1 /*
2 +----------------------------------------------------------------------+
3 | PHP Version 5 |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 2008-2016 The PHP Group |
6 +----------------------------------------------------------------------+
7 | This source file is subject to version 3.01 of the PHP license, |
8 | that is bundled with this package in the file LICENSE, and is |
9 | available through the world-wide-web at the following url: |
10 | http://www.php.net/license/3_01.txt |
11 | If you did not receive a copy of the PHP license and are unable to |
12 | obtain it through the world-wide-web, please send a note to |
13 | license@php.net so we can mail you a copy immediately. |
14 +----------------------------------------------------------------------+
15 | Authors: Pierre A. Joye <pierre@php.net> |
16 +----------------------------------------------------------------------+
17 */
18
19 #include "php.h"
20
21 #include <windows.h>
22 #include <Winbase.h >
23 #include <Windns.h>
24
25 #include "php_dns.h"
26
27 #define PHP_DNS_NUM_TYPES 12 /* Number of DNS Types Supported by PHP currently */
28
29 #define PHP_DNS_A 0x00000001
30 #define PHP_DNS_NS 0x00000002
31 #define PHP_DNS_CNAME 0x00000010
32 #define PHP_DNS_SOA 0x00000020
33 #define PHP_DNS_PTR 0x00000800
34 #define PHP_DNS_HINFO 0x00001000
35 #define PHP_DNS_MX 0x00004000
36 #define PHP_DNS_TXT 0x00008000
37 #define PHP_DNS_A6 0x01000000
38 #define PHP_DNS_SRV 0x02000000
39 #define PHP_DNS_NAPTR 0x04000000
40 #define PHP_DNS_AAAA 0x08000000
41 #define PHP_DNS_ANY 0x10000000
42 #define PHP_DNS_ALL (PHP_DNS_A|PHP_DNS_NS|PHP_DNS_CNAME|PHP_DNS_SOA|PHP_DNS_PTR|PHP_DNS_HINFO|PHP_DNS_MX|PHP_DNS_TXT|PHP_DNS_A6|PHP_DNS_SRV|PHP_DNS_NAPTR|PHP_DNS_AAAA)
43
PHP_FUNCTION(dns_get_mx)44 PHP_FUNCTION(dns_get_mx) /* {{{ */
45 {
46 char *hostname;
47 int hostname_len;
48 zval *mx_list, *weight_list = NULL;
49
50 DNS_STATUS status; /* Return value of DnsQuery_A() function */
51 PDNS_RECORD pResult, pRec; /* Pointer to DNS_RECORD structure */
52
53 if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sz|z", &hostname, &hostname_len, &mx_list, &weight_list) == FAILURE) {
54 return;
55 }
56
57 status = DnsQuery_A(hostname, DNS_TYPE_MX, DNS_QUERY_STANDARD, NULL, &pResult, NULL);
58
59 if (status) {
60 RETURN_FALSE;
61 }
62
63 zval_dtor(mx_list);
64 array_init(mx_list);
65
66 if (weight_list) {
67 zval_dtor(weight_list);
68 array_init(weight_list);
69 }
70
71 for (pRec = pResult; pRec; pRec = pRec->pNext) {
72 DNS_SRV_DATA *srv = &pRec->Data.Srv;
73
74 if (pRec->wType != DNS_TYPE_MX) {
75 continue;
76 }
77
78 add_next_index_string(mx_list, pRec->Data.MX.pNameExchange, 1);
79 if (weight_list) {
80 add_next_index_long(weight_list, srv->wPriority);
81 }
82 }
83
84 /* Free memory allocated for DNS records. */
85 DnsRecordListFree(pResult, DnsFreeRecordListDeep);
86
87 RETURN_TRUE;
88 }
89 /* }}} */
90
91 /* {{{ proto bool dns_check_record(string host [, string type])
