1 Possible compatibility problems with earlier versions marked with '*'.
3 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
7 On UNIX, the generated makefile now supports a proper 'make install'.
8 The prefix can be set via GNU configure to set the install location
9 (default is /usr/local).
11 * YAZ programs client and ztest were renamed to yaz-client and
12 yaz-ztest to avoid conflicts when users install YAZ in "standard"
13 locations, such as /usr/bin,/usr/local/bin,etc.
15 * YAZ Header files were moved from include to include/yaz. YAZ Header
16 files are referred to as include <yaz/log.h> rather than <log.h>.
17 The YAZ include path (-I ..) is therefore the same as before. Programmers
18 should update their #include statements or use -Ipath/include/yaz
19 instead. The main motivation for doing this change is that YAZ header files
20 can be installed in "standard" locations /usr/include,/usr/local/include
21 without introducing conflicts, since ALL YAZ header files are stored
22 in subdirectory yaz (under /usr/include for example).
24 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
25 rather than project/workspace files. We switched because project files
26 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
29 Changed name of logging function, logf, to yaz_log, to prevent name
30 clash with some math-log functions. The YAZ header log.h defines logf
31 to yaz_log (#define) so there should be no incompatibilities by this
34 Added bend_start/bend_stop handlers for server. These handler are
35 called on start/stop of server. For windows they are called whenever
36 a service is started/stopped.
38 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
39 a fairly small ASN.1 compiler written in Tcl. The compiler is located
40 in util/yc.tcl. The auto-generated C code structures are, in a few
41 cases, incompatible with the old decoders. There are differences in the
42 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
43 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
44 The preprocessor variable ASN_COMPILED is defined when the compiled
45 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
46 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
47 wish to use the old encoders/decoders you can specify --disable-yc
50 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
51 version so that it supports both new - and old version of DB Update
53 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
54 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
55 change. The name parameter can be set to 0 in which no name is specified
56 for the construction. The macros odr_implicit and odr_explicit sets name
57 parameter to zero for the construction involved. New macros
58 odr_implicit_tag and odr_explicit_tag are similar to the others,
59 except that a name parameter is added. For programmers' that don't use
60 ODR they probably only need to change the call to z_APDU and z_External.
62 Added access control facility by interfacing the TCP wrapper library.
63 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
64 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
65 name of the daemon and enables the access control as specified in
66 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
68 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
69 den Dool <H.M.vdnDool@kub.nl>.
71 Added reference ID parameter to most functions in server API - refer
72 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
74 Changed name of ccl library to libccl.a (was ccl.a).
76 Fixed bug in decoder for Explain (Category TargetInfo).
78 Added support for GNU readline in client. Thanks to Jacob Poulsen
79 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
81 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
82 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
83 IMPLEMENTATION! This change was made to the development version before
84 the ZIG decided to retract the amendment. If any users MUST be
85 compatible with the original Update definition, PLEASE CONTACT US, and
86 we will include a separate definition corresponding to the old Update
87 ES. Note that because of the change to the ASN.1 of the
88 TaskPackageRecordStructure we cannot define a single structure that
89 will support both versions.
91 * Added const modifier to buffer parameter for some ODR/BER encoding
92 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
93 completeWAIS, odr_dumpBER.
95 Fixed bug in client.c which caused a crash when a scanResponse didn't
96 contain positionOfTerm.
98 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
99 * will cause an error in a client if a non-YAZ target sends both a
100 * list of Scan entries and non-surrogate diagnostics.
102 Retrieval module enhancements. Tag sets may be typed in the reference
103 to it. From the .abs-file the "tagset" directive takes a third optional
104 integer type for the tag set referenced. From a .tag-file the "include"
105 directive takes a third optional type as well. The old "type" directive
106 in the tag set itself is still recognized but acts as the default type
109 Backend interface change. Individual Scan terms returned from bend_scan
110 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
111 in include/backend.h.
