1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*
23 * Copyright 1997 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27/*	Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T	*/
28/*	  All Rights Reserved  	*/
29
30/*
31 * University Copyright- Copyright (c) 1982, 1986, 1988
32 * The Regents of the University of California
33 * All Rights Reserved
34 *
35 * University Acknowledgment- Portions of this document are derived from
36 * software developed by the University of California, Berkeley, and its
37 * contributors.
38 */
39
40#pragma ident	"%Z%%M%	%I%	%E% SMI"
41
42#include "talk_ctl.h"
43#include <locale.h>
44
45#ifdef SYSV
46#define	bcmp(a, b, c)	memcmp((a), (b), (c))
47#define	bcopy(a, b, c)	memcpy((b), (a), (c))
48#endif /* SYSV */
49
50struct hostent *gethostbyname();
51struct servent *getservbyname();
52
53void
54get_addrs(my_machine_name, rem_machine_name)
55char *my_machine_name;
56char *rem_machine_name;
57{
58	struct hostent *hp;
59	struct servent *sp;
60
61	msg.pid = getpid();
62
63	/* look up the address of the local host */
64
65	hp = gethostbyname(my_machine_name);
66
67	if (hp == (struct hostent *) 0) {
68		fprintf(stderr,
69		gettext("This machine doesn't exist. Boy, am I confused!\n"));
70		exit(1);
71	}
72
73	if (hp->h_addrtype != AF_INET) {
74		fprintf(stderr,
75		gettext("Protocol mix up with local machine address\n"));
76		exit(1);
77	}
78
79	bcopy(hp->h_addr, (char *)&my_machine_addr, hp->h_length);
80
81	/* if on the same machine, then simply copy */
82
83	if (bcmp((char *)&rem_machine_name, (char *)&my_machine_name,
84		sizeof (rem_machine_name)) == 0) {
85	bcopy((char *)&my_machine_addr, (char *)&rem_machine_addr,
86		sizeof (rem_machine_name));
87	} else {
88
89		if ((rem_machine_addr.s_addr =
90			(unsigned long)inet_addr(rem_machine_name)) == -1) {
91
92		/* look up the address of the recipient's machine */
93
94		hp = gethostbyname(rem_machine_name);
95
96		if (hp == (struct hostent *) 0) {
97			fprintf(stderr,
98			gettext("%s is an unknown host\n"), rem_machine_name);
99			exit(1);
100		}
101
102		if (hp->h_addrtype != AF_INET) {
103			fprintf(stderr,
104		gettext("Protocol mix up with remote machine address\n"));
105			exit(1);
106		}
107
108		bcopy(hp->h_addr, (char *) &rem_machine_addr, hp->h_length);
109	}
110	}
111
112
113	/* find the daemon portal */
114
115#ifdef NTALK
116	sp = getservbyname("ntalk", "udp");
117#else
118	sp = getservbyname("talk", "udp");
119#endif
120
121	if (strcmp(sp->s_proto, "udp") != 0) {
122	fprintf(stderr, gettext("Protocol mix up with talk daemon\n"));
123	exit(1);
124	}
125
126	if (sp == 0) {
127		p_error(
128		gettext("This machine doesn't support a tcp talk daemon"));
129		exit(1);
130	}
131
132	daemon_port = sp->s_port;
133}
134