Description:
------------
The following code works fine in php 4.x for windows, appears to work fine in 4.x/5.x under linux, but in the distributed windows binarys, and also my own compilation, results in an infinite loop, in what appears to be xmlParseChunk. This issue only seems to occur if the xml header i.e. <?xml version='1.0'?> is not included in the response, and it's the windows build.






Reproduce code:
---------------
$foo = "<methodResponse>
<params>
<param>
<value><string>Welcome</string></value>
</param>
</params>
</methodResponse>";
var_dump($foo);
var_dump(xmlrpc_decode($foo));


Expected result:
----------------
Result under freebsd:
> php/bin/php test.php
Content-type: text/html
X-Powered-By: PHP/5.0.4-dev

string(110) "<methodResponse>
<params>
<param>
<value><string>Welcome</string></value>
</param>
</params>
</methodResponse>"
string(7) "Welcome"


Actual result:
--------------
inifinite loop:

char * data=0x00a40528 is "<x></x>"

 	php5ts_debug.dll!_xmlParseDocument()  + 0x5c5	C
 	php5ts_debug.dll!_xmlParseChunk()  + 0xe5	C
>	php5ts_debug.dll!php_XML_Parse(_XML_Parser * parser=0x00a3f060, const unsigned char * data=0x00a40528, int data_len=7, int is_final=1)  Line 481 + 0x18	C
 	php5ts_debug.dll!xml_elem_parse_buf(const char * in_buf=0x00a40528, int len=7, _xml_input_options * options=0x0012f298, _xml_elem_error * error=0x0012f18c)  Line 699 + 0x16	C
 	php5ts_debug.dll!XMLRPC_REQUEST_FromXML(const char * in_buf=0x00a40528, int len=7, _xmlrpc_request_input_options * in_options=0x0012f298)  Line 762 + 0x1c	C
 	php5ts_debug.dll!decode_request_worker(_zval_struct * xml_in=0x00a40440, _zval_struct * encoding_in=0x00000000, _zval_struct * method_name_out=0x00000000)  Line 713 + 0x16	C
 	php5ts_debug.dll!zif_xmlrpc_decode(int ht=1, _zval_struct * return_value=0x00a3f018, _zval_struct * this_ptr=0x00000000, int return_value_used=1, void * * * tsrm_ls=0x00912910)  Line 778 + 0x31	C