sysdeps/unix/bsd/sun/sunos4/tcsetattr.c

   1 /* Copyright (C) 1993, 1996, 1997 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 not,
  16    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17    Boston, MA 02111-1307, USA.  */
  18
  19 #include <errno.h>
  20 #include <termios.h>
  21 #include <sys/ioctl.h>
  22
  23 /* Set the state of FD to *TERMIOS_P.  */
  24 int
  25 tcsetattr (fd, optional_actions, termios_p)
  26      int fd;
  27      int optional_actions;
  28      const struct termios *termios_p;
  29 {
  30   unsigned long cmd;
  31
  32   switch (optional_actions)
  33     {
  34     case TCSANOW:
  35       cmd = TCSETS;
  36       break;
  37     case TCSADRAIN:
  38       cmd = TCSETSW;
  39       break;
  40     case TCSAFLUSH:
  41       cmd = TCSETSF;
  42       break;
  43     default:
  44       __set_errno (EINVAL);
  45       return -1;
  46     }
  47
  48   return __ioctl (fd, cmd, termios_p);
  49 }