[Info-vax] Marketing ideas for VSI ?

johnson.eric at gmail.com johnson.eric at gmail.com
Mon Dec 17 06:37:32 EST 2018


On Sunday, December 16, 2018 at 8:22:53 PM UTC-5, Dave Froble wrote:
> Logicals can be very helpful.  They can also be abused.  The following 
> is an example of what I consider a decent use of logical names, and it 
> is very helpful with finding, accessing, building executables, and such.

I actually still like logicals and kind of miss them!

One possibility to consider is that on at least on Linux, it's possible
to create a library that can intercept calls to things like open, creat, 
stat, and the like so that one could implement your own notion of
logicals on at least a per process basis.

Once you intercept all the right routines then it really works for
everything - including bash itself!

I suspect that the packages offered by places like Sector7 or
Transsoft employ this technique.

The topic to read up on would be the LD_PRELOAD environment 
variable. But then again - all of this also presumes a desire to deal
with C.

EJ



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