[Pkg-shadow-devel] Bug#547079: Bug#547079: login: Should set the iutf8 tty c_iflag if the locale is utf8

Mike Frysinger vapier at gentoo.org
Thu Sep 17 02:05:59 UTC 2009

On Wednesday 16 September 2009 20:25:57 Samuel Thibault wrote:
> ATM, if one runs cat from a VT with a UTF-8 locale, type a non-ascii
> character, backspace, enter, the first byte of the utf-8 encoding
> non-ascii will remain in the stream.  This is because the iutf8 flag is
> not set. getty clears it because it is not supposed to know anything
> beyond ascii. login, however, is responsible for loading the initial
> environment through the pam_env.so PAM module, and then knows which
> locale is configured on the system.  There should be a PAM module (could
> be named pam_tty for instance) which basically does

except that the locale is rarely configured through pam_env, and this doesnt 
work with a non-pam environment.  and throwing another pam module into the mix 
sounds like throwing crap onto the pile rather than addressing it at the right 

this is why the `unicode_start` and `unicode_stop` programs exist -- for 
people to dynamically change the console input mode.  and why the 
keyboard/console font init scripts exist -- to set the defaults.  and why the 
kernel now defaults all consoles to iutf8 on by default.

perhaps you meant to file a bug about agetty not preserving the IUTF8 flag.  
certainly nothing needs to be changed in the shadow package.
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