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