As of C-Kermit version:
8.0.211, 10 April 2004
This file last updated:
Sat Apr 10 16:39:25 2004
(New York City time)
IF YOU ARE READING A PLAIN-TEXT version of this document, note that this file is a plain-text dump of a Web page. You can visit the original (and possibly more up-to-date) Web page here:
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1. QUICKSTART GUIDE
2. BOOTSTRAPPING
3. CONFIGURING VMS FOR BEST RESULTS WITH KERMIT
3.1. TERMINAL BUFFER SIZE
3.2. USER QUOTAS AND PRIVILEGES
3.3. CONFIGURING SERIAL COMMUNICATION PORTS
3.4. CONFIGURING LAT DEVICES
3.5. THE VIRTUAL TERMINAL DRIVER
3.6. CAPTIVE ACCOUNTS AND RESTRICTED ACCESS
4. DECODING VMS C-KERMIT HEX FILES
5. INSTALLING VMS C-KERMIT
6. USING MODEMS
7. BUILDING VMS C-KERMIT FROM THE SOURCE CODE
7.1. PROGRAMMING TIPS
7.2. VMS TCP/IP NETWORKING SUPPORT FOR C-KERMIT
8. CASE STUDY: ALPHA SETUP AND TEST RESULTS
9. MAKING AND USING VMSINSTAL KITS)
If you are running a version of VMS *prior* to 5.0, or need to customize the C-Kermit sources, please refer to Section 5.
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In case none of those methods are available to you, here is a method to "bootstrap" C-Kermit onto a VAX system from another computer. It uses the older and smaller "Kermit-32" program (which runs only on VAXes, not Alphas) to load the newer and larger C-Kermit program.
Suppose, for example, you have a PC with DOS, Windows, or some form of UNIX such as Linux, which has FTP capability, and the PC is connected to your VAX through its serial port (directly, with a null modem cable, or else through a modem), and the PC already has its own Kermit program installed (MS-DOS Kermit, Kermit 95, or C-Kermit, depending on the OS). Here are specific instructions you can try; this example assumes the PC has Linux and C-Kermit:
ftp://kermit.columbia.edu/kermit/b
Also get the appropriate version of VMS C-Kermit on your PC from the C-Kermit website:
http://www.columbia.edu/kermit/ckermit.html
set line /dev/ttyS0 ; or whatever set speed 19200 set flow xon/xoff set transmit eof \26 connect
set terminal /ttsync /hostsync
create vmsmit.hex
transmit vmsmit.hex
macro vmsdeh link vmsdeh run vmsdeh
run vmsmit
at the VMS prompt.
WARNING: You can't use Kermit-32 ("Bliss Kermit") to receive a VMS binary program. If you have to use Kermit-32 to get C-Kermit onto your VAX, you'll need to transfer a hex-encoded version of the binary, rather than the straight binary, and then "dehexify" the result as shown above. This is because Kermit-32 stores incoming binary files in a format that is not appropriate for VMS executables (variable 510 instead of fixed 512).
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The main parameter that affects Kermit is the terminal type-ahead buffer size, which applies to serial terminal devices (with the TT or TX prefix). There are two possible values in VMS - the "normal" size and the "alternate" size. The defaults for these are 78 and 200 bytes, respectively. If more data arrives at the terminal driver than these buffers can hold (which is a likely occurrence during file transfer), it will be discarded and file transfers will be slowed down or terminated by errors.
This is most frequently seen when receiving files on a slow VAX, particularly when using long packets and/or sliding windows. File reception requires larger system buffers (to hold arriving packets), and the speed of the VAX controls how quickly Kermit can empty them.
The recommended minimum size for each of these buffers is the number shown as "Buffer size" by the C-Kermit SHOW PROTOCOL command, which is the total amount of memory allocated by C-Kermit for packet buffers (window slots times packet length). VMS C-Kermit is shipped with a buffer size of 9065, which can be altered by the user with a SET BUFFERS command.
To change the values of the VMS typeahead buffer sizes, you should edit the file SYS$SYSTEM:MODPARAMS.DAT. Determine the new values you want to use and add lines like the following to the end of the MODPARAMS.DAT file:
MIN_TTY_TYPAHDSZ = new_value_for_regular ! For VMS C-Kermit MIN_TTY_ALTYPAHD = new_value_for_alternate ! For VMS C-Kermit
for example:
MIN_TTY_TYPAHDSZ = 2064 MIN_TTY_ALTYPAHD = 2064
The TTY_ALTYPAHD size should be at least as great as the TTY_TYPAHDSZ. Digital recommends a value of 2064 or greater for TTY_ALTYPAHD if you are running VMS V5.5 or higher, or if you are running the optional LATmaster code under VMS V5.4-1, -2, or -3.
You should also examine this file to be sure there aren't any other definitions for TTY_TYPAHDSZ or TTY_ALTYPAHD. If there are, you'll get warning messages in the next step.
You may wish to simply set TTY_TYPAHDSZ=TTY_ALTYPAHD=2064, since most common VMS "TTY ports" these days are actually LAT or TCP/IP devices, which cannot easily be configured to use the alternate buffer. Also, it takes a privileged user or program to set a port to use the alternate buffer, and since we do not recommend installing Kermit with privileges, this would restrict Kermit access to privileged users.Let's consider a medium-sized VAX with perhaps 64 "ports" (either serial ports or LAT or TCP/IP network ports). This system probably has at least 16 megabytes of memory. Configuring TTY_TYPAHDSZ to 2064 will take up 64 * 2064 bytes of memory, or 132096 bytes. This is less than 1 per cent of available memory. Most systems would have more than 16Mb of memory for 64 simultaneous users, lowering the percentage even further.
In some cases, it might also be necessary to increase your system's MAXBUF parameter. It should be somewhat longer than the longest packet you want Kermit to be able to send or receive, to allow for SYS$QIO overhead (the bigger the value, the more overhead). DEC currently recommends 2300, which should be sufficient for 2K (2048-byte) packets. If you want to use C-Kermit's maximum packet length, 9024, then your MAXBUF should be set to about 12000. Do this in the SYS$SYSTEM:MODPARAMS.DAT file:
MIN_MAXBUF=xxxx
You should also ensure that PQL_MBYTLM is at least MAXBUF + 2300; otherwise, at least on early 5.x VMS releases (reportedly), the system can crash.
