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 (#define) so there should be no incompatibilities by this
32 Added bend_start/bend_stop handlers for server. These handler are
33 called on start/stop of server. For windows they are called whenever
34 a service is started/stopped.
36 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
37 a fairly small ASN.1 compiler written in Tcl. The compiler is located
38 in util/yc.tcl. The auto-generated C code structures are, in a few
39 cases, incompatible with the old decoders. There are differences in the
40 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
41 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
42 The preprocessor variable ASN_COMPILED is defined when the compiled
43 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
44 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
45 wish to use the old encoders/decoders you can specify --disable-yc
48 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
49 version so that it supports both new - and old version of DB Update
51 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
52 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
53 change. The name parameter can be set to 0 in which no name is specified
54 for the construction. The macros odr_implicit and odr_explicit sets name
55 parameter to zero for the construction involved. New macros
56 odr_implicit_tag and odr_explicit_tag are similar to the others,
57 except that a name parameter is added. For programmers' that don't use
58 ODR they probably only need to change the call to z_APDU and z_External.
60 Added access control facility by interfacing the TCP wrapper library.
61 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
62 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
63 name of the daemon and enables the access control as specified in
64 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
66 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
67 den Dool <H.M.vdnDool@kub.nl>.
69 Added reference ID parameter to most functions in server API - refer
70 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
72 Changed name of ccl library to libccl.a (was ccl.a).
74 Fixed bug in decoder for Explain (Category TargetInfo).
76 Added support for GNU readline in client. Thanks to Jacob Poulsen
77 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
79 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
80 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
81 IMPLEMENTATION! This change was made to the development version before
82 the ZIG decided to retract the amendment. If any users MUST be
83 compatible with the original Update definition, PLEASE CONTACT US, and
84 we will include a separate definition corresponding to the old Update
85 ES. Note that because of the change to the ASN.1 of the
86 TaskPackageRecordStructure we cannot define a single structure that
87 will support both versions.
89 * Added const modifier to buffer parameter for some ODR/BER encoding
90 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
91 completeWAIS, odr_dumpBER.
93 Fixed bug in client.c which caused a crash when a scanResponse didn't
94 contain positionOfTerm.
96 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
97 * will cause an error in a client if a non-YAZ target sends both a
98 * list of Scan entries and non-surrogate diagnostics.
100 Retrieval module enhancements. Tag sets may be typed in the reference
101 to it. From the .abs-file the "tagset" directive takes a third optional
102 integer type for the tag set referenced. From a .tag-file the "include"
103 directive takes a third optional type as well. The old "type" directive
104 in the tag set itself is still recognized but acts as the default type
107 Backend interface change. Individual Scan terms returned from bend_scan
108 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
109 in include/backend.h.
111 Retrieval module enhancements. Multiple tag sets and attribute sets may
112 be specified in abstract syntax specs. Revised the error/warning for
113 logging messages reported by the retrieval module when reading the
116 Object Identifier system (oid_..) changed. The API is backwards
117 compatible but the oid-routines now allocates new OID's when needed.
118 Raw OID's may be specified in oid_getvalbyname.
120 YAZ now uses GNU configure to generate Makefile(s).
122 * Minor changes in some of the member names of DeleteResultSetRequest and
123 DeleteResultSetResponse. See include/proto.h.
125 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
126 and added member 'languages' in TargetInfo (which was missing).
128 Changed the way attribute sets are handled in the retrieval
129 module. These are now cached, just like the abstract syntaxes
132 Changed YAZ so that it links with compiled ASN.1.
134 Added Explain-schema definitions and mapping routines. The following
135 Explain categories have been implemented: AttributeDetails,
136 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
138 Fixed minor bug in Windows version of Server Library.
140 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
142 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
144 Added EXTERNAL: UNIverse Resource Report (non-standard).
146 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
147 ENUMERATED and SET OF.
149 * Added 'const' to some of the char pointer arguments for the
150 functions, data1_read_node, data1_getelementbytagname,
151 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
154 Fixed bug in data1_insert_taggeddata - the last_child member of
155 parent wasn't initialised.
157 * Changed data1_read_record and data1_read_node so that the supplied
158 "SGML"-buffer is read-only. In particular the resulting data1 - tree
159 doesn't refer to any parts of the "SGML"-buffer.
161 Fixed bug in server library (Windows version of statserv_remove).
163 * Changed code so that it compiles as C++. The type definition
164 of Odr_fun which is a member of Odr_arm was changed. The result is,
165 that an explicit typecast is needed for the fun pointer when
166 using Odr_arm - as in:
167 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
169 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
171 Implemented the new structured date and time definition as approved
172 by the ZIG. Added schemaId element to the specificTag in Espec-1
173 (also approved at the last ZIG). Thanks to RVDM.
