which case you would change "daemon.notice" to
-"daemon.info".
-
-In addition, it is useful to collect pppd's debugging output in a
-file - the debug option to pppd causes it to log the contents of all
-control packets sent and received in human-readable form.  To do this,
-add a line like this to /etc/syslog.conf:
-
-daemon,local2.debug		/etc/ppp/log
-
-and create an empty /etc/ppp/log file.
-
-When you change syslog.conf, you will need to send a HUP signal to
-syslogd to causes it to re-read syslog.conf.  You can do this with a
-command like this (as root):
-
-	kill -HUP `cat /etc/syslogd.pid`
-
-(On some systems, you need to use /var/run/syslog.pid instead of
-/etc/syslogd.pid.)
-
-After setting up syslog like this, you can use the -v flag to chat and
-the `debug' option to pppd to get more information.  Try initiating
-the connection again; when it fails, inspect /etc/ppp/log to see what
-happened and where the connection failed.
-
-
-------------------------------------------------------------------------
-
-Q: When I try to establish a connection, I get an error message saying
-"Serial link is not 8-bit clean".  Why?
-
-A: The most common cause is that your connection script hasn't
-successfully dialled out to the remote system and invoked ppp service
-there.  Instead, pppd is talking to something (a shell or login
-process on the remote machine, or maybe just the modem) which is only
-outputting 7-bit characters.
-
-This can also arise with a modem which uses an AT command set if the
-dial command is issued before pppd is invoked, rather than within a
-connect script started by pppd.  If the serial port is set to 7
-bits/character plus parity when the last AT command is issued, the
-modem serial port will be set to the same setting.
-
-Note that pppd *always* sets the local serial port to 8 bits per
-character, with no parity and 1 stop bit.  So you shouldn't need to
-issue an stty command before invoking pppd.
-
-
-------------------------------------------------------------------------
-
-Q: When I try to establish a connection, I get an error message saying
-"Serial line is looped back".  Why?
-
-A: Probably your connection script hasn't successfully dialled out to
-the remote system and invoked ppp service there.  Instead, pppd is
-talking to something which is just echoing back the characters it
-receives.  The -v option to chat can help you find out what's going
-on.  It can be useful to include "~" as the last expect string to
-chat, so chat won't return until it's seen the start of the first PPP
-frame from the remote system.
-
-Another possibility is that your phone connection has dropped for some
-obscure reason and the modem is echoing the characters it receives
-from your system.
-
-
-------------------------------------------------------------------------
-
-Q: I installed pppd successfully, but when I try to run it, I get a
-message saying something like "peer authentication required but no
-authentication files accessible".
-
-A: When pppd is used on a machine which already has a connection to
-the Internet (or to be more precise, one which has a default route in
-its routing table), it will require all peers to authenticate
-themselves.  The reason for this is that if you don't require
-authentication, you have a security hole, because the peer can
-basically choose any IP address it wants, even the IP address of some
-trusted host (for example, a host mentioned in some .rhosts file).
-
-On machines which don't have a default route, pppd does not require
-the peer to authenticate itself.  The reason is that such machines
-would mostly be using pppd to dial out to an ISP which will refuse to
-authenticate itself.  In that case the peer can use any IP address as
-long as the system does not already have a route to that address.
-For example, if you have a local ethernet network, the peer can't use
-an address on that network.  (In fact it could if it authenticated
-itself and it was permitted to use that address by the pap-secrets or
-chap-secrets file.)
-
-There are 3 ways around the problem:
-
-1. If possible, arrange for the peer to authenticate itself, and
-create the necessary secrets files (/etc/ppp/pap-secrets and/or
-/etc/ppp/chap-secrets).
-
-2. If the peer refuses to authenticate itself, and will always be
-using the same IP address, or one of a small set of IP addresses, you
-can create an entry in the /etc/ppp/pap-secrets file like this:
-
-  ""	  *	  ""	  his-ip.his-domain his-other-ip.other-domain
-
-(that is, using the empty string for the client name and password
-fields).  Of couse, you replace the 4th and following fields in the
-example above with the IP address(es) that the peer may use.  You can
-use either hostnames or numeric IP addresses.
-
-3. You can add the `noauth' option to the /etc/ppp/options file.
-Pppd will then not ask the peer to authenticate itself.  If you do
-this, I *strongly* recommend that you remove the set-uid bit from the
-permissions on the pppd executable, with a command like this:
-
-	chmod u-s /usr/sbin/pppd
-
-Then, an intruder could only use pppd maliciously if they had already
-become root, in which case they couldn't do any more damage using pppd
-than they could anyway.
-
-
-------------------------------------------------------------------------
-
-Q: What do I need to put in the secrets files?
-
-A: Three things:
-   - secrets (i.e. passwords) to use for authenticating this host to
-     other hosts (i.e., for proving our identity to others);
-   - secrets which other hosts can use for authenticating themselves
-     to us (i.e., so that they can prove their identity to us); and
-   - information about which IP addresses other hosts may use, once
-     they have authenticated themselves.
-
-There are two authentication files: /etc/ppp/pap-secrets, which
-contains secrets for use with PAP (the Password Authentication
-Protocol), and /etc/ppp/chap-secrets, which contains secrets for use
-with CHAP (the Challenge Handshake Authentication Protocol).  Both
-files have the same simple format, which is as follows:
-
-- The file contains a series of entries, each of which contains a
-secret for authenticating one machine to another.
-
-- Each entry is contained on a single logical line.  A logical line
-may be continued across several lines by placing a backslash (\) at
-the end of each line except the last.
-
-- Each entry has 3 or more fields, separated by whitespace (spaces
-and/or tabs).  These fields are, in order:
-	* The name of the machine that is authenticating itself
-	  (the "client").
-	* The name of the machine that is authenticating the client
-	  (the "server").
-	* The secret to be used for authenticating that client to that
-	  server.  If this field begins with the at-sign `@', the rest
-	  of the field is taken as the name of a file containing the
-	  actual secret.
-	* The 4th and any following fields list the IP address(es)
-	  that the client may use.
-
-- The file may contain comments, which begin with a `#' and continue
-to the end of the line.
-
-- Double quotes `"' should be used around a field if it contains
-characters with special significance, such as space, tab, `#', etc.
-
-- The backslash `\' may be used before characters with special
-significance (space, tab, `#', `\', etc.) to remove that significance.
-
-Some important points to note:
-
-* A machine can be *both* a "client" and a "server" for the purposes
-of authentication - this happens when both peers require the other to
-authenticate itself.  So A would authenticate itself to B, and B would
-also authenticate itself to A (possibly using a different
-authentication protocol).
-
-* If both the "client" and the "server" are running ppp-2.x, they need
-to have a similar entry in the appropriate secrets file; the first two
-fields are *not* swapped on the client, compared to the server.  So
-the client might have an entry like this:
-
-	ay	bee	"our little secret"	-
-
-and the corresponding entry on the server could look like this:
-
-	ay	bee	"our little secret"	123.45.67.89
-
-
-------------------------------------------------------------------------
-
-Q: Explain about PAP and CHAP?
-
-PAP stands for the Password Authentication Protocol.  With this
-protocol, the "client" (the machine that needs to authenticate itself)
-sends its name and a password, in clear text, to the "server".  The
-server returns a message indicating whether the name and password are
-valid.
-
-CHAP stands for the Challenge Handshake Authentication Protocol.  It
-is designed to address some of the deficiencies and vulnerabilities of
-PAP.  Like PAP, it is based on the client and server having a shared
-secret, but the secret is never passed in clear text over the link.
-Instead, the server sends a "challenge" - an arbitrary string of
-bytes, and the client must prove it knows the shared secret by
-generating a hash value from the challenge combined with the shared
-secret, and sending the hash value back to the server.  The server
-also generates the hash value and compares it with the value received
-from the client.
-
-At a practical level, CHAP can be slightly easier to configure than
-PAP because the server sends its name with the challenge.  Thus, when
-finding the appropriate secret in the secrets file, the client knows
-the server's name.  In contrast, with PAP, the client has to find its
-password (i.e. the shared secret) before it has received anything from
-the server.  Thus, it may be necessary to use the `remotename' option
-to pppd when using PAP authentication so that it can select the
-appropriate secret from /etc/ppp/pap-secrets.
-
-Microsoft also has a variant of CHAP which uses a different hashing
-arrangement from normal CHAP.  There is a client-side implementation
-of Microsoft's CHAP in ppp-2.3; see README.MSCHAP80.
-
-
-------------------------------------------------------------------------
-
-Q: When the modem hangs up, without the remote system having
-terminated the connection properly, pppd does not notice the hangup,
-but just keeps running.  How do I get pppd to notice the hangup and
-exit?
-
-A: Pppd detects modem hangup by looking for an end-of-file indication
-from the serial driver, which should be generated when the CD (carrier
-detect) signal on the serial port is deasserted.  For this to work:
-
-- The modem has to be set to assert CD when the connection is made and
-deassert it when the phone line hangs up.  Usually the AT&C1 modem
-command sets this mode.
-
-- The cable from the modem to the serial port must connect the CD
-signal (on pin 8).
-
-- Some serial drivers have a "software carrier detect" mode, which
-must be *disabled*.  The method of doing this varies between systems.
-Under SunOS, use the ttysoftcar command.  Under NetBSD, edit /etc/ttys
-to remove the "softcar" flag from the line for the serial port, and
-run ttyflags.
-
-
-------------------------------------------------------------------------
-
-Q: Why should I use PPP compression (BSD-Compress or Deflate) when my
-modem already does V.42 compression?  Won't it slow the CPU down a
-lot?
-
-A: Using PPP compression is preferable, especially when using modems
-over phone lines, for the following reasons:
-
-- The V.42 compression in the modem isn't very strong - it's an LZW
-technique (same as BSD-Compress) with a 10, 11 or 12 bit code size.
-With BSD-Compress you can use a code size of up to 15 bits and get
-much better compression, or you can use Deflate and get even better
-compression ratios.
-
-- I have found that enabling V.42 compression in my 14.4k modem
-increases the round-trip time for a character to be sent, echoed and
-returned by around 40ms, from 160ms to 200ms (with error correction
-enabled).  This is enough to make it feel less responsive on rlogin or
-telnet sessions.  Using PPP compression adds less than 5ms (small
-enough that I couldn't measure it reliably).  I admit my modem is a
-cheapie and other modems may well perform better.
-
-- While compression and decompression do require some CPU time, they
-reduce the amount of time spent in the serial driver to transmit a
-given amount of data.  Many machines require an interrupt for each
-character sent or received, and the interrupt handler can take a
-significant amount of CPU time.  So the increase in CPU load isn't as
-great as you might think.  My measurements indicate that a system with
-a 33MHz 486 CPU should be able to do Deflate compression for serial
-link speeds of up to 100kb/s or more.  It depends somewhat on the type
-of data, of course; for example, when compressing a string of nulls
-with Deflate, it's hard to get a high output data rate from the
-compressor, simply because it compresses strings of nulls so well that
-it has to eat a very large amount of input data to get each byte of
-output.
-
-
-------------------------------------------------------------------------
-
-Q: I get messages saying "Unsupported protocol (...) received".  What do
-these mean?
-
-A: If you only get one or two when pppd starts negotiating with the
-peer, they mean that the peer wanted to negotiate some PPP protocol
-that pppd doesn't understand.  This doesn't represent a problem, it
-simply means that there is some functionality that the peer supports
-that pppd doesn't, so that functionality can't be used.
-
-If you get them sporadically while the link is operating, or if the
-protocol numbers (in parentheses) don't correspond to any valid PPP
-protocol that the peer might be using, then the problem is probably
-that characters are getting corrupted on the receive side, or that
-extra characters are being inserted into the receive stream somehow.
-If this is happening, most packets that get corrupted should get
-discarded by the FCS (Frame Check Sequence, a 16-bit CRC) check, but a
-small number may get through.
-
-One possibility may be that you are receiving broadcast messages on
-the remote system which are being sent over your serial link.  Another
-possibility is that your modem is set for XON/XOFF (software) flow
-control and is inserting ^Q and ^S characters into the receive data
-stream.
-
-
-------------------------------------------------------------------------
-
-Q: I get messages saying "Protocol-Reject for unsupported protocol ...".
-What do these mean?
-
-A: This is the other side of the previous question.  If characters are
-getting corrupted on the way to the peer, or if your system is
-inserting extra bogus characters into the transmit data stream, the
-peer may send protocol-reject messages to you, resulting in the above
-message (since your pppd doesn't recognize the protocol number
-either.)
-
-
-------------------------------------------------------------------------
-
-Q: I get a message saying something like "ioctl(TIOCSETD): Operation
-not permitted".  How do I fix this?
-
-A: This is because pppd is not running as root.  If you have not
-installed pppd setuid-root, you will have to be root to run it.  If
-you have installed pppd setuid-root and you still get this message, it
-is probably because your shell is using some other copy of pppd than
-the installed one - for example, if you are in the pppd directory
-where you've just built pppd and your $PATH has . before /usr/sbin (or
-wherever pppd gets installed).
-
-
-------------------------------------------------------------------------
-
-Q: Has your package been ported to HP/UX or IRIX or AIX?
-
-A: No.  I don't have access to systems running HP/UX or AIX.  No-one
-has volunteered to port it to HP/UX.  I had someone who did a port for
-AIX 4.x, but who is no longer able to maintain it.  And apparently AIX
-3.x is quite different, so it would need a separate port.
-
-IRIX includes a good PPP implementation in the standard distribution,
-as far as I know.
-
-
-------------------------------------------------------------------------
-
-Q: Under SunOS 4, when I try to modload the ppp modules, I get the
-message "can't open /dev/vd: No such device".
-
-A: First check in /dev that there is an entry like this:
-
-crw-r--r--  1  root         57,   0 Oct 2  1991 vd
-
-If not, make one (mknod /dev/vd c 57 0).  If the problem still exists,
-probably your kernel has been configured without the vd driver
-included.  The vd driver is needed for loadable module support.
-
-First, identify the config file that was used.  When you boot your
-machine, or if you run /etc/dmesg, you'll see a line that looks
-something like this:
-
-SunOS Release 4.1.3_U1 (CAP_XBOX) #7: Thu Mar 21 15:31:56 EST 1996
-			^^^^^^^^
-			this is the config file name
-
-The config file will be in the /sys/`arch -k`/conf directory (arch -k
-should return sun4m for a SparcStation 10, sun3x for a Sun 3/80,
-etc.).  Look in there for a line saying "options VDDRV".  If that line
-isn't present (or is commented out), add it (or uncomment it).
-
-You then need to rebuild the kernel as described in the SunOS
-manuals.  Basically you need to run config and make like this:
-
-	/usr/etc/config CAP_XBOX
-	cd ../CAP_XBOX
-	make
-
-(replacing the string CAP_XBOX by the name of the config file for your
-kernel, of course).
-
-Then copy the new kernel to /:
-
-	mv /vmunix /vmunix.working
-	cp vmunix /
-
-and reboot.  Modload should then work.
-
-
-------------------------------------------------------------------------
-
-Q: I'm running Linux (or NetBSD or FreeBSD), and my system comes with
-PPP already.  Should I consider installing this package?  Why?
-
-A: The PPP that is already installed in your system is (or is derived
-from) some version of this PPP package.  You can find out what version
-of this package is already installed with the command "pppd --help".
-If this is older than the latest version, you may wish to install the
-latest version so that you can take advantage of the new features or
-bug fixes.
-
-
-------------------------------------------------------------------------
-
-Q: I'm running pppd in demand mode, and I find that pppd often dials
-out unnecessarily when I try to make a connection within my local
-machine or with a machine on my local LAN.  What can I do about this?
-
-A: Very often the cause of this is that a program is trying to contact
-a nameserver to resolve a hostname, and the nameserver (specified in
-/etc/resolv.conf, usually) is on the far side of the ppp link.  You
-can try executing a command such as `ping myhost' (where myhost is the
-name of the local machine, or some other machine on a local LAN), to
-see whether that starts the ppp link.  If it does, check the setup of
-your /etc/hosts file to make sure you have the local machine and any
-hosts on your local LAN listed, and /etc/resolv.conf and/or
-/etc/nsswitch.conf files to make sure you resolve hostnames from
-/etc/hosts if possible before trying to contact a nameserver.
-
-
-------------------------------------------------------------------------
-
-Q: Since I installed ppp-2.3.6, dialin users to my server have been
-getting this message when they run pppd:
-
-peer authentication required but no suitable secret(s) found for 
-authenticating any peer to us (ispserver)
-
-A: In 2.3.6, the default is to let an unauthenticated peer only use IP
-addresses to which the machine doesn't already have a route.  So on a
-machine with a default route, everyone has to authenticate.  If you
-really don't want that, you can put `noauth' in the /etc/ppp/options
-file.  Note that there is then no check on who is using which IP
-address.  IMHO, this is undesirably insecure, but I guess it may be
-tolerable as long as you don't use any .rhosts files or anything like
-that.  I recommend that you require dialin users to authenticate, even
-if just with PAP using their login password (using the `login' option
-to pppd).  If you do use `noauth', you should at least have a pppusers
-group and set the permissions on pppd to allow only user and group to
-execute it.
-
-------------------------------------------------------------------------
-
-Q: When running pppd as a dial-in server, I often get the message
-"LCP: timeout sending Config-Requests" from pppd.  It seems to be
-random, but dial-out always works fine.  What is wrong?
-
-A: Most modern modems auto-detects the speed of the serial line
-between the modem and the computer.  This auto-detection occurs when
-the computer sends characters to the modem, when the modem is in
-command mode.  It does not occur when the modem is in data mode.
-Thus, if you send commands to the modem at 2400 bps, and then change
-the serial port speed to 115200 bps, the modem will not detect this
-change until something is transmitted from the computer to the modem.
-When running pppd in dial-in mode (i.e. without a connect script),
-pppd sets the speed of the serial port, but does not transmit
-anything.  If the modem was already running at the specified speed,
-everything is fine, but if not, you will just receive garbage from the
-modem.  To cure this, use an init script such as the following:
-
-	pppd ttyS0 115200 modem crtscts init "chat '' AT OK"
-
-To reset the modem and enable auto-answer, use:
-
-	pppd ttyS0 115200 modem crtscts init "chat '' ATZ OK ATS0=1 OK"
diff --git a/mdk-stage1/ppp/PLUGINS b/mdk-stage1/ppp/PLUGINS
deleted file mode 100644
index 5f17e1d0a..000000000
--- a/mdk-stage1/ppp/PLUGINS
+++ /dev/null
@@ -1,131 +0,0 @@
-Starting with version 2.3.10, pppd includes support for `plugins' -
-pieces of code which can be loaded into pppd at runtime and which can
-affect its behaviour in various ways.  The idea of plugins is to
-provide a way for people to customize the behaviour of pppd without
-having to either apply local patches to each version or get their
-patches accepted into the standard distribution.  My aim is that
-plugins will be able to be used with successive versions of pppd
-without needing to recompile the plugins.
-
-A plugin is a standard shared library object, typically with a name
-ending in .so.  They are loaded using the standard dlopen() library
-call, so plugins are only supported on systems which support shared
-libraries and the dlopen call.  At present pppd is compiled with
-plugin support only under Linux and Solaris.
-
-Plugins are loaded into pppd using the `plugin' option, which takes
-one argument, the name of a shared object file.  The plugin option is
-a privileged option.  I suggest that you give the full path name of
-the shared object file; if you don't, it may be possible for
-unscrupulous users to substitute another shared object file for the
-one you mean to load, e.g. by setting the LD_LIBRARY_PATH variable.
-
-Plugins are usually written in C and compiled and linked to a shared
-object file in the appropriate manner for your platform.  Using gcc
-under Linux, a plugin called `xyz' could be compiled and linked with
-the following commands:
-
-	gcc -c -O xyz.c
-	gcc -shared -o xyz.so xyz.o
-
-There are some example plugins in the pppd/plugins directory in the
-ppp distribution.  Currently there is one example, minconn.c, which
-implements a `minconnect' option, which specifies a minimum connect
-time before the idle timeout applies.
-
-Plugins can access global variables within pppd, so it is useful for
-them to #include "pppd.h" from the pppd source directory.
-
-Every plugin must contain a global procedure called `plugin_init'.
-This procedure will get called (with no arguments) immediately after
-the plugin is loaded.
-
-Plugins can affect the behaviour of pppd in at least three ways:
-
-1. They can add extra options which pppd will then recognize.  This is
-   done by calling the add_options() procedure with a pointer to an
-   array of option_t structures.  The last entry in the array must
-   have its name field set to NULL.
-
-2. Pppd contains `hook' variables which are procedure pointers.  If a
-   given hook is not NULL, pppd will call the procedure it points to
-   at the appropriate point in its processing.  The plugin can set any
-   of these hooks to point to its own procedures.  See below for a
-   description of the hooks which are currently implemented.
-
-3. Plugin code can call any global procedures and access any global
-   variables in pppd.
-
-Here is a list of the currently implemented hooks in pppd.
-
-
-int (*idle_time_hook)(struct ppp_idle *idlep);
-
-The idle_time_hook is called when the link first comes up (i.e. when
-the first network protocol comes up) and at intervals thereafter.  On
-the first call, the idlep parameter is NULL, and the return value is
-the number of seconds before pppd should check the link activity, or 0
-if there is to be no idle timeout.
-
-On subsequent calls, idlep points to a structure giving the number of
-seconds since the last packets were sent and received.  If the return
-value is > 0, pppd will wait that many seconds before checking again.
-If it is <= 0, that indicates that the link should be terminated due
-to lack of activity.
-
-
-int (*holdoff_hook)(void);
-
-The holdoff_hook is called when an attempt to bring up the link fails,
-or the link is terminated, and the persist or demand option was used.
-It returns the number of seconds that pppd should wait before trying
-to reestablish the link (0 means immediately).
-
-
-int (*pap_check_hook)(void);
-int (*pap_passwd_hook)(char *user, char *passwd);
-int (*pap_auth_hook)(char *user, int userlen,
-		     char *passwd, int passlen,
-		     char **msgp, int *msglenp,
-		     struct wordlist **paddrs,
-		     struct wordlist **popts);
-
-These hooks are designed to allow a plugin to replace the normal PAP
-password processing in pppd with something different (e.g. contacting
-an external server).
-
-The pap_check_hook is called to check whether there is any possibility
-that the peer could authenticate itself to us.  If it returns 1, pppd
-will ask the peer to authenticate itself.  If it returns 0, pppd will
-not ask the peer to authenticate itself (but if authentication is
-required, pppd may exit, or terminate the link before network protocol
-negotiation).  If it returns -1, pppd will look in the pap-secrets
-file as it would normally.
-
-The pap_passwd_hook is called to determine what username and password
-pppd should use in authenticating itself to the peer with PAP.  The
-user string will already be initialized, by the `user' option, the
-`name' option, or from the hostname, but can be changed if necessary.
-MAXNAMELEN bytes of space are available at *user, and MAXSECRETLEN
-bytes of space at *passwd.  If this hook returns 0, pppd will use the
-values at *user and *passwd; if it returns -1, pppd will look in the
-pap-secrets file, or use the value from the +ua or password option, as
-it would normally.
-
-The pap_auth_hook is called to determine whether the username and
-password supplied by the peer are valid.  user and passwd point to
-null-terminated strings containing the username and password supplied
-by the peer, with non-printable characters converted to a printable
-form.  The pap_auth_hook function should set msg to a string to be
-returned to the peer and return 1 if the username/password was valid
-and 0 if not.  If the hook returns -1, pppd will look in the
-pap-secrets file as usual.
-
-If the username/password was valid, the hook can set *paddrs to point
-to a wordlist containing the IP address(es) which the peer is
-permitted to use, formatted as in the pap-secrets file.  It can also
-set *popts to a wordlist containing any extra options for this user
-which pppd should apply at this point.
-
-
-## $Id: PLUGINS 195720 2001-06-11 11:44:34Z gc $ ##
diff --git a/mdk-stage1/ppp/README b/mdk-stage1/ppp/README
deleted file mode 100644
index 0967fc92a..000000000
--- a/mdk-stage1/ppp/README
+++ /dev/null
@@ -1,168 +0,0 @@
-This is the README file for ppp-2.4, a package which implements the
-Point-to-Point Protocol (PPP) to provide Internet connections over
-serial lines.
-
-
-Introduction.
-*************
-
-The Point-to-Point Protocol (PPP) provides a standard way to establish
-a network connection over a serial link.  At present, this package
-supports IP and the protocols layered above IP, such as TCP and UDP.
-The Linux and Solaris ports of this package have optional support for
-IPV6; the Linux port of this package also has support for IPX.
-
-This software consists of two parts:
-
-- Kernel code, which establishes a network interface and passes
-packets between the serial port, the kernel networking code and the
-PPP daemon (pppd).  This code is implemented using STREAMS modules on
-SunOS 4.x and Solaris, and as a line discipline under Linux and FreeBSD.
-
-- The PPP daemon (pppd), which negotiates with the peer to establish
-the link and sets up the ppp network interface.  Pppd includes support
-for authentication, so you can control which other systems may make a
-PPP connection and what IP addresses they may use.
-
-The primary platforms supported by this package are Linux and Solaris.
-Code for SunOS 4.x is included here but is largely untested.  I have
-code for NeXTStep, FreeBSD, SVR4, Tru64 (Digital Unix), AIX and Ultrix
-but no active maintainers for these platforms.  Code for all of these
-except AIX is included in the ppp-2.3.11 release.
-
-
-Installation.
-*************
-
-The file SETUP contains general information about setting up your
-system for using PPP.  There is also a README file for each supported
-system, which contains more specific details for installing PPP on
-that system.  The supported systems, and the corresponding README
-files, are:
-
-	Linux				README.linux
-	Solaris 2			README.sol2
-	SunOS 4.x			README.sunos4
-
-In each case you start by running the ./configure script.  This works
-out which operating system you are using and creates symbolic links to
-the appropriate makefiles.  You then run `make' to compile the
-user-level code, and (as root) `make install' to install the
-user-level programs pppd, chat and pppstats.
