diff options
Diffstat (limited to 'winsup/cygwin/fhandler_termios.cc')
| -rw-r--r-- | winsup/cygwin/fhandler_termios.cc | 369 |
1 files changed, 0 insertions, 369 deletions
diff --git a/winsup/cygwin/fhandler_termios.cc b/winsup/cygwin/fhandler_termios.cc deleted file mode 100644 index b5d9f2ef3..000000000 --- a/winsup/cygwin/fhandler_termios.cc +++ /dev/null @@ -1,369 +0,0 @@ -/* fhandler_termios.cc - - Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009 - 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" - -/* Common functions shared by tty/console */ - -void -fhandler_termios::tcinit (tty_min *this_tc, bool force) -{ - /* Initial termios values */ - - tc = this_tc; - - if (force || !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 = myself->pgid; - tc->initialized (true); - } -} - -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; - } - int res; - while (1) - { - res = bg_check (-SIGTTOU); - - switch (res) - { - case bg_ok: - tc->setpgid (pgid); - init_console_handler (tc->gethwnd ()); - 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 != -1 && myself->ctty == tc->ntty) - return tc->pgid; - set_errno (ENOTTY); - return -1; -} - -int -fhandler_pty_master::tcgetpgrp () -{ - return myself->ctty != -1 && myself->ctty == tc->ntty ? tc->pgid : 0; -} - -void -tty_min::kill_pgrp (int sig) -{ - int killself = 0; - 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++; - else - sig_send (p, si); - } - if (killself) - sig_send (myself, si); -} - -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, %s, ntty tty%d", myself->pgid, tc->getpgid (), - myctty (), tc->ntty); - - 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 *) global_sigs[sig].sa_handler == (void *) SIG_IGN) || - (_main_tls->sigmask & 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) - { - siginfo_t si = {0}; - si.si_signo = sig; - si.si_code = SI_KERNEL; - kill_pgrp (myself->pgid, si); - } - 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); -} - -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++; - - termios_printf ("char %c", c); - - /* 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 (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 = 1; - acquire_output_mutex (INFINITE); - } - continue; - } - else if (CCEQ (ti.c_cc[VSTART], c)) - { - restart_output: - tc->output_stopped = 0; - release_output_mutex (); - continue; - } - else if ((ti.c_iflag & IXANY) && tc->output_stopped) - goto restart_output; - } - 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; -} |