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* cygheap.h (init_cygheap::ctty_on_hold): Remove conditionalized variable.

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* dcrt0.cc (do_exit): Remove code which handled CYGWIN=tty style ttys.
* devices.in: Remove "/dev/ttym".
* dtable.cc: Rename tty to pty where appropriate throughout.
(dtable::stdio_init): Use new t->is_console rather than using now-deleted hwnd
element in tty structure.
(dtable::init_std_file_from_handle): Remove code which handled CYGWIN=tty style
ttys.
(fh_alloc): Ditto.
* fhandler.h: Rename tty to pty where appropriate.
(fhandler_pty_common): Delete output_done_event, ioctl_request_event,
ioctl_done_event.
(fhandler_pty_master::setup): Delete argument.
(fhandler_tty_master): Delete.
(fhandler_union): Delete __tty_master.
* fhandler_console.cc (use_tty): Delete.
(fhandler_console::get_tty_stuff): Set is_console to true rather than calling
sethwnd.
(fhandler_console::send_winch_maybe): Remove CYGWIN=tty considerations.
(fhandler_console::input_tcsetattr): Ditto.
* fhandler_termios.cc (fhandler_termios::tcsetpgrp): Use new t->is_console
rather than using now-deleted hwnd element in tty structure.
* fhandler_tty.cc: Rename tty to pty where appropriate throughout.
(tty_master): Delete.
(process_input): Ditto.
(process_output): Ditto.
(process_ioctl): Ditto.
(fhandler_tty_master::*): Ditto.
(fhandler_pty_master::process_slave_output): Remove CYGWIN=tty considerations.
(fhandler_pty_slave::open): Ditto for *_done_event.
(fhandler_pty_slave::write): Ditto.
(fhandler_pty_slave::ioctl): Ditto.
(fhandler_pty_slave::fch_open_handles): Ditto.
(fhandler_pty_slave::fch_set_sd): Ditto.
(fhandler_pty_slave::fch_close_handles): Ditto.
(fhandler_pty_common::close): Ditto.
(fhandler_pty_master::setup): Ditto.  Remove now-unneeded ispty parameter.
(fhandler_pty_master::open): Reflect argument removal for tty::allocate.
* select.cc: Rename tty to pty where appropriate throughout.
* sigproc.cc (proc_subproc): Remove CYGWIN=tty considerations.
* tty.cc (ttyslot): Accommodate CYGWIN=tty removal.
(tty_list::init_session): Ditto.
(tty_list::attach): Ditto.
(tty::create_master): Delete.
(tty_list::terminate): Ditto.
(tty_list::allocate): Delete "with_console" parameter.  Remove CYGWIN=tty
considerations.
(tty::init): Set is_console = false.  Use 'false' for was_opened since it is a
boolean.
* tty.h (*_{DONE,REQUEST}_EVENT): Delete.
(tty_min::is_console): Declare new field which replaces hwnd.
(tty_min::gethwnd): Delete.
(tty_min::sethwnd): Ditto.
(tty_list::allocate): Delete parameter.
(tty_list::terminate): Delete declaration.
* include/sys/cygwin.h (PID_USETTY): Redefine to PID_UNUSED1 and change comment
to reflect its availability.
This commit is contained in:
Christopher Faylor
2011-06-14 21:48:43 +00:00
parent d0009604ad
commit c75b5b2d13
15 changed files with 202 additions and 596 deletions
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411
winsup/cygwin/fhandler_tty.cc
View File

@@ -42,60 +42,12 @@ struct pipe_reply {
DWORD error;
};
/* tty master stuff */
fhandler_tty_master NO_COPY *tty_master;
static void WINAPI process_input (void *) __attribute__((noreturn)); // Input queue thread
static void WINAPI process_output (void *) __attribute__((noreturn)); // Output queue thread
static void WINAPI process_ioctl (void *) __attribute__((noreturn)); // Ioctl requests thread
fhandler_tty_master::fhandler_tty_master ()
: fhandler_pty_master (), console (NULL)
{
}
int
fhandler_tty_slave::get_unit ()
fhandler_pty_slave::get_unit ()
{
return dev ().get_minor ();
}
void
fhandler_tty_master::set_winsize (bool sendSIGWINCH)
{
winsize w;