-
-N.B. Since 2.3.0, leaving the permitted IP addresses column of the
-pap-secrets or chap-secrets file empty means that no addresses are
-permitted.  You need to put a "*" in that column to allow the peer to
-use any IP address.  (This only applies where the peer is
-authenticating itself to you, of course.)
-
-
-What's new in ppp-2.4.1.
-************************
-
-* Pppd can now print out the set of options that are in effect.  The
-  new `dump' option causes pppd to print out the option values after
-  option parsing is complete.  The `dryrun' option causes pppd to
-  print the options and then exit.
-
-* The option parsing code has been fixed so that options in the
-  per-tty options file are parsed correctly, and don't override values
-  from the command line in most cases.
-
-* The plugin option now looks in /usr/lib/pppd/<pppd-version> (for
-  example, /usr/lib/pppd/2.4.1b1) for shared objects for plugins if
-  there is no slash in the plugin name.
-
-* When loading a plugin, pppd will now check the version of pppd for
-  which the plugin was compiled, and refuse to load it if it is
-  different to pppd's version string.  To enable this, the plugin
-  source needs to #include "pppd.h" and have a line saying:
-	char pppd_version[] = VERSION;
-
-* There is a bug in zlib, discovered by James Carlson, which can cause
-  kernel memory corruption if Deflate is used with the lowest setting,
-  8.  As a workaround pppd will now insist on using at least 9.
-
-* Pppd should compile on Solaris and SunOS again.
-
-* Pppd should now set the MTU correctly on demand-dialled interfaces.
-
-
-What was new in ppp-2.4.0.
-**************************
-
-* Multilink: this package now allows you to combine multiple serial
-  links into one logical link or `bundle', for increased bandwidth and
-  reduced latency.  This is currently only supported under the
-  Linux-2.3.99pre5 or later kernels.
-
-* All the pppd processes running on a system now write information
-  into a common database.  I used the `tdb' code from samba for this.
-
-* New hooks have been added.
-
-For a list of the changes made during the 2.3 series releases of this
-package, see the Changes-2.3 file.
-
-
-Compression methods.
-********************
-
-This package supports two packet compression methods: Deflate and
-BSD-Compress.  Other compression methods which are in common use
-include Predictor, LZS, and MPPC.  These methods are not supported for
-two reasons - they are patent-encumbered, and they cause some packets
-to expand slightly, which pppd doesn't currently allow for.
-BSD-Compress is also patent-encumbered (its inclusion in this package
-can be considered a historical anomaly :-) but it doesn't ever expand
-packets.  Neither does Deflate, which uses the same algorithm as gzip.
-
-
-Patents.
-********
-
-The BSD-Compress algorithm used for packet compression is the same as
-that used in the Unix "compress" command.  It is apparently covered by
-U.S. patents 4,814,746 (owned by IBM) and 4,558,302 (owned by Unisys),
-and corresponding patents in various other countries (but not
-Australia).  If this is of concern, you can build the package without
-including BSD-Compress.  To do this, edit net/ppp-comp.h to change the
-definition of DO_BSD_COMPRESS to 0.  The bsd-comp.c files are then no
-longer needed, so the references to bsd-comp.o may optionally be
-removed from the Makefiles.
-
-
-Contacts.
-*********
-
-The comp.protocols.ppp newsgroup is a useful place to get help if you
-have trouble getting your ppp connections to work.  Please do not send
-me questions of the form "please help me get connected to my ISP" -
-I'm sorry, but I simply do not have the time to answer all the
-questions like this that I get.
-
-If you find bugs in this package, please report them to the maintainer
-for the port for the operating system you are using:
-
-Linux			Paul Mackerras <paulus@linuxcare.com>
-Solaris 2		James Carlson <james.d.carlson@east.sun.com>
-SunOS 4.x		Adi Masputra <adi.masputra@sun.com>
-
-
-Copyrights:
-***********
-
-All of the code can be freely used and redistributed.  The individual
-source files each have their own copyright and permission notice; some
-have a BSD-style notice and some are under the GPL.
-
-
-Distribution:
-*************
-
-The primary site for releases of this software is:
-
-	ftp://linuxcare.com.au/pub/ppp/
-
-
-($Id: README 195720 2001-06-11 11:44:34Z gc $)
diff --git a/mdk-stage1/ppp/README.MSCHAP80 b/mdk-stage1/ppp/README.MSCHAP80
deleted file mode 100644
index d3ed291b7..000000000
--- a/mdk-stage1/ppp/README.MSCHAP80
+++ /dev/null
@@ -1,284 +0,0 @@
-PPP Client Support for Microsoft's CHAP-80
-==========================================
-
-Eric Rosenquist          rosenqui@strataware.com
-(updated by Paul Mackerras)
-(updated by Al Longyear)
-(updated by Farrell Woods)
-
-INTRODUCTION
-
-Microsoft has introduced an extension to the Challenge/Handshake
-Authentication Protocol (CHAP) which avoids storing cleartext
-passwords on a server.  (Unfortunately, this is not as secure as it
-sounds, because the encrypted password stored on a server can be used
-by a bogus client to gain access to the server just as easily as if
-the password were stored in cleartext.)  The details of the Microsoft
-extensions can be found in the document:
-
-    <ftp://ftp.microsoft.com/developr/rfc/chapexts.txt>
-
-In short, MS-CHAP is identified as <auth chap 80> since the hex value
-of 80 is used to designate Microsoft's scheme.  Standard PPP CHAP uses
-a value of 5.  If you enable PPP debugging with the "debug" option and
-see something like the following in your logs, the remote server is
-requesting MS-CHAP:
-
-  rcvd [LCP ConfReq id=0x2 <asyncmap 0x0> <auth chap 80> <magic 0x46a3>]
-                                           ^^^^^^^^^^^^
-
-The standard pppd implementation will indicate its lack of support for
-MS-CHAP by NAKing it:
-
-  sent [LCP ConfNak id=0x2 <auth chap 05>]
-
-Windows NT Server systems are often configured to "Accept only
-Microsoft Authentication" (this is intended to enhance security).  Up
-until now, that meant that you couldn't use this version of PPPD to
-connect to such a system.  I've managed to get a client-only
-implementation of MS-CHAP working; it will authenticate itself to
-another system using MS-CHAP, but if you're using PPPD as a dial-in
-server, you won't be able to use MS-CHAP to authenticate the clients.
-This would not be a lot of extra work given that the framework is in
-place, but I didn't need it myself so I didn't implement it.
-
-
-BUILDING THE PPPD
-
-MS-CHAP uses a combination of MD4 hashing and DES encryption for
-authentication.  You may need to get Eric Young's libdes library in
-order to use my MS-CHAP extensions.  A lot of UNIX systems already
-have DES encryption available via the crypt(3), encrypt(3) and
-setkey(3) interfaces.  Some may (such as that on Digital UNIX)
-provide only the encryption mechanism and will not perform
-decryption.  This is okay.  We only need to encrypt to perform
-MS-CHAP authentication.
-
-If you have encrypt/setkey available, then hopefully you need only
-define these two things in your Makefile: -DUSE_CRYPT and -DCHAPMS.
-Skip the paragraphs below about obtaining and building libdes.  Do
-the "make clean" and "make" as described below.  Linux users
-should not need to modify their Makefiles.  Instead,
-just do "make CHAPMS=1 USE_CRYPT=1".
-
-If you don't have encrypt and setkey, you will need Eric Young's
-libdes library.  You can find it in:
-
-ftp://ftp.funet.fi/pub/crypt/mirrors/ftp.psy.uq.oz.au/DES/libdes-3.06.tar.gz
-
-Australian residents can get libdes from Eric Young's site:
-
-ftp://ftp.psy.uq.oz.au/pub/Crypto/DES/libdes-3.06.tar.gz
-
-It is also available on many other sites (ask Archie).
-
-I used libdes-3.06, but hopefully anything newer than that will work
-also.  Get the library, build and test it on your system, and install
-it somewhere (typically /usr/local/lib and /usr/local/include).
-
-
-
-You should now be ready to (re)compile the PPPD.  Go to the pppd
-subdirectory and make sure the Makefile contains "-DCHAPMS" in the
-CFLAGS or COMPILE_FLAGS macro, and that the LIBS macro (or LDADD for
-BSD systems) contains "-ldes".  Depending on your system and where the
-DES library was installed, you may also need to alter the include and
-library paths used by your compiler.
-
-Do a "make clean" and then a "make" to rebuild pppd.  Assuming all
-goes well, install the new pppd and move on to the CONFIGURATION
-section.
-
-
-CONFIGURATION
-
-If you've never used PPPD with CHAP before, read the man page (type
-"man pppd") and read the description in there.  Basically, you need to
-edit the "chap-secrets" file typically named /etc/ppp/chap-secrets.
-This should contain the following two lines for each system with which
-you use CHAP (with no leading blanks):
-
-    RemoteHost  Account     Secret
-    Account     RemoteHost  Secret
-
-Note that you need both lines and that item 1 and 2 are swapped in the
-second line.  I'm not sure why you need it twice, but it works and I didn't
-have time to look into it further.  The "RemoteHost" is a somewhat
-arbitrary name for the remote Windows NT system you're dialing.  It doesn't
-have to match the NT system's name, but it *does* have to match what you
-use with the "remotename" parameter.  The "Account" is the Windows NT
-account name you have been told to use when dialing, and the "Secret" is
-the password for that account.  For example, if your service provider calls
-their machine "DialupNT" and tells you your account and password are
-"customer47" and "foobar", add the following to your chap-secrets file:
-
-    DialupNT    customer47  foobar
-    customer47  DialupNT    foobar
-
-The only other thing you need to do for MS-CHAP (compared to normal CHAP)
-is to always use the "remotename" option, either on the command line or in
-your "options" file (see the pppd man page for details).  In the case of
-the above example, you would need to use the following command line:
-
-    pppd name customer47 remotename DialupNT <other options>
-
-or add:
-
-    name customer47
-    remotename DialupNT
-
-to your PPPD "options" file.
-
-The "remotename" option is required for MS-CHAP since Microsoft PPP servers
-don't send their system name in the CHAP challenge packet.
-
-
-E=691 (AUTHENTICATION_FAILURE) ERRORS WHEN YOU HAVE THE VALID SECRET (PASSWORD)
-
-If your RAS server is not the domain controller and is not a 'stand-alone'
-server then it must make a query to the domain controller for your domain.
-
-You need to specify the domain name with the user name when you attempt to
-use this type of a configuration. The domain name is specified with the
-local name in the chap-secrets file and with the option for the 'name'
-parameter.
-
-For example, the previous example would become:
-
-    DialupNT            domain\\customer47   foobar
-    domain\\customer47  DialupNT             foobar
-
-and
-
-    pppd name 'domain\\customer47' remotename DialupNT <other options>
-
-or add:
-
-    name domain\\customer47
-    remotename DialupNT
-
-when the Windows NT domain name is simply called 'domain'.
-
-
-TROUBLESHOOTING
-
-Assuming that everything else has been configured correctly for PPP and
-CHAP, the MS-CHAP-specific problems you're likely to encounter are mostly
-related to your Windows NT account and its settings.  A Microsoft server
-returns error codes in its CHAP response.  The following are extracted from
-Microsoft's "chapexts.txt" file referenced above:
-
- 646 ERROR_RESTRICTED_LOGON_HOURS
- 647 ERROR_ACCT_DISABLED
- 648 ERROR_PASSWD_EXPIRED
- 649 ERROR_NO_DIALIN_PERMISSION
- 691 ERROR_AUTHENTICATION_FAILURE
- 709 ERROR_CHANGING_PASSWORD
-
-You'll see these in your pppd log as a line similar to:
-
-   Remote message: E=649 R=0
-
-The "E=" is the error number from the table above, and the "R=" flag
-indicates whether the error is transient and the client should retry.  If
-you consistently get error 691, then either you're using the wrong account
-name/password, or the DES library or MD4 hashing (in md4.c) aren't working
-properly.  Verify your account name and password (use a Windows NT or
-Windows 95 system to dial-in if you have one available).  If that checks
-out, test the DES library with the "destest" program included with the DES
-library.  If DES checks out, the md4.c routines are probably failing
-(system byte ordering may be a problem) or my code is screwing up.  I've
-only got access to a Linux system, so you're on your own for anything else.
-
-Another thing that might cause problems is that some RAS servers won't
-respond at all to LCP config requests without seeing the word "CLIENT"
-from the other end.  If you see pppd sending out LCP config requests
-without getting any reply, try putting something in your chat script
-to send the word CLIENT after the modem has connected.
-
-If everything compiles cleanly, but fails at authentication time, then
-it might be a case of the MD4 or DES code screwing up.  The following
-small program can be used to test the MS-CHAP code to see if it
-produces a known response:
-
------------------
-#include <stdio.h>
-
-#include "pppd.h"
-#include "chap.h"
-#include "chap_ms.h"
-
-int main(argc, argv)
-    int     argc;
-    char    *argv[];
-{
-    u_char          challenge[8];
-    int             challengeInt[sizeof(challenge)];
-    chap_state      cstate;
-    int             i;
-
-    if (argc != 3) {
-        fprintf(stderr, "Usage: %s <16-hexchar challenge> <password>\n",
-        argv[0]); exit(1);
-    }
-
-    sscanf(argv[1], "%2x%2x%2x%2x%2x%2x%2x%2x",
-           challengeInt + 0, challengeInt + 1, challengeInt + 2,
-           challengeInt + 3, challengeInt + 4, challengeInt + 5,
-           challengeInt + 6, challengeInt + 7);
-
-    for (i = 0; i < sizeof(challenge); i++)
-        challenge[i] = (u_char)challengeInt[i];
-
-    ChapMS(&cstate, challenge, sizeof(challenge), argv[2], strlen(argv[2]));
-    printf("Response length is %d, response is:", cstate.resp_length);
-
-    for (i = 0; i < cstate.resp_length; i++) {
-        if (i % 8 == 0)
-            putchar('\n');
-        printf("%02X ", (unsigned int)cstate.response[i]);
-    }
-
-    putchar('\n');
-
-    exit(0);
-}
--------------
-
-This needs to link against chap_ms.o, md4.o, and the DES library.  When 
-you run it with the command line:
-
- $ testchap 00000000000000000000000000000000 hello
-
-it should output the following:
-
- Response length is 49, response is:
- 00 00 00 00 00 00 00 00
- 00 00 00 00 00 00 00 00
- 00 00 00 00 00 00 00 00
- F4 D9 9D AF 82 64 DC 3C
- 53 F9 BC 92 14 B5 5D 9E
- 78 C4 21 48 9D B7 A8 B4
- 01
-
-if not, then either the DES library is not working, the MD4 code isn't 
-working, or there are some problems with the port of the code in 
-chap_ms.c.
-
-
-STILL TO DO
-
-A site using only MS-CHAP to authenticate has no need to store cleartext
-passwords in the "chap-secrets" file.  A utility that spits out the ASCII
-hex MD4 hash of a given password would be nice, and would allow that hash
-to be used in chap-secrets in place of the password.  The code to do this
-could quite easily be lifted from chap_ms.c (you have to convert the
-password to Unicode before hashing it).  The chap_ms.c file would also have
-to be changed to recognize a password hash (16 binary bytes == 32 ASCII hex
-characters) and skip the hashing stage.
-
-A server implementation would allow MS-CHAP to be used with Windows NT and
-Windows 95 clients for enhanced security.  Some new command-line options
-would be required, as would code to generate the Challenge packet and
-verify the response.  Most of the helper functions are in place, so this
-shouldn't be too hard for someone to add.
diff --git a/mdk-stage1/ppp/README.cbcp b/mdk-stage1/ppp/README.cbcp
deleted file mode 100644
index 6f7b7685e..000000000
--- a/mdk-stage1/ppp/README.cbcp
+++ /dev/null
@@ -1,97 +0,0 @@
-	     Microsoft Call Back Configuration Protocol.
-			by Pedro Roque Marques
-			(updated by Paul Mackerras)
-
-The CBCP is a method by which the Microsoft Windows NT Server may
-implement additional security. It is possible to configure the server
-in such a manner so as to require that the client systems which
-connect with it are required that following a valid authentication to
-leave a method by which the number may be returned call.
-
-It is a requirement of servers so configured that the protocol be
-exchanged.
-
-So, this set of patches may be applied to the pppd process to enable
-the cbcp client *only* portion of the specification. It is primarily
-meant to permit connection with Windows NT Servers.
-
-The ietf-working specification may be obtained from ftp.microsoft.com
-in the developr/rfc directory.
-
-The ietf task group has decided to recommend that the LCP sequence be
-extended to permit the callback operation. For this reason, these
-patches are not 'part' of pppd but are an adjunct to the code.
-
-To enable CBCP support, all that is required is to change the
-appropriate Makefile in the pppd subdirectory to add "-DCBCP_SUPPORT"
-to the CFLAGS definition and add cbcp.o to the list of object files,
-and then recompile pppd.  The patch below does this for Makefile.bsd
-and Makefile.linux.
-
-
---------------------------------cut here-------------------------------
-diff -r -c ppp-2.3.orig/pppd/Makefile.bsd ppp-2.3/pppd/Makefile.bsd
-*** ppp-2.3.orig/pppd/Makefile.bsd	Tue Oct  8 13:33:33 1996
---- ppp-2.3/pppd/Makefile.bsd	Fri Apr 11 23:59:15 1997
-***************
-*** 4,14 ****
-  # -D_BITYPES is for FreeBSD, which doesn't define anything to
-  # tell us that u_int32_t gets defined if <sys/types.h> is included.
-  # Remove for older *BSD systems for which this isn't true.
-! CFLAGS+= -g -I.. -DHAVE_PATHS_H -D_BITYPES
-  
-  PROG=	pppd
-  SRCS=	main.c magic.c fsm.c lcp.c ipcp.c upap.c chap.c md5.c ccp.c \
-! 	demand.c auth.c options.c sys-bsd.c
-  MAN=	pppd.cat8
-  MAN8=	pppd.8
-  BINMODE=4555
---- 4,14 ----
-  # -D_BITYPES is for FreeBSD, which doesn't define anything to
-  # tell us that u_int32_t gets defined if <sys/types.h> is included.
-  # Remove for older *BSD systems for which this isn't true.
-! CFLAGS+= -I.. -DHAVE_PATHS_H -D_BITYPES -DCBCP_SUPPORT
-  
-  PROG=	pppd
-  SRCS=	main.c magic.c fsm.c lcp.c ipcp.c upap.c chap.c md5.c ccp.c \
-! 	demand.c auth.c options.c sys-bsd.c cbcp.c
-  MAN=	pppd.cat8
-  MAN8=	pppd.8
-  BINMODE=4555
-diff -r -c ppp-2.3.orig/pppd/Makefile.linux ppp-2.3/pppd/Makefile.linux
-*** ppp-2.3.orig/pppd/Makefile.linux	Tue Oct  8 15:42:41 1996
---- ppp-2.3/pppd/Makefile.linux	Sat Apr 12 00:02:28 1997
-***************
-*** 14,20 ****
-  	   ipxcp.h cbcp.h
-  MANPAGES = pppd.8
-  PPPDOBJS = main.o magic.o fsm.o lcp.o ipcp.o upap.o chap.o md5.o ccp.o \
-! 	   auth.o options.o demand.o sys-linux.o ipxcp.o
-  
-  all: pppd
-  
---- 14,20 ----
-  	   ipxcp.h cbcp.h
-  MANPAGES = pppd.8
-  PPPDOBJS = main.o magic.o fsm.o lcp.o ipcp.o upap.o chap.o md5.o ccp.o \
-! 	   auth.o options.o demand.o sys-linux.o ipxcp.o cbcp.o
-  
-  all: pppd
-  
-***************
-*** 36,42 ****
-  #INCLUDE_DIRS= -I/usr/include -I..
-  INCLUDE_DIRS=
-  
-! COMPILE_FLAGS= -D_linux_=1 -DHAVE_PATHS_H -DIPX_CHANGE
-  
-  CFLAGS= $(COPTS) $(COMPILE_FLAGS) $(INCLUDE_DIRS)
-  
---- 36,42 ----
-  #INCLUDE_DIRS= -I/usr/include -I..
-  INCLUDE_DIRS=
-  
-! COMPILE_FLAGS= -D_linux_=1 -DHAVE_PATHS_H -DIPX_CHANGE -DCBCP_SUPPORT
-  
-  CFLAGS= $(COPTS) $(COMPILE_FLAGS) $(INCLUDE_DIRS)
-  
diff --git a/mdk-stage1/ppp/README.linux b/mdk-stage1/ppp/README.linux
deleted file mode 100644
index 62ed9ca7f..000000000
--- a/mdk-stage1/ppp/README.linux
+++ /dev/null
@@ -1,297 +0,0 @@
-		PPP for Linux
-		-------------
-
-		Paul Mackerras
-		8 March 2001
-
-		for ppp-2.4.1
-
-1. Introduction
----------------
-
-The Linux PPP implementation includes both kernel and user-level
-parts.  This package contains the user-level part, which consists of
-the PPP daemon (pppd) and associated utilities.  In the past this
-package has contained updated kernel drivers.  This is no longer
-necessary, as the current 2.2 and 2.4 kernel sources contain
-up-to-date drivers.
-
-The Linux PPP implementation is capable of being used both for
-initiating PPP connections (as a `client') or for handling incoming
-PPP connections (as a `server').  Note that this is an operational
-distinction, based on how the connection is created, rather than a
-distinction that is made in the PPP protocols themselves.
-
-Mostly this package is used for PPP connections over modems connected
-via asynchronous serial ports, so this guide concentrates on this
-situation.
-
-The PPP protocol consists of two parts.  One is a scheme for framing
-and encoding packets, the other is a series of protocols called LCP,
-IPCP, PAP and CHAP, for negotiating link options and for
-authentication.  This package similarly consists of two parts: a
-kernel module which handles PPP's low-level framing protocol, and a
-user-level program called pppd which implements PPP's negotiation
-protocols.
-
-The kernel module assembles/disassembles PPP frames, handles error
-detection, and forwards packets between the serial port and either the
-kernel network code or the user-level program pppd.  IP packets go
-directly to the kernel network code.  So once pppd has negotiated the
-link, it in practice lies completely dormant until you want to take
-the link down, when it negotiates a graceful disconnect.
-
-
-2. Installation
----------------
-
-2.1 Kernel driver
-
-Assuming you are running a recent 2.2 or 2.4 (or later) series kernel,
-the kernel source code will contain an up-to-date kernel PPP driver.
-If the PPP driver was included in your kernel configuration when your
-kernel was built, then you only need to install the user-level
-programs.  Otherwise you will need to get the source tree for your
-kernel version, configure it with PPP included, and recompile.  Most
-Linux distribution vendors ship kernels with PPP included in the
-configuration.
-
-The PPP driver can be either compiled into the kernel or compiled as a
-kernel module.  If it is compiled into the kernel, the PPP driver is
-included in the kernel image which is loaded at boot time.  If it is
-compiled as a module, the PPP driver is present in one or more files
-under /lib/modules and is loaded into the kernel when needed.
-
-The 2.2 series kernels contain an older version of the kernel PPP
-driver, one which doesn't support multilink.  If you want multilink,
-you need to run the latest 2.4 series kernel.  The kernel PPP driver
-was completely rewritten for the 2.4 series kernels to support
-multilink and to allow it to operate over diverse kinds of
-communication medium (the 2.2 driver only operates over serial ports
-and devices which look like serial ports, such as pseudo-ttys).
-
-Under the 2.2 kernels, if PPP is compiled as a module, the PPP driver
-modules should be present in the /lib/modules/`uname -r`/net directory
-(where `uname -r` represents the kernel version number).  The PPP
-driver module itself is called ppp.o, and there will usually be
-compression modules there, ppp_deflate.o and bsd_comp.o, as well as
-slhc.o, which handles TCP/IP header compression.  If the PPP driver is
-compiled into the kernel, the compression code will still be compiled
-as modules, for kernels before 2.2.17pre12.  For 2.2.17pre12 and later,
-if the PPP driver is compiled in, the compression code will also.
-
-Under the 2.4 kernels, there are two PPP modules, ppp_generic.o and
-ppp_async.o, plus the compression modules (ppp_deflate.o, bsd_comp.o
-and slhc.o).  If the PPP generic driver is compiled into the kernel,
-the other four can then be present either as modules or compiled into
-the kernel.  There is a sixth module, ppp_synctty.o, which is used for
-synchronous tty devices such as high-speed WAN adaptors.
-
-
-2.2 User-level programs
-
-If you obtained this package in .rpm or .deb format, you simply follow
-the usual procedure for installing the package.
-
-If you are using the .tar.gz form of this package, then cd into the
-ppp-2.4.1b1 directory you obtained by unpacking the archive and issue
-the following commands:
-
-$ ./configure
-$ make
-# make install
-
-The `make install' has to be done as root.  This makes and installs
-four programs and their man pages: pppd, chat, pppstats and pppdump.
-If the /etc/ppp configuration directory doesn't exist, the `make
-install' step will create it and install some default configuration
-files.
-
-
-2.3 System setup for 2.4 kernels
-
-Under the 2.4 series kernels, pppd needs to be able to open /dev/ppp,
-character device (108,0).  If you are using devfs (the device
-filesystem), the /dev/ppp node will automagically appear when the
-ppp_generic module is loaded, or at startup if ppp_generic is compiled
-in.
