141 lines
4.7 KiB
C
141 lines
4.7 KiB
C
/*
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* ++Copyright++ 1986
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* -
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* Copyright (c) 1986
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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* -
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* Portions Copyright (c) 1993 by Digital Equipment Corporation.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies, and that
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* the name of Digital Equipment Corporation not be used in advertising or
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* publicity pertaining to distribution of the document or software without
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* specific, written prior permission.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
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* WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT
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* CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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* -
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* --Copyright--
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*/
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#ifndef lint
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char copyright[] =
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"@(#) Copyright (c) 1986 Regents of the University of California.\n\
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portions Copyright (c) 1993 Digital Equipment Corporation\n\
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All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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static char sccsid[] = "@(#)nsquery.c 4.8 (Berkeley) 6/1/90";
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static char rcsid[] = "$Id: nsquery.c,v 1.2 1994/09/22 20:45:28 pst Exp $";
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/nameser.h>
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#include <arpa/inet.h>
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#include <stdio.h>
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#include <netdb.h>
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#include <resolv.h>
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#include <string.h>
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main(argc, argv)
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int argc;
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char **argv;
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{
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extern struct __res_state _res;
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register struct hostent *hp;
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register char *s;
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res_init();
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if (argc >= 2 && strcmp(argv[1], "-d") == 0) {
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_res.options |= RES_DEBUG;
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argc--;
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argv++;
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}
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if (argc < 2) {
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fprintf(stderr, "usage: nsquery [-d] host [server]\n");
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exit(1);
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}
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if (argc == 3) {
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hp = gethostbyname(argv[2]);
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if (hp == NULL) {
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fprintf(stderr, "nsquery:");
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herror(argv[2]);
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exit(1);
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}
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printf("\nServer:\n");
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printanswer(hp);
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_res.nsaddr.sin_addr = *(struct in_addr *)hp->h_addr;
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#ifdef nsaddr /* struct __res_state includes nscount and nsaddr_list[] */
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_res.nscount = 1;
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#endif
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}
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hp = gethostbyname(argv[1]);
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if (hp == NULL) {
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fprintf(stderr, "nsquery: %s: ", argv[1]);
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herror((char *)NULL);
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exit(1);
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}
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printanswer(hp);
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exit(0);
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}
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printanswer(hp)
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register struct hostent *hp;
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{
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register char **cp;
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printf("Name: %s\n", hp->h_name);
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#if BSD >= 43 || defined(h_addr)
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printf("Addresses:");
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for (cp = hp->h_addr_list; cp && *cp; cp++)
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printf(" %s", inet_ntoa(*(struct in_addr *)(*cp)));
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printf("\n");
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#else
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printf("Address: %s\n", inet_ntoa(*(struct in_addr *)hp->h_addr));
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#endif
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printf("Aliases:");
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for (cp = hp->h_aliases; cp && *cp && **cp; cp++)
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printf(" %s", *cp);
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printf("\n\n");
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}
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