1 Possible compatibility problems with earlier versions marked with '*'.
3 Added bend_start/bend_stop handlers for server. These handler
4 are called on start/stop of server. For windows they are called
5 whenever service is started/stopped.
7 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
8 version so that it supports both new - and old version of DB Update
10 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
11 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
12 change. The name parameter can be set to 0 in which no name is specified
13 for the construction. The macros odr_implicit and odr_explicit sets name
14 parameter to zero for the construction involved. New macros
15 odr_implicit_tag and odr_explicit_tag are similar to the others,
16 except that a name parameter is added. For programmers' that don't use
17 ODR they probably only need to change the call to z_APDU and z_External.
19 Added access control facility by interfacing the TCP wrapper library.
20 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
21 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
22 name of the daemon and enables the access control as specified in
23 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
25 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
26 den Dool <H.M.vdnDool@kub.nl>.
28 Added reference ID parameter to most functions in server API - refer
29 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
31 Changed name of ccl library to libccl.a (was ccl.a).
33 Fixed bug in decoder for Explain (Category TargetInfo).
35 Added support for GNU readline in client. Thanks to Jacob Poulsen
36 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
38 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
39 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
40 IMPLEMENTATION! This change was made to the development version before
41 the ZIG decided to retract the amendment. If any users MUST be
42 compatible with the original Update definition, PLEASE CONTACT US, and
43 we will include a separate definition corresponding to the old Update
44 ES. Note that because of the change to the ASN.1 of the
45 TaskPackageRecordStructure we cannot define a single structure that
46 will support both versions.
48 * Added const modifier to buffer parameter for some ODR/BER encoding
49 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
50 completeWAIS, odr_dumpBER.
52 Fixed bug in client.c which caused a crash when a scanResponse didn't
53 contain positionOfTerm.
55 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
56 * will cause an error in a client if a non-YAZ target sends both a
57 * list of Scan entries and non-surrogate diagnostics.
59 Retrieval module enhancements. Tag sets may be typed in the reference
60 to it. From the .abs-file the "tagset" directive takes a third optional
61 integer type for the tag set referenced. From a .tag-file the "include"
62 directive takes a third optional type as well. The old "type" directive
63 in the tag set itself is still recognized but acts as the default type
66 Backend interface change. Individual Scan terms returned from bend_scan
67 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
70 Retrieval module enhancements. Multiple tag sets and attribute sets may
71 be specified in abstract syntax specs. Revised the error/warning for
72 logging messages reported by the retrieval module when reading the
75 Object Identifier system (oid_..) changed. The API is backwards
76 compatible but the oid-routines now allocates new OID's when needed.
77 Raw OID's may be specified in oid_getvalbyname.
79 YAZ now uses GNU configure to generate Makefile(s).
81 * Minor changes in some of the member names of DeleteResultSetRequest and
82 DeleteResultSetResponse. See include/proto.h.
84 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
85 and added member 'languages' in TargetInfo (which was missing).
87 Changed the way attribute sets are handled in the retrieval
88 module. These are now cached, just like the abstract syntaxes
91 Changed YAZ so that it links with compiled ASN.1.
93 Added Explain-schema definitions and mapping routines. The following
94 Explain categories have been implemented: AttributeDetails,
95 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
97 Fixed minor bug in Windows version of Server Library.
99 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
101 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
103 Added EXTERNAL: UNIverse Resource Report (non-standard).
105 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
106 ENUMERATED and SET OF.
108 * Added 'const' to some of the char pointer arguments for the
109 functions, data1_read_node, data1_getelementbytagname,
110 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
113 Fixed bug in data1_insert_taggeddata - the last_child member of
114 parent wasn't initialised.
116 * Changed data1_read_record and data1_read_node so that the supplied
117 "SGML"-buffer is read-only. In particular the resulting data1 - tree
118 doesn't refer to any parts of the "SGML"-buffer.
120 Fixed bug in server library (Windows version of statserv_remove).
122 * Changed code so that it compiles as C++. The type definition
123 of Odr_fun which is a member of Odr_arm was changed. The result is,
124 that an explicit typecast is needed for the fun pointer when
125 using Odr_arm - as in:
126 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
128 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
130 Implemented the new structured date and time definition as approved
131 by the ZIG. Added schemaId element to the specificTag in Espec-1
132 (also approved at the last ZIG). Thanks to RVDM.
134 Added some Object identifiers (RVDM).
136 Changed the Update Extended Service (RVDM).
138 Added command "refid" to client which specifies referenceId for
139 the following requests.
141 Implemented extended service handling for server. See ztest.c
142 for an example as well as backend.h. New handlers are registerd
145 * Changed interface for sort in server.