175 Added some Object identifiers (RVDM).
177 Changed the Update Extended Service (RVDM).
179 Added command "refid" to client which specifies referenceId for
180 the following requests.
182 Implemented extended service handling for server. See ztest.c
183 for an example as well as backend.h. New handlers are registerd
186 * Changed interface for sort in server.
188 Added new members to statserv_options_block. It allows a server
189 to read options from another source than just the command line. Thanks
190 to Charles Woodfield.
192 * Changed definition of Z_Triple in file prt-grs.h - member boolean
193 renamed to zboolean. Some C++ compilers complained about the name.
195 Minor changes to gils.abs. Added index 's' (sort) on title
196 and date/time-last-modified.
200 Fixed bug in server library regarding inetd mode (-i). This bug
201 was introduced by release 1.4.
205 Added sort facility in client and backend server interface.
207 Fixed problem with dependencies in Makefile(s).
209 Fixed bugs for encoders/decoders of extended services and
212 Implemented sub-tree feature for schemas. Sub-trees are
213 referenced in *.abs-files. See explain.abs for an example
214 of the use of this feature.
216 Modified bib1.att; local attributes for ANY didn't include
217 ANY itself (only affects use of the retrieval module).
219 Fixed bug in plain SGML reader in function data1_read_node:
220 tags with prefix "var" was incorrectly interpreted as variants.
222 Added feature "sub-schemas" to enable references to - and definitions
223 of - group of elements.
225 * Removed member parent from type data1_element (in data1.h).
227 Implemented function odr_nullval() that returns the value of
230 * Removed member num_children from data1_node (in data1.h).
232 Made NT service interface part of the server library. The
233 function statserv_main uses the NT service when required and
234 calls the statserv_start / statserv_close routines.
236 Routine zget_SearchRequest and zget_PresentRequest fills
237 resultSetName/Id member with "default" instead of "Default".
239 Fixed memory leak in server. Request queue member wasn't freed.
241 Fixed nmem_exit so that memory is freed.
245 Revised the CCL parser utility to be thread safe.
247 Added function, oid_ent_to_oid, to replace the function
248 oid_getoidbyent, which is not thread safe.
250 * Added nmem_init and nmem_exit to initialize and release
251 NMEM resources. Function nmem_init should be called once in the
252 initial thread before NMEM/ODR is used. statserv.c and client.c
253 have been changed accordingly. The change was necessary to make
254 NMEM thread safe. The NMEM memory pool is shared amongst threads
255 in a process. Unix-based applications will still work fine without
258 Added NT Services interface for the the Z39.50 (statserv) Server.
259 Refer to the ztest.c source on the usage.
261 Windows 95/NT port using MSVC5.0. Project files are included in the
264 * Defined new 'global' handle for the retrieval (data1) system. The
265 new handled, data1_handle, describes the state of the data1 system.
266 This handle is passed as first argument to virtually all
267 data1 related routines. The functions data1_create and data1_destroy
268 creates and destroys a data1 handle respectively.
270 Added ODR encode stream member to all backend request structures
271 init, search, scan etc. This stream should be used to allocate all
272 memory used for the response when thread safe operation is needed.
274 Changed the comstack utility, cs_addstr, to be thread safe. The
275 returned hostname string returned by the function is now part the
278 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
279 function. The cs_straddr takes a COMSTACK handle as argument, so this
280 function must be used after cs_create and before bind/connect.
281 This function is thread safe.
283 Moved test server to 'ztest' directory - generic server code still
284 in 'server' directory.
286 Made prefix query (pquery.c) utility thread safe.
288 Added new function modifier YAZ_EXPORT to 'export' public DLL
289 functions when using windows (see include/yconfig.h).
291 Added definitions to the OID database (util/oid.c) (RVDM).
293 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
295 Added call to ccl_rpn_delete in client program.
297 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
298 release of RPN structure.
300 Added support for C++, headers uses extern "C" for public definitions.
301 With input from RVDM.
303 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
304 Thanks to Ronald van der Meer (RVDM).
306 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
308 Added support for private extensions to the OID database
309 (oid_setprivateoids()). Thanks to RVDM.
311 Added optional, physical ANY (key replication)
313 Fixed null-reference problem in GRS-1 output filter.
315 Proximity operator added to Prefix Query Format (PQF).
317 In test client command "base" accepts multiple databases.
319 Fixed bug in cs_close stack that caused trouble with WINSOCK.
323 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
325 Smallish bug-fixes in the new encoders/decoders (explain).
327 Bug fixed in DeleteRequest.
329 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
331 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
333 Added SOIF syntax (using private OID for now) to retrieval module and client.
335 Added Update extended service.
337 Added SearchResult-1 additional info structure.
339 Added optional CCL (ISO8777) interpreter as separate module. Available
342 --- 1.2 1996/6/10 (1st anniversary release)
344 Added Summary record syntax. Lightly tested.
346 Added OPAC record syntax. Untested.
348 Added ResourceReport service encoders/decoders. Untested.
350 Fixed bug in z_Unit - wrong tagging on unitSystem.
352 Fixed bug in the DiagRecs decoder.
354 Added options for max PDU size and session timeout to frontend-server.
356 Added documentation of query-language parsers and other supporting utilities.
358 [frontend-server] Added Attribute set to the bend_scanrequest API.
