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/* Test getaddrinfo and getnameinfo without usable libidn2.
Copyright (C) 2018-2025 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/>. */
#define TEST_USE_UTF8 1
#include "tst-resolv-ai_idn-common.c"
#include <locale.h>
#include <support/xdlfcn.h>
/* Tests for getaddrinfo. */
static void
gai_tests (void)
{
/* No CNAME. */
check_ai ("non-idn.example", 0,
"address: STREAM/TCP 192.0.2.110 80\n");
check_ai ("non-idn.example", AI_IDN,
"flags: AI_IDN\n"
"address: STREAM/TCP 192.0.2.110 80\n");
check_ai ("non-idn.example", AI_IDN | AI_CANONNAME | AI_CANONIDN,
"flags: AI_CANONNAME AI_IDN AI_CANONIDN\n"
"canonname: non-idn.example\n"
"address: STREAM/TCP 192.0.2.110 80\n");
/* This gets passed over the network to the server, so it will
result in an NXDOMAIN error. */
check_ai (NAEMCHEN ".example", 0,
"error: Name or service not known\n");
/* Due to missing libidn2, this fails inside getaddrinfo. */
check_ai (NAEMCHEN ".example", AI_IDN,
"error: Parameter string not correctly encoded\n");
check_ai (NAEMCHEN ".example", AI_IDN | AI_CANONNAME | AI_CANONIDN,
"error: Parameter string not correctly encoded\n");
/* Non-IDN CNAME. */
check_ai ("with.cname.example", 0,
"address: STREAM/TCP 192.0.2.119 80\n");
check_ai ("with.cname.example", AI_IDN,
"flags: AI_IDN\n"
"address: STREAM/TCP 192.0.2.119 80\n");
check_ai ("with.cname.example", AI_IDN | AI_CANONNAME | AI_CANONIDN,
"flags: AI_CANONNAME AI_IDN AI_CANONIDN\n"
"canonname: non-idn-cname.example\n"
"address: STREAM/TCP 192.0.2.119 80\n");
/* IDN CNAME. */
check_ai ("With.idn-cname.example", 0,
"address: STREAM/TCP 192.0.2.87 80\n");
check_ai ("With.idn-cname.example", AI_IDN,
"flags: AI_IDN\n"
"address: STREAM/TCP 192.0.2.87 80\n");
check_ai ("With.idn-cname.example", AI_IDN | AI_CANONNAME,
"flags: AI_CANONNAME AI_IDN\n"
"canonname: " ANDERES_NAEMCHEN_IDNA ".example\n"
"address: STREAM/TCP 192.0.2.87 80\n");
check_ai ("With.idn-cname.example",
AI_IDN | AI_CANONNAME | AI_CANONIDN,
"flags: AI_CANONNAME AI_IDN AI_CANONIDN\n"
"canonname: " ANDERES_NAEMCHEN_IDNA ".example\n"
"address: STREAM/TCP 192.0.2.87 80\n");
/* Non-IDN to IDN CNAME chain. */
check_ai ("both.cname.idn-cname.example", 0,
"address: STREAM/TCP 192.0.2.98 80\n");
check_ai ("both.cname.idn-cname.example", AI_IDN,
"flags: AI_IDN\n"
"address: STREAM/TCP 192.0.2.98 80\n");
check_ai ("both.cname.idn-cname.example", AI_IDN | AI_CANONNAME,
"flags: AI_CANONNAME AI_IDN\n"
"canonname: " ANDERES_NAEMCHEN_IDNA ".example\n"
"address: STREAM/TCP 192.0.2.98 80\n");
check_ai ("both.cname.idn-cname.example",
AI_IDN | AI_CANONNAME | AI_CANONIDN,
"flags: AI_CANONNAME AI_IDN AI_CANONIDN\n"
"canonname: " ANDERES_NAEMCHEN_IDNA ".example\n"
"address: STREAM/TCP 192.0.2.98 80\n");
}
/* Tests for getnameinfo. */
static void
gni_tests (void)
{
/* All non-IDN an IDN results are the same due to lack of libidn2
support. */
for (int do_ni_idn = 0; do_ni_idn < 2; ++do_ni_idn)
{
int flags = 0;
if (do_ni_idn)
flags |= NI_IDN;
gni_test (gni_non_idn_name, flags, "non-idn.example");
gni_test (gni_non_idn_name, flags | NI_NUMERICHOST, "192.0.2.0");
gni_test (gni_non_idn_cname_to_non_idn_name, flags,
"non-idn-name.example");
gni_test (gni_non_idn_cname_to_idn_name, flags,
NAEMCHEN_IDNA ".example");
gni_test (gni_idn_name, flags, NAEMCHEN_IDNA ".example");
gni_test (gni_idn_cname_to_non_idn_name, flags, "non-idn-name.example");
gni_test (gni_idn_cname_to_idn_name, flags,
ANDERES_NAEMCHEN_IDNA ".example");
/* Test encoding errors. */
gni_test (gni_invalid_idn_1, flags, "xn---.example");
gni_test (gni_invalid_idn_2, flags, "xn--x.example");
}
}
static int
do_test (void)
{
void *handle = xdlopen ("tst-no-libidn2.so", RTLD_LAZY);
{
/* Verify that this replaced libidn2. */
void *handle2 = xdlopen (LIBIDN2_SONAME, RTLD_LAZY | RTLD_NOLOAD);
TEST_VERIFY (handle2 == handle);
xdlclose (handle2);
}
if (setlocale (LC_CTYPE, "en_US.UTF-8") == NULL)
FAIL_EXIT1 ("setlocale: %m");
struct resolv_test *aux = resolv_test_start
((struct resolv_redirect_config)
{
.response_callback = response,
});
gai_tests ();
gni_tests ();
resolv_test_end (aux);
xdlclose (handle);
return 0;
}
#include <support/test-driver.c>
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