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/resolv/tst-resolv-ai_idn-common.c

https://gitlab.com/gbenson/glibc
C | 569 lines | 462 code | 48 blank | 59 comment | 39 complexity | 2030e720125fdc5ceacb51bebb50d6ca MD5 | raw file
    

  1. /* Common code for AI_IDN/NI_IDN tests.
    2. 

  2.    Copyright (C) 2018 Free Software Foundation, Inc.
    3. 

  3.    This file is part of the GNU C Library.
    4. 

    5. 

  5.    The GNU C Library is free software; you can redistribute it and/or
    6. 

  6.    modify it under the terms of the GNU Lesser General Public
    7. 

  7.    License as published by the Free Software Foundation; either
    8. 

  8.    version 2.1 of the License, or (at your option) any later version.
    9. 

    10. 

  10.    The GNU C Library is distributed in the hope that it will be useful,
    11. 

  11.    but WITHOUT ANY WARRANTY; without even the implied warranty of
    12. 

  12.    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    13. 

  13.    Lesser General Public License for more details.
    14. 

    15. 

  15.    You should have received a copy of the GNU Lesser General Public
    16. 

  16.    License along with the GNU C Library; if not, see
    17. 

  17.    <http://www.gnu.org/licenses/>.  */
    18. 

  18. 

  19. /* Before including this file, TEST_USE_UTF8 must be defined to 1 or
    20. 

  20.    0, depending on whether a UTF-8 locale is used or a Latin-1
    21. 

  21.    locale.  */
    22. 

  22. 

  23. #include <stdio.h>
    24. 

  24. #include <stdlib.h>
    25. 

  25. #include <string.h>
    26. 

  26. #include <support/check.h>
    27. 

  27. #include <support/check_nss.h>
    28. 

  28. #include <support/resolv_test.h>
    29. 

  29. #include <support/support.h>
    30. 

  30. 

  31. /* Name of the shared object for libidn2.  */
    32. 

  32. #define LIBIDN2_SONAME "libidn2.so.0"
    33. 

  33. 

  34. #if TEST_USE_UTF8
    35. 

  35. /* UTF-8 encoding of "nämchen" (German for “namelet”).  */
    36. 

  36. # define NAEMCHEN "n\xC3\xA4mchen"
    37. 

  37. 

  38. /* UTF-8 encoding of "שם" (Hebrew for “name”).  */
    39. 

  39. # define SHEM "\xD7\xA9\xD7\x9D"
    40. 

  40. 

  41. /* UTF-8 encoding of "buße" (German for “penance”).  This used to be
    42. 

  42.    encoded as "busse" (“busses”) in IDNA2003.  */
    43. 

  43. # define BUSSE "bu\xC3\x9F""e"
    44. 

  44. 

  45. #else
    46. 

  46. /* Latin-1 encodings, as far as they are available.  */
    47. 

  47. 

  48. # define NAEMCHEN "n\xE4mchen"
    49. 

  49. # define BUSSE "bu\xDF""e"
    50. 

  50. 

  51. #endif
    52. 

  52. 

  53. /* IDNA encoding of NAEMCHEN.  */
    54. 

  54. #define NAEMCHEN_IDNA "xn--nmchen-bua"
    55. 

  55. 

  56. /* IDNA encoding of NAEMCHEN "_zwo".  */
    57. 

  57. #define NAEMCHEN_ZWO_IDNA "xn--nmchen_zwo-q5a"
    58. 

  58. 

  59. /* IDNA encoding of SHEM.  */
    60. 

  60. #define SHEM_IDNA "xn--iebx"
    61. 

  61. 

  62. /* IDNA encoding of BUSSE.  */
    63. 

  63. #define BUSSE_IDNA "xn--bue-6ka"
    64. 

  64. 

  65. /* IDNA encoding of "שם1".  */
    66. 

  66. #define SHEM1_IDNA "xn--1-qic9a"
    67. 

  67. 

  68. /* Another IDNA name.  */
    69. 

  69. #define ANDERES_NAEMCHEN "anderes-" NAEMCHEN
    70. 

  70. #define ANDERES_NAEMCHEN_IDNA "xn--anderes-nmchen-eib"
    71. 

  71. 

  72. /* Controls the kind of test data in a PTR lookup response.  */
    73. 

  73. enum gni_test
    74. 

  74.   {
    75. 

  75.     gni_non_idn_name,
    76. 

  76.     gni_non_idn_cname_to_non_idn_name,
    77. 

  77.     gni_non_idn_cname_to_idn_name,
    78. 

  78.     gni_idn_name,
    79. 

  79.     gni_idn_shem,
    80. 

  80.     gni_idn_shem1,
    81. 

  81.     gni_idn_cname_to_non_idn_name,
    82. 

  82.     gni_idn_cname_to_idn_name,
    83. 

