1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
/*! \file */
#include <config.h>
#include <stdio.h>
#include <isc/net.h>
#include <isc/print.h>
#include <lwres/netdb.h>
static void
print_he(struct hostent *he, int error, const char *fun, const char *name) {
char **c;
int i;
if (he != NULL) {
printf("%s(%s):\n", fun, name);
printf("\tname = %s\n", he->h_name);
printf("\taddrtype = %d\n", he->h_addrtype);
printf("\tlength = %d\n", he->h_length);
c = he->h_aliases;
i = 1;
while (*c != NULL) {
printf("\talias[%d] = %s\n", i, *c);
i++;
c++;
}
c = he->h_addr_list;
i = 1;
while (*c != NULL) {
char buf[128];
inet_ntop(he->h_addrtype, *c, buf, sizeof(buf));
printf("\taddress[%d] = %s\n", i, buf);
c++;
i++;
}
} else {
printf("%s(%s): error = %d (%s)\n", fun, name, error,
hstrerror(error));
}
}
int
main(int argc, char **argv) {
struct hostent *he;
int error;
(void)argc;
while (argv[1] != NULL) {
he = gethostbyname(argv[1]);
print_he(he, h_errno, "gethostbyname", argv[1]);
he = getipnodebyname(argv[1], AF_INET6, AI_DEFAULT|AI_ALL,
&error);
print_he(he, error, "getipnodebyname", argv[1]);
if (he != NULL)
freehostent(he);
he = getipnodebyname(argv[1], AF_INET6, AI_DEFAULT,
&error);
print_he(he, error, "getipnodebyname", argv[1]);
if (he != NULL)
freehostent(he);
argv++;
}
return (0);
}
|