To have these changes take effect, run the "AUTOGEN" procedure:
@SYS$UPDATE:AUTOGEN GETDATA SETPARAMS
or:
@SYS$UPDATE:AUTOGEN SAVPARAMS SETPARAMS
or:
@SYS$UPDATE:AUTOGEN SAVPARAMS GENPARAMS FEEDBACK DIFFERENCE/OUTPUT=DIFF.DAT/PARALLEL SETPARAMS.DAT EDIT/TPU DIFF.DAT ! Check out what Autogen is going to do to me. @SYS$UPDATE:AUTOGEN SETPARAMS REBOOT
(Read about AUTOGEN in the VMS Guide to System Management)
This incorporates the new buffer sizes into the system configuration, and they will take effect the next time the system is reloaded.
To examine your system parameters:
run sys$system:sysgen SYSGEN> use current SYSGEN> show maxbuf (should be at least 2064) SYSGEN> show virtualpagecnt (should be at least 50000) SYSGEN> show /tty (TTY_ALTYPAHD should be at least 2064)
In an emergency, or for testing purposes, you can also change your MIN_MAXBUF value "on the fly":
$ run sys$system:sysgen SYSGEN> set maxbuf 2300 SYSGEN> write active SYSGEN> exit
This operation should be used with caution, and should probably NOT be used with values greater than about 3000. The AUTOGEN procedure is safer because it understands the relationships among the major parameters.
NOTE: Although it is still recommended that you make your MAXBUF setting large enough for Kermit packets, it is (as of C-Kermit edit 190) no longer strictly necessary. C-Kermit's packet writer now recovers from MAXBUF and quota-exceeded errors automatically by backing off and retransmitting the packet in appropriate-size chunks (size determined by trial and error). But this involves a small amount of additional overhead, so it's still best to have adequate MAXBUF and quotas.
In modern versions of VMS, the default BYTLM quota is 8192, which should normally be adequate. If C-Kermit users experience error messages informing them that a quota was exceeded during terminal emulation or file transfer, the system manager should increase the user's BYTLM and/or process page quota. To find out the user's quotas, the system manager should:
set default sys$system run authorize UAF> show <username>
Then look for the relevant quotas and adjust them as required. The BYTLM quota should be somewhat greater than the product of Kermit's window size and packet size, for example, 8192 for 4 window slots and 2000-byte-packets. PGFLQUO should be 20,000 or higher.
If users will be using C-Kermit's PUSH command or issuing REMOTE commands (such as REMOTE DIR) to the VMS C-Kermit server, the user will need to have the ability to create subprocesses (AUTHORIZE parameter PRCLM). If Kermit will itself be invoked as a subprocess (for example, from within a menu system) this should be considered as well. Kermit uses local mailboxes for remote command execution, so users will also need the TMPMBX privilege if these commands are to be used.
$ SET TERMINAL ddcu:/PERMANENT/ALTYPEAHD/DMA
in the system-wide startup command file, where ddcu: is the name of the device, for each such device. If DMA is not enabled, Kermit will run more slowly and use a lot more CPU time. (Note: DMA is only available on certain types of devices; e.g. TX but not TT or LTA).
If the device is connected to a modem, and is to be used for dialing out, also include the /MODEM qualifier:
$ SET TERMINAL ddcu:/PERMANENT/ALTYPEAHD/DMA/MODEM
The modem must also be configured to make DSR follow CD. In modems that use the Hayes AT command set, the command is AT&S1. If you can't configure your modem this way, then VMS will hang up on it during the dialing process, preventing you from completing calls (C-Kermit's DIAL command will make this setting in the modem for you on a per-call basis, but only if this information is in its internal modems database; tell C-Kermit to SET MODEM TYPE xxx and then SHOW MODEM to find out). A less desirable workaround is to configure the modem to ignore DTR (AT&D0), but this can block normal hangup methods even when you want to use them, thus opening security loopholes. A third possibility is to jumper the CD and DSR wires in your modem cable.
If the VMS port is not connected to a modem or other data communications device that follows the RS-232 (V.24) signaling conventions, or if the VMS port does not have a full complement of RS-232 wires (which are lacking in modular MMJ ports, for example), you might have to set the /NOMODEM qualifier instead:
$ SET TERMINAL ddcu:/PERMANENT/ALTYPEAHD/DMA/NOMODEM
Even with these settings you might experience what UNIX users know fondly as "getty babble", which occurs when logins are enabled on the device. This occurs with Kermit, SET HOST/DTE, or any other method of communication; for example, AT<CR> is sent to the modem, the modem echoes AT<CRLF> and then says OK<CRLF>. VMS thinks a user named AT is trying to log in with a password of OK, and says "User authorization failure", but the modem echoes this too, and so on, back and forth, many times, maybe forever. Reportedly, this can be prevented by giving the SECURE attribute to the port in question, e.g.:
$ SET TERMINAL ddcu:/PERMANENT/SECURE
which disables logins on the port until a BREAK signal is received.
Additionally, for non-privileged users to access a terminal device, they need to be granted access to it. The default for terminals is access only by users with SYSTEM privileges (UIC group less than or equal to MAXSYSGROUP, or with SYSPRV privilege). See the VMS documentation for the SET PROTECTION command for more information. Note that if you grant everyone access to the port, anyone can make phone calls via the modem, so you might want to limit this to particular users, possibly by using a device ACL (VMS V5.0 and later only).
Local> set privilege Local> define server name latbox Local> initialize delay 0
We'll be using the server name "latbox" in the examples. Now set up port minimally for a test:
Local> define port 2 autobaud disable Local> define port 2 speed 19200 Local> define port 2 signal check disable Local> logout port 2
Then:
SET PORT COM1 (or whatever) SET SPEED 19200 SET FLOW NONE SET CARRIER OFF CONNECT
OK, so it works in local mode. If not, check your cabling. Now to set it up for remote mode, i.e. to allow VMS to make a connection to the PC through the DECserver port:
Local> change port 2 access remote Local> show port 2
Take note of the port's name; by default it is PORT_2, but you can change it to anything you like with:
Local> change port 2 name blah
We'll stick with PORT_2 in this discussion.
With Kermit on the PC is still in CONNECT mode, do:
Local> test port 2
This should put a test pattern on PC screen.
Now to set up the port for use from VMS. First enable SYSPRV, CMKRNL, LOG_IO, and SYSNAM privileges, then:
$ run sys$system:latcp LATCP> create port lta600: LATCP> set port lta600: /application /node=latbox /port=port_2 /noqueue LATCP> exit
The /NODE switch gives the nodename of the DECserver; the /PORT switch gives the port *name* (not number) of the port on the DECserver. The /NOQUEUE switch is important; otherwise if somebody does "set port lta600" when it is in use, they will sit there and wait until it becomes free.
