diff options
author | Christian Grothoff <christian@grothoff.org> | 2013-10-16 11:58:42 +0000 |
---|---|---|
committer | Christian Grothoff <christian@grothoff.org> | 2013-10-16 11:58:42 +0000 |
commit | 7848f548f552b3576dc029e276bbe4aeb4e5392c (patch) | |
tree | 87f5122378bf7d0701355da0ead63be0b04bdac5 | |
parent | 5b96183f228a540ea7b90c43955f019f86da8340 (diff) | |
download | gnunet-7848f548f552b3576dc029e276bbe4aeb4e5392c.tar.gz gnunet-7848f548f552b3576dc029e276bbe4aeb4e5392c.zip |
-define gnsrecord plugin for DNS
-rw-r--r-- | src/gnsrecord/Makefile.am | 15 | ||||
-rw-r--r-- | src/gnsrecord/plugin_gnsrecord_dns.c | 553 |
2 files changed, 568 insertions, 0 deletions
diff --git a/src/gnsrecord/Makefile.am b/src/gnsrecord/Makefile.am index 185a5312b..2fb859f39 100644 --- a/src/gnsrecord/Makefile.am +++ b/src/gnsrecord/Makefile.am | |||
@@ -34,6 +34,21 @@ libgnunetgnsrecord_la_LDFLAGS = \ | |||
34 | $(GN_LIB_LDFLAGS) $(WINFLAGS) \ | 34 | $(GN_LIB_LDFLAGS) $(WINFLAGS) \ |
35 | -version-info 0:0:0 | 35 | -version-info 0:0:0 |
36 | 36 | ||
37 | |||
38 | plugin_LTLIBRARIES = \ | ||
39 | libgnunet_plugin_gnsrecord_dns.la | ||
40 | |||
41 | |||
42 | libgnunet_plugin_gnsrecord_dns_la_SOURCES = \ | ||
43 | plugin_gnsrecord_dns.c | ||
44 | libgnunet_plugin_gnsrecord_dns_la_LIBADD = \ | ||
45 | $(top_builddir)/src/dns/libgnunetdnsparser.la \ | ||
46 | $(top_builddir)/src/util/libgnunetutil.la \ | ||
47 | $(LTLIBINTL) | ||
48 | libgnunet_plugin_gnsrecord_dns_la_LDFLAGS = \ | ||
49 | $(GN_PLUGIN_LDFLAGS) | ||
50 | |||
51 | |||
37 | EXTRA_DIST = \ | 52 | EXTRA_DIST = \ |
38 | $(check_SCRIPTS) | 53 | $(check_SCRIPTS) |
39 | 54 | ||
diff --git a/src/gnsrecord/plugin_gnsrecord_dns.c b/src/gnsrecord/plugin_gnsrecord_dns.c new file mode 100644 index 000000000..e5475118d --- /dev/null +++ b/src/gnsrecord/plugin_gnsrecord_dns.c | |||
@@ -0,0 +1,553 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | (C) 2013 Christian Grothoff (and other contributing authors) | ||
4 | |||
5 | GNUnet is free software; you can redistribute it and/or modify | ||
6 | it under the terms of the GNU General Public License as published | ||
7 | by the Free Software Foundation; either version 3, or (at your | ||
8 | option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU General Public License | ||
16 | along with GNUnet; see the file COPYING. If not, write to the | ||
17 | Free Software Foundation, Inc., 59 Temple Place - Suite 330, | ||
18 | Boston, MA 02111-1307, USA. | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file gnsrecord/plugin_gnsrecord_dns.c | ||
23 | * @brief gnsrecord plugin to provide the API for basic DNS records | ||
24 | * @author Christian Grothoff | ||
25 | */ | ||
26 | |||
27 | #include "platform.h" | ||
28 | #include "gnunet_util_lib.h" | ||
29 | #include "gnunet_dnsparser_lib.h" | ||
30 | #include "gnunet_gnsrecord_plugin.h" | ||
31 | |||
32 | |||
33 | /** | ||
34 | * Convert the 'value' of a record to a string. | ||
35 | * | ||
36 | * @param cls closure, unused | ||
37 | * @param type type of the record | ||
38 | * @param data value in binary encoding | ||
39 | * @param data_size number of bytes in @a data | ||
