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| Standards, Environments, and Macros | fns_references(5) |
| | fns_references - overview of FNS
References |
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Every composite name in FNS is bound
to a reference. A reference consists of a type
and a list of addresses. The reference type is used to identify the type
of object.
An address is something that can be used with some communication
mechanism to invoke operations on an object or service. Multiple addresses
are intended to identify multiple communication endpoints for a single
conceptual object or service. Each address in a reference consists of an
address type and an opaque buffer. The address type determines the format
and interpretation of the address data. Together, the address's type and
data specify how to reach the object. Many communication mechanisms are
possible; FNS does not place any restrictions
on them.
The following summarizes the reference and address types that are
currently defined. New types should be registered with the Federated Naming
Group at SunSoft.
Reference Types
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All reference types use the FN_ID_STRING identifier format unless otherwise qualified.
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onc_fn_enterprise
- Enterprise root context.
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onc_fn_organization
- A context for naming objects related to an organizational unit.
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onc_fn_hostname
- A context for naming hosts.
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onc_fn_username
- A context for naming users.
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onc_fn_user
- A context for naming objects related to a user.
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onc_fn_host
- A context for naming objects related to a computer.
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onc_fn_site
- A context for naming sites.
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onc_fn_service
- A context for naming services.
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onc_fn_nsid
- A context for naming namespace identifiers.
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onc_fn_generic
- A context for naming application-specific objects.
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onc_fn_fs
- A context for naming files, directories, and file systems.
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onc_fn_printername
- A context for naming printers.
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onc_printers
- A printer object. When implemented on top of NIS+, this could also be a context for naming printers.
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fn_link_ref
- An XFN link.
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inet_domain
- An Internet domain.
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Address Types
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All address types use the FN_ID_STRING identifier format unless otherwise qualified. The format of address
contents is determined by the corresponding address type.
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onc_fn_nisplus
- For an FNS
enterprise-level object implemented on top of NIS+. The address contains
the context type, context representation type (either normal or merged),
version number of the reference, and the NIS+
name of the object. The only intended use of this reference is that it be
passed to fn_ctx_handle_from_ref(3XFN)
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onc_fn_nis
- For an FNS enterprise-level object implemented on top of NIS. The address
contains the context type and version number of the reference, and the NIS name of the object. The only intended use of
this reference is that it be passed to fn_ctx_handle_from_ref(3XFN).
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onc_fn_files
- For an FNS enterprise-level object implemented
on top of /etc files. The address contains the context
type and version number of the reference, and the location of the object
in the /etc file system. The only intended use of this
reference is that it be passed to fn_ctx_handle_from_ref(3XFN).
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onc_fn_fs_user
- For a user's home directory. The address contains the user's name
and the name of the naming service password table where the user's home
directory is stored.
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onc_fn_fs_user_nisplus
- For a user's home directory. The address contains the user's name
and the name of the NIS+ password table
where the user's home directory is stored.
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onc_fn_fs_host
- For all file systems exported by a host. The address contains the
host's name.
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onc_fn_fs_mount
- For a single mount point. The address contains the mount options,
the name of the servers and the exported path. See mount(1M).
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onc_fn_printer_files
- For a printer's address in the files naming service.
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onc_fn_printer_nis
- For a printer's address in the NIS
naming service.
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onc_fn_printer_nisplus
- For a printer's address in the NIS+
naming service.
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fn_link_addr
- For an XFN link address. The contents is
the string form of the composite name.
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inet_domain
- For an Internet domain. The address contains the fully-qualified domain
name (for example, "Wiz.COM.")
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inet_ipaddr_string
- For an object with an Internet address. The address contains an internet IP address in dotted string form (for example, "192.144.2.3").
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x500
- For an
X.500 object. The address contains an X.500 Distinguished Name, in the syntax
specified in the X/Open DCE: Directory Services.
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osi_paddr
- For an object with an OSI presentation
address. The address contains the string encoding of an OSI Presentation Address as defined in A string encoding
of Presentation Address (RFC 1278).
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onc_printers_bsaddr
- For a printer that understands the BSD
print protocol. The address contains the machine name and printer name used
by the protocol.
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onc_printers_use
- For a printer alias. The address contains a printer name.
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onc_printers_all
- For a list of printers that are enumerated using the "all" option.
The address contains a list of printer names.
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onc_printers_location
- For a printer's location. The address format is unspecified.
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onc_printers_type
- For a printer's type. The address format is unspecified.
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onc_printers_speed
- For a printer's speed. The address format is unspecified.
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