92 Check DNS records corresponding to a given Internet host name or IP address */
PHP_FUNCTION(dns_check_record)93 PHP_FUNCTION(dns_check_record)
94 {
95 char *hostname, *rectype = NULL;
96 int hostname_len, rectype_len = 0;
97 int type = DNS_TYPE_MX;
98
99 DNS_STATUS status; /* Return value of DnsQuery_A() function */
100 PDNS_RECORD pResult; /* Pointer to DNS_RECORD structure */
101
102 if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|s", &hostname, &hostname_len, &rectype, &rectype_len) == FAILURE) {
103 return;
104 }
105
106 if (hostname_len == 0) {
107 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Host cannot be empty");
108 RETURN_FALSE;
109 }
110
111 if (rectype) {
112 if (!strcasecmp("A", rectype)) type = DNS_TYPE_A;
113 else if (!strcasecmp("NS", rectype)) type = DNS_TYPE_NS;
114 else if (!strcasecmp("MX", rectype)) type = DNS_TYPE_MX;
115 else if (!strcasecmp("PTR", rectype)) type = DNS_TYPE_PTR;
116 else if (!strcasecmp("ANY", rectype)) type = DNS_TYPE_ANY;
117 else if (!strcasecmp("SOA", rectype)) type = DNS_TYPE_SOA;
118 else if (!strcasecmp("TXT", rectype)) type = DNS_TYPE_TEXT;
119 else if (!strcasecmp("CNAME", rectype)) type = DNS_TYPE_CNAME;
120 else if (!strcasecmp("AAAA", rectype)) type = DNS_TYPE_AAAA;
121 else if (!strcasecmp("SRV", rectype)) type = DNS_TYPE_SRV;
122 else if (!strcasecmp("NAPTR", rectype)) type = DNS_TYPE_NAPTR;
123 else if (!strcasecmp("A6", rectype)) type = DNS_TYPE_A6;
124 else {
125 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Type '%s' not supported", rectype);
126 RETURN_FALSE;
127 }
128 }
129
130 status = DnsQuery_A(hostname, type, DNS_QUERY_STANDARD, NULL, &pResult, NULL);
131
132 if (status) {
133 RETURN_FALSE;
134 }
135
136 RETURN_TRUE;
137 }
138 /* }}} */
139
140 /* {{{ php_parserr */
php_parserr(PDNS_RECORD pRec,int type_to_fetch,int store,int raw,zval ** subarray)141 static void php_parserr(PDNS_RECORD pRec, int type_to_fetch, int store, int raw, zval **subarray)
142 {
143 int type;
144 u_long ttl;
145
146 type = pRec->wType;
147 ttl = pRec->dwTtl;
148
149 if (type_to_fetch != DNS_TYPE_ANY && type != type_to_fetch) {
150 return;
151 }
152
153 if (!store) {
154 return;
155 }
156
157 ALLOC_INIT_ZVAL(*subarray);
158 array_init(*subarray);
159
160 add_assoc_string(*subarray, "host", pRec->pName, 1);
161 add_assoc_string(*subarray, "class", "IN", 1);
162 add_assoc_long(*subarray, "ttl", ttl);
163
164 if (raw) {
165 add_assoc_long(*subarray, "type", type);
166 add_assoc_stringl(*subarray, "data", (char*) &pRec->Data, (uint) pRec->wDataLength, 1);
167 return;
168 }
169
170 switch (type) {
171 case DNS_TYPE_A: {
172 IN_ADDR ipaddr;
173 ipaddr.S_un.S_addr = (pRec->Data.A.IpAddress);
174 add_assoc_string(*subarray, "type", "A", 1);
175 add_assoc_string(*subarray, "ip", inet_ntoa(ipaddr), 1);
176 break;
177 }
178
179 case DNS_TYPE_MX:
180 add_assoc_string(*subarray, "type", "MX", 1);
181 add_assoc_long(*subarray, "pri", pRec->Data.Srv.wPriority);
182 /* no break; */
183
184 case DNS_TYPE_CNAME:
185 if (type == DNS_TYPE_CNAME) {
186 add_assoc_string(*subarray, "type", "CNAME", 1);
187 }
188 /* no break; */
189
190 case DNS_TYPE_NS:
191 if (type == DNS_TYPE_NS) {
192 add_assoc_string(*subarray, "type", "NS", 1);
193 }
194 /* no break; */
195
196 case DNS_TYPE_PTR:
197 if (type == DNS_TYPE_PTR) {
198 add_assoc_string(*subarray, "type", "PTR", 1);
199 }
200 add_assoc_string(*subarray, "target", pRec->Data.MX.pNameExchange, 1);
201 break;
202
203 /* Not available on windows, the query is possible but there is no DNS_HINFO_DATA structure */
204 case DNS_TYPE_HINFO:
205 case DNS_TYPE_TEXT:
206 {
207 DWORD i = 0;
208 DNS_TXT_DATA *data_txt = &pRec->Data.TXT;
209 DWORD count = data_txt->dwStringCount;
210 char *txt, *txt_dst;
211 long txt_len = 0;
212 zval *entries;
213
214 add_assoc_string(*subarray, "type", "TXT", 1);
215
216 ALLOC_INIT_ZVAL(entries);
217 array_init(entries);
218
219 for (i = 0; i < count; i++) {
220 txt_len += strlen(data_txt->pStringArray[i]) + 1;
221 }
222
223 txt = ecalloc(txt_len * 2, 1);
224 txt_dst = txt;
225 for (i = 0; i < count; i++) {
226 int len = strlen(data_txt->pStringArray[i]);
227 memcpy(txt_dst, data_txt->pStringArray[i], len);
228 add_next_index_stringl(entries, data_txt->pStringArray[i], len, 1);
229 txt_dst += len;
230 }
231
232 add_assoc_string(*subarray, "txt", txt, 0);
233 add_assoc_zval(*subarray, "entries", entries);
234 }
235 break;
236
237 case DNS_TYPE_SOA:
238 {
239 DNS_SOA_DATA *data_soa = &pRec->Data.Soa;
240
241 add_assoc_string(*subarray, "type", "SOA", 1);
242
243 add_assoc_string(*subarray, "mname", data_soa->pNamePrimaryServer, 1);
244 add_assoc_string(*subarray, "rname", data_soa->pNameAdministrator, 1);
245 add_assoc_long(*subarray, "serial", data_soa->dwSerialNo);
246 add_assoc_long(*subarray, "refresh", data_soa->dwRefresh);
247 add_assoc_long(*subarray, "retry", data_soa->dwRetry);
248 add_assoc_long(*subarray, "expire", data_soa->dwExpire);
249 add_assoc_long(*subarray, "minimum-ttl", data_soa->dwDefaultTtl);
250 }
251 break;
252
253 case DNS_TYPE_AAAA:
254 {
255 DNS_AAAA_DATA *data_aaaa = &pRec->Data.AAAA;
256 char buf[sizeof("AAAA:AAAA:AAAA:AAAA:AAAA:AAAA:AAAA:AAAA")];
257 char *tp = buf;
258 int i;
259 unsigned short out[8];
260 int have_v6_break = 0, in_v6_break = 0;
261
262 for (i = 0; i < 4; ++i) {
263 DWORD chunk = data_aaaa->Ip6Address.IP6Dword[i];
264 out[i * 2] = htons(LOWORD(chunk));
265 out[i * 2 + 1] = htons(HIWORD(chunk));
266 }
267
268 for(i=0; i < 8; i++) {
269 if (out[i] != 0) {
270 if (tp > (u_char *)buf) {
271 in_v6_break = 0;
272 tp[0] = ':';
273 tp++;
274 }
275 tp += sprintf((char*)tp,"%x", out[i]);
276 } else {
277 if (!have_v6_break) {
278 have_v6_break = 1;
279 in_v6_break = 1;
280 tp[0] = ':';
281 tp++;
282 } else if (!in_v6_break) {
283 tp[0] = ':';
284 tp++;
285 tp[0] = '0';
286 tp++;
287 }
288 }
289 }
290
291 if (have_v6_break && in_v6_break) {
292 tp[0] = ':';
293 tp++;
294 }
295 tp[0] = '\0';
296
297 add_assoc_string(*subarray, "type", "AAAA", 1);