40 | * @return NULL on error, otherwise human-readable representation of the value | ||
41 | */ | ||
42 | static char * | ||
43 | dns_value_to_string (void *cls, | ||
44 | uint32_t type, | ||
45 | const void *data, | ||
46 | size_t data_size) | ||
47 | { | ||
48 | const char *cdata; | ||
49 | char* result; | ||
50 | char tmp[INET6_ADDRSTRLEN]; | ||
51 | |||
52 | switch (type) | ||
53 | { | ||
54 | case GNUNET_DNSPARSER_TYPE_A: | ||
55 | if (data_size != sizeof (struct in_addr)) | ||
56 | return NULL; | ||
57 | if (NULL == inet_ntop (AF_INET, data, tmp, sizeof (tmp))) | ||
58 | return NULL; | ||
59 | return GNUNET_strdup (tmp); | ||
60 | case GNUNET_DNSPARSER_TYPE_NS: | ||
61 | { | ||
62 | char *ns; | ||
63 | size_t off; | ||
64 | |||
65 | off = 0; | ||
66 | ns = GNUNET_DNSPARSER_parse_name (data, | ||
67 | data_size, | ||
68 | &off); | ||
69 | if ( (NULL == ns) || | ||
70 | (off != data_size) ) | ||
71 | { | ||
72 | GNUNET_break_op (0); | ||
73 | return NULL; | ||
74 | } | ||
75 | return ns; | ||
76 | } | ||
77 | case GNUNET_DNSPARSER_TYPE_CNAME: | ||
78 | { | ||
79 | char *cname; | ||
80 | size_t off; | ||
81 | |||
82 | off = 0; | ||
83 | cname = GNUNET_DNSPARSER_parse_name (data, | ||
84 | data_size, | ||
85 | &off); | ||
86 | if ( (NULL == cname) || | ||
87 | (off != data_size) ) | ||
88 | { | ||
89 | GNUNET_break_op (0); | ||
90 | GNUNET_free_non_null (cname); | ||
91 | return NULL; | ||
92 | } | ||
93 | return cname; | ||
94 | } | ||
95 | case GNUNET_DNSPARSER_TYPE_SOA: | ||
96 | { | ||
97 | struct GNUNET_DNSPARSER_SoaRecord *soa; | ||
98 | size_t off; | ||
99 | |||
100 | off = 0; | ||
101 | soa = GNUNET_DNSPARSER_parse_soa (data, | ||
102 | data_size, | ||
103 | &off); | ||
104 | if ( (NULL == soa) || | ||
105 | (off != data_size) ) | ||
106 | { | ||
107 | GNUNET_break_op (0); | ||
108 | return NULL; | ||
109 | } | ||
110 | GNUNET_asprintf (&result, | ||
111 | "rname=%s mname=%s %lu,%lu,%lu,%lu,%lu", | ||
112 | soa->rname, | ||
113 | soa->mname, | ||
114 | soa->serial, | ||
115 | soa->refresh, | ||
116 | soa->retry, | ||
117 | soa->expire, | ||
118 | soa->minimum_ttl); | ||
119 | GNUNET_DNSPARSER_free_soa (soa); | ||
120 | return result; | ||
121 | } | ||
122 | case GNUNET_DNSPARSER_TYPE_PTR: | ||
123 | { | ||
124 | char *ptr; | ||
125 | size_t off; | ||
126 | |||
127 | off = 0; | ||
128 | ptr = GNUNET_DNSPARSER_parse_name (data, | ||
129 | data_size, | ||
130 | &off); | ||
131 | if ( (NULL == ptr) || | ||
132 | (off != data_size) ) | ||
133 | { | ||
134 | GNUNET_break_op (0); | ||
135 | GNUNET_free_non_null (ptr); | ||
136 | return NULL; | ||
137 | } | ||
138 | return ptr; | ||
139 | } | ||
140 | case GNUNET_DNSPARSER_TYPE_MX: | ||
141 | { | ||
142 | struct GNUNET_DNSPARSER_MxRecord *mx; | ||
143 | size_t off; | ||
144 | |||
145 | off = 0; | ||
146 | mx = GNUNET_DNSPARSER_parse_mx (data, | ||
147 | data_size, | ||
148 | &off); | ||
149 | if ( (NULL == mx) || | ||
150 | (off != data_size) ) | ||
151 | { | ||
152 | GNUNET_break_op (0); | ||
153 | GNUNET_free_non_null (mx); | ||
154 | return NULL; | ||
155 | } | ||
156 | GNUNET_asprintf (&result, | ||
157 | "%hu,%s", | ||
