Back to index

glibc  2.9
tcflow.c
Go to the documentation of this file.
00001 /* Copyright (C) 1991, 1995, 1996, 1997 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 
00022 /* Suspend or restart transmission on FD.  */
00023 int
00024 tcflow (fd, action)
00025      int fd;
00026      int action;
00027 {
00028   if (fd < 0)
00029     {
00030       __set_errno (EBADF);
00031       return -1;
00032     }
00033 
00034   switch (action)
00035     {
00036     case TCOOFF:
00037     case TCOON:
00038     case TCIOFF:
00039     case TCION:
00040       break;
00041 
00042     default:
00043       __set_errno (EINVAL);
00044       return -1;
00045     }
00046 
00047   __set_errno (ENOSYS);
00048   return -1;
00049 }
00050 
00051 
00052 stub_warning (tcflow)
00053 #include <stub-tag.h>