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27 /* $Id: odr.h,v 1.25 2007-01-03 08:42:14 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 */
120 int direction; /* the direction of this stream */
122 int error; /* current error state (0==OK) */
124 int can_grow; /* are we allowed to reallocate */
125 unsigned char *buf; /* memory handle */
126 int size; /* current buffer size (encoding+decoding) */
128 int pos; /* current position (encoding) */
129 int top; /* top of buffer (max pos when encoding) */
131 const unsigned char *bp; /* position in buffer (decoding) */
133 int t_class; /* implicit tagging (-1==default tag) */
136 int enable_bias; /* force choice enable flag */
137 int choice_bias; /* force choice */
138 int lenlen; /* force length-of-lenght (odr_setlen()) */
140 FILE *print; /* output file handler for direction print */
141 int indent; /* current indent level for printing */
143 NMEM mem; /* memory handle for decoding (primarily) */
145 struct Odr_private *op;
148 typedef int (*Odr_fun)(ODR, char **, int, const char *);
150 typedef struct odr_arm
168 #define OUNEXPECTED 5
177 extern char *odr_errlist[];
179 YAZ_EXPORT int odr_geterror(ODR o);
180 YAZ_EXPORT int odr_geterrorx(ODR o, int *x);
181 YAZ_EXPORT void odr_seterror(ODR o, int errorno, int errorid);
182 YAZ_EXPORT void odr_setelement(ODR o, const char *addinfo);
183 YAZ_EXPORT const char *odr_getelement(ODR o);
184 YAZ_EXPORT void odr_perror(ODR o, const char *message);
185 YAZ_EXPORT void odr_setprint(ODR o, FILE *file);
186 YAZ_EXPORT ODR odr_createmem(int direction);
187 YAZ_EXPORT void odr_reset(ODR o);
188 YAZ_EXPORT void odr_destroy(ODR o);
189 YAZ_EXPORT void odr_setbuf(ODR o, char *buf, int len, int can_grow);
190 YAZ_EXPORT char *odr_getbuf(ODR o, int *len, int *size);
191 YAZ_EXPORT void *odr_malloc(ODR o, int size);
192 YAZ_EXPORT char *odr_strdup(ODR o, const char *str);
193 YAZ_EXPORT char *odr_strdupn(ODR o, const char *str, size_t n);
194 YAZ_EXPORT int *odr_intdup(ODR o, int v);
195 YAZ_EXPORT Odr_oct *odr_create_Odr_oct(ODR o, const unsigned char *buf,
197 YAZ_EXPORT NMEM odr_extract_mem(ODR o);
198 YAZ_EXPORT Odr_null *odr_nullval(void);
199 #define odr_release_mem(m) nmem_destroy(m)
202 #define odr_implicit_tag(o, t, p, cl, tg, opt, name)\
203 (odr_implicit_settag((o), cl, tg), t ((o), (p), (opt), name) )
205 #define odr_explicit_tag(o, t, p, cl, tg, opt, name)\
206 ((int) (odr_constructed_begin((o), (p), (cl), (tg), 0) ? \
207 t ((o), (p), (opt), name) &&\
208 odr_constructed_end(o) : odr_missing((o), opt, name)))
210 #define ODR_MASK_ZERO(mask)\
211 ((void) (memset((mask)->bits, 0, ODR_BITMASK_SIZE),\
214 #define ODR_MASK_SET(mask, num)\
215 (((mask)->bits[(num) >> 3] |= 0X80 >> ((num) & 0X07)),\
216 (mask)->top < (num) >> 3 ? ((mask)->top = (num) >> 3) : 0)
218 #define ODR_MASK_CLEAR(mask, num)\
219 ((mask)->bits[(num) >> 3] &= ~(0X80 >> ((num) & 0X07)))
221 #define ODR_MASK_GET(mask, num) ( ((num) >> 3 <= (mask)->top) ? \
222 ((mask)->bits[(num) >> 3] & (0X80 >> ((num) & 0X07)) ? 1 : 0) : 0)
225 #define odr_tell(o) ((o)->pos)
226 #define odr_offset(o) ((o)->bp - (o)->buf)
227 #define odr_ok(o) (!(o)->error)
228 #define odr_getmem(o) ((o)->mem)
229 #define odr_setmem(o, v) ((o)->mem = (v))
231 #define ODR_MAXNAME 256
233 YAZ_EXPORT int ber_boolean(ODR o, int *val);
234 YAZ_EXPORT int ber_tag(ODR o, void *p, int zclass, int tag,
235 int *constructed, int opt, const char *name);
236 YAZ_EXPORT int ber_enctag(ODR o, int zclass, int tag, int constructed);
237 YAZ_EXPORT int ber_dectag(const unsigned char *buf, int *zclass,
238 int *tag, int *constructed, int max);
239 YAZ_EXPORT int odr_bool(ODR o, int **p, int opt, const char *name);
240 YAZ_EXPORT int odr_integer(ODR o, int **p, int opt, const char *name);
241 YAZ_EXPORT int odr_enum(ODR o, int **p, int opt, const char *name);
242 YAZ_EXPORT int odr_implicit_settag(ODR o, int zclass, int tag);
243 YAZ_EXPORT int ber_enclen(ODR o, int len, int lenlen, int exact);
244 YAZ_EXPORT int ber_declen(const unsigned char *buf, int *len, int max);
245 YAZ_EXPORT void odr_prname(ODR o, const char *name);