  83.     gni_invalid_idn_1,
    84. 

  84.     gni_invalid_idn_2,
    85. 

  85.   };
    86. 

  86. 

  87. /* Called from response below.  The LSB (first byte) controls what
    88. 

  88.    goes into the response, see enum gni_test.  */
    89. 

  89. static void
    90. 

  90. response_ptr (const struct resolv_response_context *ctx,
    91. 

  91.               struct resolv_response_builder *b, const char *qname)
    92. 

  92. {
    93. 

  93.   int comp[4] = { 0 };
    94. 

  94.   TEST_COMPARE (sscanf (qname, "%d.%d.%d.%d.in-addr.arpa",
    95. 

  95.                         &comp[0], &comp[1], &comp[2], &comp[3]), 4);
    96. 

  96.   const char *next_name;
    97. 

  97.   switch ((enum gni_test) comp[0])
    98. 

  98.     {
    99. 

  99.     /* First name in response is non-IDN name.  */
    100. 

  100.     case gni_non_idn_name:
    101. 

  101.       resolv_response_open_record (b, qname, C_IN, T_PTR, 0);
    102. 

  102.       resolv_response_add_name (b, "non-idn.example");
    103. 

  103.       resolv_response_close_record (b);
    104. 

  104.       return;
    105. 

  105.     case gni_non_idn_cname_to_non_idn_name:
    106. 

  106.       resolv_response_open_record (b, qname, C_IN, T_CNAME, 0);
    107. 

  107.       next_name = "non-idn-cname.example";
    108. 

  108.       resolv_response_add_name (b, next_name);
    109. 

  109.       resolv_response_close_record (b);
    110. 

  110.       resolv_response_open_record (b, next_name, C_IN, T_PTR, 0);
    111. 

  111.       resolv_response_add_name (b, "non-idn-name.example");
    112. 

  112.       resolv_response_close_record (b);
    113. 

  113.       return;
    114. 

  114.     case gni_non_idn_cname_to_idn_name:
    115. 

  115.       resolv_response_open_record (b, qname, C_IN, T_CNAME, 0);
    116. 

  116.       next_name = "non-idn-cname.example";
    117. 

  117.       resolv_response_add_name (b, next_name);
    118. 

  118.       resolv_response_close_record (b);
    119. 

  119.       resolv_response_open_record (b, next_name, C_IN, T_PTR, 0);
    120. 

  120.       resolv_response_add_name (b, NAEMCHEN_IDNA ".example");
    121. 

  121.       resolv_response_close_record (b);
    122. 

  122.       return;
    123. 

  123. 

  124.     /* First name in response is IDN name.  */
    125. 

  125.     case gni_idn_name:
    126. 

  126.       resolv_response_open_record (b, qname, C_IN, T_PTR, 0);
    127. 

  127.       resolv_response_add_name (b, "xn--nmchen-bua.example");
    128. 

  128.       resolv_response_close_record (b);
    129. 

  129.       return;
    130. 

  130.     case gni_idn_shem:
    131. 

  131.       resolv_response_open_record (b, qname, C_IN, T_PTR, 0);
    132. 

  132.       resolv_response_add_name (b, SHEM_IDNA ".example");
    133. 

  133.       resolv_response_close_record (b);
    134. 

  134.       return;
    135. 

  135.     case gni_idn_shem1:
    136. 

  136.       resolv_response_open_record (b, qname, C_IN, T_PTR, 0);
    137. 

  137.       resolv_response_add_name (b, SHEM1_IDNA ".example");
    138. 

  138.       resolv_response_close_record (b);
    139. 

  139.       return;
    140. 

  140.     case gni_idn_cname_to_non_idn_name:
    141. 

  141.       resolv_response_open_record (b, qname, C_IN, T_CNAME, 0);
    142. 

  142.       next_name = NAEMCHEN_IDNA ".example";
    143. 

  143.       resolv_response_add_name (b, next_name);
    144. 

  144.       resolv_response_close_record (b);
    145. 

  145.       resolv_response_open_record (b, next_name, C_IN, T_PTR, 0);
    146. 

  146.       resolv_response_add_name (b, "non-idn-name.example");
    147. 

  147.       resolv_response_close_record (b);
    148. 

  148.       return;
    149. 

  149.     case gni_idn_cname_to_idn_name:
    150. 

  150.       resolv_response_open_record (b, qname, C_IN, T_CNAME, 0);
    151. 

  151.       next_name = NAEMCHEN_IDNA ".example";
    152. 

  152.       resolv_response_add_name (b, next_name);
    153. 

  153.       resolv_response_close_record (b);
    154. 

  154.       resolv_response_open_record (b, next_name, C_IN, T_PTR, 0);
    155. 

  155.       resolv_response_add_name (b, ANDERES_NAEMCHEN_IDNA ".example");
    156. 