console->ioctl (TIOCGWINSZ, &w);
get_ttyp ()->winsize = w;
if (sendSIGWINCH)
tc ()->kill_pgrp (SIGWINCH);
}
int
fhandler_tty_master::init ()
{
termios_printf ("Creating master for tty%d", get_unit ());
if (init_console ())
{
termios_printf ("can't create fhandler");
return -1;
}
if (!setup (false))
return 1;
set_winsize (false);
set_close_on_exec (true);
new cygthread (process_input, cygself, "ttyin");
new cygthread (process_ioctl, cygself, "ttyioctl");
new cygthread (process_output, cygself, "ttyout");
return 0;
}
#ifdef DEBUGGING
static class mutex_stack
{
@@ -109,17 +61,17 @@ static int osi;
#endif /*DEBUGGING*/
DWORD
fhandler_tty_common::__acquire_output_mutex (const char *fn, int ln,
fhandler_pty_common::__acquire_output_mutex (const char *fn, int ln,
DWORD ms)
{
if (strace.active ())
strace.prntf (_STRACE_TERMIOS, fn, "(%d): tty output_mutex (%p): waiting %d ms", ln, output_mutex, ms);
strace.prntf (_STRACE_TERMIOS, fn, "(%d): pty output_mutex (%p): waiting %d ms", ln, output_mutex, ms);
DWORD res = WaitForSingleObject (output_mutex, ms);
if (res == WAIT_OBJECT_0)
{
#ifndef DEBUGGING
if (strace.active ())
strace.prntf (_STRACE_TERMIOS, fn, "(%d): tty output_mutex: acquired", ln, res);
strace.prntf (_STRACE_TERMIOS, fn, "(%d): pty output_mutex: acquired", ln, res);
#else
ostack[osi].fn = fn;
ostack[osi].ln = ln;
@@ -132,13 +84,13 @@ fhandler_tty_common::__acquire_output_mutex (const char *fn, int ln,
}
void
fhandler_tty_common::__release_output_mutex (const char *fn, int ln)
fhandler_pty_common::__release_output_mutex (const char *fn, int ln)
{
if (ReleaseMutex (output_mutex))
{
#ifndef DEBUGGING
if (strace.active ())
strace.prntf (_STRACE_TERMIOS, fn, "(%d): tty output_mutex(%p) released", ln, output_mutex);
strace.prntf (_STRACE_TERMIOS, fn, "(%d): pty output_mutex(%p) released", ln, output_mutex);
#else
if (osi > 0)
osi--;
@@ -156,7 +108,7 @@ fhandler_tty_common::__release_output_mutex (const char *fn, int ln)
#endif
}
/* Process tty input. */
/* Process pty input. */
void
fhandler_pty_master::doecho (const void *str, DWORD len)
@@ -164,7 +116,6 @@ fhandler_pty_master::doecho (const void *str, DWORD len)
acquire_output_mutex (INFINITE);
if (!WriteFile (to_master, str, len, &len, NULL))
termios_printf ("Write to %p failed, %E", to_master);
// WaitForSingleObject (output_done_event, INFINITE);
release_output_mutex ();
}
@@ -216,21 +167,6 @@ fhandler_pty_master::accept_input ()
return ret;
}
static void WINAPI
process_input (void *)
{
char rawbuf[INP_BUFFER_SIZE];
while (1)
{
size_t nraw = INP_BUFFER_SIZE;
tty_master->console->read ((void *) rawbuf, nraw);
if (tty_master->line_edit (rawbuf, nraw, tty_master->get_ttyp ()->ti)
== line_edit_signalled)
tty_master->console->eat_readahead (-1);
}
}
bool
fhandler_pty_master::hit_eof ()
{
@@ -245,7 +181,7 @@ fhandler_pty_master::hit_eof ()
return 0;
}
/* Process tty output requests */
/* Process pty output requests */
int
fhandler_pty_master::process_slave_output (char *buf, size_t len, int pktmode_on)
@@ -311,12 +247,6 @@ fhandler_pty_master::process_slave_output (char *buf, size_t len, int pktmode_on
if ((get_ttyp ()->ti.c_lflag & FLUSHO || !buf))
goto out;
if (is_tty_master ())
{
Sleep (10);
continue;
}
if (is_nonblocking ())
{
set_errno (EAGAIN);
@@ -342,8 +272,6 @@ fhandler_pty_master::process_slave_output (char *buf, size_t len, int pktmode_on
termios_printf ("bytes read %u", n);
get_ttyp ()->write_error = 0;
if (output_done_event != NULL)
SetEvent (output_done_event);
if (get_ttyp ()->ti.c_lflag & FLUSHO || !buf)
continue;
@@ -424,69 +352,23 @@ out:
return rc;
}
static void WINAPI
process_output (void *)
{
char buf[OUT_BUFFER_SIZE * 2];
