1 Possible compatibility problems with earlier versions marked with '*'.
3 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
4 and added member 'languages' in TargetInfo (which was missing).
6 Changed the way attribute sets are handled in the retrieval
7 module. These are now cached, just like the abstract syntaxes
10 Changed YAZ so that it links with compiled ASN.1.
12 Added Explain-schema definitions and mapping routines. The following
13 Explain categories have been implemented: AttributeDetails,
14 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
16 Fixed minor bug in Windows version of Server Library.
18 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
20 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
22 Added EXTERNAL: UNIverse Resource Report (non-standard).
24 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
25 ENUMERATED and SET OF.
27 * Added 'const' to some of the char pointer arguments for the
28 functions, data1_read_node, data1_getelementbytagname,
29 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
32 Fixed bug in data1_insert_taggeddata - the last_child member of
33 parent wasn't initialised.
35 * Changed data1_read_record and data1_read_node so that the supplied
36 "SGML"-buffer is read-only. In particular the resulting data1 - tree
37 doesn't refer to any parts of the "SGML"-buffer.
39 Fixed bug in server library (Windows version of statserv_remove).
41 * Changed code so that it compiles as C++. The type definition
42 of Odr_fun which is a member of Odr_arm was changed. The result is,
43 that an explicit typecast is needed for the fun pointer when
44 using Odr_arm - as in:
45 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
47 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
49 Implemented the new structured date and time definition as approved
50 by the ZIG. Added schemaId element to the specificTag in Espec-1
51 (also approved at the last ZIG). Thanks to RVDM.
53 Added some Object identifiers (RVDM).
55 Changed the Update Extended Service (RVDM).
57 Added command "refid" to client which specifies referenceId for
58 the following requests.
60 Implemented extended service handling for server. See ztest.c
61 for an example as well as backend.h. New handlers are registerd
64 * Changed interface for sort in server.
66 Added new members to statserv_options_block. It allows a server
67 to read options from another source than just the command line. Thanks
70 * Changed definition of Z_Triple in file prt-grs.h - member boolean
71 renamed to zboolean. Some C++ compilers complained about the name.
73 Minor changes to gils.abs. Added index 's' (sort) on title
74 and date/time-last-modified.
78 Fixed bug in server library regarding inetd mode (-i). This bug
79 was introduced by release 1.4.
83 Added sort facility in client and backend server interface.
85 Fixed problem with dependencies in Makefile(s).
87 Fixed bugs for encoders/decoders of extended services and
90 Implemented sub-tree feature for schemas. Sub-trees are
91 referenced in *.abs-files. See explain.abs for an example
92 of the use of this feature.
94 Modified bib1.att; local attributes for ANY didn't include
95 ANY itself (only affects use of the retrieval module).
97 Fixed bug in plain SGML reader in function data1_read_node:
98 tags with prefix "var" was incorrectly interpreted as variants.
100 Added feature "sub-schemas" to enable references to - and definitions
101 of - group of elements.
103 * Removed member parent from type data1_element (in data1.h).
105 Implemented function odr_nullval() that returns the value of
108 * Removed member num_children from data1_node (in data1.h).
110 Made NT service interface part of the server library. The
111 function statserv_main uses the NT service when required and
112 calls the statserv_start / statserv_close routines.
114 Routine zget_SearchRequest and zget_PresentRequest fills
115 resultSetName/Id member with "default" instead of "Default".
117 Fixed memory leak in server. Request queue member wasn't freed.
119 Fixed nmem_exit so that memory is freed.
123 Revised the CCL parser utility to be thread safe.
125 Added function, oid_ent_to_oid, to replace the function
126 oid_getoidbyent, which is not thread safe.
128 * Added nmem_init and nmem_exit to initialize and release
129 NMEM resources. Function nmem_init should be called once in the
130 initial thread before NMEM/ODR is used. statserv.c and client.c
131 have been changed accordingly. The change was necessary to make
132 NMEM thread safe. The NMEM memory pool is shared amongst threads
133 in a process. Unix-based applications will still work fine without
136 Added NT Services interface for the the Z39.50 (statserv) Server.
137 Refer to the ztest.c source on the usage.
139 Windows 95/NT port using MSVC5.0. Project files are included in the
142 * Defined new 'global' handle for the retrieval (data1) system. The
143 new handled, data1_handle, describes the state of the data1 system.
144 This handle is passed as first argument to virtually all
145 data1 related routines. The functions data1_create and data1_destroy
146 creates and destroys a data1 handle respectively.
148 Added ODR encode stream member to all backend request structures
149 init, search, scan etc. This stream should be used to allocate all
150 memory used for the response when thread safe operation is needed.
152 Changed the comstack utility, cs_addstr, to be thread safe. The
153 returned hostname string returned by the function is now part the
156 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
157 function. The cs_straddr takes a COMSTACK handle as argument, so this
158 function must be used after cs_create and before bind/connect.
159 This function is thread safe.
161 Moved test server to 'ztest' directory - generic server code still
162 in 'server' directory.
164 Made prefix query (pquery.c) utility thread safe.
166 Added new function modifier YAZ_EXPORT to 'export' public DLL
167 functions when using windows (see include/yconfig.h).
169 Added definitions to the OID database (util/oid.c) (RVDM).
171 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
173 Added call to ccl_rpn_delete in client program.
175 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
176 release of RPN structure.
178 Added support for C++, headers uses extern "C" for public definitions.
179 With input from RVDM.
181 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
182 Thanks to Ronald van der Meer (RVDM).
184 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
186 Added support for private extensions to the OID database
187 (oid_setprivateoids()). Thanks to RVDM.
