1 /* 2 * Copyright (c) 1983, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #include <sys/cdefs.h> 35 36 __FBSDID("$FreeBSD$"); 37 38 #ifndef lint 39 static const char sccsid[] = "@(#)get_addrs.c 8.1 (Berkeley) 6/6/93"; 40 #endif 41 42 #include <err.h> 43 #include <netdb.h> 44 #include <string.h> 45 46 #include "talk.h" 47 #include "talk_ctl.h" 48 49 void 50 get_addrs(my_machine_name, his_machine_name) 51 char *my_machine_name __unused, *his_machine_name; 52 { 53 struct hostent *hp; 54 struct servent *sp; 55 56 msg.pid = htonl(getpid()); 57 58 hp = gethostbyname(his_machine_name); 59 if (hp == NULL) 60 errx(1, "%s: %s", his_machine_name, hstrerror(h_errno)); 61 bcopy(hp->h_addr, (char *) &his_machine_addr, hp->h_length); 62 if (get_iface(&his_machine_addr, &my_machine_addr) == -1) 63 err(1, "failed to find my interface address"); 64 /* find the server's port */ 65 sp = getservbyname("ntalk", "udp"); 66 if (sp == 0) 67 errx(1, "ntalk/udp: service is not registered"); 68 daemon_port = sp->s_port; 69 } 70