  156.       resolv_response_close_record (b);
    157. 

  157.       return;
    158. 

  158. 

  159.     /* Invalid IDN encodings.  */
    160. 

  160.     case gni_invalid_idn_1:
    161. 

  161.       resolv_response_open_record (b, qname, C_IN, T_PTR, 0);
    162. 

  162.       resolv_response_add_name (b, "xn---.example");
    163. 

  163.       resolv_response_close_record (b);
    164. 

  164.       return;
    165. 

  165.     case gni_invalid_idn_2:
    166. 

  166.       resolv_response_open_record (b, qname, C_IN, T_PTR, 0);
    167. 

  167.       resolv_response_add_name (b, "xn--x.example");
    168. 

  168.       resolv_response_close_record (b);
    169. 

  169.       return;
    170. 

  170.     }
    171. 

  171.   FAIL_EXIT1 ("invalid PTR query: %s", qname);
    172. 

  172. }
    173. 

  173. 

  174. /* For PTR responses, see above.  A/AAAA queries can request
    175. 

  175.    additional CNAMEs in the response by include ".cname." and
    176. 

  176.    ".idn-cname." in the query.  The LSB in the address contains the
    177. 

  177.    first byte of the QNAME.  */
    178. 

  178. static void
    179. 

  179. response (const struct resolv_response_context *ctx,
    180. 

  180.           struct resolv_response_builder *b,
    181. 

  181.           const char *qname, uint16_t qclass, uint16_t qtype)
    182. 

  182. {
    183. 

  183.   TEST_VERIFY_EXIT (qclass == C_IN);
    184. 

  184. 

  185.   for (const char *p = qname; *p != '\0'; ++p)
    186. 

  186.     if (!(('0' <= *p && *p <= '9')
    187. 

  187.           || ('a' <= *p && *p <= 'z')
    188. 

  188.           || ('A' <= *p && *p <= 'Z')
    189. 

  189.           || *p == '.' || *p == '-' || *p == '_'))
    190. 

  190.       {
    191. 

  191.         /* Non-ASCII query.  Reply with NXDOMAIN.  */
    192. 

  192.         struct resolv_response_flags flags = { .rcode = 3 };
    193. 

  193.         resolv_response_init (b, flags);
    194. 

  194.         resolv_response_add_question (b, qname, qclass, qtype);
    195. 

  195.         return;
    196. 

  196.       }
    197. 

  197. 

  198.   struct resolv_response_flags flags = { 0 };
    199. 

  199.   resolv_response_init (b, flags);
    200. 

  200.   resolv_response_add_question (b, qname, qclass, qtype);
    201. 

  201.   resolv_response_section (b, ns_s_an);
    202. 

  202. 

  203.   if (qtype == T_PTR)
    204. 

  204.     {
    205. 

  205.       response_ptr (ctx, b, qname);
    206. 

  206.       return;
    207. 

  207.     }
    208. 

  208. 

  209.   bool with_cname = strstr (qname, ".cname.") != NULL;
    210. 

  210.   bool with_idn_cname = strstr (qname, ".idn-cname.") != NULL;
    211. 

  211. 

  212.   const char *next_name = qname;
    213. 

  213.   if (with_cname)
    214. 

  214.     {
    215. 

  215.       next_name = "non-idn-cname.example";
    216. 

  216.       resolv_response_open_record (b, qname, C_IN, T_CNAME, 0);
    217. 

  217.       resolv_response_add_name (b, next_name);
    218. 

  218.       resolv_response_close_record (b);
    219. 

  219.     }
    220. 

  220.   if (with_idn_cname)
    221. 

  221.     {
    222. 

  222.       next_name = ANDERES_NAEMCHEN_IDNA ".example";
    223. 

  223.       resolv_response_open_record (b, qname, C_IN, T_CNAME, 0);
    224. 

  224.       resolv_response_add_name (b, next_name);
    225. 

  225.       resolv_response_close_record (b);
    226. 

  226.     }
    227. 

  227. 

  228.   resolv_response_open_record (b, next_name, C_IN, qtype, 0);
    229. 

  229.   switch (qtype)
    230. 

  230.     {
    231. 

  231.     case T_A:
    232. 

  232.       {
    233. 

  233.         char addr[4] = { 192, 0, 2, qname[0] };
    234. 

  234.         resolv_response_add_data (b, &addr, sizeof (addr));
    235. 

  235.       }
    236. 

  236.       break;
    237. 

  237.     case T_AAAA:
    238. 

  238.       {
    239. 

  239.         char addr[16]
    240. 

  240.           = { 0x20, 0x01, 0xd, 0xb8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    241. 

  241.               qname[0] };
    242. 

  242.         resolv_response_add_data (b, &addr, sizeof (addr));
    243. 

  243.       }
    244. 

  244.     default:
    245. 