-
-If you have ppp_generic as a module, and you are using devfsd (the
-devfs daemon), you will need to add a line like this to your
-/etc/devfsd.conf:
-
-LOOKUP		ppp		MODLOAD
-
-Otherwise you will need to create a /dev/ppp device node with the
-commands:
-
-# mknod /dev/ppp c 108 0
-# chmod 600 /dev/ppp
-
-If you use module autoloading and have PPP as a module, you will need
-to add the following to your /etc/modules.conf or /etc/conf.modules:
-
-alias /dev/ppp		ppp_generic
-alias char-major-108	ppp_generic
-alias tty-ldisc-3	ppp_async
-alias tty-ldisc-14	ppp_synctty
-alias ppp-compress-21	bsd_comp
-alias ppp-compress-24	ppp_deflate
-alias ppp-compress-26	ppp_deflate
-
-
-2.4 System setup under 2.2 series kernels
-
-Under the 2.2 series kernels, you should add the following to your
-/etc/modules.conf or /etc/conf.modules:
-
-alias tty-ldisc-3	ppp
-alias ppp-compress-21	bsd_comp
-alias ppp-compress-24	ppp_deflate
-alias ppp-compress-26	ppp_deflate
-
-
-3. Getting help with problems
------------------------------
-
-If you have problems with your PPP setup, or you just want to ask some
-questions, or better yet if you can help others with their PPP
-questions, then you should join the linux-ppp mailing list.  Send an
-email to majordomo@vger.kernel.org with a line in the body saying
-
-subscribe linux-ppp
-
-To leave the mailing list, send an email to majordomo@vger.kernel.org
-with a line in the body saying
-
-unsubscribe linux-ppp
-
-To send a message to the list, email it to linux-ppp@vger.kernel.org.
-You don't have to be subscribed to send messages to the list.
-
-You can also email me (paulus@linuxcare.com.au) but I am overloaded
-with email and I can't respond to most messages I get in a timely
-fashion.
-
-There are also several relevant news groups, such as comp.protocols.ppp,
-comp.os.linux.networking, or comp.os.linux.setup.
-
-
-4. Configuring your dial-out PPP connections
---------------------------------------------
-
-Some Linux distribution makers include tools in their distributions
-for setting up PPP connections.  For example, for Red Hat Linux and
-derivatives, you should probably use linuxconf or netcfg to set up
-your PPP connections.
-
-The two main windowing environments for Linux, KDE and Gnome, both
-come with GUI utilities for configuring and controlling PPP dial-out
-connections.  They are convenient and relatively easy to configure.
-
-A third alternative is to use a PPP front-end package such as wvdial
-or ezppp.  These also will handle most of the details of talking to
-the modem and setting up the PPP connection for you.
-
-Assuming that you don't want to use any of these tools, you want to
-set up the configuration manually yourself, then read on.  This
-document gives a brief description and example.  More details can be
-found by reading the pppd and chat man pages and the PPP-HOWTO.
-
-We assume that you have a modem that uses the Hayes-compatible AT
-command set connected to an async serial port (e.g. /dev/ttyS0) and
-that you are dialling out to an ISP.  
-
-The trickiest and most variable part of setting up a dial-out PPP
-connection is the part which involves getting the modem to dial and
-then invoking PPP service at the far end.  Generally, once both ends
-are talking PPP the rest is relatively straightforward.
-
-Now in fact pppd doesn't know anything about how to get modems to dial
-or what you have to say to the system at the far end to get it to talk
-PPP.  That's handled by an external program such as chat, specified
-with the connect option to pppd.  Chat takes a series of strings to
-expect from the modem interleaved with a series of strings to send to
-the modem.  See the chat man page for more information.  Here is a
-simple example for connecting to an ISP, assuming that the ISP's
-system starts talking PPP as soon as it answers the phone:
-
-pppd connect 'chat -v "" AT OK ATDT5551212 ~' \
-	/dev/ttyS0 57600 crtscts debug defaultroute
-
-Going through pppd's options in order:
-    connect 'chat ...'  This gives a command to run to contact the
-    PPP server.  Here the supplied 'chat' program is used to dial a
-    remote computer.  The whole command is enclosed in single quotes
-    because pppd expects a one-word argument for the 'connect' option.
-    The options to 'chat' itself are:
-
-         -v            verbose mode; log what we do to syslog
-         ""            don't wait for any prompt, but instead...
-	 AT	       send the string "AT"
-	 OK	       expect the response "OK", then
-         ATDT5551212   dial the modem, then
-         ~             wait for a ~ character, indicating the start
-		       of a PPP frame from the server
-
-    /dev/ttyS0	       specifies which serial port the modem is connected to
-    57600	       specifies the baud rate to use
-    crtscts	       use hardware flow control using the RTS & CTS signals
-    debug	       log the PPP negotiation with syslog
-    defaultroute       add default network route via the PPP link
-
-Pppd will write error messages and debugging logs to the syslogd
-daemon using the facility name "daemon".  These messages may already
-be logged to the console or to a file like /var/log/messages; consult
-your /etc/syslog.conf file to see.  If you want to make all pppd
-messages go to a file such as /var/log/ppp-debug, add the line
-
-daemon.*					/var/log/ppp-debug
-        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-           This is one or more tabs. Do not use spaces.
-
-to syslog.conf; make sure to put one or more TAB characters (not
-spaces!) between the two fields.  Then you need to create an empty
-/var/log/ppp-debug file with a command such as
-
-	touch /var/log/ppp-debug
-
-and then restart syslogd, usually by sending it a SIGHUP signal with a
-command like this:
-
-	killall -HUP syslogd
-
-
-4.1 Is the link up?
-
-The main way to tell if your PPP link is up and operational is the
-ifconfig ("interface configuration") command.  Type
-
-	/sbin/ifconfig
-
-at a shell prompt.  It should print a list of interfaces including one
-like this example:
-
-ppp0      Link encap Point-to-Point Protocol
-          inet addr 192.76.32.3  P-t-P 129.67.1.165  Mask 255.255.255.0
-          UP POINTOPOINT RUNNING  MTU 1500  Metric 1
-          RX packets 33 errors 0 dropped 0 overrun 0
-          TX packets 42 errors 0 dropped 0 overrun 0
-
-Assuming that ifconfig shows the ppp network interface, you can test
-the link using the ping command like this:
-
-	/sbin/ping -c 3 129.67.1.165
-
-where the address you give is the address shown as the P-t-P address
-in the ifconfig output.  If the link is operating correctly, you
-should see output like this:
-
-  PING 129.67.1.165 (129.67.1.165): 56 data bytes
-  64 bytes from 129.67.1.165: icmp_seq=0 ttl=255 time=268 ms
-  64 bytes from 129.67.1.165: icmp_seq=1 ttl=255 time=247 ms
-  64 bytes from 129.67.1.165: icmp_seq=2 ttl=255 time=266 ms
-  --- 129.67.1.165 ping statistics ---
-  3 packets transmitted, 3 packets received, 0% packet loss
-  round-trip min/avg/max = 247/260/268 ms
-
diff --git a/mdk-stage1/ppp/README.sol2 b/mdk-stage1/ppp/README.sol2
deleted file mode 100644
index 4c862208f..000000000
--- a/mdk-stage1/ppp/README.sol2
+++ /dev/null
@@ -1,220 +0,0 @@
-This file describes the installation process for ppp-2.3 on systems
-running Solaris 2.  The Solaris 2 and SVR4 ports share a lot of code
-but are not identical.  The STREAMS kernel modules and driver for
-Solaris 2 are in the svr4 directory (and use some code from the
-modules directory).
-
-NOTE: Although the kernel driver and modules have been designed to
-operate correctly on SMP systems, they have not been extensively
-tested on SMP machines.  Some users of SMP Solaris x86 systems have
-reported system problems apparently linked to the use of previous
-versions of this software.  I believe these problems have been fixed.
-
-
-Installation.
-*************
-
-1. Run the configure script and make the user-level programs and the
-kernel modules.
-
-	./configure
-	make
-
-If you wish to use gcc (or another compiler) instead of Sun's cc, edit
-the svr4/Makedefs file and uncomment the definition of CC.  You can
-also change the options passed to the C compiler by editing the COPTS
-definition.
-
-2. Install the programs and kernel modules: as root, do
-
-	make install
-
-This installs pppd, chat and pppstats in /usr/local/bin and the kernel
-modules in /kernel/drv and /kernel/strmod, and creates the /etc/ppp
-directory and populates it with default configuration files.  You can
-change the installation directories by editing svr4/Makedefs.
-
-If your system normally has only one network interface, the default
-Solaris 2 system startup scripts will disable IP forwarding in the IP
-kernel module.  This will prevent the remote machine from using the
-local machine as a gateway to access other hosts.  The solution is to
-create an /etc/ppp/ip-up script containing something like this:
-
-	#!/bin/sh
-	/usr/sbin/ndd -set /dev/ip ip_forwarding 1
-
-See the man page for ip(7p) for details.
-
-Dynamic STREAMS Re-Plumbing Support.
-************************************
-
-Solaris 8 includes dynamic re-plumbing support. With this, modules
-below ip can be inserted, or removed, without having the ip stream be
-unplumbed, and re-plumbed again. All states in ip for an interface
-will therefore now be preserved. Users can install (or upgrade)
-modules like firewall, bandwidth manager, cache manager, tunneling,
-etc., without shutting the machine down.
-
-To support this, ppp driver now uses /dev/udp instead of /dev/ip for
-the ip stream. The interface stream (where ip module pushed on top of
-ppp) is then I_PLINK'ed below the ip stream. /dev/udp is used because
-STREAMS will not let a driver be PLINK'ed under itself, and /dev/ip is
-typically the driver at the bottom of the tunneling interfaces
-stream.  The mux ids of the ip streams are then added using
-SIOCSxIFMUXID ioctl.
-
-Users will be able to see the modules on the interface stream by, for
-example:
-
-    pikapon% ifconfig ppp modlist
-    0 ip
-    1 ppp
-
-Or arbitrarily if bandwidth manager and firewall modules are installed:
-
-    pikapon% ifconfig hme0 modlist
-    0 arp
-    1 ip
-    2 ipqos
-    3 firewall
-    4 hme
-
-Snoop Support.
-**************
-
-This version includes support for /usr/sbin/snoop. Tests has been done
-on both Solaris 7 and 8. Only IPv4 and IPv6 packets will be sent up to
-stream(s) marked as promiscuous, e.g, snoop et al.
-
-Users will be able to see the packets on the ppp interface by, for example:
-
-    snoop -d ppp0
-
-See the man page for snoop(1M) for details.
-
-IPv6 Support.
-*************
-
-This is for Solaris 8 and later.
-
-This version has been tested under Solaris 8 running IPv6. As of now,
-interoperability testing has only been done between Solaris machines
-in terms of the IPV6 NCP. An additional command line option for the
-pppd daemon has been added: ipv6cp-use-persistent.
-
-By default, compilation for IPv6 support is not enabled.  Uncomment
-the necessary lines in pppd/Makefile.sol2 to enable it. Once done, the
-quickest way to get IPv6 running is to add the following somewhere in
-the command line option:
-
-	+ipv6 ipv6cp-use-persistent
-
-The persistent id for the link-local address was added to conform to
-RFC 2472; such that if there's an EUI-48 available, use that to make
-up the EUI-64.  As of now, the Solaris implementation extracts the
-EUI-48 id from the Ethernet's MAC address (the ethernet interface
-needs to be up).  Future works might support other ways of obtaining a
-unique yet persistent id, such as EEPROM serial numbers, etc.
-
-There need not be any up/down scripts for ipv6, e.g. /etc/ppp/ipv6-up
-or /etc/ppp/ipv6-down, to trigger IPv6 neighbor discovery for auto
-configuration and routing.  The in.ndpd daemon will perform all of the
-necessary jobs in the background. /etc/inet/ndpd.conf can be further
-customized to enable the machine as an IPv6 router. See the man page
-for in.ndpd(1M) and ndpd.conf(4) for details.
-
-Below is a sample output of "ifconfig -a" with persistent link-local
-address.  Note the UNNUMBERED flag is set because hme0 and ppp0 both
-have identical link-local IPv6 addresses:
-
-lo0: flags=1000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4> mtu 8232 index 1
-        inet 127.0.0.1 netmask ff000000 
-hme0: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 2
-        inet 129.146.86.248 netmask ffffff00 broadcast 129.146.86.255
-        ether 8:0:20:8d:38:c1 
-lo0: flags=2000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv6> mtu 8252 index 1
-        inet6 ::1/128 
-hme0: flags=2000841<UP,RUNNING,MULTICAST,IPv6> mtu 1500 index 2
-        ether 8:0:20:8d:38:c1 
-        inet6 fe80::a00:20ff:fe8d:38c1/10 
-hme0:1: flags=2080841<UP,RUNNING,MULTICAST,ADDRCONF,IPv6> mtu 1500 index 2
-        inet6 fec0::56:a00:20ff:fe8d:38c1/64 
-hme0:2: flags=2080841<UP,RUNNING,MULTICAST,ADDRCONF,IPv6> mtu 1500 index 2
-        inet6 2000::56:a00:20ff:fe8d:38c1/64 
-hme0:3: flags=2080841<UP,RUNNING,MULTICAST,ADDRCONF,IPv6> mtu 1500 index 2
-        inet6 2::56:a00:20ff:fe8d:38c1/64 
-ppp0: flags=10008d1<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST,IPv4> mtu 1500 index 12
-        inet 172.16.1.1 --> 172.16.1.2 netmask ffffff00 
-ppp0: flags=2202851<UP,POINTOPOINT,RUNNING,MULTICAST,UNNUMBERED,NONUD,IPv6> mtu 1500 index 12
-        inet6 fe80::a00:20ff:fe8d:38c1/10 --> fe80::a00:20ff:fe7a:24fb
-
-Note also that a plumbed ipv6 interface stream will exist throughout
-the entire PPP session in the case where the peer rejects IPV6CP,
-which further causes the interface state to stay down. Unplumbing will
-happen when the daemon exits. This is done by design and is not a bug.
-
-64-bit Support.
-***************
-
-This version has been tested under Solaris 7 (and Solaris 8 ) in both
-32- and 64-bits environments (Ultra class machines).  Installing the
-package by executing "make install" will result in additional files
-residing in /kernel/drv/sparcv9 and /kernel/strmod/sparcv9
-subdirectories.
-
-64-bit modules and driver have been compiled and tested using Sun's cc.
-
-Synchronous Serial Support.
-***************************
-
-This version has working but limited support for the on-board
-synchronous HDLC interfaces. It has been tested with the /dev/se_hdlc
-and /dev/zsh drivers.  Synchronous mode was tested with a Cisco
-router.
-
-There ppp daemon does not directly support controlling the serial
-interface.  It relies on the /usr/sbin/syncinit command to initialize
-HDLC mode and clocking.
-
-Some bugs remain: large sized frames are not sent/received properly,
-and may be related to the IP mtu.  This may be due to bugs in pppd
-itself, bugs in Solaris or the serial drivers.  The /dev/zsh driver
-seems more larger and can send/receive larger frames than the
-/dev/se_hdlc driver. There is a confirmed bug with NRZ/NRZI mode in
-the /dev/se_hdlc driver, and Solaris patch 104596-11 is needed to
-correct it. (However this patch seems to introduce other serial
-problems. If you don't apply the patch, the workaround is to change
-the nrzi mode to yes or no, whichever works)
-
-How to start pppd with synchronous support:
-
-#!/bin/sh
-
-local=1.1.1.1   # your ip address here
-baud=38400	# needed, but ignored by serial driver
-
-# Change to the correct serial driver/port
-#dev=/dev/zsh0
-dev=/dev/se_hdlc0
- 
-# Change the driver, nrzi mode, speed and clocking to match your setup
-# This configuration is for external clocking from the DCE
-connect="syncinit se_hdlc0 nrzi=no speed=64000 txc=rxc rxc=rxc"
- 
-/usr/sbin/pppd $dev sync $baud novj noauth $local: connect "$connect"
-
-
-Sample Cisco router config excerpt:
-
-!
-! Cisco router setup as DCE with RS-232 DCE cable
-! 
-!         
-interface Serial0
- ip address 1.1.1.2 255.255.255.0
- encapsulation ppp
- clockrate 64000
- no nrzi-encoding
- no shutdown
-!         
-
diff --git a/mdk-stage1/ppp/README.sunos4 b/mdk-stage1/ppp/README.sunos4
deleted file mode 100644
index b48aec377..000000000
--- a/mdk-stage1/ppp/README.sunos4
+++ /dev/null
@@ -1,62 +0,0 @@
-This file describes the installation process for ppp-2.3 on systems
-running SunOS 4.1.x (or the equivalent).
-
-The STREAMS modules in the sunos4 directory provide kernel support for
-PPP on SunOS 4.1.x systems.  They have been tested under SunOS 4.1.3
-on a SparcStation 1+.  They should work under earlier SunOS 4.1.x
-systems, but no guarantees are given.
-
-These modules are designed to be loaded into the running kernel using
-the `modload' command.
-
-
-Installation.
-*************
-
-1. Run the configure script and make the user-level programs and the
-kernel modules.
-
-	./configure
-	make
-
-If you wish to compile using gcc instead of cc, edit the
-sunos4/Makedefs file and uncomment the line saying "CC = gcc".  You
-can also change the C compiler options by editing the COPTS
-definition.
-
-2. Install the pppd, pppstats and chat programs and the loadable
-module object files (you need to be root to do this):
-
-	make install
-
-By default, the programs and the loadable module object files go into
-/usr/local/etc.  Doing `make install' also copies a script called
-ppp.INSTALL into /dev, and makes ppp.LOAD, ppp.UNLOAD, ppp.MKDEV and
-ppp.RMDEV links to it.  You can change the installation directories by
-editing sunos4/Makedefs.
-
-3. Load the ppp modules (you need to be root for this too):
-
-	/dev/ppp.LOAD
-
-You will want to do this in your /etc/rc.local file once you have
-everything installed.  I suggest you put something like the following
-in /etc/rc.local (or /etc/loadable, if you have one):
-
-	if [ -f /dev/ppp.AUTOLOAD ]; then
-		/dev/ppp.LOAD
-	fi
-
-and then create a /dev/ppp.AUTOLOAD file with the command
-
-	touch /dev/ppp.AUTOLOAD
-
-It is not advisable to unload the "if_ppp" module, because it creates
-network interface units, and SunOS does not provide any way to destroy
-network interfaces once created.  If you do unload it, the system will
-probably crash at some later stage.
-
-If you have previously had ppp-2.2 installed, you may have statements
-in your /etc/rc.local to load the ppp module.  You will need to remove
-those.  Having done this, you will need to reboot to remove the old
-ppp module and load the new modules.
diff --git a/mdk-stage1/ppp/SETUP b/mdk-stage1/ppp/SETUP
deleted file mode 100644
index fb28a2138..000000000
--- a/mdk-stage1/ppp/SETUP
+++ /dev/null
@@ -1,111 +0,0 @@
-		Configuring a PPP link.
-
-After you have compiled and installed this package, there are some
-configuration files which will generally need to be set up.  The
-pppd(8) man page is the best reference for the full details; this file
-outlines the configuration process for the most common case, where
-this package is being used to enable a machine to dial an ISP and
-connect to the internet.  The FAQ and README.linux files also provide
-useful information about setting up PPP.
-
-Dialling an ISP.
-****************
-
-Usually, an ISP will assign an IP address to your machine, and will
-refuse to authenticate itself to you.  Some ISPs require a username
-and password to be entered before PPP service commences, while others
-use PPP authentication (using either the PAP or CHAP protocols).
-
-The recommended way to set up to dial an ISP is for the system
-administrator to create a file under /etc/ppp/peers, named for the ISP
-that you will be dialling.  For example, suppose the file is called
-/etc/ppp/peers/isp.  This file would contain something like this:
-
-cua0		# modem is connected to /dev/cua0
-38400		# run the serial port at 38400 baud
-crtscts		# use hardware flow control
-noauth		# don't require the ISP to authenticate itself
-defaultroute	# use the ISP as our default route
-connect '/usr/sbin/chat -v -f /etc/ppp/chat-isp'
-
-If there are any other pppd options that should apply when calling
-this ISP, they can also be placed in this file.
-
-The /etc/ppp/chat-isp file named in the last line contains the script
-for chat(8) to use to dial the ISP and go through any username/
-password authentication required before PPP service starts.  Here is
-an example (for dialling an Annex terminal server):
-
-ABORT "NO CARRIER"
-ABORT "NO DIALTONE"
-ABORT "ERROR"
-ABORT "NO ANSWER"
-ABORT "BUSY"
-ABORT "Username/Password Incorrect"
-"" "at"
-OK "at&d2&c1"
-OK "atdt2479381"
-"name:" "^Uusername"
-"word:" "\qpassword"
-"annex" "ppp"
-"Switching to PPP-ppp-Switching to PPP"
-
-See the chat(8) man page for details of the script.  If you are not
-sure how the initial dialog with your ISP will go, you could use
-a terminal emulator such as kermit or minicom to go through the
-process manually.
-
-If your ISP requires PAP or CHAP authentication, you will have to
-create a line in /etc/ppp/pap-secrets or /etc/ppp/chap-secrets like
-this:
-
-myhostname	*	"password"
-
-(Replace myhostname with the hostname of your machine.)
-
-At this point, you can initiate the link with the command:
-
-/usr/sbin/pppd call isp
-
-(N.B.: pppd might be installed in a different directory on some
-systems).
-
-This will return to the shell prompt immediately, as pppd will detach
-itself from its controlling terminal.  (If you don't want it to do
-this, use the "nodetach" option.)
-
-Pppd will log messages describing the progress of the connection and
-any errors using the syslog facility (see the syslogd(8) and
-syslog.conf(5) man pages).  Pppd issues messages using syslog facility
-daemon (or local2 if it has been compiled with debugging enabled);
-chat uses facility local2.  It is often useful to see messages of
-priority notice or higher on the console.  To see these, find the line
-in /etc/syslog.conf which has /dev/console on the right-hand side, and
-add `daemon.notice' on the left.  This line should end up something
-like this:
-
-*.err;kern.debug;daemon,local2,auth.notice;mail.crit	/dev/console
-
-If you want to see more messages from pppd, request messages of
-priority info or higher for facility daemon, like this:
-
-*.err;kern.debug;daemon.info;local2,auth.notice;mail.crit  /dev/console
-
-It is also useful to add a line like this:
-
-daemon,local2.debug		/etc/ppp/ppp-log
-
-If you do this, you will need to create an empty /etc/ppp/ppp-log
-file.
-
-After modifying syslog.conf, you will then need to send a HUP signal
-to syslogd (or reboot).
-
-When you wish terminate the PPP link, you should send a TERM or INTR
-signal to pppd.  Pppd writes its process ID to a file called
-ppp<n>.pid in /var/run (or /etc/ppp on older systems such as SunOS or
-Ultrix).  Here <n> is the PPP interface unit number, which will be 0
-unless you have more than one PPP link running simultaneously.  Thus
-you can terminate the link with a command like
-
-	kill `cat /var/run/ppp0.pid`
diff --git a/mdk-stage1/ppp/chat/Makefile.linux b/mdk-stage1/ppp/chat/Makefile.linux
deleted file mode 100644
index a7045522c..000000000
--- a/mdk-stage1/ppp/chat/Makefile.linux
+++ /dev/null
@@ -1,27 +0,0 @@
-#	$Id: Makefile.linux 195720 2001-06-11 11:44:34Z gc $
-
-CDEF1=	-DTERMIOS			# Use the termios structure
-CDEF2=	-DSIGTYPE=void			# Standard definition
-CDEF3=	-UNO_SLEEP			# Use the usleep function
-CDEF4=	-DFNDELAY=O_NDELAY		# Old name value
-CDEFS=	$(CDEF1) $(CDEF2) $(CDEF3) $(CDEF4)
-
-CFLAGS=	$(RPM_OPT_FLAGS) $(CDEFS)
-
-INSTALL= install
-
-all:	chat
-
-chat:	chat.o
-	$(CC) -o chat chat.o
-
-chat.o:	chat.c
-	$(CC) -c $(CFLAGS) -o chat.o chat.c
-
-install: chat
-	mkdir -p $(BINDIR)
-	$(INSTALL) -s -c chat $(BINDIR)
-	$(INSTALL) -c -m 644 chat.8 $(MANDIR)/man8
-
-clean:
-	rm -f chat.o chat *~
diff --git a/mdk-stage1/ppp/chat/Makefile.linux.makeopt b/mdk-stage1/ppp/chat/Makefile.linux.makeopt
deleted file mode 100644
index 32f4e71ac..000000000
--- a/mdk-stage1/ppp/chat/Makefile.linux.makeopt
+++ /dev/null
@@ -1,27 +0,0 @@
-#	$Id: Makefile.linux.makeopt 195720 2001-06-11 11:44:34Z gc $
-
-CDEF1=	-DTERMIOS			# Use the termios structure
-CDEF2=	-DSIGTYPE=void			# Standard definition
-CDEF3=	-UNO_SLEEP			# Use the usleep function
-CDEF4=	-DFNDELAY=O_NDELAY		# Old name value
-CDEFS=	$(CDEF1) $(CDEF2) $(CDEF3) $(CDEF4)
-
-CFLAGS=	-O2 -g -pipe $(CDEFS)
-
-INSTALL= install
-
-all:	chat
-
-chat:	chat.o
-	$(CC) -o chat chat.o
-
-chat.o:	chat.c
-	$(CC) -c $(CFLAGS) -o chat.o chat.c
-
-install: chat
-	mkdir -p $(BINDIR)
-	$(INSTALL) -s -c chat $(BINDIR)
-	$(INSTALL) -c -m 644 chat.8 $(MANDIR)/man8
-
-clean:
-	rm -f chat.o chat *~
diff --git a/mdk-stage1/ppp/chat/Makefile.sol2 b/mdk-stage1/ppp/chat/Makefile.sol2
deleted file mode 100644
index f566cc68b..000000000
--- a/mdk-stage1/ppp/chat/Makefile.sol2
+++ /dev/null
@@ -1,19 +0,0 @@
-#
-# Makefile for chat on Solaris 2
-#
-
-include ../solaris/Makedefs
-
-CFLAGS = $(COPTS) -DNO_USLEEP -DSOL2
-
-all:	chat
-
-chat: chat.o
-	$(CC) -o chat chat.o
-
-install: chat
-	$(INSTALL) -f $(BINDIR) chat
-	$(INSTALL) -m 444 -f $(MANDIR)/man8 chat.8
-
-clean:
-	rm -f *~ *.o chat
diff --git a/mdk-stage1/ppp/chat/Makefile.sunos4 b/mdk-stage1/ppp/chat/Makefile.sunos4
deleted file mode 100644
index b3507360e..000000000
--- a/mdk-stage1/ppp/chat/Makefile.sunos4
+++ /dev/null
@@ -1,19 +0,0 @@
-#
-# Makefile for chat on suns
-#
-
-include ../sunos4/Makedefs
-
-CFLAGS = -DSUNOS $(COPTS)
-
-all:	chat
-
-chat: chat.o
-	$(CC) -o chat chat.o
-
-install: chat
-	$(INSTALL) -c chat $(BINDIR)/chat
-	$(INSTALL) -c -m 444 chat.8 $(MANDIR)/man8/chat.8
-
-clean:
-	rm -f *~ *.o chat
diff --git a/mdk-stage1/ppp/chat/chat.8 b/mdk-stage1/ppp/chat/chat.8
deleted file mode 100644
index dc3889cfc..000000000
--- a/mdk-stage1/ppp/chat/chat.8
+++ /dev/null
@@ -1,515 +0,0 @@
-.\" -*- nroff -*-
-.\" manual page [] for chat 1.8
-.\" $Id: chat.8 195720 2001-06-11 11:44:34Z gc $
-.\" SH section heading
-.\" SS subsection heading
-.\" LP paragraph
-.\" IP indented paragraph
-.\" TP hanging label
-.TH CHAT 8 "22 May 1999" "Chat Version 1.22"
-.SH NAME
-chat \- Automated conversational script with a modem
-.SH SYNOPSIS
-.B chat
-[
-.I options
-]
-.I script
-.SH DESCRIPTION
-.LP
-The \fIchat\fR program defines a conversational exchange between the
-computer and the modem. Its primary purpose is to establish the
-connection between the Point-to-Point Protocol Daemon (\fIpppd\fR) and
-the remote's \fIpppd\fR process.