/* pty slave stuff */
for (;;)
{
int n = tty_master->process_slave_output (buf, OUT_BUFFER_SIZE, 0);
if (n > 0)
{
n = tty_master->console->write ((void *) buf, (size_t) n);
tty_master->get_ttyp ()->write_error = n == -1 ? get_errno () : 0;
}
else
{
if (n < 0)
termios_printf ("ReadFile %E");
ExitThread (0);
}
}
}
/* Process tty ioctl requests */
static void WINAPI
process_ioctl (void *)
{
while (1)
{
WaitForSingleObject (tty_master->ioctl_request_event, INFINITE);
termios_printf ("ioctl() request");
tty *ttyp = tty_master->get_ttyp ();
ttyp->ioctl_retval =
tty_master->console->ioctl (ttyp->cmd,
(ttyp->cmd == KDSKBMETA)
? (void *) ttyp->arg.value
: (void *) &ttyp->arg);
SetEvent (tty_master->ioctl_done_event);
}
}
/**********************************************************************/
/* Tty slave stuff */
fhandler_tty_slave::fhandler_tty_slave (int unit)
: fhandler_tty_common (), inuse (NULL)
fhandler_pty_slave::fhandler_pty_slave (int unit)
: fhandler_pty_common (), inuse (NULL)
{
if (unit >= 0)
dev ().parse (DEV_TTYS_MAJOR, unit);
}
/* FIXME: This function needs to close handles when it has
a failing condition. */
int
fhandler_tty_slave::open (int flags, mode_t)
fhandler_pty_slave::open (int flags, mode_t)
{
HANDLE tty_owner, from_master_local, to_master_local;
HANDLE pty_owner, from_master_local, to_master_local;
HANDLE *handles[] =
{
&from_master_local, &input_available_event, &input_mutex, &inuse,
&ioctl_done_event, &ioctl_request_event, &output_done_event,
&output_mutex, &to_master_local, &tty_owner,
&output_mutex, &to_master_local, &pty_owner,
NULL
};
@@ -502,14 +384,6 @@ fhandler_tty_slave::open (int flags, mode_t)
/* Create synchronisation events */
char buf[MAX_PATH];
/* output_done_event may or may not exist. It will exist if the tty
was opened by fhandler_tty_master::init, normally called at
startup if use_tty is non-zero. It will not exist if this is a
pty opened by fhandler_pty_master::open. In the former case, tty
output is handled by a separate thread which controls output. */
shared_name (buf, OUTPUT_DONE_EVENT, get_unit ());
output_done_event = OpenEvent (MAXIMUM_ALLOWED, TRUE, buf);
const char *errmsg = NULL;
if (!(output_mutex = get_ttyp ()->open_output_mutex (MAXIMUM_ALLOWED)))
@@ -529,13 +403,6 @@ fhandler_tty_slave::open (int flags, mode_t)
goto err;
}
/* The ioctl events may or may not exist. See output_done_event,
above. */
shared_name (buf, IOCTL_REQUEST_EVENT, get_unit ());
ioctl_request_event = OpenEvent (MAXIMUM_ALLOWED, TRUE, buf);
shared_name (buf, IOCTL_DONE_EVENT, get_unit ());
ioctl_done_event = OpenEvent (MAXIMUM_ALLOWED, TRUE, buf);
/* FIXME: Needs a method to eliminate tty races */
{
/* Create security attribute. Default permissions are 0620. */
@@ -555,7 +422,7 @@ fhandler_tty_slave::open (int flags, mode_t)
if (!get_ttyp ()->from_master || !get_ttyp ()->to_master)
{
errmsg = "tty handles have been closed";
errmsg = "pty handles have been closed";
set_errno (EACCES);
goto err_no_errno;
}
@@ -578,23 +445,23 @@ fhandler_tty_slave::open (int flags, mode_t)
{
/* This is the most common case, just calling openpty. */
termios_printf ("dup handles within myself.");
tty_owner = GetCurrentProcess ();
pty_owner = GetCurrentProcess ();
}
else
{
pinfo p (get_ttyp ()->master_pid);
if (!p)
termios_printf ("*** couldn't find tty master");
termios_printf ("*** couldn't find pty master");
else
{
tty_owner = OpenProcess (PROCESS_DUP_HANDLE, FALSE, p->dwProcessId);
if (tty_owner)
pty_owner = OpenProcess (PROCESS_DUP_HANDLE, FALSE, p->dwProcessId);
if (pty_owner)
termios_printf ("dup handles directly since I'm allmighty.");
}
}
if (tty_owner)
if (pty_owner)
{
