Re: assertion fails on DSPF -- LINUX5250

Hi,

Patches are applied.  If anyone has any problems let me know.

Mike

On Thu, 27 Apr 2000, Scott Klement wrote:

> 
> Yeah...  I understand your plight :)
> 
> The patches that I gave you are (obviously) the easy chars to fix.  To
> make it do the RNQ1251 will certainly be more difficult.  
> 
> However, in the meantime (while you're working on a "real" solution) 
> those patches will make the emulator a lot more stable, since currently
> just about ANY invalid character will crash it.
> 
> Thanx..
> 
>  
> 
> On Thu, 27 Apr 2000, Mike Madore wrote:
> 
> > Hi Scott,
> > 
> > Thanks for the patch.  I have not figured out yet what the ideal solution
> > is.  The problem is that the RQN1251 error seems to be caused when the
> > terminal receives characters which should signal the start of a command,
> > but subsequent bytes are invalid.  A real terminal, I assume, can send
> > back an error to the AS/400, which is why we get RQN1251 on real hardware.
> > 
> > Unfortunately, I don't know if we can send back an error to the AS/400
> > over tn5250, so we may not be able to mimic the behavior of the real
> > hardware exactly.  
> > 
> > Mike Madore
> > 
> > On Thu, 27 Apr 2000, Scott Klement wrote:
> > 
> > > 
> > > Mike/Steve,
> > > 
> > > The attached patches for cursesterm.c and utility.c will fix a number of
> > > the "non-display" character problems.   It doesnt fix them all (by a 
> > > long shot) but it works for many of them (at least, on my system)
> > > 
> > > Perhaps you guys could try them out, and if they're an improvement, add 
> > > them to the CVS source?
> > > 
> > > Thanks...
> > > 
> > > Scott
> > > 
> > > 
> > > On Wed, 26 Apr 2000, Mike Madore wrote:
> > > 
> > > > Hi Steve,
> > > > 
> > > > Thanks for the info.  This is part of a more general problem where we
> > > > don't handle non-display characters correctly.  I need to come up with a
> > > > more generic approach.  Will put this on my to-do list.
> > > > 
> > > > Mike
> > > > 
> > > > On Wed, 26 Apr 2000 stevefx@us.ibm.com wrote:
> > > > 
> > > > > I am having problems with an assertion failing when DSPF is used on a
> > > > > OS/400 development release, it blows up right away. I contacted the 
>owner
> > > > > of the DSPF command to see what had changed, and below is his 
>response.
> > > > > 
> > > > > Thanks!
> > > > > 
> > > > > ------------------------------------------------------------------
> > > > > Steve,
> > > > > 
> > > > > I think I figured what is causing your emulator to fail.  From the 
>trace
> > > > > file it looks like the emulator dies when it tries to read EBCDIC 
>codepoint
> > > > > 0x09.  This character is the result of one of the changes that was 
>made to
> > > > > DSPF/EDTF.  The program is designed to take all characters less than 
>0x40
> > > > > and replace them with a 0x09 for the purpose of being displayed to the
> > > > > screen.  There is a control character at the end of the each file 
>name, in
> > > > > this case "/dev/qsh-stdin-null", that is being replace with a 0x09.
> > > > > Previously the value was 0x16, but we were having problems with the
> > > > > character being displayed so we changed it to 0x09.  It looks like the
> > > > > emulator doesn't know how to handle codepoint 0x09.  Hopefully, this 
>is
> > > > > helpful.  If you have any more questions let me know.
> > > > > ------------------------------------------------------------------
> > > > > 
> > > > > Steve Fox
> > > > > http://w3.rchland.ibm.com/~sjfox (IBM Intranet)
> > > > > http://k-lug.com (Rochester Linux Users Group)
> > > > > 
> > > 
> > 
> > 
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