11590Srgrimes/* 21590Srgrimes * Copyright (c) 1983, 1993 31590Srgrimes * The Regents of the University of California. All rights reserved. 41590Srgrimes * 51590Srgrimes * Redistribution and use in source and binary forms, with or without 61590Srgrimes * modification, are permitted provided that the following conditions 71590Srgrimes * are met: 81590Srgrimes * 1. Redistributions of source code must retain the above copyright 91590Srgrimes * notice, this list of conditions and the following disclaimer. 101590Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111590Srgrimes * notice, this list of conditions and the following disclaimer in the 121590Srgrimes * documentation and/or other materials provided with the distribution. 131590Srgrimes * 4. Neither the name of the University nor the names of its contributors 141590Srgrimes * may be used to endorse or promote products derived from this software 151590Srgrimes * without specific prior written permission. 161590Srgrimes * 171590Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 181590Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 191590Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 201590Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 211590Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 221590Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 231590Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 241590Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 251590Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 261590Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 271590Srgrimes * SUCH DAMAGE. 281590Srgrimes */ 291590Srgrimes 3087710Smarkm#include <sys/cdefs.h> 3187710Smarkm 3287710Smarkm__FBSDID("$FreeBSD$"); 3387710Smarkm 341590Srgrimes#ifndef lint 3587710Smarkmstatic const char sccsid[] = "@(#)ctl.c 8.1 (Berkeley) 6/6/93"; 3632503Scharnier#endif 371590Srgrimes 381590Srgrimes/* 391590Srgrimes * This file handles haggling with the various talk daemons to 401590Srgrimes * get a socket to talk to. sockt is opened and connected in 411590Srgrimes * the progress 421590Srgrimes */ 431590Srgrimes 441590Srgrimes#include <sys/types.h> 451590Srgrimes#include <sys/socket.h> 46141563Sstefanf 47141563Sstefanf#include <string.h> 48141563Sstefanf 491590Srgrimes#include "talk.h" 501590Srgrimes 51178642Sdelphijstruct sockaddr_in daemon_addr = { .sin_len = sizeof(daemon_addr), .sin_family = AF_INET }; 52178642Sdelphijstruct sockaddr_in ctl_addr = { .sin_len = sizeof(ctl_addr), .sin_family = AF_INET }; 53178642Sdelphijstruct sockaddr_in my_addr = { .sin_len = sizeof(my_addr), .sin_family = AF_INET }; 541590Srgrimes 551590Srgrimes /* inet addresses of the two machines */ 561590Srgrimesstruct in_addr my_machine_addr; 571590Srgrimesstruct in_addr his_machine_addr; 581590Srgrimes 591590Srgrimesu_short daemon_port; /* port number of the talk daemon */ 601590Srgrimes 611590Srgrimesint ctl_sockt; 621590Srgrimesint sockt; 631590Srgrimesint invitation_waiting = 0; 641590Srgrimes 651590SrgrimesCTL_MSG msg; 661590Srgrimes 6714443Sjoergvoid 68178642Sdelphijopen_sockt(void) 691590Srgrimes{ 70127263Scperciva socklen_t length; 711590Srgrimes 72120550Stjr (void)memset(&my_addr, 0, sizeof(my_addr)); 73120550Stjr my_addr.sin_family = AF_INET; 74120550Stjr my_addr.sin_len = sizeof(my_addr); 751590Srgrimes my_addr.sin_addr = my_machine_addr; 761590Srgrimes my_addr.sin_port = 0; 771590Srgrimes sockt = socket(AF_INET, SOCK_STREAM, 0); 78127263Scperciva if (sockt == -1) 791590Srgrimes p_error("Bad socket"); 801590Srgrimes if (bind(sockt, (struct sockaddr *)&my_addr, sizeof(my_addr)) != 0) 811590Srgrimes p_error("Binding local socket"); 821590Srgrimes length = sizeof(my_addr); 831590Srgrimes if (getsockname(sockt, (struct sockaddr *)&my_addr, &length) == -1) 841590Srgrimes p_error("Bad address for socket"); 851590Srgrimes} 861590Srgrimes 871590Srgrimes/* open the ctl socket */ 8814443Sjoergvoid 89178642Sdelphijopen_ctl(void) 901590Srgrimes{ 91127263Scperciva socklen_t length; 921590Srgrimes 93120550Stjr (void)memset(&ctl_addr, 0, sizeof(ctl_addr)); 94120550Stjr ctl_addr.sin_family = AF_INET; 95120550Stjr ctl_addr.sin_len = sizeof(my_addr); 961590Srgrimes ctl_addr.sin_port = 0; 971590Srgrimes ctl_addr.sin_addr = my_machine_addr; 981590Srgrimes ctl_sockt = socket(AF_INET, SOCK_DGRAM, 0); 99127263Scperciva if (ctl_sockt == -1) 1001590Srgrimes p_error("Bad socket"); 1011590Srgrimes if (bind(ctl_sockt, 1021590Srgrimes (struct sockaddr *)&ctl_addr, sizeof(ctl_addr)) != 0) 1031590Srgrimes p_error("Couldn't bind to control socket"); 1041590Srgrimes length = sizeof(ctl_addr); 1051590Srgrimes if (getsockname(ctl_sockt, 1061590Srgrimes (struct sockaddr *)&ctl_addr, &length) == -1) 1071590Srgrimes p_error("Bad address for ctl socket"); 1081590Srgrimes} 1091590Srgrimes 1101590Srgrimes/* print_addr is a debug print routine */ 11114443Sjoergvoid 112178642Sdelphijprint_addr(struct sockaddr_in addr) 1131590Srgrimes{ 1141590Srgrimes int i; 1151590Srgrimes 11614443Sjoerg printf("addr = %lx, port = %o, family = %o zero = ", 11737453Sbde (u_long)addr.sin_addr.s_addr, addr.sin_port, addr.sin_family); 1181590Srgrimes for (i = 0; i<8;i++) 1191590Srgrimes printf("%o ", (int)addr.sin_zero[i]); 1201590Srgrimes putchar('\n'); 1211590Srgrimes} 122