initial import of NetBSD tree

1 files changed, 95 insertions, 0 deletions

diff --git a/lib/libcurses/initscr.c b/lib/libcurses/initscr.c
new file mode 100644
index 00000000000..1af8b6f34ea
--- /dev/null
+++ b/lib/libcurses/initscr.c
@@ -0,0 +1,95 @@
+/*
+ * Copyright (c) 1981, 1993, 1994
+ *	The 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[] = "@(#)initscr.c	8.2 (Berkeley) 5/4/94";
+#endif	/* not lint */
+
+#include <signal.h>
+#include <stdlib.h>
+
+#include "curses.h"
+
+/*
+ * initscr --
+ *	Initialize the current and standard screen.
+ */
+WINDOW *
+initscr()
+{
+	register char *sp;
+
+#ifdef DEBUG
+	__CTRACE("initscr\n");
+#endif
+	__echoit = 1;
+        __pfast = __rawmode = __noqch = 0;
+
+	if (gettmode() == ERR)
+		return (NULL);
+
+	/*
+	 * If My_term is set, or can't find a terminal in the environment,
+	 * use Def_term.
+	 */
+	if (My_term || (sp = getenv("TERM")) == NULL)
+		sp = Def_term;
+	if (setterm(sp) == ERR)
+		return (NULL);
+
+	/* Need either homing or cursor motion for refreshes */
+	if (!HO && !CM) 
+		return (NULL);
+
+	if (curscr != NULL)
+		delwin(curscr);
+	if ((curscr = newwin(LINES, COLS, 0, 0)) == ERR)
+		return (NULL);
+	clearok(curscr, 1);
+
+	if (stdscr != NULL)
+		delwin(stdscr);
+	if ((stdscr = newwin(LINES, COLS, 0, 0)) == ERR) {
+		delwin(curscr);
+		return (NULL);
+	}
+
+	__set_stophandler();
+
+#ifdef DEBUG
+	__CTRACE("initscr: LINES = %d, COLS = %d\n", LINES, COLS);
+#endif
+	__startwin();
+
+	return (stdscr);
+}