cleanup, get padding and archive creation right

[unix-history] / usr / src / usr.bin / talk / get_addrs.c

/*
* Copyright (c) 1983 Regents of the University of California.
* All rights reserved.
*
* %sccs.include.redist.c%
*/

#ifndef lint
static char sccsid[] = "@(#)get_addrs.c 5.7 (Berkeley) %G%";
#endif /* not lint */

#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <protocols/talkd.h>
#include <netdb.h>
#include <stdio.h>
#include "talk_ctl.h"

get_addrs(my_machine_name, his_machine_name)
       char *my_machine_name, *his_machine_name;
{
       struct hostent *hp;
       struct servent *sp;

       msg.pid = htonl(getpid());
       /* look up the address of the local host */
       hp = gethostbyname(my_machine_name);
       if (hp == NULL) {
               fprintf(stderr, "talk: %s: ", my_machine_name);
               herror((char *)NULL);
               exit(-1);
       }
       bcopy(hp->h_addr, (char *)&my_machine_addr, hp->h_length);
       /*
        * If the callee is on-machine, just copy the
        * network address, otherwise do a lookup...
        */
       if (strcmp(his_machine_name, my_machine_name)) {
               hp = gethostbyname(his_machine_name);
               if (hp == NULL) {
                       fprintf(stderr, "talk: %s: ", his_machine_name);
                       herror((char *)NULL);
                       exit(-1);
               }
               bcopy(hp->h_addr, (char *) &his_machine_addr, hp->h_length);
       } else
               his_machine_addr = my_machine_addr;
       /* find the server's port */
       sp = getservbyname("ntalk", "udp");
       if (sp == 0) {
               fprintf(stderr, "talk: %s/%s: service is not registered.\n",
                    "ntalk", "udp");
               exit(-1);
       }
       daemon_port = sp->s_port;
}