-.SH OPTIONS
-.TP
-.B -f \fI<chat file>
-Read the chat script from the chat \fIfile\fR. The use of this option
-is mutually exclusive with the chat script parameters. The user must
-have read access to the file. Multiple lines are permitted in the
-file. Space or horizontal tab characters should be used to separate
-the strings.
-.TP
-.B -t \fI<timeout>
-Set the timeout for the expected string to be received. If the string
-is not received within the time limit then the reply string is not
-sent. An alternate reply may be sent or the script will fail if there
-is no alternate reply string. A failed script will cause the
-\fIchat\fR program to terminate with a non-zero error code.
-.TP
-.B -r \fI<report file>
-Set the file for output of the report strings. If you use the keyword
-\fIREPORT\fR, the resulting strings are written to this file. If this
-option is not used and you still use \fIREPORT\fR keywords, the
-\fIstderr\fR file is used for the report strings.
-.TP
-.B -e
-Start with the echo option turned on. Echoing may also be turned on
-or off at specific points in the chat script by using the \fIECHO\fR
-keyword. When echoing is enabled, all output from the modem is echoed
-to \fIstderr\fR.
-.TP
-.B -E
-Enables environment variable substituion within chat scripts using the
-standard \fI$xxx\fR syntax.
-.TP
-.B -v
-Request that the \fIchat\fR script be executed in a verbose mode. The
-\fIchat\fR program will then log the execution state of the chat
-script as well as all text received from the modem and the output
-strings sent to the modem.  The default is to log through the SYSLOG;
-the logging method may be altered with the -S and -s flags.
-.TP
-.B -V
-Request that the \fIchat\fR script be executed in a stderr verbose
-mode. The \fIchat\fR program will then log all text received from the
-modem and the output strings sent to the modem to the stderr device. This
-device is usually the local console at the station running the chat or
-pppd program.
-.TP
-.B -s
-Use stderr.  All log messages from '-v' and all error messages will be
-sent to stderr.
-.TP
-.B -S
-Do not use the SYSLOG.  By default, error messages are sent to the
-SYSLOG.  The use of -S will prevent both log messages from '-v' and
-error messages from being sent to the SYSLOG.
-.TP
-.B -T \fI<phone number>
-Pass in an arbitary string, usually a phone number, that will be
-substituted for the \\T substitution metacharacter in a send string.
-.TP
-.B -U \fI<phone number 2>
-Pass in a second string, usually a phone number, that will be
-substituted for the \\U substitution metacharacter in a send string.
-This is useful when dialing an ISDN terminal adapter that requires two 
-numbers.
-.TP
-.B script
-If the script is not specified in a file with the \fI-f\fR option then
-the script is included as parameters to the \fIchat\fR program.
-.SH CHAT SCRIPT
-.LP
-The \fIchat\fR script defines the communications.
-.LP
-A script consists of one or more "expect-send" pairs of strings,
-separated by spaces, with an optional "subexpect-subsend" string pair,
-separated by a dash as in the following example:
-.IP
-ogin:-BREAK-ogin: ppp ssword: hello2u2
-.LP
-This line indicates that the \fIchat\fR program should expect the string
-"ogin:". If it fails to receive a login prompt within the time interval
-allotted, it is to send a break sequence to the remote and then expect the
-string "ogin:". If the first "ogin:" is received then the break sequence is
-not generated.
-.LP
-Once it received the login prompt the \fIchat\fR program will send the
-string ppp and then expect the prompt "ssword:". When it receives the
-prompt for the password, it will send the password hello2u2.
-.LP
-A carriage return is normally sent following the reply string. It is not
-expected in the "expect" string unless it is specifically requested by using
-the \\r character sequence.
-.LP
-The expect sequence should contain only what is needed to identify the
-string. Since it is normally stored on a disk file, it should not contain
-variable information. It is generally not acceptable to look for time
-strings, network identification strings, or other variable pieces of data as
-an expect string.
-.LP
-To help correct for characters which may be corrupted during the initial
-sequence, look for the string "ogin:" rather than "login:". It is possible
-that the leading "l" character may be received in error and you may never
-find the string even though it was sent by the system. For this reason,
-scripts look for "ogin:" rather than "login:" and "ssword:" rather than
-"password:".
-.LP
-A very simple script might look like this:
-.IP
-ogin: ppp ssword: hello2u2
-.LP
-In other words, expect ....ogin:, send ppp, expect ...ssword:, send hello2u2.
-.LP
-In actual practice, simple scripts are rare. At the vary least, you
-should include sub-expect sequences should the original string not be
-received. For example, consider the following script:
-.IP
-ogin:--ogin: ppp ssword: hello2u2
-.LP
-This would be a better script than the simple one used earlier. This would look
-for the same login: prompt, however, if one was not received, a single
-return sequence is sent and then it will look for login: again. Should line
-noise obscure the first login prompt then sending the empty line will
-usually generate a login prompt again.
-.SH COMMENTS
-Comments can be embedded in the chat script. A comment is a line which
-starts with the \fB#\fR (hash) character in column 1. Such comment
-lines are just ignored by the chat program. If a '#' character is to
-be expected as the first character of the expect sequence, you should
-quote the expect string.
-If you want to wait for a prompt that starts with a # (hash)
-character, you would have to write something like this:
-.IP
-# Now wait for the prompt and send logout string
-.br
-\'# ' logout
-.LP
-
-.SH SENDING DATA FROM A FILE
-If the string to send starts with an at sign (@), the rest of the
-string is taken to be the name of a file to read to get the string to
-send.  If the last character of the data read is a newline, it is
-removed.  The file can be a named pipe (or fifo) instead of a regular
-file.  This provides a way for \fBchat\fR to communicate with another
-program, for example, a program to prompt the user and receive a
-password typed in.
-.LP
-
-.SH ABORT STRINGS
-Many modems will report the status of the call as a string. These
-strings may be \fBCONNECTED\fR or \fBNO CARRIER\fR or \fBBUSY\fR. It
-is often desirable to terminate the script should the modem fail to
-connect to the remote. The difficulty is that a script would not know
-exactly which modem string it may receive. On one attempt, it may
-receive \fBBUSY\fR while the next time it may receive \fBNO CARRIER\fR.
-.LP
-These "abort" strings may be specified in the script using the \fIABORT\fR
-sequence. It is written in the script as in the following example:
-.IP
-ABORT BUSY ABORT 'NO CARRIER' '' ATZ OK ATDT5551212 CONNECT
-.LP
-This sequence will expect nothing; and then send the string ATZ. The
-expected response to this is the string \fIOK\fR. When it receives \fIOK\fR,
-the string ATDT5551212 to dial the telephone. The expected string is
-\fICONNECT\fR. If the string \fICONNECT\fR is received the remainder of the
-script is executed. However, should the modem find a busy telephone, it will
-send the string \fIBUSY\fR. This will cause the string to match the abort
-character sequence. The script will then fail because it found a match to
-the abort string. If it received the string \fINO CARRIER\fR, it will abort
-for the same reason. Either string may be received. Either string will
-terminate the \fIchat\fR script.
-.SH CLR_ABORT STRINGS
-This sequence allows for clearing previously set \fBABORT\fR strings.
-\fBABORT\fR strings are kept in an array of a pre-determined size (at
-compilation time); \fBCLR_ABORT\fR will reclaim the space for cleared
-entries so that new strings can use that space.
-.SH SAY STRINGS
-The \fBSAY\fR directive allows the script to send strings to the user
-at the terminal via standard error.  If \fBchat\fR is being run by
-pppd, and pppd is running as a daemon (detached from its controlling
-terminal), standard error will normally be redirected to the file
-/etc/ppp/connect-errors.
-.LP
-\fBSAY\fR strings must be enclosed in single or double quotes. If
-carriage return and line feed are needed in the string to be output,
-you must explicitely add them to your string.
-.LP
-The SAY strings could be used to give progress messages in sections of
-the script where you want to have 'ECHO OFF' but still let the user
-know what is happening.  An example is:
-.IP
-ABORT BUSY 
-.br
-ECHO OFF 
-.br
-SAY "Dialling your ISP...\\n" 
-.br
-\'' ATDT5551212 
-.br
-TIMEOUT 120
-.br
-SAY "Waiting up to 2 minutes for connection ... "
-.br
-CONNECT '' 
-.br
-SAY "Connected, now logging in ...\n"
-.br
-ogin: account
-.br
-ssword: pass
-.br
-$ \c
-SAY "Logged in OK ...\n"
-\fIetc ...\fR
-.LP
-This sequence will only present the SAY strings to the user and all
-the details of the script will remain hidden. For example, if the
-above script works, the user will see:
-.IP
-Dialling your ISP...
-.br
-Waiting up to 2 minutes for connection ... Connected, now logging in ...
-.br
-Logged in OK ...
-.LP
-
-.SH REPORT STRINGS
-A \fBreport\fR string is similar to the ABORT string. The difference
-is that the strings, and all characters to the next control character
-such as a carriage return, are written to the report file.
-.LP
-The report strings may be used to isolate the transmission rate of the
-modem's connect string and return the value to the chat user. The
-analysis of the report string logic occurs in conjunction with the
-other string processing such as looking for the expect string. The use
-of the same string for a report and abort sequence is probably not
-very useful, however, it is possible.
-.LP
-The report strings to no change the completion code of the program.
-.LP
-These "report" strings may be specified in the script using the \fIREPORT\fR
-sequence. It is written in the script as in the following example:
-.IP
-REPORT CONNECT ABORT BUSY '' ATDT5551212 CONNECT '' ogin: account
-.LP
-This sequence will expect nothing; and then send the string
-ATDT5551212 to dial the telephone. The expected string is
-\fICONNECT\fR. If the string \fICONNECT\fR is received the remainder
-of the script is executed. In addition the program will write to the
-expect-file the string "CONNECT" plus any characters which follow it
-such as the connection rate.
-.SH CLR_REPORT STRINGS
-This sequence allows for clearing previously set \fBREPORT\fR strings.
-\fBREPORT\fR strings are kept in an array of a pre-determined size (at
-compilation time); \fBCLR_REPORT\fR will reclaim the space for cleared
-entries so that new strings can use that space.
-.SH ECHO
-The echo options controls whether the output from the modem is echoed
-to \fIstderr\fR. This option may be set with the \fI-e\fR option, but
-it can also be controlled by the \fIECHO\fR keyword. The "expect-send"
-pair \fIECHO\fR \fION\fR enables echoing, and \fIECHO\fR \fIOFF\fR
-disables it. With this keyword you can select which parts of the
-conversation should be visible. For instance, with the following
-script:
-.IP
-ABORT   'BUSY'
-.br
-ABORT   'NO CARRIER'
-.br
-''      ATZ
-.br
-OK\\r\\n  ATD1234567
-.br
-\\r\\n    \\c
-.br
-ECHO    ON
-.br
-CONNECT \\c
-.br
-ogin:   account
-.LP
-all output resulting from modem configuration and dialing is not visible,
-but starting with the \fICONNECT\fR (or \fIBUSY\fR) message, everything
-will be echoed.
-.SH HANGUP
-The HANGUP options control whether a modem hangup should be considered
-as an error or not.  This option is useful in scripts for dialling
-systems which will hang up and call your system back.  The HANGUP
-options can be \fBON\fR or \fBOFF\fR.
-.br
-When HANGUP is set OFF and the modem hangs up (e.g., after the first
-stage of logging in to a callback system), \fBchat\fR will continue
-running the script (e.g., waiting for the incoming call and second
-stage login prompt). As soon as the incoming call is connected, you
-should use the \fBHANGUP ON\fR directive to reinstall normal hang up
-signal behavior.  Here is an (simple) example script:
-.IP
-ABORT   'BUSY'
-.br
-''      ATZ
-.br
-OK\\r\\n  ATD1234567
-.br
-\\r\\n    \\c
-.br
-CONNECT \\c
-.br
-\'Callback login:' call_back_ID
-.br
-HANGUP OFF
-.br
-ABORT "Bad Login"
-.br
-\'Callback Password:' Call_back_password
-.br
-TIMEOUT 120
-.br
-CONNECT \\c
-.br
-HANGUP ON
-.br
-ABORT "NO CARRIER"
-.br
-ogin:--BREAK--ogin: real_account
-.br
-\fIetc ...\fR
-.LP
-.SH TIMEOUT
-The initial timeout value is 45 seconds. This may be changed using the \fB-t\fR
-parameter.
-.LP
-To change the timeout value for the next expect string, the following
-example may be used:
-.IP
-ATZ OK ATDT5551212 CONNECT TIMEOUT 10 ogin:--ogin: TIMEOUT 5 assword: hello2u2
-.LP
-This will change the timeout to 10 seconds when it expects the login:
-prompt. The timeout is then changed to 5 seconds when it looks for the
-password prompt.
-.LP
-The timeout, once changed, remains in effect until it is changed again.
-.SH SENDING EOT
-The special reply string of \fIEOT\fR indicates that the chat program
-should send an EOT character to the remote. This is normally the
-End-of-file character sequence. A return character is not sent
-following the EOT.
-.PR
-The EOT sequence may be embedded into the send string using the
-sequence \fI^D\fR.
-.SH GENERATING BREAK
-The special reply string of \fIBREAK\fR will cause a break condition
-to be sent. The break is a special signal on the transmitter. The
-normal processing on the receiver is to change the transmission rate.
-It may be used to cycle through the available transmission rates on
-the remote until you are able to receive a valid login prompt.
-.PR
-The break sequence may be embedded into the send string using the
-\fI\\K\fR sequence.
-.SH ESCAPE SEQUENCES
-The expect and reply strings may contain escape sequences. All of the
-sequences are legal in the reply string. Many are legal in the expect.
-Those which are not valid in the expect sequence are so indicated.
-.TP
-.B ''
-Expects or sends a null string. If you send a null string then it will still
-send the return character. This sequence may either be a pair of apostrophe
-or quote characters.
-.TP
-.B \\\\b
-represents a backspace character.
-.TP
-.B \\\\c
-Suppresses the newline at the end of the reply string. This is the only
-method to send a string without a trailing return character. It must
-be at the end of the send string. For example,
-the sequence hello\\c will simply send the characters h, e, l, l, o.
-.I (not valid in expect.)
-.TP
-.B \\\\d
-Delay for one second. The program uses sleep(1) which will delay to a
-maximum of one second.
-.I (not valid in expect.)
-.TP
-.B \\\\K
-Insert a BREAK
-.I (not valid in expect.)
-.TP
-.B \\\\n
-Send a newline or linefeed character.
-.TP
-.B \\\\N
-Send a null character. The same sequence may be represented by \\0.
-.I (not valid in expect.)
-.TP
-.B \\\\p
-Pause for a fraction of a second. The delay is 1/10th of a second.
-.I (not valid in expect.)
-.TP
-.B \\\\q
-Suppress writing the string to the SYSLOG file. The string ?????? is
-written to the log in its place.
-.I (not valid in expect.)
-.TP
-.B \\\\r
-Send or expect a carriage return.
-.TP
-.B \\\\s
-Represents a space character in the string. This may be used when it
-is not desirable to quote the strings which contains spaces. The
-sequence 'HI TIM' and HI\\sTIM are the same.
-.TP
-.B \\\\t
-Send or expect a tab character.
-.TP
-.B \\\\T
-Send the phone number string as specified with the \fI-T\fR option
-.I (not valid in expect.)
-.TP
-.B \\\\U
-Send the phone number 2 string as specified with the \fI-U\fR option
-.I (not valid in expect.)
-.TP
-.B \\\\\\\\
-Send or expect a backslash character.
-.TP
-.B \\\\ddd
-Collapse the octal digits (ddd) into a single ASCII character and send that
-character.
-.I (some characters are not valid in expect.)
-.TP
-.B \^^C
-Substitute the sequence with the control character represented by C.
-For example, the character DC1 (17) is shown as \^^Q.
-.I (some characters are not valid in expect.)
-.SH ENVIRONMENT VARIABLES
-Environment variables are available within chat scripts, if  the \fI-E\fR
-option was specified in the command line. The metacharacter \fI$\fR is used
-to introduce the name of the environment variable to substitute. If the
-substition fails, because the requested environment variable is not set,
-\fInothing\fR is replaced for the variable.
-.SH TERMINATION CODES
-The \fIchat\fR program will terminate with the following completion
-codes.
-.TP
-.B 0
-The normal termination of the program. This indicates that the script
-was executed without error to the normal conclusion.
-.TP
-.B 1
-One or more of the parameters are invalid or an expect string was too
-large for the internal buffers. This indicates that the program as not
-properly executed.
-.TP
-.B 2
-An error occurred during the execution of the program. This may be due
-to a read or write operation failing for some reason or chat receiving
-a signal such as SIGINT.
-.TP
-.B 3
-A timeout event occurred when there was an \fIexpect\fR string without
-having a "-subsend" string. This may mean that you did not program the
-script correctly for the condition or that some unexpected event has
-occurred and the expected string could not be found.
-.TP
-.B 4
-The first string marked as an \fIABORT\fR condition occurred.
-.TP
-.B 5
-The second string marked as an \fIABORT\fR condition occurred.
-.TP
-.B 6
-The third string marked as an \fIABORT\fR condition occurred.
-.TP
-.B 7
-The fourth string marked as an \fIABORT\fR condition occurred.
-.TP
-.B ...
-The other termination codes are also strings marked as an \fIABORT\fR
-condition.
-.LP
-Using the termination code, it is possible to determine which event
-terminated the script. It is possible to decide if the string "BUSY"
-was received from the modem as opposed to "NO DIAL TONE". While the
-first event may be retried, the second will probably have little
-chance of succeeding during a retry.
-.SH SEE ALSO
-Additional information about \fIchat\fR scripts may be found with UUCP
-documentation. The \fIchat\fR script was taken from the ideas proposed
-by the scripts used by the \fIuucico\fR program.
-.LP
-uucico(1), uucp(1)
-.SH COPYRIGHT
-The \fIchat\fR program is in public domain. This is not the GNU public
-license. If it breaks then you get to keep both pieces.
diff --git a/mdk-stage1/ppp/chat/chat.c b/mdk-stage1/ppp/chat/chat.c
deleted file mode 100644
index 6c4a8487b..000000000
--- a/mdk-stage1/ppp/chat/chat.c
+++ /dev/null
@@ -1,1756 +0,0 @@
-/*
- *	Chat -- a program for automatic session establishment (i.e. dial
- *		the phone and log in).
- *
- * Standard termination codes:
- *  0 - successful completion of the script
- *  1 - invalid argument, expect string too large, etc.
- *  2 - error on an I/O operation or fatal error condition.
- *  3 - timeout waiting for a simple string.
- *  4 - the first string declared as "ABORT"
- *  5 - the second string declared as "ABORT"
- *  6 - ... and so on for successive ABORT strings.
- *
- *	This software is in the public domain.
- *
- * -----------------
- *	22-May-99 added environment substitutuion, enabled with -E switch.
- *	Andreas Arens <andras@cityweb.de>.
- *
- *	12-May-99 added a feature to read data to be sent from a file,
- *	if the send string starts with @.  Idea from gpk <gpk@onramp.net>.
- *
- *	added -T and -U option and \T and \U substitution to pass a phone
- *	number into chat script. Two are needed for some ISDN TA applications.
- *	Keith Dart <kdart@cisco.com>
- *	
- *
- *	Added SAY keyword to send output to stderr.
- *      This allows to turn ECHO OFF and to output specific, user selected,
- *      text to give progress messages. This best works when stderr
- *      exists (i.e.: pppd in nodetach mode).
- *
- * 	Added HANGUP directives to allow for us to be called
- *      back. When HANGUP is set to NO, chat will not hangup at HUP signal.
- *      We rely on timeouts in that case.
- *
- *      Added CLR_ABORT to clear previously set ABORT string. This has been
- *      dictated by the HANGUP above as "NO CARRIER" (for example) must be
- *      an ABORT condition until we know the other host is going to close
- *      the connection for call back. As soon as we have completed the
- *      first stage of the call back sequence, "NO CARRIER" is a valid, non
- *      fatal string. As soon as we got called back (probably get "CONNECT"),
- *      we should re-arm the ABORT "NO CARRIER". Hence the CLR_ABORT command.
- *      Note that CLR_ABORT packs the abort_strings[] array so that we do not
- *      have unused entries not being reclaimed.
- *
- *      In the same vein as above, added CLR_REPORT keyword.
- *
- *      Allow for comments. Line starting with '#' are comments and are
- *      ignored. If a '#' is to be expected as the first character, the 
- *      expect string must be quoted.
- *
- *
- *		Francis Demierre <Francis@SwissMail.Com>
- * 		Thu May 15 17:15:40 MET DST 1997
- *
- *
- *      Added -r "report file" switch & REPORT keyword.
- *              Robert Geer <bgeer@xmission.com>
- *
- *      Added -s "use stderr" and -S "don't use syslog" switches.
- *              June 18, 1997
- *              Karl O. Pinc <kop@meme.com>
- *
- *
- *	Added -e "echo" switch & ECHO keyword
- *		Dick Streefland <dicks@tasking.nl>
- *
- *
- *	Considerable updates and modifications by
- *		Al Longyear <longyear@pobox.com>
- *		Paul Mackerras <paulus@cs.anu.edu.au>
- *
- *
- *	The original author is:
- *
- *		Karl Fox <karl@MorningStar.Com>
- *		Morning Star Technologies, Inc.
