I would have to somewhat disagree with that position. If a COBOL program issues OPEN INPUT for a file, that file *can* be READ by that program. If it issues OPEN OUTPUT or OPEN IO then that file *can* written to, and possibly also read for the IO case.
You are right about the most general case, but for ITschak's case whether a program DOES do read and/or write of a file isn't necessary to know, only that it is *possible*. Other languages have similar syntax markers. It isn't always necessary to know everything about a program's logic, only that it has the possibility to read or write or both. Various vendor "software inventory" products do this already. It isn't perfect, but it is "good enough" for most purposes. In ITschak's case, I also think it will be "good enough" to let his tool at least flag the possibility of access / SAF issues. It's still up to the application owner to decide if there is an issue or not. Peter -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Jeremy Nicoll Sent: Friday, July 28, 2017 4:42 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: JCL Convertor On Fri, 28 Jul 2017, at 21:18, ITschak Mugzach wrote: > Just to make sure... It is my understanding that JCL converter & > interpreter are only available by job submit and no direct call to > these services. My intent is to get the source code from the change > management product and look how files are opened. But you won't be able to tell how files are opened, without looking at the program logic... which will require you to read all the program parms and files, and replicate what the program does. You can't do that... the only way to tell what a non-trivial program will do is to run it. -- This message and any attachments are intended only for the use of the addressee and may contain information that is privileged and confidential. If the reader of the message is not the intended recipient or an authorized representative of the intended recipient, you are hereby notified that any dissemination of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by e-mail and delete the message and any attachments from your system. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
