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Annotation of 43BSD/ucb/talk/ctl.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1983 Regents of the University of California.
                      3:  * All rights reserved.  The Berkeley software License Agreement
                      4:  * specifies the terms and conditions for redistribution.
                      5:  */
                      6: 
                      7: #ifndef lint
                      8: static char sccsid[] = "@(#)ctl.c      5.2 (Berkeley) 3/13/86";
                      9: #endif not lint
                     10: 
                     11: /*
                     12:  * This file handles haggling with the various talk daemons to
                     13:  * get a socket to talk to. sockt is opened and connected in
                     14:  * the progress
                     15:  */
                     16: 
                     17: #include "talk_ctl.h"
                     18: 
                     19: struct sockaddr_in daemon_addr = { AF_INET };
                     20: struct sockaddr_in ctl_addr = { AF_INET };
                     21: struct sockaddr_in my_addr = { AF_INET };
                     22: 
                     23:        /* inet addresses of the two machines */
                     24: struct in_addr my_machine_addr;
                     25: struct in_addr his_machine_addr;
                     26: 
                     27: u_short daemon_port;   /* port number of the talk daemon */
                     28: 
                     29: int    ctl_sockt;
                     30: int    sockt;
                     31: int    invitation_waiting = 0;
                     32: 
                     33: CTL_MSG msg;
                     34: 
                     35: open_sockt()
                     36: {
                     37:        int length;
                     38: 
                     39:        my_addr.sin_addr = my_machine_addr;
                     40:        my_addr.sin_port = 0;
                     41:        sockt = socket(AF_INET, SOCK_STREAM, 0);
                     42:        if (sockt <= 0)
                     43:                p_error("Bad socket");
                     44:        if (bind(sockt, &my_addr, sizeof(my_addr)) != 0)
                     45:                p_error("Binding local socket");
                     46:        length = sizeof(my_addr);
                     47:        if (getsockname(sockt, &my_addr, &length) == -1)
                     48:                p_error("Bad address for socket");
                     49: }
                     50: 
                     51: /* open the ctl socket */
                     52: open_ctl() 
                     53: {
                     54:        int length;
                     55: 
                     56:        ctl_addr.sin_port = 0;
                     57:        ctl_addr.sin_addr = my_machine_addr;
                     58:        ctl_sockt = socket(AF_INET, SOCK_DGRAM, 0);
                     59:        if (ctl_sockt <= 0)
                     60:                p_error("Bad socket");
                     61:        if (bind(ctl_sockt, &ctl_addr, sizeof(ctl_addr), 0) != 0)
                     62:                p_error("Couldn't bind to control socket");
                     63:        length = sizeof(ctl_addr);
                     64:        if (getsockname(ctl_sockt, &ctl_addr, &length) == -1)
                     65:                p_error("Bad address for ctl socket");
                     66: }
                     67: 
                     68: /* print_addr is a debug print routine */
                     69: print_addr(addr)
                     70:        struct sockaddr_in addr;
                     71: {
                     72:        int i;
                     73: 
                     74:        printf("addr = %x, port = %o, family = %o zero = ",
                     75:                addr.sin_addr, addr.sin_port, addr.sin_family);
                     76:        for (i = 0; i<8;i++)
                     77:        printf("%o ", (int)addr.sin_zero[i]);
                     78:        putchar('\n');
                     79: }

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