Baslinux mailing list

["David Moberg" <davidjmoberg AT gmail.com>]

sindi keesan wrote:
> >> Xvesa
> >
> > Set it so that user 0/root owns it, then set the suid bit and allow it
> > to be executed by user. It writes directly to the hardware.
>
> -rwxr-xr-x
>
> Should I change this?  It works now.

No. I was wrong - apparently it writes to /dev/mem so it doesn't need
uid=0 unless /dev/mem is set wrong.

> rxvt:  Failed to open input method, can't open pseudo-tty

I forgot about that. Look at the permissions for /dev/ptyq* and
/dev/ttyq*. They need to allow write and read access for user. chmod
666

> >> Other programs:
> >> zgv (to view photos)
> >
> > Requires suid (root permissions), as all svgalib programs do. Also
> > needs to read the photos.
>
> Working.  -r-s--x--x   -Should I change this?

No, it is properly set.

> >> To print:
> >> gs (and some way to shrink gs to a minimum with just Times New Roman and
> >> no Chinese fonts - this will be a big project.  Start with just gs and see
> >> what it complains about?).
> >
> > Ditto.
>
> It complains of
> svgalib:  Cannot get I/O permissions.

chown root gs
chmod 4777 gs

> > You could send the data directly to the printer (as wp and the netpbm
> > scripts do now). That would eliminate the need for a user account due
> > to lpr's permission problem. An lpr script could accept a postscript
> > file on stdin and use ghostscript to filter it, then send it to the
> > printer.
>
> I can print ps files directly with gs after saving to a file in Abiword
> and Opera, in a script based on gs.  But the same script (printdj) will
> not work to print from them within Opera or Abiword.  Can you check this
> out?  It is a pain to use 'user' instead of 'root'.

Without seeing your script, I have no idea what could be the problem.
Here is an example script:

#!/bin/sh
gs -q -dSAFER -sDEVICE=deskjet -r300x300 \
-sPAPERSIZE=letter -sOutputFile=- - >/dev/lp0

(I'm not sure if /dev/lp0 could be set as sOutputFile instead, but the
above, when modified for my printer, works)

David