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/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 2008-2009 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Pierre A. Joye <pierre@php.net> |
+----------------------------------------------------------------------+
*/
#include "php.h"
#include <windows.h>
#include <Winbase.h >
#include <Windns.h>
#include "php_dns.h"
#define PHP_DNS_NUM_TYPES 12 /* Number of DNS Types Supported by PHP currently */
#define PHP_DNS_A 0x00000001
#define PHP_DNS_NS 0x00000002
#define PHP_DNS_CNAME 0x00000010
#define PHP_DNS_SOA 0x00000020
#define PHP_DNS_PTR 0x00000800
#define PHP_DNS_HINFO 0x00001000
#define PHP_DNS_MX 0x00004000
#define PHP_DNS_TXT 0x00008000
#define PHP_DNS_A6 0x01000000
#define PHP_DNS_SRV 0x02000000
#define PHP_DNS_NAPTR 0x04000000
#define PHP_DNS_AAAA 0x08000000
#define PHP_DNS_ANY 0x10000000
#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)
PHP_FUNCTION(dns_get_mx) /* {{{ */
{
char *hostname;
int hostname_len;
zval *mx_list, *weight_list = NULL;
DNS_STATUS status; /* Return value of DnsQuery_A() function */
PDNS_RECORD pResult, pRec; /* Pointer to DNS_RECORD structure */
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sz|z", &hostname, &hostname_len, &mx_list, &weight_list) == FAILURE) {
return;
}
status = DnsQuery_A(hostname, DNS_TYPE_MX, DNS_QUERY_STANDARD, NULL, &pResult, NULL);
if (status) {
RETURN_FALSE;
}
zval_dtor(mx_list);
array_init(mx_list);
if (weight_list) {
zval_dtor(weight_list);
array_init(weight_list);
}
for (pRec = pResult; pRec; pRec = pRec->pNext) {
DNS_SRV_DATA *srv = &pRec->Data.Srv;
if (pRec->wType != DNS_TYPE_MX) {
continue;
}
add_next_index_string(mx_list, pRec->Data.MX.pNameExchange, 1);
if (weight_list) {
add_next_index_long(weight_list, srv->wPriority);
}
}
/* Free memory allocated for DNS records. */
DnsRecordListFree(pResult, DnsFreeRecordListDeep);
RETURN_TRUE;
}
/* }}} */
/* {{{ proto bool dns_check_record(string host [, string type])
Check DNS records corresponding to a given Internet host name or IP address */
PHP_FUNCTION(dns_check_record)
{
char *hostname, *rectype = NULL;
int hostname_len, rectype_len = 0;
int type = DNS_TYPE_MX;
DNS_STATUS status; /* Return value of DnsQuery_A() function */
PDNS_RECORD pResult; /* Pointer to DNS_RECORD structure */
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|s", &hostname, &hostname_len, &rectype, &rectype_len) == FAILURE) {
return;
}
if (hostname_len == 0) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Host cannot be empty");
RETURN_FALSE;
}
if (rectype) {
if (!strcasecmp("A", rectype)) type = DNS_TYPE_A;
else if (!strcasecmp("NS", rectype)) type = DNS_TYPE_NS;
else if (!strcasecmp("MX", rectype)) type = DNS_TYPE_MX;
else if (!strcasecmp("PTR", rectype)) type = DNS_TYPE_PTR;
else if (!strcasecmp("ANY", rectype)) type = DNS_TYPE_ANY;
else if (!strcasecmp("SOA", rectype)) type = DNS_TYPE_SOA;
else if (!strcasecmp("TXT", rectype)) type = DNS_TYPE_TEXT;
else if (!strcasecmp("CNAME", rectype)) type = DNS_TYPE_CNAME;
