1 Possible compatibility problems with earlier versions marked with '*'.
3 Added sort facility in client and backend server interface.
5 Fixed problem with dependencies in Makefile(s).
7 Fixed bugs for encoders/decoders of extended services and
10 Implemented sub-tree feature for schemas. Sub-trees are
11 referenced in *.abs-files. See explain.abs for an example
12 of the use of this feature.
14 Modified bib1.att; local attributes for ANY didn't include
15 ANY itself (only affects use of the retrieval module).
17 Fixed bug in plain SGML reader in function data1_read_node:
18 tags with prefix "var" was incorrectly interpreted as variants.
20 Added feature "sub-schemas" to enable references to - and definitions
21 of - group of elements.
23 * Removed member parent from type data1_element (in data1.h).
25 Implemented function odr_nullval() that returns the value of
28 * Removed member num_children from data1_node (in data1.h).
30 Made NT service interface part of the server library. The
31 function statserv_main uses the NT service when required and
32 calls the statserv_start / statserv_close routines.
34 Routine zget_SearchRequest and zget_PresentRequest fills
35 resultSetName/Id member with "default" instead of "Default".
37 Fixed memory leak in server. Request queue member wasn't freed.
39 Fixed nmem_exit so that memory is freed.
43 Revised the CCL parser utility to be thread safe.
45 Added function, oid_ent_to_oid, to replace the function
46 oid_getoidbyent, which is not thread safe.
48 * Added nmem_init and nmem_exit to initialize and release
49 NMEM resources. Function nmem_init should be called once in the
50 initial thread before NMEM/ODR is used. statserv.c and client.c
51 have been changed accordingly. The change was necessary to make
52 NMEM thread safe. The NMEM memory pool is shared amongst threads
53 in a process. Unix-based applications will still work fine without
56 Added NT Services interface for the the Z39.50 (statserv) Server.
57 Refer to the ztest.c source on the usage.
59 Windows 95/NT port using MSVC5.0. Project files are included in the
62 * Defined new 'global' handle for the retrieval (data1) system. The
63 new handled, data1_handle, describes the state of the data1 system.
64 This handle is passed as first argument to virtually all
65 data1 related routines. The functions data1_create and data1_destroy
66 creates and destroys a data1 handle respectively.
68 Added ODR encode stream member to all backend request structures
69 init, search, scan etc. This stream should be used to allocate all
70 memory used for the response when thread safe operation is needed.
72 Changed the comstack utility, cs_addstr, to be thread safe. The
73 returned hostname string returned by the function is now part the
76 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
77 function. The cs_straddr takes a COMSTACK handle as argument, so this
78 function must be used after cs_create and before bind/connect.
79 This function is thread safe.
81 Moved test server to 'ztest' directory - generic server code still
82 in 'server' directory.
84 Made prefix query (pquery.c) utility thread safe.
86 Added new function modifier YAZ_EXPORT to 'export' public DLL
87 functions when using windows (see include/yconfig.h).
89 Added definitions to the OID database (util/oid.c) (RVDM).
91 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
93 Added call to ccl_rpn_delete in client program.
95 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
96 release of RPN structure.
98 Added support for C++, headers uses extern "C" for public definitions.
101 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
102 Thanks to Ronald van der Meer (RVDM).
104 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
106 Added support for private extensions to the OID database
107 (oid_setprivateoids()). Thanks to RVDM.
109 Added optional, physical ANY (key replication)
111 Fixed null-reference problem in GRS-1 output filter.
113 Proximity operator added to Prefix Query Format (PQF).
115 In test client command "base" accepts multiple databases.
117 Fixed bug in cs_close stack that caused trouble with WINSOCK.
121 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
123 Smallish bug-fixes in the new encoders/decoders (explain).
125 Bug fixed in DeleteRequest.
127 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
129 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
131 Added SOIF syntax (using private OID for now) to retrieval module and client.
133 Added Update extended service.
135 Added SearchResult-1 additional info structure.
137 Added optional CCL (ISO8777) interpreter as separate module. Available
140 --- 1.2 1996/6/10 (1st anniversary release)
142 Added Summary record syntax. Lightly tested.
144 Added OPAC record syntax. Untested.
146 Added ResourceReport service encoders/decoders. Untested.
148 Fixed bug in z_Unit - wrong tagging on unitSystem.
150 Fixed bug in the DiagRecs decoder.
152 Added options for max PDU size and session timeout to frontend-server.
154 Added documentation of query-language parsers and other supporting utilities.
156 [frontend-server] Added Attribute set to the bend_scanrequest API.
