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CTERMID

Section: Linux Programmer's Manual (3)
Updated: 1993-04-06
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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

SVID, Issue 1; 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.

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