1 /*
2 +----------------------------------------------------------------------+
3 | PHP Version 5 |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 2008-2009 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,zval ** subarray)141 static void php_parserr(PDNS_RECORD pRec, int type_to_fetch, int store, 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 switch (type) {
162 case DNS_TYPE_A: {
163 IN_ADDR ipaddr;
164 ipaddr.S_un.S_addr = (pRec->Data.A.IpAddress);
165 add_assoc_string(*subarray, "type", "A", 1);
166 add_assoc_string(*subarray, "ip", inet_ntoa(ipaddr), 1);
167 break;
168 }
169
170 case DNS_TYPE_MX:
171 add_assoc_string(*subarray, "type", "MX", 1);
172 add_assoc_long(*subarray, "pri", pRec->Data.Srv.wPriority);
173 /* no break; */
174
175 case DNS_TYPE_CNAME:
176 if (type == DNS_TYPE_CNAME) {
177 add_assoc_string(*subarray, "type", "CNAME", 1);
178 }
179 /* no break; */
180
181 case DNS_TYPE_NS:
182 if (type == DNS_TYPE_NS) {
183 add_assoc_string(*subarray, "type", "NS", 1);
184 }
185 /* no break; */
186
187 case DNS_TYPE_PTR:
188 if (type == DNS_TYPE_PTR) {
189 add_assoc_string(*subarray, "type", "PTR", 1);
190 }
191 add_assoc_string(*subarray, "target", pRec->Data.MX.pNameExchange, 1);
192 break;
193
194 /* Not available on windows, the query is possible but there is no DNS_HINFO_DATA structure */
195 case DNS_TYPE_HINFO:
196 case DNS_TYPE_TEXT:
197 {
198 DWORD i = 0;
199 DNS_TXT_DATA *data_txt = &pRec->Data.TXT;
200 DWORD count = data_txt->dwStringCount;
201 char *txt, *txt_dst;
202 long txt_len = 0;
203 zval *entries;
204
205 add_assoc_string(*subarray, "type", "TXT", 1);
206
207 ALLOC_INIT_ZVAL(entries);
208 array_init(entries);
209
210 for (i = 0; i < count; i++) {
211 txt_len += strlen(data_txt->pStringArray[i]) + 1;
212 }
213
214 txt = ecalloc(txt_len * 2, 1);
215 txt_dst = txt;
216 for (i = 0; i < count; i++) {
217 int len = strlen(data_txt->pStringArray[i]);
218 memcpy(txt_dst, data_txt->pStringArray[i], len);
219 add_next_index_stringl(entries, data_txt->pStringArray[i], len, 1);
220 txt_dst += len;
221 }
222
223 add_assoc_string(*subarray, "txt", txt, 0);
224 add_assoc_zval(*subarray, "entries", entries);
225 }
226 break;
227
228 case DNS_TYPE_SOA:
229 {
230 DNS_SOA_DATA *data_soa = &pRec->Data.Soa;
231
232 add_assoc_string(*subarray, "type", "SOA", 1);
233
234 add_assoc_string(*subarray, "mname", data_soa->pNamePrimaryServer, 1);
235 add_assoc_string(*subarray, "rname", data_soa->pNameAdministrator, 1);
236 add_assoc_long(*subarray, "serial", data_soa->dwSerialNo);
237 add_assoc_long(*subarray, "refresh", data_soa->dwRefresh);
238 add_assoc_long(*subarray, "retry", data_soa->dwRetry);
239 add_assoc_long(*subarray, "expire", data_soa->dwExpire);
240 add_assoc_long(*subarray, "minimum-ttl", data_soa->dwDefaultTtl);
241 }
242 break;
243
244 case DNS_TYPE_AAAA:
245 {
246 DNS_AAAA_DATA *data_aaaa = &pRec->Data.AAAA;
247 char buf[sizeof("AAAA:AAAA:AAAA:AAAA:AAAA:AAAA:AAAA:AAAA")];
248 char *tp = buf;
249 int i;
250 unsigned short out[8];
251 int have_v6_break = 0, in_v6_break = 0;
252