- *		1760 Zollinger Road
- *		Columbus, OH  43221
- *		(614)451-1883
- *
- */
-
-#ifndef __STDC__
-#define const
-#endif
-
-#ifndef lint
-static const char rcsid[] = "$Id: chat.c 195720 2001-06-11 11:44:34Z gc $";
-#endif
-
-#include <stdio.h>
-#include <ctype.h>
-#include <time.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <errno.h>
-#include <string.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <syslog.h>
-
-#ifndef TERMIO
-#undef	TERMIOS
-#define TERMIOS
-#endif
-
-#ifdef TERMIO
-#include <termio.h>
-#endif
-#ifdef TERMIOS
-#include <termios.h>
-#endif
-
-#define	STR_LEN	1024
-
-#ifndef SIGTYPE
-#define SIGTYPE void
-#endif
-
-#undef __P
-#undef __V
-
-#ifdef __STDC__
-#include <stdarg.h>
-#define __V(x)	x
-#define __P(x)	x
-#else
-#include <varargs.h>
-#define __V(x)	(va_alist) va_dcl
-#define __P(x)	()
-#define const
-#endif
-
-#ifndef O_NONBLOCK
-#define O_NONBLOCK	O_NDELAY
-#endif
-
-#ifdef SUNOS
-extern int sys_nerr;
-extern char *sys_errlist[];
-#define memmove(to, from, n)	bcopy(from, to, n)
-#define strerror(n)		((unsigned)(n) < sys_nerr? sys_errlist[(n)] :\
-				 "unknown error")
-#endif
-
-/*************** Micro getopt() *********************************************/
-#define	OPTION(c,v)	(_O&2&&**v?*(*v)++:!c||_O&4?0:(!(_O&1)&& \
-				(--c,++v),_O=4,c&&**v=='-'&&v[0][1]?*++*v=='-'\
-				&&!v[0][1]?(--c,++v,0):(_O=2,*(*v)++):0))
-#define	OPTARG(c,v)	(_O&2?**v||(++v,--c)?(_O=1,--c,*v++): \
-				(_O=4,(char*)0):(char*)0)
-#define	OPTONLYARG(c,v)	(_O&2&&**v?(_O=1,--c,*v++):(char*)0)
-#define	ARG(c,v)	(c?(--c,*v++):(char*)0)
-
-static int _O = 0;		/* Internal state */
-/*************** Micro getopt() *********************************************/
-
-char *program_name;
-
-#define	MAX_ABORTS		50
-#define	MAX_REPORTS		50
-#define	DEFAULT_CHAT_TIMEOUT	45
-
-int echo          = 0;
-int verbose       = 0;
-int to_log        = 1;
-int to_stderr     = 0;
-int Verbose       = 0;
-int quiet         = 0;
-int report        = 0;
-int use_env       = 0;
-int exit_code     = 0;
-FILE* report_fp   = (FILE *) 0;
-char *report_file = (char *) 0;
-char *chat_file   = (char *) 0;
-char *phone_num   = (char *) 0;
-char *phone_num2  = (char *) 0;
-int timeout       = DEFAULT_CHAT_TIMEOUT;
-
-int have_tty_parameters = 0;
-
-#ifdef TERMIO
-#define term_parms struct termio
-#define get_term_param(param) ioctl(0, TCGETA, param)
-#define set_term_param(param) ioctl(0, TCSETA, param)
-struct termio saved_tty_parameters;
-#endif
-
-#ifdef TERMIOS
-#define term_parms struct termios
-#define get_term_param(param) tcgetattr(0, param)
-#define set_term_param(param) tcsetattr(0, TCSANOW, param)
-struct termios saved_tty_parameters;
-#endif
-
-char *abort_string[MAX_ABORTS], *fail_reason = (char *)0,
-	fail_buffer[50];
-int n_aborts = 0, abort_next = 0, timeout_next = 0, echo_next = 0;
-int clear_abort_next = 0;
-
-char *report_string[MAX_REPORTS] ;
-char  report_buffer[50] ;
-int n_reports = 0, report_next = 0, report_gathering = 0 ; 
-int clear_report_next = 0;
-
-int say_next = 0, hup_next = 0;
-
-void *dup_mem __P((void *b, size_t c));
-void *copy_of __P((char *s));
-void usage __P((void));
-void logf __P((const char *fmt, ...));
-void fatal __P((int code, const char *fmt, ...));
-SIGTYPE sigalrm __P((int signo));
-SIGTYPE sigint __P((int signo));
-SIGTYPE sigterm __P((int signo));
-SIGTYPE sighup __P((int signo));
-void unalarm __P((void));
-void init __P((void));
-void set_tty_parameters __P((void));
-void echo_stderr __P((int));
-void break_sequence __P((void));
-void terminate __P((int status));
-void do_file __P((char *chat_file));
-int  get_string __P((register char *string));
-int  put_string __P((register char *s));
-int  write_char __P((int c));
-int  put_char __P((int c));
-int  get_char __P((void));
-void chat_send __P((register char *s));
-char *character __P((int c));
-void chat_expect __P((register char *s));
-char *clean __P((register char *s, int sending));
-void break_sequence __P((void));
-void terminate __P((int status));
-void pack_array __P((char **array, int end));
-char *expect_strtok __P((char *, char *));
-int vfmtmsg __P((char *, int, const char *, va_list));	/* vsprintf++ */
-
-int main __P((int, char *[]));
-
-void *dup_mem(b, c)
-void *b;
-size_t c;
-{
-    void *ans = malloc (c);
-    if (!ans)
-	fatal(2, "memory error!");
-
-    memcpy (ans, b, c);
-    return ans;
-}
-
-void *copy_of (s)
-char *s;
-{
-    return dup_mem (s, strlen (s) + 1);
-}
-
-/*
- * chat [ -v ] [ -E ] [ -T number ] [ -U number ] [ -t timeout ] [ -f chat-file ] \
- * [ -r report-file ] \
- *		[...[[expect[-say[-expect...]] say expect[-say[-expect]] ...]]]
- *
- *	Perform a UUCP-dialer-like chat script on stdin and stdout.
- */
-int
-main(argc, argv)
-     int argc;
-     char **argv;
-{
-    int option;
-    char *arg;
-
-    program_name = *argv;
-    tzset();
-
-    while ((option = OPTION(argc, argv)) != 0) {
-	switch (option) {
-	case 'e':
-	    ++echo;
-	    break;
-
-	case 'E':
-	    ++use_env;
-	    break;
-
-	case 'v':
-	    ++verbose;
-	    break;
-
-	case 'V':
-	    ++Verbose;
-	    break;
-
-	case 's':
-	    ++to_stderr;
-	    break;
-
-	case 'S':
-	    to_log = 0;
-	    break;
-
-	case 'f':
-	    if ((arg = OPTARG(argc, argv)) != NULL)
-		    chat_file = copy_of(arg);
-	    else
-		usage();
-	    break;
-
-	case 't':
-	    if ((arg = OPTARG(argc, argv)) != NULL)
-		timeout = atoi(arg);
-	    else
-		usage();
-	    break;
-
-	case 'r':
-	    arg = OPTARG (argc, argv);
-	    if (arg) {
-		if (report_fp != NULL)
-		    fclose (report_fp);
-		report_file = copy_of (arg);
-		report_fp   = fopen (report_file, "a");
-		if (report_fp != NULL) {
-		    if (verbose)
-			fprintf (report_fp, "Opening \"%s\"...\n",
-				 report_file);
-		    report = 1;
-		}
-	    }
-	    break;
-
-	case 'T':
-	    if ((arg = OPTARG(argc, argv)) != NULL)
-		phone_num = copy_of(arg);
-	    else
-		usage();
-	    break;
-
-	case 'U':
-	    if ((arg = OPTARG(argc, argv)) != NULL)
-		phone_num2 = copy_of(arg);
-	    else
-		usage();
-	    break;
-
-	default:
-	    usage();
-	    break;
-	}
-    }
-/*
- * Default the report file to the stderr location
- */
-    if (report_fp == NULL)
-	report_fp = stderr;
-
-    if (to_log) {
-#ifdef ultrix
-	openlog("chat", LOG_PID);
-#else
-	openlog("chat", LOG_PID | LOG_NDELAY, LOG_LOCAL2);
-
-	if (verbose)
-	    setlogmask(LOG_UPTO(LOG_INFO));
-	else
-	    setlogmask(LOG_UPTO(LOG_WARNING));
-#endif
-    }
-
-    init();
-    
-    if (chat_file != NULL) {
-	arg = ARG(argc, argv);
-	if (arg != NULL)
-	    usage();
-	else
-	    do_file (chat_file);
-    } else {
-	while ((arg = ARG(argc, argv)) != NULL) {
-	    chat_expect(arg);
-
-	    if ((arg = ARG(argc, argv)) != NULL)
-		chat_send(arg);
-	}
-    }
-
-    terminate(0);
-    return 0;
-}
-
-/*
- *  Process a chat script when read from a file.
- */
-
-void do_file (chat_file)
-char *chat_file;
-{
-    int linect, sendflg;
-    char *sp, *arg, quote;
-    char buf [STR_LEN];
-    FILE *cfp;
-
-    cfp = fopen (chat_file, "r");
-    if (cfp == NULL)
-	fatal(1, "%s -- open failed: %m", chat_file);
-
-    linect = 0;
-    sendflg = 0;
-
-    while (fgets(buf, STR_LEN, cfp) != NULL) {
-	sp = strchr (buf, '\n');
-	if (sp)
-	    *sp = '\0';
-
-	linect++;
-	sp = buf;
-
-        /* lines starting with '#' are comments. If a real '#'
-           is to be expected, it should be quoted .... */
-        if ( *sp == '#' )
-	    continue;
-
-	while (*sp != '\0') {
-	    if (*sp == ' ' || *sp == '\t') {
-		++sp;
-		continue;
-	    }
-
-	    if (*sp == '"' || *sp == '\'') {
-		quote = *sp++;
-		arg = sp;
-		while (*sp != quote) {
-		    if (*sp == '\0')
-			fatal(1, "unterminated quote (line %d)", linect);
-
-		    if (*sp++ == '\\') {
-			if (*sp != '\0')
-			    ++sp;
-		    }
-		}
-	    }
-	    else {
-		arg = sp;
-		while (*sp != '\0' && *sp != ' ' && *sp != '\t')
-		    ++sp;
-	    }
-
-	    if (*sp != '\0')
-		*sp++ = '\0';
-
-	    if (sendflg)
-		chat_send (arg);
-	    else
-		chat_expect (arg);
-	    sendflg = !sendflg;
-	}
-    }
-    fclose (cfp);
-}
-
-/*
- *	We got an error parsing the command line.
- */
-void usage()
-{
-    fprintf(stderr, "\
-Usage: %s [-e] [-E] [-v] [-V] [-t timeout] [-r report-file]\n\
-     [-T phone-number] [-U phone-number2] {-f chat-file | chat-script}\n", program_name);
-    exit(1);
-}
-
-char line[1024];
-
-/*
- * Send a message to syslog and/or stderr.
- */
-void logf __V((const char *fmt, ...))
-{
-    va_list args;
-
-#ifdef __STDC__
-    va_start(args, fmt);
-#else
-    char *fmt;
-    va_start(args);
-    fmt = va_arg(args, char *);
-#endif
-
-    vfmtmsg(line, sizeof(line), fmt, args);
-    if (to_log)
-	syslog(LOG_INFO, "%s", line);
-    if (to_stderr)
-	fprintf(stderr, "%s\n", line);
-}
-
-/*
- *	Print an error message and terminate.
- */
-
-void fatal __V((int code, const char *fmt, ...))
-{
-    va_list args;
-
-#ifdef __STDC__
-    va_start(args, fmt);
-#else
-    int code;
-    char *fmt;
-    va_start(args);
-    code = va_arg(args, int);
-    fmt = va_arg(args, char *);
-#endif
-
-    vfmtmsg(line, sizeof(line), fmt, args);
-    if (to_log)
-	syslog(LOG_ERR, "%s", line);
-    if (to_stderr)
-	fprintf(stderr, "%s\n", line);
-    terminate(code);
-}
-
-int alarmed = 0;
-
-SIGTYPE sigalrm(signo)
-int signo;
-{
-    int flags;
-
-    alarm(1);
-    alarmed = 1;		/* Reset alarm to avoid race window */
-    signal(SIGALRM, sigalrm);	/* that can cause hanging in read() */
-
-    if ((flags = fcntl(0, F_GETFL, 0)) == -1)
-	fatal(2, "Can't get file mode flags on stdin: %m");
-
-    if (fcntl(0, F_SETFL, flags | O_NONBLOCK) == -1)
-	fatal(2, "Can't set file mode flags on stdin: %m");
-
-    if (verbose)
-	logf("alarm");
-}
-
-void unalarm()
-{
-    int flags;
-
-    if ((flags = fcntl(0, F_GETFL, 0)) == -1)
-	fatal(2, "Can't get file mode flags on stdin: %m");
-
-    if (fcntl(0, F_SETFL, flags & ~O_NONBLOCK) == -1)
-	fatal(2, "Can't set file mode flags on stdin: %m");
-}
-
-SIGTYPE sigint(signo)
-int signo;
-{
-    fatal(2, "SIGINT");
-}
-
-SIGTYPE sigterm(signo)
-int signo;
-{
-    fatal(2, "SIGTERM");
-}
-
-SIGTYPE sighup(signo)
-int signo;
-{
-    fatal(2, "SIGHUP");
-}
-
-void init()
-{
-    signal(SIGINT, sigint);
-    signal(SIGTERM, sigterm);
-    signal(SIGHUP, sighup);
-
-    set_tty_parameters();
-    signal(SIGALRM, sigalrm);
-    alarm(0);
-    alarmed = 0;
-}
-
-void set_tty_parameters()
-{
-#if defined(get_term_param)
-    term_parms t;
-
-    if (get_term_param (&t) < 0)
-	fatal(2, "Can't get terminal parameters: %m");
-
-    saved_tty_parameters = t;
-    have_tty_parameters  = 1;
-
-    t.c_iflag     |= IGNBRK | ISTRIP | IGNPAR;
-    t.c_oflag      = 0;
-    t.c_lflag      = 0;
-    t.c_cc[VERASE] =
-    t.c_cc[VKILL]  = 0;
-    t.c_cc[VMIN]   = 1;
-    t.c_cc[VTIME]  = 0;
-
-    if (set_term_param (&t) < 0)
-	fatal(2, "Can't set terminal parameters: %m");
-#endif
-}
-
-void break_sequence()
-{
-#ifdef TERMIOS
-    tcsendbreak (0, 0);
-#endif
-}
-
-void terminate(status)
-int status;
-{
-    static int terminating = 0;
-
-    if (terminating)
-	exit(status);
-    terminating = 1;
-    echo_stderr(-1);
-/*
- * Allow the last of the report string to be gathered before we terminate.
- */
-    if (report_gathering) {
-	int c, rep_len;
-
-	rep_len = strlen(report_buffer);
-	while (rep_len + 1 <= sizeof(report_buffer)) {
-	    alarm(1);
-	    c = get_char();
-	    alarm(0);
-	    if (c < 0 || iscntrl(c))
-		break;
-	    report_buffer[rep_len] = c;
-	    ++rep_len;
-	}
-	report_buffer[rep_len] = 0;
-	fprintf (report_fp, "chat:  %s\n", report_buffer);
-    }
-    if (report_file != (char *) 0 && report_fp != (FILE *) NULL) {
-	if (verbose)
-	    fprintf (report_fp, "Closing \"%s\".\n", report_file);
-	fclose (report_fp);
-	report_fp = (FILE *) NULL;
-    }
-
-#if defined(get_term_param)
-    if (have_tty_parameters) {
-	if (set_term_param (&saved_tty_parameters) < 0)
-	    fatal(2, "Can't restore terminal parameters: %m");
-    }
-#endif
-
-    exit(status);
-}
-
-/*
- *	'Clean up' this string.
- */
-char *clean(s, sending)
-register char *s;
-int sending;  /* set to 1 when sending (putting) this string. */
-{
-    char temp[STR_LEN], env_str[STR_LEN], cur_chr;
-    register char *s1, *phchar;
-    int add_return = sending;
-#define isoctal(chr)	(((chr) >= '0') && ((chr) <= '7'))
-#define isalnumx(chr)	((((chr) >= '0') && ((chr) <= '9')) \
-			 || (((chr) >= 'a') && ((chr) <= 'z')) \
-			 || (((chr) >= 'A') && ((chr) <= 'Z')) \
-			 || (chr) == '_')
-
-    s1 = temp;
-    while (*s) {
-	cur_chr = *s++;
-	if (cur_chr == '^') {
-	    cur_chr = *s++;
-	    if (cur_chr == '\0') {
-		*s1++ = '^';
-		break;
-	    }
-	    cur_chr &= 0x1F;
-	    if (cur_chr != 0) {
-		*s1++ = cur_chr;
-	    }
-	    continue;
-	}
-	
-	if (use_env && cur_chr == '$') {		/* ARI */
-	    phchar = env_str;
-	    while (isalnumx(*s))
-		*phchar++ = *s++;
-	    *phchar = '\0';
-	    phchar = getenv(env_str);
-	    if (phchar)
-		while (*phchar)
-		    *s1++ = *phchar++;
-	    continue;
-	}
-
-	if (cur_chr != '\\') {
-	    *s1++ = cur_chr;
-	    continue;
-	}
-
-	cur_chr = *s++;
-	if (cur_chr == '\0') {
-	    if (sending) {
-		*s1++ = '\\';
-		*s1++ = '\\';
-	    }
-	    break;
-	}
-
-	switch (cur_chr) {
-	case 'b':
-	    *s1++ = '\b';
-	    break;
-
-	case 'c':
-	    if (sending && *s == '\0')
-		add_return = 0;
-	    else
-		*s1++ = cur_chr;
-	    break;
-
-	case '\\':
-	case 'K':
-	case 'p':
-	case 'd':
-	    if (sending)
-		*s1++ = '\\';
-	    *s1++ = cur_chr;
-	    break;
-
-	case 'T':
-	    if (sending && phone_num) {
-		for (phchar = phone_num; *phchar != '\0'; phchar++) 
-		    *s1++ = *phchar;
-	    }
-	    else {
-		*s1++ = '\\';
-		*s1++ = 'T';
-	    }
-	    break;
-
-	case 'U':
-	    if (sending && phone_num2) {
-		for (phchar = phone_num2; *phchar != '\0'; phchar++) 
-		    *s1++ = *phchar;
-	    }
-	    else {
-		*s1++ = '\\';
-		*s1++ = 'U';
-	    }
-	    break;
-
-	case 'q':
-	    quiet = 1;
-	    break;
-
-	case 'r':
-	    *s1++ = '\r';
-	    break;
-
-	case 'n':
-	    *s1++ = '\n';
-	    break;
-
-	case 's':
-	    *s1++ = ' ';
-	    break;
-
-	case 't':
-	    *s1++ = '\t';
-	    break;
-
-	case 'N':
-	    if (sending) {
-		*s1++ = '\\';
-		*s1++ = '\0';
-	    }
-	    else
-		*s1++ = 'N';
-	    break;
-	    
-	case '$':			/* ARI */
-	    if (use_env) {
-		*s1++ = cur_chr;
-		break;
-	    }
-	    /* FALL THROUGH */
-
-	default:
-	    if (isoctal (cur_chr)) {
-		cur_chr &= 0x07;
-		if (isoctal (*s)) {
-		    cur_chr <<= 3;
-		    cur_chr |= *s++ - '0';
-		    if (isoctal (*s)) {
-			cur_chr <<= 3;
-			cur_chr |= *s++ - '0';
-		    }
-		}
-
-		if (cur_chr != 0 || sending) {
-		    if (sending && (cur_chr == '\\' || cur_chr == 0))
-			*s1++ = '\\';
-		    *s1++ = cur_chr;
-		}
-		break;
-	    }
-
-	    if (sending)
-		*s1++ = '\\';
-	    *s1++ = cur_chr;
-	    break;
-	}
-    }
-
-    if (add_return)
-	*s1++ = '\r';
-
-    *s1++ = '\0'; /* guarantee closure */
-    *s1++ = '\0'; /* terminate the string */
-    return dup_mem (temp, (size_t) (s1 - temp)); /* may have embedded nuls */
-}
-
-/*
- * A modified version of 'strtok'. This version skips \ sequences.
- */
-
-char *expect_strtok (s, term)
-     char *s, *term;
-{
-    static  char *str   = "";
-    int	    escape_flag = 0;
-    char   *result;
-
-/*
- * If a string was specified then do initial processing.
- */
-    if (s)
-	str = s;
-
-/*
- * If this is the escape flag then reset it and ignore the character.
- */
-    if (*str)
-	result = str;
-    else
-	result = (char *) 0;
-
-    while (*str) {
-	if (escape_flag) {
-	    escape_flag = 0;
-	    ++str;
-	    continue;
-	}
-
-	if (*str == '\\') {
-	    ++str;
-	    escape_flag = 1;
-	    continue;
-	}
-
-/*
- * If this is not in the termination string, continue.
- */
-	if (strchr (term, *str) == (char *) 0) {
-	    ++str;
-	    continue;
-	}
-
-/*
- * This is the terminator. Mark the end of the string and stop.
- */
-	*str++ = '\0';
-	break;
-    }
-    return (result);
-}
-
-/*
- * Process the expect string
- */
-
-void chat_expect (s)
-char *s;
-{
-    char *expect;
-    char *reply;
-
-    if (strcmp(s, "HANGUP") == 0) {
-	++hup_next;
-        return;
-    }
- 
-    if (strcmp(s, "ABORT") == 0) {
-	++abort_next;
-	return;
-    }
-
-    if (strcmp(s, "CLR_ABORT") == 0) {
-	++clear_abort_next;
-	return;
-    }
-
-    if (strcmp(s, "REPORT") == 0) {
-	++report_next;
-	return;
-    }
-
-    if (strcmp(s, "CLR_REPORT") == 0) {
-	++clear_report_next;
-	return;
-    }
-
-    if (strcmp(s, "TIMEOUT") == 0) {
-	++timeout_next;
-	return;
-    }
-
-    if (strcmp(s, "ECHO") == 0) {
-	++echo_next;
-	return;
-    }
-
-    if (strcmp(s, "SAY") == 0) {
-	++say_next;
-	return;
-    }
-
-/*
- * Fetch the expect and reply string.
- */
-    for (;;) {
-	expect = expect_strtok (s, "-");
-	s      = (char *) 0;
-
-	if (expect == (char *) 0)
-	    return;
-
-	reply = expect_strtok (s, "-");
-
-/*
- * Handle the expect string. If successful then exit.
- */
-	if (get_string (expect))
-	    return;
-
-/*
- * If there is a sub-reply string then send it. Otherwise any condition
- * is terminal.
- */
-	if (reply == (char *) 0 || exit_code != 3)
-	    break;
-
-	chat_send (reply);
-    }
-
-/*
- * The expectation did not occur. This is terminal.
- */
-    if (fail_reason)
-	logf("Failed (%s)", fail_reason);
-    else
-	logf("Failed");
-    terminate(exit_code);
-}
-
-/*
- * Translate the input character to the appropriate string for printing
- * the data.
- */
-
-char *character(c)
-int c;
-{
-    static char string[10];
-    char *meta;
-
-    meta = (c & 0x80) ? "M-" : "";
-    c &= 0x7F;
-
-    if (c < 32)
-	sprintf(string, "%s^%c", meta, (int)c + '@');
-    else if (c == 127)
-	sprintf(string, "%s^?", meta);
-    else
-	sprintf(string, "%s%c", meta, c);
-
-    return (string);
-}
-
-/*
- *  process the reply string
- */
-void chat_send (s)
-register char *s;
-{
-    char file_data[STR_LEN];
-
-    if (say_next) {
-	say_next = 0;
-	s = clean(s, 1);
-	write(2, s, strlen(s));
-        free(s);
-	return;
-    }
-
-    if (hup_next) {
-        hup_next = 0;
-	if (strcmp(s, "OFF") == 0)
-           signal(SIGHUP, SIG_IGN);
-        else
-           signal(SIGHUP, sighup);
-        return;
-    }
-
-    if (echo_next) {
-	echo_next = 0;
-	echo = (strcmp(s, "ON") == 0);
-	return;
-    }
-
-    if (abort_next) {
-	char *s1;
-	
-	abort_next = 0;
-	
-	if (n_aborts >= MAX_ABORTS)
-	    fatal(2, "Too many ABORT strings");
-	
-	s1 = clean(s, 0);
-	
-	if (strlen(s1) > strlen(s)
-	    || strlen(s1) + 1 > sizeof(fail_buffer))
-	    fatal(1, "Illegal or too-long ABORT string ('%v')", s);
-
-	abort_string[n_aborts++] = s1;
-
-	if (verbose)
-	    logf("abort on (%v)", s);
-	return;
-    }
-
-    if (clear_abort_next) {
-	char *s1;
-	int   i;
-        int   old_max;
-	int   pack = 0;
-	
-	clear_abort_next = 0;
-	
-	s1 = clean(s, 0);
-	
-	if (strlen(s1) > strlen(s)
-	    || strlen(s1) + 1 > sizeof(fail_buffer))
-	    fatal(1, "Illegal or too-long CLR_ABORT string ('%v')", s);
-
-        old_max = n_aborts;
-	for (i=0; i < n_aborts; i++) {
-	    if ( strcmp(s1,abort_string[i]) == 0 ) {
-		free(abort_string[i]);
-		abort_string[i] = NULL;
-		pack++;
-		n_aborts--;
-		if (verbose)
-		    logf("clear abort on (%v)", s);
-	    }
-	}
-        free(s1);
-	if (pack)
-	    pack_array(abort_string,old_max);
-	return;
-    }
-
-    if (report_next) {
-	char *s1;
-	
-	report_next = 0;
-	if (n_reports >= MAX_REPORTS)
-	    fatal(2, "Too many REPORT strings");
-	
-	s1 = clean(s, 0);
-	
-	if (strlen(s1) > strlen(s) || strlen(s1) > sizeof fail_buffer - 1)
-	    fatal(1, "Illegal or too-long REPORT string ('%v')", s);
-	
-	report_string[n_reports++] = s1;
-	
-	if (verbose)
-	    logf("report (%v)", s);
-	return;
-    }
-
-    if (clear_report_next) {
-	char *s1;
-	int   i;
-	int   old_max;
-	int   pack = 0;
-	
-	clear_report_next = 0;
-	
-	s1 = clean(s, 0);
-	
-	if (strlen(s1) > strlen(s) || strlen(s1) > sizeof fail_buffer - 1)
-	    fatal(1, "Illegal or too-long REPORT string ('%v')", s);
-
-	old_max = n_reports;
-	for (i=0; i < n_reports; i++) {
-	    if ( strcmp(s1,report_string[i]) == 0 ) {
-		free(report_string[i]);
-		report_string[i] = NULL;
-		pack++;
-		n_reports--;
-		if (verbose)
-		    logf("clear report (%v)", s);
-	    }
-	}
-        free(s1);
-        if (pack)
-	    pack_array(report_string,old_max);
-	
-	return;
-    }
-
-    if (timeout_next) {
-	timeout_next = 0;
-	timeout = atoi(s);
-	
-	if (timeout <= 0)
-	    timeout = DEFAULT_CHAT_TIMEOUT;
-
-	if (verbose)
-	    logf("timeout set to %d seconds", timeout);
-
-	return;
-    }
-
-    /*
-     * The syntax @filename means read the string to send from the
-     * file `filename'.
