355 lines
6.9 KiB
C++
355 lines
6.9 KiB
C++
/* termios.cc: termios for WIN32.
|
|
|
|
Copyright 1996, 1997, 1998, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
|
|
2007, 2008, 2009, 2010, 2011, 2012 Red Hat, Inc.
|
|
|
|
Written by Doug Evans and Steve Chamberlain of Cygnus Support
|
|
dje@cygnus.com, sac@cygnus.com
|
|
|
|
This file is part of Cygwin.
|
|
|
|
This software is a copyrighted work licensed under the terms of the
|
|
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
|
|
details. */
|
|
|
|
#include "winsup.h"
|
|
#include "cygwin/version.h"
|
|
#include <stdlib.h>
|
|
#include "cygerrno.h"
|
|
#include "security.h"
|
|
#include "path.h"
|
|
#include "fhandler.h"
|
|
#include "dtable.h"
|
|
#include "cygheap.h"
|
|
#include "perprocess.h"
|
|
#include "cygtls.h"
|
|
|
|
/* tcsendbreak: POSIX 7.2.2.1 */
|
|
extern "C" int
|
|
tcsendbreak (int fd, int duration)
|
|
{
|
|
int res = -1;
|
|
|
|
cygheap_fdget cfd (fd);
|
|
if (cfd < 0)
|
|
goto out;
|
|
|
|
if (!cfd->is_tty ())
|
|
set_errno (ENOTTY);
|
|
else if ((res = cfd->bg_check (-SIGTTOU)) > bg_eof)
|
|
res = cfd->tcsendbreak (duration);
|
|
|
|
out:
|
|
syscall_printf ("%R = tcsendbreak(%d, %d)", res, fd, duration);
|
|
return res;
|
|
}
|
|
|
|
/* tcdrain: POSIX 7.2.2.1 */
|
|
extern "C" int
|
|
tcdrain (int fd)
|
|
{
|
|
pthread_testcancel ();
|
|
|
|
int res = -1;
|
|
|
|
termios_printf ("tcdrain");
|
|
|
|
cygheap_fdget cfd (fd);
|
|
if (cfd < 0)
|
|
goto out;
|
|
|
|
if (!cfd->is_tty ())
|
|
set_errno (ENOTTY);
|
|
else if ((res = cfd->bg_check (-SIGTTOU)) > bg_eof)
|
|
res = cfd->tcdrain ();
|
|
|
|
out:
|
|
syscall_printf ("%R = tcdrain(%d)", res, fd);
|
|
return res;
|
|
}
|
|
|
|
/* tcflush: POSIX 7.2.2.1 */
|
|
extern "C" int
|
|
tcflush (int fd, int queue)
|
|
{
|
|
int res = -1;
|
|
|
|
cygheap_fdget cfd (fd);
|
|
if (cfd < 0)
|
|
goto out;
|
|
|
|
if (!cfd->is_tty ())
|
|
set_errno (ENOTTY);
|
|
else if (queue != TCIFLUSH && queue != TCOFLUSH && queue != TCIOFLUSH)
|
|
set_errno (EINVAL);
|
|
else if ((res = cfd->bg_check (-SIGTTOU)) > bg_eof)
|
|
res = cfd->tcflush (queue);
|
|
|
|
out:
|
|
termios_printf ("%R = tcflush(%d, %d)", res, fd, queue);
|
|
return res;
|
|
}
|
|
|
|
/* tcflow: POSIX 7.2.2.1 */
|
|
extern "C" int
|
|
tcflow (int fd, int action)
|
|
{
|
|
int res = -1;
|
|
|
|
cygheap_fdget cfd (fd);
|
|
if (cfd < 0)
|
|
goto out;
|
|
|
|
if (!cfd->is_tty ())
|
|
set_errno (ENOTTY);
|
|
else if ((res = cfd->bg_check (-SIGTTOU)) > bg_eof)
|
|
res = cfd->tcflow (action);
|
|
|
|
out:
|
|
