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-rw-r--r--winsup/cygwin/fhandler_termios.cc438
1 files changed, 0 insertions, 438 deletions
diff --git a/winsup/cygwin/fhandler_termios.cc b/winsup/cygwin/fhandler_termios.cc
deleted file mode 100644
index 611677868..000000000
--- a/winsup/cygwin/fhandler_termios.cc
+++ /dev/null
@@ -1,438 +0,0 @@
-/* fhandler_termios.cc
-
- Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009,
- 2010, 2011, 2012 Red Hat, Inc.
-
-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 <stdlib.h>
-#include <ctype.h>
-#include "cygerrno.h"
-#include "path.h"
-#include "fhandler.h"
-#include "sigproc.h"
-#include "pinfo.h"
-#include "tty.h"
-#include "cygtls.h"
-#include "dtable.h"
-#include "cygheap.h"
-#include "child_info.h"
-#include "ntdll.h"
-
-/* Common functions shared by tty/console */
-
-void
-fhandler_termios::tcinit (bool is_pty_master)
-{
- /* Initial termios values */
-
- if (is_pty_master || !tc ()->initialized ())
- {
- tc ()->ti.c_iflag = BRKINT | ICRNL | IXON;
- tc ()->ti.c_oflag = OPOST | ONLCR;
- tc ()->ti.c_cflag = B38400 | CS8 | CREAD;
- tc ()->ti.c_lflag = ISIG | ICANON | ECHO | IEXTEN;
-
- tc ()->ti.c_cc[VDISCARD] = CFLUSH;
- tc ()->ti.c_cc[VEOL] = CEOL;
- tc ()->ti.c_cc[VEOL2] = CEOL2;
- tc ()->ti.c_cc[VEOF] = CEOF;
- tc ()->ti.c_cc[VERASE] = CERASE;
- tc ()->ti.c_cc[VINTR] = CINTR;
- tc ()->ti.c_cc[VKILL] = CKILL;
- tc ()->ti.c_cc[VLNEXT] = CLNEXT;
- tc ()->ti.c_cc[VMIN] = 1;
- tc ()->ti.c_cc[VQUIT] = CQUIT;
- tc ()->ti.c_cc[VREPRINT] = CRPRNT;
- tc ()->ti.c_cc[VSTART] = CSTART;
- tc ()->ti.c_cc[VSTOP] = CSTOP;
- tc ()->ti.c_cc[VSUSP] = CSUSP;
- tc ()->ti.c_cc[VSWTC] = CSWTCH;
- tc ()->ti.c_cc[VTIME] = 0;
- tc ()->ti.c_cc[VWERASE] = CWERASE;
-
- tc ()->ti.c_ispeed = tc ()->ti.c_ospeed = B38400;
- tc ()->pgid = is_pty_master ? 0 : myself->pgid;
- tc ()->initialized (true);
- }
-}
-
-int
-fhandler_termios::tcsetpgrp (const pid_t pgid)
-{
- termios_printf ("%s, pgid %d, sid %d, tsid %d", tc ()->ttyname (), pgid,
- myself->sid, tc ()->getsid ());
- if (myself->sid != tc ()->getsid ())
- {
- set_errno (EPERM);
- return -1;
- }
- int res;
- while (1)
- {
- res = bg_check (-SIGTTOU);
-
- switch (res)
- {
- case bg_ok:
- tc ()->setpgid (pgid);
- if (tc ()->is_console && (strace.active () || !being_debugged ()))
- tc ()->kill_pgrp (__SIGSETPGRP);
- res = 0;
- break;
- case bg_signalled:
- if (_my_tls.call_signal_handler ())
- continue;
- set_errno (EINTR);
- /* fall through intentionally */
- default:
- res = -1;
- break;
- }
- break;
- }
- return res;
-}
-
-int
-fhandler_termios::tcgetpgrp ()
-{
- if (myself->ctty > 0 && myself->ctty == tc ()->ntty)
- return tc ()->pgid;
- set_errno (ENOTTY);
- return -1;
-}
-
-int
-fhandler_pty_master::tcgetpgrp ()
-{
- return tc ()->pgid;
-}
-
-void
-tty_min::kill_pgrp (int sig)
-{
- bool killself = false;
- winpids pids ((DWORD) PID_MAP_RW);
- siginfo_t si = {0};
- si.si_signo = sig;
- si.si_code = SI_KERNEL;
- for (unsigned i = 0; i < pids.npids; i++)
- {
- _pinfo *p = pids[i];
- if (!p->exists () || p->ctty != ntty || p->pgid != pgid)
- continue;
- if (p == myself)
- killself = sig != __SIGSETPGRP;
- else
- sig_send (p, si);
- }
- if (killself)
- sig_send (myself, si);
-}
-
-int
-tty_min::is_orphaned_process_group (int pgid)
-{
