59 lines
1.9 KiB
C
59 lines
1.9 KiB
C
/* `struct termios' speed frobnication functions. Linux version.
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Copyright (C) 1991, 92, 93, 95, 96, 97 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <stddef.h>
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#include <errno.h>
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#include <termios.h>
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/* Return the output baud rate stored in *TERMIOS_P. */
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speed_t
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cfgetospeed (termios_p)
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const struct termios *termios_p;
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{
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return termios_p->c_cflag & (CBAUD | CBAUDEX);
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}
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/* Return the input baud rate stored in *TERMIOS_P.
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For Linux there is no difference between input and output speed. */
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strong_alias (cfgetospeed, cfgetispeed);
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/* Set the output baud rate stored in *TERMIOS_P to SPEED. */
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int
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cfsetospeed (termios_p, speed)
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struct termios *termios_p;
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speed_t speed;
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{
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if ((speed & ~CBAUD) != 0
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&& (speed < B57600 || speed > B460800))
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{
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__set_errno (EINVAL);
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return -1;
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}
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termios_p->c_cflag &= ~(CBAUD | CBAUDEX);
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termios_p->c_cflag |= speed;
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return 0;
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}
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/* Set the input baud rate stored in *TERMIOS_P to SPEED.
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For Linux there is no difference between input and output speed. */
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strong_alias (cfsetospeed, cfsetispeed);
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