158 | mx->preference, | ||
159 | mx->mxhost); | ||
160 | GNUNET_DNSPARSER_free_mx (mx); | ||
161 | return result; | ||
162 | } | ||
163 | case GNUNET_DNSPARSER_TYPE_TXT: | ||
164 | return GNUNET_strndup (data, data_size); | ||
165 | case GNUNET_DNSPARSER_TYPE_AAAA: | ||
166 | if (data_size != sizeof (struct in6_addr)) | ||
167 | return NULL; | ||
168 | if (NULL == inet_ntop (AF_INET6, data, tmp, sizeof (tmp))) | ||
169 | return NULL; | ||
170 | return GNUNET_strdup (tmp); | ||
171 | case GNUNET_DNSPARSER_TYPE_SRV: | ||
172 | { | ||
173 | struct GNUNET_DNSPARSER_SrvRecord *srv; | ||
174 | size_t off; | ||
175 | |||
176 | off = 0; | ||
177 | srv = GNUNET_DNSPARSER_parse_srv ("+", /* FIXME: is this OK? */ | ||
178 | data, | ||
179 | data_size, | ||
180 | &off); | ||
181 | if ( (NULL == srv) || | ||
182 | (off != data_size) ) | ||
183 | { | ||
184 | GNUNET_break_op (0); | ||
185 | return NULL; | ||
186 | } | ||
187 | GNUNET_asprintf (&result, | ||
188 | "%d %d %d _%s._%s.%s", | ||
189 | srv->priority, | ||
190 | srv->weight, | ||
191 | srv->port, | ||
192 | srv->service, | ||
193 | srv->proto, | ||
194 | srv->domain_name); | ||
195 | GNUNET_DNSPARSER_free_srv (srv); | ||
196 | return result; | ||
197 | } | ||
198 | case GNUNET_DNSPARSER_TYPE_TLSA: | ||
199 | { | ||
200 | const struct GNUNET_TUN_DnsTlsaRecord *tlsa; | ||
201 | char* tlsa_str; | ||
202 | |||
203 | cdata = data; | ||
204 | if ( (data_size <= sizeof (struct GNUNET_TUN_DnsTlsaRecord)) || | ||
205 | ('\0' != cdata[data_size - 1]) ) | ||
206 | return NULL; /* malformed */ | ||
207 | tlsa = data; | ||
208 | if (0 == GNUNET_asprintf (&tlsa_str, | ||
209 | "%c %c %c %s", | ||
210 | tlsa->usage, | ||
211 | tlsa->selector, | ||
212 | tlsa->matching_type, | ||
213 | (const char *) &tlsa[1])) | ||
214 | { | ||
215 | GNUNET_free (tlsa_str); | ||
216 | return NULL; | ||
217 | } | ||
218 | return tlsa_str; | ||
219 | } | ||
220 | default: | ||
221 | return NULL; | ||
222 | } | ||
223 | } | ||
224 | |||
225 | |||
226 | /** | ||
227 | * Convert human-readable version of a 'value' of a record to the binary | ||
228 | * representation. | ||
229 | * | ||
230 | * @param cls closure, unused | ||
231 | * @param type type of the record | ||
232 | * @param s human-readable string | ||
233 | * @param data set to value in binary encoding (will be allocated) | ||
234 | * @param data_size set to number of bytes in @a data | ||
235 | * @return #GNUNET_OK on success | ||
236 | */ | ||
237 | static int | ||
238 | dns_string_to_value (void *cls, | ||
239 | uint32_t type, | ||
240 | const char *s, | ||
241 | void **data, | ||
242 | size_t *data_size) | ||
243 | { | ||
244 | struct in_addr value_a; | ||
245 | struct in6_addr value_aaaa; | ||
246 | struct GNUNET_TUN_DnsTlsaRecord *tlsa; | ||
247 | |||
248 | if (NULL == s) | ||
249 | return GNUNET_SYSERR; | ||
250 | switch (type) | ||
251 | { | ||
252 | case GNUNET_DNSPARSER_TYPE_A: | ||
253 | if (1 != inet_pton (AF_INET, s, &value_a)) | ||
254 | { | ||
255 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
256 | _("Unable to parse IPv4 address `%s'\n"), | ||
257 | s); | ||
258 | return GNUNET_SYSERR; | ||
259 | } | ||