158 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
159 surrogate diagnostics were generated.
161 [retrieval] Allow multiple local values for attribute.
163 [retrieval] Allow multiple attributes per element in .abs files. index type.
165 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
169 Minor changes, mostly specific to Zebra's requirements (retrieval)
173 Repaired bug in frontend server when running multiple listening
174 endpoints in dynamic mode.
176 z_External() now won't break if a known, ASN.1 value comes encapsulated
177 in an octet-string. The value will pass through unmodified in an Odr_oct.
179 Added a bit of code to the demo client to decode & display
180 ASN.1-structured records represented in the octet-aligned branch of
181 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
183 Added z_ext_getentbyref() to the ASN module. Doc updated.
185 * Completed the SCAN definition in the ASN module. This may break SCAN
186 code based on older YAZ-versions at compile-time. The fix is easy -
189 * Added 'displayTerm' and OtherInformation to the TermInfo structure
190 under the SCAN definition. Remember to initialize this, server-people.
192 Comstack should now support the WAIS protocol in TCP/IP mode. Note
193 that this does not extend to ODR and ASN.
195 Comstack allows insertion of established socket (primarily for
196 inetd-operation of servers). Doc updated.
198 Front-end server can now start from the inetd in TCP mode. Doc
205 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
206 the rank and record number.
208 Adjustments to the frontend server.
210 Fixed diagnostic BER dumper. It ignored the file argument.
214 Various changes to retrieval module.
216 Changed the union discriminators of the protocol files from enums to
217 ints paired with #defines.
219 *Changed oident.class to oident.oclass to avoid a reserved word in C++
222 *Changed operator in the RPN structure to 'roperator', again to avoid a
225 Fixed problems in Explain decoders/encoders.
229 Memory bug in log module fixed.
233 Occasional malloc() of 0 bytes fixed in d1_espec.c.
235 Bug in Explain DatabaseInfo module fixed.
237 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
241 The shift to v1.0 signals that we now consider the *core* functionality
242 of YAZ reasonably stable (the core being more or less equivalent to
243 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
244 tested (Explain not at all - though that will happen soonish).
246 Minor changes to code to support Windows port.
248 Various minor changes after we're getting to use GRS-1 & co. more.
250 Added Espec-1 format.
252 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
253 of the protocol and it cannot be selected when encoding (maps into 'string'
254 when decoding). Needed to talk to some servers.
256 Demo client can request simple element set names.
258 Added Diagnostic Format encoders/decoders.
260 Added simple Close handling to frontend server (no hooks for resource
261 reporting yet), and demonstration client.
263 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
267 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
268 handled incorrectly when records were requested in the searchResponse. This
269 will only affect you if you use the frontend-server.
271 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
272 Test-client will ask for and print GRS1. Ztest will return dummy records
275 Added Explain encoders/decoders to the service-level API. Untested.
277 Added Extended Services: Item Order encoders and decoders to the Service-
278 level API. Untested. We could use a recent copy of the pertinent bits
279 of the ILL protocol to add those bits.
281 Added diagnostic format 1 encoders/decoders to the service-level API.
284 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
285 odr_cons.c, which causes a more correct output.
287 Fixed handling of searchRequest in frontend server. NextResultSetPosition
288 was always set to 0 when no records were requested in the searchRequest.
290 * Added better external-handling. This shouldn't harm old code that
291 *encodes* externals. It can break code that looks for a
292 'single-ASN1-type' representation, since those types that are known
293 are now decoded immediately. Look at the SUTRS sample code in
294 seshigh.c and client.c. Documentation updated.
296 Handling of structured records in bend_fetchresponse. Length -1 marks
297 structured record, type is deduced from format field.
300 Fairly quick maintenance release to add SUTRS support.
302 Fixed handling of SUTRS records in the demonstration client.
304 * Added format field to the bend_fetchrequest and bend_fetchresponce
305 structures of the backend API (frontend server). When the record is
306 returned, the value of the format field is mapped to an OID. The
307 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
308 of the record. The special value VAL_NONE in the bend_request means
309 that no specific format was requested by the client. Documentation
310 updated accordingly. Test server (ztest) will return a fixed dummy
311 SUTRS record if your client requests SUTRS.
313 Documentation updated accordingly.
315 You can now set external libraries and RANLIB support in the top-level
319 First public release.