1 Possible compatibility problems with earlier versions marked with '*'.
3 Changed retrieval module so that we can load records with no abstract
4 syntax defined. Tagpaths in these records are fully composed of string tags.
6 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
10 On UNIX, the generated makefile now supports a proper 'make install'.
11 The prefix can be set via GNU configure to set the install location
12 (default is /usr/local).
14 * YAZ programs client and ztest were renamed to yaz-client and
15 yaz-ztest to avoid conflicts when users install YAZ in "standard"
16 locations, such as /usr/bin,/usr/local/bin,etc.
18 * YAZ Header files were moved from include to include/yaz. YAZ Header
19 files are referred to as include <yaz/log.h> rather than <log.h>.
20 The YAZ include path (-I ..) is therefore the same as before. Programmers
21 should update their #include statements or use -Ipath/include/yaz
22 instead. The main motivation for doing this change is that YAZ header files
23 can be installed in "standard" locations /usr/include,/usr/local/include
24 without introducing conflicts, since ALL YAZ header files are stored
25 in subdirectory yaz (under /usr/include for example).
27 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
28 rather than project/workspace files. We switched because project files
29 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
32 Changed name of logging function, logf, to yaz_log, to prevent name
33 clash with some math-log functions. The YAZ header log.h defines logf
34 to yaz_log (#define) so there should be no incompatibilities by this
37 Added bend_start/bend_stop handlers for server. These handler are
38 called on start/stop of server. For windows they are called whenever
39 a service is started/stopped.
41 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
42 a fairly small ASN.1 compiler written in Tcl. The compiler is located
43 in util/yc.tcl. The auto-generated C code structures are, in a few
44 cases, incompatible with the old decoders. There are differences in the
45 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
46 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
47 The preprocessor variable ASN_COMPILED is defined when the compiled
48 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
49 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
50 wish to use the old encoders/decoders you can specify --disable-yc
53 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
54 version so that it supports both new - and old version of DB Update
56 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
57 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
58 change. The name parameter can be set to 0 in which no name is specified
59 for the construction. The macros odr_implicit and odr_explicit sets name
60 parameter to zero for the construction involved. New macros
61 odr_implicit_tag and odr_explicit_tag are similar to the others,
62 except that a name parameter is added. For programmers' that don't use
63 ODR they probably only need to change the call to z_APDU and z_External.
65 Added access control facility by interfacing the TCP wrapper library.
66 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
67 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
68 name of the daemon and enables the access control as specified in
69 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
71 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
72 den Dool <H.M.vdnDool@kub.nl>.
74 Added reference ID parameter to most functions in server API - refer
75 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
77 Changed name of ccl library to libccl.a (was ccl.a).
79 Fixed bug in decoder for Explain (Category TargetInfo).
81 Added support for GNU readline in client. Thanks to Jacob Poulsen
82 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
84 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
85 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
86 IMPLEMENTATION! This change was made to the development version before
87 the ZIG decided to retract the amendment. If any users MUST be
88 compatible with the original Update definition, PLEASE CONTACT US, and
89 we will include a separate definition corresponding to the old Update
90 ES. Note that because of the change to the ASN.1 of the
91 TaskPackageRecordStructure we cannot define a single structure that
92 will support both versions.
94 * Added const modifier to buffer parameter for some ODR/BER encoding
95 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
96 completeWAIS, odr_dumpBER.
98 Fixed bug in client.c which caused a crash when a scanResponse didn't
99 contain positionOfTerm.
101 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
102 * will cause an error in a client if a non-YAZ target sends both a
103 * list of Scan entries and non-surrogate diagnostics.
105 Retrieval module enhancements. Tag sets may be typed in the reference
106 to it. From the .abs-file the "tagset" directive takes a third optional
107 integer type for the tag set referenced. From a .tag-file the "include"
108 directive takes a third optional type as well. The old "type" directive
109 in the tag set itself is still recognized but acts as the default type
112 Backend interface change. Individual Scan terms returned from bend_scan
113 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
114 in include/backend.h.
