1 Possible compatibility problems with earlier versions marked with '*'.
3 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
4 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
5 change. The name parameter can be set to 0 in which no name is specified
6 for the construction. The macros odr_implicit and odr_explicit sets name
7 parameter to zero for the construction involved. New macros
8 odr_implicit_tag and odr_explicit_tag are similar to the others,
9 except that a name parameter is added. For programmers' that don't use
10 ODR they probably only need to change the call to z_APDU and z_External.
12 Added access control facility by interfacing the TCP wrapper library.
13 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
14 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
15 name of the daemon and enables the access control as specified in
16 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
18 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
19 den Dool <H.M.vdnDool@kub.nl>.
21 Added reference ID parameter to most functions in server API - refer
22 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
24 Changed name of ccl library to libccl.a (was ccl.a).
26 Fixed bug in decoder for Explain (Category TargetInfo).
28 Added support for GNU readline in client. Thanks to Jacob Poulsen
29 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
31 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
32 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
33 IMPLEMENTATION! This change was made to the development version before
34 the ZIG decided to retract the amendment. If any users MUST be
35 compatible with the original Update definition, PLEASE CONTACT US, and
36 we will include a separate definition corresponding to the old Update
37 ES. Note that because of the change to the ASN.1 of the
38 TaskPackageRecordStructure we cannot define a single structure that
39 will support both versions.
41 * Added const modifier to buffer parameter for some ODR/BER encoding
42 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
43 completeWAIS, odr_dumpBER.
45 Fixed bug in client.c which caused a crash when a scanResponse didn't
46 contain positionOfTerm.
48 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
49 * will cause an error in a client if a non-YAZ target sends both a
50 * list of Scan entries and non-surrogate diagnostics.
52 Retrieval module enhancements. Tag sets may be typed in the reference
53 to it. From the .abs-file the "tagset" directive takes a third optional
54 integer type for the tag set referenced. From a .tag-file the "include"
55 directive takes a third optional type as well. The old "type" directive
56 in the tag set itself is still recognized but acts as the default type
59 Backend interface change. Individual Scan terms returned from bend_scan
60 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
63 Retrieval module enhancements. Multiple tag sets and attribute sets may
64 be specified in abstract syntax specs. Revised the error/warning for
65 logging messages reported by the retrieval module when reading the
68 Object Identifier system (oid_..) changed. The API is backwards
69 compatible but the oid-routines now allocates new OID's when needed.
70 Raw OID's may be specified in oid_getvalbyname.
72 YAZ now uses GNU configure to generate Makefile(s).
74 * Minor changes in some of the member names of DeleteResultSetRequest and
75 DeleteResultSetResponse. See include/proto.h.
77 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
78 and added member 'languages' in TargetInfo (which was missing).
80 Changed the way attribute sets are handled in the retrieval
81 module. These are now cached, just like the abstract syntaxes
84 Changed YAZ so that it links with compiled ASN.1.
86 Added Explain-schema definitions and mapping routines. The following
87 Explain categories have been implemented: AttributeDetails,
88 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
90 Fixed minor bug in Windows version of Server Library.
92 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
94 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
96 Added EXTERNAL: UNIverse Resource Report (non-standard).
98 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
99 ENUMERATED and SET OF.
101 * Added 'const' to some of the char pointer arguments for the
102 functions, data1_read_node, data1_getelementbytagname,
103 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
106 Fixed bug in data1_insert_taggeddata - the last_child member of
107 parent wasn't initialised.
109 * Changed data1_read_record and data1_read_node so that the supplied
110 "SGML"-buffer is read-only. In particular the resulting data1 - tree
111 doesn't refer to any parts of the "SGML"-buffer.
113 Fixed bug in server library (Windows version of statserv_remove).
115 * Changed code so that it compiles as C++. The type definition
116 of Odr_fun which is a member of Odr_arm was changed. The result is,
117 that an explicit typecast is needed for the fun pointer when
118 using Odr_arm - as in:
119 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
121 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
123 Implemented the new structured date and time definition as approved
124 by the ZIG. Added schemaId element to the specificTag in Espec-1
125 (also approved at the last ZIG). Thanks to RVDM.
127 Added some Object identifiers (RVDM).
129 Changed the Update Extended Service (RVDM).
131 Added command "refid" to client which specifies referenceId for
132 the following requests.
134 Implemented extended service handling for server. See ztest.c
135 for an example as well as backend.h. New handlers are registerd
138 * Changed interface for sort in server.
140 Added new members to statserv_options_block. It allows a server
141 to read options from another source than just the command line. Thanks
142 to Charles Woodfield.
