/* Copyright (C) 1991, 1997 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ #include <stdio.h> #include <string.h> /* Return the name of the controlling terminal. If S is not NULL, the name is copied into it (it should be at least L_ctermid bytes long), otherwise a static buffer is used. */ char * ctermid (s) char *s; { static char name[L_ctermid]; if (s == NULL) s = name; return strcpy (s, "/dev/tty"); }