Hello! Technically UDF filesystem allows to store empty string values. LogicalVolumeIdentifier (label) according to UDF specification shall not be null, but it is possible to store empty string there. Question is, what should libblkid's udf code do if e.g. LABEL identifier is empty string? Should it set empty LABEL for libblkid? Or it should not set LABEL at all? Currently in blkid_probe_set_label() is check for len > 1, so empty string is not possible to store for LABEL. But when check fails function return non-negative value which is understood as succeeded -- even it did not store empty string. It does not looks good... Or it is expected? -- Pali Rohár pali.rohar@xxxxxxxxx
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