  245.       FAIL_EXIT1 ("invalid qtype: %d", qtype);
    246. 

  246.     }
    247. 

  247.   resolv_response_close_record (b);
    248. 

  248. }
    249. 

  249. 

  250. /* Check the result of a getaddrinfo call.  */
    251. 

  251. static void
    252. 

  252. check_ai (const char *name, int ai_flags, const char *expected)
    253. 

  253. {
    254. 

  254.   struct addrinfo hints =
    255. 

  255.     {
    256. 

  256.       .ai_flags = ai_flags,
    257. 

  257.       .ai_family = AF_INET,
    258. 

  258.       .ai_socktype = SOCK_STREAM,
    259. 

  259.     };
    260. 

  260.   struct addrinfo *ai;
    261. 

  261.   char *query = xasprintf ("%s:80 AF_INET/0x%x", name, ai_flags);
    262. 

  262.   int ret = getaddrinfo (name, "80", &hints, &ai);
    263. 

  263.   check_addrinfo (query, ai, ret, expected);
    264. 

  264.   if (ret == 0)
    265. 

  265.     freeaddrinfo (ai);
    266. 

  266.   free (query);
    267. 

  267. }
    268. 

  268. 

  269. /* Run one getnameinfo test.  FLAGS is automatically augmented with
    270. 

  270.    NI_NUMERICSERV.  */
    271. 

  271. static void
    272. 

  272. gni_test (enum gni_test code, unsigned int flags, const char *expected)
    273. 

  273. {
    274. 

  274.   struct sockaddr_in sin =
    275. 

  275.     {
    276. 

  276.       .sin_family = AF_INET,
    277. 

  277.       .sin_port = htons (80),
    278. 

  278.       .sin_addr = { htonl (0xc0000200 | code) }, /* 192.0.2.0/24 network.  */
    279. 

  279.     };
    280. 

  280.   char host[1024];
    281. 

  281.   char service[1024];
    282. 

  282.   int ret = getnameinfo ((const struct sockaddr *) &sin, sizeof (sin),
    283. 

  283.                          host, sizeof (host), service, sizeof (service),
    284. 

  284.                          flags| NI_NUMERICSERV);
    285. 

  285.   if (ret != 0)
    286. 

  286.     {
    287. 

  287.       if (expected == NULL)
    288. 

  288.         TEST_COMPARE (ret, EAI_IDN_ENCODE);
    289. 

  289.       else
    290. 

  290.         {
    291. 

  291.           support_record_failure ();
    292. 

  292.           printf ("error: getnameinfo failed (code %d, flags 0x%x): %s (%d)\n",
    293. 

  293.                   (int) code, flags, gai_strerror (ret), ret);
    294. 

  294.         }
    295. 

  295.     }
    296. 

  296.   else if (ret == 0 && expected == NULL)
    297. 

  297.     {
    298. 

  298.       support_record_failure ();
    299. 

  299.       printf ("error: getnameinfo unexpected success (code %d, flags 0x%x)\n",
    300. 

  300.               (int) code, flags);
    301. 

  301.     }
    302. 

  302.   else if (strcmp (host, expected) != 0 || strcmp (service, "80") != 0)
    303. 

  303.     {
    304. 

  304.       support_record_failure ();
    305. 

  305.       printf ("error: getnameinfo test failure (code %d, flags 0x%x)\n"
    306. 

  306.               "  expected host:    \"%s\"\n"
    307. 

  307.               "  expected service: \"80\"\n"
    308. 

  308.               "  actual host:      \"%s\"\n"
    309. 

  309.               "  actual service:   \"%s\"\n",
    310. 

  310.               (int) code, flags, expected, host, service);
    311. 

  311.     }
    312. 

  312. }
    313. 

  313. 

  314. /* Tests for getaddrinfo which assume a working libidn2 library.  */
    315. 

  315. __attribute__ ((unused))
    316. 

  316. static void
    317. 

  317. gai_tests_with_libidn2 (void)
    318. 

  318. {
    319. 

  319.   /* No CNAME.  */
    320. 

  320.   check_ai ("non-idn.example", 0,
    321. 

  321.             "address: STREAM/TCP 192.0.2.110 80\n");
    322. 

  322.   check_ai ("non-idn.example", AI_IDN,
    323. 

  323.             "flags: AI_IDN\n"
    324. 

  324.             "address: STREAM/TCP 192.0.2.110 80\n");
    325. 

  325.   check_ai ("non-idn.example", AI_IDN | AI_CANONNAME | AI_CANONIDN,
    326. 

  326.             "flags: AI_CANONNAME AI_IDN AI_CANONIDN\n"
    327. 

  327.             "canonname: non-idn.example\n"
    328. 

  328.             "address: STREAM/TCP 192.0.2.110 80\n");
    329. 

  329. 

  330.   check_ai (NAEMCHEN ".example", 0,
    331. 

