add nil thing to xml func

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@4248 d0543943-73ff-0310-b7d9-9358b9ac24b2

diff --git a/src/include/switch_xml.h b/src/include/switch_xml.h
index 30ba3bf374c4aad3ec1c95a1f2c5966831d04a81..a63e3c8e68a8c627129ae297ced77267032082de 100644 (file)
--- a/src/include/switch_xml.h
+++ b/src/include/switch_xml.h
@@ -265,7 +265,7 @@ SWITCH_DECLARE(switch_xml_t) switch_xml_set_attr(switch_xml_t xml, const char *n
 ///\param value the attribute value
 ///\return an xml node or NULL
 #define switch_xml_set_attr_d(xml, name, value) \
-    switch_xml_set_attr(switch_xml_set_flag(xml, SWITCH_XML_DUP), strdup(name), strdup(value))
+    switch_xml_set_attr(switch_xml_set_flag(xml, SWITCH_XML_DUP), strdup(name), strdup(switch_str_nil(value)))
 
 ///\brief sets a flag for the given tag and returns the tag
 ///\param xml the xml node