1 Possible compatibility problems with earlier versions marked with '*'.
3 Modified bib1.att; local attributes for ANY didn't include
4 ANY itself (only affects use of the retrieval module).
6 Fixed bug in plain SGML reader in function data1_read_node:
7 tags with prefix "var" was incorrectly interpreted as variants.
9 Added feature "sub-schemas" to enable references to - and definitions
10 of - group of elements.
12 * Removed member parent from type data1_element (in data1.h).
14 Implemented function odr_nullval() that returns the value of
17 * Removed member num_children from data1_node (in data1.h).
19 Made NT service interface part of the server library. The
20 function statserv_main uses the NT service when required and
21 calls the statserv_start / statserv_close routines.
23 Routine zget_SearchRequest fills resultSetName member with "default"
26 Fixed memory leak in server. Request queue member wasn't freed.
28 Fixed nmem_exit so that memory is freed.
32 Revised the CCL parser utility to be thread safe.
34 Added function, oid_ent_to_oid, to replace the function
35 oid_getoidbyent, which is not thread safe.
37 * Added nmem_init and nmem_exit to initialize and release
38 NMEM resources. Function nmem_init should be called once in the
39 initial thread before NMEM/ODR is used. statserv.c and client.c
40 have been changed accordingly. The change was necessary to make
41 NMEM thread safe. The NMEM memory pool is shared amongst threads
42 in a process. Unix-based applications will still work fine without
45 Added NT Services interface for the the Z39.50 (statserv) Server.
46 Refer to the ztest.c source on the usage.
48 Windows 95/NT port using MSV5.0. Project files are included in the
51 * Defined new 'global' handle for the retrieval (data1) system. The
52 new handled, data1_handle, describes the state of the data1 system.
53 This handle is passed as first argument to virtually all
54 data1 related routines. The functions data1_create and data1_destroy
55 creates and destroys a data1 handle respectively.
57 Added ODR encode stream member to all backend request structures
58 init, search, scan etc. This stream should be used to allocate all
59 memory used for the response when thread safe operation is needed.
61 Changed the comstack utility, cs_addstr, to be thread safe. The
62 returned hostname string returned by the function is now part the
65 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
66 function. The cs_straddr takes a COMSTACK handle as argument, so this
67 function must be used after cs_create and before bind/connect.
68 This function is thread safe.
70 Moved test server to 'ztest' directory - generic server code still
71 in 'server' directory.
73 Made prefix query (pquery.c) utility thread safe.
75 Added new function modifier YAZ_EXPORT to 'export' public DLL
76 functions when using windows (see include/yconfig.h).
78 Added definitions to the OID database (util/oid.c) (RVDM).
80 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
82 Added call to ccl_rpn_delete in client program.
84 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
85 release of RPN structure.
87 Added support for C++, headers uses extern "C" for public definitions.
90 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
91 Thanks to Ronald van der Meer (RVDM).
93 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
95 Added support for private extensions to the OID database
96 (oid_setprivateoids()). Thanks to RVDM.
98 Added optional, physical ANY (key replication)
100 Fixed null-reference problem in GRS-1 output filter.
102 Proximity operator added to Prefix Query Format (PQF).
104 In test client command "base" accepts multiple databases.
106 Fixed bug in cs_close stack that caused trouble with WINSOCK.
110 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
112 Smallish bug-fixes in the new encoders/decoders (explain).
114 Bug fixed in DeleteRequest.
116 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
118 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
120 Added SOIF syntax (using private OID for now) to retrieval module and client.
122 Added Update extended service.
124 Added SearchResult-1 additional info structure.
126 Added optional CCL (ISO8777) interpreter as separate module. Available
129 --- 1.2 1996/6/10 (1st anniversary release)
131 Added Summary record syntax. Lightly tested.
133 Added OPAC record syntax. Untested.
135 Added ResourceReport service encoders/decoders. Untested.
137 Fixed bug in z_Unit - wrong tagging on unitSystem.
139 Fixed bug in the DiagRecs decoder.
141 Added options for max PDU size and session timeout to frontend-server.
143 Added documentation of query-language parsers and other supporting utilities.
145 [frontend-server] Added Attribute set to the bend_scanrequest API.
147 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
148 surrogate diagnostics were generated.
