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Filename: BTRUNIX.DOC
Product: NetWare Btrieve v6.0 Requester for UnixWare
Date: June 1993
Forum: NetWire
This Readme document pertains to the NetWare Btrieve v6.0 Requester
for UnixWare, which is a component of the NetWare Btrieve v6.1
Upgrade. The Btrieve Requester for UnixWare provides UnixWare
clients with access to Btrieve data residing on a NetWare Btrieve
server. This document describes the Btrieve Requester components
and the NetWare and UnixWare environments.
================================================================================
Disclaimer
==========
Novell, Inc. makes no representations or warranties with respect to any
NetWare software, and specifically disclaims any express or implied
warranties of merchantability, title, or fitness for a particular
purpose.
Distribution of any NetWare software is forbidden without the express
written consent of Novell, Inc. Further, Novell reserves the right to
discontinue distribution of any NetWare software.
Novell is not responsible for lost profits or revenue, loss of use of
the software, loss of data, costs of re-creating lost data, the cost of
any substitute equipment or program, or claims by any party other than
you. Novell strongly recommends a backup be made before any software
is installed. Technical support for this software may be provided at
the discretion of Novell.
================================================================================
Contents
========
Product Overview
C Interface Object File
Btrieve Interface Library
Communications Interface Library
Requester Requirements
Using the Requester
Archive and Shared-Object Libraries
Requester Linking
Requester Configuration Options
Requester Connection and Termination
File Access
Btrieve Operations
Associated Documents
Customer Support
================================================================================
Product Overview
================
The NetWare Btrieve Requester for UnixWare allows a Btrieve client
application in a UnixWare environment to access Btrieve data on a
NetWare Btrieve server. The Btrieve Requester uses the SPX Transport
Layer Interface (TLI) and can establish or disconnect a connection
with the Btrieve communications program BSPXCOM. BSPXCOM handles
incoming requests to the Btrieve NLM from a remote source.
The Btrieve Requester for UnixWare consists of a C interface object
file, a set of archive libraries, and a set of shared-object libraries.
Each set includes a library for the Btrieve Interface and a library
for the Communications Interface.
The following figure illustrates how UnixWare clients can access
Btrieve data on a NetWare Btrieve server.
+-----------------+
| Application |
+-----------------+
| ^
v |
+----------------------------------+
+-----------+ | C Interface/API |
| BSPXCOM | <---+ | (UNXCBTRV.O) |
+-----------+ | +----------------------------------+
| ^ | | ^
v | | v |
+-----------+ | +----------------------------------+
| Btrieve | | | Btrieve Interface Library |
| NLM | | | (LIBBTRV.A or LIBBTRV.SO) |
+-----------+ | +----------------------------------+
| ^ | | ^
v | | v |
+-----------+ | +----------------------------------+
| NetWare | | | Communications Interface Library |
+-----------+ | | (LIBCOMM.A or LIBCOMM.SO) |
| +----------------------------------+
| | ^
NetWare Server | v |
| +----------------------------------+
| | Transport Library |
| | Interface (TLI) |
| +----------------------------------+
| | ^
| v |
| +-----------------+
+---> | SPX |
+-----------------+
UnixWare Client
Application Server (AS) or
Personal Edition (PE)
The following sections describe the Btrieve Requester for UnixWare
components.
C Interface Object File
-----------------------
The C interface object file (UNXCBTRV.O) links a C application
and maps a C interface to the Btrieve Requester interface.
Btrieve Interface Library
-------------------------
The Btrieve Interface Library (LIBBTRV.A or LIBBTRV.SO) processes
Btrieve requests, sending requests to and receiving responses from
the Communications Interface Library.
- LIBBTRV.A Archive Btrieve Interface Library
- LIBBTRV.SO Shared-object Btrieve Interface Library
Communications Interface Library
--------------------------------
The Communications Interface Library (LIBCOMM.A or LIBCOMM.SO) routes
Btrieve requests to the specified server where the Btrieve NLM
is located. It also receives responses from the NetWare server
and returns them to the Btrieve Interface Library.
- LIBCOMM.A Archive Communications Interface Library
- LIBCOMM.SO Shared-object Communications Interface Library
================================================================================
Requester Requirements
======================
The NetWare Btrieve Requester for UnixWare requires that the following
products be used in conjunction with it to enable UnixWare client
applications to access Btrieve data on a NetWare server.
