1 Possible compatibility problems with earlier versions marked with '*'.
3 Added support for GNU readline in client. Thanks to Jacob Poulsen
4 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
6 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
7 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
8 IMPLEMENTATION! This change was made to the development version before
9 the ZIG decided to retract the amendment. If any users MUST be
10 compatible with the original Update definition, PLEASE CONTACT US, and
11 we will include a separate definition corresponding to the old Update
12 ES. Note that because of the change to the ASN.1 of the
13 TaskPackageRecordStructure we cannot define a single structure that
14 will support both versions.
16 * Added const modifier to buffer parameter for some ODR/BER encoding
17 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
18 completeWAIS, odr_dumpBER.
20 Fixed bug in client.c which caused a crash when a scanResponse didn't
21 contain positionOfTerm.
23 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
24 * will cause an error in a client if a non-YAZ target sends both a
25 * list of Scan entries and non-surrogate diagnostics.
27 Retrieval module enhancements. Tag sets may be typed in the reference
28 to it. From the .abs-file the "tagset" directive takes a third optional
29 integer type for the tag set referenced. From a .tag-file the "include"
30 directive takes a third optional type as well. The old "type" directive
31 in the tag set itself is still recognized but acts as the default type
34 Backend interface change. Individual Scan terms returned from bend_scan
35 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
38 Retrieval module enhancements. Multiple tag sets and attribute sets may
39 be specified in abstract syntax specs. Revised the error/warning for
40 logging messages reported by the retrieval module when reading the
43 Object Identifier system (oid_..) changed. The API is backwards
44 compatible but the oid-routines now allocates new OID's when needed.
45 Raw OID's may be specified in oid_getvalbyname.
47 YAZ now uses GNU configure to generate Makefile(s).
49 * Minor changes in some of the member names of DeleteResultSetRequest and
50 DeleteResultSetResponse. See include/proto.h.
52 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
53 and added member 'languages' in TargetInfo (which was missing).
55 Changed the way attribute sets are handled in the retrieval
56 module. These are now cached, just like the abstract syntaxes
59 Changed YAZ so that it links with compiled ASN.1.
61 Added Explain-schema definitions and mapping routines. The following
62 Explain categories have been implemented: AttributeDetails,
63 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
65 Fixed minor bug in Windows version of Server Library.
67 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
69 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
71 Added EXTERNAL: UNIverse Resource Report (non-standard).
73 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
74 ENUMERATED and SET OF.
76 * Added 'const' to some of the char pointer arguments for the
77 functions, data1_read_node, data1_getelementbytagname,
78 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
81 Fixed bug in data1_insert_taggeddata - the last_child member of
82 parent wasn't initialised.
84 * Changed data1_read_record and data1_read_node so that the supplied
85 "SGML"-buffer is read-only. In particular the resulting data1 - tree
86 doesn't refer to any parts of the "SGML"-buffer.
88 Fixed bug in server library (Windows version of statserv_remove).
90 * Changed code so that it compiles as C++. The type definition
91 of Odr_fun which is a member of Odr_arm was changed. The result is,
92 that an explicit typecast is needed for the fun pointer when
93 using Odr_arm - as in:
94 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
96 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
98 Implemented the new structured date and time definition as approved
99 by the ZIG. Added schemaId element to the specificTag in Espec-1
100 (also approved at the last ZIG). Thanks to RVDM.
102 Added some Object identifiers (RVDM).
104 Changed the Update Extended Service (RVDM).
106 Added command "refid" to client which specifies referenceId for
107 the following requests.
109 Implemented extended service handling for server. See ztest.c
110 for an example as well as backend.h. New handlers are registerd
113 * Changed interface for sort in server.
115 Added new members to statserv_options_block. It allows a server
116 to read options from another source than just the command line. Thanks
117 to Charles Woodfield.
119 * Changed definition of Z_Triple in file prt-grs.h - member boolean
120 renamed to zboolean. Some C++ compilers complained about the name.
122 Minor changes to gils.abs. Added index 's' (sort) on title
123 and date/time-last-modified.
127 Fixed bug in server library regarding inetd mode (-i). This bug
128 was introduced by release 1.4.
132 Added sort facility in client and backend server interface.
134 Fixed problem with dependencies in Makefile(s).
136 Fixed bugs for encoders/decoders of extended services and
139 Implemented sub-tree feature for schemas. Sub-trees are
140 referenced in *.abs-files. See explain.abs for an example
141 of the use of this feature.