Then in VMS:
$ set terminal LTA600: /permanent /fullduplex /altypeahd /speed=19200
This sets the typeahead buffer and makes the speeds match. You can use LATCP again to verify the setup:
$ run sys$system:latcp LATCP> show port lta600:
Target Port Name: PORT_2 Actual Port Name: Target Node Name: LATBOX Actual Node Name: Target Service Name: Actual Service Name:
(Use "show port" without any port number to look at all defined LAT ports.)
That's it. Now start kermit and assign the port:
$ kermit C-Kermit> set line lta600: C-Kermit> show communications
This should display the name and speed of the LAT device, as configured above. Then to make the connection:
C-Kermit> connect
Type some characters to VMS C-Kermit -- you should see them come out on the PC's screen. Type some characters on the PC keyboard and they should come out on VMS C-Kermit's screen.
On the PC, escape back to the Kermit prompt and type "show comm" or "show modem" to see what modem signals are being presented by the connection. DECservers that have 25-pin serial connectors, such as the 200 and the 700-8, can do full modem control, but those with mini connectors, such as the 700-16, make you choose between limited sets of modem signals; the DECserver can be configured for either hardware flow control (recommended for high-speed connections) or DTR/CD (allowing each end of the connection to tell when the other end has hung up), but you can't have both. On the DECserver, use:
Local> define port 2 signal select xxx
where xxx is CTS-DSR-RTS-DTR or RI-DCD-DSR-DTR, to select the desired complement of modem signals; the first one for hardware flow control, the second one for ring/hangup control.
Local> define port 2 signal control enable Local> logo port 2
On the PC, use "show comm" to make sure the PC sees the CTS signal. If so, tell Kermit to:
set flow rts/cts
Then put the PC Kermit in server mode and, using VMS C-Kermit as client, transfer some files. Experiment with window size, packet length, and unprefixing to achieve the highest transfer rate. Then experiment with higher serial speeds -- this will require a LATCP command on VMS, "change port" and "logout port" commands on the DECserver, and a "set speed" command in PC Kermit.
Connect port 3 (in this case with BN25G-04 cable with an H8585-AC adapter) to the modem. Then at the DECserver:
Local> set privilege Local> define port 3 autobaud disable Local> define port 3 speed 38400 Local> define port 3 signal select cts Local> define port 3 signal check enable Local> define port 3 access remote Local> define port 3 name dialout Local> logout port 3 Local> show port 3
Back at VMS:
$ run sys$system:latcp LATCP> create port lta601: LATCP> set port lta601: /application /node=latbox /port=dialout /noqueue LATCP> exit $ set terminal LTA601: /permanent /fullduplex /altypeahd /speed=38400
Now start C-Kermit and assign the port:
$ kermit C-Kermit> set modem type usr C-Kermit> set line lta601: C-Kermit> show comm ; Speed should be 38400 C-Kermit> set dial display on ; To verify modem dialog C-Kermit> dial 7654321
And off you go.
For other configurations, refer to your DECserver and LATCP documentation. You can set up port "hunt groups", you can assign logical names to the VMS ports, which can refer to single LAT ports or entire hunt groups, and so on. You can even define "bidirectional" ports for both calling in and calling out, but these are difficult to troubleshoot when there are problems.
CHANGE TELNET LISTENER 2001 PORT 1 ENABLE
This associates TCP socket 2001 with serial port 1 on the DECserver. Then you can use Kermit to Telnet to port 2001 on the DECserver and dial the modem that is on the DECserver's serial port 1.
If you cannot get reverse LAT working, but LAT is working, it is still possible to use Kermit via LAT so long as your system (and Kermit) support TCP. Start Kermit, tell it to "set host localhost" (the TCP loopback name). In connect mode you can log back on to the same system (see the cautions in Using C-Kermit about "C-Kermit in the Middle").
Then you can use SET HOST/LAT from the CONNECT session to dial out, login to the remote system and start the remote Kermit. Now go back to the original Kermit session to transfer the files. You should try it first with SET PREFIXING ALL in C-Kermit, and probably also SET PARITY SPACE, and relatively short packets. If that works, you can try settings that give higher performance at your own risk.
You have the following disconnected process:
Terminal Process name Image name
VTA456: ABCDEF (none)
Connect to above listed process [YES]: Y
Connecting to terminal _VTA456:
ABCDEF>
There is a timeout of something like an hour, after which the disconnected session is deleted entirely.
[If on re-dialing the host you find you are reconnected to the original session without needing to login, then that host has a security problem, as well as a misconfigured DECserver and/or modem or lead...]
The virtual terminal driver is loaded at startup (or later) using SYSGEN or SYSMAN as appropriate. The definition for TTY_DEFCHAR2 in MODPARAMS.DAT also needs to be changed to set the appropriate bit to enable the disconnect processing by default on all terminals. [This change needs a reboot.]
Something like the following should work (check the VMS manuals):
Further, you should be aware that preventing users from getting to DCL only provides an illusion of security. There are many ways of getting to DCL which are non-obvious. For cases where absolute security is required, you should in- vestigate the AUTHORIZE flags CAPTIVE and DISIMAGE. Consult the VMS Security Manual for more information.
C-Kermit itself can be configured to prevent system access, by compiling it with the NOPUSH option (for this you would have to edit CKVKER.COM file and add a definition for the symbol NOPUSH to the CFLAGS). This disables not only the PUSH command and its synonyms (RUN, @, SPAWN), but also OPEN !READ, OPEN !WRITE, as well as the server's execution of REMOTE HOST commands. See CKCCFG.DOC for further information.
There is also a runtime approach for this: put the (invisible) command NOPUSH someplace where it will always be executed; for example, the system-wide CKERMIT.INI file, or in the "kermit" command definition:
$ KERMIT :== "$SYS$TOOLS:KERMIT ""-C"" ""NOPUSH"""
You can also define the logical name (environment variable) CK_NOPUSH to achieve the same effect.
The NOPUSH command does at runtime exactly what defining the NOPUSH symbol at compile time does.
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VMS C-Kermit hex files are not kept up to date. In fact, we only have a few of them -- nonet versions for old versions of VMS on VAX and Alpha. Once you have it on your VMS system and decode it, you can use it to download a more current and appropriate version.
If you have obtained the executable VMS C-Kermit program encoded in printable "hex" format on magnetic tape or over a network, you can decode it back into a runnable .EXE program image using the CKVDEH.MAR program. This is an assembly-language program for the VAX or Alpha, which you should assemble, link, and run as follows:
$ macro ckvdeh (on the Alpha, substitute "macro/migrate ckvdeh") $ link ckvdeh $ run ckvdeh
CKVDEH prompts you for the input file name and then creates a .EXE file with the same root name. For example, if you enter CKVKER.HEX as the source file, the resulting executable will be CKVKER.EXE. This procedure works on both the VAX and the Alpha -- the same program, CKVDEH.MAR, compiles and runs on both platforms.