else if (!strcasecmp("AAAA", rectype)) type = DNS_TYPE_AAAA;
else if (!strcasecmp("SRV", rectype)) type = DNS_TYPE_SRV;
else if (!strcasecmp("NAPTR", rectype)) type = DNS_TYPE_NAPTR;
else if (!strcasecmp("A6", rectype)) type = DNS_TYPE_A6;
else {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Type '%s' not supported", rectype);
RETURN_FALSE;
}
}
status = DnsQuery_A(hostname, type, DNS_QUERY_STANDARD, NULL, &pResult, NULL);
if (status) {
RETURN_FALSE;
}
RETURN_TRUE;
}
/* }}} */
/* {{{ php_parserr */
static void php_parserr(PDNS_RECORD pRec, int type_to_fetch, int store, int raw, zval **subarray)
{
int type;
u_long ttl;
type = pRec->wType;
ttl = pRec->dwTtl;
if (type_to_fetch != DNS_TYPE_ANY && type != type_to_fetch) {
return;
}
if (!store) {
return;
}
ALLOC_INIT_ZVAL(*subarray);
array_init(*subarray);
add_assoc_string(*subarray, "host", pRec->pName, 1);
add_assoc_string(*subarray, "class", "IN", 1);
add_assoc_long(*subarray, "ttl", ttl);
if (raw) {
add_assoc_long(*subarray, "type", type);
add_assoc_stringl(*subarray, "data", (char*) &pRec->Data, (uint) pRec->wDataLength, 1);
return;
}
switch (type) {
case DNS_TYPE_A: {
IN_ADDR ipaddr;
ipaddr.S_un.S_addr = (pRec->Data.A.IpAddress);
add_assoc_string(*subarray, "type", "A", 1);
add_assoc_string(*subarray, "ip", inet_ntoa(ipaddr), 1);
break;
}
case DNS_TYPE_MX:
add_assoc_string(*subarray, "type", "MX", 1);
add_assoc_long(*subarray, "pri", pRec->Data.Srv.wPriority);
/* no break; */
case DNS_TYPE_CNAME:
if (type == DNS_TYPE_CNAME) {
add_assoc_string(*subarray, "type", "CNAME", 1);
}
/* no break; */
case DNS_TYPE_NS:
if (type == DNS_TYPE_NS) {
add_assoc_string(*subarray, "type", "NS", 1);
}
/* no break; */
case DNS_TYPE_PTR:
if (type == DNS_TYPE_PTR) {
add_assoc_string(*subarray, "type", "PTR", 1);
}
add_assoc_string(*subarray, "target", pRec->Data.MX.pNameExchange, 1);
break;
/* Not available on windows, the query is possible but there is no DNS_HINFO_DATA structure */
case DNS_TYPE_HINFO:
case DNS_TYPE_TEXT:
{
DWORD i = 0;
DNS_TXT_DATA *data_txt = &pRec->Data.TXT;
DWORD count = data_txt->dwStringCount;
char *txt, *txt_dst;
long txt_len = 0;
zval *entries;
add_assoc_string(*subarray, "type", "TXT", 1);
ALLOC_INIT_ZVAL(entries);
array_init(entries);
for (i = 0; i < count; i++) {
txt_len += strlen(data_txt->pStringArray[i]) + 1;
}
txt = ecalloc(txt_len * 2, 1);
txt_dst = txt;
for (i = 0; i < count; i++) {
int len = strlen(data_txt->pStringArray[i]);
memcpy(txt_dst, data_txt->pStringArray[i], len);
add_next_index_stringl(entries, data_txt->pStringArray[i], len, 1);
txt_dst += len;
}
add_assoc_string(*subarray, "txt", txt, 0);
add_assoc_zval(*subarray, "entries", entries);
}
break;
case DNS_TYPE_SOA:
{
DNS_SOA_DATA *data_soa = &pRec->Data.Soa;
add_assoc_string(*subarray, "type", "SOA", 1);
add_assoc_string(*subarray, "mname", data_soa->pNamePrimaryServer, 1);
add_assoc_string(*subarray, "rname", data_soa->pNameAdministrator, 1);
add_assoc_long(*subarray, "serial", data_soa->dwSerialNo);
add_assoc_long(*subarray, "refresh", data_soa->dwRefresh);