143 Modified bib1.att; local attributes for ANY didn't include
144 ANY itself (only affects use of the retrieval module).
146 Fixed bug in plain SGML reader in function data1_read_node:
147 tags with prefix "var" was incorrectly interpreted as variants.
149 Added feature "sub-schemas" to enable references to - and definitions
150 of - group of elements.
152 * Removed member parent from type data1_element (in data1.h).
154 Implemented function odr_nullval() that returns the value of
157 * Removed member num_children from data1_node (in data1.h).
159 Made NT service interface part of the server library. The
160 function statserv_main uses the NT service when required and
161 calls the statserv_start / statserv_close routines.
163 Routine zget_SearchRequest and zget_PresentRequest fills
164 resultSetName/Id member with "default" instead of "Default".
166 Fixed memory leak in server. Request queue member wasn't freed.
168 Fixed nmem_exit so that memory is freed.
172 Revised the CCL parser utility to be thread safe.
174 Added function, oid_ent_to_oid, to replace the function
175 oid_getoidbyent, which is not thread safe.
177 * Added nmem_init and nmem_exit to initialize and release
178 NMEM resources. Function nmem_init should be called once in the
179 initial thread before NMEM/ODR is used. statserv.c and client.c
180 have been changed accordingly. The change was necessary to make
181 NMEM thread safe. The NMEM memory pool is shared amongst threads
182 in a process. Unix-based applications will still work fine without
185 Added NT Services interface for the the Z39.50 (statserv) Server.
186 Refer to the ztest.c source on the usage.
188 Windows 95/NT port using MSVC5.0. Project files are included in the
191 * Defined new 'global' handle for the retrieval (data1) system. The
192 new handled, data1_handle, describes the state of the data1 system.
193 This handle is passed as first argument to virtually all
194 data1 related routines. The functions data1_create and data1_destroy
195 creates and destroys a data1 handle respectively.
197 Added ODR encode stream member to all backend request structures
198 init, search, scan etc. This stream should be used to allocate all
199 memory used for the response when thread safe operation is needed.
201 Changed the comstack utility, cs_addstr, to be thread safe. The
202 returned hostname string returned by the function is now part the
205 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
206 function. The cs_straddr takes a COMSTACK handle as argument, so this
207 function must be used after cs_create and before bind/connect.
208 This function is thread safe.
210 Moved test server to 'ztest' directory - generic server code still
211 in 'server' directory.
213 Made prefix query (pquery.c) utility thread safe.
215 Added new function modifier YAZ_EXPORT to 'export' public DLL
216 functions when using windows (see include/yconfig.h).
218 Added definitions to the OID database (util/oid.c) (RVDM).
220 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
222 Added call to ccl_rpn_delete in client program.
224 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
225 release of RPN structure.
227 Added support for C++, headers uses extern "C" for public definitions.
228 With input from RVDM.
230 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
231 Thanks to Ronald van der Meer (RVDM).
233 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
235 Added support for private extensions to the OID database
236 (oid_setprivateoids()). Thanks to RVDM.
238 Added optional, physical ANY (key replication)
240 Fixed null-reference problem in GRS-1 output filter.
242 Proximity operator added to Prefix Query Format (PQF).
244 In test client command "base" accepts multiple databases.
246 Fixed bug in cs_close stack that caused trouble with WINSOCK.
250 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
252 Smallish bug-fixes in the new encoders/decoders (explain).
254 Bug fixed in DeleteRequest.
256 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
258 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
260 Added SOIF syntax (using private OID for now) to retrieval module and client.
262 Added Update extended service.
264 Added SearchResult-1 additional info structure.
266 Added optional CCL (ISO8777) interpreter as separate module. Available
269 --- 1.2 1996/6/10 (1st anniversary release)
271 Added Summary record syntax. Lightly tested.
273 Added OPAC record syntax. Untested.
275 Added ResourceReport service encoders/decoders. Untested.
277 Fixed bug in z_Unit - wrong tagging on unitSystem.
279 Fixed bug in the DiagRecs decoder.
281 Added options for max PDU size and session timeout to frontend-server.
283 Added documentation of query-language parsers and other supporting utilities.
285 [frontend-server] Added Attribute set to the bend_scanrequest API.