  331.             "error: Name or service not known\n");
    332. 

  332.   check_ai (NAEMCHEN ".example", AI_IDN,
    333. 

  333.             "flags: AI_IDN\n"
    334. 

  334.             "address: STREAM/TCP 192.0.2.120 80\n");
    335. 

  335.   check_ai (NAEMCHEN ".example", AI_IDN | AI_CANONNAME | AI_CANONIDN,
    336. 

  336.             "flags: AI_CANONNAME AI_IDN AI_CANONIDN\n"
    337. 

  337.             "canonname: " NAEMCHEN ".example\n"
    338. 

  338.             "address: STREAM/TCP 192.0.2.120 80\n");
    339. 

  339. 

  340. #if TEST_USE_UTF8
    341. 

  341.   check_ai (SHEM ".example", 0,
    342. 

  342.             "error: Name or service not known\n");
    343. 

  343.   check_ai (SHEM ".example", AI_IDN,
    344. 

  344.             "flags: AI_IDN\n"
    345. 

  345.             "address: STREAM/TCP 192.0.2.120 80\n");
    346. 

  346.   check_ai (SHEM ".example", AI_IDN | AI_CANONNAME | AI_CANONIDN,
    347. 

  347.             "flags: AI_CANONNAME AI_IDN AI_CANONIDN\n"
    348. 

  348.             "canonname: " SHEM ".example\n"
    349. 

  349.             "address: STREAM/TCP 192.0.2.120 80\n");
    350. 

  350.   check_ai (SHEM ".example", AI_IDN | AI_CANONNAME,
    351. 

  351.             "flags: AI_CANONNAME AI_IDN\n"
    352. 

  352.             "canonname: " SHEM_IDNA ".example\n"
    353. 

  353.             "address: STREAM/TCP 192.0.2.120 80\n");
    354. 

  354.   check_ai (SHEM "1.example", AI_IDN,
    355. 

  355.             "flags: AI_IDN\n"
    356. 

  356.             "address: STREAM/TCP 192.0.2.120 80\n");
    357. 

  357.   check_ai (SHEM "1.example", AI_IDN | AI_CANONNAME | AI_CANONIDN,
    358. 

  358.             "flags: AI_CANONNAME AI_IDN AI_CANONIDN\n"
    359. 

  359.             "canonname: " SHEM "1.example\n"
    360. 

  360.             "address: STREAM/TCP 192.0.2.120 80\n");
    361. 

  361.   check_ai (SHEM "1.example", AI_IDN | AI_CANONNAME,
    362. 

  362.             "flags: AI_CANONNAME AI_IDN\n"
    363. 

  363.             "canonname: " SHEM1_IDNA ".example\n"
    364. 

  364.             "address: STREAM/TCP 192.0.2.120 80\n");
    365. 

  365. #endif
    366. 

  366. 

  367.   /* Check that non-transitional mode is active.  German sharp S
    368. 

  368.      should not turn into SS.  */
    369. 

  369.   check_ai (BUSSE ".example", 0,
    370. 

  370.             "error: Name or service not known\n");
    371. 

  371.   check_ai (BUSSE ".example", AI_IDN,
    372. 

  372.             "flags: AI_IDN\n"
    373. 

  373.             "address: STREAM/TCP 192.0.2.120 80\n");
    374. 

  374.   check_ai (BUSSE ".example", AI_IDN | AI_CANONNAME,
    375. 

  375.             "flags: AI_CANONNAME AI_IDN\n"
    376. 

  376.             "canonname: " BUSSE_IDNA ".example\n"
    377. 

  377.             "address: STREAM/TCP 192.0.2.120 80\n");
    378. 

  378.   check_ai (BUSSE ".example", AI_IDN | AI_CANONNAME | AI_CANONIDN,
    379. 

  379.             "flags: AI_CANONNAME AI_IDN AI_CANONIDN\n"
    380. 

  380.             "canonname: " BUSSE ".example\n"
    381. 

  381.             "address: STREAM/TCP 192.0.2.120 80\n");
    382. 

  382. 

  383.   /* Check that Unicode TR 46 mode is active.  Underscores should be
    384. 

  384.      permitted in IDNA components.  */
    385. 

  385.   check_ai (NAEMCHEN "_zwo.example", 0,
    386. 

  386.             "error: Name or service not known\n");
    387. 

  387.   check_ai (NAEMCHEN "_zwo.example", AI_IDN,
    388. 

  388.             "flags: AI_IDN\n"
    389. 

  389.             "address: STREAM/TCP 192.0.2.120 80\n");
    390. 

  390.   check_ai (NAEMCHEN "_zwo.example", AI_IDN | AI_CANONNAME,
    391. 

  391.             "flags: AI_CANONNAME AI_IDN\n"
    392. 

