TTYSLOT(3,L)                AIX Technical Reference                TTYSLOT(3,L)



-------------------------------------------------------------------------------
ttyslot



PURPOSE

Finds the slot in the utmp file for the current user.

LIBRARY

Standard C Library (libc.a)

SYNTAX

int ttyslot ( )

DESCRIPTION

The ttyslot subroutine returns the index of the current user's entry in the
/etc/utmp file.  The ttyslot subroutine scans the /etc/utmp file for the name
of the terminal associated with the standard input, the standard output, or the
error output (0, 1, or 2).

The ttyslot subroutine returns -1 if an error was encountered while searching
for the terminal name, or if none of the first three file descriptors (0, 1,
and 2) is associated with a terminal device.

Warning:  If the Transparent Computing Facility is installed, the process
calling ttyslot must have its <LOCAL> file system equal to the <LOCAL> file
system of the cluster site where the terminal associated with standard input,
standard output or standard error is physically attached.  Otherwise, incorrect
results may be produced.

FILES

/etc/inittab
/etc/utmp

RELATED INFORMATION

In this book:  "getut: getutent, getutid, getutline, pututline, setutent,
endutent, utmpname" and "ttyname, isatty, fullttyname."












Processed November 7, 1990       TTYSLOT(3,L)                                 1