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 50 struct hostent *gethostbyname(); 51 struct servent *getservbyname(); 52 53 void 54 get_addrs(my_machine_name, rem_machine_name) 55 char *my_machine_name; 56 char *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