syscall_printf ("%R = tcflow(%d, %d)", res, fd, action);
|
|
return res;
|
|
}
|
|
|
|
/* tcsetattr: POSIX96 7.2.1.1 */
|
|
extern "C" int
|
|
tcsetattr (int fd, int a, const struct termios *t)
|
|
{
|
|
int res;
|
|
t = __tonew_termios (t);
|
|
int e = get_errno ();
|
|
|
|
while (1)
|
|
{
|
|
res = -1;
|
|
cygheap_fdget cfd (fd);
|
|
if (cfd < 0)
|
|
{
|
|
e = get_errno ();
|
|
break;
|
|
}
|
|
|
|
if (!cfd->is_tty ())
|
|
{
|
|
e = ENOTTY;
|
|
break;
|
|
}
|
|
|
|
res = cfd->bg_check (-SIGTTOU);
|
|
|
|
switch (res)
|
|
{
|
|
case bg_eof:
|
|
e = get_errno ();
|
|
break;
|
|
case bg_ok:
|
|
if (cfd.isopen ())
|
|
res = cfd->tcsetattr (a, t);
|
|
e = get_errno ();
|
|
break;
|
|
case bg_signalled:
|
|
if (_my_tls.call_signal_handler ())
|
|
continue;
|
|
res = -1;
|
|
/* fall through intentionally */
|
|
default:
|
|
e = get_errno ();
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
|
|
set_errno (e);
|
|
termios_printf ("iflag %p, oflag %p, cflag %p, lflag %p, VMIN %d, VTIME %d",
|
|
t->c_iflag, t->c_oflag, t->c_cflag, t->c_lflag, t->c_cc[VMIN],
|
|
t->c_cc[VTIME]);
|
|
termios_printf ("%R = tcsetattr(%d, %d, %x)", res, fd, a, t);
|
|
return res;
|
|
}
|
|
|
|
/* tcgetattr: POSIX 7.2.1.1 */
|
|
extern "C" int
|
|
tcgetattr (int fd, struct termios *in_t)
|
|
{
|
|
int res = -1;
|
|
struct termios *t = __makenew_termios (in_t);
|
|
|
|
cygheap_fdget cfd (fd);
|
|
if (cfd < 0)
|
|
/* saw an error */;
|
|
else if (!cfd->is_tty ())
|
|
set_errno (ENOTTY);
|
|
else if ((res = cfd->tcgetattr (t)) == 0)
|
|
__toapp_termios (in_t, t);
|
|
|
|
if (res)
|
|
termios_printf ("%R = tcgetattr(%d, %p)", res, fd, in_t);
|
|
else
|
|
termios_printf ("iflag %x, oflag %x, cflag %x, lflag %x, VMIN %d, VTIME %d",
|
|
t->c_iflag, t->c_oflag, t->c_cflag, t->c_lflag, t->c_cc[VMIN],
|
|
t->c_cc[VTIME]);
|
|
|
|
return res;
|
|
}
|
|
|
|
/* tcgetpgrp: POSIX 7.2.3.1 */
|
|
extern "C" int
|
|
tcgetpgrp (int fd)
|
|
{
|
|
int res;
|
|
|
|
cygheap_fdget cfd (fd);
|
|
if (cfd < 0)
|
|
res = -1;
|
|
else
|
|
res = cfd->tcgetpgrp ();
|
|
|
|
termios_printf ("%R = tcgetpgrp(%d)", res, fd);
|
|
return res;
|
|
}
|
|
|
|
extern "C" pid_t
|
|
tcgetsid (int fd)
|
|
{
|
|
int res;
|
|
|
|
cygheap_fdget cfd (fd);
|
|
if (cfd < 0)
|
|
res = -1;
|
|
else
|
|
res = cfd->tcgetsid ();
|
|
|
|
termios_printf ("%R = tcgetsid(%d)", res, fd);
|
|
return res;
|
|
}
|
|
|
|
/* tcsetpgrp: POSIX 7.2.4.1 */
|
|
extern "C" int
|
|
tcsetpgrp (int fd, pid_t pgid)
|
|
{
|
|
int res = -1;
|
|
|
|
cygheap_fdget cfd (fd);
|
|
if (cfd < 0)
|
|
/* saw an error */;
