RE: Checking file existence on windows server

[jmmckee <jmmckee@xxxxxxxxxxxxxx>]

If you are attempting to retrive a specific file name, if the GET fails, FTP will log a specific message.  I can't recall the message ranges specifically, but if the return message starts with 100 through 199, that indicates success.  There is a specification about the number ranges.  Unlike sFTP. all messages have standard numbers.  But, the returned text is not guaranteed.  The message number, the first three characters, is somewhat consistent.  The first character is always, from my experience, reliable.  Thus, in the ftp log, the message logged immediately following the get atempt will always start with a digit one if successful.

If the specific file name is unknown at the time of the get, then you need to examine the file date returned from the server for the file.  I have a two step CL get process to retrieve first the list of available files, and then, using that list, files with a specific date on the remote server.  The code is somewhat specific to the format used by DEC, but is adapatable.

John McKee
-----Original message-----
From: "Dennis Lovelady" iseries@xxxxxxxxxxxx
Date: Mon, 09 Aug 2010 10:53:01 -0500
To: "'Midrange Systems Technical Discussion'" midrange-l@xxxxxxxxxxxx
Subject: RE: Checking file existence on windows server

> If this file is available to you via IFS e.g. as a windows share) you can
> use stat() or fstat() to determine this.
>
> A kludgey FTP process may do the trick otherwise(?)
>
> Dennis Lovelady
> http://www.linkedin.com/in/dennislovelady
> --
> The difference between genius and stupidity is that genius has its limits.
>         -- Albert Einstein 
>
>
> > Can anyone give me an idea of the best, most reliable, way (if it is
> > even possible) to check to see if a file exists on a Windows server
> > from an iSeries RPG (or CL) application? I want to try and condition an
> > action in an RPG application based on a picture files existing or not
> > existing on the windows server. My only thought is to create an IFS
> > directory and FTP all the files from the server directory to the IFS
> > and then check to see if an IFS file exists using CHKIFSOBJ
> >
> > Thanks
> > --
>
>
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