if (!DuplicateHandle (tty_owner, get_ttyp ()->from_master,
if (!DuplicateHandle (pty_owner, get_ttyp ()->from_master,
GetCurrentProcess (), &from_master_local, 0, TRUE,
DUPLICATE_SAME_ACCESS))
{
@@ -603,15 +470,15 @@ fhandler_tty_slave::open (int flags, mode_t)
__seterrno ();
goto err_no_msg;
}
if (!DuplicateHandle (tty_owner, get_ttyp ()->to_master,
if (!DuplicateHandle (pty_owner, get_ttyp ()->to_master,
GetCurrentProcess (), &to_master_local, 0, TRUE,
DUPLICATE_SAME_ACCESS))
{
errmsg = "can't duplicate output, %E";
goto err;
}
if (tty_owner != GetCurrentProcess ())
CloseHandle (tty_owner);
if (pty_owner != GetCurrentProcess ())
CloseHandle (pty_owner);
}
else
{
@@ -619,7 +486,7 @@ fhandler_tty_slave::open (int flags, mode_t)
pipe_reply repl;
DWORD len;
__small_sprintf (buf, "\\\\.\\pipe\\cygwin-%S-tty%d-master-ctl",
__small_sprintf (buf, "\\\\.\\pipe\\cygwin-%S-pty%d-master-ctl",
&installation_key, get_unit ());
termios_printf ("dup handles via master control pipe %s", buf);
if (!CallNamedPipe (buf, &req, sizeof req, &repl, sizeof repl,
@@ -640,9 +507,9 @@ fhandler_tty_slave::open (int flags, mode_t)
VerifyHandle (from_master_local);
VerifyHandle (to_master_local);
termios_printf ("duplicated from_master %p->%p from tty_owner",
termios_printf ("duplicated from_master %p->%p from pty_owner",
get_ttyp ()->from_master, from_master_local);
termios_printf ("duplicated to_master %p->%p from tty_owner",
termios_printf ("duplicated to_master %p->%p from pty_owner",
get_ttyp ()->to_master, to_master_local);
set_io_handle (from_master_local);
@@ -650,8 +517,7 @@ fhandler_tty_slave::open (int flags, mode_t)
set_close_on_exec (!!(flags & O_CLOEXEC));
set_open_status ();
if (cygheap->manage_console_count ("fhandler_tty_slave::open", 1) == 1
&& !output_done_event)
if (cygheap->manage_console_count ("fhandler_pty_slave::open", 1) == 1)
fhandler_console::need_invisible ();
return 1;
@@ -667,37 +533,37 @@ err_no_msg:
}
void
fhandler_tty_slave::open_setup (int flags)
fhandler_pty_slave::open_setup (int flags)
{
set_flags ((flags & ~O_TEXT) | O_BINARY);
myself->set_ctty (get_ttyp (), flags, this);
cygheap->manage_console_count ("fhandler_tty_slave::setup", 1);
cygheap->manage_console_count ("fhandler_pty_slave::setup", 1);
report_tty_counts (this, "opened", "");
}
void
fhandler_tty_slave::cleanup ()
fhandler_pty_slave::cleanup ()
{
/* This used to always call fhandler_tty_common::close when hExeced but that
caused multiple closes of the handles associated with this tty. Since
/* This used to always call fhandler_pty_common::close when hExeced but that
caused multiple closes of the handles associated with this pty. Since
close_all_files is not called until after the cygwin process has synced
or before a non-cygwin process has exited, it should be safe to just
close this normally. cgf 2006-05-20 */
cygheap->manage_console_count ("fhandler_tty_slave::close", -1);
cygheap->manage_console_count ("fhandler_pty_slave::close", -1);
report_tty_counts (this, "closed", "");
}
int
fhandler_tty_slave::close ()
fhandler_pty_slave::close ()
{
termios_printf ("closing last open %s handle", ttyname ());
if (inuse && !CloseHandle (inuse))
termios_printf ("CloseHandle (inuse), %E");
return fhandler_tty_common::close ();
return fhandler_pty_common::close ();
}
int
fhandler_tty_slave::init (HANDLE h, DWORD a, mode_t)
fhandler_pty_slave::init (HANDLE h, DWORD a, mode_t)
{
int flags = 0;
@@ -715,12 +581,12 @@ fhandler_tty_slave::init (HANDLE h, DWORD a, mode_t)
{
/* This only occurs when called from dtable::init_std_file_from_handle
We have been started from a non-Cygwin process. So we should become
tty process group leader.
pty process group leader.
