PKTTYAGENT(1) pkttyagent PKTTYAGENT(1)
NAME
pkttyagent - Textual authentication helper
SYNOPSIS
pkttyagent [--version] [--help]
pkttyagent [--process { pid | pid,pid-start-time } | --system-bus-name busname] [--notify-fd fd] [--fallback]
DESCRIPTION
pkttyagent is used to start a textual authentication agent for the subject specified by either --process or
--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.
If --fallback is used, the textual authentication agent will not replace an existing authentication agent.
RETURN VALUE
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.
NOTES
Since process identifiers can be recycled, the caller should always use pid,pid-start-time when using the
--process option. The value of pid-start-time can be determined by consulting e.g. the proc(5) file system
depending on the operating system. If only pid is passed to the --process option, then pkttyagent will look up
the start time itself but note that this may be racy.
AUTHOR
Written by David Zeuthen <[email protected]> with a lot of help from many others.
BUGS
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.
SEE ALSO
polkit(8), polkitd(8), pkaction(1), pkcheck(1), pkexec(1)
polkit May 2009 PKTTYAGENT(1)
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