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diff --git a/ncurses-5.3/ncurses/tinfo/lib_raw.c b/ncurses-5.3/ncurses/tinfo/lib_raw.c
new file mode 100644
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+++ b/ncurses-5.3/ncurses/tinfo/lib_raw.c
@@ -0,0 +1,296 @@
+/****************************************************************************
+ * Copyright (c) 1998-2001,2002 Free Software Foundation, Inc. *
+ * *
+ * Permission is hereby granted, free of charge, to any person obtaining a *
+ * copy of this software and associated documentation files (the *
+ * "Software"), to deal in the Software without restriction, including *
+ * without limitation the rights to use, copy, modify, merge, publish, *
+ * distribute, distribute with modifications, sublicense, and/or sell *
+ * copies of the Software, and to permit persons to whom the Software is *
+ * furnished to do so, subject to the following conditions: *
+ * *
+ * The above copyright notice and this permission notice shall be included *
+ * in all copies or substantial portions of the Software. *
+ * *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
+ * *
+ * Except as contained in this notice, the name(s) of the above copyright *
+ * holders shall not be used in advertising or otherwise to promote the *
+ * sale, use or other dealings in this Software without prior written *
+ * authorization. *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
+ * and: Eric S. Raymond <esr@snark.thyrsus.com> *
+ * and: Thomas E. Dickey 1998 on *
+ ****************************************************************************/
+
+/*
+ * raw.c
+ *
+ * Routines:
+ * raw()
+ * cbreak()
+ * noraw()
+ * nocbreak()
+ * qiflush()
+ * noqiflush()
+ * intrflush()
+ *
+ */
+
+#include <curses.priv.h>
+#include <term.h> /* cur_term */
+
+MODULE_ID("$Id$")
+
+#if SVR4_TERMIO && !defined(_POSIX_SOURCE)
+#define _POSIX_SOURCE
+#endif
+
+#if HAVE_SYS_TERMIO_H
+#include <sys/termio.h> /* needed for ISC */
+#endif
+
+#ifdef __EMX__
+#include <io.h>
+#define _nc_setmode(mode) setmode(SP->_ifd, mode)
+#else
+#define _nc_setmode(mode) /* nothing */
+#endif
+
+#define COOKED_INPUT (IXON|BRKINT|PARMRK)
+
+#ifdef TRACE
+#define BEFORE(N) if (_nc_tracing&TRACE_BITS) _tracef("%s before bits: %s", N, _nc_tracebits())
+#define AFTER(N) if (_nc_tracing&TRACE_BITS) _tracef("%s after bits: %s", N, _nc_tracebits())
+#else
+#define BEFORE(s)
+#define AFTER(s)
+#endif /* TRACE */
+
+NCURSES_EXPORT(int)
+raw(void)
+{
+ int result = ERR;
+
+ T((T_CALLED("raw()")));
+
+ if (SP != 0 && cur_term != 0) {
+ TTY buf;
+
+ BEFORE("raw");
+ _nc_setmode(O_BINARY);
+
+ buf = cur_term->Nttyb;
+#ifdef TERMIOS
+ buf.c_lflag &= ~(ICANON | ISIG | IEXTEN);
+ buf.c_iflag &= ~(COOKED_INPUT);
+ buf.c_cc[VMIN] = 1;
+ buf.c_cc[VTIME] = 0;
+#else
+ buf.sg_flags |= RAW;
+#endif
+ if ((result = _nc_set_tty_mode(&buf)) == OK) {
+ SP->_raw = TRUE;
+ SP->_cbreak = 1;
+ cur_term->Nttyb = buf;
+ }
+ AFTER("raw");
+ }
+ returnCode(result);
+}
+
+NCURSES_EXPORT(int)
+cbreak(void)
+{
+ int result = ERR;
+
+ T((T_CALLED("cbreak()")));
+
+ if (SP != 0 && cur_term != 0) {
+ TTY buf;
+
+ BEFORE("cbreak");
+ _nc_setmode(O_BINARY);
+
+ buf = cur_term->Nttyb;
+#ifdef TERMIOS
+ buf.c_lflag &= ~ICANON;
+ buf.c_iflag &= ~ICRNL;
+ buf.c_lflag |= ISIG;
+ buf.c_cc[VMIN] = 1;
+ buf.c_cc[VTIME] = 0;
+#else
+ buf.sg_flags |= CBREAK;
+#endif
+ if ((result = _nc_set_tty_mode(&buf)) == OK) {
+ SP->_cbreak = 1;
+ cur_term->Nttyb = buf;
+ }
+ AFTER("cbreak");
+ }
+ returnCode(result);
+}
+
+/*
+ * Note:
+ * this implementation may be wrong. See the comment under intrflush().