TODO: Investigate how SIGTTIN should be handled with pure-windows
programs. */
pinfo p (tc ()->getpgid ());
/* We should only grab this when the process group owner for this
tty is a non-cygwin process or we've been started directly
pty is a non-cygwin process or we've been started directly
from a non-Cygwin process with no Cygwin ancestry. */
if (!p || ISSTATE (p, PID_NOTCYGWIN))
{
@@ -737,7 +603,7 @@ fhandler_tty_slave::init (HANDLE h, DWORD a, mode_t)
}
ssize_t __stdcall
fhandler_tty_slave::write (const void *ptr, size_t len)
fhandler_pty_slave::write (const void *ptr, size_t len)
{
DWORD n, towrite = len;
@@ -759,7 +625,7 @@ fhandler_tty_slave::write (const void *ptr, size_t len)
len -= n;
/* Previous write may have set write_error to != 0. Check it here.
This is less than optimal, but the alternative slows down tty
This is less than optimal, but the alternative slows down pty
writes enormously. */
if (get_ttyp ()->write_error)
{
@@ -783,21 +649,13 @@ fhandler_tty_slave::write (const void *ptr, size_t len)
towrite = (DWORD) -1;
break;
}
if (output_done_event != NULL)
{
DWORD rc;
DWORD x = n * 1000;
rc = WaitForSingleObject (output_done_event, x);
termios_printf ("waited %d ms for output_done_event, WFSO %d", x, rc);
}
}
release_output_mutex ();
return towrite;
}
void __stdcall
fhandler_tty_slave::read (void *ptr, size_t& len)
fhandler_pty_slave::read (void *ptr, size_t& len)
{
int totalread = 0;
int vmin = 0;
@@ -1030,9 +888,9 @@ out:
}
int
fhandler_tty_slave::dup (fhandler_base *child)
fhandler_pty_slave::dup (fhandler_base *child)
{
cygheap->manage_console_count ("fhandler_tty_slave::dup", 1);
cygheap->manage_console_count ("fhandler_pty_slave::dup", 1);
report_tty_counts (child, "duped slave", "");
return 0;
}
@@ -1045,14 +903,14 @@ fhandler_pty_master::dup (fhandler_base *child)
}
int
fhandler_tty_slave::tcgetattr (struct termios *t)
fhandler_pty_slave::tcgetattr (struct termios *t)
{
*t = get_ttyp ()->ti;
return 0;
}
int
fhandler_tty_slave::tcsetattr (int, const struct termios *t)
fhandler_pty_slave::tcsetattr (int, const struct termios *t)
{
acquire_output_mutex (INFINITE);
get_ttyp ()->ti = *t;
@@ -1061,7 +919,7 @@ fhandler_tty_slave::tcsetattr (int, const struct termios *t)
}
int
fhandler_tty_slave::tcflush (int queue)
fhandler_pty_slave::tcflush (int queue)
{
int ret = 0;
@@ -1083,7 +941,7 @@ fhandler_tty_slave::tcflush (int queue)
}
int
fhandler_tty_slave::ioctl (unsigned int cmd, void *arg)
fhandler_pty_slave::ioctl (unsigned int cmd, void *arg)
{
termios_printf ("ioctl (%x)", cmd);
@@ -1139,11 +997,7 @@ fhandler_tty_slave::ioctl (unsigned int cmd, void *arg)
{
case TIOCGWINSZ:
get_ttyp ()->arg.winsize = get_ttyp ()->winsize;
if (ioctl_request_event)
SetEvent (ioctl_request_event);
*(struct winsize *) arg = get_ttyp ()->arg.winsize;
if (ioctl_done_event)
WaitForSingleObject (ioctl_done_event, INFINITE);
get_ttyp ()->winsize = get_ttyp ()->arg.winsize;
break;
case TIOCSWINSZ:
@@ -1151,53 +1005,20 @@ fhandler_tty_slave::ioctl (unsigned int cmd, void *arg)
|| get_ttyp ()->winsize.ws_col != ((struct winsize *) arg)->ws_col)
{
get_ttyp ()->arg.winsize = *(struct winsize *) arg;
if (ioctl_request_event)
{
get_ttyp ()->ioctl_retval = -EINVAL;
SetEvent (ioctl_request_event);
}
else
{
get_ttyp ()->winsize = *(struct winsize *) arg;