113 Retrieval module enhancements. Multiple tag sets and attribute sets may
114 be specified in abstract syntax specs. Revised the error/warning for
115 logging messages reported by the retrieval module when reading the
118 Object Identifier system (oid_..) changed. The API is backwards
119 compatible but the oid-routines now allocates new OID's when needed.
120 Raw OID's may be specified in oid_getvalbyname.
122 YAZ now uses GNU configure to generate Makefile(s).
124 * Minor changes in some of the member names of DeleteResultSetRequest and
125 DeleteResultSetResponse. See include/proto.h.
127 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
128 and added member 'languages' in TargetInfo (which was missing).
130 Changed the way attribute sets are handled in the retrieval
131 module. These are now cached, just like the abstract syntaxes
134 Changed YAZ so that it links with compiled ASN.1.
136 Added Explain-schema definitions and mapping routines. The following
137 Explain categories have been implemented: AttributeDetails,
138 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
140 Fixed minor bug in Windows version of Server Library.
142 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
144 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
146 Added EXTERNAL: UNIverse Resource Report (non-standard).
148 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
149 ENUMERATED and SET OF.
151 * Added 'const' to some of the char pointer arguments for the
152 functions, data1_read_node, data1_getelementbytagname,
153 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
156 Fixed bug in data1_insert_taggeddata - the last_child member of
157 parent wasn't initialised.
159 * Changed data1_read_record and data1_read_node so that the supplied
160 "SGML"-buffer is read-only. In particular the resulting data1 - tree
161 doesn't refer to any parts of the "SGML"-buffer.
163 Fixed bug in server library (Windows version of statserv_remove).
165 * Changed code so that it compiles as C++. The type definition
166 of Odr_fun which is a member of Odr_arm was changed. The result is,
167 that an explicit typecast is needed for the fun pointer when
168 using Odr_arm - as in:
169 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
171 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
173 Implemented the new structured date and time definition as approved
174 by the ZIG. Added schemaId element to the specificTag in Espec-1
175 (also approved at the last ZIG). Thanks to RVDM.
177 Added some Object identifiers (RVDM).
179 Changed the Update Extended Service (RVDM).
181 Added command "refid" to client which specifies referenceId for
182 the following requests.
184 Implemented extended service handling for server. See ztest.c
185 for an example as well as backend.h. New handlers are registerd
188 * Changed interface for sort in server.
190 Added new members to statserv_options_block. It allows a server
191 to read options from another source than just the command line. Thanks
192 to Charles Woodfield.
194 * Changed definition of Z_Triple in file prt-grs.h - member boolean
195 renamed to zboolean. Some C++ compilers complained about the name.
197 Minor changes to gils.abs. Added index 's' (sort) on title
198 and date/time-last-modified.
202 Fixed bug in server library regarding inetd mode (-i). This bug
203 was introduced by release 1.4.
207 Added sort facility in client and backend server interface.
209 Fixed problem with dependencies in Makefile(s).
211 Fixed bugs for encoders/decoders of extended services and
214 Implemented sub-tree feature for schemas. Sub-trees are
215 referenced in *.abs-files. See explain.abs for an example
216 of the use of this feature.
218 Modified bib1.att; local attributes for ANY didn't include
219 ANY itself (only affects use of the retrieval module).
221 Fixed bug in plain SGML reader in function data1_read_node:
222 tags with prefix "var" was incorrectly interpreted as variants.
224 Added feature "sub-schemas" to enable references to - and definitions
225 of - group of elements.
227 * Removed member parent from type data1_element (in data1.h).
229 Implemented function odr_nullval() that returns the value of
232 * Removed member num_children from data1_node (in data1.h).
234 Made NT service interface part of the server library. The
235 function statserv_main uses the NT service when required and
236 calls the statserv_start / statserv_close routines.
238 Routine zget_SearchRequest and zget_PresentRequest fills
239 resultSetName/Id member with "default" instead of "Default".
