1 Possible compatibility problems with earlier versions marked with '*'.
3 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
5 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
7 Added EXTERNAL: UNIverse Resource Report (non-standard).
9 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
10 ENUMERATED and SET OF.
12 * Added 'const' to some of the char pointer arguments for the
13 functions, data1_read_node, data1_getelementbytagname,
14 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
17 Fixed bug in data1_insert_taggeddata - the last_child member of
18 parent wasn't initialised.
20 * Changed data1_read_record and data1_read_node so that the supplied
21 "SGML"-buffer is read-only. In particular the resulting data1 - tree
22 doesn't refer to any parts of the "SGML"-buffer.
24 Fixed bug in server library (Windows version of statserv_remove).
26 * Changed code so that it compiles as C++. The type definition
27 of Odr_fun which is a member of Odr_arm was changed. The result is,
28 that an explicit typecast is needed for the fun pointer when
29 using Odr_arm - as in:
30 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
32 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
34 Implemented the new structured date and time definition as approved
35 by the ZIG. Added schemaId element to the specificTag in Espec-1
36 (also approved at the last ZIG). Thanks to RVDM.
38 Added some Object identifiers (RVDM).
40 Changed the Update Extended Service (RVDM).
42 Added command "refid" to client which specifies referenceId for
43 the following requests.
45 Implemented extended service handling for server. See ztest.c
46 for an example as well as backend.h. New handlers are registerd
49 * Changed interface for sort in server.
51 Added new members to statserv_options_block. It allows a server
52 to read options from another source than just the command line. Thanks
55 * Changed definition of Z_Triple in file prt-grs.h - member boolean
56 renamed to zboolean. Some C++ compilers complained about the name.
58 Minor changes to gils.abs. Added index 's' (sort) on title
59 and date/time-last-modified.
63 Fixed bug in server library regarding inetd mode (-i). This bug
64 was introduced by release 1.4.
68 Added sort facility in client and backend server interface.
70 Fixed problem with dependencies in Makefile(s).
72 Fixed bugs for encoders/decoders of extended services and
75 Implemented sub-tree feature for schemas. Sub-trees are
76 referenced in *.abs-files. See explain.abs for an example
77 of the use of this feature.
79 Modified bib1.att; local attributes for ANY didn't include
80 ANY itself (only affects use of the retrieval module).
82 Fixed bug in plain SGML reader in function data1_read_node:
83 tags with prefix "var" was incorrectly interpreted as variants.
85 Added feature "sub-schemas" to enable references to - and definitions
86 of - group of elements.
88 * Removed member parent from type data1_element (in data1.h).
90 Implemented function odr_nullval() that returns the value of
93 * Removed member num_children from data1_node (in data1.h).
95 Made NT service interface part of the server library. The
96 function statserv_main uses the NT service when required and
97 calls the statserv_start / statserv_close routines.
99 Routine zget_SearchRequest and zget_PresentRequest fills
100 resultSetName/Id member with "default" instead of "Default".
102 Fixed memory leak in server. Request queue member wasn't freed.
104 Fixed nmem_exit so that memory is freed.
108 Revised the CCL parser utility to be thread safe.
110 Added function, oid_ent_to_oid, to replace the function
111 oid_getoidbyent, which is not thread safe.
113 * Added nmem_init and nmem_exit to initialize and release
114 NMEM resources. Function nmem_init should be called once in the
115 initial thread before NMEM/ODR is used. statserv.c and client.c
116 have been changed accordingly. The change was necessary to make
117 NMEM thread safe. The NMEM memory pool is shared amongst threads
118 in a process. Unix-based applications will still work fine without
121 Added NT Services interface for the the Z39.50 (statserv) Server.
122 Refer to the ztest.c source on the usage.
124 Windows 95/NT port using MSVC5.0. Project files are included in the
127 * Defined new 'global' handle for the retrieval (data1) system. The
128 new handled, data1_handle, describes the state of the data1 system.
129 This handle is passed as first argument to virtually all
130 data1 related routines. The functions data1_create and data1_destroy
131 creates and destroys a data1 handle respectively.
133 Added ODR encode stream member to all backend request structures
134 init, search, scan etc. This stream should be used to allocate all
135 memory used for the response when thread safe operation is needed.
137 Changed the comstack utility, cs_addstr, to be thread safe. The
138 returned hostname string returned by the function is now part the
141 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
142 function. The cs_straddr takes a COMSTACK handle as argument, so this
143 function must be used after cs_create and before bind/connect.
144 This function is thread safe.
146 Moved test server to 'ztest' directory - generic server code still
147 in 'server' directory.
149 Made prefix query (pquery.c) utility thread safe.
151 Added new function modifier YAZ_EXPORT to 'export' public DLL
152 functions when using windows (see include/yconfig.h).
154 Added definitions to the OID database (util/oid.c) (RVDM).
156 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
158 Added call to ccl_rpn_delete in client program.
160 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
161 release of RPN structure.
163 Added support for C++, headers uses extern "C" for public definitions.
164 With input from RVDM.
166 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
167 Thanks to Ronald van der Meer (RVDM).
169 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
171 Added support for private extensions to the OID database
172 (oid_setprivateoids()). Thanks to RVDM.