|
|
else if (!cfd->is_tty ())
|
|
set_errno (ENOTTY);
|
|
else
|
|
res = cfd->tcsetpgrp (pgid);
|
|
|
|
termios_printf ("%R = tcsetpgrp(%d, %d)", res, fd, pgid);
|
|
return res;
|
|
}
|
|
|
|
/* NIST PCTS requires not macro-only implementation */
|
|
#undef cfgetospeed
|
|
#undef cfgetispeed
|
|
#undef cfsetospeed
|
|
#undef cfsetispeed
|
|
|
|
/* cfgetospeed: POSIX96 7.1.3.1 */
|
|
extern "C" speed_t
|
|
cfgetospeed (const struct termios *tp)
|
|
{
|
|
return __tonew_termios (tp)->c_ospeed;
|
|
}
|
|
|
|
/* cfgetispeed: POSIX96 7.1.3.1 */
|
|
extern "C" speed_t
|
|
cfgetispeed (const struct termios *tp)
|
|
{
|
|
return __tonew_termios (tp)->c_ispeed;
|
|
}
|
|
|
|
static inline int
|
|
setspeed (speed_t &set_speed, speed_t from_speed)
|
|
{
|
|
int res;
|
|
switch (from_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 B128000:
|
|
case B230400:
|
|
case B256000:
|
|
case B460800:
|
|
case B500000:
|
|
case B576000:
|
|
case B921600:
|
|
case B1000000:
|
|
case B1152000:
|
|
case B1500000:
|
|
case B2000000:
|
|
case B2500000:
|
|
case B3000000:
|
|
set_speed = from_speed;
|
|
res = 0;
|
|
break;
|
|
default:
|
|
set_errno (EINVAL);
|
|
res = -1;
|
|
break;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
/* cfsetospeed: POSIX96 7.1.3.1 */
|
|
extern "C" int
|
|
cfsetospeed (struct termios *in_tp, speed_t speed)
|
|
{
|
|
struct termios *tp = __tonew_termios (in_tp);
|
|
int res = setspeed (tp->c_ospeed, speed);
|
|
__toapp_termios (in_tp, tp);
|
|
return res;
|
|
}
|
|
|
|
/* cfsetispeed: POSIX96 7.1.3.1 */
|
|
extern "C" int
|
|
cfsetispeed (struct termios *in_tp, speed_t speed)
|
|
{
|
|
struct termios *tp = __tonew_termios (in_tp);
|
|
int res = setspeed (tp->c_ispeed, speed);
|
|
__toapp_termios (in_tp, tp);
|
|
return res;
|
|
}
|
|
|
|
/* cfsetspeed: 4.4BSD */
|
|
extern "C" int
|
|
cfsetspeed (struct termios *in_tp, speed_t speed)
|
|
{
|
|
struct termios *tp = __tonew_termios (in_tp);
|
|
int res;
|
|
/* errors come only from unsupported baud rates, so setspeed() would return
|
|
identical results in both calls */
|
|
if ((res = setspeed (tp->c_ospeed, speed)) == 0)
|
|
setspeed (tp->c_ispeed, speed);
|
|
__toapp_termios (in_tp, tp);
|
|
return res;
|
|
}
|
|
|
|
extern "C" void
|
|
cfmakeraw(struct termios *tp)
|
|
{
|
|
tp->c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP
|
|
| INLCR | IGNCR | ICRNL | IXON);
|
|
tp->c_oflag &= ~OPOST;
|
|
tp->c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN);
|
|
tp->c_cflag &= ~(CSIZE | PARENB);
|
|
tp->c_cflag |= CS8;
|
|
}
|