killsys (-get_ttyp ()->getpgid (), SIGWINCH);
}
if (ioctl_done_event)
WaitForSingleObject (ioctl_done_event, INFINITE);
get_ttyp ()->winsize = *(struct winsize *) arg;
killsys (-get_ttyp ()->getpgid (), SIGWINCH);
}
break;
case TIOCLINUX:
val = *(unsigned char *) arg;
if (val != 6 || !ioctl_request_event || !ioctl_done_event)
get_ttyp ()->ioctl_retval = -EINVAL;
else
{
get_ttyp ()->arg.value = val;
SetEvent (ioctl_request_event);
WaitForSingleObject (ioctl_done_event, INFINITE);
*(unsigned char *) arg = (unsigned char) (get_ttyp ()->arg.value);
}
if (val != 6)
get_ttyp ()->ioctl_retval = -EINVAL;
break;
case KDGKBMETA:
if (ioctl_request_event)
{
SetEvent (ioctl_request_event);
if (ioctl_done_event)
WaitForSingleObject (ioctl_done_event, INFINITE);
*(int *) arg = get_ttyp ()->arg.value;
}
else
get_ttyp ()->ioctl_retval = -EINVAL;
get_ttyp ()->ioctl_retval = -EINVAL;
break;
case KDSKBMETA:
if (ioctl_request_event)
{
get_ttyp ()->arg.value = (int) arg;
SetEvent (ioctl_request_event);
if (ioctl_done_event)
WaitForSingleObject (ioctl_done_event, INFINITE);
}
else
get_ttyp ()->ioctl_retval = -EINVAL;
get_ttyp ()->ioctl_retval = -EINVAL;
break;
}
@@ -1215,7 +1036,7 @@ out:
}
int __stdcall
fhandler_tty_slave::fstat (struct __stat64 *st)
fhandler_pty_slave::fstat (struct __stat64 *st)
{
fhandler_base::fstat (st);
@@ -1246,7 +1067,7 @@ fhandler_tty_slave::fstat (struct __stat64 *st)
/* Helper function for fchmod and fchown, which just opens all handles
and signals success via bool return. */
bool
fhandler_tty_slave::fch_open_handles ()
fhandler_pty_slave::fch_open_handles ()
{
char buf[MAX_PATH];
@@ -1262,20 +1083,13 @@ fhandler_tty_slave::fch_open_handles ()
__seterrno ();
return false;
}
/* These members are optional, no error checking */
shared_name (buf, OUTPUT_DONE_EVENT, get_unit ());
output_done_event = OpenEvent (WRITE_DAC | WRITE_OWNER, TRUE, buf);
shared_name (buf, IOCTL_REQUEST_EVENT, get_unit ());
ioctl_request_event = OpenEvent (WRITE_DAC | WRITE_OWNER, TRUE, buf);
shared_name (buf, IOCTL_DONE_EVENT, get_unit ());
ioctl_done_event = OpenEvent (WRITE_DAC | WRITE_OWNER, TRUE, buf);
return true;
}
/* Helper function for fchmod and fchown, which sets the new security
descriptor on all objects representing the tty. */
descriptor on all objects representing the pty. */
int
fhandler_tty_slave::fch_set_sd (security_descriptor &sd, bool chown)
fhandler_pty_slave::fch_set_sd (security_descriptor &sd, bool chown)
{
security_descriptor sd_old;
@@ -1283,37 +1097,22 @@ fhandler_tty_slave::fch_set_sd (security_descriptor &sd, bool chown)
if (!set_object_sd (input_available_event, sd, chown)
&& !set_object_sd (output_mutex, sd, chown)
&& !set_object_sd (input_mutex, sd, chown)
&& !set_object_sd (inuse, sd, chown)
&& (!output_done_event
|| !set_object_sd (output_done_event, sd, chown))
&& (!ioctl_request_event
|| !set_object_sd (ioctl_request_event, sd, chown))
&& (!ioctl_done_event
|| !set_object_sd (ioctl_done_event, sd, chown)))
&& !set_object_sd (inuse, sd, chown))
return 0;
set_object_sd (input_available_event, sd_old, chown);
set_object_sd (output_mutex, sd_old, chown);
set_object_sd (input_mutex, sd_old, chown);
set_object_sd (inuse, sd_old, chown);
if (!output_done_event)
set_object_sd (output_done_event, sd_old, chown);
if (!ioctl_request_event)
set_object_sd (ioctl_request_event, sd_old, chown);
