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util: xml: Introduce virXMLPropStringRequired
Similarly to virXMLPropString it extracts a string but reports an error similar to the newer virXMLProp helpers if the attribute is not present. Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
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@ -3683,6 +3683,7 @@ virXMLPropEnum;
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virXMLPropEnumDefault;
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virXMLPropInt;
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virXMLPropString;
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virXMLPropStringRequired;
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virXMLPropTristateBool;
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virXMLPropTristateBoolAllowDefault;
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virXMLPropTristateSwitch;
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@ -455,6 +455,33 @@ virXMLPropString(xmlNodePtr node,
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}
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/**
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* virXMLPropStringRequired:
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* @node: XML dom node pointer
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* @name: Name of the property (attribute) to get
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*
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* Convenience function to return copy of an mandatoryu attribute value of an
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* XML node.
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*
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* Returns the property (attribute) value as string or NULL and if the attribute
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* is not present (libvirt error reported).
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* The caller is responsible for freeing the returned buffer.
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*/
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char *
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virXMLPropStringRequired(xmlNodePtr node,
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const char *name)
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{
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char *ret = virXMLPropString(node, name);
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if (!(*ret))
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virReportError(VIR_ERR_XML_ERROR,
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_("Missing required attribute '%s' in element '%s'"),
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name, node->name);
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return ret;
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}
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/**
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* virXMLNodeContentString:
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* @node: XML dom node pointer
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@ -97,6 +97,10 @@ char *
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virXMLPropString(xmlNodePtr node,
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const char *name);
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char *
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virXMLPropStringRequired(xmlNodePtr node,
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const char *name);
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char *
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virXMLNodeContentString(xmlNodePtr node);
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int
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