aboutsummaryrefslogtreecommitdiff
path: root/winsup/cygwin/fhandler_termios.cc
diff options
context:
space:
mode:
Diffstat (limited to 'winsup/cygwin/fhandler_termios.cc')
-rw-r--r--winsup/cygwin/fhandler_termios.cc298
1 files changed, 0 insertions, 298 deletions
diff --git a/winsup/cygwin/fhandler_termios.cc b/winsup/cygwin/fhandler_termios.cc
deleted file mode 100644
index 49430a0..0000000
--- a/winsup/cygwin/fhandler_termios.cc
+++ /dev/null
@@ -1,298 +0,0 @@
-/* fhandler_termios.cc
-
- Copyright 1996, 1997, 1998 Cygnus Solutions.
-
-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 <fcntl.h>
-#include <unistd.h>
-#include <errno.h>
-#include <ctype.h>
-#include "cygerrno.h"
-#include "fhandler.h"
-#include "sync.h"
-#include "sigproc.h"
-#include "pinfo.h"
-
-/* Common functions shared by tty/console */
-
-void
-fhandler_termios::tcinit (tty_min *this_tc, int force)
-{
- /* Initial termios values */
-
- tc = this_tc;
-
- if (force || !TTYISSETF (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 = myself->pgid;
- TTYSETF (INITIALIZED);
- }
-}
-
-int
-fhandler_termios::tcsetpgrp (const pid_t pgid)
-{
- termios_printf ("pgid %d, sid %d, tsid %d", pgid,
- myself->sid, tc->getsid ());
- if (myself->sid != tc->getsid ())
- {
- set_errno (EPERM);
- return -1;
- }
- tc->setpgid (pgid);
- return 0;
-}
-
-int
-fhandler_termios::tcgetpgrp ()
-{
- return tc->pgid;
-}
-
-void
-fhandler_termios::set_ctty (int ttynum, int flags)
-{
- if ((myself->ctty < 0 || myself->ctty == ttynum) && !(flags & O_NOCTTY))
- {
- myself->ctty = ttynum;
- syscall_printf ("attached tty%d sid %d, pid %d, tty->pgid %d, tty->sid %d",
- ttynum, myself->sid, myself->pid, tc->pgid, tc->getsid ());
-
- pinfo p (tc->getsid ());
- if (myself->sid == myself->pid &&
- (p == myself || !proc_exists (p)))
- {
- paranoid_printf ("resetting tty%d sid. Was %d, now %d. pgid was %d, now %d.",
- ttynum, tc->getsid(), myself->sid, tc->getpgid (), myself->pgid);
- /* We are the session leader */
- tc->setsid (myself->sid);
- tc->setpgid (myself->pgid);
- }
- else
- myself->sid = tc->getsid ();
- if (tc->getpgid () == 0)
- tc->setpgid (myself->pgid);
- }
-}
-
-int
-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 1;
-
- if (sig < 0)
- sig = -sig;
-
- termios_printf("bg I/O pgid %d, tpgid %d, ctty %d",
- myself->pgid, tc->getpgid (), myself->ctty);
-
- 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 0;
- }
-
- /* If the process group is no more or if process is ignoring or blocks 'sig',
- return with error */
- int pgid_gone = !proc_exists (myself->pgid);
- int sigs_ignored =
- ((void *) myself->getsig(sig).sa_handler == (void *) SIG_IGN) ||
- (myself->getsigmask () & SIGTOMASK (sig));
-
- if (pgid_gone)
- goto setEIO;
- else if (!sigs_ignored)
- /* nothing */;
- else if (sig == SIGTTOU)
- return 1; /* Just allow the output */
- else
