1 Possible compatibility problems with earlier versions marked with '*'.
3 * Added 'const' to some of the char pointer arguments for the
4 functions, data1_read_node, data1_getelementbytagname,
5 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
8 Fixed bug in data1_insert_taggeddata - the last_child member of
9 parent wasn't initialised.
11 * Changed data1_read_record and data1_read_node so that the supplied
12 "SGML"-buffer is read-only. In particular the resulting data1 - tree
13 doesn't refer to any parts of the "SGML"-buffer.
15 Fixed bug in server library (Windows version of statserv_remove).
17 * Changed code so that it compiles as C++. The type definition
18 of Odr_fun which is a member of Odr_arm was changed. The result is,
19 that an explicit typecast is needed for the fun pointer when
20 using Odr_arm - as in:
21 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
23 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
25 Implemented the new structured date and time definition as approved
26 by the ZIG. Added schemaId element to the specificTag in Espec-1
27 (also approved at the last ZIG). Thanks to RVDM.
29 Added some Object identifiers (RVDM).
31 Changed the Update Extended Service (RVDM).
33 Added command "refid" to client which specifies referenceId for
34 the following requests.
36 Implemented extended service handling for server. See ztest.c
37 for an example as well as backend.h. New handlers are registerd
40 * Changed interface for sort in server.
42 Added new members to statserv_options_block. It allows a server
43 to read options from another source than just the command line. Thanks
46 * Changed definition of Z_Triple in file prt-grs.h - member boolean
47 renamed to zboolean. Some C++ compilers complained about the name.
49 Minor changes to gils.abs. Added index 's' (sort) on title
50 and date/time-last-modified.
54 Fixed bug in server library regarding inetd mode (-i). This bug
55 was introduced by release 1.4.
59 Added sort facility in client and backend server interface.
61 Fixed problem with dependencies in Makefile(s).
63 Fixed bugs for encoders/decoders of extended services and
66 Implemented sub-tree feature for schemas. Sub-trees are
67 referenced in *.abs-files. See explain.abs for an example
68 of the use of this feature.
70 Modified bib1.att; local attributes for ANY didn't include
71 ANY itself (only affects use of the retrieval module).
73 Fixed bug in plain SGML reader in function data1_read_node:
74 tags with prefix "var" was incorrectly interpreted as variants.
76 Added feature "sub-schemas" to enable references to - and definitions
77 of - group of elements.
79 * Removed member parent from type data1_element (in data1.h).
81 Implemented function odr_nullval() that returns the value of
84 * Removed member num_children from data1_node (in data1.h).
86 Made NT service interface part of the server library. The
87 function statserv_main uses the NT service when required and
88 calls the statserv_start / statserv_close routines.
90 Routine zget_SearchRequest and zget_PresentRequest fills
91 resultSetName/Id member with "default" instead of "Default".
93 Fixed memory leak in server. Request queue member wasn't freed.
95 Fixed nmem_exit so that memory is freed.
99 Revised the CCL parser utility to be thread safe.
101 Added function, oid_ent_to_oid, to replace the function
102 oid_getoidbyent, which is not thread safe.
104 * Added nmem_init and nmem_exit to initialize and release
105 NMEM resources. Function nmem_init should be called once in the
106 initial thread before NMEM/ODR is used. statserv.c and client.c
107 have been changed accordingly. The change was necessary to make
108 NMEM thread safe. The NMEM memory pool is shared amongst threads
109 in a process. Unix-based applications will still work fine without
112 Added NT Services interface for the the Z39.50 (statserv) Server.
113 Refer to the ztest.c source on the usage.
115 Windows 95/NT port using MSVC5.0. Project files are included in the
118 * Defined new 'global' handle for the retrieval (data1) system. The
119 new handled, data1_handle, describes the state of the data1 system.
120 This handle is passed as first argument to virtually all
121 data1 related routines. The functions data1_create and data1_destroy
122 creates and destroys a data1 handle respectively.
124 Added ODR encode stream member to all backend request structures
125 init, search, scan etc. This stream should be used to allocate all
126 memory used for the response when thread safe operation is needed.
128 Changed the comstack utility, cs_addstr, to be thread safe. The
129 returned hostname string returned by the function is now part the
132 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
133 function. The cs_straddr takes a COMSTACK handle as argument, so this
134 function must be used after cs_create and before bind/connect.
135 This function is thread safe.
137 Moved test server to 'ztest' directory - generic server code still
138 in 'server' directory.
140 Made prefix query (pquery.c) utility thread safe.
142 Added new function modifier YAZ_EXPORT to 'export' public DLL
143 functions when using windows (see include/yconfig.h).
145 Added definitions to the OID database (util/oid.c) (RVDM).
147 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
149 Added call to ccl_rpn_delete in client program.
151 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
152 release of RPN structure.
154 Added support for C++, headers uses extern "C" for public definitions.
155 With input from RVDM.
157 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
158 Thanks to Ronald van der Meer (RVDM).
160 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
162 Added support for private extensions to the OID database
163 (oid_setprivateoids()). Thanks to RVDM.
