diff options
Diffstat (limited to 'winsup/cygwin/fhandler_termios.cc')
| -rw-r--r-- | winsup/cygwin/fhandler_termios.cc | 352 |
1 files changed, 0 insertions, 352 deletions
diff --git a/winsup/cygwin/fhandler_termios.cc b/winsup/cygwin/fhandler_termios.cc deleted file mode 100644 index cfdb1578f..000000000 --- a/winsup/cygwin/fhandler_termios.cc +++ /dev/null @@ -1,352 +0,0 @@ -/* fhandler_termios.cc - - Copyright 1999, 2000, 2001, 2002 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 <sys/termios.h> -#include <stdlib.h> -#include <unistd.h> -#include <errno.h> -#include <ctype.h> -#include "cygerrno.h" -#include "security.h" -#include "fhandler.h" -#include "sigproc.h" -#include "pinfo.h" -#include "tty.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 ("tty %d pgid %d, sid %d, tsid %d", tc->ntty, 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 -tty_min::kill_pgrp (int sig) -{ - int killself = 0; - winpids pids; - for (unsigned i = 0; i < pids.npids; i++) - { - _pinfo *p = pids[i]; - if (!proc_exists (p) || p->ctty != ntty || p->pgid != pgid) - continue; - if (p == myself) - killself++; - else - (void) sig_send (p, sig); - } - if (killself) - sig_send (myself, sig); -} - -void -tty_min::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, pgid, getsid ()); - - pinfo p (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, getsid (), myself->sid, getpgid (), myself->pgid); - /* We are the session leader */ - setsid (myself->sid); - setpgid (myself->pgid); - } - else - myself->sid = getsid (); - if (getpgid () == 0) - setpgid (myself->pgid); - } -} - -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 ("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 bg_eof; - } - - /* If the process group is no more or if process is ignoring or blocks 'sig', - return with error */ - int pgid_gone = !pid_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 bg_ok; /* Just allow the output */ - else - goto setEIO; /* This is an output error */ - - /* Don't raise a SIGTT* signal if we have already been interrupted - by another signal. */ - if (WaitForSingleObject (signal_arrived, 0) != WAIT_OBJECT_0) - kill_pgrp (myself->pgid, sig); - return bg_signalled; - -setEIO: - set_errno (EIO); - return bg_error; -} - -#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); -} - -int -fhandler_termios::line_edit (const char *rptr, int nread, int always_accept) -{ - char c; - int input_done = 0; - bool sawsig = FALSE; - 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 (CCEQ (tc->ti.c_cc[VINTR], c)) - sig = SIGINT; - else if (CCEQ (tc->ti.c_cc[VQUIT], c)) - sig = SIGQUIT; - else if (CCEQ (tc->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); - tc->ti.c_lflag &= ~FLUSHO; - sawsig = 1; - goto restart_output; - } - not_a_sig: - if (tc->ti.c_iflag & IXON) - { - if (CCEQ (tc->ti.c_cc[VSTOP], c)) - { - if (!tc->output_stopped) - { - tc->output_stopped = 1; - acquire_output_mutex (INFINITE); - } - continue; - } - else if (CCEQ (tc->ti.c_cc[VSTART], c)) - { - restart_output: - tc->output_stopped = 0; - release_output_mutex (); - continue; - } - else if ((tc->ti.c_iflag & IXANY) && tc->output_stopped) - goto restart_output; - } - if (iscanon && tc->ti.c_lflag & IEXTEN && CCEQ (tc->ti.c_cc[VDISCARD], c)) - { - tc->ti.c_lflag ^= FLUSHO; - continue; - } - if (!iscanon) - /* nothing */; - else if (CCEQ (tc->ti.c_cc[VERASE], c)) - { - if (eat_readahead (1)) - echo_erase (); - continue; - } - else if (CCEQ (tc->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 (tc->ti.c_cc[VKILL], c)) - { - int nchars = eat_readahead (-1); - if (tc->ti.c_lflag & ECHO) - while (nchars--) - echo_erase (1); - continue; - } - else if (CCEQ (tc->ti.c_cc[VREPRINT], c)) - { - if (tc->ti.c_lflag & ECHO) - { - doecho ("\n\r", 2); - doecho (rabuf, ralen); - } - continue; - } - else if (CCEQ (tc->ti.c_cc[VEOF], c)) - { - termios_printf ("EOF"); - input_done = 1; - continue; - } - else if (CCEQ (tc->ti.c_cc[VEOL], c) || - CCEQ (tc->ti.c_cc[VEOL2], c) || - c == '\n') - { - set_input_done (1); - termios_printf ("EOL"); - } - - if (tc->ti.c_iflag & IUCLC && isupper (c)) - c = cyg_tolower (c); - - if (tc->ti.c_lflag & ECHO) - doecho (&c, 1); - put_readahead (c); - } - - if (!iscanon || always_accept) - set_input_done (ralen > 0); - - if (sawsig) - input_done = -1; - else if (input_done) - (void) accept_input (); - - return input_done; -} - -void -fhandler_termios::fixup_after_fork (HANDLE parent) -{ - this->fhandler_base::fixup_after_fork (parent); - fork_fixup (parent, get_output_handle (), "output_handle"); -} - -__off64_t -fhandler_termios::lseek (__off64_t, int) -{ - set_errno (ESPIPE); - return -1; -} |