The C-Kermit .EXE files were built under VAX/(Open)VMS 5.x and Alpha OpenVMS 1.x (whenever possible; otherwise under 6.1). The VAX versions will not run under pre-5.0 VMS releases. If you have a VMS 4.x system with C compiler, however, you should be able to build C-Kermit using the CKVOLD.COM procedure.
Since VMS C-Kermit can be built with no TCP/IP support or with support for several different TCP/IP packages, and it can be built on both the VAX and Alpha platforms, you should pick the right .HEX file for your environment.
The naming conventions are as follows:
CKVaKER-VMSnn-tttvv.xxx
where:
CKV = "C-Kermit for VMS".
a = architecture: A for Alpha, V for VAX.
KER = Kermit
nn = VMS version, e.g. 55 for VMS 5.5, 70 for VMS 7.0.
ttt = TCP/IP product, if any:
CMU = CMU-OpenVMS/IP ("CMU/Tek")
UCX = Compaq (DEC) TCP/IP(*)
PST = Process Software TCPware
TGV = Process Software (Cisco (TGV)) MultiNet(*)
WIN = Attachmate (Wollongong) WIN/TCP (PathWay)(*)
vv = The version number of the TCP/IP product (may be 2 or more characters)
xxx = HEX (text-encoded binary) or EXE (true binary)
When there is no TCP/IP support built in, tttvv is "NONET".
Examples:
CKVVKER-VMS55-NONET.HEX: VAX, VMS 5.5, no TCP/IP, hex format. CKVAKER-VMS62-TGV40.EXE: Alpha, VMS 6.2, Multinet 4.0, binary format.
Not every combination is necessarily available. In general, an .EXE built under a certain version of VMS will also run under later VMS versions, but the opposite is usually not true. Also, if a version was built under the same VMS version that you have, but with a higher ECO level (OS or library patches), it might not run.
So try to pick one that was built under a VMS version less than or equal to yours, and with the the same TCP/IP product you have having with a version number less than or equal to yours. If that doesn't work, try the next earlier one, etc. If you can't find one for your TCP/IP product, try the lowest-numbered UCX (DEC TCP/IP) version; most third-party TCP/IP products also support UCX applications. In any case, after getting the appropriate executable onto your VMS disk, rename it to KERMIT.EXE, e.g.:
$ RENAME CKVAKER-VMS62-TGV40.EXE KERMIT.EXE
The "labeled file converter" is simple; it comes in a VAX version, CKVVCVT-VMSnn.{HEX,EXE}, and an Alpha version, CKVACVT-VMSnn.{HEX,EXE}. Rename it to CKVCVT.EXE so VAX and Alpha users don't have to use different names for the same program.
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IMPORTANT: DO NOT INSTALL VMS C-KERMIT AS A PRIVILEGED PROGRAM! Instead, install it as a foreign command.
To install C-Kermit, follow this procedure:
$ COPY CKVVKER-VMS55-UCX20.EXE SYS$TOOLS:KERMIT.EXE $ SET PROTECTION=(S:RWED,O:RWED,G:RE,W:RE) SYS$TOOLS:KERMIT.EXE
If Kermit is going to be used a lot, you can have it preloaded and its pure memory segments shared:
$ INSTALL ADD SYS$TOOLS:KERMIT.EXE/OPEN/HEADER/SHARE
$ COPY CKERMIT.INI SYS$TOOLS: $ SET PROTECTION=(S:RWED,O:RWED,G:RE,W:RE) SYS$TOOLS:CKERMIT.INI
$ DEFINE/SYSTEM CKERMIT_INI SYS$TOOLS:CKERMIT.INI
$ SHOW LOGICAL SYS$SYLOGIN "SYS$SYLOGIN" = "SYS$TOOLS:SYLOGIN.COM" (LNM$SYSTEM_TABLE)
and then add the following line to it:
$ KERMIT :== $SYS$TOOLS:KERMIT
This defines SYS$TOOLS:KERMIT.EXE as a "foreign command".
NOTE: VMS 6.2 and later support automatic creation of foreign commands by placing the corresponding .EXE (or .COM) files in any directory that is included in the DCL$PATH logical name; e.g.:
$ DEFINE DCL$PATH SYS$DISK:[],DISK1:[TOOLS],SYS$SYSTEM:
$ LIBRARY/HELP/DELETE=KERMIT SYS$HELP:HELPLIB.HLB $ LIBRARY/INSERT/HELP SYS$HELP:HELPLIB.HLB CKVKER.HLP
If the Kermit program is not installed as a "foreign command" as in (6) above, you can still RUN it, but you can't pass command-line arguments to it this way. However, you can pass command-line arguments if you invoke it with the MCR command:
$ mcr kermit -s oofa.txt ; (assumes "kermit.exe" in sys$system)
or:
$ mcr disk1:[olga]kermit -s oofa.txt ; (explicit path given)
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Before attempting to use a modem on port (say) TTA0, you (or the system manager) will need to configure the port as a modem port:
$ SET TERMINAL TTA0 /MODEM /ALTYP /PERM
From section 5.2.3.1 of the I/O User's Reference Manual:
Remote terminal connections have a timeout feature for the security of dial-up lines. If no channel is assigned to the port within 30 seconds, or a port with an assigned channel is not allocated, the DTR signal is dropped. Such action prevents an unused terminal from tying up a line. However, there are configurations (such as a printer connected to a remote line) in which the line should not be dropped even though it is not being used interactively. To bypass the 30-second timeout, set the system generation parameter TTY_DIALTYPE to 4. (Note that if TTY_DIALTYPE is equal to 4, all dial-up lines will skip the timeout waiting for a channel to be assigned.)
The following is reprinted by permission; references to Kermit-32 are obsolete.
How to Use a MODEM With Your VMS System
Richard B. Gilbert
Computer Systems Consultant
76702.1567@CompuServe.Com
Revised July 30, 1996
Most MODEMs come with factory defaults intended for dialout use with PCs. The MODEM is typically set to ignore DTR; e.g., assume that it is always asserted and to assert CD at all times regardless of the actual state of the received carrier. The user is not required to do much, if anything, to get it to work. Such a MODEM requires some configuration before it will work properly, or at all, with a VMS System.
Be sure that the serial port you are using supports MODEM control signals. On the DMF32, for example, only ports 0 and 1 can be used with MODEMS. These ports on the DMF32 must have DIP switches set to enable MODEM control signals. The VAXStation 3100 does NOT support MODEM control! (It is possible to use a MODEM but the VAXstation cannot detect the loss of the connection; the next person to dial in could find himself logged in to your account!) The MicroVAX 3100 does support MODEM control. As a general rule, anything with a DEC Modified Modular Jack (MMJ) connector does not support full MODEM control; the MMJ has only six pins and nine are required. Eight pin RJ45 connectors are sometimes used; e.g. on some models of the DECserver 700, where a choice is offered as to the signals supported.
