Re: [libvirt] [PATCH 01/10] util: introduce virXMLPropStringLimit

The virXMLPropStringLimit is an equivalent of virXPathStringLimit which should be preferred if you already have a XML dom node or if you need to parse more than one property. Signed-off-by: Pavel Hrdina <phrdina(a)redhat.com&gt; --- src/libvirt_private.syms | 1 + src/util/virxml.c | 52 +++++++++++++++++++++++++++++++++++++++--------- src/util/virxml.h | 3 +++ 3 files changed, 47 insertions(+), 9 deletions(-)

@@ -506,6 +516,30 @@ virXMLPropString(xmlNodePtr node, return (char *)xmlGetProp(node, BAD_CAST name); } + +/** + * virXMLPropStringLimit: + * @node: XML dom node pointer + * @name: Name of the property (attribute) to get + * @maxlen: maximum length permitted string

+ * + * Wrapper for virXMLPropString, which validates the length of the returned + * string. + * + * Returns a new string which must be deallocated by the caller or NULL if + * the evaluation failed. + */ +char * +virXMLPropStringLimit(xmlNodePtr node, + const char *name, + size_t maxlen) +{ + char *tmp = (char *)xmlGetProp(node, BAD_CAST name); + + return virXMLStringLimitInternal(tmp, maxlen, name); +} + + /** * virXPathBoolean: * @xpath: the XPath string to evaluate