253 for (i = 0; i < 4; ++i) {
254 DWORD chunk = data_aaaa->Ip6Address.IP6Dword[i];
255 out[i * 2] = htons(LOWORD(chunk));
256 out[i * 2 + 1] = htons(HIWORD(chunk));
257 }
258
259 for(i=0; i < 8; i++) {
260 if (out[i] != 0) {
261 if (tp > (u_char *)buf) {
262 in_v6_break = 0;
263 tp[0] = ':';
264 tp++;
265 }
266 tp += sprintf((char*)tp,"%x", out[i]);
267 } else {
268 if (!have_v6_break) {
269 have_v6_break = 1;
270 in_v6_break = 1;
271 tp[0] = ':';
272 tp++;
273 } else if (!in_v6_break) {
274 tp[0] = ':';
275 tp++;
276 tp[0] = '0';
277 tp++;
278 }
279 }
280 }
281
282 if (have_v6_break && in_v6_break) {
283 tp[0] = ':';
284 tp++;
285 }
286 tp[0] = '\0';
287
288 add_assoc_string(*subarray, "type", "AAAA", 1);
289 add_assoc_string(*subarray, "ipv6", buf, 1);
290 }
291 break;
292
293 #if 0
294 /* Won't be implemented. A6 is deprecated. (Pierre) */
295 case DNS_TYPE_A6:
296 break;
297 #endif
298
299 case DNS_TYPE_SRV:
300 {
301 DNS_SRV_DATA *data_srv = &pRec->Data.Srv;
302
303 add_assoc_string(*subarray, "type", "SRV", 1);
304 add_assoc_long(*subarray, "pri", data_srv->wPriority);
305 add_assoc_long(*subarray, "weight", data_srv->wWeight);
306 add_assoc_long(*subarray, "port", data_srv->wPort);
307 add_assoc_string(*subarray, "target", data_srv->pNameTarget, 1);
308 }
309 break;
310
311 case DNS_TYPE_NAPTR:
312 {
313 #if _MSC_VER >= 1500
314 DNS_NAPTR_DATA * data_naptr = &pRec->Data.Naptr;
315
316 add_assoc_string(*subarray, "type", "NAPTR", 1);
317 add_assoc_long(*subarray, "order", data_naptr->wOrder);
318 add_assoc_long(*subarray, "pref", data_naptr->wPreference);
319 add_assoc_string(*subarray, "flags", data_naptr->pFlags, 1);
320 add_assoc_string(*subarray, "services", data_naptr->pService, 1);
321 add_assoc_string(*subarray, "regex", data_naptr->pRegularExpression, 1);
322 add_assoc_string(*subarray, "replacement", data_naptr->pReplacement, 1);
323 #endif
324 }
325 break;
326
327 default:
328 break;
329 }
330
331 add_assoc_string(*subarray, "class", "IN", 1);
332 add_assoc_long(*subarray, "ttl", ttl);
333 }
334 /* }}} */
335
336 /* {{{ proto array|false dns_get_record(string hostname [, int type[, array authns, array addtl]])
337 Get any Resource Record corresponding to a given Internet host name */
PHP_FUNCTION(dns_get_record)338 PHP_FUNCTION(dns_get_record)
339 {
340 char *hostname;
341 int hostname_len;
342 long type_param = PHP_DNS_ANY;
343 zval *authns = NULL, *addtl = NULL;
344 int type, type_to_fetch, first_query = 1, store_results = 1;
345
346 if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|lzz", &hostname, &hostname_len, &type_param, &authns, &addtl) == FAILURE) {
347 return;
348 }
349
350 if (authns) {
351 zval_dtor(authns);
352 array_init(authns);
353 }
354 if (addtl) {
355 zval_dtor(addtl);
356 array_init(addtl);
357 }
358
359 if (type_param & ~PHP_DNS_ALL && type_param != PHP_DNS_ANY) {
360 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Type '%ld' not supported", type_param);
361 RETURN_FALSE;
362 }
363
364 /* Initialize the return array */
365 array_init(return_value);
366
