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27 /* $Id: odr.h,v 1.27 2007-04-12 13:52:57 adam Exp $ */
31 * \brief Header for ODR (Open Data Representation)
40 #include <yaz/yconfig.h>
53 #define ODR_IMPLICIT 0
54 #define ODR_EXPLICIT 1
59 #define ODR_UNIVERSAL 0
60 #define ODR_APPLICATION 1
69 #define ODR_BITSTRING 3
70 #define ODR_OCTETSTRING 4
74 #define ODR_EXTERNAL 8
77 #define ODR_SEQUENCE 16
79 #define ODR_NUMERICSTRING 18
80 #define ODR_PRINTABLESTRING 19
81 #define ODR_GENERALIZEDTIME 24
82 #define ODR_GRAPHICSTRING 25
83 #define ODR_VISIBLESTRING 26
84 #define ODR_GENERALSTRING 27
87 * odr stream directions
93 typedef struct odr_oct
100 typedef void Odr_null;
101 extern Odr_null *ODR_NULLVAL;
103 typedef Odr_oct Odr_any;
105 typedef struct odr_bitmask
107 #define ODR_BITMASK_SIZE 256
108 unsigned char bits[ODR_BITMASK_SIZE];
112 typedef int Odr_oid; /* terminate by -1 */
118 typedef struct odr *ODR;
120 /** ODR handle and the public structs */
123 int direction; /* the direction of this stream */
125 int error; /* current error state (0==OK) */
127 unsigned char *buf; /* memory handle */
128 int top; /* top of buffer (max pos when encoding) */
129 int size; /* current buffer size (encoding+decoding) */
131 int pos; /* current position (encoding) */
133 const unsigned char *bp; /* position in buffer (decoding) */
135 NMEM mem; /* memory handle for decoding (primarily) */
137 struct Odr_private *op;
140 typedef int (*Odr_fun)(ODR, char **, int, const char *);
142 typedef struct odr_arm
160 #define OUNEXPECTED 5
169 extern char *odr_errlist[];
171 YAZ_EXPORT int odr_geterror(ODR o);
172 YAZ_EXPORT int odr_geterrorx(ODR o, int *x);
173 YAZ_EXPORT void odr_seterror(ODR o, int errorno, int errorid);
174 YAZ_EXPORT void odr_setelement(ODR o, const char *addinfo);
175 YAZ_EXPORT const char *odr_getelement(ODR o);
176 YAZ_EXPORT void odr_perror(ODR o, const char *message);
177 YAZ_EXPORT void odr_setprint(ODR o, FILE *file);
178 YAZ_EXPORT ODR odr_createmem(int direction);
179 YAZ_EXPORT void odr_reset(ODR o);
180 YAZ_EXPORT void odr_destroy(ODR o);
181 YAZ_EXPORT void odr_setbuf(ODR o, char *buf, int len, int can_grow);
182 YAZ_EXPORT char *odr_getbuf(ODR o, int *len, int *size);
183 YAZ_EXPORT void *odr_malloc(ODR o, int size);
184 YAZ_EXPORT char *odr_strdup(ODR o, const char *str);
185 YAZ_EXPORT char *odr_strdupn(ODR o, const char *str, size_t n);
186 YAZ_EXPORT int *odr_intdup(ODR o, int v);
187 YAZ_EXPORT Odr_oct *odr_create_Odr_oct(ODR o, const unsigned char *buf,
189 YAZ_EXPORT NMEM odr_extract_mem(ODR o);
190 YAZ_EXPORT Odr_null *odr_nullval(void);
191 #define odr_release_mem(m) nmem_destroy(m)
194 #define odr_implicit_tag(o, t, p, cl, tg, opt, name)\
195 (odr_implicit_settag((o), cl, tg), t ((o), (p), (opt), name) )
197 #define odr_explicit_tag(o, t, p, cl, tg, opt, name)\
198 ((int) (odr_constructed_begin((o), (p), (cl), (tg), 0) ? \