-     */
-    if (s[0] == '@') {
-	/* skip the @ and any following white-space */
-	char *fn = s;
-	while (*++fn == ' ' || *fn == '\t')
-	    ;
-
-	if (*fn != 0) {
-	    FILE *f;
-	    int n = 0;
-
-	    /* open the file and read until STR_LEN-1 bytes or end-of-file */
-	    f = fopen(fn, "r");
-	    if (f == NULL)
-		fatal(1, "%s -- open failed: %m", fn);
-	    while (n < STR_LEN - 1) {
-		int nr = fread(&file_data[n], 1, STR_LEN - 1 - n, f);
-		if (nr < 0)
-		    fatal(1, "%s -- read error", fn);
-		if (nr == 0)
-		    break;
-		n += nr;
-	    }
-	    fclose(f);
-
-	    /* use the string we got as the string to send,
-	       but trim off the final newline if any. */
-	    if (n > 0 && file_data[n-1] == '\n')
-		--n;
-	    file_data[n] = 0;
-	    s = file_data;
-	}
-    }
-
-    if (strcmp(s, "EOT") == 0)
-	s = "^D\\c";
-    else if (strcmp(s, "BREAK") == 0)
-	s = "\\K\\c";
-
-    if (!put_string(s))
-	fatal(1, "Failed");
-}
-
-int get_char()
-{
-    int status;
-    char c;
-
-    status = read(0, &c, 1);
-
-    switch (status) {
-    case 1:
-	return ((int)c & 0x7F);
-
-    default:
-	logf("warning: read() on stdin returned %d", status);
-
-    case -1:
-	if ((status = fcntl(0, F_GETFL, 0)) == -1)
-	    fatal(2, "Can't get file mode flags on stdin: %m");
-
-	if (fcntl(0, F_SETFL, status & ~O_NONBLOCK) == -1)
-	    fatal(2, "Can't set file mode flags on stdin: %m");
-	
-	return (-1);
-    }
-}
-
-int put_char(c)
-int c;
-{
-    int status;
-    char ch = c;
-
-    usleep(10000);		/* inter-character typing delay (?) */
-
-    status = write(1, &ch, 1);
-
-    switch (status) {
-    case 1:
-	return (0);
-	
-    default:
-	logf("warning: write() on stdout returned %d", status);
-	
-    case -1:
-	if ((status = fcntl(0, F_GETFL, 0)) == -1)
-	    fatal(2, "Can't get file mode flags on stdin, %m");
-
-	if (fcntl(0, F_SETFL, status & ~O_NONBLOCK) == -1)
-	    fatal(2, "Can't set file mode flags on stdin: %m");
-	
-	return (-1);
-    }
-}
-
-int write_char (c)
-int c;
-{
-    if (alarmed || put_char(c) < 0) {
-	alarm(0);
-	alarmed = 0;
-
-	if (verbose) {
-	    if (errno == EINTR || errno == EWOULDBLOCK)
-		logf(" -- write timed out");
-	    else
-		logf(" -- write failed: %m");
-	}
-	return (0);
-    }
-    return (1);
-}
-
-int put_string (s)
-register char *s;
-{
-    quiet = 0;
-    s = clean(s, 1);
-
-    if (verbose) {
-	if (quiet)
-	    logf("send (??????)");
-	else
-	    logf("send (%v)", s);
-    }
-
-    alarm(timeout); alarmed = 0;
-
-    while (*s) {
-	register char c = *s++;
-
-	if (c != '\\') {
-	    if (!write_char (c))
-		return 0;
-	    continue;
-	}
-
-	c = *s++;
-	switch (c) {
-	case 'd':
-	    sleep(1);
-	    break;
-
-	case 'K':
-	    break_sequence();
-	    break;
-
-	case 'p':
-	    usleep(10000); 	/* 1/100th of a second (arg is microseconds) */
-	    break;
-
-	default:
-	    if (!write_char (c))
-		return 0;
-	    break;
-	}
-    }
-
-    alarm(0);
-    alarmed = 0;
-    return (1);
-}
-
-/*
- *	Echo a character to stderr.
- *	When called with -1, a '\n' character is generated when
- *	the cursor is not at the beginning of a line.
- */
-void echo_stderr(n)
-int n;
-{
-    static int need_lf;
-    char *s;
-
-    switch (n) {
-    case '\r':		/* ignore '\r' */
-	break;
-    case -1:
-	if (need_lf == 0)
-	    break;
-	/* fall through */
-    case '\n':
-	write(2, "\n", 1);
-	need_lf = 0;
-	break;
-    default:
-	s = character(n);
-	write(2, s, strlen(s));
-	need_lf = 1;
-	break;
-    }
-}
-
-/*
- *	'Wait for' this string to appear on this file descriptor.
- */
-int get_string(string)
-register char *string;
-{
-    char temp[STR_LEN];
-    int c, printed = 0, len, minlen;
-    register char *s = temp, *end = s + STR_LEN;
-    char *logged = temp;
-
-    fail_reason = (char *)0;
-    string = clean(string, 0);
-    len = strlen(string);
-    minlen = (len > sizeof(fail_buffer)? len: sizeof(fail_buffer)) - 1;
-
-    if (verbose)
-	logf("expect (%v)", string);
-
-    if (len > STR_LEN) {
-	logf("expect string is too long");
-	exit_code = 1;
-	return 0;
-    }
-
-    if (len == 0) {
-	if (verbose)
-	    logf("got it");
-	return (1);
-    }
-
-    alarm(timeout);
-    alarmed = 0;
-
-    while ( ! alarmed && (c = get_char()) >= 0) {
-	int n, abort_len, report_len;
-
-	if (echo)
-	    echo_stderr(c);
-	if (verbose && c == '\n') {
-	    if (s == logged)
-		logf("");	/* blank line */
-	    else
-		logf("%0.*v", s - logged, logged);
-	    logged = s + 1;
-	}
-
-	*s++ = c;
-
-	if (verbose && s >= logged + 80) {
-	    logf("%0.*v", s - logged, logged);
-	    logged = s;
-	}
-
-	if (Verbose) {
-	   if (c == '\n')
-	       fputc( '\n', stderr );
-	   else if (c != '\r')
-	       fprintf( stderr, "%s", character(c) );
-	}
-
-	if (!report_gathering) {
-	    for (n = 0; n < n_reports; ++n) {
-		if ((report_string[n] != (char*) NULL) &&
-		    s - temp >= (report_len = strlen(report_string[n])) &&
-		    strncmp(s - report_len, report_string[n], report_len) == 0) {
-		    time_t time_now   = time ((time_t*) NULL);
-		    struct tm* tm_now = localtime (&time_now);
-
-		    strftime (report_buffer, 20, "%b %d %H:%M:%S ", tm_now);
-		    strcat (report_buffer, report_string[n]);
-
-		    report_string[n] = (char *) NULL;
-		    report_gathering = 1;
-		    break;
-		}
-	    }
-	}
-	else {
-	    if (!iscntrl (c)) {
-		int rep_len = strlen (report_buffer);
-		report_buffer[rep_len]     = c;
-		report_buffer[rep_len + 1] = '\0';
-	    }
-	    else {
-		report_gathering = 0;
-		fprintf (report_fp, "chat:  %s\n", report_buffer);
-	    }
-	}
-
-	if (s - temp >= len &&
-	    c == string[len - 1] &&
-	    strncmp(s - len, string, len) == 0) {
-	    if (verbose) {
-		if (s > logged)
-		    logf("%0.*v", s - logged, logged);
-		logf(" -- got it\n");
-	    }
-
-	    alarm(0);
-	    alarmed = 0;
-	    return (1);
-	}
-
-	for (n = 0; n < n_aborts; ++n) {
-	    if (s - temp >= (abort_len = strlen(abort_string[n])) &&
-		strncmp(s - abort_len, abort_string[n], abort_len) == 0) {
-		if (verbose) {
-		    if (s > logged)
-			logf("%0.*v", s - logged, logged);
-		    logf(" -- failed");
-		}
-
-		alarm(0);
-		alarmed = 0;
-		exit_code = n + 4;
-		strcpy(fail_reason = fail_buffer, abort_string[n]);
-		return (0);
-	    }
-	}
-
-	if (s >= end) {
-	    if (logged < s - minlen) {
-		if (verbose)
-		    logf("%0.*v", s - logged, logged);
-		logged = s;
-	    }
-	    s -= minlen;
-	    memmove(temp, s, minlen);
-	    logged = temp + (logged - s);
-	    s = temp + minlen;
-	}
-
-	if (alarmed && verbose)
-	    logf("warning: alarm synchronization problem");
-    }
-
-    alarm(0);
-    
-    if (verbose && printed) {
-	if (alarmed)
-	    logf(" -- read timed out");
-	else
-	    logf(" -- read failed: %m");
-    }
-
-    exit_code = 3;
-    alarmed   = 0;
-    return (0);
-}
-
-/*
- * Gross kludge to handle Solaris versions >= 2.6 having usleep.
- */
-#ifdef SOL2
-#include <sys/param.h>
-#if MAXUID > 65536		/* then this is Solaris 2.6 or later */
-#undef NO_USLEEP
-#endif
-#endif /* SOL2 */
-
-#ifdef NO_USLEEP
-#include <sys/types.h>
-#include <sys/time.h>
-
-/*
-  usleep -- support routine for 4.2BSD system call emulations
-  last edit:  29-Oct-1984     D A Gwyn
-  */
-
-extern int	  select();
-
-int
-usleep( usec )				  /* returns 0 if ok, else -1 */
-    long		usec;		/* delay in microseconds */
-{
-    static struct {		/* `timeval' */
-	long	tv_sec;		/* seconds */
-	long	tv_usec;	/* microsecs */
-    } delay;	    		/* _select() timeout */
-
-    delay.tv_sec  = usec / 1000000L;
-    delay.tv_usec = usec % 1000000L;
-
-    return select(0, (long *)0, (long *)0, (long *)0, &delay);
-}
-#endif
-
-void
-pack_array (array, end)
-    char **array; /* The address of the array of string pointers */
-    int    end;   /* The index of the next free entry before CLR_ */
-{
-    int i, j;
-
-    for (i = 0; i < end; i++) {
-	if (array[i] == NULL) {
-	    for (j = i+1; j < end; ++j)
-		if (array[j] != NULL)
-		    array[i++] = array[j];
-	    for (; i < end; ++i)
-		array[i] = NULL;
-	    break;
-	}
-    }
-}
-
-/*
- * vfmtmsg - format a message into a buffer.  Like vsprintf except we
- * also specify the length of the output buffer, and we handle the
- * %m (error message) format.
- * Doesn't do floating-point formats.
- * Returns the number of chars put into buf.
- */
-#define OUTCHAR(c)	(buflen > 0? (--buflen, *buf++ = (c)): 0)
-
-int
-vfmtmsg(buf, buflen, fmt, args)
-    char *buf;
-    int buflen;
-    const char *fmt;
-    va_list args;
-{
-    int c, i, n;
-    int width, prec, fillch;
-    int base, len, neg, quoted;
-    unsigned long val = 0;
-    char *str, *buf0;
-    const char *f;
-    unsigned char *p;
-    char num[32];
-    static char hexchars[] = "0123456789abcdef";
-
-    buf0 = buf;
-    --buflen;
-    while (buflen > 0) {
-	for (f = fmt; *f != '%' && *f != 0; ++f)
-	    ;
-	if (f > fmt) {
-	    len = f - fmt;
-	    if (len > buflen)
-		len = buflen;
-	    memcpy(buf, fmt, len);
-	    buf += len;
-	    buflen -= len;
-	    fmt = f;
-	}
-	if (*fmt == 0)
-	    break;
-	c = *++fmt;
-	width = prec = 0;
-	fillch = ' ';
-	if (c == '0') {
-	    fillch = '0';
-	    c = *++fmt;
-	}
-	if (c == '*') {
-	    width = va_arg(args, int);
-	    c = *++fmt;
-	} else {
-	    while (isdigit(c)) {
-		width = width * 10 + c - '0';
-		c = *++fmt;
-	    }
-	}
-	if (c == '.') {
-	    c = *++fmt;
-	    if (c == '*') {
-		prec = va_arg(args, int);
-		c = *++fmt;
-	    } else {
-		while (isdigit(c)) {
-		    prec = prec * 10 + c - '0';
-		    c = *++fmt;
-		}
-	    }
-	}
-	str = 0;
-	base = 0;
-	neg = 0;
-	++fmt;
-	switch (c) {
-	case 'd':
-	    i = va_arg(args, int);
-	    if (i < 0) {
-		neg = 1;
-		val = -i;
-	    } else
-		val = i;
-	    base = 10;
-	    break;
-	case 'o':
-	    val = va_arg(args, unsigned int);
-	    base = 8;
-	    break;
-	case 'x':
-	    val = va_arg(args, unsigned int);
-	    base = 16;
-	    break;
-	case 'p':
-	    val = (unsigned long) va_arg(args, void *);
-	    base = 16;
-	    neg = 2;
-	    break;
-	case 's':
-	    str = va_arg(args, char *);
-	    break;
-	case 'c':
-	    num[0] = va_arg(args, int);
-	    num[1] = 0;
-	    str = num;
-	    break;
-	case 'm':
-	    str = strerror(errno);
-	    break;
-	case 'v':		/* "visible" string */
-	case 'q':		/* quoted string */
-	    quoted = c == 'q';
-	    p = va_arg(args, unsigned char *);
-	    if (fillch == '0' && prec > 0) {
-		n = prec;
-	    } else {
-		n = strlen((char *)p);
-		if (prec > 0 && prec < n)
-		    n = prec;
-	    }
-	    while (n > 0 && buflen > 0) {
-		c = *p++;
-		--n;
-		if (!quoted && c >= 0x80) {
-		    OUTCHAR('M');
-		    OUTCHAR('-');
-		    c -= 0x80;
-		}
-		if (quoted && (c == '"' || c == '\\'))
-		    OUTCHAR('\\');
-		if (c < 0x20 || (0x7f <= c && c < 0xa0)) {
-		    if (quoted) {
-			OUTCHAR('\\');
-			switch (c) {
-			case '\t':	OUTCHAR('t');	break;
-			case '\n':	OUTCHAR('n');	break;
-			case '\b':	OUTCHAR('b');	break;
-			case '\f':	OUTCHAR('f');	break;
-			default:
-			    OUTCHAR('x');
-			    OUTCHAR(hexchars[c >> 4]);
-			    OUTCHAR(hexchars[c & 0xf]);
-			}
-		    } else {
-			if (c == '\t')
-			    OUTCHAR(c);
-			else {
-			    OUTCHAR('^');
-			    OUTCHAR(c ^ 0x40);
-			}
-		    }
-		} else
-		    OUTCHAR(c);
-	    }
-	    continue;
-	default:
-	    *buf++ = '%';
-	    if (c != '%')
-		--fmt;		/* so %z outputs %z etc. */
-	    --buflen;
-	    continue;
-	}
-	if (base != 0) {
-	    str = num + sizeof(num);
-	    *--str = 0;
-	    while (str > num + neg) {
-		*--str = hexchars[val % base];
-		val = val / base;
-		if (--prec <= 0 && val == 0)
-		    break;
-	    }
-	    switch (neg) {
-	    case 1:
-		*--str = '-';
-		break;
-	    case 2:
-		*--str = 'x';
-		*--str = '0';
-		break;
-	    }
-	    len = num + sizeof(num) - 1 - str;
-	} else {
-	    len = strlen(str);
-	    if (prec > 0 && len > prec)
-		len = prec;
-	}
-	if (width > 0) {
-	    if (width > buflen)
-		width = buflen;
-	    if ((n = width - len) > 0) {
-		buflen -= n;
-		for (; n > 0; --n)
-		    *buf++ = fillch;
-	    }
-	}
-	if (len > buflen)
-	    len = buflen;
-	memcpy(buf, str, len);
-	buf += len;
-	buflen -= len;
-    }
-    *buf = 0;
-    return buf - buf0;
-}
diff --git a/mdk-stage1/ppp/common/zlib.c b/mdk-stage1/ppp/common/zlib.c
deleted file mode 100644
index f4d2cc266..000000000
--- a/mdk-stage1/ppp/common/zlib.c
+++ /dev/null
@@ -1,5376 +0,0 @@
-/*
- * This file is derived from various .h and .c files from the zlib-1.0.4
- * distribution by Jean-loup Gailly and Mark Adler, with some additions
- * by Paul Mackerras to aid in implementing Deflate compression and
- * decompression for PPP packets.  See zlib.h for conditions of
- * distribution and use.
- *
- * Changes that have been made include:
- * - added Z_PACKET_FLUSH (see zlib.h for details)
- * - added inflateIncomp and deflateOutputPending
- * - allow strm->next_out to be NULL, meaning discard the output
- *
- * $Id: zlib.c 195720 2001-06-11 11:44:34Z gc $
- */
-
-/* 
- *  ==FILEVERSION 971210==
- *
- * This marker is used by the Linux installation script to determine
- * whether an up-to-date version of this file is already installed.
- */
-
-#define NO_DUMMY_DECL
-#define NO_ZCFUNCS
-#define MY_ZCALLOC
-
-#if defined(__FreeBSD__) && (defined(KERNEL) || defined(_KERNEL))
-#define inflate	inflate_ppp	/* FreeBSD already has an inflate :-( */
-#endif
-
-
-/* +++ zutil.h */
-/* zutil.h -- internal interface and configuration of the compression library
- * Copyright (C) 1995-1996 Jean-loup Gailly.
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* WARNING: this file should *not* be used by applications. It is
-   part of the implementation of the compression library and is
-   subject to change. Applications should only use zlib.h.
- */
-
-/* From: zutil.h,v 1.16 1996/07/24 13:41:13 me Exp $ */
-
-#ifndef _Z_UTIL_H
-#define _Z_UTIL_H
-
-#include "zlib.h"
-
-#if defined(KERNEL) || defined(_KERNEL)
-/* Assume this is a *BSD or SVR4 kernel */
-#include <sys/types.h>
-#include <sys/time.h>
-#include <sys/systm.h>
-#undef u
-#  define HAVE_MEMCPY
-#  define memcpy(d, s, n)	bcopy((s), (d), (n))
-#  define memset(d, v, n)	bzero((d), (n))
-#  define memcmp		bcmp
-
-#else
-#if defined(__KERNEL__)
-/* Assume this is a Linux kernel */
-#include <linux/string.h>
-#define HAVE_MEMCPY
-
-#else /* not kernel */
-
-#if defined(MSDOS)||defined(VMS)||defined(CRAY)||defined(WIN32)||defined(RISCOS)
-#   include <stddef.h>
-#   include <errno.h>
-#else
-    extern int errno;
-#endif
-#ifdef STDC
-#  include <string.h>
-#  include <stdlib.h>
-#endif
-#endif /* __KERNEL__ */
-#endif /* _KERNEL || KERNEL */
-
-#ifndef local
-#  define local static
-#endif
-/* compile with -Dlocal if your debugger can't find static symbols */
-
-typedef unsigned char  uch;
-typedef uch FAR uchf;
-typedef unsigned short ush;
-typedef ush FAR ushf;
-typedef unsigned long  ulg;
-
-extern const char *z_errmsg[10]; /* indexed by 2-zlib_error */
-/* (size given to avoid silly warnings with Visual C++) */
-
-#define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]
-
-#define ERR_RETURN(strm,err) \
-  return (strm->msg = (char*)ERR_MSG(err), (err))
-/* To be used only when the state is known to be valid */
-
-        /* common constants */
-
-#ifndef DEF_WBITS
-#  define DEF_WBITS MAX_WBITS
-#endif
-/* default windowBits for decompression. MAX_WBITS is for compression only */
-
-#if MAX_MEM_LEVEL >= 8
-#  define DEF_MEM_LEVEL 8
-#else
-#  define DEF_MEM_LEVEL  MAX_MEM_LEVEL
-#endif
-/* default memLevel */
-
-#define STORED_BLOCK 0
-#define STATIC_TREES 1
-#define DYN_TREES    2
-/* The three kinds of block type */
-
-#define MIN_MATCH  3
-#define MAX_MATCH  258
-/* The minimum and maximum match lengths */
-
-#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
-
-        /* target dependencies */
-
-#ifdef MSDOS
-#  define OS_CODE  0x00
-#  ifdef __TURBOC__
-#    include <alloc.h>
-#  else /* MSC or DJGPP */
-#    include <malloc.h>
-#  endif
-#endif
-
-#ifdef OS2
-#  define OS_CODE  0x06
-#endif
-
-#ifdef WIN32 /* Window 95 & Windows NT */
-#  define OS_CODE  0x0b
-#endif
-
-#if defined(VAXC) || defined(VMS)
-#  define OS_CODE  0x02
-#  define FOPEN(name, mode) \
-     fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
-#endif
-
-#ifdef AMIGA
-#  define OS_CODE  0x01
-#endif
-
-#if defined(ATARI) || defined(atarist)
-#  define OS_CODE  0x05
-#endif
-
-#ifdef MACOS
-#  define OS_CODE  0x07
-#endif
-
-#ifdef __50SERIES /* Prime/PRIMOS */
-#  define OS_CODE  0x0F
-#endif
-
-#ifdef TOPS20
-#  define OS_CODE  0x0a
-#endif
-
-#if defined(_BEOS_) || defined(RISCOS)
-#  define fdopen(fd,mode) NULL /* No fdopen() */
-#endif
-
-        /* Common defaults */
-
-#ifndef OS_CODE
-#  define OS_CODE  0x03  /* assume Unix */
-#endif
-
-#ifndef FOPEN
-#  define FOPEN(name, mode) fopen((name), (mode))
-#endif
-
-         /* functions */
-
-#ifdef HAVE_STRERROR
-   extern char *strerror OF((int));
-#  define zstrerror(errnum) strerror(errnum)
-#else
-#  define zstrerror(errnum) ""
-#endif
-
-#if defined(pyr)
-#  define NO_MEMCPY
-#endif
-#if (defined(M_I86SM) || defined(M_I86MM)) && !defined(_MSC_VER)
- /* Use our own functions for small and medium model with MSC <= 5.0.
-  * You may have to use the same strategy for Borland C (untested).
-  */
-#  define NO_MEMCPY
-#endif
-#if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY)
-#  define HAVE_MEMCPY
-#endif
-#ifdef HAVE_MEMCPY
-#  ifdef SMALL_MEDIUM /* MSDOS small or medium model */
-#    define zmemcpy _fmemcpy
-#    define zmemcmp _fmemcmp
-#    define zmemzero(dest, len) _fmemset(dest, 0, len)
-#  else
-#    define zmemcpy memcpy
-#    define zmemcmp memcmp
-#    define zmemzero(dest, len) memset(dest, 0, len)
-#  endif
-#else
-   extern void zmemcpy  OF((Bytef* dest, Bytef* source, uInt len));
-   extern int  zmemcmp  OF((Bytef* s1,   Bytef* s2, uInt len));
-   extern void zmemzero OF((Bytef* dest, uInt len));
-#endif
-
-/* Diagnostic functions */
-#ifdef DEBUG_ZLIB
-#  include <stdio.h>
-#  ifndef verbose
-#    define verbose 0
-#  endif
-   extern void z_error    OF((char *m));
-#  define Assert(cond,msg) {if(!(cond)) z_error(msg);}
-#  define Trace(x) fprintf x
-#  define Tracev(x) {if (verbose) fprintf x ;}
-#  define Tracevv(x) {if (verbose>1) fprintf x ;}
-#  define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
-#  define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
-#else
-#  define Assert(cond,msg)
-#  define Trace(x)
-#  define Tracev(x)
-#  define Tracevv(x)
-#  define Tracec(c,x)
-#  define Tracecv(c,x)
-#endif
-
-
-typedef uLong (*check_func) OF((uLong check, const Bytef *buf, uInt len));
-
-voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size));
-void   zcfree  OF((voidpf opaque, voidpf ptr));
-
-#define ZALLOC(strm, items, size) \
-           (*((strm)->zalloc))((strm)->opaque, (items), (size))
-#define ZFREE(strm, addr)  (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
-#define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
-
-#endif /* _Z_UTIL_H */
-/* --- zutil.h */
-
-/* +++ deflate.h */
-/* deflate.h -- internal compression state
- * Copyright (C) 1995-1996 Jean-loup Gailly
- * For conditions of distribution and use, see copyright notice in zlib.h 
- */
-
-/* WARNING: this file should *not* be used by applications. It is
-   part of the implementation of the compression library and is
-   subject to change. Applications should only use zlib.h.
- */
-
-/* From: deflate.h,v 1.10 1996/07/02 12:41:00 me Exp $ */
-
-#ifndef _DEFLATE_H
-#define _DEFLATE_H
-
-/* #include "zutil.h" */
-
-/* ===========================================================================
- * Internal compression state.
- */
-
-#define LENGTH_CODES 29
-/* number of length codes, not counting the special END_BLOCK code */
-
-#define LITERALS  256
-/* number of literal bytes 0..255 */
-
-#define L_CODES (LITERALS+1+LENGTH_CODES)
-/* number of Literal or Length codes, including the END_BLOCK code */
-
-#define D_CODES   30
-/* number of distance codes */
-
-#define BL_CODES  19
-/* number of codes used to transfer the bit lengths */
-
-#define HEAP_SIZE (2*L_CODES+1)
-/* maximum heap size */
-
-#define MAX_BITS 15
-/* All codes must not exceed MAX_BITS bits */
-
-#define INIT_STATE    42
-#define BUSY_STATE   113
-#define FINISH_STATE 666
-/* Stream status */
-
-
-/* Data structure describing a single value and its code string. */
-typedef struct ct_data_s {
-    union {
-        ush  freq;       /* frequency count */
-        ush  code;       /* bit string */
-    } fc;
-    union {
-        ush  dad;        /* father node in Huffman tree */
-        ush  len;        /* length of bit string */
-    } dl;
-} FAR ct_data;
-
-#define Freq fc.freq
-#define Code fc.code
-#define Dad  dl.dad
-#define Len  dl.len
-
-typedef struct static_tree_desc_s  static_tree_desc;
-
-typedef struct tree_desc_s {
-    ct_data *dyn_tree;           /* the dynamic tree */
-    int     max_code;            /* largest code with non zero frequency */
-    static_tree_desc *stat_desc; /* the corresponding static tree */
-} FAR tree_desc;
-
-typedef ush Pos;
-typedef Pos FAR Posf;
-typedef unsigned IPos;
-
-/* A Pos is an index in the character window. We use short instead of int to
- * save space in the various tables. IPos is used only for parameter passing.