144 * Changed definition of Z_Triple in file prt-grs.h - member boolean
145 renamed to zboolean. Some C++ compilers complained about the name.
147 Minor changes to gils.abs. Added index 's' (sort) on title
148 and date/time-last-modified.
152 Fixed bug in server library regarding inetd mode (-i). This bug
153 was introduced by release 1.4.
157 Added sort facility in client and backend server interface.
159 Fixed problem with dependencies in Makefile(s).
161 Fixed bugs for encoders/decoders of extended services and
164 Implemented sub-tree feature for schemas. Sub-trees are
165 referenced in *.abs-files. See explain.abs for an example
166 of the use of this feature.
168 Modified bib1.att; local attributes for ANY didn't include
169 ANY itself (only affects use of the retrieval module).
171 Fixed bug in plain SGML reader in function data1_read_node:
172 tags with prefix "var" was incorrectly interpreted as variants.
174 Added feature "sub-schemas" to enable references to - and definitions
175 of - group of elements.
177 * Removed member parent from type data1_element (in data1.h).
179 Implemented function odr_nullval() that returns the value of
182 * Removed member num_children from data1_node (in data1.h).
184 Made NT service interface part of the server library. The
185 function statserv_main uses the NT service when required and
186 calls the statserv_start / statserv_close routines.
188 Routine zget_SearchRequest and zget_PresentRequest fills
189 resultSetName/Id member with "default" instead of "Default".
191 Fixed memory leak in server. Request queue member wasn't freed.
193 Fixed nmem_exit so that memory is freed.
197 Revised the CCL parser utility to be thread safe.
199 Added function, oid_ent_to_oid, to replace the function
200 oid_getoidbyent, which is not thread safe.
202 * Added nmem_init and nmem_exit to initialize and release
203 NMEM resources. Function nmem_init should be called once in the
204 initial thread before NMEM/ODR is used. statserv.c and client.c
205 have been changed accordingly. The change was necessary to make
206 NMEM thread safe. The NMEM memory pool is shared amongst threads
207 in a process. Unix-based applications will still work fine without
210 Added NT Services interface for the the Z39.50 (statserv) Server.
211 Refer to the ztest.c source on the usage.
213 Windows 95/NT port using MSVC5.0. Project files are included in the
216 * Defined new 'global' handle for the retrieval (data1) system. The
217 new handled, data1_handle, describes the state of the data1 system.
218 This handle is passed as first argument to virtually all
219 data1 related routines. The functions data1_create and data1_destroy
220 creates and destroys a data1 handle respectively.
222 Added ODR encode stream member to all backend request structures
223 init, search, scan etc. This stream should be used to allocate all
224 memory used for the response when thread safe operation is needed.
226 Changed the comstack utility, cs_addstr, to be thread safe. The
227 returned hostname string returned by the function is now part the
230 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
231 function. The cs_straddr takes a COMSTACK handle as argument, so this
232 function must be used after cs_create and before bind/connect.
233 This function is thread safe.
235 Moved test server to 'ztest' directory - generic server code still
236 in 'server' directory.
238 Made prefix query (pquery.c) utility thread safe.
240 Added new function modifier YAZ_EXPORT to 'export' public DLL
241 functions when using windows (see include/yconfig.h).
243 Added definitions to the OID database (util/oid.c) (RVDM).
245 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
247 Added call to ccl_rpn_delete in client program.
249 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
250 release of RPN structure.
252 Added support for C++, headers uses extern "C" for public definitions.
253 With input from RVDM.
255 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
256 Thanks to Ronald van der Meer (RVDM).
258 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
260 Added support for private extensions to the OID database
261 (oid_setprivateoids()). Thanks to RVDM.
263 Added optional, physical ANY (key replication)
265 Fixed null-reference problem in GRS-1 output filter.
267 Proximity operator added to Prefix Query Format (PQF).
269 In test client command "base" accepts multiple databases.
271 Fixed bug in cs_close stack that caused trouble with WINSOCK.
275 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
277 Smallish bug-fixes in the new encoders/decoders (explain).
279 Bug fixed in DeleteRequest.
281 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
283 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
285 Added SOIF syntax (using private OID for now) to retrieval module and client.
287 Added Update extended service.
289 Added SearchResult-1 additional info structure.
291 Added optional CCL (ISO8777) interpreter as separate module. Available
294 --- 1.2 1996/6/10 (1st anniversary release)
296 Added Summary record syntax. Lightly tested.
298 Added OPAC record syntax. Untested.
300 Added ResourceReport service encoders/decoders. Untested.
302 Fixed bug in z_Unit - wrong tagging on unitSystem.
304 Fixed bug in the DiagRecs decoder.
306 Added options for max PDU size and session timeout to frontend-server.
308 Added documentation of query-language parsers and other supporting utilities.
310 [frontend-server] Added Attribute set to the bend_scanrequest API.
