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-rw-r--r--ext/standard/dns.c349
1 files changed, 336 insertions, 13 deletions
diff --git a/ext/standard/dns.c b/ext/standard/dns.c
index 901c6c6322..cb68897944 100644
--- a/ext/standard/dns.c
+++ b/ext/standard/dns.c
@@ -12,15 +12,15 @@
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
- | Author: |
+ | Authors: The typical suspects |
+ | Pollita <pollita@php.net> |
+ | Marcus Boerger <helly@php.net> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
-/* {{{ includes
- */
-
+/* {{{ includes */
#include "php.h"
#if HAVE_SYS_SOCKET_H
@@ -104,8 +104,7 @@ PHP_FUNCTION(gethostbyaddr)
}
/* }}} */
-/* {{{ php_gethostbyaddr
- */
+/* {{{ php_gethostbyaddr */
static char *php_gethostbyaddr(char *ip)
{
#if HAVE_IPV6 && !defined(__MacOSX__)
@@ -190,8 +189,7 @@ PHP_FUNCTION(gethostbynamel)
}
/* }}} */
-/* {{{ php_gethostbyname
- */
+/* {{{ php_gethostbyname */
static char *php_gethostbyname(char *name)
{
struct hostent *hp;
@@ -211,9 +209,9 @@ static char *php_gethostbyname(char *name)
#if HAVE_RES_SEARCH && !(defined(__BEOS__)||defined(PHP_WIN32) || defined(NETWARE))
-/* {{{ proto int checkdnsrr(string host [, string type])
+/* {{{ proto int dns_check_recored(string host [, string type])
Check DNS records corresponding to a given Internet host name or IP address */
-PHP_FUNCTION(checkdnsrr)
+PHP_FUNCTION(dns_check_record)
{
zval **arg1, **arg2;
int type, i;
@@ -265,6 +263,35 @@ PHP_FUNCTION(checkdnsrr)
}
/* }}} */
+#if HAVE_DNS_FUNCS
+
+/* PHP_DNS_xx = 1<<(T_xx-1) */
+#define PHP_DNS_A 0x00000001
+#define PHP_DNS_NS 0x00000002
+#define PHP_DNS_CNAME 0x00000020
+#define PHP_DNS_SOA 0x00000040
+#define PHP_DNS_PTR 0x00000800
+#define PHP_DNS_HINFO 0x00001000
+#define PHP_DNS_MX 0x00004000
+#define PHP_DNS_TXT 0x00008000
+
+#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_MINIT_FUNCTION(dns) {
+ REGISTER_LONG_CONSTANT("DNS_A", PHP_DNS_A, CONST_CS | CONST_PERSISTENT);
+ REGISTER_LONG_CONSTANT("DNS_NS", PHP_DNS_NS, CONST_CS | CONST_PERSISTENT);
+ REGISTER_LONG_CONSTANT("DNS_CNAME", PHP_DNS_CNAME, CONST_CS | CONST_PERSISTENT);
+ REGISTER_LONG_CONSTANT("DNS_SOA", PHP_DNS_SOA, CONST_CS | CONST_PERSISTENT);
+ REGISTER_LONG_CONSTANT("DNS_PTR", PHP_DNS_PTR, CONST_CS | CONST_PERSISTENT);
+ REGISTER_LONG_CONSTANT("DNS_HINFO", PHP_DNS_HINFO, CONST_CS | CONST_PERSISTENT);
+ REGISTER_LONG_CONSTANT("DNS_MX", PHP_DNS_MX, CONST_CS | CONST_PERSISTENT);
+ REGISTER_LONG_CONSTANT("DNS_TXT", PHP_DNS_TXT, CONST_CS | CONST_PERSISTENT);
+ REGISTER_LONG_CONSTANT("DNS_ANY", PHP_DNS_ANY, CONST_CS | CONST_PERSISTENT);
