Re: "Conversion Error" when opening Stream File

Hi, Bruce.

I was going to do this, but I thought I read somewhere that
O_CCSID wasn't avialble until V5R2 and my software is
supported down to V4R5.

On Thu, 26 Oct 2006 10:52:31 -0500
 Bruce Vining <bvining@xxxxxxxxxx> wrote:

Brad,

I would recommend changing over to O_CCSID from
O_CODEPAGE. 

At 

http://www-03.ibm.com/servers/eserver/iseries/software/globalization/ccsid_list.html

you can find the definitions of the various CCSIDs
supported by i5/OS.  If 
you look at CCSID 935 you will see that there are
actually two code pages 
involved as 935 is an EBCDIC mixed SBCS/DBCS CCSID.  The
two code pages 
are 836 for the SBCS code points and 837 for the DBCS
code points.  There 
is no one O_CODEPAGE to represent this.  Likewise CCSID
1381 is a PC-data 
mixed byte CCSID built on code page 1115 and 1380.  Again
there is no one 
O_CODEPAGE to represent this. 

When open() was initially introduced the only support was
for O_CODEPAGE 
(and mixed byte encodings were not supported for mapping
purposes).  A few 
releases later open() was enhanced with O_CCSID in order
to provide better 
support for mixed DBCS environments.

Hope this helps,
Bruce




"Brad Stone" <brad@xxxxxxxxxxxx> 
Sent by: rpg400-l-bounces@xxxxxxxxxxxx
10/26/2006 10:21 AM
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Subject
Re: "Conversion Error" when opening Stream File






After looking into this further, it appears we're
specifying to open the file with O_CODEPAGE and
specifying
1381 for that value.

Now, after reading the docs more closely, if you specify
a
code page, it will use that to find a CCSID.  So, the
problem could be that there is no code page 1381 and this
makes an invalid CCSID causing this error.

Now, I've tried to search for a table of code pages and
their related CCSIDs, but not having much luck.  Anyone
know where this beast may be found?

Thanks!

Brad

On Wed, 25 Oct 2006 22:04:29 -0500
 "Brad Stone" <brad@xxxxxxxxxxxx> wrote:

This sort of falls back to the DBCS issues I'm having
with
a client.

Anyhow, we have physical file containing all text, and

a

CCSID of 935.  One field in the PF of type "O".  The

text

contains some DBCS chinese characters.

Now, we're trying to read this file and write it to a
stream file using the IFS APIs. 

For the open API we're specifing a CCSID of 1381.

But, on the open API call, we're getting a "Conversion
error" message and the job fails.  The error actually
ows
the line number of the error as the definition for the
open
API itself instead of the actual call, though.  (odd, I
thought it would have been on the call).

Now, we've succesfully taken this PF and copied it to a
stream file using CPYTOIMPF, and that works fine.  We
specify *STDASCII as the "to" CCSID and it

automatically

creates it as 1381. 

But, we need to use a program to do the conversion to a
stream file because we do maniuplate some of the data

as

we're going through it.

This generic "conversion error" is sort of driving me
nuts,
though, as I can't find any information on it except

"the

CCSID is invalid".

Well, if CPYTOIMPF can do it, shouldn't I be able to?

 :)

Thanks for any assistance with this.
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Bradley V. Stone
BVS.Tools
www.bvstools.com