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