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Consolidate virXPathNodeSet()

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virXPathNodeSet() could return -1 when doing an evaluation failure
due to xmlXPathEval() from libxml2 behaviour.
* src/util/xml.c: make sure we always return 0 unless the returned
  XPath type is of the wrong type (meaning the query passed didn't
  evaluate to a node set and code must be fixed)
This commit is contained in:
Daniel Veillard 2009-10-22 10:32:15 +02:00
parent 08bed02515
commit 2f4682a9f8
1 changed files with 7 additions and 2 deletions
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9
src/util/xml.c
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@ -490,11 +490,16 @@ virXPathNodeSet(virConnectPtr conn,
relnode = ctxt->node;
obj = xmlXPathEval(BAD_CAST xpath, ctxt);
ctxt->node = relnode;
if ((obj == NULL) || (obj->type != XPATH_NODESET) ||
(obj->nodesetval == NULL) || (obj->nodesetval->nodeNr < 0)) {
if (obj == NULL)
return(0);
if (obj->type != XPATH_NODESET) {
xmlXPathFreeObject(obj);
return (-1);
}
if ((obj->nodesetval == NULL) || (obj->nodesetval->nodeNr < 0)) {
xmlXPathFreeObject(obj);
return (0);
}
ret = obj->nodesetval->nodeNr;
if (list != NULL && ret) {