From 999ae6be3243c7b4a815247199447b53c39a3d65 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Mon, 6 May 2024 03:26:58 +0200
Subject: Adding upstream version 1:7.9p1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 sshtty.c | 96 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 96 insertions(+)
 create mode 100644 sshtty.c

(limited to 'sshtty.c')

diff --git a/sshtty.c b/sshtty.c
new file mode 100644
index 0000000..d214ce3
--- /dev/null
+++ b/sshtty.c
@@ -0,0 +1,96 @@
+/* $OpenBSD: sshtty.c,v 1.14 2010/01/09 05:04:24 djm Exp $ */
+/*
+ * Author: Tatu Ylonen <ylo@cs.hut.fi>
+ * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
+ *                    All rights reserved
+ *
+ * As far as I am concerned, the code I have written for this software
+ * can be used freely for any purpose.  Any derived versions of this
+ * software must be clearly marked as such, and if the derived work is
+ * incompatible with the protocol description in the RFC file, it must be
+ * called by a name other than "ssh" or "Secure Shell".
+ */
+/*
+ * Copyright (c) 2001 Markus Friedl.  All rights reserved.
+ * Copyright (c) 2001 Kevin Steves.  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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ */
+
+#include "includes.h"
+
+#include <sys/types.h>
+#include <stdio.h>
+#include <termios.h>
+#include <pwd.h>
+
+#include "sshpty.h"
+
+static struct termios _saved_tio;
+static int _in_raw_mode = 0;
+
+struct termios *
+get_saved_tio(void)
+{
+	return _in_raw_mode ? &_saved_tio : NULL;
+}
+
+void
+leave_raw_mode(int quiet)
+{
+	if (!_in_raw_mode)
+		return;
+	if (tcsetattr(fileno(stdin), TCSADRAIN, &_saved_tio) == -1) {
+		if (!quiet)
+			perror("tcsetattr");
+	} else
+		_in_raw_mode = 0;
+}
+
+void
+enter_raw_mode(int quiet)
+{
+	struct termios tio;
+
+	if (tcgetattr(fileno(stdin), &tio) == -1) {
+		if (!quiet)
+			perror("tcgetattr");
+		return;
+	}
+	_saved_tio = tio;
+	tio.c_iflag |= IGNPAR;
+	tio.c_iflag &= ~(ISTRIP | INLCR | IGNCR | ICRNL | IXON | IXANY | IXOFF);
+#ifdef IUCLC
+	tio.c_iflag &= ~IUCLC;
+#endif
+	tio.c_lflag &= ~(ISIG | ICANON | ECHO | ECHOE | ECHOK | ECHONL);
+#ifdef IEXTEN
+	tio.c_lflag &= ~IEXTEN;
+#endif
+	tio.c_oflag &= ~OPOST;
+	tio.c_cc[VMIN] = 1;
+	tio.c_cc[VTIME] = 0;
+	if (tcsetattr(fileno(stdin), TCSADRAIN, &tio) == -1) {
+		if (!quiet)
+			perror("tcsetattr");
+	} else
+		_in_raw_mode = 1;
+}
-- 
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