1 Possible compatibility problems with earlier versions marked with '*'.
3 * Added const modifier to buffer parameter for some ODR/BER encoding
4 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
5 completeWAIS, odr_dumpBER.
7 Fixed bug in client.c which caused a crash when a scanResponse didn't
8 contain positionOfTerm.
10 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
11 * will cause an error in a client if a non-YAZ target sends both a
12 * list of Scan entries and non-surrogate diagnostics.
14 Retrieval module enhancements. Tag sets may be typed in the reference
15 to it. From the .abs-file the "tagset" directive takes a third optional
16 integer type for the tag set referenced. From a .tag-file the "include"
17 directive takes a third optional type as well. The old "type" directive
18 in the tag set itself is still recognized but acts as the default type
21 Backend interface change. Individual Scan terms returned from bend_scan
22 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
25 Retrieval module enhancements. Multiple tag sets and attribute sets may
26 be specified in abstract syntax specs. Revised the error/warning for
27 logging messages reported by the retrieval module when reading the
30 Object Identifier system (oid_..) changed. The API is backwards
31 compatible but the oid-routines now allocates new OID's when needed.
32 Raw OID's may be specified in oid_getvalbyname.
34 YAZ now uses GNU configure to generate Makefile(s).
36 * Minor changes in some of the member names of DeleteResultSetRequest and
37 DeleteResultSetResponse. See include/proto.h.
39 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
40 and added member 'languages' in TargetInfo (which was missing).
42 Changed the way attribute sets are handled in the retrieval
43 module. These are now cached, just like the abstract syntaxes
46 Changed YAZ so that it links with compiled ASN.1.
48 Added Explain-schema definitions and mapping routines. The following
49 Explain categories have been implemented: AttributeDetails,
50 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
52 Fixed minor bug in Windows version of Server Library.
54 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
56 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
58 Added EXTERNAL: UNIverse Resource Report (non-standard).
60 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
61 ENUMERATED and SET OF.
63 * Added 'const' to some of the char pointer arguments for the
64 functions, data1_read_node, data1_getelementbytagname,
65 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
68 Fixed bug in data1_insert_taggeddata - the last_child member of
69 parent wasn't initialised.
71 * Changed data1_read_record and data1_read_node so that the supplied
72 "SGML"-buffer is read-only. In particular the resulting data1 - tree
73 doesn't refer to any parts of the "SGML"-buffer.
75 Fixed bug in server library (Windows version of statserv_remove).
77 * Changed code so that it compiles as C++. The type definition
78 of Odr_fun which is a member of Odr_arm was changed. The result is,
79 that an explicit typecast is needed for the fun pointer when
80 using Odr_arm - as in:
81 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
83 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
85 Implemented the new structured date and time definition as approved
86 by the ZIG. Added schemaId element to the specificTag in Espec-1
87 (also approved at the last ZIG). Thanks to RVDM.
89 Added some Object identifiers (RVDM).
91 Changed the Update Extended Service (RVDM).
93 Added command "refid" to client which specifies referenceId for
94 the following requests.
96 Implemented extended service handling for server. See ztest.c
97 for an example as well as backend.h. New handlers are registerd
100 * Changed interface for sort in server.
102 Added new members to statserv_options_block. It allows a server
103 to read options from another source than just the command line. Thanks
104 to Charles Woodfield.
106 * Changed definition of Z_Triple in file prt-grs.h - member boolean
107 renamed to zboolean. Some C++ compilers complained about the name.
109 Minor changes to gils.abs. Added index 's' (sort) on title
110 and date/time-last-modified.
114 Fixed bug in server library regarding inetd mode (-i). This bug
115 was introduced by release 1.4.
119 Added sort facility in client and backend server interface.
121 Fixed problem with dependencies in Makefile(s).
123 Fixed bugs for encoders/decoders of extended services and
126 Implemented sub-tree feature for schemas. Sub-trees are
127 referenced in *.abs-files. See explain.abs for an example
128 of the use of this feature.
130 Modified bib1.att; local attributes for ANY didn't include
131 ANY itself (only affects use of the retrieval module).
133 Fixed bug in plain SGML reader in function data1_read_node:
134 tags with prefix "var" was incorrectly interpreted as variants.
