mirror of
https://github.com/php/php-src.git
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320 lines
8.1 KiB
C
320 lines
8.1 KiB
C
/*
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+----------------------------------------------------------------------+
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| PHP version 4.0 |
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+----------------------------------------------------------------------+
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| Copyright (c) 1997, 1998, 1999, 2000 The PHP Group |
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+----------------------------------------------------------------------+
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| This source file is subject to version 2.02 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available at through the world-wide-web at |
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| http://www.php.net/license/2_02.txt. |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Authors: |
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+----------------------------------------------------------------------+
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*/
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/* $Id$ */
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#include "php.h"
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#if HAVE_SYS_SOCKET_H
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#include <sys/socket.h>
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#endif
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#ifdef PHP_WIN32
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#if HAVE_BINDLIB
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#ifndef WINNT
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#define WINNT 1
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#endif
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/* located in www.php.net/extra/bindlib.zip */
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#include "arpa/inet.h"
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#include "netdb.h"
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#include "arpa/nameser.h"
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#include "resolv.h"
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#endif
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#include <winsock.h>
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#else
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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#ifdef _OSD_POSIX
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#undef STATUS
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#undef T_UNSPEC
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#endif
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#include <arpa/nameser.h>
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#include <resolv.h>
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#endif
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#include "dns.h"
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char *php_gethostbyaddr(char *ip);
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char *php_gethostbyname(char *name);
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/* {{{ proto string gethostbyaddr(string ip_address)
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Get the Internet host name corresponding to a given IP address */
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PHP_FUNCTION(gethostbyaddr)
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{
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pval **arg;
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if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &arg) == FAILURE) {
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WRONG_PARAM_COUNT;
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}
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convert_to_string_ex(arg);
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return_value->value.str.val = php_gethostbyaddr((*arg)->value.str.val);
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return_value->value.str.len = strlen(return_value->value.str.val);
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return_value->type = IS_STRING;
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}
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/* }}} */
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char *php_gethostbyaddr(char *ip)
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{
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struct in_addr addr;
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struct hostent *hp;
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addr.s_addr = inet_addr(ip);
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if (addr.s_addr == -1) {
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#if PHP_DEBUG
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php_error(E_WARNING, "address not in a.b.c.d form");
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#endif
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return estrdup(ip);
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}
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hp = gethostbyaddr((char *) &addr, sizeof(addr), AF_INET);
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if (!hp) {
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#if PHP_DEBUG
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php_error(E_WARNING, "Unable to resolve %s\n", ip);
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#endif
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return estrdup(ip);
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}
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return estrdup(hp->h_name);
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}
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/* {{{ proto string gethostbyname(string hostname)
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Get the IP address corresponding to a given Internet host name */
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PHP_FUNCTION(gethostbyname)
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{
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pval **arg;
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if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &arg) == FAILURE) {
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WRONG_PARAM_COUNT;
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}
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convert_to_string_ex(arg);
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return_value->value.str.val = php_gethostbyname((*arg)->value.str.val);
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return_value->value.str.len = strlen(return_value->value.str.val);
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return_value->type = IS_STRING;
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}
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/* }}} */
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/* {{{ proto array gethostbynamel(string hostname)
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Return a list of IP addresses that a given hostname resolves to. */
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PHP_FUNCTION(gethostbynamel)
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{
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pval **arg;
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struct hostent *hp;
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struct in_addr in;
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int i;
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if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &arg) == FAILURE) {
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WRONG_PARAM_COUNT;
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}
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convert_to_string_ex(arg);
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if (array_init(return_value) == FAILURE) {
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RETURN_FALSE;
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}
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hp = gethostbyname((*arg)->value.str.val);
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if (hp == NULL || hp->h_addr_list == NULL) {
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#if PHP_DEBUG
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php_error(E_WARNING, "Unable to resolve %s\n", (*arg)->value.str.val);
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#endif
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return;
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}
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for (i = 0 ; hp->h_addr_list[i] != 0 ; i++) {
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in = *(struct in_addr *) hp->h_addr_list[i];
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add_next_index_string(return_value, inet_ntoa(in), 1);
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}
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return;
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}
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/* }}} */
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char *php_gethostbyname(char *name)
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{
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struct hostent *hp;
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struct in_addr in;
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hp = gethostbyname(name);
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if (!hp || !hp->h_addr_list) {
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#if PHP_DEBUG
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php_error(E_WARNING, "Unable to resolve %s\n", name);
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#endif
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return estrdup(name);
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}
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memcpy(&in.s_addr, *(hp->h_addr_list), sizeof(in.s_addr));
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return estrdup(inet_ntoa(in));
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}
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#if !defined(PHP_WIN32)||HAVE_BINDLIB
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/* {{{ proto int checkdnsrr(string host [, string type])
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Check DNS records corresponding to a given Internet host name or IP address */
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PHP_FUNCTION(checkdnsrr)
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{
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pval **arg1,**arg2;
