2 * Copyright (c) 1995-2004, Index Data.
3 * See the file LICENSE for details.
5 * $Id: prt-ext.c,v 1.3 2004-10-15 00:19:00 adam Exp $
10 * \brief Implements handling of various Z39.50 Externals
13 #include <yaz/proto.h>
16 * The table below should be moved to the ODR structure itself and
17 * be an image of the association context: To help
18 * map indirect references when they show up.
20 static Z_ext_typeent type_table[] =
22 {VAL_SUTRS, Z_External_sutrs, (Odr_fun) z_SUTRS},
23 {VAL_EXPLAIN, Z_External_explainRecord, (Odr_fun)z_ExplainRecord},
24 {VAL_RESOURCE1, Z_External_resourceReport1, (Odr_fun)z_ResourceReport1},
25 {VAL_RESOURCE2, Z_External_resourceReport2, (Odr_fun)z_ResourceReport2},
26 {VAL_PROMPT1, Z_External_promptObject1, (Odr_fun)z_PromptObject1 },
27 {VAL_GRS1, Z_External_grs1, (Odr_fun)z_GenericRecord},
28 {VAL_EXTENDED, Z_External_extendedService, (Odr_fun)z_TaskPackage},
29 {VAL_ITEMORDER, Z_External_itemOrder, (Odr_fun)z_IOItemOrder},
30 {VAL_DIAG1, Z_External_diag1, (Odr_fun)z_DiagnosticFormat},
31 {VAL_ESPEC1, Z_External_espec1, (Odr_fun)z_Espec1},
32 {VAL_SUMMARY, Z_External_summary, (Odr_fun)z_BriefBib},
33 {VAL_OPAC, Z_External_OPAC, (Odr_fun)z_OPACRecord},
34 {VAL_SEARCHRES1, Z_External_searchResult1, (Odr_fun)z_SearchInfoReport},
35 {VAL_DBUPDATE, Z_External_update, (Odr_fun)z_IUUpdate},
36 {VAL_DBUPDATE0, Z_External_update0, (Odr_fun)z_IU0Update},
37 {VAL_DBUPDATE1, Z_External_update0, (Odr_fun)z_IU0Update},
38 {VAL_DATETIME, Z_External_dateTime, (Odr_fun)z_DateTime},
39 {VAL_UNIVERSE_REPORT, Z_External_universeReport,(Odr_fun)z_UniverseReport},
40 {VAL_ADMINSERVICE, Z_External_ESAdmin, (Odr_fun)z_Admin},
41 {VAL_USERINFO1, Z_External_userInfo1, (Odr_fun) z_OtherInformation},
42 {VAL_CHARNEG3, Z_External_charSetandLanguageNegotiation, (Odr_fun)
43 z_CharSetandLanguageNegotiation},
44 {VAL_PROMPT1, Z_External_acfPrompt1, (Odr_fun) z_PromptObject1},
45 {VAL_DES1, Z_External_acfDes1, (Odr_fun) z_DES_RN_Object},
46 {VAL_KRB1, Z_External_acfKrb1, (Odr_fun) z_KRBObject},
47 {VAL_MULTISRCH2, Z_External_multisrch2, (Odr_fun) z_MultipleSearchTerms_2},
48 {VAL_CQL, Z_External_CQL, (Odr_fun) z_InternationalString},
52 Z_ext_typeent *z_ext_getentbyref(oid_value val)
56 for (i = type_table; i->dref != VAL_NONE; i++)
62 int z_External(ODR o, Z_External **p, int opt, const char *name)
67 static Odr_arm arm[] =
69 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_single,
71 {ODR_IMPLICIT, ODR_CONTEXT, 1, Z_External_octet,
72 (Odr_fun)odr_octetstring, 0},
73 {ODR_IMPLICIT, ODR_CONTEXT, 2, Z_External_arbitrary,
74 (Odr_fun)odr_bitstring, 0},
75 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_sutrs,
77 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_explainRecord,
78 (Odr_fun)z_ExplainRecord, 0},
80 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_resourceReport1,
81 (Odr_fun)z_ResourceReport1, 0},
82 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_resourceReport2,
83 (Odr_fun)z_ResourceReport2, 0},
84 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_promptObject1,
85 (Odr_fun)z_PromptObject1, 0},
86 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_grs1,
87 (Odr_fun)z_GenericRecord, 0},
88 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_extendedService,
89 (Odr_fun)z_TaskPackage, 0},
91 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_itemOrder,
92 (Odr_fun)z_IOItemOrder, 0},
93 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_diag1,
94 (Odr_fun)z_DiagnosticFormat, 0},
95 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_espec1,
96 (Odr_fun)z_Espec1, 0},
97 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_summary,
98 (Odr_fun)z_BriefBib, 0},
99 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_OPAC,
100 (Odr_fun)z_OPACRecord, 0},
