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d0aeaf5a DF |
1 | /* |
2 | * Copyright (c) 1983 Regents of the University of California. | |
f9ac90b4 KB |
3 | * All rights reserved. |
4 | * | |
af359dea C |
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. | |
d0aeaf5a DF |
32 | */ |
33 | ||
963ce42e | 34 | #ifndef lint |
af359dea | 35 | static char sccsid[] = "@(#)ctl.c 5.7 (Berkeley) 3/1/91"; |
f9ac90b4 | 36 | #endif /* not lint */ |
963ce42e MK |
37 | |
38 | /* | |
39 | * This file handles haggling with the various talk daemons to | |
40 | * get a socket to talk to. sockt is opened and connected in | |
41 | * the progress | |
5c2c7ddb MK |
42 | */ |
43 | ||
a4e94754 KB |
44 | #include <sys/types.h> |
45 | #include <sys/socket.h> | |
46 | #include <protocols/talkd.h> | |
47 | #include <netinet/in.h> | |
48 | #include "talk.h" | |
5c2c7ddb MK |
49 | #include "talk_ctl.h" |
50 | ||
5a68f059 KS |
51 | struct sockaddr_in daemon_addr = { sizeof(daemon_addr), AF_INET }; |
52 | struct sockaddr_in ctl_addr = { sizeof(ctl_addr), AF_INET }; | |
53 | struct sockaddr_in my_addr = { sizeof(my_addr), AF_INET }; | |
5c2c7ddb | 54 | |
4fa2ac2d | 55 | /* inet addresses of the two machines */ |
963ce42e MK |
56 | struct in_addr my_machine_addr; |
57 | struct in_addr his_machine_addr; | |
5c2c7ddb MK |
58 | |
59 | u_short daemon_port; /* port number of the talk daemon */ | |
60 | ||
963ce42e MK |
61 | int ctl_sockt; |
62 | int sockt; | |
63 | int invitation_waiting = 0; | |
5c2c7ddb MK |
64 | |
65 | CTL_MSG msg; | |
66 | ||
67 | open_sockt() | |
68 | { | |
4fa2ac2d | 69 | int length; |
5c2c7ddb | 70 | |
4fa2ac2d KM |
71 | my_addr.sin_addr = my_machine_addr; |
72 | my_addr.sin_port = 0; | |
73 | sockt = socket(AF_INET, SOCK_STREAM, 0); | |
74 | if (sockt <= 0) | |
75 | p_error("Bad socket"); | |
a4e94754 | 76 | if (bind(sockt, (struct sockaddr *)&my_addr, sizeof(my_addr)) != 0) |
4fa2ac2d KM |
77 | p_error("Binding local socket"); |
78 | length = sizeof(my_addr); | |
a4e94754 | 79 | if (getsockname(sockt, (struct sockaddr *)&my_addr, &length) == -1) |
4fa2ac2d | 80 | p_error("Bad address for socket"); |
5c2c7ddb MK |
81 | } |
82 | ||
963ce42e | 83 | /* open the ctl socket */ |
5c2c7ddb MK |
84 | open_ctl() |
85 | { | |
4fa2ac2d | 86 | int length; |
5c2c7ddb | 87 | |
4fa2ac2d KM |
88 | ctl_addr.sin_port = 0; |
89 | ctl_addr.sin_addr = my_machine_addr; | |
90 | ctl_sockt = socket(AF_INET, SOCK_DGRAM, 0); | |
91 | if (ctl_sockt <= 0) | |
92 | p_error("Bad socket"); | |
a4e94754 KB |
93 | if (bind(ctl_sockt, |
94 | (struct sockaddr *)&ctl_addr, sizeof(ctl_addr)) != 0) | |
4fa2ac2d KM |
95 | p_error("Couldn't bind to control socket"); |
96 | length = sizeof(ctl_addr); | |
a4e94754 KB |
97 | if (getsockname(ctl_sockt, |
98 | (struct sockaddr *)&ctl_addr, &length) == -1) | |
4fa2ac2d | 99 | p_error("Bad address for ctl socket"); |
5c2c7ddb MK |
100 | } |
101 | ||
102 | /* print_addr is a debug print routine */ | |
5c2c7ddb | 103 | print_addr(addr) |
4fa2ac2d | 104 | struct sockaddr_in addr; |
5c2c7ddb | 105 | { |
4fa2ac2d | 106 | int i; |
5c2c7ddb | 107 | |
4fa2ac2d KM |
108 | printf("addr = %x, port = %o, family = %o zero = ", |
109 | addr.sin_addr, addr.sin_port, addr.sin_family); | |
110 | for (i = 0; i<8;i++) | |
5c2c7ddb | 111 | printf("%o ", (int)addr.sin_zero[i]); |
4fa2ac2d | 112 | putchar('\n'); |
5c2c7ddb | 113 | } |