- /* An orphaned process group is a process group in which the parent
- of every member is either itself a member of the group or is not
- a member of the group's session. */
- termios_printf ("checking pgid %d, my sid %d, my parent %d", pgid, myself->sid, myself->ppid);
- winpids pids ((DWORD) 0);
- for (unsigned i = 0; i < pids.npids; i++)
- {
- _pinfo *p = pids[i];
- termios_printf ("checking pid %d - has pgid %d\n", p->pid, p->pgid);
- if (!p || !p->exists () || p->pgid != pgid)
- continue;
- pinfo ppid (p->ppid);
- if (!ppid)
- continue;
- termios_printf ("ppid->pgid %d, ppid->sid %d", ppid->pgid, ppid->sid);
- if (ppid->pgid != pgid && ppid->sid == myself->sid)
- return 0;
- }
- return 1;
-}
-
-bg_check_types
-fhandler_termios::bg_check (int sig)
-{
- if (!myself->pgid || tc ()->getpgid () == myself->pgid ||
- myself->ctty != tc ()->ntty ||
- ((sig == SIGTTOU) && !(tc ()->ti.c_lflag & TOSTOP)))
- return bg_ok;
-
- if (sig < 0)
- sig = -sig;
-
- termios_printf ("%s, bg I/O pgid %d, tpgid %d, myctty %s", tc ()->ttyname (),
- myself->pgid, tc ()->getpgid (), myctty ());
-
- if (tc ()->getsid () == 0)
- {
- /* The pty has been closed by the master. Return an EOF
- indication. FIXME: There is nothing to stop somebody
- from reallocating this pty. I think this is the case
- which is handled by unlockpt on a Unix system. */
- termios_printf ("closed by master");
- return bg_eof;
- }
-
- int sigs_ignored =
- ((void *) global_sigs[sig].sa_handler == (void *) SIG_IGN) ||
- (_main_tls->sigmask & SIGTOMASK (sig));
-
- /* If the process is ignoring SIGTT*, then background IO is OK. If
- the process is not ignoring SIGTT*, then the sig is to be sent to
- all processes in the process group (unless the process group of the
- process is orphaned, in which case we return EIO). */
- if (sigs_ignored)
- return bg_ok; /* Just allow the IO */
- else if (tc ()->is_orphaned_process_group (myself->pgid))
- {
- termios_printf ("process group is orphaned");
- set_errno (EIO); /* This is an IO error */
- return bg_error;
- }
- else
- {
- /* Don't raise a SIGTT* signal if we have already been
- interrupted by another signal. */
- if (cygwait ((DWORD) 0) != WAIT_SIGNALED)
- {
- siginfo_t si = {0};
- si.si_signo = sig;
- si.si_code = SI_KERNEL;
- kill_pgrp (myself->pgid, si);
- }
- return bg_signalled;
- }
-}
-
-#define set_input_done(x) input_done = input_done || (x)
-
-inline void
-fhandler_termios::echo_erase (int force)
-{
- if (force || tc ()->ti.c_lflag & ECHO)
- doecho ("\b \b", 3);
-}
-
-line_edit_status
-fhandler_termios::line_edit (const char *rptr, int nread, termios& ti)
-{
- line_edit_status ret = line_edit_ok;
- char c;
- int input_done = 0;
- bool sawsig = false;
- int iscanon = ti.c_lflag & ICANON;
-
- while (nread-- > 0)
- {
- c = *rptr++;
-
- paranoid_printf ("char %0c", c);
-
- if (ti.c_iflag & ISTRIP)
- c &= 0x7f;
- if (ti.c_lflag & ISIG)
- {
- int sig;
- if (CCEQ (ti.c_cc[VINTR], c))
- sig = SIGINT;
- else if (CCEQ (ti.c_cc[VQUIT], c))
- sig = SIGQUIT;
- else if (CCEQ (ti.c_cc[VSUSP], c))
- sig = SIGTSTP;
- else
- goto not_a_sig;
-
- termios_printf ("got interrupt %d, sending signal %d", c, sig);
- eat_readahead (-1);
- tc ()->kill_pgrp (sig);
- ti.c_lflag &= ~FLUSHO;
- sawsig = true;
- goto restart_output;
- }
- not_a_sig:
- if (ti.c_iflag & IXON)
