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	This provides an implementation of the IDNA2008 standard and fixes CVE-2016-6261, CVE-2016-6263, CVE-2017-14062.
		
			
				
	
	
		
			152 lines
		
	
	
		
			5.4 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			152 lines
		
	
	
		
			5.4 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /* Test getaddrinfo and getnameinfo without usable libidn2.
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|    Copyright (C) 2018 Free Software Foundation, Inc.
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|    This file is part of the GNU C Library.
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| 
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|    The GNU C Library is free software; you can redistribute it and/or
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|    modify it under the terms of the GNU Lesser General Public
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|    License as published by the Free Software Foundation; either
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|    version 2.1 of the License, or (at your option) any later version.
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| 
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|    The GNU C Library is distributed in the hope that it will be useful,
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|    but WITHOUT ANY WARRANTY; without even the implied warranty of
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|    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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|    Lesser General Public License for more details.
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| 
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|    You should have received a copy of the GNU Lesser General Public
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|    License along with the GNU C Library; if not, see
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|    <http://www.gnu.org/licenses/>.  */
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| 
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| #define TEST_USE_UTF8 1
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| #include "tst-resolv-ai_idn-common.c"
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| 
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| #include <locale.h>
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| #include <support/xdlfcn.h>
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| 
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| /* Tests for getaddrinfo.  */
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| static void
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| gai_tests (void)
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| {
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|   /* No CNAME.  */
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|   check_ai ("non-idn.example", 0,
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|             "address: STREAM/TCP 192.0.2.110 80\n");
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|   check_ai ("non-idn.example", AI_IDN,
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|             "flags: AI_IDN\n"
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|             "address: STREAM/TCP 192.0.2.110 80\n");
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|   check_ai ("non-idn.example", AI_IDN | AI_CANONNAME | AI_CANONIDN,
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|             "flags: AI_CANONNAME AI_IDN AI_CANONIDN\n"
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|             "canonname: non-idn.example\n"
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|             "address: STREAM/TCP 192.0.2.110 80\n");
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| 
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|   /* This gets passed over the network to the server, so it will
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|      result in an NXDOMAIN error.  */
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|   check_ai (NAEMCHEN ".example", 0,
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|             "error: Name or service not known\n");
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|   /* Due to missing libidn2, this fails inside getaddrinfo.  */
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|   check_ai (NAEMCHEN ".example", AI_IDN,
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|             "error: Parameter string not correctly encoded\n");
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|   check_ai (NAEMCHEN ".example", AI_IDN | AI_CANONNAME | AI_CANONIDN,
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|             "error: Parameter string not correctly encoded\n");
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| 
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|   /* Non-IDN CNAME.  */
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|   check_ai ("with.cname.example", 0,
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|             "address: STREAM/TCP 192.0.2.119 80\n");
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|   check_ai ("with.cname.example", AI_IDN,
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|             "flags: AI_IDN\n"
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|             "address: STREAM/TCP 192.0.2.119 80\n");
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|   check_ai ("with.cname.example", AI_IDN | AI_CANONNAME | AI_CANONIDN,
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|             "flags: AI_CANONNAME AI_IDN AI_CANONIDN\n"
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|             "canonname: non-idn-cname.example\n"
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|             "address: STREAM/TCP 192.0.2.119 80\n");
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| 
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|   /* IDN CNAME.  */
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|   check_ai ("With.idn-cname.example", 0,
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|             "address: STREAM/TCP 192.0.2.87 80\n");
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|   check_ai ("With.idn-cname.example", AI_IDN,
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|             "flags: AI_IDN\n"
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|             "address: STREAM/TCP 192.0.2.87 80\n");
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|   check_ai ("With.idn-cname.example", AI_IDN | AI_CANONNAME,
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|             "flags: AI_CANONNAME AI_IDN\n"
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|             "canonname: " ANDERES_NAEMCHEN_IDNA ".example\n"
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|             "address: STREAM/TCP 192.0.2.87 80\n");
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|   check_ai ("With.idn-cname.example",
