pkttyagent — Textual authentication helper
pkttyagent is used to start a textual
authentication agent for the subject specified by either
--system-bus-name. If neither of these options
are given, the parent process is used.
To get notified when the authentication agent has been
registered either listen to the Changed
D-Bus signal or use
--notify-fd to pass the
number of a file descriptor that has been passed to the
program. This file descriptor will then be closed when the
authentication agent has been successfully registered.
--fallback is used, the textual
authentication agent will not replace an existing authentication
If the authentication agent could not be registered, pkttyagent exits with an exit code of 127. Diagnostic messages are printed on standard error.
If one or more of the options passed are malformed, pkttyagent exits with an exit code of 126. If stdin is a tty, then this manual page is also shown.
If the authentication agent was successfully registered, pkttyagent will keep running, interacting with the user as needed. When its services are no longer needed, the process can be killed.
Since process identifiers can be recycled, the caller should
--process option. The value of
pid-start-time can be determined by
consulting e.g. the
file system depending on the operating system. If only
is passed to the
--process option, then pkttyagent
will look up the start time itself but note that this may be racy.
Written by David Zeuthen
a lot of help from many others.
Please send bug reports to either the distribution or the polkit-devel mailing list, see the link http://lists.freedesktop.org/mailman/listinfo/polkit-devel on how to subscribe.