- {
- if (CCEQ (ti.c_cc[VSTOP], c))
- {
- if (!tc ()->output_stopped)
- tc ()->output_stopped = true;
- continue;
- }
- else if (CCEQ (ti.c_cc[VSTART], c))
- {
- restart_output:
- tc ()->output_stopped = false;
- continue;
- }
- else if ((ti.c_iflag & IXANY) && tc ()->output_stopped)
- goto restart_output;
- }
- /* Check for special chars */
-
- if (c == '\r')
- {
- if (ti.c_iflag & IGNCR)
- continue;
- if (ti.c_iflag & ICRNL)
- {
- c = '\n';
- set_input_done (iscanon);
- }
- }
- else if (c == '\n')
- {
- if (ti.c_iflag & INLCR)
- c = '\r';
- else
- set_input_done (iscanon);
- }
- if (iscanon && ti.c_lflag & IEXTEN && CCEQ (ti.c_cc[VDISCARD], c))
- {
- ti.c_lflag ^= FLUSHO;
- continue;
- }
-
- if (!iscanon)
- /* nothing */;
- else if (CCEQ (ti.c_cc[VERASE], c))
- {
- if (eat_readahead (1))
- echo_erase ();
- continue;
- }
- else if (CCEQ (ti.c_cc[VWERASE], c))
- {
- int ch;
- do
- if (!eat_readahead (1))
- break;
- else
- echo_erase ();
- while ((ch = peek_readahead (1)) >= 0 && !isspace (ch));
- continue;
- }
- else if (CCEQ (ti.c_cc[VKILL], c))
- {
- int nchars = eat_readahead (-1);
- if (ti.c_lflag & ECHO)
- while (nchars--)
- echo_erase (1);
- continue;
- }
- else if (CCEQ (ti.c_cc[VREPRINT], c))
- {
- if (ti.c_lflag & ECHO)
- {
- doecho ("\n\r", 2);
- doecho (rabuf, ralen);
- }
- continue;
- }
- else if (CCEQ (ti.c_cc[VEOF], c))
- {
- termios_printf ("EOF");
- accept_input ();
- ret = line_edit_input_done;
- continue;
- }
- else if (CCEQ (ti.c_cc[VEOL], c) ||
- CCEQ (ti.c_cc[VEOL2], c) ||
- c == '\n')
- {
- set_input_done (1);
- termios_printf ("EOL");
- }
-
- if (ti.c_iflag & IUCLC && isupper (c))
- c = cyg_tolower (c);
-
- put_readahead (c);
- if (ti.c_lflag & ECHO)
- doecho (&c, 1);
- if (!iscanon || input_done)
- {
- int status = accept_input ();
- if (status != 1)
- {
- ret = status ? line_edit_error : line_edit_pipe_full;
- eat_readahead (1);
- break;
- }
- ret = line_edit_input_done;
- input_done = 0;
- }
- }
-
- if (!iscanon && ralen > 0)
- ret = line_edit_input_done;
-
- if (sawsig)
- ret = line_edit_signalled;
-
- return ret;
-}
-
-_off64_t
-fhandler_termios::lseek (_off64_t, int)
-{
- set_errno (ESPIPE);
- return -1;
-}
-
-void
-fhandler_termios::sigflush ()
-{
- /* FIXME: Checking get_ttyp() for NULL is not right since it should not
- be NULL while this is alive. However, we can conceivably close a
- ctty while exiting and that will zero this. */
- if ((!have_execed || have_execed_cygwin) && get_ttyp ()
- && !(get_ttyp ()->ti.c_lflag & NOFLSH))
- tcflush (TCIFLUSH);
-}
-
-pid_t
-fhandler_termios::tcgetsid ()
-{
- if (myself->ctty > 0 && myself->ctty == tc ()->ntty)
- return tc ()->getsid ();
- set_errno (ENOTTY);
- return -1;
-}
-
-int
-fhandler_termios::ioctl (int cmd, void *varg)
-{
- if (cmd != TIOCSCTTY)
- return 1; /* Not handled by this function */
-
- int arg = (int) varg;
-
- if (arg != 0 && arg != 1)
- {
- set_errno (EINVAL);
- return -1;
- }
-
- termios_printf ("myself->ctty %d, myself->sid %d, myself->pid %d, arg %d, tc()->getsid () %d\n",
- myself->ctty, myself->sid, myself->pid, arg, tc ()->getsid ());
- if (myself->ctty > 0 || myself->sid != myself->pid || (!arg && tc ()->getsid () > 0))
- {
- set_errno (EPERM);
- return -1;
- }
-
- myself->ctty = -1;
- myself->set_ctty (this, 0);
- return 0;
-}