150 [retrieval] Allow multiple local values for attribute.
152 [retrieval] Allow multiple attributes per element in .abs files. index type.
154 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
158 Minor changes, mostly specific to Zebra's requirements (retrieval)
162 Repaired bug in frontend server when running multiple listening
163 endpoints in dynamic mode.
165 z_External() now won't break if a known, ASN.1 value comes encapsulated
166 in an octet-string. The value will pass through unmodified in an Odr_oct.
168 Added a bit of code to the demo client to decode & display
169 ASN.1-structured records represented in the octet-aligned branch of
170 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
172 Added z_ext_getentbyref() to the ASN module. Doc updated.
174 * Completed the SCAN definition in the ASN module. This may break SCAN
175 code based on older YAZ-versions at compile-time. The fix is easy -
178 * Added 'displayTerm' and OtherInformation to the TermInfo structure
179 under the SCAN definition. Remember to initialize this, server-people.
181 Comstack should now support the WAIS protocol in TCP/IP mode. Note
182 that this does not extend to ODR and ASN.
184 Comstack allows insertion of established socket (primarily for
185 inetd-operation of servers). Doc updated.
187 Front-end server can now start from the inetd in TCP mode. Doc
194 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
195 the rank and record number.
197 Adjustments to the frontend server.
199 Fixed diagnostic BER dumper. It ignored the file argument.
203 Various changes to retrieval module.
205 Changed the union discriminators of the protocol files from enums to
206 ints paired with #defines.
208 *Changed oident.class to oident.oclass to avoid a reserved word in C++
211 *Changed operator in the RPN structure to 'roperator', again to avoid a
214 Fixed problems in Explain decoders/encoders.
218 Memory bug in log module fixed.
222 Occasional malloc() of 0 bytes fixed in d1_espec.c.
224 Bug in Explain DatabaseInfo module fixed.
226 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
230 The shift to v1.0 signals that we now consider the *core* functionality
231 of YAZ reasonably stable (the core being more or less equivalent to
232 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
233 tested (Explain not at all - though that will happen soonish).
235 Minor changes to code to support Windows port.
237 Various minor changes after we're getting to use GRS-1 & co. more.
239 Added Espec-1 format.
241 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
242 of the protocol and it cannot be selected when encoding (maps into 'string'
243 when decoding). Needed to talk to some servers.
245 Demo client can request simple element set names.
247 Added Diagnostic Format encoders/decoders.
249 Added simple Close handling to frontend server (no hooks for resource
250 reporting yet), and demonstration client.
252 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
256 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
257 handled incorrectly when records were requested in the searchResponse. This
258 will only affect you if you use the frontend-server.
260 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
261 Test-client will ask for and print GRS1. Ztest will return dummy records
264 Added Explain encoders/decoders to the service-level API. Untested.
266 Added Extended Services: Item Order encoders and decoders to the Service-
267 level API. Untested. We could use a recent copy of the pertinent bits
268 of the ILL protocol to add those bits.
270 Added diagnostic format 1 encoders/decoders to the service-level API.
273 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
274 odr_cons.c, which causes a more correct output.
276 Fixed handling of searchRequest in frontend server. NextResultSetPosition
277 was always set to 0 when no records were requested in the searchRequest.
279 * Added better external-handling. This shouldn't harm old code that
280 *encodes* externals. It can break code that looks for a
281 'single-ASN1-type' representation, since those types that are known
282 are now decoded immediately. Look at the SUTRS sample code in
283 seshigh.c and client.c. Documentation updated.
285 Handling of structured records in bend_fetchresponse. Length -1 marks
286 structured record, type is deduced from format field.
289 Fairly quick maintenance release to add SUTRS support.
291 Fixed handling of SUTRS records in the demonstration client.
293 * Added format field to the bend_fetchrequest and bend_fetchresponce
294 structures of the backend API (frontend server). When the record is
295 returned, the value of the format field is mapped to an OID. The
296 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
297 of the record. The special value VAL_NONE in the bend_request means
298 that no specific format was requested by the client. Documentation
299 updated accordingly. Test server (ztest) will return a fixed dummy
300 SUTRS record if your client requests SUTRS.
302 Documentation updated accordingly.
304 You can now set external libraries and RANLIB support in the top-level
308 First public release.