Function spatialite_sys::gaiaXmlBlobGetFileId

pub unsafe extern "C" fn gaiaXmlBlobGetFileId(
    blob: *const c_uchar, 
    size: c_int
) -> *mut c_char

Return the FileIdentifier from a valid XmlBLOB buffer

\param blob pointer to the XmlBLOB buffer. \param size XmlBLOB's size (in bytes).

\return the FileIdentifier for any valid XmlBLOB containing a FileIdentifier; NULL in any other case.

\sa gaiaIsIsoMetadataXmlBlob, gaiaXmlBlobSetFileId, gaiaXmlBlobAddFileId

\note the returned FileIdentifier corresponds to dynamically allocated memory: so you are responsible to free() it before or after.