1 Possible compatibility problems with earlier versions marked with '*'.
3 Added support for GNU readline in client. Thanks to Jacob Poulsen
4 <ja7@groucho.dbc.bib.dk>. GNU configure attempts to detect if readline
7 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
8 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
9 IMPLEMENTATION! This change was made to the development version before
10 the ZIG decided to retract the amendment. If any users MUST be
11 compatible with the original Update definition, PLEASE CONTACT US, and
12 we will include a separate definition corresponding to the old Update
13 ES. Note that because of the change to the ASN.1 of the
14 TaskPackageRecordStructure we cannot define a single structure that
15 will support both versions.
17 * Added const modifier to buffer parameter for some ODR/BER encoding
18 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
19 completeWAIS, odr_dumpBER.
21 Fixed bug in client.c which caused a crash when a scanResponse didn't
22 contain positionOfTerm.
24 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
25 * will cause an error in a client if a non-YAZ target sends both a
26 * list of Scan entries and non-surrogate diagnostics.
28 Retrieval module enhancements. Tag sets may be typed in the reference
29 to it. From the .abs-file the "tagset" directive takes a third optional
30 integer type for the tag set referenced. From a .tag-file the "include"
31 directive takes a third optional type as well. The old "type" directive
32 in the tag set itself is still recognized but acts as the default type
35 Backend interface change. Individual Scan terms returned from bend_scan
36 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
39 Retrieval module enhancements. Multiple tag sets and attribute sets may
40 be specified in abstract syntax specs. Revised the error/warning for
41 logging messages reported by the retrieval module when reading the
44 Object Identifier system (oid_..) changed. The API is backwards
45 compatible but the oid-routines now allocates new OID's when needed.
46 Raw OID's may be specified in oid_getvalbyname.
48 YAZ now uses GNU configure to generate Makefile(s).
50 * Minor changes in some of the member names of DeleteResultSetRequest and
51 DeleteResultSetResponse. See include/proto.h.
53 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
54 and added member 'languages' in TargetInfo (which was missing).
56 Changed the way attribute sets are handled in the retrieval
57 module. These are now cached, just like the abstract syntaxes
60 Changed YAZ so that it links with compiled ASN.1.
62 Added Explain-schema definitions and mapping routines. The following
63 Explain categories have been implemented: AttributeDetails,
64 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
66 Fixed minor bug in Windows version of Server Library.
68 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
70 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
72 Added EXTERNAL: UNIverse Resource Report (non-standard).
74 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
75 ENUMERATED and SET OF.
77 * Added 'const' to some of the char pointer arguments for the
78 functions, data1_read_node, data1_getelementbytagname,
79 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
82 Fixed bug in data1_insert_taggeddata - the last_child member of
83 parent wasn't initialised.
85 * Changed data1_read_record and data1_read_node so that the supplied
86 "SGML"-buffer is read-only. In particular the resulting data1 - tree
87 doesn't refer to any parts of the "SGML"-buffer.
89 Fixed bug in server library (Windows version of statserv_remove).
91 * Changed code so that it compiles as C++. The type definition
92 of Odr_fun which is a member of Odr_arm was changed. The result is,
93 that an explicit typecast is needed for the fun pointer when
94 using Odr_arm - as in:
95 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
97 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
99 Implemented the new structured date and time definition as approved
100 by the ZIG. Added schemaId element to the specificTag in Espec-1
101 (also approved at the last ZIG). Thanks to RVDM.
103 Added some Object identifiers (RVDM).
105 Changed the Update Extended Service (RVDM).
107 Added command "refid" to client which specifies referenceId for
108 the following requests.
110 Implemented extended service handling for server. See ztest.c
111 for an example as well as backend.h. New handlers are registerd
114 * Changed interface for sort in server.
116 Added new members to statserv_options_block. It allows a server
117 to read options from another source than just the command line. Thanks
118 to Charles Woodfield.
120 * Changed definition of Z_Triple in file prt-grs.h - member boolean
121 renamed to zboolean. Some C++ compilers complained about the name.
123 Minor changes to gils.abs. Added index 's' (sort) on title
124 and date/time-last-modified.
128 Fixed bug in server library regarding inetd mode (-i). This bug
129 was introduced by release 1.4.