NetWare Products UnixWare Products
---------------------- ------------------------------------
NetWare v3.11 or v4.0 UnixWare Application Server (AS) or
UnixWare Personal Edition (PE)
NetWare Btrieve UnixWare Libraries:
v5.15, v6.0, or v6.1 LIBNWAPI.SO Shared-object NetWare
Unix Client (NUC) API
Library
LIBNSL.SO Shared-object Network
Service Library
LIBSOCKET.SO Shared-object Socket
Interface Library
LIBDL.SO Shared-object Dynamic
Link Library
================================================================================
Using the Requester
===================
The NetWare Btrieve v6.0 Requester for UnixWare is compatible with
NetWare Btrieve v5.15, v6.0, and v6.1. In the case of NetWare
Btrieve v6.1, however, the Btrieve v6.0 Requester for UnixWare
does not provide full support for Btrieve v6.1 features.
Btrieve v6.1 Features Btrieve v6.1 Features
Supported Not Supported
-------------------------------------- -------------------------------
Index Balancing Multiple Alternate Collating
Find Percentage Operation Sequences (ACSs)
Get By Percentage Operation No Currency Change
STS Data Type Get Direct/Chunk Operation
Variable-tail Allocation Tables (VATs) Update Chunk Operation
Locale-specific Alternate Collating
Sequence
This section covers the following topics:
- when to use archive and shared-object libraries
- how to link the Btrieve Requester
- how to configure the Btrieve Requester
- how to establish Btrieve Requester connections
- how to access files using the Btrieve Requester
- which Btrieve operations are affected by the Btrieve Requester
Archive and Shared-Object Libraries
-----------------------------------
You can use either the archive library set or the shared-object
library set.
- Use the archive library set (LIBBTRV.A and LIBCOMM.A) if you want
to link the libraries with your program at link time.
- Use the shared-object library set (LIBBTRV.SO and LIBCOMM.SO) if
you want the libraries to be dynamically linked with your program
at execution time.
Requester Linking
-----------------
To use the Btrieve Requester for UnixWare, complete the follwing steps:
1. At the linker command line, link the UNXCBTRV.O file with your
program.
2. Link your program with the following libraries (in the order given):
LIBBTRV.A or LIBBTRV.SO
LIBCOMM.A or LIBCOMM.SO
LIBNWAPI.SO
LIBNSL.SO
LIBSOCKET.SO
LIBDL.SO
The following example illustrates how to link the Btrieve Requester
for UnixWare:
cc -c btrget.c
cc -o btrget -L/home/mydir/univel/breq -L/home/mydir/univel/comm
unxcbtrv.o btrget.o -lbtrv -lcomm -lnwapi -lnsl -lsocket -ldl
where:
-L/home/mydir/univel/breq Indicates the location of libbtrv.a.
-L/home/mydir/univel/comm Indicates the location of libcomm.a.
btrget.c Specifies your program file.
btrget.o Specifies the object file for btrget.c.
NOTE: You can place UNXCBTRV.O in your working directory. However,
if you want to place UNXCBTRV.O in another directory, specify
the file's location.
For shared-object libraries ending with the .SO extension, you need to
set the environment variables under the Bourne shell as follows:
LD_LIBRARY_PATH=/home/mydir/univel/breq:/home/mydir/univel/comm export
LD_LIBRARY_PATH
Requester Configuration Options
-------------------------------
You do not need to set any configuration options to specify the size
of the data message buffers. The Btrieve Requester for UnixWare
dynamically expands the data message buffer to pass records between
Btrieve and the application. The Btrieve Requester for UnixWare
also dynamically expands the Server Router Table that is used for
routing the Btrieve requests to the specified server.
Requester Connection and Termination
------------------------------------
A UnixWare client can connect to a maximum of 50 servers. The Btrieve
Requester for UnixWare automatically terminates all the connections
that are left open when an application exits. However, the files
that are left open when an application exits remain open until a
Btrieve Stop operation is issued.
File Access
-----------
There are no drive mappings in UnixWare. You must log in to the
server and initiate authentication with the server in order to
access files or directories on it. You can use the NetWare Access
Utility (NAU) to log in to the server.
You cannot use relative paths or simple filenames. You must use the
full pathname because of the limitation imposed by the NetWare C
Interface.
Btrieve Operations
------------------
The Btrieve Requester for UnixWare affects the following Btrieve
operations:
- Get Directory: This operation can return only the current
directory. It ignores the logical disk drive specified in the key
number parameter.
- Set Directory: For this operation, you must specify the path
according to the UnixWare pathname specification.
================================================================================
Associated Documents
====================
For detailed information on NetWare Btrieve, refer to the "Btrieve
Installation and Operation" manual that was included in the
documentation set for the NetWare operating system you are
currently using.
If you have purchased a Btrieve Developer's Kit or a NetWare Btrieve
Developer's Kit Supplement, refer to the "Btrieve Programmer's
Manual" that was included in the kit for information about the
Btrieve operations.
================================================================================
Customer Support
================
For information about UnixWare-specific problems when using the NetWare
Btrieve Requester for UnixWare, contact Univel Developer Support as
follows:
Fax number: (801) 568-8699 Email: devsup@univel.com
**End of BTRUNIX.DOC**