sd_get_uids man page on Fedora

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SD_GET_SEATS(3)			 sd_get_seats		       SD_GET_SEATS(3)

NAME
       sd_get_seats, sd_get_sessions, sd_get_uids - Determine available seats,
       sessions and logged in users

SYNOPSIS
       #include <systemd/sd-login.h>

       int sd_get_seats(char*** seats);

       int sd_get_sessions(char*** sessions);

       int sd_get_uids(char*** sessions);

DESCRIPTION
       sd_get_seats() may be used to determine all currently available local
       seats. Returns a NULL terminated array of seat identifiers. The
       returned array and all strings it references need to be freed with the
       libc free(3) call after use. Note that instead of an empty array NULL
       may be returned and should be considered equivalent to an empty array.

       Similar, sd_get_sessions() may be used to determine all current login
       sessions.

       Similar, sd_get_uids() may be used to determine all Unix users who
       currently have login sessions.

RETURN VALUE
       On success sd_get_seats(), sd_get_sessions() and sd_get_uids() return
       the number of entries in the arrays. On failure, these calls return a
       negative errno-style error code.

NOTES
       The sd_get_seats(), sd_get_sessions() and sd_get_uids() interfaces are
       available as shared library, which can be compiled and linked to with
       the libsystemd-login pkg-config(1) file.

SEE ALSO
       systemd(1), sd-login(7), sd_session_get_seat(3)

AUTHOR
       Lennart Poettering <lennart@poettering.net>
	   Developer

systemd				  05/23/2012		       SD_GET_SEATS(3)
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