add_assoc_long(*subarray, "retry", data_soa->dwRetry);
add_assoc_long(*subarray, "expire", data_soa->dwExpire);
add_assoc_long(*subarray, "minimum-ttl", data_soa->dwDefaultTtl);
}
break;
case DNS_TYPE_AAAA:
{
DNS_AAAA_DATA *data_aaaa = &pRec->Data.AAAA;
char buf[sizeof("AAAA:AAAA:AAAA:AAAA:AAAA:AAAA:AAAA:AAAA")];
char *tp = buf;
int i;
unsigned short out[8];
int have_v6_break = 0, in_v6_break = 0;
for (i = 0; i < 4; ++i) {
DWORD chunk = data_aaaa->Ip6Address.IP6Dword[i];
out[i * 2] = htons(LOWORD(chunk));
out[i * 2 + 1] = htons(HIWORD(chunk));
}
for(i=0; i < 8; i++) {
if (out[i] != 0) {
if (tp > (u_char *)buf) {
in_v6_break = 0;
tp[0] = ':';
tp++;
}
tp += sprintf((char*)tp,"%x", out[i]);
} else {
if (!have_v6_break) {
have_v6_break = 1;
in_v6_break = 1;
tp[0] = ':';
tp++;
} else if (!in_v6_break) {
tp[0] = ':';
tp++;
tp[0] = '0';
tp++;
}
}
}
if (have_v6_break && in_v6_break) {
tp[0] = ':';
tp++;
}
tp[0] = '\0';
add_assoc_string(*subarray, "type", "AAAA", 1);
add_assoc_string(*subarray, "ipv6", buf, 1);
}
break;
#if 0
/* Won't be implemented. A6 is deprecated. (Pierre) */
case DNS_TYPE_A6:
break;
#endif
case DNS_TYPE_SRV:
{
DNS_SRV_DATA *data_srv = &pRec->Data.Srv;
add_assoc_string(*subarray, "type", "SRV", 1);
add_assoc_long(*subarray, "pri", data_srv->wPriority);
add_assoc_long(*subarray, "weight", data_srv->wWeight);
add_assoc_long(*subarray, "port", data_srv->wPort);
add_assoc_string(*subarray, "target", data_srv->pNameTarget, 1);
}
break;
#if _MSC_VER >= 1500
case DNS_TYPE_NAPTR:
{
DNS_NAPTR_DATA * data_naptr = &pRec->Data.Naptr;
add_assoc_string(*subarray, "type", "NAPTR", 1);
add_assoc_long(*subarray, "order", data_naptr->wOrder);
add_assoc_long(*subarray, "pref", data_naptr->wPreference);
add_assoc_string(*subarray, "flags", data_naptr->pFlags, 1);
add_assoc_string(*subarray, "services", data_naptr->pService, 1);
add_assoc_string(*subarray, "regex", data_naptr->pRegularExpression, 1);
add_assoc_string(*subarray, "replacement", data_naptr->pReplacement, 1);
}
break;
#endif
default:
/* unkown type */
zval_ptr_dtor(subarray);
*subarray = NULL;
return;
}
}
/* }}} */
/* {{{ proto array|false dns_get_record(string hostname [, int type[, array authns, array addtl]])
Get any Resource Record corresponding to a given Internet host name */
PHP_FUNCTION(dns_get_record)
{
char *hostname;
int hostname_len;
long type_param = PHP_DNS_ANY;
zval *authns = NULL, *addtl = NULL;
int type, type_to_fetch, first_query = 1, store_results = 1;
zend_bool raw = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|lz!z!b",
&hostname, &hostname_len, &type_param, &authns, &addtl, &raw) == FAILURE) {
return;
}
if (authns) {
zval_dtor(authns);
array_init(authns);
}
if (addtl) {
zval_dtor(addtl);
array_init(addtl);
}
if (!raw) {
if ((type_param & ~PHP_DNS_ALL) && (type_param != PHP_DNS_ANY)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Type '%ld' not supported", type_param);
RETURN_FALSE;
}
} else {
if ((type_param < 1) || (type_param > 0xFFFF)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING,