Connect the MODEM with a cable that supports MODEM control signals, such as Digital's BC22E. The BC22F, connecting all twenty-five pins, is overkill but will work quite well. A twenty-five conductor ribbon cable will also work but a shielded cable is highly recommended in order to comply with Radio Frequency Interference (RFI) requirements.
Note that while it was possible to "fake it" with VMS V4.x and earlier, VMS V5 requires that all of the MODEM control signals be connected. (Pins 2-8, 20 and 22 should be connected straight through; i.e., 2-2, 3-3, 4-4, ...). If you are forced to sacrifice one signal, try RI (Ring Indicator) first. For reference, here is the standard pinout for the RS-232-C DB-25 connector.
| Pin | Description |
|---|---|
| 1 | Protective ground (may be connected to shield at ONE end only) |
| 2* | Transmitted data (TxD) |
| 3* | Received data (RxD) |
| 4* | Request to send (RTS) |
| 5* | Clear to send (CTS) |
| 6* | Data set ready (DSR) |
| 7* | Signal ground |
| 8* | Carrier detect (CD) |
| 12 | Speed Mode Indicate (or secondary CD) |
| 15 | Synchronous transmit clock |
| 17 | Synchronous receive clock |
| 19 | Speed select (or secondary RTS) |
| 20* | Data terminal ready (DTR) |
| 22* | Ring indicator (RI) |
| 23 | Data Signal Rate Select (DSRS) |
It should be noted that not all devices connect or support all these pins and not all those listed are necessary for "full MODEM control". The pins marked with an asterisk are generally essential to satisfactory and secure operation of your modem.
You will need to make some switch settings on your MODEM. The following settings are for a U.S. Robotics Courier V32bis FAX Modem. Other U.S. Robotics MODEMs use quite similar switch numbers and settings. Other manufacturers may use different switch numbers but the functions available are typical. See your MODEM's instruction manual for the sordid details. The settings marked with an asterisk are critical to the successful use of your MODEM. Some settings can also be made from the CPU via the MODEM's AT command set, in which case the hardware switch settings determine the MODEM's power on defaults. The AT commands in parentheses, following the switch settings, are the commands for a U.S. Robotics Courier HST Dual Standard MODEM. Check your manual for the proper commands for your MODEM.
Many users have observed a VMS System dropping DTR (Data Terminal Ready) while a user is trying to dial in, causing the MODEM to hang up the phone. The terminal driver will drop DTR if it sees DSR (Data Set Ready) for more than thirty seconds, without also seeing CD (Carrier Detect). If it is possible to configure the MODEM so that it does not assert DSR until it asserts CD (AT &S1&W), do so. Otherwise it will be necessary to use a modified cable. At the VAX end of the cable, cut the wire leading to pin 6 (DSR) and jumper pin 6 to pin 8 (CD). Commands similar to the following should be placed in your SYS$MANAGER:SYSTARTUP_VMS.COM (SYSTARTUP_V5.COM for VMS V5.X) file to set up an asynchronous port for use with a MODEM. You may want to add some more qualifiers but this will get you going.
$ SET TERMINAL -
/PERMANENT - ! Make settings permanent
/MODEM - ! Use MODEM control signals
/DIALUP - ! Gives the DIALUP identifier to user.
/HANGUP - ! Hang up the phone when user logs off
/AUTOBAUD - ! Detect the user's baud rate and set it.*
/ALTYPEAHD - ! Use the alternate typeahead buffer. The
! alternate typeahead buffer can be made larger
! than the regular one. This is helpful if you
! are doing file transfers. See SYSGEN parameter
! TTY_ALTYPAHD.
/HOSTSYNC - ! VMS System will send XOFF when its buffer is
! nearly full and XON when it is ready for more
! input. See SYSGEN parameter TTY_ALTALARM.
_TXA0:
$ SET SECURITY /CLASS=DEVICE /PROTECTION=W:R ! VMS V6
! Sets device protection to allow non-privileged
! users to allocate the device for dialing out.
! Otherwise user must own device or hold SYSPRV.
or
$ SET PROTECTION=W:R /DEVICE ! VMS V5
The following commands should probably go in SYS$SYLOGIN, your system-wide login command file:
$! Test for interactive or batch mode
$!
$ IF F$MODE() .NES. "INTERACTIVE" THEN GOTO 10$
$! Set up device dependant terminal characteristics. This only works
$! if the terminal responds to ANSI Device Attributes (DA) control string.
$! Most DEC terminals (VT1xx, VT2xx, VT3xx, VT4xx, VT5xx, LAxxx) and
$! compatibles will do so.
$ IF F$GETDVI("TT", "TT_MODEM") THEN $ SET TERMINAL /INQUIRE
$ 10$:
**************************************************************************
To set the terminal for temporary dialout use, execute the following commands:
$ ALLOCATE TXA0: KER$COMM ! Logical is useful for Kermit-32. $ SPEED="''P1'" $! Default to 1200 baud. ! Pick a suitable default value. $ IF SPEED .EQ. "" THEN SPEED=1200 $ SET TERMINAL /NOAUTOBAUD /SPEED='SPEED' KER$COMM:
You may need to add a /NOECHO qualifier if your terminal program is too stupid to read with no echo. It is not necessary with SET HOST/DTE, KERMIT, XMODEM, or HOST32.
To support a MODEM on a DECServer 200:
Local> DEFINE PORT 8 ACCESS DYNAMIC AUTOBAUD DISABLED Local> DEFINE PORT 8 DSRLOGOUT DISABLED FLOWCONTROL XON Local> DEFINE PORT 8 INACTIVITY ENABLED MODEM ENABLED Local> DEFINE PORT 8 SIGNAL CHECK ENABLED Local> DEFINE PORT 8 SPEED 2400 ALTERNATE SPEED 1200 Local> DEFINE PORT 8 DIALUP ENABLED Local> LOGOUT PORT 8 Local> DEFINE SERVICE service_name PORT 8 IDENT "string" Local> SET SERVICE service_name PORT 8 IDENT "string"
Other port characteristics may be defined "to taste".
CREATE PORT LTA100: /NOLOG
SET PORT LTA100: /APPLICATION /NODE=server_name /SERVICE=service_name -
/NOQUEUE /NOLOG
The LTA number is more or less arbitrary but must take into account the fact that LAT startup creates a few ports temporarily (starting at LTA1) and the number you choose must not conflict.
