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
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
|
/* Test for BZ #15218. Verify that getaddrinfo returns FQDN in
ai_canonname, when AI_CANONNAME is requested and search domain apply.
Copyright (C) 2025 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <resolv.h>
#include <stdlib.h>
#include <string.h>
#include <support/check.h>
#include <support/check_nss.h>
#include <support/resolv_test.h>
#include <support/support.h>
static void
response (const struct resolv_response_context *ctx,
struct resolv_response_builder *b,
const char *qname, uint16_t qclass, uint16_t qtype)
{
if (strcmp (qname, "foo.site.example") == 0
|| strcmp (qname, "bar.foo.site.example") == 0
|| strcmp (qname, "site.example") == 0)
{
struct resolv_response_flags flags = { };
resolv_response_init (b, flags);
resolv_response_add_question (b, qname, qclass, qtype);
resolv_response_section (b, ns_s_an);
if (qtype == T_A)
{
char addr_ipv4[4] = { 127, 126, 125, 124 };
resolv_response_open_record (b, qname, qclass, T_A, 0x12345678);
resolv_response_add_data (b, addr_ipv4, sizeof (addr_ipv4));
resolv_response_close_record (b);
}
else if (qtype == T_AAAA)
{
char addr_ipv6[16] =
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 };
resolv_response_open_record (b, qname, qclass, T_AAAA, 0x12345678);
resolv_response_add_data (b, addr_ipv6, sizeof (addr_ipv6));
resolv_response_close_record (b);
}
else
FAIL_EXIT1 ("qtype must be one of A, AAAA");
}
else
{
struct resolv_response_flags flags = {.rcode = ns_r_nxdomain, };
resolv_response_init (b, flags);
resolv_response_add_question (b, qname, qclass, qtype);
}
}
void
query_host (const char *host_name, const char *expected_name)
{
int family[] = { AF_INET, AF_INET6, AF_UNSPEC };
const char *family_names[] = { "AF_INET", "AF_INET6", "AF_UNSPEC" };
for (int i = 0; i < 3; i++)
{
struct addrinfo hints = {
.ai_socktype = 0,
.ai_protocol = 0,
.ai_family = family[i],
.ai_flags = AI_CANONNAME,
};
struct addrinfo *result, *current;
int res = getaddrinfo (host_name, NULL, &hints, &result);
if (res != 0)
FAIL_EXIT1 ("getaddrinfo (%s, %s): %s\n", host_name, family_names[i],
gai_strerror (res));
else
{
int count = 0;
for (current = result;
current != NULL && current->ai_canonname != NULL;
current = current->ai_next)
{
TEST_COMPARE_STRING (current->ai_canonname, expected_name);
count++;
}
freeaddrinfo (result);
if (count > 1)
FAIL_EXIT1 ("Expected exactly one canonname, but got %d\n", count);
}
}
}
/* test with site.example domain. */
void
test_search_with_site_example_domain (void)
{
struct resolv_test *aux = resolv_test_start
((struct resolv_redirect_config)
{
.response_callback = response,
.search = { "site.example" },
});
query_host ("foo", "foo.site.example");
query_host ("bar.foo", "bar.foo.site.example");
resolv_test_end (aux);
}
/* test with example domain. */
void
test_search_with_example_domain (void)
{
struct resolv_test *aux = resolv_test_start
((struct resolv_redirect_config)
{
.response_callback = response,
.search = { "example" },
});
query_host ("foo.site", "foo.site.example");
query_host ("bar.foo.site", "bar.foo.site.example");
query_host ("site", "site.example");
resolv_test_end (aux);
}
static int
do_test (void)
{
test_search_with_site_example_domain ();
test_search_with_example_domain ();
return 0;
}
#include <support/test-driver.c>
|
