ttyname(3C) ttyname(3C)
NAME
ttyname, isatty - find name of a terminal
SYNOPSIS
char *ttyname (fildes)
int fildes;
int isatty (fildes)
int fildes;
DESCRIPTION
ttyname returns a pointer to a string containing the null-
terminated pathname of the terminal device associated with
file descriptor fildes.
isatty returns 1 if fildes is associated with a terminal
device; otherwise, it returns 0.
FILES
/dev/*
DIAGNOSTICS
ttyname returns a NULL pointer if fildes does not describe a
terminal device in directory /dev.
BUGS
The return value points to static data whose content is
overwritten by each call.
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