+ */
+NCURSES_EXPORT(void)
+qiflush(void)
+{
+ int result = ERR;
+
+ T((T_CALLED("qiflush()")));
+
+ if (cur_term != 0) {
+ TTY buf;
+
+ BEFORE("qiflush");
+ buf = cur_term->Nttyb;
+#ifdef TERMIOS
+ buf.c_lflag &= ~(NOFLSH);
+ result = _nc_set_tty_mode(&buf);
+#else
+ /* FIXME */
+#endif
+ if (result == OK)
+ cur_term->Nttyb = buf;
+ AFTER("qiflush");
+ }
+ returnVoid;
+}
+
+NCURSES_EXPORT(int)
+noraw(void)
+{
+ int result = ERR;
+
+ T((T_CALLED("noraw()")));
+
+ if (SP != 0 && cur_term != 0) {
+ TTY buf;
+
+ BEFORE("noraw");
+ _nc_setmode(O_TEXT);
+
+ buf = cur_term->Nttyb;
+#ifdef TERMIOS
+ buf.c_lflag |= ISIG | ICANON |
+ (cur_term->Ottyb.c_lflag & IEXTEN);
+ buf.c_iflag |= COOKED_INPUT;
+#else
+ buf.sg_flags &= ~(RAW | CBREAK);
+#endif
+ if ((result = _nc_set_tty_mode(&buf)) == OK) {
+ SP->_raw = FALSE;
+ SP->_cbreak = 0;
+ cur_term->Nttyb = buf;
+ }
+ AFTER("noraw");
+ }
+ returnCode(result);
+}
+
+NCURSES_EXPORT(int)
+nocbreak(void)
+{
+ int result = ERR;
+
+ T((T_CALLED("nocbreak()")));
+
+ if (SP != 0 && cur_term != 0) {
+ TTY buf;
+
+ BEFORE("nocbreak");
+ _nc_setmode(O_TEXT);
+
+ buf = cur_term->Nttyb;
+#ifdef TERMIOS
+ buf.c_lflag |= ICANON;
+ buf.c_iflag |= ICRNL;
+#else
+ buf.sg_flags &= ~CBREAK;
+#endif
+ if ((result = _nc_set_tty_mode(&buf)) == OK) {
+ SP->_cbreak = 0;
+ cur_term->Nttyb = buf;
+ }
+ AFTER("nocbreak");
+ }
+ returnCode(result);
+}
+
+/*
+ * Note:
+ * this implementation may be wrong. See the comment under intrflush().
+ */
+NCURSES_EXPORT(void)
+noqiflush(void)
+{
+ int result = ERR;
+
+ T((T_CALLED("noqiflush()")));
+
+ if (cur_term != 0) {
+ TTY buf;
+
+ BEFORE("noqiflush");
+ buf = cur_term->Nttyb;
+#ifdef TERMIOS
+ buf.c_lflag |= NOFLSH;
+ result = _nc_set_tty_mode(&buf);
+#else
+ /* FIXME */
+#endif
+ if (result == OK) {
+ cur_term->Nttyb = buf;
+ }
+ AFTER("noqiflush");
+ }
+ returnVoid;
+}
+
+/*
+ * This call does the same thing as the qiflush()/noqiflush() pair. We know
+ * for certain that SVr3 intrflush() tweaks the NOFLSH bit; on the other hand,
+ * the match (in the SVr4 man pages) between the language describing NOFLSH in
+ * termio(7) and the language describing qiflush()/noqiflush() in
+ * curs_inopts(3x) is too exact to be coincidence.
+ */
+NCURSES_EXPORT(int)
+intrflush(WINDOW *win GCC_UNUSED, bool flag)
+{
+ int result = ERR;
+
+ T((T_CALLED("intrflush(%d)"), flag));
+
+ if (cur_term != 0) {
+ TTY buf;
+
+ BEFORE("intrflush");
+ buf = cur_term->Nttyb;
+#ifdef TERMIOS
+ if (flag)
+ buf.c_lflag &= ~(NOFLSH);
+ else
+ buf.c_lflag |= (NOFLSH);
+ result = _nc_set_tty_mode(&buf);
+#else
+ /* FIXME */
+#endif
+ if (result == OK) {
+ cur_term->Nttyb = buf;
+ }
+ AFTER("intrflush");
+ }
+ returnCode(result);
+}
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