diff --git a/ncurses/base/lib_insch.c b/ncurses/base/lib_insch.c
new file mode 100644
index 0000000..9166ea5
--- /dev/null
+++ b/ncurses/base/lib_insch.c
@@ -0,0 +1,155 @@
+/****************************************************************************
+ * Copyright (c) 1998-2005,2008 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: Sven Verdoolaege                                                *
+ *     and: Thomas E. Dickey                                                *
+ ****************************************************************************/
+
+/*
+**	lib_insch.c
+**
+**	The routine winsch().
+**
+*/
+
+#include <curses.priv.h>
+#include <ctype.h>
+
+MODULE_ID("$Id: lib_insch.c,v 1.25 2008/02/03 00:14:37 tom Exp $")
+
+/*
+ * Insert the given character, updating the current location to simplify
+ * inserting a string.
+ */
+NCURSES_EXPORT(int)
+_nc_insert_ch(WINDOW *win, chtype ch)
+{
+    int code = OK;
+    NCURSES_CH_T wch;
+    int count;
+    NCURSES_CONST char *s;
+
+    switch (ch) {
+    case '\t':
+	for (count = (TABSIZE - (win->_curx % TABSIZE)); count > 0; count--) {
+	    if ((code = _nc_insert_ch(win, ' ')) != OK)
+		break;
+	}
+	break;
+    case '\n':
+    case '\r':
+    case '\b':
+	SetChar2(wch, ch);
+	_nc_waddch_nosync(win, wch);
+	break;
+    default:
+	if (
+#if USE_WIDEC_SUPPORT
+	       WINDOW_EXT(win, addch_used) == 0 &&
+#endif
+	       is8bits(ChCharOf(ch)) &&
+	       isprint(ChCharOf(ch))) {
+	    if (win->_curx <= win->_maxx) {
+		struct ldat *line = &(win->_line[win->_cury]);
+		NCURSES_CH_T *end = &(line->text[win->_curx]);
+		NCURSES_CH_T *temp1 = &(line->text[win->_maxx]);
+		NCURSES_CH_T *temp2 = temp1 - 1;
+
+		SetChar2(wch, ch);
+
+		CHANGED_TO_EOL(line, win->_curx, win->_maxx);
+		while (temp1 > end)
+		    *temp1-- = *temp2--;
+
+		*temp1 = _nc_render(win, wch);
+		win->_curx++;
+	    }
+	} else if (is8bits(ChCharOf(ch)) && iscntrl(ChCharOf(ch))) {
+	    s = unctrl(ChCharOf(ch));
+	    while (*s != '\0') {
+		code = _nc_insert_ch(win, ChAttrOf(ch) | UChar(*s));
+		if (code != OK)
+		    break;
+		++s;
+	    }
+	}
+#if USE_WIDEC_SUPPORT
+	else {
+	    /*
+	     * Handle multibyte characters here
+	     */
+	    SetChar2(wch, ch);
+	    wch = _nc_render(win, wch);
+	    count = _nc_build_wch(win, &wch);
+	    if (count > 0) {
+		code = wins_wch(win, &wch);
+	    } else if (count == -1) {
+		/* handle EILSEQ */
+		if (is8bits(ch)) {
+		    s = unctrl(ChCharOf(ch));
+		    while (*s != '\0') {
+			code = _nc_insert_ch(win, ChAttrOf(ch) | UChar(*s));
+			if (code != OK)
+			    break;
+			++s;
+		    }
+		} else {
+		    code = ERR;
+		}
+	    }
+	}
+#endif
+	break;
+    }
+    return code;
+}
+
+NCURSES_EXPORT(int)
+winsch(WINDOW *win, chtype c)
+{
+    NCURSES_SIZE_T oy;
+    NCURSES_SIZE_T ox;
+    int code = ERR;
+
+    T((T_CALLED("winsch(%p, %s)"), win, _tracechtype(c)));
+
+    if (win != 0) {
+	oy = win->_cury;
+	ox = win->_curx;
+
+	code = _nc_insert_ch(win, c);
+
+	win->_curx = ox;
+	win->_cury = oy;
+	_nc_synchook(win);
+    }
+    returnCode(code);
+}