116 Retrieval module enhancements. Multiple tag sets and attribute sets may
117 be specified in abstract syntax specs. Revised the error/warning for
118 logging messages reported by the retrieval module when reading the
121 Object Identifier system (oid_..) changed. The API is backwards
122 compatible but the oid-routines now allocates new OID's when needed.
123 Raw OID's may be specified in oid_getvalbyname.
125 YAZ now uses GNU configure to generate Makefile(s).
127 * Minor changes in some of the member names of DeleteResultSetRequest and
128 DeleteResultSetResponse. See include/proto.h.
130 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
131 and added member 'languages' in TargetInfo (which was missing).
133 Changed the way attribute sets are handled in the retrieval
134 module. These are now cached, just like the abstract syntaxes
137 Changed YAZ so that it links with compiled ASN.1.
139 Added Explain-schema definitions and mapping routines. The following
140 Explain categories have been implemented: AttributeDetails,
141 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
143 Fixed minor bug in Windows version of Server Library.
145 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
147 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
149 Added EXTERNAL: UNIverse Resource Report (non-standard).
151 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
152 ENUMERATED and SET OF.
154 * Added 'const' to some of the char pointer arguments for the
155 functions, data1_read_node, data1_getelementbytagname,
156 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
159 Fixed bug in data1_insert_taggeddata - the last_child member of
160 parent wasn't initialised.
162 * Changed data1_read_record and data1_read_node so that the supplied
163 "SGML"-buffer is read-only. In particular the resulting data1 - tree
164 doesn't refer to any parts of the "SGML"-buffer.
166 Fixed bug in server library (Windows version of statserv_remove).
168 * Changed code so that it compiles as C++. The type definition
169 of Odr_fun which is a member of Odr_arm was changed. The result is,
170 that an explicit typecast is needed for the fun pointer when
171 using Odr_arm - as in:
172 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
174 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
176 Implemented the new structured date and time definition as approved
177 by the ZIG. Added schemaId element to the specificTag in Espec-1
178 (also approved at the last ZIG). Thanks to RVDM.
180 Added some Object identifiers (RVDM).
182 Changed the Update Extended Service (RVDM).
184 Added command "refid" to client which specifies referenceId for
185 the following requests.
187 Implemented extended service handling for server. See ztest.c
188 for an example as well as backend.h. New handlers are registerd
191 * Changed interface for sort in server.
193 Added new members to statserv_options_block. It allows a server
194 to read options from another source than just the command line. Thanks
195 to Charles Woodfield.
197 * Changed definition of Z_Triple in file prt-grs.h - member boolean
198 renamed to zboolean. Some C++ compilers complained about the name.
200 Minor changes to gils.abs. Added index 's' (sort) on title
201 and date/time-last-modified.
205 Fixed bug in server library regarding inetd mode (-i). This bug
206 was introduced by release 1.4.
210 Added sort facility in client and backend server interface.
212 Fixed problem with dependencies in Makefile(s).
214 Fixed bugs for encoders/decoders of extended services and
217 Implemented sub-tree feature for schemas. Sub-trees are
218 referenced in *.abs-files. See explain.abs for an example
219 of the use of this feature.
221 Modified bib1.att; local attributes for ANY didn't include
222 ANY itself (only affects use of the retrieval module).
224 Fixed bug in plain SGML reader in function data1_read_node:
225 tags with prefix "var" was incorrectly interpreted as variants.
227 Added feature "sub-schemas" to enable references to - and definitions
228 of - group of elements.
230 * Removed member parent from type data1_element (in data1.h).
232 Implemented function odr_nullval() that returns the value of
235 * Removed member num_children from data1_node (in data1.h).
237 Made NT service interface part of the server library. The
238 function statserv_main uses the NT service when required and
239 calls the statserv_start / statserv_close routines.