312 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
313 surrogate diagnostics were generated.
315 [retrieval] Allow multiple local values for attribute.
317 [retrieval] Allow multiple attributes per element in .abs files. index type.
319 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
323 Minor changes, mostly specific to Zebra's requirements (retrieval)
327 Repaired bug in frontend server when running multiple listening
328 endpoints in dynamic mode.
330 z_External() now won't break if a known, ASN.1 value comes encapsulated
331 in an octet-string. The value will pass through unmodified in an Odr_oct.
333 Added a bit of code to the demo client to decode & display
334 ASN.1-structured records represented in the octet-aligned branch of
335 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
337 Added z_ext_getentbyref() to the ASN module. Doc updated.
339 * Completed the SCAN definition in the ASN module. This may break SCAN
340 code based on older YAZ-versions at compile-time. The fix is easy -
343 * Added 'displayTerm' and OtherInformation to the TermInfo structure
344 under the SCAN definition. Remember to initialize this, server-people.
346 Comstack should now support the WAIS protocol in TCP/IP mode. Note
347 that this does not extend to ODR and ASN.
349 Comstack allows insertion of established socket (primarily for
350 inetd-operation of servers). Doc updated.
352 Front-end server can now start from the inetd in TCP mode. Doc
359 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
360 the rank and record number.
362 Adjustments to the frontend server.
364 Fixed diagnostic BER dumper. It ignored the file argument.
368 Various changes to retrieval module.
370 Changed the union discriminators of the protocol files from enums to
371 ints paired with #defines.
373 *Changed oident.class to oident.oclass to avoid a reserved word in C++
376 *Changed operator in the RPN structure to 'roperator', again to avoid a
379 Fixed problems in Explain decoders/encoders.
383 Memory bug in log module fixed.
387 Occasional malloc() of 0 bytes fixed in d1_espec.c.
389 Bug in Explain DatabaseInfo module fixed.
391 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
395 The shift to v1.0 signals that we now consider the *core* functionality
396 of YAZ reasonably stable (the core being more or less equivalent to
397 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
398 tested (Explain not at all - though that will happen soonish).
400 Minor changes to code to support Windows port.
402 Various minor changes after we're getting to use GRS-1 & co. more.
404 Added Espec-1 format.
406 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
407 of the protocol and it cannot be selected when encoding (maps into 'string'
408 when decoding). Needed to talk to some servers.
410 Demo client can request simple element set names.
412 Added Diagnostic Format encoders/decoders.
414 Added simple Close handling to frontend server (no hooks for resource
415 reporting yet), and demonstration client.
417 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
421 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
422 handled incorrectly when records were requested in the searchResponse. This
423 will only affect you if you use the frontend-server.
425 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
426 Test-client will ask for and print GRS1. Ztest will return dummy records
429 Added Explain encoders/decoders to the service-level API. Untested.
431 Added Extended Services: Item Order encoders and decoders to the Service-
432 level API. Untested. We could use a recent copy of the pertinent bits
433 of the ILL protocol to add those bits.
435 Added diagnostic format 1 encoders/decoders to the service-level API.
438 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
439 odr_cons.c, which causes a more correct output.
441 Fixed handling of searchRequest in frontend server. NextResultSetPosition
442 was always set to 0 when no records were requested in the searchRequest.
444 * Added better external-handling. This shouldn't harm old code that
445 *encodes* externals. It can break code that looks for a
446 'single-ASN1-type' representation, since those types that are known
447 are now decoded immediately. Look at the SUTRS sample code in
448 seshigh.c and client.c. Documentation updated.
450 Handling of structured records in bend_fetchresponse. Length -1 marks
451 structured record, type is deduced from format field.
454 Fairly quick maintenance release to add SUTRS support.
456 Fixed handling of SUTRS records in the demonstration client.
458 * Added format field to the bend_fetchrequest and bend_fetchresponce
459 structures of the backend API (frontend server). When the record is
460 returned, the value of the format field is mapped to an OID. The
461 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
462 of the record. The special value VAL_NONE in the bend_request means
463 that no specific format was requested by the client. Documentation
464 updated accordingly. Test server (ztest) will return a fixed dummy
465 SUTRS record if your client requests SUTRS.
467 Documentation updated accordingly.
469 You can now set external libraries and RANLIB support in the top-level
473 First public release.