  392.             "canonname: " NAEMCHEN_ZWO_IDNA ".example\n"
    393. 

  393.             "address: STREAM/TCP 192.0.2.120 80\n");
    394. 

  394.   check_ai (NAEMCHEN "_zwo.example", AI_IDN | AI_CANONNAME | AI_CANONIDN,
    395. 

  395.             "flags: AI_CANONNAME AI_IDN AI_CANONIDN\n"
    396. 

  396.             "canonname: " NAEMCHEN "_zwo.example\n"
    397. 

  397.             "address: STREAM/TCP 192.0.2.120 80\n");
    398. 

  398. 

  399.   /* No CNAME, but already IDN-encoded.  */
    400. 

  400.   check_ai (NAEMCHEN_IDNA ".example", 0,
    401. 

  401.             "address: STREAM/TCP 192.0.2.120 80\n");
    402. 

  402.   check_ai (NAEMCHEN_IDNA ".example", AI_IDN,
    403. 

  403.             "flags: AI_IDN\n"
    404. 

  404.             "address: STREAM/TCP 192.0.2.120 80\n");
    405. 

  405.   check_ai (NAEMCHEN_IDNA ".example", AI_IDN | AI_CANONNAME,
    406. 

  406.             "flags: AI_CANONNAME AI_IDN\n"
    407. 

  407.             "canonname: " NAEMCHEN_IDNA ".example\n"
    408. 

  408.             "address: STREAM/TCP 192.0.2.120 80\n");
    409. 

  409.   check_ai (NAEMCHEN_IDNA ".example", AI_IDN | AI_CANONNAME | AI_CANONIDN,
    410. 

  410.             "flags: AI_CANONNAME AI_IDN AI_CANONIDN\n"
    411. 

  411.             "canonname: " NAEMCHEN ".example\n"
    412. 

  412.             "address: STREAM/TCP 192.0.2.120 80\n");
    413. 

  413.   check_ai (SHEM_IDNA ".example", 0,
    414. 

  414.             "address: STREAM/TCP 192.0.2.120 80\n");
    415. 

  415.   check_ai (SHEM_IDNA ".example", AI_IDN,
    416. 

  416.             "flags: AI_IDN\n"
    417. 

  417.             "address: STREAM/TCP 192.0.2.120 80\n");
    418. 

  418.   check_ai (SHEM_IDNA ".example", AI_IDN | AI_CANONNAME,
    419. 

  419.             "flags: AI_CANONNAME AI_IDN\n"
    420. 

  420.             "canonname: " SHEM_IDNA ".example\n"
    421. 

  421.             "address: STREAM/TCP 192.0.2.120 80\n");
    422. 

  422. #if TEST_USE_UTF8
    423. 

  423.   check_ai (SHEM_IDNA ".example", AI_IDN | AI_CANONNAME | AI_CANONIDN,
    424. 

  424.             "flags: AI_CANONNAME AI_IDN AI_CANONIDN\n"
    425. 

  425.             "canonname: " SHEM ".example\n"
    426. 

  426.             "address: STREAM/TCP 192.0.2.120 80\n");
    427. 

  427. #else
    428. 

  428.   check_ai (SHEM_IDNA ".example", AI_IDN | AI_CANONNAME | AI_CANONIDN,
    429. 

  429.             "flags: AI_CANONNAME AI_IDN AI_CANONIDN\n"
    430. 

  430.             "canonname: " SHEM_IDNA ".example\n"
    431. 

  431.             "address: STREAM/TCP 192.0.2.120 80\n");
    432. 

  432. #endif
    433. 

  433. 

  434.   /* Invalid IDNA canonical name is returned as-is.  */
    435. 

  435.   check_ai ("xn---.example", AI_CANONNAME | AI_CANONIDN,
    436. 

  436.             "flags: AI_CANONNAME AI_CANONIDN\n"
    437. 

  437.             "canonname: xn---.example\n"
    438. 

  438.             "address: STREAM/TCP 192.0.2.120 80\n");
    439. 

  439. 

  440.   /* Non-IDN CNAME.  */
    441. 

  441.   check_ai ("with.cname.example", 0,
    442. 

  442.             "address: STREAM/TCP 192.0.2.119 80\n");
    443. 

  443.   check_ai ("with.cname.example", AI_IDN,
    444. 

  444.             "flags: AI_IDN\n"
    445. 

  445.             "address: STREAM/TCP 192.0.2.119 80\n");
    446. 

  446.   check_ai ("with.cname.example", AI_IDN | AI_CANONNAME | AI_CANONIDN,
    447. 

  447.             "flags: AI_CANONNAME AI_IDN AI_CANONIDN\n"
    448. 

  448.             "canonname: non-idn-cname.example\n"
    449. 

  449.             "address: STREAM/TCP 192.0.2.119 80\n");
    450. 

  450. 

