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/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <errno.h>
#include <stddef.h>
#include <termios.h>
static int bad_speed (speed_t speed);
/* Set the state of FD to *TERMIOS_P. */
int
tcsetattr (int fd, int optional_actions, const struct termios *termios_p)
{
if (fd < 0)
{
__set_errno (EBADF);
return -1;
}
if (termios_p == NULL)
{
__set_errno (EINVAL);
return -1;
}
switch (optional_actions)
{
case TCSANOW:
case TCSADRAIN:
case TCSAFLUSH:
break;
default:
__set_errno (EINVAL);
return -1;
}
if (bad_speed(termios_p->__ospeed)
|| bad_speed(termios_p->__ispeed == 0
? termios_p->__ospeed : termios_p->__ispeed))
{
__set_errno (EINVAL);
return -1;
}
__set_errno (ENOSYS);
return -1;
}
libc_hidden_def (tcsetattr)
/* Strychnine checking. */
static int
bad_speed (speed_t speed)
{
switch (speed)
{
case B0:
case B50:
case B75:
case B110:
case B134:
case B150:
case B200:
case B300:
case B600:
case B1200:
case B1800:
case B2400:
case B4800:
case B9600:
case B19200:
case B38400:
case B57600:
case B115200:
case B230400:
case B460800:
case B500000:
case B576000:
case B921600:
case B1000000:
case B1152000:
case B1500000:
case B2000000:
case B2500000:
case B3000000:
case B3500000:
case B4000000:
return 0;
default:
return 1;
}
}
stub_warning (tcsetattr)
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