The server_name and service_name must correspond exactly to the names used in the DECserver DEFINE SERVER server_name and DEFINE SERVICE service_name commands!
$! $ @SYS$STARTUP:LAT$STARTUP.COM ! Start LAT. $! Note that SYS$STARTUP:LAT$STARTUP.COM starts LAT and then invokes $! LAT$SYSTARTUP.COM to complete the system specific part of the startup. $! VMS V5.4 and below would use @SYS$MANAGER:LTLOAD.COM. $! $! Set up MODEM port on terminal server. The SET TERMINAL may not $! be necessary at all since the DECserver DEFINE commands include equivalents $! for everything except /ALTYPEAHD. $ SET TERMINAL /PERMANENT /DIALUP /ALTYPEAHD /HOSTSYNC LTA100: $ SET SECURITY /CLASS=DEVICE /PROTECTION=W:R LTA100:
[ Contents ] [ C-Kermit ] [ Kermit Home ]
unzip -aa ckv211.zip
C-Kermit is written in the C programming language. To build C-Kermit on the VAX, you must have VAX C, DEC C, or GNU GCC. At some sites, the C header files are archived in a VMS library and then VMS C-Kermit might not be compilable. If the C compiler (preprocessor) complains about not being able to find header files, you'll have to extract them from the library. A sample DCL procedure for this can be found at the end of this file.
WARNING: When building with GCC on a VMS system that has Multinet installed, you must ensure that the GCC TIME.H file is used instead of the Multinet TIME.H; otherwise there will be a fatal error in CKVTIO.C at the declaration of "tcount", around line 450. Other warnings appear to be harmless.
WARNING: DEC C 4.0 has a bug in which the XABALL struct member xab$b_bkz (used in CKVFIO.C) is not defined. DEC gives a simple example -- compiling the following code with DEC C using either /DECC and /VAXC:
#include <rms.h>
struct XABALL xabDATAall;
int f() {
xabDATAall.xab$b_bkz = 63;
return 1;
}
Results in:
%CC-E-NEEDMEMBER, In this statement, "xab$b_bkz" is not a member of "xabDATAall"If you find that the above code produces the same problem on your system, define BUGFILL7, e.g.:
@ckvker.com "" "" "BUGFILL7"
BEWARE: Certain versions of VAX C can generate incorrect code when a function is used before it is declared, and it generates a return value (via a return statement) that is not used; other functions might have their entry masks (argument lists) corrupted. If you experience bizarre behavior from a version of C-Kermit built with VAX C, try recompiling with /OPT=NOINLINE and /NOOPT, or some other reduced optimization level.
Both VAX C and DEC C are moving targets. A version of C-Kermit that was built successfully with version x.y of the compiler almost always fails to build under version x.y+1. Thus you will find increasing numbers of #ifdefs in the code (mostly CKCNET.C and .H and the CKV*.* modules) keyed on explicit C compiler version numbers. Note the form of these carefully -- they have to be just right). Also note that you can't use constructions like:
#if __DECC_VER >= 500000000
ANYWHERE in a portable module because neither "#if" nor relational operators in preprocessor statements are portable.
The number of possible VMS C-Kermit configurations is large, perhaps not even countable: VAX vs Alpha, VAXC vs DECC vs GCC, no network support vs Multinet vs TCPware vs Wollongong vs UCX vs CMU/Tek, and this release of VMS versus all the others. The kicker is in the releases; for example DEC C 4.0 vs 4.1 vs 5.0 vs 5.3 (etc) versus the TCP/IP product's header files, which themselves go through all sorts of releases and patches. We can't guarantee that C-Kermit can be successfully built on every combination, but in version 6.0 we are much closer to that goal than ever before.
Before leaving this topic, let's look at how to find out the relevant version numbers. SHOW SYSTEM (among other commands) tells you the VMS version number. To find the C version number, try:
$ CC /VER
which works for recent DECC versions, or:
$ CC NLA0: /NOOBJ /VERSION
or (when the above doesn't work):
$ CC/LIST=FOO SYS$INPUT ^Z
and then look at the first line of FOO.LIS.
The method for finding out the TCP/IP product version number depends on the product. For Multinet:
$ MU SHOW /VERSION
For DEC TCP/IP (UCX) versions 3.0 and later:
$ UCX SHOW VERSION
For earlier releases, or ones where the above command doesn't work, try:
$ RUN SYS$SYSTEM:UCX$VERSIONS
or:
$ ANALYZE/IMAGE SYS$SYSTEM:*BGDRIVER
or:
$ ANALYZE/IMAGE SYS$LOADABLE_IMAGES:*BGDRIVER
For others: (somebody please fill this in)
Before trying to compile, make sure you've got the disk space and quotas, etc, that are needed. In version 6.0 and later, you'll probably need as much as 8 or 10 megabytes for all the sources, objects, and binaries.
The User Authorization File (UAF) parameters of the account in which C-Kermit will be built must be set to accomodate the large size of some source modules. Recommended values are:
PAGE FILE QUOTA: at least 60000 Working set extent: at least 5012
To modify: Suppose a user KERMIT is the VMS account from which Kermit is maintained. To set these values, the system manager must do the following:
$ set default sys$system $ mcr authorize UAF> modify kermit/pgflquo=60000/wsextent=5012 UAF> exit
If errors such as:
%cc-f-text Virtual Memory limits exceeded
occur during the build procedure, these parameters may need adjustment (upwards).
To build C-Kermit, create a new directory and make it your current directory:
$ CREATE/DIR [.KERMIT] $ SET DEFAULT [.KERMIT]
and put the C-Kermit source files and build procedures there, for example by copying them from the distribution tape or cartridge.
Two build procedures are provided for C-Kermit 6.0 and later; one (CKVOLD.COM) for VMS 4.x, the other (CKVKER.COM) for VMS 5.0 and later. The two are equivalent except for syntax, and should work everywhere. No extra products (MAKE, MMS, MMK, etc) are required (but MMS or MMK will be used if present). The auxilliary file CKVKER.MMS is used if MMS or MMK are present. To build C-Kermit:
$ @CKVKER (or @CKVOLD)
Please read the comments at the top of CKVKER.COM itself for further instructions and information.
NOTE: if you get messages like this in the link step:
%LINK-I-OPENIN, Error opening SYS$COMMON:[SYSLIB]VAXCRTLG.OLB; as input, %RMS-E-FNF, file not found %LINK-I-OPENIN, Error opening SYS$COMMON:[SYSLIB]VAXCRTL.OLB; as input, %RMS-E-FNF, file not found
it probably means you have a LNK$LIBRARY symbol defined in your job (or system-wide) and the definition is inappropriate. DEASSIGN it if possible. If not, and if the LINK step produced no other error messages, and the WERMIT.EXE binary seems to run OK, then you can ignore the error messages.
