1 Possible compatibility problems with earlier versions marked with '*'.
5 On UNIX, the generated makefile now supports a proper 'make install'.
6 The prefix can be set via GNU configure to set the install location
7 (default is /usr/local).
9 * YAZ programs client and ztest were renamed to yaz-client and
10 yaz-ztest to avoid conflicts when users install YAZ in "standard"
11 locations, such as /usr/bin,/usr/local/bin,etc.
13 * YAZ Header files were moved from include to include/yaz. YAZ Header
14 files are referred to as include <yaz/log.h> rather than <log.h>.
15 The YAZ include path (-I ..) is therefore the same as before. Programmers
16 should update their #include statements or use -Ipath/include/yaz
17 instead. The main motivation for doing this change is that YAZ header files
18 can be installed in "standard" locations /usr/include,/usr/local/include
19 without introducing conflicts, since ALL YAZ header files are stored
20 in subdirectory yaz (under /usr/include for example).
22 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
23 rather than project/workspace files. We switched because project files
24 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
27 Changed name of logging function, logf, to yaz_log, to prevent name
28 clash with some math-log functions. The YAZ header log.h defines logf
29 to yaz_log so there should be no incompatibilities by this modification.
31 Added bend_start/bend_stop handlers for server. These handler are
32 called on start/stop of server. For windows they are called whenever
33 a service is started/stopped.
35 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
36 a fairly small ASN.1 compiler written in Tcl. The compiler is located
37 in util/yc.tcl. The auto-generated C code structures are, in a few
38 cases, incompatible with the old decoders. There are differences in the
39 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
40 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
41 The preprocessor variable ASN_COMPILED is defined when the compiled
42 ASN.1 is being used. Stuff related to the auto-generated encoders
43 are located in sub directory <tt>z39.50</tt>.
45 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
46 version so that it supports both new - and old version of DB Update
48 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
49 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
50 change. The name parameter can be set to 0 in which no name is specified
51 for the construction. The macros odr_implicit and odr_explicit sets name
52 parameter to zero for the construction involved. New macros
53 odr_implicit_tag and odr_explicit_tag are similar to the others,
54 except that a name parameter is added. For programmers' that don't use
55 ODR they probably only need to change the call to z_APDU and z_External.
57 Added access control facility by interfacing the TCP wrapper library.
58 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
59 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
60 name of the daemon and enables the access control as specified in
61 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
63 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
64 den Dool <H.M.vdnDool@kub.nl>.
66 Added reference ID parameter to most functions in server API - refer
67 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
69 Changed name of ccl library to libccl.a (was ccl.a).
71 Fixed bug in decoder for Explain (Category TargetInfo).
73 Added support for GNU readline in client. Thanks to Jacob Poulsen
74 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
76 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
77 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
78 IMPLEMENTATION! This change was made to the development version before
79 the ZIG decided to retract the amendment. If any users MUST be
80 compatible with the original Update definition, PLEASE CONTACT US, and
81 we will include a separate definition corresponding to the old Update
82 ES. Note that because of the change to the ASN.1 of the
83 TaskPackageRecordStructure we cannot define a single structure that
84 will support both versions.
86 * Added const modifier to buffer parameter for some ODR/BER encoding
87 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
88 completeWAIS, odr_dumpBER.
90 Fixed bug in client.c which caused a crash when a scanResponse didn't
91 contain positionOfTerm.
93 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
94 * will cause an error in a client if a non-YAZ target sends both a
95 * list of Scan entries and non-surrogate diagnostics.
97 Retrieval module enhancements. Tag sets may be typed in the reference
98 to it. From the .abs-file the "tagset" directive takes a third optional
99 integer type for the tag set referenced. From a .tag-file the "include"
100 directive takes a third optional type as well. The old "type" directive
101 in the tag set itself is still recognized but acts as the default type
104 Backend interface change. Individual Scan terms returned from bend_scan
105 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
106 in include/backend.h.
