Conference noted::hackers_v1

450.0. "LATPAD -- A LAT monitor hack" by SYRAH::THOMAS (The Code Warrior) Tue Apr 21 1987 19:47

    Here's a (currently) small program to monitor your Ethernet for
    LAT nodes and services and display the information in a compact
    manner.  The image is SYRAH""::LATPAD.EXE is about 30 blocks long.
    
    Note, LAT must not be running (especially on V4.4 or V4.5 uVAX systems)
    or it willl not run.  To stop LAT if it is running you must have CMKRNL
    and go into LATCP and do a STOP NODE.  (If this is a multi user system,
    make sure no one wants to use LAT). 
    
    Then RUN the program.  It should automaticly find the Ethernet device
    on your system.  But if it doesn't, define LATPAD$DEVICE to point to
    the device (_XQB0: or whatever) and let me know what happened. 
    
    LATPAD automaticly adjusts to the screen size so if you have a busy
    Ethernet, either set your width to 132 or (on a VAXstation) increase
    the page size (or both).

    Comments welcome,
    matt
    
-----------
    
    The display is divided into 4 sections:
    
    The summary and group display at top, the node display below that,
    then the services display, and at the bottom the command and message
    display.
    
    The summary display looks like:
    
 Nodes:  54 (54)     Services:  62 (66)  Active Groups:  17 (17)    14:09:48.97 

    Nodes:  54 (54) displays the current number of reachable nodes and
    the total number of nodes known over the life of the program (ie
    how many different nodes it saw).
    
    Services:  62 (66) displays the current number of available services
    and the total number of services currently offered.  The difference
    is due a service that is ofered by multiple nodes.
    
    Active Groups:  17 (17) display the number of active groups and
    the number of known groups.
    
    Finally the time the display was last updated.

-----------
    
    The group display looks like:
    
 Active     0-127:  FF 07 10 02     xx 21 xx xx     xx xx 01 xx     xx xx xx xx 
 Groups   128-255:  xx xx xx xx     xx xx xx xx     xx xx xx xx     xx xx xx 04 
    
    Each 'xx' represent that no node has enabled that octet of group
    codes.  The rest of display are bitmasks (in hex) of the enabled
    groups.
    
    This display may be modified by the SHOW {ACTIVE,KNOWN,INACTIVE}
    GROUPS command.  (One of the few commands currently working)

-----------
    
    The node display looks something like:

@BIGSUR   @ISWSW     LAT024   @SYRAH         WROLAT022
@BMSWST   @JIFFY    @LORAN    @TEXAS        @XM
@BRGNDY   @JULIET   @MUSCAT   @THE780
@CELLAR   @KNARLY   @OPUS1    @USWR01
@CICERO    LAT002   @PUZZLE   @USWRSL
@CONTRL    LAT003   @SCCHMP   @WR1FOR
@CRAFTY    LAT005   @SCRUZ    @WR2FOR
@DOOBER    LAT006   @SFCHMP   @WRAMPS
@DROOPR    LAT007   @SKIPER   @WRO10A
@F104      LAT010   @SKYLRK   @WRO10B
@FLEAGL    LAT011   @SLOOP     WRO1LAT018
@IDSWST    LAT014   @SNORKI   @WRO4RT
@ISWSRD    LAT015   @SUNTAN   @WRO8A
    
    The node display shows all nodes that have become know to the program.

    If a @ appears before a node then it offers a service of the same name.
    	(Node SYRAH offers a service named SYRAH.)
    If a * appears before a node then it was recently discovered.
    If a - appears before a node then it is currently unavilable.

    Differences from the previous display are bolded.
    
-------------------
    
    The service display looks like:

 AIC: JIFFY[122]                      SWITCH96: LAT003[255]
 BARD: CICERO[225]                    TESTSLO: LAT002[0]
 COMM: LAT003[255]                    TSN: LAT015[254],LAT014[253]
 FILETEST: WROLAT022[255]             USSE01: WRO1LAT018[253]
 FOCUS: LORAN[119],SLOOP[119]         VB2: LAT011[255]
 NWD: LAT010[252]                     WINERY: BRGNDY[52],CELLAR[37]
 ORCAS: WRO1LAT018[253]               vb1: LAT005[255]
 OSCAR: LAT006[255]
 RMD: LAT010[255]
 SCC: LAT024[244]
 SWITCH12: LAT007[255],LAT003[254]
 SWITCH24: LAT003[254]
 SWITCH48: LAT007[252]

    The service displays only services that are offered by multiple nodes,
    whose name differs from the offering node, or is currently unavailable.

    Each service is displays in the format of
    
    	service_name: offering-node[service-rating][,...]

    If a * appears before a service then it was recently discovered.
    If a - appears before a service then it is currently unavilable.

    Differences from the previous display are bolded.

    File doesn't seem to be there....?
    
    

    Sitting in the default DECnet account on SYRAH:: (10.97)
    
    You might try SYRAH""::SYS$COMMON:[DECNET]LATPAD.EXE but
    SYRAH""::LATPAD.EXE should do.  

    New version (same place SYRAH""::LATPAD.EXE):
    
    New commands:
    
    	SHOW {ACTIVE,KNOWN,INACTIVE,UPDATED} {NODES,GROUPS,SERVICES}
    	SHIFT {NODES,SERVICES} {LEFT,RIGHT} amount

    Except that SHOW UPDATED GROUPS is disallowed.
    There are some qualifiers for SHOW {...} SERVICES:
    
    	/MULTIPLE	Only show multiply offered services
    	/NOMULTIPLE	Show all services
    	/RATINGS=
    	    NONE	Show only the services name
    	    HIGHEST	Show just the node with the highest service rating
    	    ALL		Show all nodes offering the service (with ratings)

    The SHIFT command allows you to move the display relative to it's "window"
    left or right. For example, SHIFT SERVICES LEFT 80 moves the window to
    right 80 columns or the display to the left 80 columns.