* Copyright (c) 1983 Regents of the University of California.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* 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
static char sccsid
[] = "@(#)ctl.c 5.7 (Berkeley) 3/1/91";
* This file handles haggling with the various talk daemons to
* get a socket to talk to. sockt is opened and connected in
#include <protocols/talkd.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 invitation_waiting
= 0;
my_addr
.sin_addr
= my_machine_addr
;
sockt
= socket(AF_INET
, SOCK_STREAM
, 0);
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 */
ctl_addr
.sin_addr
= my_machine_addr
;
ctl_sockt
= socket(AF_INET
, SOCK_DGRAM
, 0);
(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 */
printf("addr = %x, port = %o, family = %o zero = ",
addr
.sin_addr
, addr
.sin_port
, addr
.sin_family
);
printf("%o ", (int)addr
.sin_zero
[i
]);