174 Added optional, physical ANY (key replication)
176 Fixed null-reference problem in GRS-1 output filter.
178 Proximity operator added to Prefix Query Format (PQF).
180 In test client command "base" accepts multiple databases.
182 Fixed bug in cs_close stack that caused trouble with WINSOCK.
186 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
188 Smallish bug-fixes in the new encoders/decoders (explain).
190 Bug fixed in DeleteRequest.
192 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
194 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
196 Added SOIF syntax (using private OID for now) to retrieval module and client.
198 Added Update extended service.
200 Added SearchResult-1 additional info structure.
202 Added optional CCL (ISO8777) interpreter as separate module. Available
205 --- 1.2 1996/6/10 (1st anniversary release)
207 Added Summary record syntax. Lightly tested.
209 Added OPAC record syntax. Untested.
211 Added ResourceReport service encoders/decoders. Untested.
213 Fixed bug in z_Unit - wrong tagging on unitSystem.
215 Fixed bug in the DiagRecs decoder.
217 Added options for max PDU size and session timeout to frontend-server.
219 Added documentation of query-language parsers and other supporting utilities.
221 [frontend-server] Added Attribute set to the bend_scanrequest API.
223 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
224 surrogate diagnostics were generated.
226 [retrieval] Allow multiple local values for attribute.
228 [retrieval] Allow multiple attributes per element in .abs files. index type.
230 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
234 Minor changes, mostly specific to Zebra's requirements (retrieval)
238 Repaired bug in frontend server when running multiple listening
239 endpoints in dynamic mode.
241 z_External() now won't break if a known, ASN.1 value comes encapsulated
242 in an octet-string. The value will pass through unmodified in an Odr_oct.
244 Added a bit of code to the demo client to decode & display
245 ASN.1-structured records represented in the octet-aligned branch of
246 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
248 Added z_ext_getentbyref() to the ASN module. Doc updated.
250 * Completed the SCAN definition in the ASN module. This may break SCAN
251 code based on older YAZ-versions at compile-time. The fix is easy -
254 * Added 'displayTerm' and OtherInformation to the TermInfo structure
255 under the SCAN definition. Remember to initialize this, server-people.
257 Comstack should now support the WAIS protocol in TCP/IP mode. Note
258 that this does not extend to ODR and ASN.
260 Comstack allows insertion of established socket (primarily for
261 inetd-operation of servers). Doc updated.
263 Front-end server can now start from the inetd in TCP mode. Doc
270 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
271 the rank and record number.
273 Adjustments to the frontend server.
275 Fixed diagnostic BER dumper. It ignored the file argument.
279 Various changes to retrieval module.
281 Changed the union discriminators of the protocol files from enums to
282 ints paired with #defines.
284 *Changed oident.class to oident.oclass to avoid a reserved word in C++
287 *Changed operator in the RPN structure to 'roperator', again to avoid a
290 Fixed problems in Explain decoders/encoders.
294 Memory bug in log module fixed.
298 Occasional malloc() of 0 bytes fixed in d1_espec.c.
300 Bug in Explain DatabaseInfo module fixed.
302 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
306 The shift to v1.0 signals that we now consider the *core* functionality
307 of YAZ reasonably stable (the core being more or less equivalent to
308 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
309 tested (Explain not at all - though that will happen soonish).
311 Minor changes to code to support Windows port.
313 Various minor changes after we're getting to use GRS-1 & co. more.
315 Added Espec-1 format.
317 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
318 of the protocol and it cannot be selected when encoding (maps into 'string'
319 when decoding). Needed to talk to some servers.
321 Demo client can request simple element set names.
323 Added Diagnostic Format encoders/decoders.
325 Added simple Close handling to frontend server (no hooks for resource
326 reporting yet), and demonstration client.
328 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
332 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
333 handled incorrectly when records were requested in the searchResponse. This
334 will only affect you if you use the frontend-server.
336 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
337 Test-client will ask for and print GRS1. Ztest will return dummy records
340 Added Explain encoders/decoders to the service-level API. Untested.
342 Added Extended Services: Item Order encoders and decoders to the Service-
343 level API. Untested. We could use a recent copy of the pertinent bits
344 of the ILL protocol to add those bits.
346 Added diagnostic format 1 encoders/decoders to the service-level API.
349 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
350 odr_cons.c, which causes a more correct output.
352 Fixed handling of searchRequest in frontend server. NextResultSetPosition
353 was always set to 0 when no records were requested in the searchRequest.
355 * Added better external-handling. This shouldn't harm old code that
356 *encodes* externals. It can break code that looks for a
357 'single-ASN1-type' representation, since those types that are known
358 are now decoded immediately. Look at the SUTRS sample code in
359 seshigh.c and client.c. Documentation updated.
361 Handling of structured records in bend_fetchresponse. Length -1 marks
362 structured record, type is deduced from format field.
365 Fairly quick maintenance release to add SUTRS support.
367 Fixed handling of SUTRS records in the demonstration client.
369 * Added format field to the bend_fetchrequest and bend_fetchresponce
370 structures of the backend API (frontend server). When the record is
371 returned, the value of the format field is mapped to an OID. The
372 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
373 of the record. The special value VAL_NONE in the bend_request means
374 that no specific format was requested by the client. Documentation
375 updated accordingly. Test server (ztest) will return a fixed dummy
376 SUTRS record if your client requests SUTRS.
378 Documentation updated accordingly.
380 You can now set external libraries and RANLIB support in the top-level
384 First public release.