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This commit is contained in:
Roland McGrath
1995-02-18 01:27:10 +00:00
commit 28f540f45b
2263 changed files with 218361 additions and 0 deletions
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186
sysdeps/unix/bsd/tcsetattr.c Normal file
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/* Copyright (C) 1991, 1993 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 <ansidecl.h>
#include <errno.h>
#include <stddef.h>
#include <termios.h>
#include "bsdtty.h"
CONST speed_t __bsd_speeds[] =
{
0,
50,
75,
110,
134,
150,
200,
300,
600,
1200,
1800,
2400,
4800,
9600,
19200,
38400,
};
/* Set the state of FD to *TERMIOS_P. */
int
DEFUN(tcsetattr, (fd, optional_actions, termios_p),
int fd AND int optional_actions AND CONST struct termios *termios_p)
{
struct sgttyb buf;
struct tchars tchars;
struct ltchars ltchars;
int local;
#ifdef TIOCGETX
int extra;
#endif
size_t i;
if (__ioctl(fd, TIOCGETP, &buf) < 0 ||
__ioctl(fd, TIOCGETC, &tchars) < 0 ||
__ioctl(fd, TIOCGLTC, &ltchars) < 0 ||
#ifdef TIOCGETX
__ioctl(fd, TIOCGETX, &extra) < 0 ||
#endif
__ioctl(fd, TIOCLGET, &local) < 0)
return -1;
if (termios_p == NULL)
{
errno = EINVAL;
return -1;
}
switch (optional_actions)
{
case TCSANOW:
break;
case TCSADRAIN:
if (tcdrain(fd) < 0)
return -1;
break;
case TCSAFLUSH:
if (tcflush(fd, TCIFLUSH) < 0)
return -1;
break;
default:
errno = EINVAL;
return -1;
}
buf.sg_ispeed = buf.sg_ospeed = -1;
for (i = 0; i <= sizeof (__bsd_speeds) / sizeof (__bsd_speeds[0]); ++i)
{
if (__bsd_speeds[i] == termios_p->__ispeed)
buf.sg_ispeed = i;
if (__bsd_speeds[i] == termios_p->__ospeed)
buf.sg_ospeed = i;
}
if (buf.sg_ispeed == -1 || buf.sg_ospeed == -1)
{
errno = EINVAL;
return -1;
}
buf.sg_flags &= ~(CBREAK|RAW);
if (!(termios_p->c_lflag & ICANON))
buf.sg_flags |= (termios_p->c_cflag & ISIG) ? CBREAK : RAW;
#ifdef LPASS8
if (termios_p->c_oflag & CS8)
local |= LPASS8;
else
local &= ~LPASS8;
#endif
if (termios_p->c_lflag & _NOFLSH)
local |= LNOFLSH;
else
local &= ~LNOFLSH;
if (termios_p->c_oflag & OPOST)
local &= ~LLITOUT;
else
local |= LLITOUT;
#ifdef TIOCGETX
if (termios_p->c_lflag & ISIG)
extra &= ~NOISIG;
else
extra |= NOISIG;
if (termios_p->c_cflag & CSTOPB)
extra |= STOPB;
else
extra &= ~STOPB;
#endif
if (termios_p->c_iflag & ICRNL)
buf.sg_flags |= CRMOD;
else
buf.sg_flags &= ~CRMOD;
if (termios_p->c_iflag & IXOFF)
buf.sg_flags |= TANDEM;
else
buf.sg_flags &= ~TANDEM;
buf.sg_flags &= ~(ODDP|EVENP);
if (!(termios_p->c_cflag & PARENB))
buf.sg_flags |= ODDP | EVENP;
else if (termios_p->c_cflag & PARODD)
buf.sg_flags |= ODDP;
else
buf.sg_flags |= EVENP;
if (termios_p->c_lflag & _ECHO)
buf.sg_flags |= ECHO;
else
buf.sg_flags &= ~ECHO;
if (termios_p->c_lflag & ECHOE)
local |= LCRTERA;
else
local &= ~LCRTERA;
if (termios_p->c_lflag & ECHOK)
local |= LCRTKIL;
else
local &= ~LCRTKIL;
if (termios_p->c_lflag & _TOSTOP)
local |= LTOSTOP;
else
local &= ~LTOSTOP;
buf.sg_erase = termios_p->c_cc[VERASE];
buf.sg_kill = termios_p->c_cc[VKILL];
tchars.t_eofc = termios_p->c_cc[VEOF];
tchars.t_intrc = termios_p->c_cc[VINTR];
tchars.t_quitc = termios_p->c_cc[VQUIT];
ltchars.t_suspc = termios_p->c_cc[VSUSP];
tchars.t_startc = termios_p->c_cc[VSTART];
tchars.t_stopc = termios_p->c_cc[VSTOP];
if (__ioctl(fd, TIOCSETP, &buf) < 0 ||
__ioctl(fd, TIOCSETC, &tchars) < 0 ||
__ioctl(fd, TIOCSLTC, &ltchars) < 0 ||
#ifdef TIOCGETX
__ioctl(fd, TIOCSETX, &extra) < 0 ||
#endif
__ioctl(fd, TIOCLSET, &local) < 0)
return -1;
return 0;
}