2 * Copyright (c) 1995-1999, Index Data.
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.22 1999-05-26 15:24:26 adam
8 * Fixed minor bugs regarding DB Update (introduced by previous commit).
10 * Revision 1.21 1999/05/26 14:47:12 adam
11 * Implemented z_ext_record.
13 * Revision 1.20 1999/04/20 09:56:48 adam
14 * Added 'name' paramter to encoder/decoder routines (typedef Odr_fun).
15 * Modified all encoders/decoders to reflect this change.
17 * Revision 1.19 1998/03/31 15:13:19 adam
18 * Development towards compiled ASN.1.
20 * Revision 1.18 1998/03/31 11:07:44 adam
21 * Furhter work on UNIverse resource report.
22 * Added Extended Services handling in frontend server.
24 * Revision 1.17 1998/03/20 14:46:06 adam
25 * Added UNIverse Resource Reports.
27 * Revision 1.16 1998/02/11 11:53:32 adam
28 * Changed code so that it compiles as C++.
30 * Revision 1.15 1998/02/10 15:31:46 adam
31 * Implemented date and time structure. Changed the Update Extended
34 * Revision 1.14 1998/01/05 09:04:57 adam
35 * Fixed bugs in encoders/decoders - Not operator (!) missing.
37 * Revision 1.13 1997/05/14 06:53:22 adam
40 * Revision 1.12 1997/04/30 08:52:02 quinn
43 * Revision 1.11 1996/10/10 12:35:13 quinn
44 * Added Update extended service.
46 * Revision 1.10 1996/10/09 15:54:55 quinn
47 * Added SearchInfoReport
49 * Revision 1.9 1996/06/10 08:53:36 quinn
50 * Added Summary,OPAC,ResourceReport
52 * Revision 1.8 1996/02/20 12:51:44 quinn
53 * Completed SCAN. Fixed problems with EXTERNAL.
55 * Revision 1.7 1995/10/12 10:34:38 quinn
58 * Revision 1.6 1995/09/29 17:11:55 quinn
61 * Revision 1.5 1995/09/27 15:02:42 quinn
62 * Modified function heads & prototypes.
64 * Revision 1.4 1995/08/29 11:17:16 quinn
65 * *** empty log message ***
67 * Revision 1.3 1995/08/21 09:10:18 quinn
68 * Smallish fixes to suppport new formats.
70 * Revision 1.2 1995/08/17 12:45:00 quinn
71 * Fixed minor problems with GRS-1. Added support in c&s.
73 * Revision 1.1 1995/08/15 13:37:41 quinn
82 * The table below should be moved to the ODR structure itself and
83 * be an image of the association context: To help
84 * map indirect references when they show up.
86 static Z_ext_typeent type_table[] =
88 {VAL_SUTRS, Z_External_sutrs, (Odr_fun) z_SUTRS},
89 {VAL_EXPLAIN, Z_External_explainRecord, (Odr_fun)z_ExplainRecord},
90 {VAL_RESOURCE1, Z_External_resourceReport1, (Odr_fun)z_ResourceReport1},
91 {VAL_RESOURCE2, Z_External_resourceReport2, (Odr_fun)z_ResourceReport2},
92 {VAL_PROMPT1, Z_External_promptObject1, (Odr_fun)z_PromptObject1 },
93 {VAL_GRS1, Z_External_grs1, (Odr_fun)z_GenericRecord},
94 {VAL_EXTENDED, Z_External_extendedService, (Odr_fun)z_TaskPackage},
96 {VAL_ITEMORDER, Z_External_itemOrder, (Odr_fun)z_IOItemOrder},
98 {VAL_ITEMORDER, Z_External_itemOrder, (Odr_fun)z_ItemOrder},
100 {VAL_DIAG1, Z_External_diag1, (Odr_fun)z_DiagnosticFormat},
101 {VAL_ESPEC1, Z_External_espec1, (Odr_fun)z_Espec1},
102 {VAL_SUMMARY, Z_External_summary, (Odr_fun)z_BriefBib},
103 {VAL_OPAC, Z_External_OPAC, (Odr_fun)z_OPACRecord},
104 {VAL_SEARCHRES1, Z_External_searchResult1, (Odr_fun)z_SearchInfoReport},
105 {VAL_DBUPDATE, Z_External_update, (Odr_fun)z_IUUpdate},
106 {VAL_DATETIME, Z_External_dateTime, (Odr_fun)z_DateTime},
107 {VAL_UNIVERSE_REPORT, Z_External_universeReport, (Odr_fun)z_UniverseReport},
111 Z_ext_typeent *z_ext_getentbyref(oid_value val)
115 for (i = type_table; i->dref != VAL_NONE; i++)
121 int z_External(ODR o, Z_External **p, int opt, const char *name)
126 static Odr_arm arm[] =
128 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_single,
129 (Odr_fun)odr_any, 0},
130 {ODR_IMPLICIT, ODR_CONTEXT, 1, Z_External_octet,
131 (Odr_fun)odr_octetstring, 0},
132 {ODR_IMPLICIT, ODR_CONTEXT, 2, Z_External_arbitrary,
133 (Odr_fun)odr_bitstring, 0},
134 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_sutrs,
135 (Odr_fun)z_SUTRS, 0},
136 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_explainRecord,
