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tree: Document behavior if xmlSetTreeDoc fails

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This commit is contained in:
Nick Wellnhofer 2024-03-28 15:09:46 +01:00
parent f1e9c7bdf1
commit 2a713a8091
1 changed files with 11 additions and 0 deletions
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tree.c
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@ -3081,6 +3081,13 @@ xmlInsertNode(xmlDocPtr doc, xmlNodePtr cur, xmlNodePtr parent,
if (cur->doc != doc) {
if (xmlSetTreeDoc(cur, doc) < 0) {
/*
* We shouldn't make any modifications to the inserted
* tree if a memory allocation fails, but that's hard to
* implement. The tree has been moved to the target
* document now but some contents are corrupted.
* Unlinking is the best we can do.
*/
cur->parent = NULL;
cur->prev = NULL;
cur->next = NULL;
@ -3333,6 +3340,10 @@ xmlAddChildList(xmlNodePtr parent, xmlNodePtr cur) {
* document, document fragments, elements and attributes
* should be used as parent nodes.
*
* When moving a node between documents and a memory allocation
* fails, the node's content will be corrupted and it will be
* unlinked. In this case, the node must be freed manually.
*
* Moving DTDs between documents isn't supported.
*
* Returns @elem or a sibling if @elem was merged. Returns NULL