if (!ioctl_done_event)
set_object_sd (ioctl_done_event, sd_old, chown);
return -1;
}
/* Helper function for fchmod and fchown, which closes all object handles in
the tty. */
the pty. */
void
fhandler_tty_slave::fch_close_handles ()
fhandler_pty_slave::fch_close_handles ()
{
close_maybe (get_io_handle ());
close_maybe (get_output_handle ());
close_maybe (output_done_event);
close_maybe (ioctl_done_event);
close_maybe (ioctl_request_event);
close_maybe (input_available_event);
close_maybe (output_mutex);
close_maybe (input_mutex);
@@ -1321,7 +1120,7 @@ fhandler_tty_slave::fch_close_handles ()
}
int __stdcall
fhandler_tty_slave::fchmod (mode_t mode)
fhandler_pty_slave::fchmod (mode_t mode)
{
int ret = -1;
bool to_close = false;
@@ -1347,7 +1146,7 @@ errout:
}
int __stdcall
fhandler_tty_slave::fchown (__uid32_t uid, __gid32_t gid)
fhandler_pty_slave::fchown (__uid32_t uid, __gid32_t gid)
{
int ret = -1;
bool to_close = false;
@@ -1385,7 +1184,7 @@ errout:
fhandler_pty_master
*/
fhandler_pty_master::fhandler_pty_master ()
: fhandler_tty_common (), pktmode (0), need_nl (0), dwProcessId (0)
: fhandler_pty_common (), pktmode (0), need_nl (0), dwProcessId (0)
{
}
@@ -1393,12 +1192,12 @@ int
fhandler_pty_master::open (int flags, mode_t)
{
/* Note that allocate returns with the tty lock set if it was successful. */
int unit = cygwin_shared->tty.allocate (false);
int unit = cygwin_shared->tty.allocate ();
if (unit < 0)
return 0;
dev().parse (DEV_TTYM_MAJOR, unit);
if (!setup (true))
if (!setup ())
{
lock_ttys::release ();
return 0;
@@ -1416,22 +1215,16 @@ fhandler_pty_master::open (int flags, mode_t)
}
_off64_t
fhandler_tty_common::lseek (_off64_t, int)
fhandler_pty_common::lseek (_off64_t, int)
{
set_errno (ESPIPE);
return -1;
}
int
fhandler_tty_common::close ()
fhandler_pty_common::close ()
{
termios_printf ("tty%d <%p,%p> closing", get_unit (), get_handle (), get_output_handle ());
if (output_done_event && !CloseHandle (output_done_event))
termios_printf ("CloseHandle (output_done_event), %E");
if (ioctl_done_event && !CloseHandle (ioctl_done_event))
termios_printf ("CloseHandle (ioctl_done_event), %E");
if (ioctl_request_event && !CloseHandle (ioctl_request_event))
termios_printf ("CloseHandle (ioctl_request_event), %E");
if (!ForceCloseHandle (input_mutex))
termios_printf ("CloseHandle (input_mutex<%p>), %E", input_mutex);
if (!ForceCloseHandle (output_mutex))
@@ -1472,7 +1265,7 @@ fhandler_pty_master::close ()
pipe_reply repl;
DWORD len;
__small_sprintf (buf, "\\\\.\\pipe\\cygwin-%S-tty%d-master-ctl",
__small_sprintf (buf, "\\\\.\\pipe\\cygwin-%S-pty%d-master-ctl",
&installation_key, get_unit ());
CallNamedPipe (buf, &req, sizeof req, &repl, sizeof repl, &len, 500);
CloseHandle (master_ctl);
@@ -1483,7 +1276,7 @@ fhandler_pty_master::close ()
if (!ForceCloseHandle (to_master))
termios_printf ("error closing from_master %p, %E", to_master);
}
fhandler_tty_common::close ();
fhandler_pty_common::close ();
if (hExeced || get_ttyp ()->master_pid != myself->pid)
termios_printf ("not clearing: %d, master_pid %d", hExeced, get_ttyp ()->master_pid);
@@ -1608,42 +1401,27 @@ fhandler_pty_master::ptsname ()
}
void
fhandler_tty_common::set_close_on_exec (bool val)
fhandler_pty_common::set_close_on_exec (bool val)
{
// Cygwin processes will handle this specially on exec.
