1 Possible compatibility problems with earlier versions marked with '*'.
3 Fixed problem with dependencies in Makefile(s).
5 Fixed bugs for encoders/decoders of extended services and
8 Implemented sub-tree feature for schemas. Sub-trees are
9 referenced in *.abs-files. See explain.abs for an example
10 of the use of this feature.
12 Modified bib1.att; local attributes for ANY didn't include
13 ANY itself (only affects use of the retrieval module).
15 Fixed bug in plain SGML reader in function data1_read_node:
16 tags with prefix "var" was incorrectly interpreted as variants.
18 Added feature "sub-schemas" to enable references to - and definitions
19 of - group of elements.
21 * Removed member parent from type data1_element (in data1.h).
23 Implemented function odr_nullval() that returns the value of
26 * Removed member num_children from data1_node (in data1.h).
28 Made NT service interface part of the server library. The
29 function statserv_main uses the NT service when required and
30 calls the statserv_start / statserv_close routines.
32 Routine zget_SearchRequest fills resultSetName member with "default"
35 Fixed memory leak in server. Request queue member wasn't freed.
37 Fixed nmem_exit so that memory is freed.
41 Revised the CCL parser utility to be thread safe.
43 Added function, oid_ent_to_oid, to replace the function
44 oid_getoidbyent, which is not thread safe.
46 * Added nmem_init and nmem_exit to initialize and release
47 NMEM resources. Function nmem_init should be called once in the
48 initial thread before NMEM/ODR is used. statserv.c and client.c
49 have been changed accordingly. The change was necessary to make
50 NMEM thread safe. The NMEM memory pool is shared amongst threads
51 in a process. Unix-based applications will still work fine without
54 Added NT Services interface for the the Z39.50 (statserv) Server.
55 Refer to the ztest.c source on the usage.
57 Windows 95/NT port using MSVC5.0. Project files are included in the
60 * Defined new 'global' handle for the retrieval (data1) system. The
61 new handled, data1_handle, describes the state of the data1 system.
62 This handle is passed as first argument to virtually all
63 data1 related routines. The functions data1_create and data1_destroy
64 creates and destroys a data1 handle respectively.
66 Added ODR encode stream member to all backend request structures
67 init, search, scan etc. This stream should be used to allocate all
68 memory used for the response when thread safe operation is needed.
70 Changed the comstack utility, cs_addstr, to be thread safe. The
71 returned hostname string returned by the function is now part the
74 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
75 function. The cs_straddr takes a COMSTACK handle as argument, so this
76 function must be used after cs_create and before bind/connect.
77 This function is thread safe.
79 Moved test server to 'ztest' directory - generic server code still
80 in 'server' directory.
82 Made prefix query (pquery.c) utility thread safe.
84 Added new function modifier YAZ_EXPORT to 'export' public DLL
85 functions when using windows (see include/yconfig.h).
87 Added definitions to the OID database (util/oid.c) (RVDM).
89 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
91 Added call to ccl_rpn_delete in client program.
93 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
94 release of RPN structure.
96 Added support for C++, headers uses extern "C" for public definitions.
99 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
100 Thanks to Ronald van der Meer (RVDM).
102 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
104 Added support for private extensions to the OID database
105 (oid_setprivateoids()). Thanks to RVDM.
107 Added optional, physical ANY (key replication)
109 Fixed null-reference problem in GRS-1 output filter.
111 Proximity operator added to Prefix Query Format (PQF).
113 In test client command "base" accepts multiple databases.
115 Fixed bug in cs_close stack that caused trouble with WINSOCK.
119 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
121 Smallish bug-fixes in the new encoders/decoders (explain).
123 Bug fixed in DeleteRequest.
125 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
127 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
129 Added SOIF syntax (using private OID for now) to retrieval module and client.
131 Added Update extended service.
133 Added SearchResult-1 additional info structure.
135 Added optional CCL (ISO8777) interpreter as separate module. Available
138 --- 1.2 1996/6/10 (1st anniversary release)
140 Added Summary record syntax. Lightly tested.
142 Added OPAC record syntax. Untested.
144 Added ResourceReport service encoders/decoders. Untested.
146 Fixed bug in z_Unit - wrong tagging on unitSystem.
148 Fixed bug in the DiagRecs decoder.
150 Added options for max PDU size and session timeout to frontend-server.
152 Added documentation of query-language parsers and other supporting utilities.
154 [frontend-server] Added Attribute set to the bend_scanrequest API.
