xmlListPtr
xmlListDup(const xmlListPtr old)
{
xmlListPtr cur;
if (old == NULL)
return(NULL);
if (NULL ==(cur = xmlListCreate(NULL, old->linkCompare)))
return (NULL);
if (0 != xmlListCopy(cur, old))
return NULL;
return cur;
}
/**
* xmlListDup:
* @param old the list
*
* Duplicate the list
*
* Returns a new copy of the list or NULL in case of error
*/
XMLPUBFUNEXPORT xmlListPtr
xmlListDup(const xmlListPtr oldList)
{
xmlListPtr cur;
/* Hmmm, how to best deal with allocation issues when copying
* lists. If there is a de-allocator, should responsibility lie with
* the new list or the old list. Surely not both. I'll arbitrarily
* set it to be the old list for the time being whilst I work out
* the answer
*/
if (NULL ==(cur = xmlListCreate(NULL, oldList->linkCompare)))
return (NULL);
if (0 != xmlListCopy(cur, oldList))
return NULL;
return cur;
}
/**
* This is step 2, point 3: sort elements by Id: we process other elements as-is, but for elements we collect them in a list,
* then sort, and finally process them (process the head of the list, then pop the head, till the list becomes empty).
*/
static int
xmlSecTransformRelationshipProcessNodeList(xmlSecTransformPtr transform, xmlOutputBufferPtr buf, xmlNodePtr cur) {
xmlListPtr list;
int ret;
xmlSecAssert2(transform != NULL, -1);
xmlSecAssert2(buf != NULL, -1);
xmlSecAssert2(cur != NULL, -1);
list = xmlListCreate(NULL, (xmlListDataCompare)xmlSecTransformRelationshipCompare);
if(list == NULL) {
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
"xmlListCreate",
XMLSEC_ERRORS_R_XMLSEC_FAILED,
XMLSEC_ERRORS_NO_MESSAGE);
return(-1);
}
for(; cur; cur = cur->next) {
if(xmlStrcmp(cur->name, xmlSecNodeRelationship) == 0) {
if(xmlListInsert(list, cur) != 0) {
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
"xmlListInsert",
XMLSEC_ERRORS_R_XMLSEC_FAILED,
XMLSEC_ERRORS_NO_MESSAGE);
return(-1);
}
} else {
ret = xmlSecTransformRelationshipProcessNode(transform, buf, cur);
if(ret < 0) {
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
"xmlSecTransformRelationshipProcessNode",
XMLSEC_ERRORS_R_XMLSEC_FAILED,
XMLSEC_ERRORS_NO_MESSAGE);
xmlListDelete(list);
return(-1);
}
}
}
xmlListSort(list);
while(!xmlListEmpty(list)) {
xmlLinkPtr link = xmlListFront(list);
xmlNodePtr node = (xmlNodePtr)xmlLinkGetData(link);
ret = xmlSecTransformRelationshipProcessNode(transform, buf, node);
if(ret < 0) {
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
"xmlSecTransformRelationshipProcessNode",
XMLSEC_ERRORS_R_XMLSEC_FAILED,
XMLSEC_ERRORS_NO_MESSAGE);
xmlListDelete(list);
return(-1);
}
xmlListPopFront(list);
}
/* done */
xmlListDelete(list);
return(0);
}