If you get huge amounts of warnings like:
getsockname(sock,(struct sockaddr *)&l_sa,&slen);
............^
%CC-W-PTRMISMATCH, In this statement, the referenced type of the pointer
value "&slen" is "int", which is not compatible with "unsigned int".
at line number 5870 in file DISK$USRG:[FDC.KERMIT]CKCNET.C;20
this indicates that some essential header file is not being executed, which can happen for all sorts of reasons (usually some symbol was defined by some other header file that interferes with a subsequent one). The trick here is to get an include-file listing, which is possible with DECC (maybe VAXC too):
@ckvker.com "" "" "" /LIST/SHOW=INCLUDE
and then look through the CK????.LIS file of the offending module.
#ifdef __DECC_VER #if (__DEC_VER >= 050100000) blah #endif #endif
Note: the version number is vvuuteeee; vv is the major version (like 5), uu is the update number (like the "3" in 5.3), t is a code for field test, real release, etc, and eeee is the edit suffix. This is available only in DECC 5.0 and later. It also has a __VMS_VER... Note #2: Remember not to add a leading zero because that changes it to octal.
then you can include TCP/IP capability in your version of VMS C-Kermit.
The TCP/IP product is selected automatically by the build procedure based on the presence or absence of certain files on your system. To override the automatic selection, define the symbol NET_OPTION in one of the following ways before running the build procedure:
$ NET_OPTION = "NONET" ! Build with no TCP/IP networking support $ NET_OPTION = "CMU_TCPIP" ! Build with CMU/Tek TCP/IP networking support $ NET_OPTION = "DEC_TCPIP" ! Build with DEC TCP/IP (UCX) support $ NET_OPTION = "MULTINET" ! Build with TGV MultiNet TCP/IP support $ NET_OPTION = "TCPWARE" ! Build with Process Software TCPware support $ NET_OPTION = "WINTCP" ! Build with WIN/TCP or PathWay support
That is, type one of the commands listed above at the DCL prompt (shown above as "$") before running the build procedure. You can also force a "NONET" build with the CKVKER.COM "N" command-line option.
Note: If you are building a version with TCP/IP support, and you have the required TCP/IP libraries and header files, but the #include files can't be found at compile time, then maybe they were put into a text library, in which case you need to unpack the include-file library into separate files using the VMS LIBRARY command.
If the DEC TCP/IP version of KERMIT.EXE crashes immediately upon startup with a message like:
%LIB-E-ACTIMAGE, error activating image R4GRIE$DIA0:[SYS0.SYSCOMMON.][SYSLIB]UCX$IPC_SHR.EXE;1 -SYSTEM-F-PRIVINSTALL
it means the system manager has to install the UCX sharable library:
INSTALL ADD SYS$SHARE:UCX$IPC_SHR.EXE
C-Kermit 7.0 has been verified to build on VMS ... with Pathway 3.1 with a few harmless warning messages, but the following change is required to the Attachmate-supplied file TWG$TCP:[NETDIST.MISC]DEF.COM to remove the definition of DECC$SYSTEM_INCLUDE:
$ diff twg$tcp:[netdist.misc]def.com
************
File TWG$COMMON:[NETDIST.MISC]DEF.COM;2
37 $! define decc$system_include twg$tcp:[netdist.include], -
38 $! twg$tcp:[netdist.include.sys]
39 $!
******
File TWG$COMMON:[NETDIST.MISC]DEF.COM;1
37 $ define decc$system_include twg$tcp:[netdist.include], -
38 twg$tcp:[netdist.include.sys]
39 $!
You can't build VMS C-Kermit with Wollongong TCP/IP support using GCC due to the use of "noshare" in the Wollongong header files.
Reportedly, when building C-Kermit with WIN/TCP support with older versions (5.1 and earlier?) of WIN/TCP, the symbol WIN$PERROR is undefined at link time and the build fails. Workaround: change the one reference to win$perror(), which occurs in the contti() function in CKVTIO.C, to be simply perror().
vmsnet.networks.tcp-ip.cmu-tek
BSD socket support for C-Kermit is supported thanks to a new CMU-OpenVMS/IP socket library written by Mike O'Malley of Digital Equipment Corporation. If you have this library installed on your VMS system, the build procedure will find the file CMUIP_ROOT:[SYSLIB]LIBCMU.OLB and C-Kermit will be built automatically with CMU-OpenVMS/IP support unless you define NET_OPTION to say otherwise. The LIBCMU socket library can be found on the kermit.columbia.edu anonymous ftp server.
[ Contents ] [ C-Kermit ] [ Kermit Home ]
| Model number: | DEC3000/400, a workstation with 64MB of memory. |
| Ports used: | OPA1: (a MMJ connector for the alternate operator console) TTA1: (a 25-pin male D-connector on the back) |
| Operating System: | OpenVMS V1.0 |
| Firmware: | V1.1 |
Upon power-up, the console displays something like:
... CPU OK KN15-BA V1.1-S11A IO20 sV1.0 DECchip 21064 P2.1 ...
Testing setup 1: OPA1:
+-------+ | MMJ--- DECconnect cable ---MMJ H8571-A--- modem cable to PC +-------+ (passive adapter)
In words, plug a DECconnect cable with MMJ plugs on both ends in the alternate console port on the back of the DEC3000/400. Make sure S3 is in the "up" position. The workstation screen is now the console (OPA0:) and the extra port, OPA1:, is available for connecting a terminal or printer. This MMJ plug is the only MMJ plug on the back of this machine.
My other host for the test is a DECpc 466, a 66MHz i486 with DOS 5.0 and MS-DOS Kermit 3.12. The 466 has 2 serial ports, both 9-pin. I attached a standard 9-pin to 25-pin modem cable (the ones that came into existence with the IBM PC/AT which originally had only a 9-pin serial port) to the serial port on the 466.
Now we must join a 25-pin connector and a MMJ connector. This is done with a passive adapter (H8571-A) which converts the RS423 signalling standard (balanced TX+ TX- RX+ RX-, DTR, DSR) to RS-232. All this is fairly standard for DEC sites. Note that when connecting a modem to an MMJ connector, we have only a subset of the required modem signals, so this is not supported via MMJ. The other port (TTA1) has full modem control. Note that the DECconnect cable always reverses TX and RX, so it effectively functions as a NULL-modem cable.