137 (Odr_fun)z_ExplainRecord, 0},
138 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_resourceReport1,
139 (Odr_fun)z_ResourceReport1, 0},
140 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_resourceReport2,
141 (Odr_fun)z_ResourceReport2, 0},
142 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_promptObject1,
143 (Odr_fun)z_PromptObject1, 0},
144 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_grs1,
145 (Odr_fun)z_GenericRecord, 0},
146 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_extendedService,
147 (Odr_fun)z_TaskPackage, 0},
149 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_itemOrder,
150 (Odr_fun)z_IOItemOrder, 0},
152 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_itemOrder,
153 (Odr_fun)z_ItemOrder, 0},
155 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_diag1,
156 (Odr_fun)z_DiagnosticFormat, 0},
157 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_espec1,
158 (Odr_fun)z_Espec1, 0},
159 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_summary,
160 (Odr_fun)z_BriefBib, 0},
161 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_OPAC,
162 (Odr_fun)z_OPACRecord, 0},
163 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_searchResult1,
164 (Odr_fun)z_SearchInfoReport, 0},
165 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_update,
166 (Odr_fun)z_IUUpdate, 0},
167 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_dateTime,
168 (Odr_fun)z_DateTime, 0},
169 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_universeReport,
170 (Odr_fun)z_UniverseReport, 0},
171 {-1, -1, -1, -1, 0, 0}
174 odr_implicit_settag(o, ODR_UNIVERSAL, ODR_EXTERNAL);
175 if (!odr_sequence_begin(o, p, sizeof(**p), name))
176 return opt && odr_ok(o);
177 if (!(odr_oid(o, &(*p)->direct_reference, 1, 0) &&
178 odr_integer(o, &(*p)->indirect_reference, 1, 0) &&
179 odr_graphicstring(o, &(*p)->descriptor, 1, 0)))
182 * Do we know this beast?
184 if (o->direction == ODR_DECODE && (*p)->direct_reference &&
185 (oid = oid_getentbyoid((*p)->direct_reference)) &&
186 (type = z_ext_getentbyref(oid->value)))
188 int zclass, tag, cons;
191 * We know it. If it's represented as an ASN.1 type, bias the CHOICE.
193 if (!odr_peektag(o, &zclass, &tag, &cons))
194 return opt && odr_ok(o);
195 if (zclass == ODR_CONTEXT && tag == 0 && cons == 1)
196 odr_choice_bias(o, type->what);
199 odr_choice(o, arm, &(*p)->u, &(*p)->which, name) &&
203 Z_External *z_ext_record(ODR o, int format, const char *buf, int len)
209 thisext = (Z_External *) odr_malloc(o, sizeof(*thisext));
210 thisext->descriptor = 0;
211 thisext->indirect_reference = 0;
213 recform.proto = PROTO_Z3950;
214 recform.oclass = CLASS_RECSYN;
215 recform.value = (enum oid_value) format;
216 if (!oid_ent_to_oid(&recform, oid))
218 thisext->direct_reference = odr_oiddup(o, oid);
220 if (len < 0) /* Structured data */
225 thisext->which = Z_External_sutrs;
228 thisext->which = Z_External_grs1;
231 thisext->which = Z_External_explainRecord;
234 thisext->which = Z_External_summary;
237 thisext->which = Z_External_OPAC;
244 * We cheat on the pointers here. Obviously, the record field
245 * of the backend-fetch structure should have been a union for
246 * correctness, but we're stuck with this for backwards
249 thisext->u.grs1 = (Z_GenericRecord*) buf;
251 else if (format == VAL_SUTRS) /* SUTRS is a single-ASN.1-type */
253 Odr_oct *sutrs = (Odr_oct *)odr_malloc(o, sizeof(*sutrs));
255 thisext->which = Z_External_sutrs;
256 thisext->u.sutrs = sutrs;
257 sutrs->buf = (unsigned char *)odr_malloc(o, len);
258 sutrs->len = sutrs->size = len;
259 memcpy(sutrs->buf, buf, len);
263 thisext->which = Z_External_octet;
264 if (!(thisext->u.octet_aligned = (Odr_oct *)
265 odr_malloc(o, sizeof(Odr_oct))))
267 if (!(thisext->u.octet_aligned->buf = (unsigned char *)
270 memcpy(thisext->u.octet_aligned->buf, buf, len);
271 thisext->u.octet_aligned->len = thisext->u.octet_aligned->size = len;