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|             AI_IDN | AI_CANONNAME | AI_CANONIDN,
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|             "flags: AI_CANONNAME AI_IDN AI_CANONIDN\n"
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|             "canonname: " ANDERES_NAEMCHEN_IDNA ".example\n"
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|             "address: STREAM/TCP 192.0.2.87 80\n");
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| 
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|   /* Non-IDN to IDN CNAME chain.  */
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|   check_ai ("both.cname.idn-cname.example", 0,
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|             "address: STREAM/TCP 192.0.2.98 80\n");
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|   check_ai ("both.cname.idn-cname.example", AI_IDN,
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|             "flags: AI_IDN\n"
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|             "address: STREAM/TCP 192.0.2.98 80\n");
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|   check_ai ("both.cname.idn-cname.example", AI_IDN | AI_CANONNAME,
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|             "flags: AI_CANONNAME AI_IDN\n"
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|             "canonname: " ANDERES_NAEMCHEN_IDNA ".example\n"
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|             "address: STREAM/TCP 192.0.2.98 80\n");
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|   check_ai ("both.cname.idn-cname.example",
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|             AI_IDN | AI_CANONNAME | AI_CANONIDN,
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|             "flags: AI_CANONNAME AI_IDN AI_CANONIDN\n"
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|             "canonname: " ANDERES_NAEMCHEN_IDNA ".example\n"
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|             "address: STREAM/TCP 192.0.2.98 80\n");
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| }
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| 
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| /* Tests for getnameinfo.  */
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| static void
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| gni_tests (void)
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| {
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|   /* All non-IDN an IDN results are the same due to lack of libidn2
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|      support.  */
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|   for (int do_ni_idn = 0; do_ni_idn < 2; ++do_ni_idn)
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|     {
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|       int flags = 0;
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|       if (do_ni_idn)
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|         flags |= NI_IDN;
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| 
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|       gni_test (gni_non_idn_name, flags, "non-idn.example");
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|       gni_test (gni_non_idn_name, flags | NI_NUMERICHOST, "192.0.2.0");
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|       gni_test (gni_non_idn_cname_to_non_idn_name, flags,
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|                 "non-idn-name.example");
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|       gni_test (gni_non_idn_cname_to_idn_name, flags,
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|                 NAEMCHEN_IDNA ".example");
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|       gni_test (gni_idn_name, flags, NAEMCHEN_IDNA ".example");
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|       gni_test (gni_idn_cname_to_non_idn_name, flags, "non-idn-name.example");
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|       gni_test (gni_idn_cname_to_idn_name, flags,
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|                 ANDERES_NAEMCHEN_IDNA ".example");
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| 
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|       /* Test encoding errors.  */
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|       gni_test (gni_invalid_idn_1, flags, "xn---.example");
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|       gni_test (gni_invalid_idn_2, flags, "xn--x.example");
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| }
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| }
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| 
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| static int
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| do_test (void)
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| {
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|   void *handle = xdlopen ("tst-no-libidn2.so", RTLD_LAZY);
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|   {
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|     /* Verify that this replaced libidn2.  */
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|     void *handle2 = xdlopen (LIBIDN2_SONAME, RTLD_LAZY | RTLD_NOLOAD);
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|     TEST_VERIFY (handle2 == handle);
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|     xdlclose (handle2);
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|   }
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| 
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|   if (setlocale (LC_CTYPE, "en_US.UTF-8") == NULL)
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|     FAIL_EXIT1 ("setlocale: %m");
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| 
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|   struct resolv_test *aux = resolv_test_start
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|     ((struct resolv_redirect_config)
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|      {
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|        .response_callback = response,
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|      });
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| 
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|   gai_tests ();
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|   gni_tests ();
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| 
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|   resolv_test_end (aux);
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|   xdlclose (handle);
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|   return 0;
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| }
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| 
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| #include <support/test-driver.c>
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