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:
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 */
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 */
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 */
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: /* }}} */
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