136 Added feature "sub-schemas" to enable references to - and definitions
137 of - group of elements.
139 * Removed member parent from type data1_element (in data1.h).
141 Implemented function odr_nullval() that returns the value of
144 * Removed member num_children from data1_node (in data1.h).
146 Made NT service interface part of the server library. The
147 function statserv_main uses the NT service when required and
148 calls the statserv_start / statserv_close routines.
150 Routine zget_SearchRequest and zget_PresentRequest fills
151 resultSetName/Id member with "default" instead of "Default".
153 Fixed memory leak in server. Request queue member wasn't freed.
155 Fixed nmem_exit so that memory is freed.
159 Revised the CCL parser utility to be thread safe.
161 Added function, oid_ent_to_oid, to replace the function
162 oid_getoidbyent, which is not thread safe.
164 * Added nmem_init and nmem_exit to initialize and release
165 NMEM resources. Function nmem_init should be called once in the
166 initial thread before NMEM/ODR is used. statserv.c and client.c
167 have been changed accordingly. The change was necessary to make
168 NMEM thread safe. The NMEM memory pool is shared amongst threads
169 in a process. Unix-based applications will still work fine without
172 Added NT Services interface for the the Z39.50 (statserv) Server.
173 Refer to the ztest.c source on the usage.
175 Windows 95/NT port using MSVC5.0. Project files are included in the
178 * Defined new 'global' handle for the retrieval (data1) system. The
179 new handled, data1_handle, describes the state of the data1 system.
180 This handle is passed as first argument to virtually all
181 data1 related routines. The functions data1_create and data1_destroy
182 creates and destroys a data1 handle respectively.
184 Added ODR encode stream member to all backend request structures
185 init, search, scan etc. This stream should be used to allocate all
186 memory used for the response when thread safe operation is needed.
188 Changed the comstack utility, cs_addstr, to be thread safe. The
189 returned hostname string returned by the function is now part the
192 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
193 function. The cs_straddr takes a COMSTACK handle as argument, so this
194 function must be used after cs_create and before bind/connect.
195 This function is thread safe.
197 Moved test server to 'ztest' directory - generic server code still
198 in 'server' directory.
200 Made prefix query (pquery.c) utility thread safe.
202 Added new function modifier YAZ_EXPORT to 'export' public DLL
203 functions when using windows (see include/yconfig.h).
205 Added definitions to the OID database (util/oid.c) (RVDM).
207 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
209 Added call to ccl_rpn_delete in client program.
211 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
212 release of RPN structure.
214 Added support for C++, headers uses extern "C" for public definitions.
215 With input from RVDM.
217 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
218 Thanks to Ronald van der Meer (RVDM).
220 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
222 Added support for private extensions to the OID database
223 (oid_setprivateoids()). Thanks to RVDM.
225 Added optional, physical ANY (key replication)
227 Fixed null-reference problem in GRS-1 output filter.
229 Proximity operator added to Prefix Query Format (PQF).
231 In test client command "base" accepts multiple databases.
233 Fixed bug in cs_close stack that caused trouble with WINSOCK.
237 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
239 Smallish bug-fixes in the new encoders/decoders (explain).
241 Bug fixed in DeleteRequest.
243 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
245 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
247 Added SOIF syntax (using private OID for now) to retrieval module and client.
249 Added Update extended service.
251 Added SearchResult-1 additional info structure.
253 Added optional CCL (ISO8777) interpreter as separate module. Available
256 --- 1.2 1996/6/10 (1st anniversary release)
258 Added Summary record syntax. Lightly tested.
260 Added OPAC record syntax. Untested.
262 Added ResourceReport service encoders/decoders. Untested.
264 Fixed bug in z_Unit - wrong tagging on unitSystem.
266 Fixed bug in the DiagRecs decoder.
268 Added options for max PDU size and session timeout to frontend-server.
270 Added documentation of query-language parsers and other supporting utilities.
272 [frontend-server] Added Attribute set to the bend_scanrequest API.
274 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
275 surrogate diagnostics were generated.
277 [retrieval] Allow multiple local values for attribute.
279 [retrieval] Allow multiple attributes per element in .abs files. index type.