147 Added new members to statserv_options_block. It allows a server
148 to read options from another source than just the command line. Thanks
149 to Charles Woodfield.
151 * Changed definition of Z_Triple in file prt-grs.h - member boolean
152 renamed to zboolean. Some C++ compilers complained about the name.
154 Minor changes to gils.abs. Added index 's' (sort) on title
155 and date/time-last-modified.
159 Fixed bug in server library regarding inetd mode (-i). This bug
160 was introduced by release 1.4.
164 Added sort facility in client and backend server interface.
166 Fixed problem with dependencies in Makefile(s).
168 Fixed bugs for encoders/decoders of extended services and
171 Implemented sub-tree feature for schemas. Sub-trees are
172 referenced in *.abs-files. See explain.abs for an example
173 of the use of this feature.
175 Modified bib1.att; local attributes for ANY didn't include
176 ANY itself (only affects use of the retrieval module).
178 Fixed bug in plain SGML reader in function data1_read_node:
179 tags with prefix "var" was incorrectly interpreted as variants.
181 Added feature "sub-schemas" to enable references to - and definitions
182 of - group of elements.
184 * Removed member parent from type data1_element (in data1.h).
186 Implemented function odr_nullval() that returns the value of
189 * Removed member num_children from data1_node (in data1.h).
191 Made NT service interface part of the server library. The
192 function statserv_main uses the NT service when required and
193 calls the statserv_start / statserv_close routines.
195 Routine zget_SearchRequest and zget_PresentRequest fills
196 resultSetName/Id member with "default" instead of "Default".
198 Fixed memory leak in server. Request queue member wasn't freed.
200 Fixed nmem_exit so that memory is freed.
204 Revised the CCL parser utility to be thread safe.
206 Added function, oid_ent_to_oid, to replace the function
207 oid_getoidbyent, which is not thread safe.
209 * Added nmem_init and nmem_exit to initialize and release
210 NMEM resources. Function nmem_init should be called once in the
211 initial thread before NMEM/ODR is used. statserv.c and client.c
212 have been changed accordingly. The change was necessary to make
213 NMEM thread safe. The NMEM memory pool is shared amongst threads
214 in a process. Unix-based applications will still work fine without
217 Added NT Services interface for the the Z39.50 (statserv) Server.
218 Refer to the ztest.c source on the usage.
220 Windows 95/NT port using MSVC5.0. Project files are included in the
223 * Defined new 'global' handle for the retrieval (data1) system. The
224 new handled, data1_handle, describes the state of the data1 system.
225 This handle is passed as first argument to virtually all
226 data1 related routines. The functions data1_create and data1_destroy
227 creates and destroys a data1 handle respectively.
229 Added ODR encode stream member to all backend request structures
230 init, search, scan etc. This stream should be used to allocate all
231 memory used for the response when thread safe operation is needed.
233 Changed the comstack utility, cs_addstr, to be thread safe. The
234 returned hostname string returned by the function is now part the
237 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
238 function. The cs_straddr takes a COMSTACK handle as argument, so this
239 function must be used after cs_create and before bind/connect.
240 This function is thread safe.
242 Moved test server to 'ztest' directory - generic server code still
243 in 'server' directory.
245 Made prefix query (pquery.c) utility thread safe.
247 Added new function modifier YAZ_EXPORT to 'export' public DLL
248 functions when using windows (see include/yconfig.h).
250 Added definitions to the OID database (util/oid.c) (RVDM).
252 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
254 Added call to ccl_rpn_delete in client program.
256 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
257 release of RPN structure.
259 Added support for C++, headers uses extern "C" for public definitions.
260 With input from RVDM.
262 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
263 Thanks to Ronald van der Meer (RVDM).
265 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
267 Added support for private extensions to the OID database
268 (oid_setprivateoids()). Thanks to RVDM.
270 Added optional, physical ANY (key replication)
272 Fixed null-reference problem in GRS-1 output filter.
274 Proximity operator added to Prefix Query Format (PQF).
276 In test client command "base" accepts multiple databases.
278 Fixed bug in cs_close stack that caused trouble with WINSOCK.
282 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
284 Smallish bug-fixes in the new encoders/decoders (explain).
286 Bug fixed in DeleteRequest.
288 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
290 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
292 Added SOIF syntax (using private OID for now) to retrieval module and client.
294 Added Update extended service.
296 Added SearchResult-1 additional info structure.
298 Added optional CCL (ISO8777) interpreter as separate module. Available
301 --- 1.2 1996/6/10 (1st anniversary release)
303 Added Summary record syntax. Lightly tested.
305 Added OPAC record syntax. Untested.
307 Added ResourceReport service encoders/decoders. Untested.
309 Fixed bug in z_Unit - wrong tagging on unitSystem.
311 Fixed bug in the DiagRecs decoder.
313 Added options for max PDU size and session timeout to frontend-server.
315 Added documentation of query-language parsers and other supporting utilities.
317 [frontend-server] Added Attribute set to the bend_scanrequest API.
