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Volume 4, Number 32 -- September 22, 2004

Four Hundred Guru is taking a vacation on Sept. 29 and will resume publishing on Wednesday, Oct. 6.


 
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A Generic Command Choice Program
by Bruce Guetzkow

I've had many opportunities to create my own commands on the AS/400, iSeries, and i5. Although you can use the VALUES or SPCVAL keywords to hardcode valid values, changing valid values requires changing the command source. On occasion I've created a command with a keyword for which valid values are already stored in a file. By specifying the CHOICE and CHOICEPGM parameters on the PARM, ELEM or QUAL statements, you can create a program to display the list of valid values stored in that file. The following is an example of a generic program you can use for any command/keyword combination with data in nearly any file. READ MORE >

 

Command Authority and LOGCMD
Hey, Wayne O.:

Is there a security exposure if a user has command line access plus special authorities, such as job control (*JOBCTL) and spool control (*SPLCTL), with the *PUBLIC authority is set to *USE for commands such as CRTUSRPRF, DLTUSRPRF, CHGUSRPRF, GRTUSRAUT, DLTLIB, CLRLIB, CRTLIB, CHGSYSVAL, CHGOBJOWN, GRTOBJAUT, CHGDSTPWD? Do you need to set the *PUBLIC authority to *EXCLUDE for these commands? What harm can the users with command line do? And do programmers really need *ALLOBJ authority? READ MORE >

 

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  Optional Parameters and CL Procedures: Valuable Info from IBM
  Hey, Ted:

In "Optional Parameters and CL procedures," you said that ILE CL procedures can handle unpassed parameters by monitoring for message MCH3601. While it's perfectly safe to test for omitted parameters (those for which the caller specified the special value *OMIT) by monitoring for MCH3601, it's dangerous to depend on MCH3601 for unpassed parameters. RTV-type commands are also safe; they work like *OMIT parameters by passing null pointers. READ MORE >




Reader Feedback and Insights

We value your feedback and insights. Feel free to send a letter to the editor. Letters may be printed, unless otherwise specified, and edited for clarity or length. READ MORE >


Technical Editors: Howard Arner, Joe Hertvik, Ted Holt,
Shannon O'Donnell, Kevin Vandever
Managing Editor: Shannon Pastore
Contributing Technical Editors: Joel Cochran, Wayne O. Evans, Raymond Everhart,
Bruce Guetzkow, Marc Logemann, David Morris
Publisher and Advertising Director: Jenny Thomas
Advertising Sales Representative: Kim Reed
Contact the Editors: To contact anyone on the IT Jungle Team
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THIS ISSUE
SPONSORED BY:

Advanced Systems Concepts
WorksRight Software
Bug Busters Software Engineering


BACK ISSUES

TABLE OF
CONTENTS
A Generic Command Choice Program

Command Authority and LOGCMD

Optional Parameters and CL Procedures: Valuable Info from IBM


OS/400 PTF Guide
Sept. 18

Sept. 11

Sept. 4

The Four Hundred
OpenPowers Prove IBM Can Do Puppy i5s

eServer i5 Solution Editions Hit the Streets

New TPC Benchmarks Are on the Horizon

Four Hundred Stuff
EVault Brings Online Backups to the iSeries

MKS Integrates Workflow Application with WDSc

Business Intelligence Tool Gets Better PeopleSoft Compatibility

Four Hundred Monitor




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