260 | *data = GNUNET_malloc (sizeof (struct in_addr)); | ||
261 | memcpy (*data, &value_a, sizeof (value_a)); | ||
262 | *data_size = sizeof (value_a); | ||
263 | return GNUNET_OK; | ||
264 | case GNUNET_DNSPARSER_TYPE_NS: | ||
265 | { | ||
266 | char nsbuf[256]; | ||
267 | size_t off; | ||
268 | |||
269 | off = 0; | ||
270 | if (GNUNET_OK != | ||
271 | GNUNET_DNSPARSER_builder_add_name (nsbuf, | ||
272 | sizeof (nsbuf), | ||
273 | &off, | ||
274 | s)) | ||
275 | { | ||
276 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
277 | _("Failed to serialize NS record with value `%s'\n"), | ||
278 | s); | ||
279 | return GNUNET_SYSERR; | ||
280 | } | ||
281 | *data_size = off; | ||
282 | *data = GNUNET_malloc (off); | ||
283 | memcpy (*data, nsbuf, off); | ||
284 | return GNUNET_OK; | ||
285 | } | ||
286 | case GNUNET_DNSPARSER_TYPE_CNAME: | ||
287 | { | ||
288 | char cnamebuf[256]; | ||
289 | size_t off; | ||
290 | |||
291 | off = 0; | ||
292 | if (GNUNET_OK != | ||
293 | GNUNET_DNSPARSER_builder_add_name (cnamebuf, | ||
294 | sizeof (cnamebuf), | ||
295 | &off, | ||
296 | s)) | ||
297 | { | ||
298 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
299 | _("Failed to serialize CNAME record with value `%s'\n"), | ||
300 | s); | ||
301 | return GNUNET_SYSERR; | ||
302 | } | ||
303 | *data_size = off; | ||
304 | *data = GNUNET_malloc (off); | ||
305 | memcpy (*data, cnamebuf, off); | ||
306 | return GNUNET_OK; | ||
307 | } | ||
308 | case GNUNET_DNSPARSER_TYPE_SOA: | ||
309 | { | ||
310 | struct GNUNET_DNSPARSER_SoaRecord soa; | ||
311 | char soabuf[540]; | ||
312 | char soa_rname[253 + 1]; | ||
313 | char soa_mname[253 + 1]; | ||
314 | unsigned int soa_serial; | ||
315 | unsigned int soa_refresh; | ||
316 | unsigned int soa_retry; | ||
317 | unsigned int soa_expire; | ||
318 | unsigned int soa_min; | ||
319 | size_t off; | ||
320 | |||
321 | if (7 != SSCANF (s, | ||
322 | "rname=%253s mname=%253s %u,%u,%u,%u,%u", | ||
323 | soa_rname, soa_mname, | ||
324 | &soa_serial, &soa_refresh, &soa_retry, &soa_expire, &soa_min)) | ||
325 | { | ||
326 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
327 | _("Unable to parse SOA record `%s'\n"), | ||
328 | s); | ||
329 | return GNUNET_SYSERR; | ||
330 | } | ||
331 | soa.mname = soa_mname; | ||
332 | soa.rname = soa_rname; | ||
333 | soa.serial = (uint32_t) soa_serial; | ||
334 | soa.refresh =(uint32_t) soa_refresh; | ||
335 | soa.retry = (uint32_t) soa_retry; | ||
336 | soa.expire = (uint32_t) soa_expire; | ||
337 | soa.minimum_ttl = (uint32_t) soa_min; | ||
338 | off = 0; | ||
339 | if (GNUNET_OK != | ||
340 | GNUNET_DNSPARSER_builder_add_soa (soabuf, | ||
341 | sizeof (soabuf), | ||
342 | &off, | ||
343 | &soa)) | ||
344 | { | ||
345 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
346 | _("Failed to serialize SOA record with mname `%s' and rname `%s'\n"), | ||
347 | soa_mname, | ||
348 | soa_rname); | ||
349 | return GNUNET_SYSERR; | ||
350 | } | ||
351 | *data_size = off; | ||
352 | *data = GNUNET_malloc (off); | ||
353 | memcpy (*data, soabuf, off); | ||
354 | return GNUNET_OK; | ||
355 | } | ||
356 | case GNUNET_DNSPARSER_TYPE_PTR: | ||
