1 /* Copyright (C) 1992-2022 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 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.
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 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18 #include <errno.h>
19 #include <stddef.h>
20 #include <termios.h>
21
22 /* These are defined both in <bits/termios.h> and in <bits/ioctls.h>.
23 They should have the same values, but perhaps not written the same way. */
24 #undef ECHO
25 #undef MDMBUF
26 #undef TOSTOP
27 #undef FLUSHO
28 #undef PENDIN
29 #undef NOFLSH
30 #include <sys/ioctl.h>
31
32
33 /* Set the state of FD to *TERMIOS_P. */
34 int
tcsetattr(int fd,int optional_actions,const struct termios * termios_p)35 tcsetattr (int fd, int optional_actions, const struct termios *termios_p)
36 {
37 struct termios myt;
38
39 if (optional_actions & TCSASOFT)
40 {
41 myt = *termios_p;
42 myt.c_cflag |= CIGNORE;
43 termios_p = &myt;
44 optional_actions &= ~TCSASOFT;
45 }
46
47 switch (optional_actions)
48 {
49 case TCSANOW:
50 return __ioctl (fd, TIOCSETA, termios_p);
51
52 case TCSADRAIN:
53 return __ioctl (fd, TIOCSETAW, termios_p);
54
55 default:
56 return __ioctl (fd, TIOCSETAF, termios_p);
57 }
58 }
59 libc_hidden_def (tcsetattr)
60