102 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_searchResult1,
103 (Odr_fun)z_SearchInfoReport, 0},
104 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_update,
105 (Odr_fun)z_IUUpdate, 0},
106 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_dateTime,
107 (Odr_fun)z_DateTime, 0},
108 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_universeReport,
109 (Odr_fun)z_UniverseReport, 0},
110 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_ESAdmin,
111 (Odr_fun)z_Admin, 0},
113 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_update0,
114 (Odr_fun)z_IU0Update, 0},
115 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_userInfo1,
116 (Odr_fun)z_OtherInformation, 0},
117 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_charSetandLanguageNegotiation,
118 (Odr_fun)z_CharSetandLanguageNegotiation, 0},
119 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_acfPrompt1,
120 (Odr_fun)z_PromptObject1, 0},
121 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_acfDes1,
122 (Odr_fun)z_DES_RN_Object, 0},
124 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_acfKrb1,
125 (Odr_fun)z_KRBObject, 0},
126 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_multisrch2,
127 (Odr_fun)z_MultipleSearchTerms_2, 0},
128 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_CQL,
129 (Odr_fun)z_InternationalString, 0},
130 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_OCLCUserInfo,
131 (Odr_fun)z_OCLC_UserInformation, 0},
132 {-1, -1, -1, -1, 0, 0}
135 odr_implicit_settag(o, ODR_UNIVERSAL, ODR_EXTERNAL);
136 if (!odr_sequence_begin(o, p, sizeof(**p), name))
137 return opt && odr_ok(o);
138 if (!(odr_oid(o, &(*p)->direct_reference, 1, 0) &&
139 odr_integer(o, &(*p)->indirect_reference, 1, 0) &&
140 odr_graphicstring(o, &(*p)->descriptor, 1, 0)))
143 * Do we know this beast?
145 if (o->direction == ODR_DECODE && (*p)->direct_reference &&
146 (oid = oid_getentbyoid((*p)->direct_reference)) &&
147 (type = z_ext_getentbyref(oid->value)))
149 int zclass, tag, cons;
152 * We know it. If it's represented as an ASN.1 type, bias the CHOICE.
154 if (!odr_peektag(o, &zclass, &tag, &cons))
155 return opt && odr_ok(o);
156 if (zclass == ODR_CONTEXT && tag == 0 && cons == 1)
157 odr_choice_bias(o, type->what);
160 odr_choice(o, arm, &(*p)->u, &(*p)->which, name) &&
164 Z_External *z_ext_record(ODR o, int format, const char *buf, int len)
168 thisext = (Z_External *) odr_malloc(o, sizeof(*thisext));
169 thisext->descriptor = 0;
170 thisext->indirect_reference = 0;
172 thisext->direct_reference =
173 yaz_oidval_to_z3950oid (o, CLASS_RECSYN, format);
174 if (!thisext->direct_reference)
177 if (len < 0) /* Structured data */
181 * We cheat on the pointers here. Obviously, the record field
182 * of the backend-fetch structure should have been a union for
183 * correctness, but we're stuck with this for backwards
186 thisext->u.grs1 = (Z_GenericRecord*) buf;
191 thisext->which = Z_External_sutrs;
194 thisext->which = Z_External_grs1;
197 thisext->which = Z_External_explainRecord;
200 thisext->which = Z_External_summary;
203 thisext->which = Z_External_OPAC;
206 thisext->which = Z_External_extendedService;
212 else if (format == VAL_SUTRS) /* SUTRS is a single-ASN.1-type */
214 Odr_oct *sutrs = (Odr_oct *)odr_malloc(o, sizeof(*sutrs));
216 thisext->which = Z_External_sutrs;
217 thisext->u.sutrs = sutrs;
218 sutrs->buf = (unsigned char *)odr_malloc(o, len);
219 sutrs->len = sutrs->size = len;
220 memcpy(sutrs->buf, buf, len);
224 thisext->which = Z_External_octet;
225 if (!(thisext->u.octet_aligned = (Odr_oct *)
226 odr_malloc(o, sizeof(Odr_oct))))
228 if (!(thisext->u.octet_aligned->buf = (unsigned char *)
231 memcpy(thisext->u.octet_aligned->buf, buf, len);
232 thisext->u.octet_aligned->len = thisext->u.octet_aligned->size = len;