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