241 Routine zget_SearchRequest and zget_PresentRequest fills
242 resultSetName/Id member with "default" instead of "Default".
244 Fixed memory leak in server. Request queue member wasn't freed.
246 Fixed nmem_exit so that memory is freed.
250 Revised the CCL parser utility to be thread safe.
252 Added function, oid_ent_to_oid, to replace the function
253 oid_getoidbyent, which is not thread safe.
255 * Added nmem_init and nmem_exit to initialize and release
256 NMEM resources. Function nmem_init should be called once in the
257 initial thread before NMEM/ODR is used. statserv.c and client.c
258 have been changed accordingly. The change was necessary to make
259 NMEM thread safe. The NMEM memory pool is shared amongst threads
260 in a process. Unix-based applications will still work fine without
263 Added NT Services interface for the the Z39.50 (statserv) Server.
264 Refer to the ztest.c source on the usage.
266 Windows 95/NT port using MSVC5.0. Project files are included in the
269 * Defined new 'global' handle for the retrieval (data1) system. The
270 new handled, data1_handle, describes the state of the data1 system.
271 This handle is passed as first argument to virtually all
272 data1 related routines. The functions data1_create and data1_destroy
273 creates and destroys a data1 handle respectively.
275 Added ODR encode stream member to all backend request structures
276 init, search, scan etc. This stream should be used to allocate all
277 memory used for the response when thread safe operation is needed.
279 Changed the comstack utility, cs_addstr, to be thread safe. The
280 returned hostname string returned by the function is now part the
283 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
284 function. The cs_straddr takes a COMSTACK handle as argument, so this
285 function must be used after cs_create and before bind/connect.
286 This function is thread safe.
288 Moved test server to 'ztest' directory - generic server code still
289 in 'server' directory.
291 Made prefix query (pquery.c) utility thread safe.
293 Added new function modifier YAZ_EXPORT to 'export' public DLL
294 functions when using windows (see include/yconfig.h).
296 Added definitions to the OID database (util/oid.c) (RVDM).
298 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
300 Added call to ccl_rpn_delete in client program.
302 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
303 release of RPN structure.
305 Added support for C++, headers uses extern "C" for public definitions.
306 With input from RVDM.
308 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
309 Thanks to Ronald van der Meer (RVDM).
311 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
313 Added support for private extensions to the OID database
314 (oid_setprivateoids()). Thanks to RVDM.
316 Added optional, physical ANY (key replication)
318 Fixed null-reference problem in GRS-1 output filter.
320 Proximity operator added to Prefix Query Format (PQF).
322 In test client command "base" accepts multiple databases.
324 Fixed bug in cs_close stack that caused trouble with WINSOCK.
328 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
330 Smallish bug-fixes in the new encoders/decoders (explain).
332 Bug fixed in DeleteRequest.
334 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
336 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
338 Added SOIF syntax (using private OID for now) to retrieval module and client.
340 Added Update extended service.
342 Added SearchResult-1 additional info structure.
344 Added optional CCL (ISO8777) interpreter as separate module. Available
347 --- 1.2 1996/6/10 (1st anniversary release)
349 Added Summary record syntax. Lightly tested.
351 Added OPAC record syntax. Untested.
353 Added ResourceReport service encoders/decoders. Untested.
355 Fixed bug in z_Unit - wrong tagging on unitSystem.
357 Fixed bug in the DiagRecs decoder.
359 Added options for max PDU size and session timeout to frontend-server.
361 Added documentation of query-language parsers and other supporting utilities.
363 [frontend-server] Added Attribute set to the bend_scanrequest API.
365 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
366 surrogate diagnostics were generated.
368 [retrieval] Allow multiple local values for attribute.
370 [retrieval] Allow multiple attributes per element in .abs files. index type.
372 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
376 Minor changes, mostly specific to Zebra's requirements (retrieval)
380 Repaired bug in frontend server when running multiple listening
381 endpoints in dynamic mode.