- */
-
-typedef struct deflate_state {
-    z_streamp strm;      /* pointer back to this zlib stream */
-    int   status;        /* as the name implies */
-    Bytef *pending_buf;  /* output still pending */
-    ulg   pending_buf_size; /* size of pending_buf */
-    Bytef *pending_out;  /* next pending byte to output to the stream */
-    int   pending;       /* nb of bytes in the pending buffer */
-    int   noheader;      /* suppress zlib header and adler32 */
-    Byte  data_type;     /* UNKNOWN, BINARY or ASCII */
-    Byte  method;        /* STORED (for zip only) or DEFLATED */
-    int   last_flush;    /* value of flush param for previous deflate call */
-
-                /* used by deflate.c: */
-
-    uInt  w_size;        /* LZ77 window size (32K by default) */
-    uInt  w_bits;        /* log2(w_size)  (8..16) */
-    uInt  w_mask;        /* w_size - 1 */
-
-    Bytef *window;
-    /* Sliding window. Input bytes are read into the second half of the window,
-     * and move to the first half later to keep a dictionary of at least wSize
-     * bytes. With this organization, matches are limited to a distance of
-     * wSize-MAX_MATCH bytes, but this ensures that IO is always
-     * performed with a length multiple of the block size. Also, it limits
-     * the window size to 64K, which is quite useful on MSDOS.
-     * To do: use the user input buffer as sliding window.
-     */
-
-    ulg window_size;
-    /* Actual size of window: 2*wSize, except when the user input buffer
-     * is directly used as sliding window.
-     */
-
-    Posf *prev;
-    /* Link to older string with same hash index. To limit the size of this
-     * array to 64K, this link is maintained only for the last 32K strings.
-     * An index in this array is thus a window index modulo 32K.
-     */
-
-    Posf *head; /* Heads of the hash chains or NIL. */
-
-    uInt  ins_h;          /* hash index of string to be inserted */
-    uInt  hash_size;      /* number of elements in hash table */
-    uInt  hash_bits;      /* log2(hash_size) */
-    uInt  hash_mask;      /* hash_size-1 */
-
-    uInt  hash_shift;
-    /* Number of bits by which ins_h must be shifted at each input
-     * step. It must be such that after MIN_MATCH steps, the oldest
-     * byte no longer takes part in the hash key, that is:
-     *   hash_shift * MIN_MATCH >= hash_bits
-     */
-
-    long block_start;
-    /* Window position at the beginning of the current output block. Gets
-     * negative when the window is moved backwards.
-     */
-
-    uInt match_length;           /* length of best match */
-    IPos prev_match;             /* previous match */
-    int match_available;         /* set if previous match exists */
-    uInt strstart;               /* start of string to insert */
-    uInt match_start;            /* start of matching string */
-    uInt lookahead;              /* number of valid bytes ahead in window */
-
-    uInt prev_length;
-    /* Length of the best match at previous step. Matches not greater than this
-     * are discarded. This is used in the lazy match evaluation.
-     */
-
-    uInt max_chain_length;
-    /* To speed up deflation, hash chains are never searched beyond this
-     * length.  A higher limit improves compression ratio but degrades the
-     * speed.
-     */
-
-    uInt max_lazy_match;
-    /* Attempt to find a better match only when the current match is strictly
-     * smaller than this value. This mechanism is used only for compression
-     * levels >= 4.
-     */
-#   define max_insert_length  max_lazy_match
-    /* Insert new strings in the hash table only if the match length is not
-     * greater than this length. This saves time but degrades compression.
-     * max_insert_length is used only for compression levels <= 3.
-     */
-
-    int level;    /* compression level (1..9) */
-    int strategy; /* favor or force Huffman coding*/
-
-    uInt good_match;
-    /* Use a faster search when the previous match is longer than this */
-
-    int nice_match; /* Stop searching when current match exceeds this */
-
-                /* used by trees.c: */
-    /* Didn't use ct_data typedef below to supress compiler warning */
-    struct ct_data_s dyn_ltree[HEAP_SIZE];   /* literal and length tree */
-    struct ct_data_s dyn_dtree[2*D_CODES+1]; /* distance tree */
-    struct ct_data_s bl_tree[2*BL_CODES+1];  /* Huffman tree for bit lengths */
-
-    struct tree_desc_s l_desc;               /* desc. for literal tree */
-    struct tree_desc_s d_desc;               /* desc. for distance tree */
-    struct tree_desc_s bl_desc;              /* desc. for bit length tree */
-
-    ush bl_count[MAX_BITS+1];
-    /* number of codes at each bit length for an optimal tree */
-
-    int heap[2*L_CODES+1];      /* heap used to build the Huffman trees */
-    int heap_len;               /* number of elements in the heap */
-    int heap_max;               /* element of largest frequency */
-    /* The sons of heap[n] are heap[2*n] and heap[2*n+1]. heap[0] is not used.
-     * The same heap array is used to build all trees.
-     */
-
-    uch depth[2*L_CODES+1];
-    /* Depth of each subtree used as tie breaker for trees of equal frequency
-     */
-
-    uchf *l_buf;          /* buffer for literals or lengths */
-
-    uInt  lit_bufsize;
-    /* Size of match buffer for literals/lengths.  There are 4 reasons for
-     * limiting lit_bufsize to 64K:
-     *   - frequencies can be kept in 16 bit counters
-     *   - if compression is not successful for the first block, all input
-     *     data is still in the window so we can still emit a stored block even
-     *     when input comes from standard input.  (This can also be done for
-     *     all blocks if lit_bufsize is not greater than 32K.)
-     *   - if compression is not successful for a file smaller than 64K, we can
-     *     even emit a stored file instead of a stored block (saving 5 bytes).
-     *     This is applicable only for zip (not gzip or zlib).
-     *   - creating new Huffman trees less frequently may not provide fast
-     *     adaptation to changes in the input data statistics. (Take for
-     *     example a binary file with poorly compressible code followed by
-     *     a highly compressible string table.) Smaller buffer sizes give
-     *     fast adaptation but have of course the overhead of transmitting
-     *     trees more frequently.
-     *   - I can't count above 4
-     */
-
-    uInt last_lit;      /* running index in l_buf */
-
-    ushf *d_buf;
-    /* Buffer for distances. To simplify the code, d_buf and l_buf have
-     * the same number of elements. To use different lengths, an extra flag
-     * array would be necessary.
-     */
-
-    ulg opt_len;        /* bit length of current block with optimal trees */
-    ulg static_len;     /* bit length of current block with static trees */
-    ulg compressed_len; /* total bit length of compressed file */
-    uInt matches;       /* number of string matches in current block */
-    int last_eob_len;   /* bit length of EOB code for last block */
-
-#ifdef DEBUG_ZLIB
-    ulg bits_sent;      /* bit length of the compressed data */
-#endif
-
-    ush bi_buf;
-    /* Output buffer. bits are inserted starting at the bottom (least
-     * significant bits).
-     */
-    int bi_valid;
-    /* Number of valid bits in bi_buf.  All bits above the last valid bit
-     * are always zero.
-     */
-
-} FAR deflate_state;
-
-/* Output a byte on the stream.
- * IN assertion: there is enough room in pending_buf.
- */
-#define put_byte(s, c) {s->pending_buf[s->pending++] = (c);}
-
-
-#define MIN_LOOKAHEAD (MAX_MATCH+MIN_MATCH+1)
-/* Minimum amount of lookahead, except at the end of the input file.
- * See deflate.c for comments about the MIN_MATCH+1.
- */
-
-#define MAX_DIST(s)  ((s)->w_size-MIN_LOOKAHEAD)
-/* In order to simplify the code, particularly on 16 bit machines, match
- * distances are limited to MAX_DIST instead of WSIZE.
- */
-
-        /* in trees.c */
-void _tr_init         OF((deflate_state *s));
-int  _tr_tally        OF((deflate_state *s, unsigned dist, unsigned lc));
-ulg  _tr_flush_block  OF((deflate_state *s, charf *buf, ulg stored_len,
-			  int eof));
-void _tr_align        OF((deflate_state *s));
-void _tr_stored_block OF((deflate_state *s, charf *buf, ulg stored_len,
-                          int eof));
-void _tr_stored_type_only OF((deflate_state *));
-
-#endif
-/* --- deflate.h */
-
-/* +++ deflate.c */
-/* deflate.c -- compress data using the deflation algorithm
- * Copyright (C) 1995-1996 Jean-loup Gailly.
- * For conditions of distribution and use, see copyright notice in zlib.h 
- */
-
-/*
- *  ALGORITHM
- *
- *      The "deflation" process depends on being able to identify portions
- *      of the input text which are identical to earlier input (within a
- *      sliding window trailing behind the input currently being processed).
- *
- *      The most straightforward technique turns out to be the fastest for
- *      most input files: try all possible matches and select the longest.
- *      The key feature of this algorithm is that insertions into the string
- *      dictionary are very simple and thus fast, and deletions are avoided
- *      completely. Insertions are performed at each input character, whereas
- *      string matches are performed only when the previous match ends. So it
- *      is preferable to spend more time in matches to allow very fast string
- *      insertions and avoid deletions. The matching algorithm for small
- *      strings is inspired from that of Rabin & Karp. A brute force approach
- *      is used to find longer strings when a small match has been found.
- *      A similar algorithm is used in comic (by Jan-Mark Wams) and freeze
- *      (by Leonid Broukhis).
- *         A previous version of this file used a more sophisticated algorithm
- *      (by Fiala and Greene) which is guaranteed to run in linear amortized
- *      time, but has a larger average cost, uses more memory and is patented.
- *      However the F&G algorithm may be faster for some highly redundant
- *      files if the parameter max_chain_length (described below) is too large.
- *
- *  ACKNOWLEDGEMENTS
- *
- *      The idea of lazy evaluation of matches is due to Jan-Mark Wams, and
- *      I found it in 'freeze' written by Leonid Broukhis.
- *      Thanks to many people for bug reports and testing.
- *
- *  REFERENCES
- *
- *      Deutsch, L.P.,"DEFLATE Compressed Data Format Specification".
- *      Available in ftp://ds.internic.net/rfc/rfc1951.txt
- *
- *      A description of the Rabin and Karp algorithm is given in the book
- *         "Algorithms" by R. Sedgewick, Addison-Wesley, p252.
- *
- *      Fiala,E.R., and Greene,D.H.
- *         Data Compression with Finite Windows, Comm.ACM, 32,4 (1989) 490-595
- *
- */
-
-/* From: deflate.c,v 1.15 1996/07/24 13:40:58 me Exp $ */
-
-/* #include "deflate.h" */
-
-char deflate_copyright[] = " deflate 1.0.4 Copyright 1995-1996 Jean-loup Gailly ";
-/*
-  If you use the zlib library in a product, an acknowledgment is welcome
-  in the documentation of your product. If for some reason you cannot
-  include such an acknowledgment, I would appreciate that you keep this
-  copyright string in the executable of your product.
- */
-
-/* ===========================================================================
- *  Function prototypes.
- */
-typedef enum {
-    need_more,      /* block not completed, need more input or more output */
-    block_done,     /* block flush performed */
-    finish_started, /* finish started, need only more output at next deflate */
-    finish_done     /* finish done, accept no more input or output */
-} block_state;
-
-typedef block_state (*compress_func) OF((deflate_state *s, int flush));
-/* Compression function. Returns the block state after the call. */
-
-local void fill_window    OF((deflate_state *s));
-local block_state deflate_stored OF((deflate_state *s, int flush));
-local block_state deflate_fast   OF((deflate_state *s, int flush));
-local block_state deflate_slow   OF((deflate_state *s, int flush));
-local void lm_init        OF((deflate_state *s));
-local void putShortMSB    OF((deflate_state *s, uInt b));
-local void flush_pending  OF((z_streamp strm));
-local int read_buf        OF((z_streamp strm, charf *buf, unsigned size));
-#ifdef ASMV
-      void match_init OF((void)); /* asm code initialization */
-      uInt longest_match  OF((deflate_state *s, IPos cur_match));
-#else
-local uInt longest_match  OF((deflate_state *s, IPos cur_match));
-#endif
-
-#ifdef DEBUG_ZLIB
-local  void check_match OF((deflate_state *s, IPos start, IPos match,
-                            int length));
-#endif
-
-/* ===========================================================================
- * Local data
- */
-
-#define NIL 0
-/* Tail of hash chains */
-
-#ifndef TOO_FAR
-#  define TOO_FAR 4096
-#endif
-/* Matches of length 3 are discarded if their distance exceeds TOO_FAR */
-
-#define MIN_LOOKAHEAD (MAX_MATCH+MIN_MATCH+1)
-/* Minimum amount of lookahead, except at the end of the input file.
- * See deflate.c for comments about the MIN_MATCH+1.
- */
-
-/* Values for max_lazy_match, good_match and max_chain_length, depending on
- * the desired pack level (0..9). The values given below have been tuned to
- * exclude worst case performance for pathological files. Better values may be
- * found for specific files.
- */
-typedef struct config_s {
-   ush good_length; /* reduce lazy search above this match length */
-   ush max_lazy;    /* do not perform lazy search above this match length */
-   ush nice_length; /* quit search above this match length */
-   ush max_chain;
-   compress_func func;
-} config;
-
-local config configuration_table[10] = {
-/*      good lazy nice chain */
-/* 0 */ {0,    0,  0,    0, deflate_stored},  /* store only */
-/* 1 */ {4,    4,  8,    4, deflate_fast}, /* maximum speed, no lazy matches */
-/* 2 */ {4,    5, 16,    8, deflate_fast},
-/* 3 */ {4,    6, 32,   32, deflate_fast},
-
-/* 4 */ {4,    4, 16,   16, deflate_slow},  /* lazy matches */
-/* 5 */ {8,   16, 32,   32, deflate_slow},
-/* 6 */ {8,   16, 128, 128, deflate_slow},
-/* 7 */ {8,   32, 128, 256, deflate_slow},
-/* 8 */ {32, 128, 258, 1024, deflate_slow},
-/* 9 */ {32, 258, 258, 4096, deflate_slow}}; /* maximum compression */
-
-/* Note: the deflate() code requires max_lazy >= MIN_MATCH and max_chain >= 4
- * For deflate_fast() (levels <= 3) good is ignored and lazy has a different
- * meaning.
- */
-
-#define EQUAL 0
-/* result of memcmp for equal strings */
-
-#ifndef NO_DUMMY_DECL
-struct static_tree_desc_s {int dummy;}; /* for buggy compilers */
-#endif
-
-/* ===========================================================================
- * Update a hash value with the given input byte
- * IN  assertion: all calls to to UPDATE_HASH are made with consecutive
- *    input characters, so that a running hash key can be computed from the
- *    previous key instead of complete recalculation each time.
- */
-#define UPDATE_HASH(s,h,c) (h = (((h)<<s->hash_shift) ^ (c)) & s->hash_mask)
-
-
-/* ===========================================================================
- * Insert string str in the dictionary and set match_head to the previous head
- * of the hash chain (the most recent string with same hash key). Return
- * the previous length of the hash chain.
- * IN  assertion: all calls to to INSERT_STRING are made with consecutive
- *    input characters and the first MIN_MATCH bytes of str are valid
- *    (except for the last MIN_MATCH-1 bytes of the input file).
- */
-#define INSERT_STRING(s, str, match_head) \
-   (UPDATE_HASH(s, s->ins_h, s->window[(str) + (MIN_MATCH-1)]), \
-    s->prev[(str) & s->w_mask] = match_head = s->head[s->ins_h], \
-    s->head[s->ins_h] = (Pos)(str))
-
-/* ===========================================================================
- * Initialize the hash table (avoiding 64K overflow for 16 bit systems).
- * prev[] will be initialized on the fly.
- */
-#define CLEAR_HASH(s) \
-    s->head[s->hash_size-1] = NIL; \
-    zmemzero((charf *)s->head, (unsigned)(s->hash_size-1)*sizeof(*s->head));
-
-/* ========================================================================= */
-int deflateInit_(strm, level, version, stream_size)
-    z_streamp strm;
-    int level;
-    const char *version;
-    int stream_size;
-{
-    return deflateInit2_(strm, level, Z_DEFLATED, MAX_WBITS, DEF_MEM_LEVEL,
-			 Z_DEFAULT_STRATEGY, version, stream_size);
-    /* To do: ignore strm->next_in if we use it as window */
-}
-
-/* ========================================================================= */
-int deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
-		  version, stream_size)
-    z_streamp strm;
-    int  level;
-    int  method;
-    int  windowBits;
-    int  memLevel;
-    int  strategy;
-    const char *version;
-    int stream_size;
-{
-    deflate_state *s;
-    int noheader = 0;
-    static char* my_version = ZLIB_VERSION;
-
-    ushf *overlay;
-    /* We overlay pending_buf and d_buf+l_buf. This works since the average
-     * output size for (length,distance) codes is <= 24 bits.
-     */
-
-    if (version == Z_NULL || version[0] != my_version[0] ||
-        stream_size != sizeof(z_stream)) {
-	return Z_VERSION_ERROR;
-    }
-    if (strm == Z_NULL) return Z_STREAM_ERROR;
-
-    strm->msg = Z_NULL;
-#ifndef NO_ZCFUNCS
-    if (strm->zalloc == Z_NULL) {
-	strm->zalloc = zcalloc;
-	strm->opaque = (voidpf)0;
-    }
-    if (strm->zfree == Z_NULL) strm->zfree = zcfree;
-#endif
-
-    if (level == Z_DEFAULT_COMPRESSION) level = 6;
-
-    if (windowBits < 0) { /* undocumented feature: suppress zlib header */
-        noheader = 1;
-        windowBits = -windowBits;
-    }
-    if (memLevel < 1 || memLevel > MAX_MEM_LEVEL || method != Z_DEFLATED ||
-        windowBits < 8 || windowBits > 15 || level < 0 || level > 9 ||
-	strategy < 0 || strategy > Z_HUFFMAN_ONLY) {
-        return Z_STREAM_ERROR;
-    }
-    s = (deflate_state *) ZALLOC(strm, 1, sizeof(deflate_state));
-    if (s == Z_NULL) return Z_MEM_ERROR;
-    strm->state = (struct internal_state FAR *)s;
-    s->strm = strm;
-
-    s->noheader = noheader;
-    s->w_bits = windowBits;
-    s->w_size = 1 << s->w_bits;
-    s->w_mask = s->w_size - 1;
-
-    s->hash_bits = memLevel + 7;
-    s->hash_size = 1 << s->hash_bits;
-    s->hash_mask = s->hash_size - 1;
-    s->hash_shift =  ((s->hash_bits+MIN_MATCH-1)/MIN_MATCH);
-
-    s->window = (Bytef *) ZALLOC(strm, s->w_size, 2*sizeof(Byte));
-    s->prev   = (Posf *)  ZALLOC(strm, s->w_size, sizeof(Pos));
-    s->head   = (Posf *)  ZALLOC(strm, s->hash_size, sizeof(Pos));
-
-    s->lit_bufsize = 1 << (memLevel + 6); /* 16K elements by default */
-
-    overlay = (ushf *) ZALLOC(strm, s->lit_bufsize, sizeof(ush)+2);
-    s->pending_buf = (uchf *) overlay;
-    s->pending_buf_size = (ulg)s->lit_bufsize * (sizeof(ush)+2L);
-
-    if (s->window == Z_NULL || s->prev == Z_NULL || s->head == Z_NULL ||
-        s->pending_buf == Z_NULL) {
-        strm->msg = (char*)ERR_MSG(Z_MEM_ERROR);
-        deflateEnd (strm);
-        return Z_MEM_ERROR;
-    }
-    s->d_buf = overlay + s->lit_bufsize/sizeof(ush);
-    s->l_buf = s->pending_buf + (1+sizeof(ush))*s->lit_bufsize;
-
-    s->level = level;
-    s->strategy = strategy;
-    s->method = (Byte)method;
-
-    return deflateReset(strm);
-}
-
-/* ========================================================================= */
-int deflateSetDictionary (strm, dictionary, dictLength)
-    z_streamp strm;
-    const Bytef *dictionary;
-    uInt  dictLength;
-{
-    deflate_state *s;
-    uInt length = dictLength;
-    uInt n;
-    IPos hash_head = 0;
-
-    if (strm == Z_NULL || strm->state == Z_NULL || dictionary == Z_NULL)
-	return Z_STREAM_ERROR;
-
-    s = (deflate_state *) strm->state;
-    if (s->status != INIT_STATE) return Z_STREAM_ERROR;
-
-    strm->adler = adler32(strm->adler, dictionary, dictLength);
-
-    if (length < MIN_MATCH) return Z_OK;
-    if (length > MAX_DIST(s)) {
-	length = MAX_DIST(s);
-#ifndef USE_DICT_HEAD
-	dictionary += dictLength - length; /* use the tail of the dictionary */
-#endif
-    }
-    zmemcpy((charf *)s->window, dictionary, length);
-    s->strstart = length;
-    s->block_start = (long)length;
-
-    /* Insert all strings in the hash table (except for the last two bytes).
-     * s->lookahead stays null, so s->ins_h will be recomputed at the next
-     * call of fill_window.
-     */
-    s->ins_h = s->window[0];
-    UPDATE_HASH(s, s->ins_h, s->window[1]);
-    for (n = 0; n <= length - MIN_MATCH; n++) {
-	INSERT_STRING(s, n, hash_head);
-    }
-    if (hash_head) hash_head = 0;  /* to make compiler happy */
-    return Z_OK;
-}
-
-/* ========================================================================= */
-int deflateReset (strm)
-    z_streamp strm;
-{
-    deflate_state *s;
-    
-    if (strm == Z_NULL || strm->state == Z_NULL ||
-        strm->zalloc == Z_NULL || strm->zfree == Z_NULL) return Z_STREAM_ERROR;
-
-    strm->total_in = strm->total_out = 0;
-    strm->msg = Z_NULL; /* use zfree if we ever allocate msg dynamically */
-    strm->data_type = Z_UNKNOWN;
-
-    s = (deflate_state *)strm->state;
-    s->pending = 0;
-    s->pending_out = s->pending_buf;
-
-    if (s->noheader < 0) {
-        s->noheader = 0; /* was set to -1 by deflate(..., Z_FINISH); */
-    }
-    s->status = s->noheader ? BUSY_STATE : INIT_STATE;
-    strm->adler = 1;
-    s->last_flush = Z_NO_FLUSH;
-
-    _tr_init(s);
-    lm_init(s);
-
-    return Z_OK;
-}
-
-/* ========================================================================= */
-int deflateParams(strm, level, strategy)
-    z_streamp strm;
-    int level;
-    int strategy;
-{
-    deflate_state *s;
-    compress_func func;
-    int err = Z_OK;
-
-    if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
-    s = (deflate_state *) strm->state;
-
-    if (level == Z_DEFAULT_COMPRESSION) {
-	level = 6;
-    }
-    if (level < 0 || level > 9 || strategy < 0 || strategy > Z_HUFFMAN_ONLY) {
-	return Z_STREAM_ERROR;
-    }
-    func = configuration_table[s->level].func;
-
-    if (func != configuration_table[level].func && strm->total_in != 0) {
-	/* Flush the last buffer: */
-	err = deflate(strm, Z_PARTIAL_FLUSH);
-    }
-    if (s->level != level) {
-	s->level = level;
-	s->max_lazy_match   = configuration_table[level].max_lazy;
-	s->good_match       = configuration_table[level].good_length;
-	s->nice_match       = configuration_table[level].nice_length;
-	s->max_chain_length = configuration_table[level].max_chain;
-    }
-    s->strategy = strategy;
-    return err;
-}
-
-/* =========================================================================
- * Put a short in the pending buffer. The 16-bit value is put in MSB order.
- * IN assertion: the stream state is correct and there is enough room in
- * pending_buf.
- */
-local void putShortMSB (s, b)
-    deflate_state *s;
-    uInt b;
-{
-    put_byte(s, (Byte)(b >> 8));
-    put_byte(s, (Byte)(b & 0xff));
-}   
-
-/* =========================================================================
- * Flush as much pending output as possible. All deflate() output goes
- * through this function so some applications may wish to modify it
- * to avoid allocating a large strm->next_out buffer and copying into it.
- * (See also read_buf()).
- */
-local void flush_pending(strm)
-    z_streamp strm;
-{
-    deflate_state *s = (deflate_state *) strm->state;
-    unsigned len = s->pending;
-
-    if (len > strm->avail_out) len = strm->avail_out;
-    if (len == 0) return;
-
-    if (strm->next_out != Z_NULL) {
-	zmemcpy(strm->next_out, s->pending_out, len);
-	strm->next_out += len;
-    }
-    s->pending_out += len;
-    strm->total_out += len;
-    strm->avail_out  -= len;
-    s->pending -= len;
-    if (s->pending == 0) {
-        s->pending_out = s->pending_buf;
-    }
-}
-
-/* ========================================================================= */
-int deflate (strm, flush)
-    z_streamp strm;
-    int flush;
-{
-    int old_flush; /* value of flush param for previous deflate call */
-    deflate_state *s;
-
-    if (strm == Z_NULL || strm->state == Z_NULL ||
-	flush > Z_FINISH || flush < 0) {
-        return Z_STREAM_ERROR;
-    }
-    s = (deflate_state *) strm->state;
-
-    if ((strm->next_in == Z_NULL && strm->avail_in != 0) ||
-	(s->status == FINISH_STATE && flush != Z_FINISH)) {
-        ERR_RETURN(strm, Z_STREAM_ERROR);
-    }
-    if (strm->avail_out == 0) ERR_RETURN(strm, Z_BUF_ERROR);
-
-    s->strm = strm; /* just in case */
-    old_flush = s->last_flush;
-    s->last_flush = flush;
-
-    /* Write the zlib header */
-    if (s->status == INIT_STATE) {
-
-        uInt header = (Z_DEFLATED + ((s->w_bits-8)<<4)) << 8;
-        uInt level_flags = (s->level-1) >> 1;
-
-        if (level_flags > 3) level_flags = 3;
-        header |= (level_flags << 6);
-	if (s->strstart != 0) header |= PRESET_DICT;
-        header += 31 - (header % 31);
-
-        s->status = BUSY_STATE;
-        putShortMSB(s, header);
-
-	/* Save the adler32 of the preset dictionary: */
-	if (s->strstart != 0) {
-	    putShortMSB(s, (uInt)(strm->adler >> 16));
-	    putShortMSB(s, (uInt)(strm->adler & 0xffff));
-	}
-	strm->adler = 1L;
-    }
-
-    /* Flush as much pending output as possible */
-    if (s->pending != 0) {
-        flush_pending(strm);
-        if (strm->avail_out == 0) {
-	    /* Since avail_out is 0, deflate will be called again with
-	     * more output space, but possibly with both pending and
-	     * avail_in equal to zero. There won't be anything to do,
-	     * but this is not an error situation so make sure we
-	     * return OK instead of BUF_ERROR at next call of deflate:
-             */
-	    s->last_flush = -1;
-	    return Z_OK;
-	}
-
-    /* Make sure there is something to do and avoid duplicate consecutive
-     * flushes. For repeated and useless calls with Z_FINISH, we keep
-     * returning Z_STREAM_END instead of Z_BUFF_ERROR.
