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Annotation of 43BSD/etc/named/tools/nsquery.c, revision 1.1.1.1

1.1       root        1: #ifndef lint
                      2: static char sccsid[] = "@(#)nsquery.c  4.1 (Berkeley) 5/12/86";
                      3: #endif
                      4: 
                      5: /*
                      6:  * Copyright (c) 1986 Regents of the University of California
                      7:  *     All Rights Reserved
                      8:  */
                      9: 
                     10: #include <stdio.h>
                     11: #include <sys/types.h>
                     12: #include <arpa/nameser.h>
                     13: #include <netdb.h>
                     14: #include <sys/socket.h>
                     15: #include <netinet/in.h>
                     16: #include <resolv.h>
                     17: 
                     18: struct state orig;
                     19: extern struct state _res;
                     20: 
                     21: main(c, v)
                     22:        char **v;
                     23: {
                     24:        char h[32];
                     25:        register struct hostent *hp;
                     26:        register char *s;
                     27: 
                     28:        gethostname(h, 32);
                     29:        s = h;
                     30:        if (c < 2) {
                     31:                fprintf(stderr, "Usage: lookup host [server]\n");
                     32:                exit(1);
                     33:        }
                     34:        if (c > 2)
                     35:                s = v[2];
                     36: 
                     37:        hp = gethostbyname(s);
                     38:        if (hp == NULL) {
                     39:                hperror(h_errno);
                     40:                exit(1);
                     41:        }
                     42:        printanswer(hp);
                     43: 
                     44:        _res.nsaddr.sin_addr = *(struct in_addr *)hp->h_addr;
                     45:        _res.options &= ~RES_DEFNAMES;
                     46: 
                     47:        hp = gethostbyname(v[1]);
                     48:        if (hp == NULL) {
                     49:                hperror(h_errno);
                     50:                exit(1);
                     51:        }
                     52:        printanswer(hp);
                     53:        exit(0);
                     54: }
                     55: 
                     56: printanswer(hp)
                     57:        register struct hostent *hp;
                     58: {
                     59:        register char **cp;
                     60:        extern char *inet_ntoa();
                     61: 
                     62:        printf("Name: %s\n", hp->h_name);
                     63:        printf("Address: %s\n", inet_ntoa(*(struct in_addr *)hp->h_addr));
                     64:        printf("Aliases:");
                     65:        for (cp = hp->h_aliases; cp && *cp && **cp; cp++)
                     66:                printf(" %s", *cp);
                     67:        printf("\n\n");
                     68: }
                     69: 
                     70: hperror(errno) 
                     71: int errno;
                     72: {
                     73: switch(errno) {
                     74:        case HOST_NOT_FOUND:
                     75:                fprintf(stderr,"Host not found.\n");
                     76:                break;
                     77:        case TRY_AGAIN:
                     78:                fprintf(stderr,"Host not found, try again.\n");
                     79:                break;
                     80:        case NO_RECOVERY:
                     81:                fprintf(stderr,"No recovery, Host not found.\n");
                     82:                break;
                     83:        case NO_ADDRESS:
                     84:                fprintf(stderr,"No Address, look for MF record.\n");
                     85:                break;
                     86:        }
                     87: }
                     88: 

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