Originální popis anglicky:
ctermid - get controlling terminal name
Návod, kniha: Linux Programmer's Manual
#include <stdio.h>
char *ctermid(char *s);
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.
The pointer to the pathname.
SVID, Issue 1; POSIX.1
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.
ttyname(3)
