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d0aeaf5a DF |
1 | /* |
2 | * Copyright (c) 1983 Regents of the University of California. | |
f9ac90b4 KB |
3 | * All rights reserved. |
4 | * | |
cb956e54 | 5 | * %sccs.include.redist.c% |
d0aeaf5a DF |
6 | */ |
7 | ||
963ce42e | 8 | #ifndef lint |
a4e94754 | 9 | static char sccsid[] = "@(#)get_addrs.c 5.7 (Berkeley) %G%"; |
f9ac90b4 | 10 | #endif /* not lint */ |
955a40d4 | 11 | |
a4e94754 KB |
12 | #include <sys/types.h> |
13 | #include <sys/socket.h> | |
14 | #include <netinet/in.h> | |
15 | #include <protocols/talkd.h> | |
4fa2ac2d | 16 | #include <netdb.h> |
a4e94754 KB |
17 | #include <stdio.h> |
18 | #include "talk_ctl.h" | |
955a40d4 MK |
19 | |
20 | get_addrs(my_machine_name, his_machine_name) | |
4fa2ac2d | 21 | char *my_machine_name, *his_machine_name; |
955a40d4 | 22 | { |
963ce42e MK |
23 | struct hostent *hp; |
24 | struct servent *sp; | |
955a40d4 | 25 | |
4fa2ac2d | 26 | msg.pid = htonl(getpid()); |
955a40d4 | 27 | /* look up the address of the local host */ |
963ce42e | 28 | hp = gethostbyname(my_machine_name); |
7620b226 KB |
29 | if (hp == NULL) { |
30 | fprintf(stderr, "talk: %s: ", my_machine_name); | |
31 | herror((char *)NULL); | |
963ce42e | 32 | exit(-1); |
955a40d4 | 33 | } |
963ce42e | 34 | bcopy(hp->h_addr, (char *)&my_machine_addr, hp->h_length); |
4fa2ac2d KM |
35 | /* |
36 | * If the callee is on-machine, just copy the | |
37 | * network address, otherwise do a lookup... | |
38 | */ | |
39 | if (strcmp(his_machine_name, my_machine_name)) { | |
963ce42e | 40 | hp = gethostbyname(his_machine_name); |
7620b226 KB |
41 | if (hp == NULL) { |
42 | fprintf(stderr, "talk: %s: ", his_machine_name); | |
43 | herror((char *)NULL); | |
963ce42e MK |
44 | exit(-1); |
45 | } | |
46 | bcopy(hp->h_addr, (char *) &his_machine_addr, hp->h_length); | |
4fa2ac2d KM |
47 | } else |
48 | his_machine_addr = my_machine_addr; | |
49 | /* find the server's port */ | |
50 | sp = getservbyname("ntalk", "udp"); | |
963ce42e | 51 | if (sp == 0) { |
4fa2ac2d KM |
52 | fprintf(stderr, "talk: %s/%s: service is not registered.\n", |
53 | "ntalk", "udp"); | |
963ce42e MK |
54 | exit(-1); |
55 | } | |
56 | daemon_port = sp->s_port; | |
955a40d4 | 57 | } |