+ REGISTER_LONG_CONSTANT("DNS_ALL", PHP_DNS_ALL, CONST_CS | CONST_PERSISTENT);
+ return SUCCESS;
+}
+
#ifndef HFIXEDSZ
#define HFIXEDSZ 12 /* fixed data in header <arpa/nameser.h> */
#endif /* HFIXEDSZ */
@@ -277,9 +304,303 @@ PHP_FUNCTION(checkdnsrr)
#define MAXHOSTNAMELEN 256
#endif /* MAXHOSTNAMELEN */
-/* {{{ proto int getmxrr(string hostname, array mxhosts [, array weight])
+#ifndef MAXRESOURCERECORDS
+#define MAXRESOURCERECORDS 64
+#endif /* MAXRESOURCERECORDS */
+
+typedef union {
+ HEADER qb1;
+ u_char qb2[65536];
+} querybuf;
+
+/* {{{ php_parserr */
+static u_char *php_parserr(u_char *cp, querybuf *answer, int type_to_fetch, int store, zval **subarray) {
+ u_short type, class, dlen;
+ u_long ttl;
+ long n, i;
+ char name[MAXHOSTNAMELEN];
+
+ n = dn_expand(answer->qb2, answer->qb2+65536, cp, name, (sizeof(name)) - 2);
+ if (n < 0) {
+ return NULL;
+ }
+ cp += n;
+
+ GETSHORT(type, cp);
+ GETSHORT(class, cp);
+ GETLONG(ttl, cp);
+ GETSHORT(dlen, cp);
+ if (type_to_fetch != T_ANY && type != type_to_fetch) {
+ /* Should never actually occour */
+ return NULL;
+ }
+
+ if (!store) {
+ *subarray = NULL;
+ cp += dlen;
+ return cp;
+ }
+
+ MAKE_STD_ZVAL(*subarray);
+ if (array_init(*subarray) != SUCCESS) {
+ return NULL;
+ }
+
+ add_assoc_string(*subarray, "host", name, 1);
+ switch (type) {
+ case T_A:
+ add_assoc_string(*subarray, "type", "A", 1);
+ sprintf(name, "%d.%d.%d.%d", cp[0], cp[1], cp[2], cp[3]);
+ add_assoc_string(*subarray, "ip", name, 1);
+ cp += dlen;
+ break;
+ case T_MX:
+ add_assoc_string(*subarray, "type", "MX", 1);
+ GETSHORT(n, cp);
+ add_assoc_long(*subarray, "pri", n);
+ /* no break; */
+ case T_CNAME:
+ if (type == T_CNAME)
+ add_assoc_string(*subarray, "type", "CNAME", 1);
+ /* no break; */
+ case T_NS:
+ if (type == T_NS)
+ add_assoc_string(*subarray, "type", "NS", 1);
+ /* no break; */
+ case T_PTR:
+ if (type == T_PTR)
+ add_assoc_string(*subarray, "type", "PTR", 1);
+ n = dn_expand(answer->qb2, answer->qb2+65536, cp, name, (sizeof name) - 2);
+ if (n < 0) {
+ return NULL;
+ }
+ cp += n;
+ add_assoc_string(*subarray, "target", name, 1);
+ break;
+ case T_HINFO:
+ /* See RFC 1010 for values */
+ add_assoc_string(*subarray, "type", "HINFO", 1);
+ GETSHORT(n, cp);
+ add_assoc_long(*subarray, "cpu", n);
+ GETSHORT(n, cp);
+ add_assoc_long(*subarray, "os", n);
+ break;
+ case T_TXT:
+ add_assoc_string(*subarray, "type", "TXT", 1);
+ n = cp[0];
+ for(i=1; i<=n; i++)
+ name[i-1] = cp[i];
+ name[i-1] = '\0';
+ cp += dlen;
+ add_assoc_string(*subarray, "txt", name, 1);
+ break;