281 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
285 Minor changes, mostly specific to Zebra's requirements (retrieval)
289 Repaired bug in frontend server when running multiple listening
290 endpoints in dynamic mode.
292 z_External() now won't break if a known, ASN.1 value comes encapsulated
293 in an octet-string. The value will pass through unmodified in an Odr_oct.
295 Added a bit of code to the demo client to decode & display
296 ASN.1-structured records represented in the octet-aligned branch of
297 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
299 Added z_ext_getentbyref() to the ASN module. Doc updated.
301 * Completed the SCAN definition in the ASN module. This may break SCAN
302 code based on older YAZ-versions at compile-time. The fix is easy -
305 * Added 'displayTerm' and OtherInformation to the TermInfo structure
306 under the SCAN definition. Remember to initialize this, server-people.
308 Comstack should now support the WAIS protocol in TCP/IP mode. Note
309 that this does not extend to ODR and ASN.
311 Comstack allows insertion of established socket (primarily for
312 inetd-operation of servers). Doc updated.
314 Front-end server can now start from the inetd in TCP mode. Doc
321 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
322 the rank and record number.
324 Adjustments to the frontend server.
326 Fixed diagnostic BER dumper. It ignored the file argument.
330 Various changes to retrieval module.
332 Changed the union discriminators of the protocol files from enums to
333 ints paired with #defines.
335 *Changed oident.class to oident.oclass to avoid a reserved word in C++
338 *Changed operator in the RPN structure to 'roperator', again to avoid a
341 Fixed problems in Explain decoders/encoders.
345 Memory bug in log module fixed.
349 Occasional malloc() of 0 bytes fixed in d1_espec.c.
351 Bug in Explain DatabaseInfo module fixed.
353 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
357 The shift to v1.0 signals that we now consider the *core* functionality
358 of YAZ reasonably stable (the core being more or less equivalent to
359 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
360 tested (Explain not at all - though that will happen soonish).
362 Minor changes to code to support Windows port.
364 Various minor changes after we're getting to use GRS-1 & co. more.
366 Added Espec-1 format.
368 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
369 of the protocol and it cannot be selected when encoding (maps into 'string'
370 when decoding). Needed to talk to some servers.
372 Demo client can request simple element set names.
374 Added Diagnostic Format encoders/decoders.
376 Added simple Close handling to frontend server (no hooks for resource
377 reporting yet), and demonstration client.
379 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
383 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
384 handled incorrectly when records were requested in the searchResponse. This
385 will only affect you if you use the frontend-server.
387 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
388 Test-client will ask for and print GRS1. Ztest will return dummy records
391 Added Explain encoders/decoders to the service-level API. Untested.
393 Added Extended Services: Item Order encoders and decoders to the Service-
394 level API. Untested. We could use a recent copy of the pertinent bits
395 of the ILL protocol to add those bits.
397 Added diagnostic format 1 encoders/decoders to the service-level API.
400 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
401 odr_cons.c, which causes a more correct output.
403 Fixed handling of searchRequest in frontend server. NextResultSetPosition
404 was always set to 0 when no records were requested in the searchRequest.
406 * Added better external-handling. This shouldn't harm old code that
407 *encodes* externals. It can break code that looks for a
408 'single-ASN1-type' representation, since those types that are known
409 are now decoded immediately. Look at the SUTRS sample code in
410 seshigh.c and client.c. Documentation updated.
412 Handling of structured records in bend_fetchresponse. Length -1 marks
413 structured record, type is deduced from format field.
416 Fairly quick maintenance release to add SUTRS support.
418 Fixed handling of SUTRS records in the demonstration client.
420 * Added format field to the bend_fetchrequest and bend_fetchresponce
421 structures of the backend API (frontend server). When the record is
422 returned, the value of the format field is mapped to an OID. The
423 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
424 of the record. The special value VAL_NONE in the bend_request means
425 that no specific format was requested by the client. Documentation
426 updated accordingly. Test server (ztest) will return a fixed dummy
427 SUTRS record if your client requests SUTRS.
429 Documentation updated accordingly.
431 You can now set external libraries and RANLIB support in the top-level
435 First public release.