360 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
361 surrogate diagnostics were generated.
363 [retrieval] Allow multiple local values for attribute.
365 [retrieval] Allow multiple attributes per element in .abs files. index type.
367 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
371 Minor changes, mostly specific to Zebra's requirements (retrieval)
375 Repaired bug in frontend server when running multiple listening
376 endpoints in dynamic mode.
378 z_External() now won't break if a known, ASN.1 value comes encapsulated
379 in an octet-string. The value will pass through unmodified in an Odr_oct.
381 Added a bit of code to the demo client to decode & display
382 ASN.1-structured records represented in the octet-aligned branch of
383 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
385 Added z_ext_getentbyref() to the ASN module. Doc updated.
387 * Completed the SCAN definition in the ASN module. This may break SCAN
388 code based on older YAZ-versions at compile-time. The fix is easy -
391 * Added 'displayTerm' and OtherInformation to the TermInfo structure
392 under the SCAN definition. Remember to initialize this, server-people.
394 Comstack should now support the WAIS protocol in TCP/IP mode. Note
395 that this does not extend to ODR and ASN.
397 Comstack allows insertion of established socket (primarily for
398 inetd-operation of servers). Doc updated.
400 Front-end server can now start from the inetd in TCP mode. Doc
407 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
408 the rank and record number.
410 Adjustments to the frontend server.
412 Fixed diagnostic BER dumper. It ignored the file argument.
416 Various changes to retrieval module.
418 Changed the union discriminators of the protocol files from enums to
419 ints paired with #defines.
421 *Changed oident.class to oident.oclass to avoid a reserved word in C++
424 *Changed operator in the RPN structure to 'roperator', again to avoid a
427 Fixed problems in Explain decoders/encoders.
431 Memory bug in log module fixed.
435 Occasional malloc() of 0 bytes fixed in d1_espec.c.
437 Bug in Explain DatabaseInfo module fixed.
439 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
443 The shift to v1.0 signals that we now consider the *core* functionality
444 of YAZ reasonably stable (the core being more or less equivalent to
445 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
446 tested (Explain not at all - though that will happen soonish).
448 Minor changes to code to support Windows port.
450 Various minor changes after we're getting to use GRS-1 & co. more.
452 Added Espec-1 format.
454 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
455 of the protocol and it cannot be selected when encoding (maps into 'string'
456 when decoding). Needed to talk to some servers.
458 Demo client can request simple element set names.
460 Added Diagnostic Format encoders/decoders.
462 Added simple Close handling to frontend server (no hooks for resource
463 reporting yet), and demonstration client.
465 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
469 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
470 handled incorrectly when records were requested in the searchResponse. This
471 will only affect you if you use the frontend-server.
473 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
474 Test-client will ask for and print GRS1. Ztest will return dummy records
477 Added Explain encoders/decoders to the service-level API. Untested.
479 Added Extended Services: Item Order encoders and decoders to the Service-
480 level API. Untested. We could use a recent copy of the pertinent bits
481 of the ILL protocol to add those bits.
483 Added diagnostic format 1 encoders/decoders to the service-level API.
486 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
487 odr_cons.c, which causes a more correct output.
489 Fixed handling of searchRequest in frontend server. NextResultSetPosition
490 was always set to 0 when no records were requested in the searchRequest.
492 * Added better external-handling. This shouldn't harm old code that
493 *encodes* externals. It can break code that looks for a
494 'single-ASN1-type' representation, since those types that are known
495 are now decoded immediately. Look at the SUTRS sample code in
496 seshigh.c and client.c. Documentation updated.
498 Handling of structured records in bend_fetchresponse. Length -1 marks
499 structured record, type is deduced from format field.
502 Fairly quick maintenance release to add SUTRS support.
504 Fixed handling of SUTRS records in the demonstration client.
506 * Added format field to the bend_fetchrequest and bend_fetchresponce
507 structures of the backend API (frontend server). When the record is
508 returned, the value of the format field is mapped to an OID. The
509 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
510 of the record. The special value VAL_NONE in the bend_request means
511 that no specific format was requested by the client. Documentation
512 updated accordingly. Test server (ztest) will return a fixed dummy
513 SUTRS record if your client requests SUTRS.
515 Documentation updated accordingly.
517 You can now set external libraries and RANLIB support in the top-level
521 First public release.