287 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
288 surrogate diagnostics were generated.
290 [retrieval] Allow multiple local values for attribute.
292 [retrieval] Allow multiple attributes per element in .abs files. index type.
294 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
298 Minor changes, mostly specific to Zebra's requirements (retrieval)
302 Repaired bug in frontend server when running multiple listening
303 endpoints in dynamic mode.
305 z_External() now won't break if a known, ASN.1 value comes encapsulated
306 in an octet-string. The value will pass through unmodified in an Odr_oct.
308 Added a bit of code to the demo client to decode & display
309 ASN.1-structured records represented in the octet-aligned branch of
310 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
312 Added z_ext_getentbyref() to the ASN module. Doc updated.
314 * Completed the SCAN definition in the ASN module. This may break SCAN
315 code based on older YAZ-versions at compile-time. The fix is easy -
318 * Added 'displayTerm' and OtherInformation to the TermInfo structure
319 under the SCAN definition. Remember to initialize this, server-people.
321 Comstack should now support the WAIS protocol in TCP/IP mode. Note
322 that this does not extend to ODR and ASN.
324 Comstack allows insertion of established socket (primarily for
325 inetd-operation of servers). Doc updated.
327 Front-end server can now start from the inetd in TCP mode. Doc
334 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
335 the rank and record number.
337 Adjustments to the frontend server.
339 Fixed diagnostic BER dumper. It ignored the file argument.
343 Various changes to retrieval module.
345 Changed the union discriminators of the protocol files from enums to
346 ints paired with #defines.
348 *Changed oident.class to oident.oclass to avoid a reserved word in C++
351 *Changed operator in the RPN structure to 'roperator', again to avoid a
354 Fixed problems in Explain decoders/encoders.
358 Memory bug in log module fixed.
362 Occasional malloc() of 0 bytes fixed in d1_espec.c.
364 Bug in Explain DatabaseInfo module fixed.
366 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
370 The shift to v1.0 signals that we now consider the *core* functionality
371 of YAZ reasonably stable (the core being more or less equivalent to
372 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
373 tested (Explain not at all - though that will happen soonish).
375 Minor changes to code to support Windows port.
377 Various minor changes after we're getting to use GRS-1 & co. more.
379 Added Espec-1 format.
381 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
382 of the protocol and it cannot be selected when encoding (maps into 'string'
383 when decoding). Needed to talk to some servers.
385 Demo client can request simple element set names.
387 Added Diagnostic Format encoders/decoders.
389 Added simple Close handling to frontend server (no hooks for resource
390 reporting yet), and demonstration client.
392 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
396 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
397 handled incorrectly when records were requested in the searchResponse. This
398 will only affect you if you use the frontend-server.
400 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
401 Test-client will ask for and print GRS1. Ztest will return dummy records
404 Added Explain encoders/decoders to the service-level API. Untested.
406 Added Extended Services: Item Order encoders and decoders to the Service-
407 level API. Untested. We could use a recent copy of the pertinent bits
408 of the ILL protocol to add those bits.
410 Added diagnostic format 1 encoders/decoders to the service-level API.
413 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
414 odr_cons.c, which causes a more correct output.
416 Fixed handling of searchRequest in frontend server. NextResultSetPosition
417 was always set to 0 when no records were requested in the searchRequest.
419 * Added better external-handling. This shouldn't harm old code that
420 *encodes* externals. It can break code that looks for a
421 'single-ASN1-type' representation, since those types that are known
422 are now decoded immediately. Look at the SUTRS sample code in
423 seshigh.c and client.c. Documentation updated.
425 Handling of structured records in bend_fetchresponse. Length -1 marks
426 structured record, type is deduced from format field.
429 Fairly quick maintenance release to add SUTRS support.
431 Fixed handling of SUTRS records in the demonstration client.
433 * Added format field to the bend_fetchrequest and bend_fetchresponce
434 structures of the backend API (frontend server). When the record is
435 returned, the value of the format field is mapped to an OID. The
436 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
437 of the record. The special value VAL_NONE in the bend_request means
438 that no specific format was requested by the client. Documentation
439 updated accordingly. Test server (ztest) will return a fixed dummy
440 SUTRS record if your client requests SUTRS.
442 Documentation updated accordingly.
444 You can now set external libraries and RANLIB support in the top-level
448 First public release.