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478b92f0 UD |
1 | /* Copyright (C) 1991, 1995, 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 | |
41bdb6e2 AJ |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
478b92f0 UD |
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 | |
41bdb6e2 | 12 | Lesser General Public License for more details. |
478b92f0 | 13 | |
41bdb6e2 | 14 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. */ | |
28f540f4 | 17 | |
28f540f4 RM |
18 | #include <errno.h> |
19 | #include <termios.h> | |
20 | ||
21 | /* Suspend or restart transmission on FD. */ | |
22 | int | |
c4029823 UD |
23 | tcflow (fd, action) |
24 | int fd; | |
25 | int action; | |
28f540f4 RM |
26 | { |
27 | if (fd < 0) | |
28 | { | |
c4029823 | 29 | __set_errno (EBADF); |
28f540f4 RM |
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: | |
c4029823 | 42 | __set_errno (EINVAL); |
28f540f4 RM |
43 | return -1; |
44 | } | |
45 | ||
c4029823 | 46 | __set_errno (ENOSYS); |
28f540f4 RM |
47 | return -1; |
48 | } | |
49 | ||
50 | ||
3f33a4ce | 51 | stub_warning (tcflow) |