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/* Basic functionality tests for inet6 option processing.
Copyright (C) 2016-2017 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
<http://www.gnu.org/licenses/>. */
#include <netdb.h>
#include <resolv.h>
#include <string.h>
#include <support/check_nss.h>
#include <support/resolv_test.h>
#include <support/xthread.h>
static void
response (const struct resolv_response_context *ctx,
struct resolv_response_builder *b,
const char *qname, uint16_t qclass, uint16_t qtype)
{
bool include_both = strcmp (qname, "both.example") == 0;
bool include_a = qtype == T_A || include_both;
bool include_aaaa = qtype == T_AAAA || include_both;
resolv_response_init (b, (struct resolv_response_flags) {});
resolv_response_add_question (b, qname, qclass, qtype);
resolv_response_section (b, ns_s_an);
if (include_a)
{
char ipv4[4] = {192, 0, 2, 17};
resolv_response_open_record (b, qname, qclass, T_A, 0);
resolv_response_add_data (b, &ipv4, sizeof (ipv4));
resolv_response_close_record (b);
}
if (include_aaaa)
{
char ipv6[16]
= {0x20, 0x01, 0xd, 0xb8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1};
resolv_response_open_record (b, qname, qclass, T_AAAA, 0);
resolv_response_add_data (b, &ipv6, sizeof (ipv6));
resolv_response_close_record (b);
}
}
/* Test that getaddrinfo is not influenced by RES_USE_INET6. */
static void
test_gai (void)
{
{
struct addrinfo hints =
{
.ai_family = AF_UNSPEC,
.ai_socktype = SOCK_STREAM,
.ai_protocol = IPPROTO_TCP,
};
struct addrinfo *ai;
int ret = getaddrinfo ("www1.example", "80", &hints, &ai);
check_addrinfo ("getaddrinfo AF_UNSPEC www1.example", ai, ret,
"address: STREAM/TCP 192.0.2.17 80\n"
"address: STREAM/TCP 2001:db8::1 80\n");
if (ret == 0)
freeaddrinfo (ai);
ret = getaddrinfo ("both.example", "80", &hints, &ai);
/* Combined A/AAAA responses currently result in address
duplication. */
check_addrinfo ("getaddrinfo AF_UNSPEC both.example", ai, ret,
"address: STREAM/TCP 192.0.2.17 80\n"
"address: STREAM/TCP 192.0.2.17 80\n"
"address: STREAM/TCP 2001:db8::1 80\n"
"address: STREAM/TCP 2001:db8::1 80\n");
if (ret == 0)
freeaddrinfo (ai);
}
{
struct addrinfo hints =
{
.ai_family = AF_INET,
.ai_socktype = SOCK_STREAM,
.ai_protocol = IPPROTO_TCP,
};
struct addrinfo *ai;
int ret = getaddrinfo ("www1.example", "80", &hints, &ai);
check_addrinfo ("getaddrinfo AF_INET www1.example", ai, ret,
"address: STREAM/TCP 192.0.2.17 80\n");
if (ret == 0)
freeaddrinfo (ai);
ret = getaddrinfo ("both.example", "80", &hints, &ai);
check_addrinfo ("getaddrinfo AF_INET both.example", ai, ret,
"address: STREAM/TCP 192.0.2.17 80\n");
if (ret == 0)
freeaddrinfo (ai);
}
{
struct addrinfo hints =
{
.ai_family = AF_INET6,
.ai_socktype = SOCK_STREAM,
.ai_protocol = IPPROTO_TCP,
};
struct addrinfo *ai;
int ret = getaddrinfo ("www1.example", "80", &hints, &ai);
check_addrinfo ("getaddrinfo (AF_INET6)", ai, ret,
"address: STREAM/TCP 2001:db8::1 80\n");
if (ret == 0)
freeaddrinfo (ai);
ret = getaddrinfo ("both.example", "80", &hints, &ai);
check_addrinfo ("getaddrinfo AF_INET6 both.example", ai, ret,
"address: STREAM/TCP 2001:db8::1 80\n");
if (ret == 0)
freeaddrinfo (ai);
}
}
/* Test that gethostbyname2 is not influenced by RES_USE_INET6. */
static void
test_get2 (void)
{
check_hostent ("gethostbyname2 AF_INET www1.example",
gethostbyname2 ("www1.example", AF_INET),
"name: www1.example\n"
"address: 192.0.2.17\n");
check_hostent ("gethostbyname2 AF_INET both.example",
gethostbyname2 ("both.example", AF_INET),
"name: both.example\n"
"address: 192.0.2.17\n");
check_hostent ("gethostbyname2 AF_INET6 www1.example",
gethostbyname2 ("www1.example", AF_INET6),
"name: www1.example\n"
"address: 2001:db8::1\n");
check_hostent ("gethostbyname2 AF_INET6 both.example",
gethostbyname2 ("both.example", AF_INET6),
"name: both.example\n"
"address: 2001:db8::1\n");
}
static void *
threadfunc (void *ignored)
{
struct resolv_test *obj = resolv_test_start
((struct resolv_redirect_config)
{
.response_callback = response
});
check_hostent ("gethostbyname (\"www1.example\")",
gethostbyname ("www1.example"),
"name: www1.example\n"
"address: 192.0.2.17\n");
check_hostent ("gethostbyname (\"both.example\")",
gethostbyname ("both.example"),
"name: both.example\n"
"address: 192.0.2.17\n");
test_get2 ();
test_gai ();
_res.options |= RES_USE_INET6;
check_hostent ("gethostbyname (\"www1.example\")",
gethostbyname ("www1.example"),
"name: www1.example\n"
"address: 2001:db8::1\n");
check_hostent ("gethostbyname (\"both.example\")",
gethostbyname ("both.example"),
"name: both.example\n"
"address: 2001:db8::1\n");
test_get2 ();
test_gai ();
resolv_test_end (obj);
return NULL;
}
static int
do_test (void)
{
resolv_test_init ();
/* Attempt to run on a non-main thread first. */
{
pthread_t thr = xpthread_create (NULL, threadfunc, NULL);
xpthread_join (thr);
}
/* Try the main thread next. */
threadfunc (NULL);
return 0;
}
#include <support/test-driver.c>
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