[thirdparty/glibc.git] / sysdeps / stub / tcsetattr.c

/* Copyright (C) 1991, 1995, 1996 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.

You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB.  If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA.  */

#include <errno.h>
#include <stddef.h>
#include <termios.h>

static int bad_speed __P ((speed_t speed));

/* Set the state of FD to *TERMIOS_P.  */
int
tcsetattr (fd, optional_actions, termios_p)
     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;
}


/* Stricknine checking.  */
static int
bad_speed (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:
      return 0;
    default:
      return 1;
    }
}


stub_warning (tcsetattr)
Commit	Line	Data
c4029823	1	/* Copyright (C) 1991, 1995, 1996 Free Software Foundation, Inc.
28f540f4 RM	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 Library General Public License as
	6	published by the Free Software Foundation; either version 2 of the
	7	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	Library General Public License for more details.
	13
	14	You should have received a copy of the GNU Library General Public
	15	License along with the GNU C Library; see the file COPYING.LIB. If
	16	not, write to the Free Software Foundation, Inc., 675 Mass Ave,
	17	Cambridge, MA 02139, USA. */
	18
28f540f4 RM	19	#include <errno.h>
	20	#include <stddef.h>
	21	#include <termios.h>
	22
c4029823	23	static int bad_speed __P ((speed_t speed));
28f540f4 RM	24
	25	/* Set the state of FD to TERMIOS_P. /
	26	int
c4029823 UD	27	tcsetattr (fd, optional_actions, termios_p)
	28	int fd;
	29	int optional_actions;
	30	const struct termios *termios_p;
28f540f4 RM	31	{
	32	if (fd < 0)
	33	{
c4029823	34	__set_errno (EBADF);
28f540f4 RM	35	return -1;
	36	}
	37	if (termios_p == NULL)
	38	{
c4029823	39	__set_errno (EINVAL);
28f540f4 RM	40	return -1;
	41	}
	42	switch (optional_actions)
	43	{
	44	case TCSANOW:
	45	case TCSADRAIN:
	46	case TCSAFLUSH:
	47	break;
	48	default:
c4029823	49	__set_errno (EINVAL);
28f540f4 RM	50	return -1;
	51	}
	52
	53	if (bad_speed(termios_p->__ospeed) \|\|
	54	bad_speed(termios_p->__ispeed == 0 ?
	55	termios_p->__ospeed : termios_p->__ispeed))
	56	{
c4029823	57	__set_errno (EINVAL);
28f540f4 RM	58	return -1;
	59	}
	60
c4029823	61	__set_errno (ENOSYS);
28f540f4 RM	62	return -1;
	63	}
	64
	65
	66	/* Stricknine checking. */
	67	static int
c4029823 UD	68	bad_speed (speed)
c4029823 UD	69	speed_t speed;
28f540f4 RM	70	{
	71	switch (speed)
	72	{
	73	case B0:
	74	case B50:
	75	case B75:
	76	case B110:
	77	case B134:
	78	case B150:
	79	case B200:
	80	case B300:
	81	case B600:
	82	case B1200:
	83	case B1800:
	84	case B2400:
	85	case B4800:
	86	case B9600:
	87	case B19200:
	88	case B38400:
	89	return 0;
	90	default:
	91	return 1;
	92	}
	93	}
	94
	95
3f33a4ce	96	stub_warning (tcsetattr)