108 Retrieval module enhancements. Multiple tag sets and attribute sets may
109 be specified in abstract syntax specs. Revised the error/warning for
110 logging messages reported by the retrieval module when reading the
113 Object Identifier system (oid_..) changed. The API is backwards
114 compatible but the oid-routines now allocates new OID's when needed.
115 Raw OID's may be specified in oid_getvalbyname.
117 YAZ now uses GNU configure to generate Makefile(s).
119 * Minor changes in some of the member names of DeleteResultSetRequest and
120 DeleteResultSetResponse. See include/proto.h.
122 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
123 and added member 'languages' in TargetInfo (which was missing).
125 Changed the way attribute sets are handled in the retrieval
126 module. These are now cached, just like the abstract syntaxes
129 Changed YAZ so that it links with compiled ASN.1.
131 Added Explain-schema definitions and mapping routines. The following
132 Explain categories have been implemented: AttributeDetails,
133 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
135 Fixed minor bug in Windows version of Server Library.
137 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
139 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
141 Added EXTERNAL: UNIverse Resource Report (non-standard).
143 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
144 ENUMERATED and SET OF.
146 * Added 'const' to some of the char pointer arguments for the
147 functions, data1_read_node, data1_getelementbytagname,
148 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
151 Fixed bug in data1_insert_taggeddata - the last_child member of
152 parent wasn't initialised.
154 * Changed data1_read_record and data1_read_node so that the supplied
155 "SGML"-buffer is read-only. In particular the resulting data1 - tree
156 doesn't refer to any parts of the "SGML"-buffer.
158 Fixed bug in server library (Windows version of statserv_remove).
160 * Changed code so that it compiles as C++. The type definition
161 of Odr_fun which is a member of Odr_arm was changed. The result is,
162 that an explicit typecast is needed for the fun pointer when
163 using Odr_arm - as in:
164 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
166 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
168 Implemented the new structured date and time definition as approved
169 by the ZIG. Added schemaId element to the specificTag in Espec-1
170 (also approved at the last ZIG). Thanks to RVDM.
172 Added some Object identifiers (RVDM).
174 Changed the Update Extended Service (RVDM).
176 Added command "refid" to client which specifies referenceId for
177 the following requests.
179 Implemented extended service handling for server. See ztest.c
180 for an example as well as backend.h. New handlers are registerd
183 * Changed interface for sort in server.
185 Added new members to statserv_options_block. It allows a server
186 to read options from another source than just the command line. Thanks
187 to Charles Woodfield.
189 * Changed definition of Z_Triple in file prt-grs.h - member boolean
190 renamed to zboolean. Some C++ compilers complained about the name.
192 Minor changes to gils.abs. Added index 's' (sort) on title
193 and date/time-last-modified.
197 Fixed bug in server library regarding inetd mode (-i). This bug
198 was introduced by release 1.4.
202 Added sort facility in client and backend server interface.
204 Fixed problem with dependencies in Makefile(s).
206 Fixed bugs for encoders/decoders of extended services and
209 Implemented sub-tree feature for schemas. Sub-trees are
210 referenced in *.abs-files. See explain.abs for an example
211 of the use of this feature.
213 Modified bib1.att; local attributes for ANY didn't include
214 ANY itself (only affects use of the retrieval module).
216 Fixed bug in plain SGML reader in function data1_read_node:
217 tags with prefix "var" was incorrectly interpreted as variants.
219 Added feature "sub-schemas" to enable references to - and definitions
220 of - group of elements.
222 * Removed member parent from type data1_element (in data1.h).
224 Implemented function odr_nullval() that returns the value of
227 * Removed member num_children from data1_node (in data1.h).
229 Made NT service interface part of the server library. The
230 function statserv_main uses the NT service when required and
231 calls the statserv_start / statserv_close routines.
233 Routine zget_SearchRequest and zget_PresentRequest fills
234 resultSetName/Id member with "default" instead of "Default".