133 Added sort facility in client and backend server interface.
135 Fixed problem with dependencies in Makefile(s).
137 Fixed bugs for encoders/decoders of extended services and
140 Implemented sub-tree feature for schemas. Sub-trees are
141 referenced in *.abs-files. See explain.abs for an example
142 of the use of this feature.
144 Modified bib1.att; local attributes for ANY didn't include
145 ANY itself (only affects use of the retrieval module).
147 Fixed bug in plain SGML reader in function data1_read_node:
148 tags with prefix "var" was incorrectly interpreted as variants.
150 Added feature "sub-schemas" to enable references to - and definitions
151 of - group of elements.
153 * Removed member parent from type data1_element (in data1.h).
155 Implemented function odr_nullval() that returns the value of
158 * Removed member num_children from data1_node (in data1.h).
160 Made NT service interface part of the server library. The
161 function statserv_main uses the NT service when required and
162 calls the statserv_start / statserv_close routines.
164 Routine zget_SearchRequest and zget_PresentRequest fills
165 resultSetName/Id member with "default" instead of "Default".
167 Fixed memory leak in server. Request queue member wasn't freed.
169 Fixed nmem_exit so that memory is freed.
173 Revised the CCL parser utility to be thread safe.
175 Added function, oid_ent_to_oid, to replace the function
176 oid_getoidbyent, which is not thread safe.
178 * Added nmem_init and nmem_exit to initialize and release
179 NMEM resources. Function nmem_init should be called once in the
180 initial thread before NMEM/ODR is used. statserv.c and client.c
181 have been changed accordingly. The change was necessary to make
182 NMEM thread safe. The NMEM memory pool is shared amongst threads
183 in a process. Unix-based applications will still work fine without
186 Added NT Services interface for the the Z39.50 (statserv) Server.
187 Refer to the ztest.c source on the usage.
189 Windows 95/NT port using MSVC5.0. Project files are included in the
192 * Defined new 'global' handle for the retrieval (data1) system. The
193 new handled, data1_handle, describes the state of the data1 system.
194 This handle is passed as first argument to virtually all
195 data1 related routines. The functions data1_create and data1_destroy
196 creates and destroys a data1 handle respectively.
198 Added ODR encode stream member to all backend request structures
199 init, search, scan etc. This stream should be used to allocate all
200 memory used for the response when thread safe operation is needed.
202 Changed the comstack utility, cs_addstr, to be thread safe. The
203 returned hostname string returned by the function is now part the
206 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
207 function. The cs_straddr takes a COMSTACK handle as argument, so this
208 function must be used after cs_create and before bind/connect.
209 This function is thread safe.
211 Moved test server to 'ztest' directory - generic server code still
212 in 'server' directory.
214 Made prefix query (pquery.c) utility thread safe.
216 Added new function modifier YAZ_EXPORT to 'export' public DLL
217 functions when using windows (see include/yconfig.h).
219 Added definitions to the OID database (util/oid.c) (RVDM).
221 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
223 Added call to ccl_rpn_delete in client program.
225 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
226 release of RPN structure.
228 Added support for C++, headers uses extern "C" for public definitions.
229 With input from RVDM.
231 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
232 Thanks to Ronald van der Meer (RVDM).
234 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
236 Added support for private extensions to the OID database
237 (oid_setprivateoids()). Thanks to RVDM.
239 Added optional, physical ANY (key replication)
241 Fixed null-reference problem in GRS-1 output filter.
243 Proximity operator added to Prefix Query Format (PQF).
245 In test client command "base" accepts multiple databases.
247 Fixed bug in cs_close stack that caused trouble with WINSOCK.
251 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
253 Smallish bug-fixes in the new encoders/decoders (explain).
255 Bug fixed in DeleteRequest.
257 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
259 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
261 Added SOIF syntax (using private OID for now) to retrieval module and client.
263 Added Update extended service.
265 Added SearchResult-1 additional info structure.
267 Added optional CCL (ISO8777) interpreter as separate module. Available
270 --- 1.2 1996/6/10 (1st anniversary release)
272 Added Summary record syntax. Lightly tested.
274 Added OPAC record syntax. Untested.
276 Added ResourceReport service encoders/decoders. Untested.
278 Fixed bug in z_Unit - wrong tagging on unitSystem.
280 Fixed bug in the DiagRecs decoder.
282 Added options for max PDU size and session timeout to frontend-server.
284 Added documentation of query-language parsers and other supporting utilities.
286 [frontend-server] Added Attribute set to the bend_scanrequest API.
