Re: [MiNT] stairs reloaded

["Helmut Karlowski" <helmut.karlowski@ish.de>]

Vincent Rivière, 23.02.2013 17:23:24:

> On 17/02/2013 20:32, Helmut Karlowski wrote:
> > In this case a simple
> >
> > cat <file> > /dev/ttys<n>
> >
> > where <n> is the serial device-number should show the crnl-translation.
>
> I quickly tried with ARAnyM. Since it does not support the serial port,  
> I used the parallel one instead: /dev/centr

No surprise, very likey /dev/centr is not a tty-device, and tty_write not  
used.

> The problem is that ARAnyM does not open the output file in binary mode,  
> so it defaults to text mode. And ARAnyM on Windows use Cygwin. Depending  
> on the output directory, Cywin enables or not its own LF->CR/LF  
> conversion. You can check with the mount command on Cygwin.

This may be the cause why I sometimes have patch-files with crnl,  
sometimes not when saving attachments ..

> Anyway, this problem can't affect ARAnyM on Linux, or other Atari  
> machines.
>
> I will have to make a FreeMiNT setup for Hatari in order to test the  
> serial port.
>
> BTW, Helmut, on which machine did you encounter the bug? Falcon?

TT. But if you look at the code in tty_write it is quite obvious that in  
almost all cases where a mint-domain-process uses tty_write  
crnl-translation will be done. This cannot work.

There's also always been the problem setting crnl-translation via stty:

129|/home/root}stty -a
speed 0 baud; rows 96; columns 102; line = 1;
intr = ^C; quit = ^\; erase = ^H; kill = ^U; eof = ^D; eol = ^M; start =  
^Q; stop = ^S; susp = ^Z;
dsusp = ^Y; rprnt = ^R; werase = ^W; lnext = ^V; flush = ^O; min = 1; time  
= 0;
-parenb -parodd cs8 -hupcl -cstopb cread clocal -crtscts
-ignbrk -brkint ignpar -parmrk -inpck -istrip -inlcr -igncr icrnl ixon  
-ixoff -ixany
opost -onlcr
isig icanon iexten echo echoe echok -echonl -noflsh -tostop echoctl
130|/home/root}stty onlcr
stty: standard input: unable to perform all requested operations
131|/home/root}stty -onlcr
132|/home/root}

The last gives no error.

If this issue is fixed, I'd suggest to do the whole thing and implement  
that onlcr-thing.

On cygwin/mintty I get:

373/usr/src/ksh/pdksh#stty -a
speed 38400 baud; rows 71; columns 150; line = 0;
intr = ^C; quit = ^\; erase = ^?; kill = ^U; eof = ^D; eol = <undef>; eol2  
= <undef>; swtch = ^Z; start = ^Q; stop = ^S; susp = ^Z; rprnt = ^R;
werase = ^W; lnext = ^V; flush = ^O; min = 1; time = 0;
-parenb -parodd cs8 -hupcl -cstopb cread -clocal -crtscts
-ignbrk brkint -ignpar -parmrk -inpck -istrip -inlcr -igncr icrnl ixon  
-ixoff -iuclc ixany imaxbel
opost -olcuc -ocrnl onlcr -onocr -onlret -ofill -ofdel nl0 cr0 tab0 bs0  
vt0 ff0
isig icanon iexten echo echoe echok -echonl -noflsh -tostop echoctl echoke
374/usr/src/ksh/pdksh#stty onlcr
375/usr/src/ksh/pdksh#stty -onlcr
376/usr/src/ksh/pdksh#stty onlcr


--
Helmut Karlowski