319 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
320 surrogate diagnostics were generated.
322 [retrieval] Allow multiple local values for attribute.
324 [retrieval] Allow multiple attributes per element in .abs files. index type.
326 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
330 Minor changes, mostly specific to Zebra's requirements (retrieval)
334 Repaired bug in frontend server when running multiple listening
335 endpoints in dynamic mode.
337 z_External() now won't break if a known, ASN.1 value comes encapsulated
338 in an octet-string. The value will pass through unmodified in an Odr_oct.
340 Added a bit of code to the demo client to decode & display
341 ASN.1-structured records represented in the octet-aligned branch of
342 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
344 Added z_ext_getentbyref() to the ASN module. Doc updated.
346 * Completed the SCAN definition in the ASN module. This may break SCAN
347 code based on older YAZ-versions at compile-time. The fix is easy -
350 * Added 'displayTerm' and OtherInformation to the TermInfo structure
351 under the SCAN definition. Remember to initialize this, server-people.
353 Comstack should now support the WAIS protocol in TCP/IP mode. Note
354 that this does not extend to ODR and ASN.
356 Comstack allows insertion of established socket (primarily for
357 inetd-operation of servers). Doc updated.
359 Front-end server can now start from the inetd in TCP mode. Doc
366 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
367 the rank and record number.
369 Adjustments to the frontend server.
371 Fixed diagnostic BER dumper. It ignored the file argument.
375 Various changes to retrieval module.
377 Changed the union discriminators of the protocol files from enums to
378 ints paired with #defines.
380 *Changed oident.class to oident.oclass to avoid a reserved word in C++
383 *Changed operator in the RPN structure to 'roperator', again to avoid a
386 Fixed problems in Explain decoders/encoders.
390 Memory bug in log module fixed.
394 Occasional malloc() of 0 bytes fixed in d1_espec.c.
396 Bug in Explain DatabaseInfo module fixed.
398 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
402 The shift to v1.0 signals that we now consider the *core* functionality
403 of YAZ reasonably stable (the core being more or less equivalent to
404 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
405 tested (Explain not at all - though that will happen soonish).
407 Minor changes to code to support Windows port.
409 Various minor changes after we're getting to use GRS-1 & co. more.
411 Added Espec-1 format.
413 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
414 of the protocol and it cannot be selected when encoding (maps into 'string'
415 when decoding). Needed to talk to some servers.
417 Demo client can request simple element set names.
419 Added Diagnostic Format encoders/decoders.
421 Added simple Close handling to frontend server (no hooks for resource
422 reporting yet), and demonstration client.
424 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
428 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
429 handled incorrectly when records were requested in the searchResponse. This
430 will only affect you if you use the frontend-server.
432 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
433 Test-client will ask for and print GRS1. Ztest will return dummy records
436 Added Explain encoders/decoders to the service-level API. Untested.
438 Added Extended Services: Item Order encoders and decoders to the Service-
439 level API. Untested. We could use a recent copy of the pertinent bits
440 of the ILL protocol to add those bits.
442 Added diagnostic format 1 encoders/decoders to the service-level API.
445 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
446 odr_cons.c, which causes a more correct output.
448 Fixed handling of searchRequest in frontend server. NextResultSetPosition
449 was always set to 0 when no records were requested in the searchRequest.
451 * Added better external-handling. This shouldn't harm old code that
452 *encodes* externals. It can break code that looks for a
453 'single-ASN1-type' representation, since those types that are known
454 are now decoded immediately. Look at the SUTRS sample code in
455 seshigh.c and client.c. Documentation updated.
457 Handling of structured records in bend_fetchresponse. Length -1 marks
458 structured record, type is deduced from format field.
461 Fairly quick maintenance release to add SUTRS support.
463 Fixed handling of SUTRS records in the demonstration client.
465 * Added format field to the bend_fetchrequest and bend_fetchresponce
466 structures of the backend API (frontend server). When the record is
467 returned, the value of the format field is mapped to an OID. The
468 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
469 of the record. The special value VAL_NONE in the bend_request means
470 that no specific format was requested by the client. Documentation
471 updated accordingly. Test server (ztest) will return a fixed dummy
472 SUTRS record if your client requests SUTRS.
474 Documentation updated accordingly.
476 You can now set external libraries and RANLIB support in the top-level
480 First public release.