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glibc  2.9
tcsetattr.c
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00001 /* Copyright (C) 1993, 1996, 1997, 2002 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003 
00004    The GNU C Library is free software; you can redistribute it and/or
00005    modify it under the terms of the GNU Lesser General Public
00006    License as published by the Free Software Foundation; either
00007    version 2.1 of the License, or (at your option) any later version.
00008 
00009    The GNU C Library is distributed in the hope that it will be useful,
00010    but WITHOUT ANY WARRANTY; without even the implied warranty of
00011    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012    Lesser General Public License for more details.
00013 
00014    You should have received a copy of the GNU Lesser General Public
00015    License along with the GNU C Library; if not, write to the Free
00016    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00017    02111-1307 USA.  */
00018 
00019 #include <errno.h>
00020 #include <termios.h>
00021 #include <sys/ioctl.h>
00022 
00023 /* Set the state of FD to *TERMIOS_P.  */
00024 int
00025 tcsetattr (fd, optional_actions, termios_p)
00026      int fd;
00027      int optional_actions;
00028      const struct termios *termios_p;
00029 {
00030   unsigned long cmd;
00031 
00032   switch (optional_actions)
00033     {
00034     case TCSANOW:
00035       cmd = TCSETS;
00036       break;
00037     case TCSADRAIN:
00038       cmd = TCSETSW;
00039       break;
00040     case TCSAFLUSH:
00041       cmd = TCSETSF;
00042       break;
00043     default:
00044       __set_errno (EINVAL);
00045       return -1;
00046     }
00047 
00048   return __ioctl (fd, cmd, termios_p);
00049 }
00050 libc_hidden_def (tcsetattr)