CTERMID
Section: Linux Programmer's Manual (3)
Updated: April 6, 1993
NAME
ctermid - get controlling terminal name
SYNOPSIS
#include <stdio.h>
char *ctermid(char *s);
DESCRIPTION
ctermid()
returns a string which is the pathname for the current controlling terminal for this
process.
If
s
is
NULL,
a static buffer is used, otherwise
s
points to a buffer used to hold the terminal pathname.
The symbolic constant
L_ctermid
is the maximum number of characters in the returned pathname.
RETURN VALUE
The pointer to the pathname.
CONFORMING TO
POSIX.1
BUGS
The path returned may not uniquely identify the controlling
terminal; it may, for example, be
/dev/tty.
It is not assured that the program can open the terminal.
SEE ALSO
ttyname(3)