From 5b57d28ffb6e1ef86b50f7d05d977826eae89bfe Mon Sep 17 00:00:00 2001
From: Kiyoshi Aman <kiyoshi.aman+adelie@gmail.com>
Date: Fri, 1 Feb 2019 22:55:37 +0000
Subject: initial population

---
 usr.bin/talk/ctl.c | 125 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 125 insertions(+)
 create mode 100644 usr.bin/talk/ctl.c

(limited to 'usr.bin/talk/ctl.c')

diff --git a/usr.bin/talk/ctl.c b/usr.bin/talk/ctl.c
new file mode 100644
index 0000000..ef6f924
--- /dev/null
+++ b/usr.bin/talk/ctl.c
@@ -0,0 +1,125 @@
+/*	$NetBSD: ctl.c,v 1.10 2012/03/20 20:34:59 matt Exp $	*/
+
+/*
+ * Copyright (c) 1983, 1993
+ *	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. 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.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)ctl.c	8.1 (Berkeley) 6/6/93";
+#endif
+__RCSID("$NetBSD: ctl.c,v 1.10 2012/03/20 20:34:59 matt Exp $");
+#endif /* not lint */
+
+/*
+ * This file handles haggling with the various talk daemons to
+ * get a socket to talk to. sockt is opened and connected in
+ * the progress
+ */
+
+#include "talk.h"
+#include <arpa/inet.h>
+#include "talk_ctl.h"
+
+struct	sockaddr_in daemon_addr = { sizeof(daemon_addr), AF_INET, 0, {0}, {0} };
+struct	sockaddr_in ctl_addr = { sizeof(ctl_addr), AF_INET, 0, {0}, {0} };
+struct	sockaddr_in my_addr = { sizeof(my_addr), AF_INET, 0, {0}, {0} };
+
+	/* inet addresses of the two machines */
+struct	in_addr my_machine_addr;
+struct	in_addr his_machine_addr;
+
+u_short daemon_port;	/* port number of the talk daemon */
+
+int	ctl_sockt;
+int	sockt;
+int	invitation_waiting = 0;
+
+CTL_MSG msg;
+
+void
+open_sockt(void)
+{
+	socklen_t length;
+
+	
+	(void)memset(&my_addr, 0, sizeof(my_addr));
+	my_addr.sin_family = AF_INET;
+#ifdef BSD4_4
+	my_addr.sin_len = sizeof(my_addr);
+#endif
+	my_addr.sin_addr = my_machine_addr;
+	my_addr.sin_port = 0;
+	sockt = socket(AF_INET, SOCK_STREAM, 0);
+	if (sockt == -1)
+		p_error("Bad socket");
+	if (bind(sockt, (struct sockaddr *)&my_addr, sizeof(my_addr)) != 0)
+		p_error("Binding local socket");
+	length = sizeof(my_addr);
+	if (getsockname(sockt, (struct sockaddr *)&my_addr, &length) == -1)
+		p_error("Bad address for socket");
+}
+
+/* open the ctl socket */
+void
+open_ctl(void) 
+{
+	socklen_t length;
+
+	(void)memset(&ctl_addr, 0, sizeof(ctl_addr));
+	ctl_addr.sin_family = AF_INET;
+#ifdef BSD4_4
+	ctl_addr.sin_len = sizeof(my_addr);
+#endif
+	ctl_addr.sin_port = 0;
+	ctl_addr.sin_addr = my_machine_addr;
+	ctl_sockt = socket(AF_INET, SOCK_DGRAM, 0);
+	if (ctl_sockt == -1)
+		p_error("Bad socket");
+	if (bind(ctl_sockt,
+	    (struct sockaddr *)&ctl_addr, sizeof(ctl_addr)) != 0)
+		p_error("Couldn't bind to control socket");
+	length = sizeof(ctl_addr);
+	if (getsockname(ctl_sockt,
+	    (struct sockaddr *)&ctl_addr, &length) == -1)
+		p_error("Bad address for ctl socket");
+}
+
+/* print_addr is a debug print routine */
+void
+print_addr(struct sockaddr_in addr)
+{
+	int i;
+
+	printf("addr = %s, port = %o, family = %o zero = ",
+		inet_ntoa(addr.sin_addr), addr.sin_port, addr.sin_family);
+	for (i = 0; i<8;i++)
+	printf("%o ", (int)addr.sin_zero[i]);
+	putchar('\n');
+}
-- 
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