2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1983, 1993
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32 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
37 static const char sccsid[] = "@(#)ctl.c 8.1 (Berkeley) 6/6/93";
41 * This file handles haggling with the various talk daemons to
42 * get a socket to talk to. sockt is opened and connected in
46 #include <sys/types.h>
47 #include <sys/socket.h>
54 struct sockaddr_in daemon_addr = { .sin_len = sizeof(daemon_addr), .sin_family = AF_INET };
55 struct sockaddr_in ctl_addr = { .sin_len = sizeof(ctl_addr), .sin_family = AF_INET };
56 struct sockaddr_in my_addr = { .sin_len = sizeof(my_addr), .sin_family = AF_INET };
58 /* inet addresses of the two machines */
59 struct in_addr my_machine_addr;
60 struct in_addr his_machine_addr;
62 u_short daemon_port; /* port number of the talk daemon */
66 int invitation_waiting = 0;
75 (void)memset(&my_addr, 0, sizeof(my_addr));
76 my_addr.sin_family = AF_INET;
77 my_addr.sin_len = sizeof(my_addr);
78 my_addr.sin_addr = my_machine_addr;
80 sockt = socket(AF_INET, SOCK_STREAM, 0);
82 p_error("Bad socket");
83 if (bind(sockt, (struct sockaddr *)&my_addr, sizeof(my_addr)) != 0)
84 p_error("Binding local socket");
85 length = sizeof(my_addr);
86 if (getsockname(sockt, (struct sockaddr *)&my_addr, &length) == -1)
87 p_error("Bad address for socket");
90 /* open the ctl socket */
96 (void)memset(&ctl_addr, 0, sizeof(ctl_addr));
97 ctl_addr.sin_family = AF_INET;
98 ctl_addr.sin_len = sizeof(my_addr);
99 ctl_addr.sin_port = 0;
100 ctl_addr.sin_addr = my_machine_addr;
101 ctl_sockt = socket(AF_INET, SOCK_DGRAM, 0);
103 p_error("Bad socket");
105 (struct sockaddr *)&ctl_addr, sizeof(ctl_addr)) != 0)
106 p_error("Couldn't bind to control socket");
107 length = sizeof(ctl_addr);
108 if (getsockname(ctl_sockt,
109 (struct sockaddr *)&ctl_addr, &length) == -1)
110 p_error("Bad address for ctl socket");
113 /* print_addr is a debug print routine */
115 print_addr(struct sockaddr_in addr)
119 printf("addr = %lx, port = %o, family = %o zero = ",
120 (u_long)addr.sin_addr.s_addr, addr.sin_port, addr.sin_family);
122 printf("%o ", (int)addr.sin_zero[i]);