165 Added optional, physical ANY (key replication)
167 Fixed null-reference problem in GRS-1 output filter.
169 Proximity operator added to Prefix Query Format (PQF).
171 In test client command "base" accepts multiple databases.
173 Fixed bug in cs_close stack that caused trouble with WINSOCK.
177 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
179 Smallish bug-fixes in the new encoders/decoders (explain).
181 Bug fixed in DeleteRequest.
183 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
185 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
187 Added SOIF syntax (using private OID for now) to retrieval module and client.
189 Added Update extended service.
191 Added SearchResult-1 additional info structure.
193 Added optional CCL (ISO8777) interpreter as separate module. Available
196 --- 1.2 1996/6/10 (1st anniversary release)
198 Added Summary record syntax. Lightly tested.
200 Added OPAC record syntax. Untested.
202 Added ResourceReport service encoders/decoders. Untested.
204 Fixed bug in z_Unit - wrong tagging on unitSystem.
206 Fixed bug in the DiagRecs decoder.
208 Added options for max PDU size and session timeout to frontend-server.
210 Added documentation of query-language parsers and other supporting utilities.
212 [frontend-server] Added Attribute set to the bend_scanrequest API.
214 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
215 surrogate diagnostics were generated.
217 [retrieval] Allow multiple local values for attribute.
219 [retrieval] Allow multiple attributes per element in .abs files. index type.
221 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
225 Minor changes, mostly specific to Zebra's requirements (retrieval)
229 Repaired bug in frontend server when running multiple listening
230 endpoints in dynamic mode.
232 z_External() now won't break if a known, ASN.1 value comes encapsulated
233 in an octet-string. The value will pass through unmodified in an Odr_oct.
235 Added a bit of code to the demo client to decode & display
236 ASN.1-structured records represented in the octet-aligned branch of
237 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
239 Added z_ext_getentbyref() to the ASN module. Doc updated.
241 * Completed the SCAN definition in the ASN module. This may break SCAN
242 code based on older YAZ-versions at compile-time. The fix is easy -
245 * Added 'displayTerm' and OtherInformation to the TermInfo structure
246 under the SCAN definition. Remember to initialize this, server-people.
248 Comstack should now support the WAIS protocol in TCP/IP mode. Note
249 that this does not extend to ODR and ASN.
251 Comstack allows insertion of established socket (primarily for
252 inetd-operation of servers). Doc updated.
254 Front-end server can now start from the inetd in TCP mode. Doc
261 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
262 the rank and record number.
264 Adjustments to the frontend server.
266 Fixed diagnostic BER dumper. It ignored the file argument.
270 Various changes to retrieval module.
272 Changed the union discriminators of the protocol files from enums to
273 ints paired with #defines.
275 *Changed oident.class to oident.oclass to avoid a reserved word in C++
278 *Changed operator in the RPN structure to 'roperator', again to avoid a
281 Fixed problems in Explain decoders/encoders.
285 Memory bug in log module fixed.
289 Occasional malloc() of 0 bytes fixed in d1_espec.c.
291 Bug in Explain DatabaseInfo module fixed.
293 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
297 The shift to v1.0 signals that we now consider the *core* functionality
298 of YAZ reasonably stable (the core being more or less equivalent to
299 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
300 tested (Explain not at all - though that will happen soonish).
302 Minor changes to code to support Windows port.
304 Various minor changes after we're getting to use GRS-1 & co. more.
306 Added Espec-1 format.
308 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
309 of the protocol and it cannot be selected when encoding (maps into 'string'
310 when decoding). Needed to talk to some servers.
312 Demo client can request simple element set names.
314 Added Diagnostic Format encoders/decoders.
316 Added simple Close handling to frontend server (no hooks for resource
317 reporting yet), and demonstration client.
319 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
323 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
324 handled incorrectly when records were requested in the searchResponse. This
325 will only affect you if you use the frontend-server.
327 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
328 Test-client will ask for and print GRS1. Ztest will return dummy records
331 Added Explain encoders/decoders to the service-level API. Untested.
333 Added Extended Services: Item Order encoders and decoders to the Service-
334 level API. Untested. We could use a recent copy of the pertinent bits
335 of the ILL protocol to add those bits.
337 Added diagnostic format 1 encoders/decoders to the service-level API.
340 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
341 odr_cons.c, which causes a more correct output.
343 Fixed handling of searchRequest in frontend server. NextResultSetPosition
344 was always set to 0 when no records were requested in the searchRequest.
346 * Added better external-handling. This shouldn't harm old code that
347 *encodes* externals. It can break code that looks for a
348 'single-ASN1-type' representation, since those types that are known
349 are now decoded immediately. Look at the SUTRS sample code in
350 seshigh.c and client.c. Documentation updated.
352 Handling of structured records in bend_fetchresponse. Length -1 marks
353 structured record, type is deduced from format field.
356 Fairly quick maintenance release to add SUTRS support.
358 Fixed handling of SUTRS records in the demonstration client.
360 * Added format field to the bend_fetchrequest and bend_fetchresponce
361 structures of the backend API (frontend server). When the record is
362 returned, the value of the format field is mapped to an OID. The
363 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
364 of the record. The special value VAL_NONE in the bend_request means
365 that no specific format was requested by the client. Documentation
366 updated accordingly. Test server (ztest) will return a fixed dummy
367 SUTRS record if your client requests SUTRS.
369 Documentation updated accordingly.
371 You can now set external libraries and RANLIB support in the top-level
375 First public release.