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int type,i;
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#ifndef MAXPACKET
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#define MAXPACKET 8192 /* max packet size used internally by BIND */
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#endif
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u_char ans[MAXPACKET];
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switch (ZEND_NUM_ARGS()) {
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case 1:
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if (zend_get_parameters_ex(1, &arg1) == FAILURE) {
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WRONG_PARAM_COUNT;
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}
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type = T_MX;
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convert_to_string_ex(arg1);
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break;
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case 2:
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if (zend_get_parameters_ex(2, &arg1, &arg2) == FAILURE) {
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WRONG_PARAM_COUNT;
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}
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convert_to_string_ex(arg1);
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convert_to_string_ex(arg2);
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if ( !strcasecmp("A",(*arg2)->value.str.val) ) type = T_A;
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else if ( !strcasecmp("NS",(*arg2)->value.str.val) ) type = T_NS;
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else if ( !strcasecmp("MX",(*arg2)->value.str.val) ) type = T_MX;
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else if ( !strcasecmp("PTR",(*arg2)->value.str.val) ) type = T_PTR;
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else if ( !strcasecmp("ANY",(*arg2)->value.str.val) ) type = T_ANY;
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else if ( !strcasecmp("SOA",(*arg2)->value.str.val) ) type = T_SOA;
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else if ( !strcasecmp("CNAME",(*arg2)->value.str.val) ) type = T_CNAME;
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else {
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php_error(E_WARNING,"Type '%s' not supported",(*arg2)->value.str.val);
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RETURN_FALSE;
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}
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break;
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default:
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WRONG_PARAM_COUNT;
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}
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i = res_search((*arg1)->value.str.val,C_IN,type,ans,sizeof(ans));
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if ( i < 0 ) {
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RETURN_FALSE;
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}
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RETURN_TRUE;
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}
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/* }}} */
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#ifndef HFIXEDSZ
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#define HFIXEDSZ 12 /* fixed data in header <arpa/nameser.h> */
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#endif /* HFIXEDSZ */
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#ifndef QFIXEDSZ
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#define QFIXEDSZ 4 /* fixed data in query <arpa/nameser.h> */
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#endif /* QFIXEDSZ */
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#ifndef MAXHOSTNAMELEN
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#define MAXHOSTNAMELEN 256
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#endif /* MAXHOSTNAMELEN */
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/* {{{ proto int getmxrr(string hostname, array mxhosts [, array weight])
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Get MX records corresponding to a given Internet host name */
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PHP_FUNCTION(getmxrr)
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{
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pval *host, *mx_list, *weight_list;
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int need_weight = 0;
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int count,qdc;
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u_short type,weight;
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u_char ans[MAXPACKET];
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char buf[MAXHOSTNAMELEN];
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HEADER *hp;
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u_char *cp,*end;
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int i;
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switch(ZEND_NUM_ARGS()) {
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case 2:
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if (zend_get_parameters(ht, 2, &host, &mx_list) == FAILURE) {
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WRONG_PARAM_COUNT;
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}
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if (!ParameterPassedByReference(ht, 2)) {
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php_error(E_WARNING, "Array to be filled with values must be passed by reference.");
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RETURN_FALSE;
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}
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break;
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case 3:
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if (zend_get_parameters(ht, 3, &host, &mx_list, &weight_list) == FAILURE) {
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WRONG_PARAM_COUNT;
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}
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if (!ParameterPassedByReference(ht, 2) || !ParameterPassedByReference(ht, 3)) {
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php_error(E_WARNING, "Array to be filled with values must be passed by reference.");
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RETURN_FALSE;
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}
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need_weight = 1;
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pval_destructor(weight_list); /* start with clean array */
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if ( array_init(weight_list) == FAILURE ) {
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RETURN_FALSE;
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}
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break;
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default:
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WRONG_PARAM_COUNT;
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}
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convert_to_string( host );
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pval_destructor(mx_list); /* start with clean array */
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if ( array_init(mx_list) == FAILURE ) {
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RETURN_FALSE;
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}
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/* Go! */
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i = res_search(host->value.str.val,C_IN,T_MX,(u_char *)&ans,sizeof(ans));
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if ( i < 0 ) {
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RETURN_FALSE;
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}
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if ( i > sizeof(ans) ) i = sizeof(ans);
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hp = (HEADER *)&ans;
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cp = (u_char *)&ans + HFIXEDSZ;
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end = (u_char *)&ans +i;
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for ( qdc = ntohs((unsigned short)hp->qdcount); qdc--; cp += i + QFIXEDSZ) {
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if ( (i = dn_skipname(cp,end)) < 0 ) {
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RETURN_FALSE;
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}
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}
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count = ntohs((unsigned short)hp->ancount);
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while ( --count >= 0 && cp < end ) {
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if ( (i = dn_skipname(cp,end)) < 0 ) {
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RETURN_FALSE;
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}
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cp += i;
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GETSHORT(type,cp);
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cp += INT16SZ + INT32SZ;
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GETSHORT(i,cp);
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if ( type != T_MX ) {
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cp += i;
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continue;
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}
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GETSHORT(weight,cp);
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if ( (i = dn_expand(ans,end,cp,buf,sizeof(buf)-1)) < 0 ) {
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RETURN_FALSE;
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}
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cp += i;
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add_next_index_string(mx_list, buf, 1);
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if ( need_weight ) {
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add_next_index_long(weight_list, weight);
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}
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}
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RETURN_TRUE;
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}
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/* }}} */
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#endif
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/*
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* Local variables:
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* tab-width: 4
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* c-basic-offset: 4
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* End:
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*/
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