  451.   check_ai ("with.cname." NAEMCHEN ".example", 0,
    452. 

  452.             "error: Name or service not known\n");
    453. 

  453.   check_ai ("with.cname." NAEMCHEN ".example", AI_IDN,
    454. 

  454.             "flags: AI_IDN\n"
    455. 

  455.             "address: STREAM/TCP 192.0.2.119 80\n");
    456. 

  456.   check_ai ("with.cname." NAEMCHEN ".example", AI_IDN | AI_CANONNAME,
    457. 

  457.             "flags: AI_CANONNAME AI_IDN\n"
    458. 

  458.             "canonname: non-idn-cname.example\n"
    459. 

  459.             "address: STREAM/TCP 192.0.2.119 80\n");
    460. 

  460.   check_ai ("with.cname." NAEMCHEN ".example",
    461. 

  461.             AI_IDN | AI_CANONNAME | AI_CANONIDN,
    462. 

  462.             "flags: AI_CANONNAME AI_IDN AI_CANONIDN\n"
    463. 

  463.             "canonname: non-idn-cname.example\n"
    464. 

  464.             "address: STREAM/TCP 192.0.2.119 80\n");
    465. 

  465. 

  466.   /* IDN CNAME.  */
    467. 

  467.   check_ai ("With.idn-cname.example", 0,
    468. 

  468.             "address: STREAM/TCP 192.0.2.87 80\n");
    469. 

  469.   check_ai ("With.idn-cname.example", AI_IDN,
    470. 

  470.             "flags: AI_IDN\n"
    471. 

  471.             "address: STREAM/TCP 192.0.2.87 80\n");
    472. 

  472.   check_ai ("With.idn-cname.example", AI_IDN | AI_CANONNAME,
    473. 

  473.             "flags: AI_CANONNAME AI_IDN\n"
    474. 

  474.             "canonname: " ANDERES_NAEMCHEN_IDNA ".example\n"
    475. 

  475.             "address: STREAM/TCP 192.0.2.87 80\n");
    476. 

  476.   check_ai ("With.idn-cname.example",
    477. 

  477.             AI_IDN | AI_CANONNAME | AI_CANONIDN,
    478. 

  478.             "flags: AI_CANONNAME AI_IDN AI_CANONIDN\n"
    479. 

  479.             "canonname: " ANDERES_NAEMCHEN ".example\n"
    480. 

  480.             "address: STREAM/TCP 192.0.2.87 80\n");
    481. 

  481. 

  482.   check_ai ("With.idn-cname." NAEMCHEN ".example", 0,
    483. 

  483.             "error: Name or service not known\n");
    484. 

  484.   check_ai ("With.idn-cname." NAEMCHEN ".example", AI_IDN,
    485. 

  485.             "flags: AI_IDN\n"
    486. 

  486.             "address: STREAM/TCP 192.0.2.119 80\n");
    487. 

  487.   check_ai ("With.idn-cname." NAEMCHEN ".example", AI_IDN | AI_CANONNAME,
    488. 

  488.             "flags: AI_CANONNAME AI_IDN\n"
    489. 

  489.             "canonname: " ANDERES_NAEMCHEN_IDNA ".example\n"
    490. 

  490.             "address: STREAM/TCP 192.0.2.119 80\n");
    491. 

  491.   check_ai ("With.idn-cname." NAEMCHEN ".example",
    492. 

  492.             AI_IDN | AI_CANONNAME | AI_CANONIDN,
    493. 

  493.             "flags: AI_CANONNAME AI_IDN AI_CANONIDN\n"
    494. 

  494.             "canonname: " ANDERES_NAEMCHEN ".example\n"
    495. 

  495.             "address: STREAM/TCP 192.0.2.119 80\n");
    496. 

  496. 

  497.   /* Non-IDN to IDN CNAME chain.  */
    498. 

  498.   check_ai ("both.cname.idn-cname.example", 0,
    499. 

  499.             "address: STREAM/TCP 192.0.2.98 80\n");
    500. 

  500.   check_ai ("both.cname.idn-cname.example", AI_IDN,
    501. 

  501.             "flags: AI_IDN\n"
    502. 

  502.             "address: STREAM/TCP 192.0.2.98 80\n");
    503. 

  503.   check_ai ("both.cname.idn-cname.example", AI_IDN | AI_CANONNAME,
    504. 

  504.             "flags: AI_CANONNAME AI_IDN\n"
    505. 

  505.             "canonname: " ANDERES_NAEMCHEN_IDNA ".example\n"
    506. 

  506.             "address: STREAM/TCP 192.0.2.98 80\n");
    507. 

  507.   check_ai ("both.cname.idn-cname.example",
    508. 

  508.             AI_IDN | AI_CANONNAME | AI_CANONIDN,
    509. 

  509.             "flags: AI_CANONNAME AI_IDN AI_CANONIDN\n"
    510. 

