Re: RPG, IFS, and FTP

[Scott Klement <klemscot@xxxxxxxxxxxx>]

What you needed to do was specify different flags on the two calls
to open() (or openstmf() in your case)


first call:       O_CREAT + O_TRUNC + O_RDWR + O_CODEPAGE
The idea is to create the file (or clear it) and assign it a codepage.
For this call, you also need to specify the codepage and the mode.

second call:      O_RDWR + O_TEXTDATA
The idea here is to open an already existing file (you created it
in the first call) in text data mode.

Of course, if you're only writing to the file, not also reading,
you'd want to use O_WRONLY instead of O_RDWR.

Is this making sense?




On Mon, 28 Oct 2002, Brad Stone wrote:

> Oh, I see.  I shouldn't have specifyed O_TEXTDATA on the
> first create, and only specified it on the second create.
> Correct?  (see code in response to Eric..)
>
> Man, I need a nap.  :)
>
> Brad
>
> On Mon, 28 Oct 2002 17:04:17 -0600 (CST)
>  Scott Klement <klemscot@klements.com> wrote:
> >
> > Are you creating the file with O_CREAT and at the same
> > time assigning
> > O_TEXTDATA and O_CODEPAGE?  If so, that's the problem.
> >
> > When you open a file with O_TEXTDATA it translates
> > whatever the codepage
> > on the file is...  however, if the file doesn't exist, no
> > code page has
> > been assigned, so no translation is done.  When you use
> > O_CODEPAGE, you
> > are assigning a code page...  OS/400 thinks that the data
> > you're writing
> > to that file will already be in that code page, and
> > that's why you're
> > assigning that.
> >
> > For example, if you were writing an HTTP client (since I
> > know yu've done
> > this) and you've asked the server for a codepage, you'd
> > tell the AS/400
> > that codepage.  You wouldn't want the data translated,
> > because you'd be
> > receiving it on the socket already in that page.
> > And, that's what OS/400 thinks is happening...
> >
> > The solution is pretty simple.   First create the file
> > with
> > O_CREAT & O_CODEPAGE, then close() it and open it again.
> > This time with
> > O_TEXTDATA.   Since the file already exists, and already
> > has a code page,
> > the system will automatically translate for you.
> >
> > Good Luck!
> >
> >
> > On Mon, 28 Oct 2002, Brad Stone wrote:
> >
> > > I am creating an IFS file with an RPG program.  I am
> > > specifying the file as text data, code page 819.
> > >
> > > If I use WRKLNK to view the file, it looks great.  If I
> > try
> > > and use FTP to download the file, it's all garbage on
> > my PC.
> > >
> > > can anyone explain why?  :)
> > >
> > > I'm having a little brain fry today...
> > >
> > > Brad
> >