BSD 4_3_Net_2 release

[unix-history] / usr / src / usr.sbin / named / tools / nsquery / nsquery.c

/*
* Copyright (c) 1986 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
*    must display the following acknowledgement:
*      This product includes software developed by the University of
*      California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
*    may be used to endorse or promote products derived from this software
*    without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/

#ifndef lint
char copyright[] =
"@(#) Copyright (c) 1986 Regents of the University of California.\n\
All rights reserved.\n";
#endif /* not lint */

#ifndef lint
static char sccsid[] = "@(#)nsquery.c   4.8 (Berkeley) 6/1/90";
#endif /* not lint */

#include <sys/param.h>
#include <arpa/nameser.h>
#include <netdb.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <resolv.h>
#include <stdio.h>

main(argc, argv)
       int argc;
       char **argv;
{
       extern struct state _res;
       register struct hostent *hp;
       register char *s;

       if (argc >= 2 && strcmp(argv[1], "-d") == 0) {
               _res.options |= RES_DEBUG;
               argc--;
               argv++;
       }
       if (argc < 2) {
               fprintf(stderr, "usage: nsquery [-d] host [server]\n");
               exit(1);
       }
       if (argc == 3) {
               hp = gethostbyname(argv[2]);
               if (hp == NULL) {
                       fprintf(stderr, "nsquery:");
                       herror(argv[2]);
                       exit(1);
               }
               printf("\nServer:\n");
               printanswer(hp);
               _res.nsaddr.sin_addr = *(struct in_addr *)hp->h_addr;
       }

       hp = gethostbyname(argv[1]);
       if (hp == NULL) {
               fprintf(stderr, "nsquery: %s: ", argv[1]);
               herror((char *)NULL);
               exit(1);
       }
       printanswer(hp);
       exit(0);
}

printanswer(hp)
       register struct hostent *hp;
{
       register char **cp;
       extern char *inet_ntoa();

       printf("Name: %s\n", hp->h_name);
#if BSD >= 43 || defined(h_addr)
       printf("Addresses:");
       for (cp = hp->h_addr_list; cp && *cp; cp++)
               printf(" %s", inet_ntoa(*(struct in_addr *)(*cp)));
       printf("\n");
#else
       printf("Address: %s\n", inet_ntoa(*(struct in_addr *)hp->h_addr));
#endif
       printf("Aliases:");
       for (cp = hp->h_aliases; cp && *cp && **cp; cp++)
               printf(" %s", *cp);
       printf("\n\n");
}