288 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
289 surrogate diagnostics were generated.
291 [retrieval] Allow multiple local values for attribute.
293 [retrieval] Allow multiple attributes per element in .abs files. index type.
295 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
299 Minor changes, mostly specific to Zebra's requirements (retrieval)
303 Repaired bug in frontend server when running multiple listening
304 endpoints in dynamic mode.
306 z_External() now won't break if a known, ASN.1 value comes encapsulated
307 in an octet-string. The value will pass through unmodified in an Odr_oct.
309 Added a bit of code to the demo client to decode & display
310 ASN.1-structured records represented in the octet-aligned branch of
311 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
313 Added z_ext_getentbyref() to the ASN module. Doc updated.
315 * Completed the SCAN definition in the ASN module. This may break SCAN
316 code based on older YAZ-versions at compile-time. The fix is easy -
319 * Added 'displayTerm' and OtherInformation to the TermInfo structure
320 under the SCAN definition. Remember to initialize this, server-people.
322 Comstack should now support the WAIS protocol in TCP/IP mode. Note
323 that this does not extend to ODR and ASN.
325 Comstack allows insertion of established socket (primarily for
326 inetd-operation of servers). Doc updated.
328 Front-end server can now start from the inetd in TCP mode. Doc
335 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
336 the rank and record number.
338 Adjustments to the frontend server.
340 Fixed diagnostic BER dumper. It ignored the file argument.
344 Various changes to retrieval module.
346 Changed the union discriminators of the protocol files from enums to
347 ints paired with #defines.
349 *Changed oident.class to oident.oclass to avoid a reserved word in C++
352 *Changed operator in the RPN structure to 'roperator', again to avoid a
355 Fixed problems in Explain decoders/encoders.
359 Memory bug in log module fixed.
363 Occasional malloc() of 0 bytes fixed in d1_espec.c.
365 Bug in Explain DatabaseInfo module fixed.
367 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
371 The shift to v1.0 signals that we now consider the *core* functionality
372 of YAZ reasonably stable (the core being more or less equivalent to
373 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
374 tested (Explain not at all - though that will happen soonish).
376 Minor changes to code to support Windows port.
378 Various minor changes after we're getting to use GRS-1 & co. more.
380 Added Espec-1 format.
382 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
383 of the protocol and it cannot be selected when encoding (maps into 'string'
384 when decoding). Needed to talk to some servers.
386 Demo client can request simple element set names.
388 Added Diagnostic Format encoders/decoders.
390 Added simple Close handling to frontend server (no hooks for resource
391 reporting yet), and demonstration client.
393 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
397 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
398 handled incorrectly when records were requested in the searchResponse. This
399 will only affect you if you use the frontend-server.
401 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
402 Test-client will ask for and print GRS1. Ztest will return dummy records
405 Added Explain encoders/decoders to the service-level API. Untested.
407 Added Extended Services: Item Order encoders and decoders to the Service-
408 level API. Untested. We could use a recent copy of the pertinent bits
409 of the ILL protocol to add those bits.
411 Added diagnostic format 1 encoders/decoders to the service-level API.
414 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
415 odr_cons.c, which causes a more correct output.
417 Fixed handling of searchRequest in frontend server. NextResultSetPosition
418 was always set to 0 when no records were requested in the searchRequest.
420 * Added better external-handling. This shouldn't harm old code that
421 *encodes* externals. It can break code that looks for a
422 'single-ASN1-type' representation, since those types that are known
423 are now decoded immediately. Look at the SUTRS sample code in
424 seshigh.c and client.c. Documentation updated.
426 Handling of structured records in bend_fetchresponse. Length -1 marks
427 structured record, type is deduced from format field.
430 Fairly quick maintenance release to add SUTRS support.
432 Fixed handling of SUTRS records in the demonstration client.
434 * Added format field to the bend_fetchrequest and bend_fetchresponce
435 structures of the backend API (frontend server). When the record is
436 returned, the value of the format field is mapped to an OID. The
437 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
438 of the record. The special value VAL_NONE in the bend_request means
439 that no specific format was requested by the client. Documentation
440 updated accordingly. Test server (ztest) will return a fixed dummy
441 SUTRS record if your client requests SUTRS.
443 Documentation updated accordingly.
445 You can now set external libraries and RANLIB support in the top-level
449 First public release.