298 add_assoc_string(*subarray, "ipv6", buf, 1);
299 }
300 break;
301
302 #if 0
303 /* Won't be implemented. A6 is deprecated. (Pierre) */
304 case DNS_TYPE_A6:
305 break;
306 #endif
307
308 case DNS_TYPE_SRV:
309 {
310 DNS_SRV_DATA *data_srv = &pRec->Data.Srv;
311
312 add_assoc_string(*subarray, "type", "SRV", 1);
313 add_assoc_long(*subarray, "pri", data_srv->wPriority);
314 add_assoc_long(*subarray, "weight", data_srv->wWeight);
315 add_assoc_long(*subarray, "port", data_srv->wPort);
316 add_assoc_string(*subarray, "target", data_srv->pNameTarget, 1);
317 }
318 break;
319
320 #if _MSC_VER >= 1500
321 case DNS_TYPE_NAPTR:
322 {
323 DNS_NAPTR_DATA * data_naptr = &pRec->Data.Naptr;
324
325 add_assoc_string(*subarray, "type", "NAPTR", 1);
326 add_assoc_long(*subarray, "order", data_naptr->wOrder);
327 add_assoc_long(*subarray, "pref", data_naptr->wPreference);
328 add_assoc_string(*subarray, "flags", data_naptr->pFlags, 1);
329 add_assoc_string(*subarray, "services", data_naptr->pService, 1);
330 add_assoc_string(*subarray, "regex", data_naptr->pRegularExpression, 1);
331 add_assoc_string(*subarray, "replacement", data_naptr->pReplacement, 1);
332 }
333 break;
334 #endif
335
336 default:
337 /* unknown type */
338 zval_ptr_dtor(subarray);
339 *subarray = NULL;
340 return;
341 }
342
343 }
344 /* }}} */
345
346 /* {{{ proto array|false dns_get_record(string hostname [, int type[, array authns, array addtl]])
347 Get any Resource Record corresponding to a given Internet host name */
PHP_FUNCTION(dns_get_record)348 PHP_FUNCTION(dns_get_record)
349 {
350 char *hostname;
351 int hostname_len;
352 long type_param = PHP_DNS_ANY;
353 zval *authns = NULL, *addtl = NULL;
354 int type, type_to_fetch, first_query = 1, store_results = 1;
355 zend_bool raw = 0;
356
357 if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|lz!z!b",
358 &hostname, &hostname_len, &type_param, &authns, &addtl, &raw) == FAILURE) {
359 return;
360 }
361
362 if (authns) {
363 zval_dtor(authns);
364 array_init(authns);
365 }
366 if (addtl) {
367 zval_dtor(addtl);
368 array_init(addtl);
369 }
370
371 if (!raw) {
372 if ((type_param & ~PHP_DNS_ALL) && (type_param != PHP_DNS_ANY)) {
373 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Type '%ld' not supported", type_param);
374 RETURN_FALSE;
375 }
376 } else {
377 if ((type_param < 1) || (type_param > 0xFFFF)) {
378 php_error_docref(NULL TSRMLS_CC, E_WARNING,
379 "Numeric DNS record type must be between 1 and 65535, '%ld' given", type_param);
380 RETURN_FALSE;
381 }
382 }
383
384 /* Initialize the return array */
385 array_init(return_value);
386
387 if (raw) {
388 type = -1;
389 } else if (type_param == PHP_DNS_ANY) {
390 type = PHP_DNS_NUM_TYPES + 1;
391 } else {
392 type = 0;
393 }
394
395 for ( ;
396 type < (addtl ? (PHP_DNS_NUM_TYPES + 2) : PHP_DNS_NUM_TYPES) || first_query;
397 type++
398 ) {
399 DNS_STATUS status; /* Return value of DnsQuery_A() function */
