ttyslot(3C)                                                        ttyslot(3C)


NAME
     ttyslot - find the slot in the utmp file of the current user

SYNOPSIS
     #include <stdlib.h>
     int ttyslot (void);

DESCRIPTION
     ttyslot returns the index of the current user's entry in the
     /var/adm/utmp file.  This is accomplished by calling ttyname(3C) to
     determine which device the calling program has associated with the
     standard input, the standard output, or the error output (0, 1 or 2).
     This device name is then searched for in the /var/adm/utmp file.

FILES
     /var/adm/utmp

SEE ALSO
     getut(3C), ttyname(3C)

DIAGNOSTICS
     A value of -1 is returned if an error was encountered while searching for
     the terminal name or if none of the above file descriptors are associated
     with a terminal device.


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