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- /*
- * 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.
- */
-
- #ifndef lint
- static char sccsid[] = "@(#)ctl.c 8.1 (Berkeley) 6/6/93";
- #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
- */
-
- #ifdef HAVE_CONFIG_H
- #include <config.h>
- #endif
-
- #include <sys/types.h>
- #include <sys/socket.h>
- #ifndef HAVE_OSOCKADDR
- #include <osockaddr.h>
- #endif
- #include <protocols/talkd.h>
- #include <netinet/in.h>
- #include "talk.h"
- #include "talk_ctl.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;
-
- open_sockt()
- {
- int length;
-
- my_addr.sin_addr = my_machine_addr;
- my_addr.sin_port = 0;
- sockt = socket(AF_INET, SOCK_STREAM, 0);
- if (sockt <= 0)
- 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 */
- open_ctl()
- {
- int length;
-
- ctl_addr.sin_port = 0;
- ctl_addr.sin_addr = my_machine_addr;
- ctl_sockt = socket(AF_INET, SOCK_DGRAM, 0);
- if (ctl_sockt <= 0)
- 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 */
- print_addr(addr)
- struct sockaddr_in addr;
- {
- int i;
-
- printf("addr = %x, port = %o, family = %o zero = ",
- addr.sin_addr, addr.sin_port, addr.sin_family);
- for (i = 0; i<8;i++)
- printf("%o ", (int)addr.sin_zero[i]);
- putchar('\n');
- }
-