400 PDNS_RECORD pResult, pRec; /* Pointer to DNS_RECORD structure */
401
402 first_query = 0;
403 switch (type) {
404 case -1: /* raw */
405 type_to_fetch = type_param;
406 /* skip over the rest and go directly to additional records */
407 type = PHP_DNS_NUM_TYPES - 1;
408 break;
409 case 0:
410 type_to_fetch = type_param&PHP_DNS_A ? DNS_TYPE_A : 0;
411 break;
412 case 1:
413 type_to_fetch = type_param&PHP_DNS_NS ? DNS_TYPE_NS : 0;
414 break;
415 case 2:
416 type_to_fetch = type_param&PHP_DNS_CNAME ? DNS_TYPE_CNAME : 0;
417 break;
418 case 3:
419 type_to_fetch = type_param&PHP_DNS_SOA ? DNS_TYPE_SOA : 0;
420 break;
421 case 4:
422 type_to_fetch = type_param&PHP_DNS_PTR ? DNS_TYPE_PTR : 0;
423 break;
424 case 5:
425 type_to_fetch = type_param&PHP_DNS_HINFO ? DNS_TYPE_HINFO : 0;
426 break;
427 case 6:
428 type_to_fetch = type_param&PHP_DNS_MX ? DNS_TYPE_MX : 0;
429 break;
430 case 7:
431 type_to_fetch = type_param&PHP_DNS_TXT ? DNS_TYPE_TEXT : 0;
432 break;
433 case 8:
434 type_to_fetch = type_param&PHP_DNS_AAAA ? DNS_TYPE_AAAA : 0;
435 break;
436 case 9:
437 type_to_fetch = type_param&PHP_DNS_SRV ? DNS_TYPE_SRV : 0;
438 break;
439 case 10:
440 type_to_fetch = type_param&PHP_DNS_NAPTR ? DNS_TYPE_NAPTR : 0;
441 break;
442 case 11:
443 type_to_fetch = type_param&PHP_DNS_A6 ? DNS_TYPE_A6 : 0;
444 break;
445 case PHP_DNS_NUM_TYPES:
446 store_results = 0;
447 continue;
448 default:
449 case (PHP_DNS_NUM_TYPES + 1):
450 type_to_fetch = DNS_TYPE_ANY;
451 break;
452 }
453
454 if (type_to_fetch) {
455 status = DnsQuery_A(hostname, type_to_fetch, DNS_QUERY_STANDARD, NULL, &pResult, NULL);
456
457 if (status) {
458 if (status == DNS_INFO_NO_RECORDS || status == DNS_ERROR_RCODE_NAME_ERROR) {
459 continue;
460 } else {
461 php_error_docref(NULL TSRMLS_CC, E_WARNING, "DNS Query failed");
462 zval_dtor(return_value);
463 RETURN_FALSE;
464 }
465 }
466
467 for (pRec = pResult; pRec; pRec = pRec->pNext) {
468 DNS_SRV_DATA *srv = &pRec->Data.Srv;
469 zval *retval = NULL;
470
471 if (pRec->Flags.S.Section == DnsSectionAnswer) {
472 php_parserr(pRec, type_to_fetch, store_results, raw, &retval);
473 if (retval != NULL && store_results) {
474 add_next_index_zval(return_value, retval);
475 }
476 }
477
478 if (authns && pRec->Flags.S.Section == DnsSectionAuthority) {
479
480 php_parserr(pRec, type_to_fetch, 1, raw, &retval);
481 if (retval != NULL) {
482 add_next_index_zval(authns, retval);
483 }
484 }
485
486 /* Stupid typo in PSDK 6.1, WinDNS.h(1258)... */
487 #ifndef DnsSectionAdditional
488 # ifdef DnsSectionAddtional
489 # define DnsSectionAdditional DnsSectionAddtional
490 # else
491 # define DnsSectionAdditional 3
492 # endif
493 #endif
494 if (addtl && pRec->Flags.S.Section == DnsSectionAdditional) {
495 php_parserr(pRec, type_to_fetch, 1, raw, &retval);
496 if (retval != NULL) {
497 add_next_index_zval(addtl, retval);
498 }
499 }
500 }
501 /* Free memory allocated for DNS records. */
502 DnsRecordListFree(pResult, DnsFreeRecordListDeep);
503 }
504 }
505 }
506 /* }}} */
507