357 | { | ||
358 | char ptrbuf[256]; | ||
359 | size_t off; | ||
360 | |||
361 | off = 0; | ||
362 | if (GNUNET_OK != | ||
363 | GNUNET_DNSPARSER_builder_add_name (ptrbuf, | ||
364 | sizeof (ptrbuf), | ||
365 | &off, | ||
366 | s)) | ||
367 | { | ||
368 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
369 | _("Failed to serialize PTR record with value `%s'\n"), | ||
370 | s); | ||
371 | return GNUNET_SYSERR; | ||
372 | } | ||
373 | *data_size = off; | ||
374 | *data = GNUNET_malloc (off); | ||
375 | memcpy (*data, ptrbuf, off); | ||
376 | return GNUNET_OK; | ||
377 | } | ||
378 | case GNUNET_DNSPARSER_TYPE_MX: | ||
379 | { | ||
380 | struct GNUNET_DNSPARSER_MxRecord mx; | ||
381 | char mxbuf[258]; | ||
382 | char mxhost[253 + 1]; | ||
383 | uint16_t mx_pref; | ||
384 | size_t off; | ||
385 | |||
386 | if (2 != SSCANF(s, "%hu,%253s", &mx_pref, mxhost)) | ||
387 | { | ||
388 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
389 | _("Unable to parse MX record `%s'\n"), | ||
390 | s); | ||
391 | return GNUNET_SYSERR; | ||
392 | } | ||
393 | mx.preference = mx_pref; | ||
394 | mx.mxhost = mxhost; | ||
395 | off = 0; | ||
396 | |||
397 | if (GNUNET_OK != | ||
398 | GNUNET_DNSPARSER_builder_add_mx (mxbuf, | ||
399 | sizeof (mxbuf), | ||
400 | &off, | ||
401 | &mx)) | ||
402 | { | ||
403 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
404 | _("Failed to serialize MX record with hostname `%s'\n"), | ||
405 | mxhost); | ||
406 | return GNUNET_SYSERR; | ||
407 | } | ||
408 | *data_size = off; | ||
409 | *data = GNUNET_malloc (off); | ||
410 | memcpy (*data, mxbuf, off); | ||
411 | return GNUNET_OK; | ||
412 | } | ||
413 | case GNUNET_DNSPARSER_TYPE_SRV: | ||
414 | GNUNET_break (0); // FIXME: not implemented! | ||
415 | return GNUNET_SYSERR; | ||
416 | case GNUNET_DNSPARSER_TYPE_TXT: | ||
417 | *data = GNUNET_strdup (s); | ||
418 | *data_size = strlen (s); | ||
419 | return GNUNET_OK; | ||
420 | case GNUNET_DNSPARSER_TYPE_AAAA: | ||
421 | if (1 != inet_pton (AF_INET6, s, &value_aaaa)) | ||
422 | { | ||
423 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
424 | _("Unable to parse IPv6 address `%s'\n"), | ||
425 | s); | ||
426 | return GNUNET_SYSERR; | ||
427 | } | ||
428 | *data = GNUNET_malloc (sizeof (struct in6_addr)); | ||
429 | *data_size = sizeof (struct in6_addr); | ||
430 | memcpy (*data, &value_aaaa, sizeof (value_aaaa)); | ||
431 | return GNUNET_OK; | ||
432 | case GNUNET_DNSPARSER_TYPE_TLSA: | ||
433 | *data_size = sizeof (struct GNUNET_TUN_DnsTlsaRecord) + strlen (s) - 6; | ||
434 | *data = tlsa = GNUNET_malloc (*data_size); | ||
435 | if (4 != SSCANF (s, "%c %c %c %s", | ||
436 | &tlsa->usage, | ||
437 | &tlsa->selector, | ||
438 | &tlsa->matching_type, | ||
439 | (char*)&tlsa[1])) | ||
440 | { | ||
441 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
442 | _("Unable to parse TLSA record string `%s'\n"), | ||
443 | s); | ||
444 | *data_size = 0; | ||
445 | GNUNET_free (tlsa); | ||
446 | return GNUNET_SYSERR; | ||
447 | } | ||
448 | return GNUNET_OK; | ||
449 | default: | ||
450 | return GNUNET_SYSERR; | ||
451 | } | ||
452 | } | ||
453 | |||
454 | |||
455 | /** | ||
