OSI/FTAM Programming Reference Manual

FTM Procedures
HP NonStop OSI/FTAM Programming Reference Manual—528611-001
4-51
FTM_DATA_REQ_
values for the data element types (ZAPS-DDL-DATA-ELEMENT-HDR.ZTYPE) are
listed below with descriptions of their structures:
•
ZFTM-VAL-DE-FADU (ZFTM-DDL-DE-FADU)
Only FTAM-2 document types in the FA access context use this data element.
It is used to represent a structuring data element, which can be either a node
descriptor data element, an enter subtree data element, or an exit subtree data
element. Node descriptor data element is the only type used.
•
ZFTM-VAL-DE-TEXT
FTAM-1 and FTAM-2 document types use this data element. Each element will
be encoded as a string of characters. The character string provided will be
encoded as one of the following universal-classes:
depending on the contents-type activity attribute. To ensure interoperability,
NIST FTAM Phase 2 agreements recommend that elements be no more than
134 characters long.
The abstract syntax for this data element is { ISO standard 8571
abstract-syntax (2) unstructured-text (3) }.
For FTAM-1 and FTAM-2 document types, the interpretation of line breaks
within the text of the file depends on the character set used and on the
string-significance parameter, which is contained in the contents-type
attribute on the F-OPEN confirm. If the character set contains format effectors,
then end-of-line should be designated with those format effectors (carriage
return and line feed).
The string-significance parameter can be a value of variable, fixed, or
not-significant.
•
ZFTM-VAL-DE-BINARY
FTAM-3 document types use this data element. Each element consists of a
string of octets. To ensure interoperability, HP recommends that elements be
no more than 512 octets long.
The abstract syntax for this data element is { ISO standard 8571
abstract-syntax (2) unstructured-binary (4) }.
PrintableString (ASN.1 Universal-Class 19)
TeletexString (ASN.1 Universal-Class 20)
VideotexString (ASN.1 Universal-Class 21)
IA5String (ASN.1 Universal-Class 22)
GraphicString (ASN.1 Universal-Class 25)
VisibleString (ASN.1 Universal-Class 26)
GeneralString (ASN.1 Universal-Class 27)