367 for (type = (type_param == PHP_DNS_ANY ? (PHP_DNS_NUM_TYPES + 1) : 0);
368 type < (addtl ? (PHP_DNS_NUM_TYPES + 2) : PHP_DNS_NUM_TYPES) || first_query;
369 type++
370 ) {
371 DNS_STATUS status; /* Return value of DnsQuery_A() function */
372 PDNS_RECORD pResult, pRec; /* Pointer to DNS_RECORD structure */
373
374 first_query = 0;
375 switch (type) {
376 case 0:
377 type_to_fetch = type_param&PHP_DNS_A ? DNS_TYPE_A : 0;
378 break;
379 case 1:
380 type_to_fetch = type_param&PHP_DNS_NS ? DNS_TYPE_NS : 0;
381 break;
382 case 2:
383 type_to_fetch = type_param&PHP_DNS_CNAME ? DNS_TYPE_CNAME : 0;
384 break;
385 case 3:
386 type_to_fetch = type_param&PHP_DNS_SOA ? DNS_TYPE_SOA : 0;
387 break;
388 case 4:
389 type_to_fetch = type_param&PHP_DNS_PTR ? DNS_TYPE_PTR : 0;
390 break;
391 case 5:
392 type_to_fetch = type_param&PHP_DNS_HINFO ? DNS_TYPE_HINFO : 0;
393 break;
394 case 6:
395 type_to_fetch = type_param&PHP_DNS_MX ? DNS_TYPE_MX : 0;
396 break;
397 case 7:
398 type_to_fetch = type_param&PHP_DNS_TXT ? DNS_TYPE_TEXT : 0;
399 break;
400 case 8:
401 type_to_fetch = type_param&PHP_DNS_AAAA ? DNS_TYPE_AAAA : 0;
402 break;
403 case 9:
404 type_to_fetch = type_param&PHP_DNS_SRV ? DNS_TYPE_SRV : 0;
405 break;
406 case 10:
407 type_to_fetch = type_param&PHP_DNS_NAPTR ? DNS_TYPE_NAPTR : 0;
408 break;
409 case 11:
410 type_to_fetch = type_param&PHP_DNS_A6 ? DNS_TYPE_A6 : 0;
411 break;
412 case PHP_DNS_NUM_TYPES:
413 store_results = 0;
414 continue;
415 default:
416 case (PHP_DNS_NUM_TYPES + 1):
417 type_to_fetch = DNS_TYPE_ANY;
418 break;
419 }
420
421 if (type_to_fetch) {
422 status = DnsQuery_A(hostname, type_to_fetch, DNS_QUERY_STANDARD, NULL, &pResult, NULL);
423
424 if (status) {
425 if (status == DNS_INFO_NO_RECORDS || status == DNS_ERROR_RCODE_NAME_ERROR) {
426 continue;
427 } else {
428 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Dns Query failed");
429 zval_dtor(return_value);
430 RETURN_FALSE;
431 }
432 }
433
434 for (pRec = pResult; pRec; pRec = pRec->pNext) {
435 DNS_SRV_DATA *srv = &pRec->Data.Srv;
436 zval *retval = NULL;
437
438 if (pRec->Flags.S.Section == DnsSectionAnswer) {
439 php_parserr(pRec, type_to_fetch, store_results, &retval);
440 if (retval != NULL && store_results) {
441 add_next_index_zval(return_value, retval);
442 }
443 }
444
445 if (authns && pRec->Flags.S.Section == DnsSectionAuthority) {
446
447 php_parserr(pRec, type_to_fetch, store_results, &retval);
448 if (retval != NULL) {
449 add_next_index_zval(authns, retval);
450 }
451 }
452
453 /* Stupid typo in PSDK 6.1, WinDNS.h(1258)... */
454 #ifndef DnsSectionAdditional
455 # ifdef DnsSectionAddtional
456 # define DnsSectionAdditional DnsSectionAddtional
457 # else
458 # define DnsSectionAdditional 3
459 # endif
460 #endif
461 if (addtl && pRec->Flags.S.Section == DnsSectionAdditional) {
462 php_parserr(pRec, type_to_fetch, store_results, &retval);
463 if (retval != NULL) {
464 add_next_index_zval(addtl, retval);
465 }
466 }
467 }
468 /* Free memory allocated for DNS records. */
469 DnsRecordListFree(pResult, DnsFreeRecordListDeep);
470 }
471 }
472 }
473 /* }}} */
474
