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Annotation of 43BSDReno/usr.sbin/named/tools/nsquery/nsquery.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1986 Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms are permitted provided
        !             6:  * that: (1) source distributions retain this entire copyright notice and
        !             7:  * comment, and (2) distributions including binaries display the following
        !             8:  * acknowledgement:  ``This product includes software developed by the
        !             9:  * University of California, Berkeley and its contributors'' in the
        !            10:  * documentation or other materials provided with the distribution and in
        !            11:  * all advertising materials mentioning features or use of this software.
        !            12:  * Neither the name of the University nor the names of its contributors may
        !            13:  * be used to endorse or promote products derived from this software without
        !            14:  * specific prior written permission.
        !            15:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
        !            16:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
        !            17:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            18:  */
        !            19: 
        !            20: #ifndef lint
        !            21: char copyright[] =
        !            22: "@(#) Copyright (c) 1986 Regents of the University of California.\n\
        !            23:  All rights reserved.\n";
        !            24: #endif /* not lint */
        !            25: 
        !            26: #ifndef lint
        !            27: static char sccsid[] = "@(#)nsquery.c  4.8 (Berkeley) 6/1/90";
        !            28: #endif /* not lint */
        !            29: 
        !            30: #include <sys/param.h>
        !            31: #include <arpa/nameser.h>
        !            32: #include <netdb.h>
        !            33: #include <sys/socket.h>
        !            34: #include <netinet/in.h>
        !            35: #include <resolv.h>
        !            36: #include <stdio.h>
        !            37: 
        !            38: main(argc, argv)
        !            39:        int argc;
        !            40:        char **argv;
        !            41: {
        !            42:        extern struct state _res;
        !            43:        register struct hostent *hp;
        !            44:        register char *s;
        !            45: 
        !            46:        if (argc >= 2 && strcmp(argv[1], "-d") == 0) {
        !            47:                _res.options |= RES_DEBUG;
        !            48:                argc--;
        !            49:                argv++;
        !            50:        }
        !            51:        if (argc < 2) {
        !            52:                fprintf(stderr, "usage: nsquery [-d] host [server]\n");
        !            53:                exit(1);
        !            54:        }
        !            55:        if (argc == 3) {
        !            56:                hp = gethostbyname(argv[2]);
        !            57:                if (hp == NULL) {
        !            58:                        fprintf(stderr, "nsquery:");
        !            59:                        herror(argv[2]);
        !            60:                        exit(1);
        !            61:                }
        !            62:                printf("\nServer:\n");
        !            63:                printanswer(hp);
        !            64:                _res.nsaddr.sin_addr = *(struct in_addr *)hp->h_addr;
        !            65:        }
        !            66: 
        !            67:        hp = gethostbyname(argv[1]);
        !            68:        if (hp == NULL) {
        !            69:                fprintf(stderr, "nsquery: %s: ", argv[1]);
        !            70:                herror((char *)NULL);
        !            71:                exit(1);
        !            72:        }
        !            73:        printanswer(hp);
        !            74:        exit(0);
        !            75: }
        !            76: 
        !            77: printanswer(hp)
        !            78:        register struct hostent *hp;
        !            79: {
        !            80:        register char **cp;
        !            81:        extern char *inet_ntoa();
        !            82: 
        !            83:        printf("Name: %s\n", hp->h_name);
        !            84: #if BSD >= 43 || defined(h_addr)
        !            85:        printf("Addresses:");
        !            86:        for (cp = hp->h_addr_list; cp && *cp; cp++)
        !            87:                printf(" %s", inet_ntoa(*(struct in_addr *)(*cp)));
        !            88:        printf("\n");
        !            89: #else
        !            90:        printf("Address: %s\n", inet_ntoa(*(struct in_addr *)hp->h_addr));
        !            91: #endif
        !            92:        printf("Aliases:");
        !            93:        for (cp = hp->h_aliases; cp && *cp && **cp; cp++)
        !            94:                printf(" %s", *cp);
        !            95:        printf("\n\n");
        !            96: }

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