Testing setup 2: TTA1
+-------+ | 25-pin D connector --- NULL modem cable to PC +-------+
Use the (only) 25-pin D-connector on the back. Now we need a null modem cable (see the Kermit book), and, because my PC has a 9-pin serial port, I also need a 9-pin to 25-pin modem cable.
Testing setup 3: LAT
Connect the PC with a standard cable to the terminal server, which speaks LAT to my DEC3000/400. The speed can be set up to 19200 baud with the terminal server in use.
Test script for setup 1 and 2:
$ kermit C-Kermit>set line xxx (where xxx is OPA1 or TTA1) C-Kermit>set speed 19200
C:\kermit MS-Kermit>set port 1 MS-Kermit>set speed 19200 MS-Kermit>server
C-Kermit>get test.fil C-Kermit>finish
MS-Kermit>quit
Test script for setup 3 (LAT):
C:\kermit MS-Kermit>set port 1 MS-Kermit>set speed 19200 MS-Kermit>connect
( Now log into DEC3000 as host )
$ kermit -x
( back to the PC )
MS-Kermit>get test.fil MS-Kermit>bye
Results:
In all three cases, the data transfer speed is excellent. Over 80% of the bandwidth of the communication channel is used for the file transfer, sometimes even more. The DEC3000 is loaded with processes (MOTIF, Sybase DBMS, NFS clients and servers,...) and heavy network activity (DECnet, LAT, TCP/IP but no characters have ever been lost, even when the DBMS fires up. No special SYSGEN parameters, just configured for a normal workstation with MOTIF.
Notes:
In a system like this out of the box, the device protection on TTA1 and OPA1 does not allow an unprivileged user to use these lines for DIAL-OUT from Kermit. Thus, the system manager must set every time the system is rebooted:
$ set protection=w:rwlp/device OPA1: $ set protection=w:rwlp/device TTA1:
Without these special protections, a terminal connected to these ports will still be able to login and get the "Username:" prompt.
The Alpha VMS V1.0 cover letter mentions that the command
$ set terminal/speed=nnnn/perm/opa1:
will have no effect on the speed of OPA1. In practice, there is no problem with Kermit file transfers. The data just get thru fine and file transfers are OK. The release notes also mention that setting the speed of OPA1 can be accomplished by setting the console environment variable "tta1_baud" to the desired speed. See the hardware guide on how to do this. The problem will be fixed in a future release.
[ Contents ] [ C-Kermit ] [ Kermit Home ]
(The reason it isn't practical to build VMSINSTAL kits is that they would be HUGE -- we have five networking options times two processors (VAX and Alpha) times two choices of whether you want to build from the source code or accept the included binary, and the resulting kit still would not solve the many VMS configuration problems discussed above.)
After building C-Kermit using one of the procedures outlined above, execute the DCL procedure CKVMSI.COM to create a VMSINSTAL kit. This kit can be created either with or without the source code. In any case, it includes the C-Kermit executable program, the C-Kermit help file (for installation in your HELP library), plus a sample CKERMIT.INI (C-Kermit initialization) file, and release notes. You may now install C-Kermit using the command:
@sys$update:vmsinstal kermit
It will prompt you for which components you want installed, and where to put them. CKVMSI and CKVKIT were written by Terry Kennedy of Saint Peters College.
$! $! XTRACTHD.COM $! By Robert Weiner, Programming PLUS, rweiner@watsun.cc.columbia.edu $! FEB-1992 $! Use this Extract Header command script to extract the VAXC header files $! from sys$library:vaxcdef into the current directory inorder to compile $! ckermit if you don't have the include files already in sys$library: $! You must also modify the CKVKER.COM procedure to include $! "CCFLAGS = /INC=([])" for this to work, ie. search current directory too. $! $ write sys$output "Extracting CKERMIT Include Files into Local Directory..." $! $lib /log /extract=CTYPE /output=CTYPE.h sys$library:vaxcdef.tlb $lib /log /extract=DCDEF /output=DCDEF.h sys$library:vaxcdef.tlb $lib /log /extract=DESCRIP /output=DESCRIP.h sys$library:vaxcdef.tlb $lib /log /extract=DEVDEF /output=DEVDEF.h sys$library:vaxcdef.tlb $lib /log /extract=DVIDEF /output=DVIDEF.h sys$library:vaxcdef.tlb $lib /log /extract=ERRNO /output=ERRNO.h sys$library:vaxcdef.tlb $lib /log /extract=FILE /output=FILE.h sys$library:vaxcdef.tlb $lib /log /extract=IN /output=IN.h sys$library:vaxcdef.tlb $lib /log /extract=INET /output=INET.h sys$library:vaxcdef.tlb $lib /log /extract=IODEF /output=IODEF.h sys$library:vaxcdef.tlb $lib /log /extract=JPIDEF /output=JPIDEF.h sys$library:vaxcdef.tlb $lib /log /extract=LIMITS /output=LIMITS.h sys$library:vaxcdef.tlb $lib /log /extract=NETDB /output=NETDB.h sys$library:vaxcdef.tlb $lib /log /extract=RMS /output=RMS.h sys$library:vaxcdef.tlb $lib /log /extract=SETJMP /output=SETJMP.h sys$library:vaxcdef.tlb $lib /log /extract=SIGNAL /output=SIGNAL.h sys$library:vaxcdef.tlb $lib /log /extract=SOCKET /output=SOCKET.h sys$library:vaxcdef.tlb $lib /log /extract=SSDEF /output=SSDEF.h sys$library:vaxcdef.tlb $lib /log /extract=STARLET /output=STARLET.h sys$library:vaxcdef.tlb $lib /log /extract=STAT /output=STAT.h sys$library:vaxcdef.tlb $lib /log /extract=STDIO /output=STDIO.h sys$library:vaxcdef.tlb $lib /log /extract=STDLIB /output=STDLIB.h sys$library:vaxcdef.tlb $lib /log /extract=STRING /output=STRING.h sys$library:vaxcdef.tlb $lib /log /extract=STSDEF /output=STSDEF.h sys$library:vaxcdef.tlb $lib /log /extract=SYIDEF /output=SYIDEF.h sys$library:vaxcdef.tlb $lib /log /extract=TIME /output=TIME.h sys$library:vaxcdef.tlb $lib /log /extract=TIMEB /output=TIMEB.h sys$library:vaxcdef.tlb $lib /log /extract=TT2DEF /output=TT2DEF.h sys$library:vaxcdef.tlb $lib /log /extract=TTDEF /output=TTDEF.h sys$library:vaxcdef.tlb $lib /log /extract=TYPES /output=TYPES.h sys$library:vaxcdef.tlb $lib /log /extract=UAIDEF /output=UAIDEF.h sys$library:vaxcdef.tlb $! $! The end $!
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