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