source: trunk/kernel/ksh/ksh_set_tty.c @ 1

Last change on this file since 1 was 1, checked in by alain, 5 years ago

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1/*
2   This file is part of MutekP.
3 
4   MutekP is free software; you can redistribute it and/or modify it
5   under the terms of the GNU General Public License as published by
6   the Free Software Foundation; either version 2 of the License, or
7   (at your option) any later version.
8 
9   MutekP is distributed in the hope that it will be useful, but
10   WITHOUT ANY WARRANTY; without even the implied warranty of
11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12   General Public License for more details.
13 
14   You should have received a copy of the GNU General Public License
15   along with MutekP; if not, write to the Free Software Foundation,
16   Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
17 
18   UPMC / LIP6 / SOC (c) 2008
19   Copyright Ghassan Almaless <ghassan.almaless@gmail.com>
20*/
21
22#include <kminiShell.h>
23#include <system.h>
24#include <device.h>
25
26error_t ksh_set_tty_func(void *param)
27{
28  ms_args_t *args ;
29  sint_t id = -1;
30
31  args  = (ms_args_t *) param;
32
33  if(args->argc == 2)
34    id = atoi(args->argv[1]);
35 
36  if(id == -1)
37  {
38    ksh_print("%s: Unknown TTY id\n", __FUNCTION__);
39    return EINVAL;
40  }
41
42  if((id >= TTY_DEV_NR) || (ttys_tbl[id] == NULL))
43  {
44    ksh_print("%s: Invalid TTY id: %d\n", __FUNCTION__, id);
45    return EINVAL;
46  }
47
48  ksh_tty.id = id;
49  return 0;
50}
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