199 t ((o), (p), (opt), name) &&\
200 odr_constructed_end(o) : odr_missing((o), opt, name)))
202 #define ODR_MASK_ZERO(mask)\
203 ((void) (memset((mask)->bits, 0, ODR_BITMASK_SIZE),\
206 #define ODR_MASK_SET(mask, num)\
207 (((mask)->bits[(num) >> 3] |= 0X80 >> ((num) & 0X07)),\
208 (mask)->top < (num) >> 3 ? ((mask)->top = (num) >> 3) : 0)
210 #define ODR_MASK_CLEAR(mask, num)\
211 ((mask)->bits[(num) >> 3] &= ~(0X80 >> ((num) & 0X07)))
213 #define ODR_MASK_GET(mask, num) ( ((num) >> 3 <= (mask)->top) ? \
214 ((mask)->bits[(num) >> 3] & (0X80 >> ((num) & 0X07)) ? 1 : 0) : 0)
217 #define odr_tell(o) ((o)->pos)
218 #define odr_offset(o) ((o)->bp - (o)->buf)
219 #define odr_ok(o) (!(o)->error)
220 #define odr_getmem(o) ((o)->mem)
222 #define ODR_MAXNAME 256
224 YAZ_EXPORT int ber_boolean(ODR o, int *val);
225 YAZ_EXPORT int ber_tag(ODR o, void *p, int zclass, int tag,
226 int *constructed, int opt, const char *name);
227 YAZ_EXPORT int ber_enctag(ODR o, int zclass, int tag, int constructed);
228 YAZ_EXPORT int ber_dectag(const unsigned char *buf, int *zclass,
229 int *tag, int *constructed, int max);
230 YAZ_EXPORT int odr_bool(ODR o, int **p, int opt, const char *name);
231 YAZ_EXPORT int odr_integer(ODR o, int **p, int opt, const char *name);
232 YAZ_EXPORT int odr_enum(ODR o, int **p, int opt, const char *name);
233 YAZ_EXPORT int odr_implicit_settag(ODR o, int zclass, int tag);
234 YAZ_EXPORT int ber_enclen(ODR o, int len, int lenlen, int exact);
235 YAZ_EXPORT int ber_declen(const unsigned char *buf, int *len, int max);
236 YAZ_EXPORT void odr_prname(ODR o, const char *name);
237 YAZ_EXPORT int ber_null(ODR o);
238 YAZ_EXPORT int odr_null(ODR o, Odr_null **p, int opt, const char *name);
239 YAZ_EXPORT int ber_integer(ODR o, int *val);
240 YAZ_EXPORT int odr_constructed_begin(ODR o, void *p, int zclass, int tag,
242 YAZ_EXPORT int odr_constructed_end(ODR o);
243 YAZ_EXPORT int odr_sequence_begin(ODR o, void *p, int size, const char *name);
244 YAZ_EXPORT int odr_set_begin(ODR o, void *p, int size, const char *name);
245 YAZ_EXPORT int odr_sequence_end(ODR o);
246 YAZ_EXPORT int odr_set_end(ODR o);
247 YAZ_EXPORT int ber_octetstring(ODR o, Odr_oct *p, int cons);
248 YAZ_EXPORT int odr_octetstring(ODR o, Odr_oct **p, int opt, const char *name);
249 YAZ_EXPORT int odp_more_chunks(ODR o, const unsigned char *base, int len);
250 YAZ_EXPORT int odr_constructed_more(ODR o);
251 YAZ_EXPORT int odr_bitstring(ODR o, Odr_bitmask **p, int opt,
253 YAZ_EXPORT int ber_bitstring(ODR o, Odr_bitmask *p, int cons);
254 YAZ_EXPORT int odr_generalstring(ODR o, char **p, int opt, const char *name);
255 YAZ_EXPORT int ber_oidc(ODR o, Odr_oid *p, int max_oid_size);
256 YAZ_EXPORT int odr_oid(ODR o, Odr_oid **p, int opt, const char *name);
257 YAZ_EXPORT int odr_choice(ODR o, Odr_arm arm[], void *p, void *whichp,