236 Fixed memory leak in server. Request queue member wasn't freed.
238 Fixed nmem_exit so that memory is freed.
242 Revised the CCL parser utility to be thread safe.
244 Added function, oid_ent_to_oid, to replace the function
245 oid_getoidbyent, which is not thread safe.
247 * Added nmem_init and nmem_exit to initialize and release
248 NMEM resources. Function nmem_init should be called once in the
249 initial thread before NMEM/ODR is used. statserv.c and client.c
250 have been changed accordingly. The change was necessary to make
251 NMEM thread safe. The NMEM memory pool is shared amongst threads
252 in a process. Unix-based applications will still work fine without
255 Added NT Services interface for the the Z39.50 (statserv) Server.
256 Refer to the ztest.c source on the usage.
258 Windows 95/NT port using MSVC5.0. Project files are included in the
261 * Defined new 'global' handle for the retrieval (data1) system. The
262 new handled, data1_handle, describes the state of the data1 system.
263 This handle is passed as first argument to virtually all
264 data1 related routines. The functions data1_create and data1_destroy
265 creates and destroys a data1 handle respectively.
267 Added ODR encode stream member to all backend request structures
268 init, search, scan etc. This stream should be used to allocate all
269 memory used for the response when thread safe operation is needed.
271 Changed the comstack utility, cs_addstr, to be thread safe. The
272 returned hostname string returned by the function is now part the
275 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
276 function. The cs_straddr takes a COMSTACK handle as argument, so this
277 function must be used after cs_create and before bind/connect.
278 This function is thread safe.
280 Moved test server to 'ztest' directory - generic server code still
281 in 'server' directory.
283 Made prefix query (pquery.c) utility thread safe.
285 Added new function modifier YAZ_EXPORT to 'export' public DLL
286 functions when using windows (see include/yconfig.h).
288 Added definitions to the OID database (util/oid.c) (RVDM).
290 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
292 Added call to ccl_rpn_delete in client program.
294 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
295 release of RPN structure.
297 Added support for C++, headers uses extern "C" for public definitions.
298 With input from RVDM.
300 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
301 Thanks to Ronald van der Meer (RVDM).
303 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
305 Added support for private extensions to the OID database
306 (oid_setprivateoids()). Thanks to RVDM.
308 Added optional, physical ANY (key replication)
310 Fixed null-reference problem in GRS-1 output filter.
312 Proximity operator added to Prefix Query Format (PQF).
314 In test client command "base" accepts multiple databases.
316 Fixed bug in cs_close stack that caused trouble with WINSOCK.
320 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
322 Smallish bug-fixes in the new encoders/decoders (explain).
324 Bug fixed in DeleteRequest.
326 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
328 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
330 Added SOIF syntax (using private OID for now) to retrieval module and client.
332 Added Update extended service.
334 Added SearchResult-1 additional info structure.
336 Added optional CCL (ISO8777) interpreter as separate module. Available
339 --- 1.2 1996/6/10 (1st anniversary release)
341 Added Summary record syntax. Lightly tested.
343 Added OPAC record syntax. Untested.
345 Added ResourceReport service encoders/decoders. Untested.
347 Fixed bug in z_Unit - wrong tagging on unitSystem.
349 Fixed bug in the DiagRecs decoder.
351 Added options for max PDU size and session timeout to frontend-server.
353 Added documentation of query-language parsers and other supporting utilities.
355 [frontend-server] Added Attribute set to the bend_scanrequest API.
357 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
358 surrogate diagnostics were generated.
360 [retrieval] Allow multiple local values for attribute.
362 [retrieval] Allow multiple attributes per element in .abs files. index type.
364 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
368 Minor changes, mostly specific to Zebra's requirements (retrieval)
372 Repaired bug in frontend server when running multiple listening
373 endpoints in dynamic mode.