189 Added optional, physical ANY (key replication)
191 Fixed null-reference problem in GRS-1 output filter.
193 Proximity operator added to Prefix Query Format (PQF).
195 In test client command "base" accepts multiple databases.
197 Fixed bug in cs_close stack that caused trouble with WINSOCK.
201 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
203 Smallish bug-fixes in the new encoders/decoders (explain).
205 Bug fixed in DeleteRequest.
207 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
209 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
211 Added SOIF syntax (using private OID for now) to retrieval module and client.
213 Added Update extended service.
215 Added SearchResult-1 additional info structure.
217 Added optional CCL (ISO8777) interpreter as separate module. Available
220 --- 1.2 1996/6/10 (1st anniversary release)
222 Added Summary record syntax. Lightly tested.
224 Added OPAC record syntax. Untested.
226 Added ResourceReport service encoders/decoders. Untested.
228 Fixed bug in z_Unit - wrong tagging on unitSystem.
230 Fixed bug in the DiagRecs decoder.
232 Added options for max PDU size and session timeout to frontend-server.
234 Added documentation of query-language parsers and other supporting utilities.
236 [frontend-server] Added Attribute set to the bend_scanrequest API.
238 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
239 surrogate diagnostics were generated.
241 [retrieval] Allow multiple local values for attribute.
243 [retrieval] Allow multiple attributes per element in .abs files. index type.
245 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
249 Minor changes, mostly specific to Zebra's requirements (retrieval)
253 Repaired bug in frontend server when running multiple listening
254 endpoints in dynamic mode.
256 z_External() now won't break if a known, ASN.1 value comes encapsulated
257 in an octet-string. The value will pass through unmodified in an Odr_oct.
259 Added a bit of code to the demo client to decode & display
260 ASN.1-structured records represented in the octet-aligned branch of
261 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
263 Added z_ext_getentbyref() to the ASN module. Doc updated.
265 * Completed the SCAN definition in the ASN module. This may break SCAN
266 code based on older YAZ-versions at compile-time. The fix is easy -
269 * Added 'displayTerm' and OtherInformation to the TermInfo structure
270 under the SCAN definition. Remember to initialize this, server-people.
272 Comstack should now support the WAIS protocol in TCP/IP mode. Note
273 that this does not extend to ODR and ASN.
275 Comstack allows insertion of established socket (primarily for
276 inetd-operation of servers). Doc updated.
278 Front-end server can now start from the inetd in TCP mode. Doc
285 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
286 the rank and record number.
288 Adjustments to the frontend server.
290 Fixed diagnostic BER dumper. It ignored the file argument.
294 Various changes to retrieval module.
296 Changed the union discriminators of the protocol files from enums to
297 ints paired with #defines.
299 *Changed oident.class to oident.oclass to avoid a reserved word in C++
302 *Changed operator in the RPN structure to 'roperator', again to avoid a
305 Fixed problems in Explain decoders/encoders.
309 Memory bug in log module fixed.
313 Occasional malloc() of 0 bytes fixed in d1_espec.c.
315 Bug in Explain DatabaseInfo module fixed.
317 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
321 The shift to v1.0 signals that we now consider the *core* functionality
322 of YAZ reasonably stable (the core being more or less equivalent to
323 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
324 tested (Explain not at all - though that will happen soonish).
326 Minor changes to code to support Windows port.
328 Various minor changes after we're getting to use GRS-1 & co. more.
330 Added Espec-1 format.
332 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
333 of the protocol and it cannot be selected when encoding (maps into 'string'
334 when decoding). Needed to talk to some servers.
336 Demo client can request simple element set names.
338 Added Diagnostic Format encoders/decoders.
340 Added simple Close handling to frontend server (no hooks for resource
341 reporting yet), and demonstration client.
343 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
347 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
348 handled incorrectly when records were requested in the searchResponse. This
349 will only affect you if you use the frontend-server.
351 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
352 Test-client will ask for and print GRS1. Ztest will return dummy records
355 Added Explain encoders/decoders to the service-level API. Untested.
357 Added Extended Services: Item Order encoders and decoders to the Service-
358 level API. Untested. We could use a recent copy of the pertinent bits
359 of the ILL protocol to add those bits.
361 Added diagnostic format 1 encoders/decoders to the service-level API.
364 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
365 odr_cons.c, which causes a more correct output.
367 Fixed handling of searchRequest in frontend server. NextResultSetPosition
368 was always set to 0 when no records were requested in the searchRequest.
370 * Added better external-handling. This shouldn't harm old code that
371 *encodes* externals. It can break code that looks for a
372 'single-ASN1-type' representation, since those types that are known
373 are now decoded immediately. Look at the SUTRS sample code in
374 seshigh.c and client.c. Documentation updated.
376 Handling of structured records in bend_fetchresponse. Length -1 marks
377 structured record, type is deduced from format field.
380 Fairly quick maintenance release to add SUTRS support.
382 Fixed handling of SUTRS records in the demonstration client.
384 * Added format field to the bend_fetchrequest and bend_fetchresponce
385 structures of the backend API (frontend server). When the record is
386 returned, the value of the format field is mapped to an OID. The
387 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
388 of the record. The special value VAL_NONE in the bend_request means
389 that no specific format was requested by the client. Documentation
390 updated accordingly. Test server (ztest) will return a fixed dummy
391 SUTRS record if your client requests SUTRS.
393 Documentation updated accordingly.
395 You can now set external libraries and RANLIB support in the top-level
399 First public release.