+ case T_SOA:
+ add_assoc_string(*subarray, "type", "SOA", 1);
+ n = dn_expand(answer->qb2, answer->qb2+65536, cp, name, (sizeof name) -2);
+ if (n < 0) {
+ return NULL;
+ }
+ cp += n;
+ add_assoc_string(*subarray, "mname", name, 1);
+ n = dn_expand(answer->qb2, answer->qb2+65536, cp, name, (sizeof name) -2);
+ if (n < 0) {
+ return NULL;
+ }
+ cp += n;
+ add_assoc_string(*subarray, "rname", name, 1);
+ GETLONG(n, cp);
+ add_assoc_long(*subarray, "serial", n);
+ GETLONG(n, cp);
+ add_assoc_long(*subarray, "refresh", n);
+ GETLONG(n, cp);
+ add_assoc_long(*subarray, "retry", n);
+ GETLONG(n, cp);
+ add_assoc_long(*subarray, "expire", n);
+ GETLONG(n, cp);
+ add_assoc_long(*subarray, "minimum-ttl", n);
+ break;
+ default:
+ cp += dlen;
+ }
+
+ add_assoc_string(*subarray, "class", "IN", 1);
+ add_assoc_long(*subarray, "ttl", ttl);
+
+ return cp;
+}
+/* }}} */
+
+/* {{{ 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)
+{
+ zval *subarray[MAXRESOURCERECORDS];
+ pval *addtl, *host, *authns, *fetch_type;
+ int addtl_recs = 0;
+ int type_to_fetch, type_param = PHP_DNS_ANY;
+ int current_subarray = 0;
+ struct __res_state res;
+ HEADER *hp;
+ querybuf buf, answer, *ans;
+ u_char *cp = NULL, *end = NULL;
+ long n, qd, an, ns = 0, ar = 0;
+ int type, first_query = 1, store_results = 1;
+
+ switch (ZEND_NUM_ARGS()) {
+ case 1:
+ if (zend_get_parameters(ht, 1, &host) == FAILURE) {
+ WRONG_PARAM_COUNT;
+ }
+ break;
+ case 2:
+ if (zend_get_parameters(ht, 2, &host, &fetch_type) == FAILURE) {
+ WRONG_PARAM_COUNT;
+ }
+ type_param = Z_LVAL_P(fetch_type);
+ break;
+ case 4:
+ if (zend_get_parameters(ht, 4, &host, &fetch_type, &authns, &addtl) == FAILURE) {
+ WRONG_PARAM_COUNT;
+ }
+ type_param = Z_LVAL_P(fetch_type);
+ pval_destructor(authns);
+ addtl_recs = 1; /* We want the additional Records */
+ if (array_init(authns) != SUCCESS) {
+ RETURN_FALSE;
+ }
+ pval_destructor(addtl);
+ if (array_init(addtl) != SUCCESS) {
+ RETURN_FALSE;
+ }
+ break;
+ default:
+ WRONG_PARAM_COUNT;
+ }
+
+ convert_to_string(host);
+
+ if (type_param&~PHP_DNS_ALL && type_param!=PHP_DNS_ANY) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Type '%d' not supported", type_param);
+ RETURN_FALSE;
+ }
+
+ /* Initialize the return array */
+ if (array_init(return_value) != SUCCESS) {
+ RETURN_FALSE;
+ }
+
+ /* - We emulate an or'ed type mask by querying type by type. (Steps 0 - 7)
+ * If additional info is wanted we check again with T_ANY (step 8/9)
+ * store_results is used to skip storing the results retrieved in step
+ * 9 when results were already fetched.