375 z_External() now won't break if a known, ASN.1 value comes encapsulated
376 in an octet-string. The value will pass through unmodified in an Odr_oct.
378 Added a bit of code to the demo client to decode & display
379 ASN.1-structured records represented in the octet-aligned branch of
380 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
382 Added z_ext_getentbyref() to the ASN module. Doc updated.
384 * Completed the SCAN definition in the ASN module. This may break SCAN
385 code based on older YAZ-versions at compile-time. The fix is easy -
388 * Added 'displayTerm' and OtherInformation to the TermInfo structure
389 under the SCAN definition. Remember to initialize this, server-people.
391 Comstack should now support the WAIS protocol in TCP/IP mode. Note
392 that this does not extend to ODR and ASN.
394 Comstack allows insertion of established socket (primarily for
395 inetd-operation of servers). Doc updated.
397 Front-end server can now start from the inetd in TCP mode. Doc
404 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
405 the rank and record number.
407 Adjustments to the frontend server.
409 Fixed diagnostic BER dumper. It ignored the file argument.
413 Various changes to retrieval module.
415 Changed the union discriminators of the protocol files from enums to
416 ints paired with #defines.
418 *Changed oident.class to oident.oclass to avoid a reserved word in C++
421 *Changed operator in the RPN structure to 'roperator', again to avoid a
424 Fixed problems in Explain decoders/encoders.
428 Memory bug in log module fixed.
432 Occasional malloc() of 0 bytes fixed in d1_espec.c.
434 Bug in Explain DatabaseInfo module fixed.
436 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
440 The shift to v1.0 signals that we now consider the *core* functionality
441 of YAZ reasonably stable (the core being more or less equivalent to
442 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
443 tested (Explain not at all - though that will happen soonish).
445 Minor changes to code to support Windows port.
447 Various minor changes after we're getting to use GRS-1 & co. more.
449 Added Espec-1 format.
451 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
452 of the protocol and it cannot be selected when encoding (maps into 'string'
453 when decoding). Needed to talk to some servers.
455 Demo client can request simple element set names.
457 Added Diagnostic Format encoders/decoders.
459 Added simple Close handling to frontend server (no hooks for resource
460 reporting yet), and demonstration client.
462 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
466 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
467 handled incorrectly when records were requested in the searchResponse. This
468 will only affect you if you use the frontend-server.
470 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
471 Test-client will ask for and print GRS1. Ztest will return dummy records
474 Added Explain encoders/decoders to the service-level API. Untested.
476 Added Extended Services: Item Order encoders and decoders to the Service-
477 level API. Untested. We could use a recent copy of the pertinent bits
478 of the ILL protocol to add those bits.
480 Added diagnostic format 1 encoders/decoders to the service-level API.
483 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
484 odr_cons.c, which causes a more correct output.
486 Fixed handling of searchRequest in frontend server. NextResultSetPosition
487 was always set to 0 when no records were requested in the searchRequest.
489 * Added better external-handling. This shouldn't harm old code that
490 *encodes* externals. It can break code that looks for a
491 'single-ASN1-type' representation, since those types that are known
492 are now decoded immediately. Look at the SUTRS sample code in
493 seshigh.c and client.c. Documentation updated.
495 Handling of structured records in bend_fetchresponse. Length -1 marks
496 structured record, type is deduced from format field.
499 Fairly quick maintenance release to add SUTRS support.
501 Fixed handling of SUTRS records in the demonstration client.
503 * Added format field to the bend_fetchrequest and bend_fetchresponce
504 structures of the backend API (frontend server). When the record is
505 returned, the value of the format field is mapped to an OID. The
506 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
507 of the record. The special value VAL_NONE in the bend_request means
508 that no specific format was requested by the client. Documentation
509 updated accordingly. Test server (ztest) will return a fixed dummy
510 SUTRS record if your client requests SUTRS.
512 Documentation updated accordingly.
514 You can now set external libraries and RANLIB support in the top-level
518 First public release.