sysdeps/stub/tcflow.c

   1 /* Copyright (C) 1991, 1995 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 Library General Public License as
   6 published by the Free Software Foundation; either version 2 of the
   7 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 Library General Public License for more details.
  13
  14 You should have received a copy of the GNU Library General Public
  15 License along with the GNU C Library; see the file COPYING.LIB.  If
  16 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
  17 Cambridge, MA 02139, USA.  */
  18
  19 #include <ansidecl.h>
  20 #include <errno.h>
  21 #include <termios.h>
  22
  23 /* Suspend or restart transmission on FD.  */
  24 int
  25 DEFUN(tcflow, (fd, action), int fd AND int action)
  26 {
  27   if (fd < 0)
  28     {
  29       errno = EBADF;
  30       return -1;
  31     }
  32
  33   switch (action)
  34     {
  35     case TCOOFF:
  36     case TCOON:
  37     case TCIOFF:
  38     case TCION:
  39       break;
  40
  41     default:
  42       errno = EINVAL;
  43       return -1;
  44     }
  45
  46   errno = ENOSYS;
  47   return -1;
  48 }
  49
  50
  51 stub_warning (tcflow)