456 | * Mapping of record type numbers to human-readable | ||
457 | * record type names. | ||
458 | */ | ||
459 | static struct { | ||
460 | const char *name; | ||
461 | uint32_t number; | ||
462 | } name_map[] = { | ||
463 | { "A", GNUNET_DNSPARSER_TYPE_A }, | ||
464 | { "NS", GNUNET_DNSPARSER_TYPE_NS }, | ||
465 | { "CNAME", GNUNET_DNSPARSER_TYPE_CNAME }, | ||
466 | { "SOA", GNUNET_DNSPARSER_TYPE_SOA }, | ||
467 | { "PTR", GNUNET_DNSPARSER_TYPE_PTR }, | ||
468 | { "MX", GNUNET_DNSPARSER_TYPE_MX }, | ||
469 | { "TXT", GNUNET_DNSPARSER_TYPE_TXT }, | ||
470 | { "AAAA", GNUNET_DNSPARSER_TYPE_AAAA }, | ||
471 | { "TLSA", GNUNET_DNSPARSER_TYPE_TLSA }, | ||
472 | { NULL, UINT32_MAX } | ||
473 | }; | ||
474 | |||
475 | |||
476 | /** | ||
477 | * Convert a type name (i.e. "AAAA") to the corresponding number. | ||
478 | * | ||
479 | * @param cls closure, unused | ||
480 | * @param dns_typename name to convert | ||
481 | * @return corresponding number, UINT32_MAX on error | ||
482 | */ | ||
483 | static uint32_t | ||
484 | dns_typename_to_number (void *cls, | ||
485 | const char *dns_typename) | ||
486 | { | ||
487 | unsigned int i; | ||
488 | |||
489 | i=0; | ||
490 | while ( (name_map[i].name != NULL) && | ||
491 | (0 != strcasecmp (dns_typename, name_map[i].name)) ) | ||
492 | i++; | ||
493 | return name_map[i].number; | ||
494 | } | ||
495 | |||
496 | |||
497 | /** | ||
498 | * Convert a type number (i.e. 1) to the corresponding type string (i.e. "A") | ||
499 | * | ||
500 | * @param cls closure, unused | ||
501 | * @param type number of a type to convert | ||
502 | * @return corresponding typestring, NULL on error | ||
503 | */ | ||
504 | static const char * | ||
505 | dns_number_to_typename (void *cls, | ||
506 | uint32_t type) | ||
507 | { | ||
508 | unsigned int i; | ||
509 | |||
510 | i=0; | ||
511 | while ( (name_map[i].name != NULL) && | ||
512 | (type != name_map[i].number) ) | ||
513 | i++; | ||
514 | return name_map[i].name; | ||
515 | } | ||
516 | |||
517 | |||
518 | /** | ||
519 | * Entry point for the plugin. | ||
520 | * | ||
521 | * @param cls NULL | ||
522 | * @return the exported block API | ||
523 | */ | ||
524 | void * | ||
525 | libgnunet_plugin_gnsrecord_dns_init (void *cls) | ||
526 | { | ||
527 | struct GNUNET_GNSRECORD_PluginFunctions *api; | ||
528 | |||
529 | api = GNUNET_new (struct GNUNET_GNSRECORD_PluginFunctions); | ||
530 | api->value_to_string = &dns_value_to_string; | ||
531 | api->string_to_value = &dns_string_to_value; | ||
532 | api->typename_to_number = &dns_typename_to_number; | ||
533 | api->number_to_typename = &dns_number_to_typename; | ||
534 | return api; | ||
535 | } | ||
536 | |||
537 | |||
538 | /** | ||
539 | * Exit point from the plugin. | ||
540 | * | ||
541 | * @param cls the return value from #libgnunet_plugin_block_test_init | ||
542 | * @return NULL | ||
543 | */ | ||
544 | void * | ||
545 | libgnunet_plugin_gnsrecord_dns_done (void *cls) | ||
546 | { | ||
547 | struct GNUNET_GNSRECORD_PluginFunctions *api = cls; | ||
548 | |||
549 | GNUNET_free (api); | ||
550 | return NULL; | ||
551 | } | ||
552 | |||
553 | /* end of plugin_gnsrecord_dns.c */ | ||