  510.             "canonname: " ANDERES_NAEMCHEN ".example\n"
    511. 

  511.             "address: STREAM/TCP 192.0.2.98 80\n");
    512. 

  512. 

  513.   check_ai ("both.cname.idn-cname." NAEMCHEN ".example", 0,
    514. 

  514.             "error: Name or service not known\n");
    515. 

  515.   check_ai ("both.cname.idn-cname." NAEMCHEN ".example", AI_IDN,
    516. 

  516.             "flags: AI_IDN\n"
    517. 

  517.             "address: STREAM/TCP 192.0.2.98 80\n");
    518. 

  518.   check_ai ("both.cname.idn-cname." NAEMCHEN ".example",
    519. 

  519.             AI_IDN | AI_CANONNAME,
    520. 

  520.             "flags: AI_CANONNAME AI_IDN\n"
    521. 

  521.             "canonname: " ANDERES_NAEMCHEN_IDNA ".example\n"
    522. 

  522.             "address: STREAM/TCP 192.0.2.98 80\n");
    523. 

  523.   check_ai ("both.cname.idn-cname." NAEMCHEN ".example",
    524. 

  524.             AI_IDN | AI_CANONNAME | AI_CANONIDN,
    525. 

  525.             "flags: AI_CANONNAME AI_IDN AI_CANONIDN\n"
    526. 

  526.             "canonname: " ANDERES_NAEMCHEN ".example\n"
    527. 

  527.             "address: STREAM/TCP 192.0.2.98 80\n");
    528. 

  528. }
    529. 

  529. 

  530. /* Tests for getnameinfo which assume a working libidn2 library.  */
    531. 

  531. __attribute__ ((unused))
    532. 

  532. static void
    533. 

  533. gni_tests_with_libidn2 (void)
    534. 

  534. {
    535. 

  535.   gni_test (gni_non_idn_name, 0, "non-idn.example");
    536. 

  536.   gni_test (gni_non_idn_name, NI_IDN, "non-idn.example");
    537. 

  537.   gni_test (gni_non_idn_name, NI_NUMERICHOST, "192.0.2.0");
    538. 

  538.   gni_test (gni_non_idn_name, NI_NUMERICHOST | NI_IDN, "192.0.2.0");
    539. 

  539. 

  540.   gni_test (gni_non_idn_cname_to_non_idn_name, 0, "non-idn-name.example");
    541. 

  541.   gni_test (gni_non_idn_cname_to_non_idn_name, NI_IDN, "non-idn-name.example");
    542. 

  542. 

  543.   gni_test (gni_non_idn_cname_to_idn_name, 0, NAEMCHEN_IDNA ".example");
    544. 

  544.   gni_test (gni_non_idn_cname_to_idn_name, NI_IDN, NAEMCHEN ".example");
    545. 

  545. 

  546.   gni_test (gni_idn_name, 0, NAEMCHEN_IDNA ".example");
    547. 

  547.   gni_test (gni_idn_name, NI_IDN, NAEMCHEN ".example");
    548. 

  548.   gni_test (gni_idn_shem, 0, SHEM_IDNA ".example");
    549. 

  549.   gni_test (gni_idn_shem1, 0, SHEM1_IDNA ".example");
    550. 

  550. #if TEST_USE_UTF8
    551. 

  551.   gni_test (gni_idn_shem, NI_IDN, SHEM ".example");
    552. 

  552.   gni_test (gni_idn_shem1, NI_IDN, SHEM "1.example");
    553. 

  553. #else
    554. 

  554.   gni_test (gni_idn_shem, NI_IDN, SHEM_IDNA ".example");
    555. 

  555.   gni_test (gni_idn_shem1, NI_IDN, SHEM1_IDNA ".example");
    556. 

  556. #endif
    557. 

  557. 

  558.   gni_test (gni_idn_cname_to_non_idn_name, 0, "non-idn-name.example");
    559. 

  559.   gni_test (gni_idn_cname_to_non_idn_name, NI_IDN, "non-idn-name.example");
    560. 

  560. 

  561.   gni_test (gni_idn_cname_to_idn_name, 0, ANDERES_NAEMCHEN_IDNA ".example");
    562. 

  562.   gni_test (gni_idn_cname_to_idn_name, NI_IDN, ANDERES_NAEMCHEN ".example");
    563. 

  563. 

  564.   /* Test encoding errors.  */
    565. 

  565.   gni_test (gni_invalid_idn_1, 0, "xn---.example");
    566. 

  566.   gni_test (gni_invalid_idn_1, NI_IDN, "xn---.example");
    567. 

  567.   gni_test (gni_invalid_idn_2, 0, "xn--x.example");
    568. 

  568.   gni_test (gni_invalid_idn_2, NI_IDN, "xn--x.example");
    569. 

  569. }
    570. 

  570.