259 YAZ_EXPORT int odr_cstring(ODR o, char **p, int opt, const char *name);
260 YAZ_EXPORT int odr_iconv_string(ODR o, char **p, int opt, const char *name);
261 YAZ_EXPORT int odr_sequence_of(ODR o, Odr_fun type, void *p, int *num,
263 YAZ_EXPORT int odr_set_of(ODR o, Odr_fun type, void *p, int *num,
265 YAZ_EXPORT int odr_any(ODR o, Odr_any **p, int opt, const char *name);
267 YAZ_EXPORT int ber_any(ODR o, Odr_any **p);
268 /** \brief determine whether a buffer is a complete BER buffer
269 \param buf BER buffer
270 \param len length of buffer
271 \retval 0 package is incomplete
272 \retval >0 package is complete and length is return value
274 YAZ_EXPORT int completeBER(const unsigned char *buf, int len);
276 YAZ_EXPORT void odr_begin(ODR o);
277 YAZ_EXPORT void odr_end(ODR o);
278 YAZ_EXPORT Odr_oid *odr_oiddup(ODR odr, const Odr_oid *o);
279 YAZ_EXPORT Odr_oid *odr_oiddup_nmem(NMEM nmem, const Odr_oid *o);
280 YAZ_EXPORT int odr_grow_block(ODR b, int min_bytes);
281 YAZ_EXPORT int odr_write(ODR o, unsigned char *buf, int bytes);
282 YAZ_EXPORT int odr_seek(ODR o, int whence, int offset);
283 YAZ_EXPORT int odr_dumpBER(FILE *f, const char *buf, int len);
284 YAZ_EXPORT void odr_choice_bias(ODR o, int what);
285 YAZ_EXPORT void odr_choice_enable_bias(ODR o, int mode);
286 YAZ_EXPORT int odr_total(ODR o);
287 YAZ_EXPORT char *odr_errmsg(int n);
288 YAZ_EXPORT Odr_oid *odr_getoidbystr(ODR o, const char *str);
289 YAZ_EXPORT Odr_oid *odr_getoidbystr_nmem(NMEM o, const char *str);
291 YAZ_EXPORT int odr_initmember(ODR o, void *p, int size);
292 YAZ_EXPORT int odr_peektag(ODR o, int *zclass, int *tag, int *cons);
293 YAZ_EXPORT void odr_setlenlen(ODR o, int len);
294 YAZ_EXPORT int odr_missing(ODR o, int opt, const char *name);
295 YAZ_EXPORT char *odr_prepend(ODR o, const char *prefix, const char *old);
297 typedef struct Odr_external
299 Odr_oid *direct_reference; /* OPTIONAL */
300 int *indirect_reference; /* OPTIONAL */
301 char *descriptor; /* OPTIONAL */
303 #define ODR_EXTERNAL_single 0
304 #define ODR_EXTERNAL_octet 1
305 #define ODR_EXTERNAL_arbitrary 2
308 Odr_any *single_ASN1_type;
309 Odr_oct *octet_aligned;
310 Odr_bitmask *arbitrary; /* we aren't really equipped for this*/
314 YAZ_EXPORT int odr_external(ODR o, Odr_external **p, int opt,
316 YAZ_EXPORT int odr_visiblestring(ODR o, char **p, int opt,
318 YAZ_EXPORT int odr_graphicstring(ODR o, char **p, int opt,
320 YAZ_EXPORT int odr_generalizedtime(ODR o, char **p, int opt,
323 YAZ_EXPORT int odr_set_charset(ODR o, const char *to, const char *from);
325 YAZ_EXPORT void odr_set_stream(ODR o, void *handle,
326 void (*stream_write)(ODR o,
331 void (*stream_close)(void *handle));
333 YAZ_EXPORT void odr_printf(ODR o, const char *fmt, ...);
335 YAZ_EXPORT const char **odr_get_element_path(ODR o);
339 #include <yaz/xmalloc.h>
345 * indent-tabs-mode: nil
347 * vim: shiftwidth=4 tabstop=8 expandtab