127 lines
4.0 KiB
C
127 lines
4.0 KiB
C
/*
|
|
* 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. 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#ifndef lint
|
|
static const char sccsid[] = "@(#)ctl.c 8.1 (Berkeley) 6/6/93";
|
|
#endif
|
|
|
|
/*
|
|
* 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 <sys/types.h>
|
|
#include <sys/socket.h>
|
|
|
|
#include <string.h>
|
|
|
|
#include "talk.h"
|
|
|
|
struct sockaddr_in daemon_addr = { sizeof(daemon_addr), AF_INET };
|
|
struct sockaddr_in ctl_addr = { sizeof(ctl_addr), AF_INET };
|
|
struct sockaddr_in my_addr = { sizeof(my_addr), AF_INET };
|
|
|
|
/* 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()
|
|
{
|
|
socklen_t length;
|
|
|
|
(void)memset(&my_addr, 0, sizeof(my_addr));
|
|
my_addr.sin_family = AF_INET;
|
|
my_addr.sin_len = sizeof(my_addr);
|
|
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()
|
|
{
|
|
socklen_t length;
|
|
|
|
(void)memset(&ctl_addr, 0, sizeof(ctl_addr));
|
|
ctl_addr.sin_family = AF_INET;
|
|
ctl_addr.sin_len = sizeof(my_addr);
|
|
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(addr)
|
|
struct sockaddr_in addr;
|
|
{
|
|
int i;
|
|
|
|
printf("addr = %lx, port = %o, family = %o zero = ",
|
|
(u_long)addr.sin_addr.s_addr, addr.sin_port, addr.sin_family);
|
|
for (i = 0; i<8;i++)
|
|
printf("%o ", (int)addr.sin_zero[i]);
|
|
putchar('\n');
|
|
}
|