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util: xml: Introduce virXMLPropUUID
The helper function extracts a UUID with semantics similar to other helpers we have. Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
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@ -3688,6 +3688,7 @@ virXMLPropTristateBoolAllowDefault;
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virXMLPropTristateSwitch;
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virXMLPropUInt;
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virXMLPropULongLong;
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virXMLPropUUID;
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virXMLSaveFile;
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virXMLValidateAgainstSchema;
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virXMLValidatorFree;
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@ -33,6 +33,7 @@
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#include "virfile.h"
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#include "virstring.h"
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#include "virutil.h"
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#include "viruuid.h"
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#include "configmake.h"
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#define VIR_FROM_THIS VIR_FROM_XML
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@ -808,6 +809,50 @@ virXMLPropEnumDefault(xmlNodePtr node,
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}
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/**
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* virXMLPropUUID:
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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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* @flags: Bitwise-OR of virXMLPropFlags
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* @result: Array of VIR_UUID_BUFLEN bytes to store the raw UUID
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*
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* Convenience function to fetch an XML property as a UUID.
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*
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* Returns 1 in case of success in which case @result is set,
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* or 0 if the attribute is not present,
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* or -1 and reports an error on failure.
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*/
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int
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virXMLPropUUID(xmlNodePtr node,
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const char* name,
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virXMLPropFlags flags,
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unsigned char *result)
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{
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g_autofree char *tmp = NULL;
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unsigned char val[VIR_UUID_BUFLEN];
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if (!(tmp = virXMLPropString(node, name))) {
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if (!(flags & VIR_XML_PROP_REQUIRED))
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return 0;
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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 -1;
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}
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if (virUUIDParse(tmp, val) < 0) {
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virReportError(VIR_ERR_XML_ERROR,
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_("Invalid value for attribute '%s' in element '%s': '%s'. Expected UUID"),
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name, node->name, tmp);
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return -1;
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}
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memcpy(result, val, VIR_UUID_BUFLEN);
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return 1;
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}
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/**
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* virXMLPropEnum:
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* @node: XML dom node pointer
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@ -154,6 +154,13 @@ virXMLPropEnum(xmlNodePtr node,
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(3)
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ATTRIBUTE_NONNULL(5);
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int
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virXMLPropUUID(xmlNodePtr node,
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const char *name,
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virXMLPropFlags flags,
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unsigned char *result)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(4);
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int
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virXMLPropEnumDefault(xmlNodePtr node,
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const char* name,
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