241 Fixed memory leak in server. Request queue member wasn't freed.
243 Fixed nmem_exit so that memory is freed.
247 Revised the CCL parser utility to be thread safe.
249 Added function, oid_ent_to_oid, to replace the function
250 oid_getoidbyent, which is not thread safe.
252 * Added nmem_init and nmem_exit to initialize and release
253 NMEM resources. Function nmem_init should be called once in the
254 initial thread before NMEM/ODR is used. statserv.c and client.c
255 have been changed accordingly. The change was necessary to make
256 NMEM thread safe. The NMEM memory pool is shared amongst threads
257 in a process. Unix-based applications will still work fine without
260 Added NT Services interface for the the Z39.50 (statserv) Server.
261 Refer to the ztest.c source on the usage.
263 Windows 95/NT port using MSVC5.0. Project files are included in the
266 * Defined new 'global' handle for the retrieval (data1) system. The
267 new handled, data1_handle, describes the state of the data1 system.
268 This handle is passed as first argument to virtually all
269 data1 related routines. The functions data1_create and data1_destroy
270 creates and destroys a data1 handle respectively.
272 Added ODR encode stream member to all backend request structures
273 init, search, scan etc. This stream should be used to allocate all
274 memory used for the response when thread safe operation is needed.
276 Changed the comstack utility, cs_addstr, to be thread safe. The
277 returned hostname string returned by the function is now part the
280 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
281 function. The cs_straddr takes a COMSTACK handle as argument, so this
282 function must be used after cs_create and before bind/connect.
283 This function is thread safe.
285 Moved test server to 'ztest' directory - generic server code still
286 in 'server' directory.
288 Made prefix query (pquery.c) utility thread safe.
290 Added new function modifier YAZ_EXPORT to 'export' public DLL
291 functions when using windows (see include/yconfig.h).
293 Added definitions to the OID database (util/oid.c) (RVDM).
295 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
297 Added call to ccl_rpn_delete in client program.
299 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
300 release of RPN structure.
302 Added support for C++, headers uses extern "C" for public definitions.
303 With input from RVDM.
305 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
306 Thanks to Ronald van der Meer (RVDM).
308 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
310 Added support for private extensions to the OID database
311 (oid_setprivateoids()). Thanks to RVDM.
313 Added optional, physical ANY (key replication)
315 Fixed null-reference problem in GRS-1 output filter.
317 Proximity operator added to Prefix Query Format (PQF).
319 In test client command "base" accepts multiple databases.
321 Fixed bug in cs_close stack that caused trouble with WINSOCK.
325 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
327 Smallish bug-fixes in the new encoders/decoders (explain).
329 Bug fixed in DeleteRequest.
331 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
333 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
335 Added SOIF syntax (using private OID for now) to retrieval module and client.
337 Added Update extended service.
339 Added SearchResult-1 additional info structure.
341 Added optional CCL (ISO8777) interpreter as separate module. Available
344 --- 1.2 1996/6/10 (1st anniversary release)
346 Added Summary record syntax. Lightly tested.
348 Added OPAC record syntax. Untested.
350 Added ResourceReport service encoders/decoders. Untested.
352 Fixed bug in z_Unit - wrong tagging on unitSystem.
354 Fixed bug in the DiagRecs decoder.
356 Added options for max PDU size and session timeout to frontend-server.
358 Added documentation of query-language parsers and other supporting utilities.
360 [frontend-server] Added Attribute set to the bend_scanrequest API.
362 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
363 surrogate diagnostics were generated.
365 [retrieval] Allow multiple local values for attribute.
367 [retrieval] Allow multiple attributes per element in .abs files. index type.
369 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
373 Minor changes, mostly specific to Zebra's requirements (retrieval)
377 Repaired bug in frontend server when running multiple listening
378 endpoints in dynamic mode.