-     */
-    } else if (strm->avail_in == 0 && flush <= old_flush &&
-	       flush != Z_FINISH) {
-        ERR_RETURN(strm, Z_BUF_ERROR);
-    }
-
-    /* User must not provide more input after the first FINISH: */
-    if (s->status == FINISH_STATE && strm->avail_in != 0) {
-        ERR_RETURN(strm, Z_BUF_ERROR);
-    }
-
-    /* Start a new block or continue the current one.
-     */
-    if (strm->avail_in != 0 || s->lookahead != 0 ||
-        (flush != Z_NO_FLUSH && s->status != FINISH_STATE)) {
-        block_state bstate;
-
-	bstate = (*(configuration_table[s->level].func))(s, flush);
-
-        if (bstate == finish_started || bstate == finish_done) {
-            s->status = FINISH_STATE;
-        }
-        if (bstate == need_more || bstate == finish_started) {
-	    if (strm->avail_out == 0) {
-	        s->last_flush = -1; /* avoid BUF_ERROR next call, see above */
-	    }
-	    return Z_OK;
-	    /* If flush != Z_NO_FLUSH && avail_out == 0, the next call
-	     * of deflate should use the same flush parameter to make sure
-	     * that the flush is complete. So we don't have to output an
-	     * empty block here, this will be done at next call. This also
-	     * ensures that for a very small output buffer, we emit at most
-	     * one empty block.
-	     */
-	}
-        if (bstate == block_done) {
-            if (flush == Z_PARTIAL_FLUSH) {
-                _tr_align(s);
-	    } else if (flush == Z_PACKET_FLUSH) {
-		/* Output just the 3-bit `stored' block type value,
-		   but not a zero length. */
-		_tr_stored_type_only(s);
-            } else { /* FULL_FLUSH or SYNC_FLUSH */
-                _tr_stored_block(s, (char*)0, 0L, 0);
-                /* For a full flush, this empty block will be recognized
-                 * as a special marker by inflate_sync().
-                 */
-                if (flush == Z_FULL_FLUSH) {
-                    CLEAR_HASH(s);             /* forget history */
-                }
-            }
-            flush_pending(strm);
-	    if (strm->avail_out == 0) {
-	      s->last_flush = -1; /* avoid BUF_ERROR at next call, see above */
-	      return Z_OK;
-	    }
-        }
-    }
-    Assert(strm->avail_out > 0, "bug2");
-
-    if (flush != Z_FINISH) return Z_OK;
-    if (s->noheader) return Z_STREAM_END;
-
-    /* Write the zlib trailer (adler32) */
-    putShortMSB(s, (uInt)(strm->adler >> 16));
-    putShortMSB(s, (uInt)(strm->adler & 0xffff));
-    flush_pending(strm);
-    /* If avail_out is zero, the application will call deflate again
-     * to flush the rest.
-     */
-    s->noheader = -1; /* write the trailer only once! */
-    return s->pending != 0 ? Z_OK : Z_STREAM_END;
-}
-
-/* ========================================================================= */
-int deflateEnd (strm)
-    z_streamp strm;
-{
-    int status;
-    deflate_state *s;
-
-    if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
-    s = (deflate_state *) strm->state;
-
-    status = s->status;
-    if (status != INIT_STATE && status != BUSY_STATE &&
-	status != FINISH_STATE) {
-      return Z_STREAM_ERROR;
-    }
-
-    /* Deallocate in reverse order of allocations: */
-    TRY_FREE(strm, s->pending_buf);
-    TRY_FREE(strm, s->head);
-    TRY_FREE(strm, s->prev);
-    TRY_FREE(strm, s->window);
-
-    ZFREE(strm, s);
-    strm->state = Z_NULL;
-
-    return status == BUSY_STATE ? Z_DATA_ERROR : Z_OK;
-}
-
-/* =========================================================================
- * Copy the source state to the destination state.
- */
-int deflateCopy (dest, source)
-    z_streamp dest;
-    z_streamp source;
-{
-    deflate_state *ds;
-    deflate_state *ss;
-    ushf *overlay;
-
-    if (source == Z_NULL || dest == Z_NULL || source->state == Z_NULL)
-        return Z_STREAM_ERROR;
-    ss = (deflate_state *) source->state;
-
-    zmemcpy(dest, source, sizeof(*dest));
-
-    ds = (deflate_state *) ZALLOC(dest, 1, sizeof(deflate_state));
-    if (ds == Z_NULL) return Z_MEM_ERROR;
-    dest->state = (struct internal_state FAR *) ds;
-    zmemcpy(ds, ss, sizeof(*ds));
-    ds->strm = dest;
-
-    ds->window = (Bytef *) ZALLOC(dest, ds->w_size, 2*sizeof(Byte));
-    ds->prev   = (Posf *)  ZALLOC(dest, ds->w_size, sizeof(Pos));
-    ds->head   = (Posf *)  ZALLOC(dest, ds->hash_size, sizeof(Pos));
-    overlay = (ushf *) ZALLOC(dest, ds->lit_bufsize, sizeof(ush)+2);
-    ds->pending_buf = (uchf *) overlay;
-
-    if (ds->window == Z_NULL || ds->prev == Z_NULL || ds->head == Z_NULL ||
-        ds->pending_buf == Z_NULL) {
-        deflateEnd (dest);
-        return Z_MEM_ERROR;
-    }
-    /* ??? following zmemcpy doesn't work for 16-bit MSDOS */
-    zmemcpy(ds->window, ss->window, ds->w_size * 2 * sizeof(Byte));
-    zmemcpy(ds->prev, ss->prev, ds->w_size * sizeof(Pos));
-    zmemcpy(ds->head, ss->head, ds->hash_size * sizeof(Pos));
-    zmemcpy(ds->pending_buf, ss->pending_buf, (uInt)ds->pending_buf_size);
-
-    ds->pending_out = ds->pending_buf + (ss->pending_out - ss->pending_buf);
-    ds->d_buf = overlay + ds->lit_bufsize/sizeof(ush);
-    ds->l_buf = ds->pending_buf + (1+sizeof(ush))*ds->lit_bufsize;
-
-    ds->l_desc.dyn_tree = ds->dyn_ltree;
-    ds->d_desc.dyn_tree = ds->dyn_dtree;
-    ds->bl_desc.dyn_tree = ds->bl_tree;
-
-    return Z_OK;
-}
-
-/* ===========================================================================
- * Return the number of bytes of output which are immediately available
- * for output from the decompressor.
- */
-int deflateOutputPending (strm)
-    z_streamp strm;
-{
-    if (strm == Z_NULL || strm->state == Z_NULL) return 0;
-    
-    return ((deflate_state *)(strm->state))->pending;
-}
-
-/* ===========================================================================
- * Read a new buffer from the current input stream, update the adler32
- * and total number of bytes read.  All deflate() input goes through
- * this function so some applications may wish to modify it to avoid
- * allocating a large strm->next_in buffer and copying from it.
- * (See also flush_pending()).
- */
-local int read_buf(strm, buf, size)
-    z_streamp strm;
-    charf *buf;
-    unsigned size;
-{
-    unsigned len = strm->avail_in;
-
-    if (len > size) len = size;
-    if (len == 0) return 0;
-
-    strm->avail_in  -= len;
-
-    if (!((deflate_state *)(strm->state))->noheader) {
-        strm->adler = adler32(strm->adler, strm->next_in, len);
-    }
-    zmemcpy(buf, strm->next_in, len);
-    strm->next_in  += len;
-    strm->total_in += len;
-
-    return (int)len;
-}
-
-/* ===========================================================================
- * Initialize the "longest match" routines for a new zlib stream
- */
-local void lm_init (s)
-    deflate_state *s;
-{
-    s->window_size = (ulg)2L*s->w_size;
-
-    CLEAR_HASH(s);
-
-    /* Set the default configuration parameters:
-     */
-    s->max_lazy_match   = configuration_table[s->level].max_lazy;
-    s->good_match       = configuration_table[s->level].good_length;
-    s->nice_match       = configuration_table[s->level].nice_length;
-    s->max_chain_length = configuration_table[s->level].max_chain;
-
-    s->strstart = 0;
-    s->block_start = 0L;
-    s->lookahead = 0;
-    s->match_length = s->prev_length = MIN_MATCH-1;
-    s->match_available = 0;
-    s->ins_h = 0;
-#ifdef ASMV
-    match_init(); /* initialize the asm code */
-#endif
-}
-
-/* ===========================================================================
- * Set match_start to the longest match starting at the given string and
- * return its length. Matches shorter or equal to prev_length are discarded,
- * in which case the result is equal to prev_length and match_start is
- * garbage.
- * IN assertions: cur_match is the head of the hash chain for the current
- *   string (strstart) and its distance is <= MAX_DIST, and prev_length >= 1
- * OUT assertion: the match length is not greater than s->lookahead.
- */
-#ifndef ASMV
-/* For 80x86 and 680x0, an optimized version will be provided in match.asm or
- * match.S. The code will be functionally equivalent.
- */
-local uInt longest_match(s, cur_match)
-    deflate_state *s;
-    IPos cur_match;                             /* current match */
-{
-    unsigned chain_length = s->max_chain_length;/* max hash chain length */
-    register Bytef *scan = s->window + s->strstart; /* current string */
-    register Bytef *match;                       /* matched string */
-    register int len;                           /* length of current match */
-    int best_len = s->prev_length;              /* best match length so far */
-    int nice_match = s->nice_match;             /* stop if match long enough */
-    IPos limit = s->strstart > (IPos)MAX_DIST(s) ?
-        s->strstart - (IPos)MAX_DIST(s) : NIL;
-    /* Stop when cur_match becomes <= limit. To simplify the code,
-     * we prevent matches with the string of window index 0.
-     */
-    Posf *prev = s->prev;
-    uInt wmask = s->w_mask;
-
-#ifdef UNALIGNED_OK
-    /* Compare two bytes at a time. Note: this is not always beneficial.
-     * Try with and without -DUNALIGNED_OK to check.
-     */
-    register Bytef *strend = s->window + s->strstart + MAX_MATCH - 1;
-    register ush scan_start = *(ushf*)scan;
-    register ush scan_end   = *(ushf*)(scan+best_len-1);
-#else
-    register Bytef *strend = s->window + s->strstart + MAX_MATCH;
-    register Byte scan_end1  = scan[best_len-1];
-    register Byte scan_end   = scan[best_len];
-#endif
-
-    /* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16.
-     * It is easy to get rid of this optimization if necessary.
-     */
-    Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever");
-
-    /* Do not waste too much time if we already have a good match: */
-    if (s->prev_length >= s->good_match) {
-        chain_length >>= 2;
-    }
-    /* Do not look for matches beyond the end of the input. This is necessary
-     * to make deflate deterministic.
-     */
-    if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead;
-
-    Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead");
-
-    do {
-        Assert(cur_match < s->strstart, "no future");
-        match = s->window + cur_match;
-
-        /* Skip to next match if the match length cannot increase
-         * or if the match length is less than 2:
-         */
-#if (defined(UNALIGNED_OK) && MAX_MATCH == 258)
-        /* This code assumes sizeof(unsigned short) == 2. Do not use
-         * UNALIGNED_OK if your compiler uses a different size.
-         */
-        if (*(ushf*)(match+best_len-1) != scan_end ||
-            *(ushf*)match != scan_start) continue;
-
-        /* It is not necessary to compare scan[2] and match[2] since they are
-         * always equal when the other bytes match, given that the hash keys
-         * are equal and that HASH_BITS >= 8. Compare 2 bytes at a time at
-         * strstart+3, +5, ... up to strstart+257. We check for insufficient
-         * lookahead only every 4th comparison; the 128th check will be made
-         * at strstart+257. If MAX_MATCH-2 is not a multiple of 8, it is
-         * necessary to put more guard bytes at the end of the window, or
-         * to check more often for insufficient lookahead.
-         */
-        Assert(scan[2] == match[2], "scan[2]?");
-        scan++, match++;
-        do {
-        } while (*(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
-                 *(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
-                 *(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
-                 *(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
-                 scan < strend);
-        /* The funny "do {}" generates better code on most compilers */
-
-        /* Here, scan <= window+strstart+257 */
-        Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan");
-        if (*scan == *match) scan++;
-
-        len = (MAX_MATCH - 1) - (int)(strend-scan);
-        scan = strend - (MAX_MATCH-1);
-
-#else /* UNALIGNED_OK */
-
-        if (match[best_len]   != scan_end  ||
-            match[best_len-1] != scan_end1 ||
-            *match            != *scan     ||
-            *++match          != scan[1])      continue;
-
-        /* The check at best_len-1 can be removed because it will be made
-         * again later. (This heuristic is not always a win.)
-         * It is not necessary to compare scan[2] and match[2] since they
-         * are always equal when the other bytes match, given that
-         * the hash keys are equal and that HASH_BITS >= 8.
-         */
-        scan += 2, match++;
-        Assert(*scan == *match, "match[2]?");
-
-        /* We check for insufficient lookahead only every 8th comparison;
-         * the 256th check will be made at strstart+258.
-         */
-        do {
-        } while (*++scan == *++match && *++scan == *++match &&
-                 *++scan == *++match && *++scan == *++match &&
-                 *++scan == *++match && *++scan == *++match &&
-                 *++scan == *++match && *++scan == *++match &&
-                 scan < strend);
-
-        Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan");
-
-        len = MAX_MATCH - (int)(strend - scan);
-        scan = strend - MAX_MATCH;
-
-#endif /* UNALIGNED_OK */
-
-        if (len > best_len) {
-            s->match_start = cur_match;
-            best_len = len;
-            if (len >= nice_match) break;
-#ifdef UNALIGNED_OK
-            scan_end = *(ushf*)(scan+best_len-1);
-#else
-            scan_end1  = scan[best_len-1];
-            scan_end   = scan[best_len];
-#endif
-        }
-    } while ((cur_match = prev[cur_match & wmask]) > limit
-             && --chain_length != 0);
-
-    if ((uInt)best_len <= s->lookahead) return best_len;
-    return s->lookahead;
-}
-#endif /* ASMV */
-
-#ifdef DEBUG_ZLIB
-/* ===========================================================================
- * Check that the match at match_start is indeed a match.
- */
-local void check_match(s, start, match, length)
-    deflate_state *s;
-    IPos start, match;
-    int length;
-{
-    /* check that the match is indeed a match */
-    if (zmemcmp((charf *)s->window + match,
-                (charf *)s->window + start, length) != EQUAL) {
-        fprintf(stderr, " start %u, match %u, length %d\n",
-		start, match, length);
-        do {
-	    fprintf(stderr, "%c%c", s->window[match++], s->window[start++]);
-	} while (--length != 0);
-        z_error("invalid match");
-    }
-    if (z_verbose > 1) {
-        fprintf(stderr,"\\[%d,%d]", start-match, length);
-        do { putc(s->window[start++], stderr); } while (--length != 0);
-    }
-}
-#else
-#  define check_match(s, start, match, length)
-#endif
-
-/* ===========================================================================
- * Fill the window when the lookahead becomes insufficient.
- * Updates strstart and lookahead.
- *
- * IN assertion: lookahead < MIN_LOOKAHEAD
- * OUT assertions: strstart <= window_size-MIN_LOOKAHEAD
- *    At least one byte has been read, or avail_in == 0; reads are
- *    performed for at least two bytes (required for the zip translate_eol
- *    option -- not supported here).
- */
-local void fill_window(s)
-    deflate_state *s;
-{
-    register unsigned n, m;
-    register Posf *p;
-    unsigned more;    /* Amount of free space at the end of the window. */
-    uInt wsize = s->w_size;
-
-    do {
-        more = (unsigned)(s->window_size -(ulg)s->lookahead -(ulg)s->strstart);
-
-        /* Deal with !@#$% 64K limit: */
-        if (more == 0 && s->strstart == 0 && s->lookahead == 0) {
-            more = wsize;
-
-        } else if (more == (unsigned)(-1)) {
-            /* Very unlikely, but possible on 16 bit machine if strstart == 0
-             * and lookahead == 1 (input done one byte at time)
-             */
-            more--;
-
-        /* If the window is almost full and there is insufficient lookahead,
-         * move the upper half to the lower one to make room in the upper half.
-         */
-        } else if (s->strstart >= wsize+MAX_DIST(s)) {
-
-            zmemcpy((charf *)s->window, (charf *)s->window+wsize,
-                   (unsigned)wsize);
-            s->match_start -= wsize;
-            s->strstart    -= wsize; /* we now have strstart >= MAX_DIST */
-            s->block_start -= (long) wsize;
-
-            /* Slide the hash table (could be avoided with 32 bit values
-               at the expense of memory usage). We slide even when level == 0
-               to keep the hash table consistent if we switch back to level > 0
-               later. (Using level 0 permanently is not an optimal usage of
-               zlib, so we don't care about this pathological case.)
-             */
-            n = s->hash_size;
-            p = &s->head[n];
-            do {
-                m = *--p;
-                *p = (Pos)(m >= wsize ? m-wsize : NIL);
-            } while (--n);
-
-            n = wsize;
-            p = &s->prev[n];
-            do {
-                m = *--p;
-                *p = (Pos)(m >= wsize ? m-wsize : NIL);
-                /* If n is not on any hash chain, prev[n] is garbage but
-                 * its value will never be used.
-                 */
-            } while (--n);
-            more += wsize;
-        }
-        if (s->strm->avail_in == 0) return;
-
-        /* If there was no sliding:
-         *    strstart <= WSIZE+MAX_DIST-1 && lookahead <= MIN_LOOKAHEAD - 1 &&
-         *    more == window_size - lookahead - strstart
-         * => more >= window_size - (MIN_LOOKAHEAD-1 + WSIZE + MAX_DIST-1)
-         * => more >= window_size - 2*WSIZE + 2
-         * In the BIG_MEM or MMAP case (not yet supported),
-         *   window_size == input_size + MIN_LOOKAHEAD  &&
-         *   strstart + s->lookahead <= input_size => more >= MIN_LOOKAHEAD.
-         * Otherwise, window_size == 2*WSIZE so more >= 2.
-         * If there was sliding, more >= WSIZE. So in all cases, more >= 2.
-         */
-        Assert(more >= 2, "more < 2");
-
-        n = read_buf(s->strm, (charf *)s->window + s->strstart + s->lookahead,
-                     more);
-        s->lookahead += n;
-
-        /* Initialize the hash value now that we have some input: */
-        if (s->lookahead >= MIN_MATCH) {
-            s->ins_h = s->window[s->strstart];
-            UPDATE_HASH(s, s->ins_h, s->window[s->strstart+1]);
-#if MIN_MATCH != 3
-            Call UPDATE_HASH() MIN_MATCH-3 more times
-#endif
-        }
-        /* If the whole input has less than MIN_MATCH bytes, ins_h is garbage,
-         * but this is not important since only literal bytes will be emitted.
-         */
-
-    } while (s->lookahead < MIN_LOOKAHEAD && s->strm->avail_in != 0);
-}
-
-/* ===========================================================================
- * Flush the current block, with given end-of-file flag.
- * IN assertion: strstart is set to the end of the current match.
- */
-#define FLUSH_BLOCK_ONLY(s, eof) { \
-   _tr_flush_block(s, (s->block_start >= 0L ? \
-                   (charf *)&s->window[(unsigned)s->block_start] : \
-                   (charf *)Z_NULL), \
-		(ulg)((long)s->strstart - s->block_start), \
-		(eof)); \
-   s->block_start = s->strstart; \
-   flush_pending(s->strm); \
-   Tracev((stderr,"[FLUSH]")); \
-}
-
-/* Same but force premature exit if necessary. */
-#define FLUSH_BLOCK(s, eof) { \
-   FLUSH_BLOCK_ONLY(s, eof); \
-   if (s->strm->avail_out == 0) return (eof) ? finish_started : need_more; \
-}
-
-/* ===========================================================================
- * Copy without compression as much as possible from the input stream, return
- * the current block state.
- * This function does not insert new strings in the dictionary since
- * uncompressible data is probably not useful. This function is used
- * only for the level=0 compression option.
- * NOTE: this function should be optimized to avoid extra copying from
- * window to pending_buf.
- */
-local block_state deflate_stored(s, flush)
-    deflate_state *s;
-    int flush;
-{
-    /* Stored blocks are limited to 0xffff bytes, pending_buf is limited
-     * to pending_buf_size, and each stored block has a 5 byte header:
-     */
-    ulg max_block_size = 0xffff;
-    ulg max_start;
-
-    if (max_block_size > s->pending_buf_size - 5) {
-        max_block_size = s->pending_buf_size - 5;
-    }
-
-    /* Copy as much as possible from input to output: */
-    for (;;) {
-        /* Fill the window as much as possible: */
-        if (s->lookahead <= 1) {
-
-            Assert(s->strstart < s->w_size+MAX_DIST(s) ||
-		   s->block_start >= (long)s->w_size, "slide too late");
-
-            fill_window(s);
-            if (s->lookahead == 0 && flush == Z_NO_FLUSH) return need_more;
-
-            if (s->lookahead == 0) break; /* flush the current block */
-        }
-	Assert(s->block_start >= 0L, "block gone");
-
-	s->strstart += s->lookahead;
-	s->lookahead = 0;
-
-	/* Emit a stored block if pending_buf will be full: */
- 	max_start = s->block_start + max_block_size;
-        if (s->strstart == 0 || (ulg)s->strstart >= max_start) {
-	    /* strstart == 0 is possible when wraparound on 16-bit machine */
-	    s->lookahead = (uInt)(s->strstart - max_start);
-	    s->strstart = (uInt)max_start;
-            FLUSH_BLOCK(s, 0);
-	}
-	/* Flush if we may have to slide, otherwise block_start may become
-         * negative and the data will be gone:
-         */
-        if (s->strstart - (uInt)s->block_start >= MAX_DIST(s)) {
-            FLUSH_BLOCK(s, 0);
-	}
-    }
-    FLUSH_BLOCK(s, flush == Z_FINISH);
-    return flush == Z_FINISH ? finish_done : block_done;
-}
-
-/* ===========================================================================
- * Compress as much as possible from the input stream, return the current
- * block state.
- * This function does not perform lazy evaluation of matches and inserts
- * new strings in the dictionary only for unmatched strings or for short
- * matches. It is used only for the fast compression options.
- */
-local block_state deflate_fast(s, flush)
-    deflate_state *s;
-    int flush;
-{
-    IPos hash_head = NIL; /* head of the hash chain */
-    int bflush;           /* set if current block must be flushed */
-
-    for (;;) {
-        /* Make sure that we always have enough lookahead, except
-         * at the end of the input file. We need MAX_MATCH bytes
-         * for the next match, plus MIN_MATCH bytes to insert the
-         * string following the next match.
-         */
-        if (s->lookahead < MIN_LOOKAHEAD) {
-            fill_window(s);
-            if (s->lookahead < MIN_LOOKAHEAD && flush == Z_NO_FLUSH) {
-	        return need_more;
-	    }
-            if (s->lookahead == 0) break; /* flush the current block */
-        }
-
-        /* Insert the string window[strstart .. strstart+2] in the
-         * dictionary, and set hash_head to the head of the hash chain:
-         */
-        if (s->lookahead >= MIN_MATCH) {
-            INSERT_STRING(s, s->strstart, hash_head);
-        }
-
-        /* Find the longest match, discarding those <= prev_length.
-         * At this point we have always match_length < MIN_MATCH
-         */
-        if (hash_head != NIL && s->strstart - hash_head <= MAX_DIST(s)) {
-            /* To simplify the code, we prevent matches with the string
-             * of window index 0 (in particular we have to avoid a match
-             * of the string with itself at the start of the input file).
-             */
-            if (s->strategy != Z_HUFFMAN_ONLY) {
-                s->match_length = longest_match (s, hash_head);
-            }
-            /* longest_match() sets match_start */
-        }
-        if (s->match_length >= MIN_MATCH) {
-            check_match(s, s->strstart, s->match_start, s->match_length);
-
-            bflush = _tr_tally(s, s->strstart - s->match_start,
-                               s->match_length - MIN_MATCH);
-
-            s->lookahead -= s->match_length;
-
-            /* Insert new strings in the hash table only if the match length
-             * is not too large. This saves time but degrades compression.
-             */
-            if (s->match_length <= s->max_insert_length &&
-                s->lookahead >= MIN_MATCH) {
-                s->match_length--; /* string at strstart already in hash table */
-                do {
-                    s->strstart++;
-                    INSERT_STRING(s, s->strstart, hash_head);
-                    /* strstart never exceeds WSIZE-MAX_MATCH, so there are
-                     * always MIN_MATCH bytes ahead.
-                     */
-                } while (--s->match_length != 0);
-                s->strstart++; 
-            } else {
-                s->strstart += s->match_length;
-                s->match_length = 0;
-                s->ins_h = s->window[s->strstart];
-                UPDATE_HASH(s, s->ins_h, s->window[s->strstart+1]);
-#if MIN_MATCH != 3
-                Call UPDATE_HASH() MIN_MATCH-3 more times
-#endif
-                /* If lookahead <