383 z_External() now won't break if a known, ASN.1 value comes encapsulated
384 in an octet-string. The value will pass through unmodified in an Odr_oct.
386 Added a bit of code to the demo client to decode & display
387 ASN.1-structured records represented in the octet-aligned branch of
388 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
390 Added z_ext_getentbyref() to the ASN module. Doc updated.
392 * Completed the SCAN definition in the ASN module. This may break SCAN
393 code based on older YAZ-versions at compile-time. The fix is easy -
396 * Added 'displayTerm' and OtherInformation to the TermInfo structure
397 under the SCAN definition. Remember to initialize this, server-people.
399 Comstack should now support the WAIS protocol in TCP/IP mode. Note
400 that this does not extend to ODR and ASN.
402 Comstack allows insertion of established socket (primarily for
403 inetd-operation of servers). Doc updated.
405 Front-end server can now start from the inetd in TCP mode. Doc
412 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
413 the rank and record number.
415 Adjustments to the frontend server.
417 Fixed diagnostic BER dumper. It ignored the file argument.
421 Various changes to retrieval module.
423 Changed the union discriminators of the protocol files from enums to
424 ints paired with #defines.
426 *Changed oident.class to oident.oclass to avoid a reserved word in C++
429 *Changed operator in the RPN structure to 'roperator', again to avoid a
432 Fixed problems in Explain decoders/encoders.
436 Memory bug in log module fixed.
440 Occasional malloc() of 0 bytes fixed in d1_espec.c.
442 Bug in Explain DatabaseInfo module fixed.
444 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
448 The shift to v1.0 signals that we now consider the *core* functionality
449 of YAZ reasonably stable (the core being more or less equivalent to
450 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
451 tested (Explain not at all - though that will happen soonish).
453 Minor changes to code to support Windows port.
455 Various minor changes after we're getting to use GRS-1 & co. more.
457 Added Espec-1 format.
459 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
460 of the protocol and it cannot be selected when encoding (maps into 'string'
461 when decoding). Needed to talk to some servers.
463 Demo client can request simple element set names.
465 Added Diagnostic Format encoders/decoders.
467 Added simple Close handling to frontend server (no hooks for resource
468 reporting yet), and demonstration client.
470 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
474 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
475 handled incorrectly when records were requested in the searchResponse. This
476 will only affect you if you use the frontend-server.
478 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
479 Test-client will ask for and print GRS1. Ztest will return dummy records
482 Added Explain encoders/decoders to the service-level API. Untested.
484 Added Extended Services: Item Order encoders and decoders to the Service-
485 level API. Untested. We could use a recent copy of the pertinent bits
486 of the ILL protocol to add those bits.
488 Added diagnostic format 1 encoders/decoders to the service-level API.
491 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
492 odr_cons.c, which causes a more correct output.
494 Fixed handling of searchRequest in frontend server. NextResultSetPosition
495 was always set to 0 when no records were requested in the searchRequest.
497 * Added better external-handling. This shouldn't harm old code that
498 *encodes* externals. It can break code that looks for a
499 'single-ASN1-type' representation, since those types that are known
500 are now decoded immediately. Look at the SUTRS sample code in
501 seshigh.c and client.c. Documentation updated.
503 Handling of structured records in bend_fetchresponse. Length -1 marks
504 structured record, type is deduced from format field.
507 Fairly quick maintenance release to add SUTRS support.
509 Fixed handling of SUTRS records in the demonstration client.
511 * Added format field to the bend_fetchrequest and bend_fetchresponce
512 structures of the backend API (frontend server). When the record is
513 returned, the value of the format field is mapped to an OID. The
514 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
515 of the record. The special value VAL_NONE in the bend_request means
516 that no specific format was requested by the client. Documentation
517 updated accordingly. Test server (ztest) will return a fixed dummy
518 SUTRS record if your client requests SUTRS.
520 Documentation updated accordingly.
522 You can now set external libraries and RANLIB support in the top-level
526 First public release.