380 z_External() now won't break if a known, ASN.1 value comes encapsulated
381 in an octet-string. The value will pass through unmodified in an Odr_oct.
383 Added a bit of code to the demo client to decode & display
384 ASN.1-structured records represented in the octet-aligned branch of
385 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
387 Added z_ext_getentbyref() to the ASN module. Doc updated.
389 * Completed the SCAN definition in the ASN module. This may break SCAN
390 code based on older YAZ-versions at compile-time. The fix is easy -
393 * Added 'displayTerm' and OtherInformation to the TermInfo structure
394 under the SCAN definition. Remember to initialize this, server-people.
396 Comstack should now support the WAIS protocol in TCP/IP mode. Note
397 that this does not extend to ODR and ASN.
399 Comstack allows insertion of established socket (primarily for
400 inetd-operation of servers). Doc updated.
402 Front-end server can now start from the inetd in TCP mode. Doc
409 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
410 the rank and record number.
412 Adjustments to the frontend server.
414 Fixed diagnostic BER dumper. It ignored the file argument.
418 Various changes to retrieval module.
420 Changed the union discriminators of the protocol files from enums to
421 ints paired with #defines.
423 *Changed oident.class to oident.oclass to avoid a reserved word in C++
426 *Changed operator in the RPN structure to 'roperator', again to avoid a
429 Fixed problems in Explain decoders/encoders.
433 Memory bug in log module fixed.
437 Occasional malloc() of 0 bytes fixed in d1_espec.c.
439 Bug in Explain DatabaseInfo module fixed.
441 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
445 The shift to v1.0 signals that we now consider the *core* functionality
446 of YAZ reasonably stable (the core being more or less equivalent to
447 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
448 tested (Explain not at all - though that will happen soonish).
450 Minor changes to code to support Windows port.
452 Various minor changes after we're getting to use GRS-1 & co. more.
454 Added Espec-1 format.
456 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
457 of the protocol and it cannot be selected when encoding (maps into 'string'
458 when decoding). Needed to talk to some servers.
460 Demo client can request simple element set names.
462 Added Diagnostic Format encoders/decoders.
464 Added simple Close handling to frontend server (no hooks for resource
465 reporting yet), and demonstration client.
467 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
471 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
472 handled incorrectly when records were requested in the searchResponse. This
473 will only affect you if you use the frontend-server.
475 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
476 Test-client will ask for and print GRS1. Ztest will return dummy records
479 Added Explain encoders/decoders to the service-level API. Untested.
481 Added Extended Services: Item Order encoders and decoders to the Service-
482 level API. Untested. We could use a recent copy of the pertinent bits
483 of the ILL protocol to add those bits.
485 Added diagnostic format 1 encoders/decoders to the service-level API.
488 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
489 odr_cons.c, which causes a more correct output.
491 Fixed handling of searchRequest in frontend server. NextResultSetPosition
492 was always set to 0 when no records were requested in the searchRequest.
494 * Added better external-handling. This shouldn't harm old code that
495 *encodes* externals. It can break code that looks for a
496 'single-ASN1-type' representation, since those types that are known
497 are now decoded immediately. Look at the SUTRS sample code in
498 seshigh.c and client.c. Documentation updated.
500 Handling of structured records in bend_fetchresponse. Length -1 marks
501 structured record, type is deduced from format field.
504 Fairly quick maintenance release to add SUTRS support.
506 Fixed handling of SUTRS records in the demonstration client.
508 * Added format field to the bend_fetchrequest and bend_fetchresponce
509 structures of the backend API (frontend server). When the record is
510 returned, the value of the format field is mapped to an OID. The
511 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
512 of the record. The special value VAL_NONE in the bend_request means
513 that no specific format was requested by the client. Documentation
514 updated accordingly. Test server (ztest) will return a fixed dummy
515 SUTRS record if your client requests SUTRS.
517 Documentation updated accordingly.
519 You can now set external libraries and RANLIB support in the top-level
523 First public release.