"Numeric DNS record type must be between 1 and 65535, '%ld' given", type_param);
RETURN_FALSE;
}
}
/* Initialize the return array */
array_init(return_value);
if (raw) {
type = -1;
} else if (type_param == PHP_DNS_ANY) {
type = PHP_DNS_NUM_TYPES + 1;
} else {
type = 0;
}
for ( ;
type < (addtl ? (PHP_DNS_NUM_TYPES + 2) : PHP_DNS_NUM_TYPES) || first_query;
type++
) {
DNS_STATUS status; /* Return value of DnsQuery_A() function */
PDNS_RECORD pResult, pRec; /* Pointer to DNS_RECORD structure */
first_query = 0;
switch (type) {
case -1: /* raw */
type_to_fetch = type_param;
/* skip over the rest and go directly to additional records */
type = PHP_DNS_NUM_TYPES - 1;
break;
case 0:
type_to_fetch = type_param&PHP_DNS_A ? DNS_TYPE_A : 0;
break;
case 1:
type_to_fetch = type_param&PHP_DNS_NS ? DNS_TYPE_NS : 0;
break;
case 2:
type_to_fetch = type_param&PHP_DNS_CNAME ? DNS_TYPE_CNAME : 0;
break;
case 3:
type_to_fetch = type_param&PHP_DNS_SOA ? DNS_TYPE_SOA : 0;
break;
case 4:
type_to_fetch = type_param&PHP_DNS_PTR ? DNS_TYPE_PTR : 0;
break;
case 5:
type_to_fetch = type_param&PHP_DNS_HINFO ? DNS_TYPE_HINFO : 0;
break;
case 6:
type_to_fetch = type_param&PHP_DNS_MX ? DNS_TYPE_MX : 0;
break;
case 7:
type_to_fetch = type_param&PHP_DNS_TXT ? DNS_TYPE_TEXT : 0;
break;
case 8:
type_to_fetch = type_param&PHP_DNS_AAAA ? DNS_TYPE_AAAA : 0;
break;
case 9:
type_to_fetch = type_param&PHP_DNS_SRV ? DNS_TYPE_SRV : 0;
break;
case 10:
type_to_fetch = type_param&PHP_DNS_NAPTR ? DNS_TYPE_NAPTR : 0;
break;
case 11:
type_to_fetch = type_param&PHP_DNS_A6 ? DNS_TYPE_A6 : 0;
break;
case PHP_DNS_NUM_TYPES:
store_results = 0;
continue;
default:
case (PHP_DNS_NUM_TYPES + 1):
type_to_fetch = DNS_TYPE_ANY;
break;
}
if (type_to_fetch) {
status = DnsQuery_A(hostname, type_to_fetch, DNS_QUERY_STANDARD, NULL, &pResult, NULL);
if (status) {
if (status == DNS_INFO_NO_RECORDS || status == DNS_ERROR_RCODE_NAME_ERROR) {
continue;
} else {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Dns Query failed");
zval_dtor(return_value);
RETURN_FALSE;
}
}
for (pRec = pResult; pRec; pRec = pRec->pNext) {
DNS_SRV_DATA *srv = &pRec->Data.Srv;
zval *retval = NULL;
if (pRec->Flags.S.Section == DnsSectionAnswer) {
php_parserr(pRec, type_to_fetch, store_results, raw, &retval);
if (retval != NULL && store_results) {
add_next_index_zval(return_value, retval);
}
}
if (authns && pRec->Flags.S.Section == DnsSectionAuthority) {
php_parserr(pRec, type_to_fetch, 1, raw, &retval);
if (retval != NULL) {
add_next_index_zval(authns, retval);
}
}
/* Stupid typo in PSDK 6.1, WinDNS.h(1258)... */
#ifndef DnsSectionAdditional
# ifdef DnsSectionAddtional
# define DnsSectionAdditional DnsSectionAddtional
# else
# define DnsSectionAdditional 3
# endif
#endif
if (addtl && pRec->Flags.S.Section == DnsSectionAdditional) {
php_parserr(pRec, type_to_fetch, 1, raw, &retval);
if (retval != NULL) {
add_next_index_zval(addtl, retval);
}
}
}
/* Free memory allocated for DNS records. */
DnsRecordListFree(pResult, DnsFreeRecordListDeep);
}
}
}
/* }}} */
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