close_on_exec (val);
}
void
fhandler_tty_slave::fixup_after_fork (HANDLE parent)
fhandler_pty_slave::fixup_after_fork (HANDLE parent)
{
// fork_fixup (parent, inuse, "inuse");
// fhandler_tty_common::fixup_after_fork (parent);
// fhandler_pty_common::fixup_after_fork (parent);
report_tty_counts (this, "inherited", "");
}
void
fhandler_tty_slave::fixup_after_exec ()
fhandler_pty_slave::fixup_after_exec ()
{
if (!close_on_exec ())
fixup_after_fork (NULL);
}
int
fhandler_tty_master::init_console ()
{
console = (fhandler_console *) build_fh_dev (*console_dev, "/dev/ttym_console");
if (console == NULL)
{
termios_printf ("console creation failed?");
return -1;
}
console->init (NULL, GENERIC_READ | GENERIC_WRITE, O_BINARY);
cygheap->manage_console_count ("fhandler_tty_master::init_console", -1, true);
return 0;
}
extern "C" BOOL WINAPI GetNamedPipeClientProcessId (HANDLE, PULONG);
/* This thread function handles the master control pipe. It waits for a
@@ -1791,7 +1569,7 @@ pty_master_thread (VOID *arg)
}
bool
fhandler_pty_master::setup (bool ispty)
fhandler_pty_master::setup ()
{
int res;
security_descriptor sd;
@@ -1806,11 +1584,11 @@ fhandler_pty_master::setup (bool ispty)
DWORD pipe_mode = PIPE_NOWAIT;
/* Create communication pipes */
char pipename[sizeof("ttyNNNN-from-master")];
__small_sprintf (pipename, "tty%d-from-master", get_unit ());
res = fhandler_pipe::create_selectable (ispty ? &sec_none : &sec_none_nih,
from_master, get_output_handle (),
128 * 1024, pipename);
char pipename[sizeof("ptyNNNN-from-master")];
__small_sprintf (pipename, "pty%d-from-master", get_unit ());
res = fhandler_pipe::create_selectable (&sec_none, from_master,
get_output_handle (), 128 * 1024,
pipename);
if (res)
{
errstr = "input pipe";
@@ -1821,10 +1599,9 @@ fhandler_pty_master::setup (bool ispty)
termios_printf ("can't set output_handle(%p) to non-blocking mode",
get_output_handle ());
__small_sprintf (pipename, "tty%d-to-master", get_unit ());
res = fhandler_pipe::create_selectable (ispty ? &sec_none : &sec_none_nih,
get_io_handle (), to_master,
128 * 1024, pipename);
__small_sprintf (pipename, "pty%d-to-master", get_unit ());
res = fhandler_pipe::create_selectable (&sec_none, get_io_handle (),
to_master, 128 * 1024, pipename);
if (res)
{
errstr = "output pipe";
@@ -1841,19 +1618,6 @@ fhandler_pty_master::setup (bool ispty)
sd))
sa.lpSecurityDescriptor = (PSECURITY_DESCRIPTOR) sd;
/* Create synchronisation events */
if (!ispty)
{
if (!(output_done_event = t.get_event (errstr = OUTPUT_DONE_EVENT, &sa)))
goto err;
if (!(ioctl_done_event = t.get_event (errstr = IOCTL_DONE_EVENT, &sa)))
goto err;
if (!(ioctl_request_event = t.get_event (errstr = IOCTL_REQUEST_EVENT,
&sa)))
goto err;
}
/* Carefully check that the input_available_event didn't already exist.
This is a measure to make sure that the event security descriptor
isn't occupied by a malicious process. We must make sure that the
@@ -1874,7 +1638,7 @@ fhandler_pty_master::setup (bool ispty)
/* Create master control pipe which allows the master to duplicate
the pty pipe handles to processes which deserve it. */
__small_sprintf (buf, "\\\\.\\pipe\\cygwin-%S-tty%d-master-ctl",
__small_sprintf (buf, "\\\\.\\pipe\\cygwin-%S-pty%d-master-ctl",
&installation_key, get_unit ());
master_ctl = CreateNamedPipe (buf, PIPE_ACCESS_DUPLEX,
PIPE_WAIT | PIPE_TYPE_MESSAGE
@@ -1894,8 +1658,6 @@ fhandler_pty_master::setup (bool ispty)
t.from_master = from_master;
t.to_master = to_master;
// /* screws up tty master */ ProtectHandle1INH (output_mutex, output_mutex);
// /* screws up tty master */ ProtectHandle1INH (input_mutex, input_mutex);
t.winsize.ws_col = 80;
t.winsize.ws_row = 25;
t.master_pid = myself->pid;
@@ -1908,9 +1670,6 @@ err:
__seterrno ();
close_maybe (get_io_handle ());
close_maybe (get_output_handle ());
close_maybe (output_done_event);
close_maybe (ioctl_done_event);
close_maybe (ioctl_request_event);
close_maybe (input_available_event);
close_maybe (output_mutex);
close_maybe (input_mutex);
@@ -1925,7 +1684,7 @@ void
fhandler_pty_master::fixup_after_fork (HANDLE parent)
{
DWORD wpid = GetCurrentProcessId ();
fhandler_tty_master *arch = (fhandler_tty_master *) archetype;
fhandler_pty_master *arch = (fhandler_pty_master *) archetype;
if (arch->dwProcessId != wpid)
{
tty& t = *get_ttyp ();