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/* $OpenBSD: lib_ttyflags.c,v 1.5 2010/01/12 23:22:06 nicm Exp $ */ |
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/**************************************************************************** |
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* Copyright (c) 1998-2007,2008 Free Software Foundation, Inc. * |
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* * |
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* Permission is hereby granted, free of charge, to any person obtaining a * |
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* copy of this software and associated documentation files (the * |
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* "Software"), to deal in the Software without restriction, including * |
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* without limitation the rights to use, copy, modify, merge, publish, * |
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* distribute, distribute with modifications, sublicense, and/or sell * |
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* copies of the Software, and to permit persons to whom the Software is * |
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* furnished to do so, subject to the following conditions: * |
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* * |
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* The above copyright notice and this permission notice shall be included * |
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* in all copies or substantial portions of the Software. * |
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* * |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * |
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * |
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * |
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* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * |
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * |
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * |
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* THE USE OR OTHER DEALINGS IN THE SOFTWARE. * |
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* * |
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* Except as contained in this notice, the name(s) of the above copyright * |
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* holders shall not be used in advertising or otherwise to promote the * |
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* sale, use or other dealings in this Software without prior written * |
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* authorization. * |
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****************************************************************************/ |
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/* |
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* def_prog_mode() |
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* def_shell_mode() |
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* reset_prog_mode() |
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* reset_shell_mode() |
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* savetty() |
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* resetty() |
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*/ |
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#include <curses.priv.h> |
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#include <term.h> /* cur_term */ |
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MODULE_ID("$Id: lib_ttyflags.c,v 1.5 2010/01/12 23:22:06 nicm Exp $") |
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NCURSES_EXPORT(int) |
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_nc_get_tty_mode(TTY * buf) |
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{ |
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int result = OK; |
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✗✓ |
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if (buf == 0) { |
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result = ERR; |
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} else { |
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✗✓ |
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if (cur_term == 0) { |
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result = ERR; |
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} else { |
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for (;;) { |
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✗✓ |
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if (GET_TTY(cur_term->Filedes, buf) != 0) { |
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if (errno == EINTR) |
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continue; |
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result = ERR; |
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} |
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break; |
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} |
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} |
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✗✓ |
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if (result == ERR) |
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memset(buf, 0, sizeof(*buf)); |
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TR(TRACE_BITS, ("_nc_get_tty_mode(%d): %s", |
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cur_term ? cur_term->Filedes : -1, |
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_nc_trace_ttymode(buf))); |
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} |
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return (result); |
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} |
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NCURSES_EXPORT(int) |
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_nc_set_tty_mode(TTY * buf) |
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{ |
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int result = OK; |
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if (buf == 0) { |
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result = ERR; |
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} else { |
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if (cur_term == 0) { |
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result = ERR; |
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} else { |
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for (;;) { |
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if (SET_TTY(cur_term->Filedes, buf) != 0) { |
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if (errno == EINTR) |
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continue; |
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if ((errno == ENOTTY) && (SP != 0)) |
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SP->_notty = TRUE; |
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result = ERR; |
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} |
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break; |
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} |
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} |
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TR(TRACE_BITS, ("_nc_set_tty_mode(%d): %s", |
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cur_term ? cur_term->Filedes : -1, |
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_nc_trace_ttymode(buf))); |
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} |
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return (result); |
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} |
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NCURSES_EXPORT(int) |
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def_shell_mode(void) |
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{ |
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int rc = ERR; |
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T((T_CALLED("def_shell_mode()"))); |
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if (cur_term != 0) { |
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/* |
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* If XTABS was on, remove the tab and backtab capabilities. |
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*/ |
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if (_nc_get_tty_mode(&cur_term->Ottyb) == OK) { |
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#ifdef TERMIOS |
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if (cur_term->Ottyb.c_oflag & OFLAGS_TABS) |
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tab = back_tab = NULL; |
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#else |
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if (cur_term->Ottyb.sg_flags & XTABS) |
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tab = back_tab = NULL; |
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#endif |
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rc = OK; |
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} |
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} |
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returnCode(rc); |
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} |
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NCURSES_EXPORT(int) |
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def_prog_mode(void) |
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{ |
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int rc = ERR; |
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T((T_CALLED("def_prog_mode()"))); |
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✓✗ |
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if (cur_term != 0) { |
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/* |
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* Turn off the XTABS bit in the tty structure if it was on. |
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*/ |
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✓✗ |
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if (_nc_get_tty_mode(&cur_term->Nttyb) == OK) { |
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#ifdef TERMIOS |
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cur_term->Nttyb.c_oflag &= ~OFLAGS_TABS; |
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#else |
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cur_term->Nttyb.sg_flags &= ~XTABS; |
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#endif |
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rc = OK; |
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} |
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} |
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returnCode(rc); |
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} |
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NCURSES_EXPORT(int) |
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reset_prog_mode(void) |
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{ |
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T((T_CALLED("reset_prog_mode()"))); |
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if (cur_term != 0) { |
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if (_nc_set_tty_mode(&cur_term->Nttyb) == OK) { |
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if (SP) { |
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if (SP->_keypad_on) |
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_nc_keypad(SP, TRUE); |
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NC_BUFFERED(TRUE); |
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} |
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returnCode(OK); |
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} |
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} |
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returnCode(ERR); |
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} |
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NCURSES_EXPORT(int) |
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reset_shell_mode(void) |
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{ |
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T((T_CALLED("reset_shell_mode()"))); |
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if (cur_term != 0) { |
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if (SP) { |
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_nc_keypad(SP, FALSE); |
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_nc_flush(); |
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NC_BUFFERED(FALSE); |
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} |
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returnCode(_nc_set_tty_mode(&cur_term->Ottyb)); |
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} |
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returnCode(ERR); |
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} |
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static TTY * |
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saved_tty(void) |
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{ |
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TTY *result = 0; |
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if (SP != 0) { |
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result = &(SP->_saved_tty); |
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} else { |
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if (_nc_prescreen.saved_tty == 0) { |
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_nc_prescreen.saved_tty = typeCalloc(TTY, 1); |
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} |
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result = _nc_prescreen.saved_tty; |
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} |
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return result; |
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} |
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/* |
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** savetty() and resetty() |
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** |
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*/ |
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NCURSES_EXPORT(int) |
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savetty(void) |
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{ |
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T((T_CALLED("savetty()"))); |
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returnCode(_nc_get_tty_mode(saved_tty())); |
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} |
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NCURSES_EXPORT(int) |
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resetty(void) |
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{ |
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T((T_CALLED("resetty()"))); |
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returnCode(_nc_set_tty_mode(saved_tty())); |
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} |