Purpose of /dev/tty in named
mayer at gis.net
mayer at gis.net
Fri Jan 7 17:57:44 UTC 2005
----- Original Message Follows -----
> If I do a "strings /usr/local/sbin/named", I see a reference to
> "/dev/tty" (along with "/dev/null" and "/dev/random"). This use of
> /dev/tty appears to be coming from the "isc_keyboard_open" function in
> lib/isc/unix/keyboard.c, which is used in lib/isc/entropy.c.
>
> Does "named" really use /dev/tty? In particular, when configuring a
> chroot environment for named, what possible consequences are there is
> a /dev/tty isn't available in the chroot environment?
>
It's used for cryptographic functions. When the random device is not
available it prompts the user for input. /dev/tty cannot be used
normally for named since it's non-interactive.
See lib/isc/include/isc/entropy.h for details.
Danny
> Bill Larson
>
>
More information about the bind-users
mailing list