+ * - In case of PHP_DNS_ANY we use the directly fetch T_ANY. (step 9)
+ */
+ for(type = (type_param==PHP_DNS_ANY ? 9 : 0); type < (addtl_recs ? 10 : 8) || first_query; type++)
+ {
+ first_query = 0;
+ switch(type) {
+ case 0:
+ type_to_fetch = type_param&PHP_DNS_A ? T_A : 0;
+ break;
+ case 1:
+ type_to_fetch = type_param&PHP_DNS_NS ? T_NS : 0;
+ break;
+ case 2:
+ type_to_fetch = type_param&PHP_DNS_CNAME ? T_CNAME : 0;
+ break;
+ case 3:
+ type_to_fetch = type_param&PHP_DNS_SOA ? T_SOA : 0;
+ break;
+ case 4:
+ type_to_fetch = type_param&PHP_DNS_PTR ? T_PTR : 0;
+ break;
+ case 5:
+ type_to_fetch = type_param&PHP_DNS_HINFO ? T_HINFO : 0;
+ break;
+ case 6:
+ type_to_fetch = type_param&PHP_DNS_MX ? T_MX : 0;
+ break;
+ case 7:
+ type_to_fetch = type_param&PHP_DNS_TXT ? T_TXT : 0;
+ break;
+ case 8:
+ store_results = 0;
+ continue;
+ default:
+ case 9:
+ type_to_fetch = T_ANY;
+ break;
+ }
+ if (type_to_fetch) {
+ res_ninit(&res);
+ res.retrans = 5;
+ res.options &= ~RES_DEFNAMES;
+
+ n = res_nmkquery(&res, QUERY, Z_STRVAL_P(host), C_IN, type_to_fetch, NULL, 0, NULL, buf.qb2, sizeof buf);
+ if (n<0) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "res_nmkquery() failed");
+ zval_ptr_dtor(&return_value);
+ RETURN_FALSE;
+ }
+ n = res_nsend(&res, buf.qb2, n, answer.qb2, sizeof answer);
+ if (n<0) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "res_nsend() failed");
+ zval_ptr_dtor(&return_value);
+ RETURN_FALSE;
+ }
+
+ cp = answer.qb2 + HFIXEDSZ;
+ end = answer.qb2 + n;
+ ans = &answer;
+ hp = (HEADER *)ans;
+ qd = ntohs(hp->qdcount);
+ an = ntohs(hp->ancount);
+ ns = ntohs(hp->nscount);
+ ar = ntohs(hp->arcount);
+
+ /* Skip QD entries, they're only used by dn_expand later on */
+ while (qd-- > 0) {
+ n = dn_skipname(cp, end);
+ if (n < 0) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to parse DNS data received");
+ zval_ptr_dtor(&return_value);
+ RETURN_FALSE;
+ }
+ cp += n + QFIXEDSZ;
+ }
+
+ /* YAY! Our real answers! */
+ while (an-- && cp && cp < end) {
+ cp = php_parserr(cp, &answer, type_to_fetch, store_results, &subarray[current_subarray]);
+ if (subarray[current_subarray] != NULL && store_results)
+ zend_hash_next_index_insert(HASH_OF(return_value), (void *)&subarray[current_subarray], sizeof(zval *), NULL);
+ current_subarray++;
+ }
+ }
+ }
+
+ if (addtl_recs) {
+ /* List of Authoritative Name Servers */
+ while (ns-- > 0 && cp && cp < end) {
+ cp = php_parserr(cp, &answer, T_ANY, 1, &subarray[current_subarray]);
+ if (subarray[current_subarray] != NULL)
+ zend_hash_next_index_insert(HASH_OF(authns), (void *)&subarray[current_subarray], sizeof(zval *), NULL);
+ current_subarray++;
+ }
+ /* Additional records associated with authoritative name servers */
+ while (ar-- > 0 && cp && cp < end) {
+ cp = php_parserr(cp, &answer, T_ANY, 1, &subarray[current_subarray]);
+ if (subarray[current_subarray] != NULL)
+ zend_hash_next_index_insert(HASH_OF(addtl), (void *)&subarray[current_subarray], sizeof(zval *), NULL);
+ current_subarray++;
+ }
+ }
+}
+/* }}} */
+
+/* {{{ proto bool dns_get_mx(string hostname, array mxhosts [, array weight])
Get MX records corresponding to a given Internet host name */
-PHP_FUNCTION(getmxrr)
+PHP_FUNCTION(dns_get_mx)
{
pval *host, *mx_list, *weight_list;
int need_weight = 0;
@@ -362,7 +683,9 @@ PHP_FUNCTION(getmxrr)
}
/* }}} */
-#endif
+#endif /* HAVE_DNS_FUNCS */
+#endif /* HAVE_RES_SEARCH && !(defined(__BEOS__)||defined(PHP_WIN32) || defined(NETWARE)) */
+
/*
* Local variables:
* tab-width: 4
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