1 files changed, 45 insertions, 2 deletions

diff --git a/common/eurephia_xml.c b/common/eurephia_xml.c
index 91eacf4..dec397f 100644
--- a/common/eurephia_xml.c
+++ b/common/eurephia_xml.c
@@ -43,6 +43,27 @@
 
 
 /**
+ * String replace in a xmlChar based string
+ *
+ * @param str xmlChar input string
+ * @param s   search for this character
+ * @param r   replace the character with this one
+ */
+void xmlReplaceChars(xmlChar *str, char s, char r) {
+        if( str != NULL ) {
+                xmlChar *ptr = str;
+
+                while( *ptr != '\0' ) {
+                        if( *ptr == s ) {
+                                *ptr = r;
+                        }
+                        ptr++;
+                }
+        }
+}
+
+
+/**
  * Retrieves a given XML node attribute/property
  *
  * @param attr xmlAttr pointer from an xmlNode pointer.
@@ -81,7 +102,7 @@ xmlNode *xmlFindNode(xmlNode *node, const char *key) {
         xmlNode *nptr = NULL;
         xmlChar *x_key = NULL;
 
-        if( node->children == NULL ) {
+        if( (node == NULL) || (node->children == NULL) ) {
                 return NULL;
         }
 
@@ -236,6 +257,25 @@ xmlNode *eurephiaXML_getRoot(eurephiaCTX *ctx, xmlDoc *doc, const char *nodeset,
 
 
 /**
+ * Checks if the given XML document is an eurephia ResultMsg XML document
+ *
+ * @param ctx    eurephiaCTX
+ * @param resxml XML document to validate
+ *
+ * @return Returns 1 if the input XML document is a ResultMsg document.  Otherwise 0
+ */
+unsigned int eurephiaXML_IsResultMsg(eurephiaCTX *ctx, xmlDoc *resxml) {
+        xmlNode *node = NULL;
+
+        assert( ctx != NULL );
+        if( resxml == NULL ) {
+                return 0;
+        }
+        node = eurephiaXML_getRoot(ctx, resxml, "Result", 1);
+        return (node != NULL ? 1 : 0);
+}
+
+/**
  * Parses an eurephia Result XML document
  *
  * @param ctx    eurephiaCTX
@@ -253,7 +293,10 @@ eurephiaRESULT *eurephiaXML_ParseResultMsg(eurephiaCTX *ctx, xmlDoc *resxml) {
         xmlNode *res_n = NULL;
         char *str = NULL;
 
-        assert( (ctx != NULL) && (resxml != NULL) );
+        assert( ctx != NULL );
+        if( resxml == NULL ) {
+                return NULL;
+        }
 
         res_n = eurephiaXML_getRoot(ctx, resxml, "Result", 1);
         if( res_n == NULL) {