stdio-common/ctermid.c

   1 /* Copyright (C) 1991-2019 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <errno.h>
  19 #include <stdio.h>
  20
  21
  22 /* Return the name of the controlling terminal.
  23    If S is not NULL, the name is copied into it (it should be at
  24    least L_ctermid bytes long), otherwise a static buffer is used.  */
  25 char *
  26 ctermid (char *s)
  27 {
  28   __set_errno (ENOSYS);
  29   return NULL;
  30 }
  31
  32
  33 stub_warning (ctermid)