1 files changed, 74 insertions, 0 deletions
diff --git a/lib/libcurses/insertln.c b/lib/libcurses/insertln.c
new file mode 100644
index 000000000000..09b8b4353035
--- /dev/null
+++ b/lib/libcurses/insertln.c
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 1981 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)insertln.c	5.4 (Berkeley) 6/1/90";
+#endif /* not lint */
+
+# include	"curses.ext"
+
+/*
+ *	This routine performs an insert-line on the window, leaving
+ * (_cury,_curx) unchanged.
+ *
+ */
+winsertln(win)
+reg WINDOW	*win; {
+
+	reg chtype      *temp;
+	reg int		y;
+	reg chtype      *end;
+	reg int		x;
+
+#ifdef	DEBUG
+	fprintf(outf, "INSERTLN(%0.2o)\n", win);
+#endif
+	if (win->_orig == NULL)
+		temp = win->_y[win->_maxy - 1];
+	for (y = win->_maxy - 1; y > win->_cury; --y) {
+		if (win->_orig == NULL)
+			win->_y[y] = win->_y[y - 1];
+		else
+			bcopy(win->_y[y - 1], win->_y[y], win->_maxx * sizeof(chtype));
+		touchline(win, y, 0, win->_maxx - 1);
+	}
+	if (win->_orig == NULL)
+		win->_y[y] = temp;
+	else
+		temp = win->_y[y];
+	for (end = &temp[win->_maxx]; temp < end; )
+		*temp++ = ' ';
+	touchline(win, y, 0, win->_maxx - 1);
+	if (win->_orig == NULL)
+		_id_subwins(win);
+}