- goto setEIO; /* This is an output error */
-
- _raise (sig);
- return 1;
-
-setEIO:
- set_errno (EIO);
- return -1;
-}
-
-#define set_input_done(x) input_done = input_done || (x)
-
-int
-fhandler_termios::line_edit (const char *rptr, int nread, int always_accept)
-{
- char c;
- int input_done = 0;
- int iscanon = tc->ti.c_lflag & ICANON;
-
- while (nread-- > 0)
- {
- c = *rptr++;
-
- termios_printf ("char %c", c);
-
- /* Check for special chars */
-
- if (c == '\r')
- {
- if (tc->ti.c_iflag & IGNCR)
- continue;
- if (tc->ti.c_iflag & ICRNL)
- {
- c = '\n';
- set_input_done (iscanon);
- }
- }
- else if (c == '\n')
- {
- if (tc->ti.c_iflag & INLCR)
- c = '\r';
- else
- set_input_done (iscanon);
- }
-
- if (tc->ti.c_iflag & ISTRIP)
- c &= 0x7f;
- if (tc->ti.c_lflag & ISIG)
- {
- int sig;
- if (c == tc->ti.c_cc[VINTR])
- sig = SIGINT;
- else if (c == tc->ti.c_cc[VQUIT])
- sig = SIGQUIT;
- else if (c == tc->ti.c_cc[VSUSP])
- sig = SIGTSTP;
- else
- goto not_a_sig;
-
- termios_printf ("got interrupt %d, sending signal %d", c, sig);
- kill_pgrp (tc->getpgid (), sig);
- tc->ti.c_lflag &= ~FLUSHO;
- goto restart_output;
- }
- not_a_sig:
- if (tc->ti.c_iflag & IXON)
- {
- if (c == tc->ti.c_cc[VSTOP])
- {
- tc->OutputStopped++;
- continue;
- }
- else if (c == tc->ti.c_cc[VSTART])
- {
- restart_output:
- tc->OutputStopped = 0;
- SetEvent (restart_output_event);
- continue;
- }
- else if ((tc->ti.c_iflag & IXANY) && tc->OutputStopped)
- goto restart_output;
- }
- if (tc->ti.c_lflag & IEXTEN && c == tc->ti.c_cc[VDISCARD])
- {
- tc->ti.c_lflag ^= FLUSHO;
- continue;
- }
- if (!iscanon)
- /* nothing */;
- else if (c == tc->ti.c_cc[VERASE])
- {
- if (eat_readahead (1))
- doecho ("\b \b", 3);
- continue;
- }
- else if (c == tc->ti.c_cc[VWERASE])
- {
- int ch;
- do
- if (!eat_readahead (1))
- break;
- else
- doecho ("\b \b", 3);
- while ((ch = peek_readahead (1)) >= 0 && !isspace (ch));
- continue;
- }
- else if (c == tc->ti.c_cc[VKILL])
- {
- int nchars = eat_readahead (-1);
- while (nchars--)
- doecho ("\b \b", 3);
- continue;
- }
- else if (c == tc->ti.c_cc[VREPRINT])
- {
- doecho ("\n\r", 2);
- doecho (rabuf, ralen);
- continue;
- }
- else if (c == tc->ti.c_cc[VEOF])
- {
- termios_printf ("EOF");
- input_done = 1;
- continue;
- }
- else if (c == tc->ti.c_cc[VEOL] ||
- c == tc->ti.c_cc[VEOL2] ||
- c == '\n')
- {
- set_input_done (1);
- termios_printf ("EOL");
- }
-
- if (tc->ti.c_iflag & IUCLC && isupper (c))
- c = tolower (c);
-
- if (tc->ti.c_lflag & ECHO)
- doecho (&c, 1);
- put_readahead (c);
- }
-
- if (!iscanon || always_accept)
- set_input_done (ralen > 0);
-
- /* FIXME: It's not clear that this code will ever do anything.
- Currently, it doesn't look like accept_input will ever return
- a negative number. */
- if (input_done)
- (void) accept_input ();
-
- return input_done;
-}
generated by cgit v1.1 at 2025-03-20 10:08:40 +0000