156 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
157 surrogate diagnostics were generated.
159 [retrieval] Allow multiple local values for attribute.
161 [retrieval] Allow multiple attributes per element in .abs files. index type.
163 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
167 Minor changes, mostly specific to Zebra's requirements (retrieval)
171 Repaired bug in frontend server when running multiple listening
172 endpoints in dynamic mode.
174 z_External() now won't break if a known, ASN.1 value comes encapsulated
175 in an octet-string. The value will pass through unmodified in an Odr_oct.
177 Added a bit of code to the demo client to decode & display
178 ASN.1-structured records represented in the octet-aligned branch of
179 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
181 Added z_ext_getentbyref() to the ASN module. Doc updated.
183 * Completed the SCAN definition in the ASN module. This may break SCAN
184 code based on older YAZ-versions at compile-time. The fix is easy -
187 * Added 'displayTerm' and OtherInformation to the TermInfo structure
188 under the SCAN definition. Remember to initialize this, server-people.
190 Comstack should now support the WAIS protocol in TCP/IP mode. Note
191 that this does not extend to ODR and ASN.
193 Comstack allows insertion of established socket (primarily for
194 inetd-operation of servers). Doc updated.
196 Front-end server can now start from the inetd in TCP mode. Doc
203 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
204 the rank and record number.
206 Adjustments to the frontend server.
208 Fixed diagnostic BER dumper. It ignored the file argument.
212 Various changes to retrieval module.
214 Changed the union discriminators of the protocol files from enums to
215 ints paired with #defines.
217 *Changed oident.class to oident.oclass to avoid a reserved word in C++
220 *Changed operator in the RPN structure to 'roperator', again to avoid a
223 Fixed problems in Explain decoders/encoders.
227 Memory bug in log module fixed.
231 Occasional malloc() of 0 bytes fixed in d1_espec.c.
233 Bug in Explain DatabaseInfo module fixed.
235 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
239 The shift to v1.0 signals that we now consider the *core* functionality
240 of YAZ reasonably stable (the core being more or less equivalent to
241 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
242 tested (Explain not at all - though that will happen soonish).
244 Minor changes to code to support Windows port.
246 Various minor changes after we're getting to use GRS-1 & co. more.
248 Added Espec-1 format.
250 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
251 of the protocol and it cannot be selected when encoding (maps into 'string'
252 when decoding). Needed to talk to some servers.
254 Demo client can request simple element set names.
256 Added Diagnostic Format encoders/decoders.
258 Added simple Close handling to frontend server (no hooks for resource
259 reporting yet), and demonstration client.
261 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
265 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
266 handled incorrectly when records were requested in the searchResponse. This
267 will only affect you if you use the frontend-server.
269 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
270 Test-client will ask for and print GRS1. Ztest will return dummy records
273 Added Explain encoders/decoders to the service-level API. Untested.
275 Added Extended Services: Item Order encoders and decoders to the Service-
276 level API. Untested. We could use a recent copy of the pertinent bits
277 of the ILL protocol to add those bits.
279 Added diagnostic format 1 encoders/decoders to the service-level API.
282 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
283 odr_cons.c, which causes a more correct output.
285 Fixed handling of searchRequest in frontend server. NextResultSetPosition
286 was always set to 0 when no records were requested in the searchRequest.
288 * Added better external-handling. This shouldn't harm old code that
289 *encodes* externals. It can break code that looks for a
290 'single-ASN1-type' representation, since those types that are known
291 are now decoded immediately. Look at the SUTRS sample code in
292 seshigh.c and client.c. Documentation updated.
294 Handling of structured records in bend_fetchresponse. Length -1 marks
295 structured record, type is deduced from format field.
298 Fairly quick maintenance release to add SUTRS support.
300 Fixed handling of SUTRS records in the demonstration client.
302 * Added format field to the bend_fetchrequest and bend_fetchresponce
303 structures of the backend API (frontend server). When the record is
304 returned, the value of the format field is mapped to an OID. The
305 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
306 of the record. The special value VAL_NONE in the bend_request means
307 that no specific format was requested by the client. Documentation
308 updated accordingly. Test server (ztest) will return a fixed dummy
309 SUTRS record if your client requests SUTRS.
311 Documentation updated accordingly.
313 You can now set external libraries and RANLIB support in the top-level
317 First public release.