246 YAZ_EXPORT int ber_null(ODR o);
247 YAZ_EXPORT int odr_null(ODR o, Odr_null **p, int opt, const char *name);
248 YAZ_EXPORT int ber_integer(ODR o, int *val);
249 YAZ_EXPORT int odr_constructed_begin(ODR o, void *p, int zclass, int tag,
251 YAZ_EXPORT int odr_constructed_end(ODR o);
252 YAZ_EXPORT int odr_sequence_begin(ODR o, void *p, int size, const char *name);
253 YAZ_EXPORT int odr_set_begin(ODR o, void *p, int size, const char *name);
254 YAZ_EXPORT int odr_sequence_end(ODR o);
255 YAZ_EXPORT int odr_set_end(ODR o);
256 YAZ_EXPORT int ber_octetstring(ODR o, Odr_oct *p, int cons);
257 YAZ_EXPORT int odr_octetstring(ODR o, Odr_oct **p, int opt, const char *name);
258 YAZ_EXPORT int odp_more_chunks(ODR o, const unsigned char *base, int len);
259 YAZ_EXPORT int odr_constructed_more(ODR o);
260 YAZ_EXPORT int odr_bitstring(ODR o, Odr_bitmask **p, int opt,
262 YAZ_EXPORT int ber_bitstring(ODR o, Odr_bitmask *p, int cons);
263 YAZ_EXPORT int odr_generalstring(ODR o, char **p, int opt, const char *name);
264 YAZ_EXPORT int ber_oidc(ODR o, Odr_oid *p, int max_oid_size);
265 YAZ_EXPORT int odr_oid(ODR o, Odr_oid **p, int opt, const char *name);
266 YAZ_EXPORT int odr_choice(ODR o, Odr_arm arm[], void *p, void *whichp,
268 YAZ_EXPORT int odr_cstring(ODR o, char **p, int opt, const char *name);
269 YAZ_EXPORT int odr_iconv_string(ODR o, char **p, int opt, const char *name);
270 YAZ_EXPORT int odr_sequence_of(ODR o, Odr_fun type, void *p, int *num,
272 YAZ_EXPORT int odr_set_of(ODR o, Odr_fun type, void *p, int *num,
274 YAZ_EXPORT int odr_any(ODR o, Odr_any **p, int opt, const char *name);
276 YAZ_EXPORT int ber_any(ODR o, Odr_any **p);
277 /** \brief determine whether a buffer is a complete BER buffer
278 \param buf BER buffer
279 \param len length of buffer
280 \retval 0 package is incomplete
281 \retval >0 package is complete and length is return value
283 YAZ_EXPORT int completeBER(const unsigned char *buf, int len);
285 YAZ_EXPORT void odr_begin(ODR o);
286 YAZ_EXPORT void odr_end(ODR o);
287 YAZ_EXPORT Odr_oid *odr_oiddup(ODR odr, Odr_oid *o);
288 YAZ_EXPORT Odr_oid *odr_oiddup_nmem(NMEM nmem, Odr_oid *o);
289 YAZ_EXPORT int odr_grow_block(ODR b, int min_bytes);
290 YAZ_EXPORT int odr_write(ODR o, unsigned char *buf, int bytes);
291 YAZ_EXPORT int odr_seek(ODR o, int whence, int offset);
292 YAZ_EXPORT int odr_dumpBER(FILE *f, const char *buf, int len);
293 YAZ_EXPORT void odr_choice_bias(ODR o, int what);
294 YAZ_EXPORT void odr_choice_enable_bias(ODR o, int mode);
295 YAZ_EXPORT int odr_total(ODR o);
296 YAZ_EXPORT char *odr_errmsg(int n);
297 YAZ_EXPORT Odr_oid *odr_getoidbystr(ODR o, const char *str);
298 YAZ_EXPORT Odr_oid *odr_getoidbystr_nmem(NMEM o, const char *str);
300 YAZ_EXPORT int odr_initmember(ODR o, void *p, int size);
301 YAZ_EXPORT int odr_peektag(ODR o, int *zclass, int *tag, int *cons);
302 YAZ_EXPORT void odr_setlenlen(ODR o, int len);
303 YAZ_EXPORT int odr_missing(ODR o, int opt, const char *name);
304 YAZ_EXPORT char *odr_prepend(ODR o, const char *prefix, const char *old);
306 typedef struct Odr_external
308 Odr_oid *direct_reference; /* OPTIONAL */
309 int *indirect_reference; /* OPTIONAL */
310 char *descriptor; /* OPTIONAL */
312 #define ODR_EXTERNAL_single 0
313 #define ODR_EXTERNAL_octet 1
314 #define ODR_EXTERNAL_arbitrary 2
317 Odr_any *single_ASN1_type;
318 Odr_oct *octet_aligned;
319 Odr_bitmask *arbitrary; /* we aren't really equipped for this*/
323 YAZ_EXPORT int odr_external(ODR o, Odr_external **p, int opt,
325 YAZ_EXPORT int odr_visiblestring(ODR o, char **p, int opt,
327 YAZ_EXPORT int odr_graphicstring(ODR o, char **p, int opt,
329 YAZ_EXPORT int odr_generalizedtime(ODR o, char **p, int opt,
332 YAZ_EXPORT int odr_set_charset(ODR o, const char *to, const char *from);
334 YAZ_EXPORT void odr_set_stream(ODR o, void *handle,
335 void (*stream_write)(ODR o,
340 void (*stream_close)(void *handle));
342 YAZ_EXPORT void odr_printf(ODR o, const char *fmt, ...);
344 YAZ_EXPORT const char **odr_get_element_path(ODR o);
348 #include <yaz/xmalloc.h>
354 * indent-tabs-mode: nil
356 * vim: shiftwidth=4 tabstop=8 expandtab