2 * Copyright (c) 1995-1999, Index Data.
4 * Permission to use, copy, modify, distribute, and sell this software and
5 * its documentation, in whole or in part, for any purpose, is hereby granted,
8 * 1. This copyright and permission notice appear in all copies of the
9 * software and its documentation. Notices of copyright or attribution
10 * which appear at the beginning of any file must remain unchanged.
12 * 2. The name of Index Data or the individual authors may not be used to
13 * endorse or promote products derived from this software without specific
14 * prior written permission.
16 * THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT WARRANTY OF ANY KIND,
17 * EXPRESS, IMPLIED, OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
18 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
19 * IN NO EVENT SHALL INDEX DATA BE LIABLE FOR ANY SPECIAL, INCIDENTAL,
20 * INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES
21 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER OR
22 * NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
23 * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
26 * $Id: odr.h,v 1.29 1999-04-20 09:56:48 adam Exp $
50 #define ODR_IMPLICIT 0
51 #define ODR_EXPLICIT 1
56 #define ODR_UNIVERSAL 0
57 #define ODR_APPLICATION 1
66 #define ODR_BITSTRING 3
67 #define ODR_OCTETSTRING 4
71 #define ODR_EXTERNAL 8
74 #define ODR_SEQUENCE 16
76 #define ODR_NUMERICSTRING 18
77 #define ODR_PRINTABLESTRING 19
78 #define ODR_GENERALIZEDTIME 24
79 #define ODR_GRAPHICSTRING 25
80 #define ODR_VISIBLESTRING 26
81 #define ODR_GENERALSTRING 27
84 * odr stream directions
90 typedef struct odr_oct
97 typedef void Odr_null;
98 extern Odr_null *ODR_NULLVAL;
100 typedef Odr_oct Odr_any;
102 typedef struct odr_bitmask
104 #define ODR_BITMASK_SIZE 256
105 unsigned char bits[ODR_BITMASK_SIZE];
109 typedef int Odr_oid; /* terminate by -1 */
111 typedef struct odr_constack
113 const unsigned char *base; /* starting point of data */
115 int len; /* length of data, if known, else -1
117 const unsigned char *lenb; /* where to encode length */
119 int lenlen; /* length of length-field */
126 typedef struct odr_ecblock
128 int can_grow; /* are we allowed to reallocate */
129 unsigned char *buf; /* memory handle */
130 int pos; /* current position */
131 int top; /* top of buffer */
132 int size; /* current buffer size */
135 typedef struct { /* used to be statics in ber_tag... */
144 int direction; /* the direction of this stream */
146 int error; /* current error state (0==OK) */
147 const unsigned char *buf; /* for encoding or decoding */
148 int buflen; /* size of buffer for encoding, len for decoding */
149 const unsigned char *bp; /* position in buffer */
150 int left; /* bytes remaining in buffer */
152 odr_ecblock ecb; /* memory control block */
154 int t_class; /* implicit tagging (-1==default tag) */
157 int enable_bias; /* force choice enable flag */
158 int choice_bias; /* force choice */
159 int lenlen; /* force length-of-lenght (odr_setlen()) */
161 FILE *print; /* output file for direction print */
162 int indent; /* current indent level for printing */
164 NMEM mem; /* memory handle for decoding (primarily) */
166 /* stack for constructed types */
167 #define ODR_MAX_STACK 50
168 int stackp; /* top of stack (-1 == initial state) */
169 odr_constack stack[ODR_MAX_STACK];
171 Odr_ber_tag odr_ber_tag;
174 typedef int (*Odr_fun)(ODR, char **, int, const char *);
176 typedef struct odr_arm
194 #define OUNEXPECTED 5
202 extern char *odr_errlist[];
204 YAZ_EXPORT int odr_geterror(ODR o);
205 YAZ_EXPORT void odr_perror(ODR o, char *message);
206 YAZ_EXPORT void odr_setprint(ODR o, FILE *file);
207 YAZ_EXPORT ODR odr_createmem(int direction);
208 YAZ_EXPORT void odr_reset(ODR o);
209 YAZ_EXPORT void odr_destroy(ODR o);
210 YAZ_EXPORT void odr_setbuf(ODR o, char *buf, int len, int can_grow);
211 YAZ_EXPORT char *odr_getbuf(ODR o, int *len, int *size);
212 YAZ_EXPORT void *odr_malloc(ODR o, int size);
213 YAZ_EXPORT char *odr_strdup(ODR o, const char *str);
214 YAZ_EXPORT NMEM odr_extract_mem(ODR o);
215 YAZ_EXPORT Odr_null *odr_nullval(void);
216 #define odr_release_mem(m) nmem_destroy(m)
219 #define odr_implicit(o, t, p, cl, tg, opt)\
220 (odr_implicit_settag((o), cl, tg), t ((o), (p), (opt), 0) )
222 #define odr_implicit_tag(o, t, p, cl, tg, opt, name)\
223 (odr_implicit_settag((o), cl, tg), t ((o), (p), (opt), name) )
225 #define odr_explicit(o, t, p, cl, tg, opt)\
226 ((int) (odr_constructed_begin((o), (p), (cl), (tg), 0) ? \
227 t ((o), (p), (opt), 0) &&\
228 odr_constructed_end(o) : opt))
230 #define odr_explicit_tag(o, t, p, cl, tg, opt, name)\
231 ((int) (odr_constructed_begin((o), (p), (cl), (tg), 0) ? \
232 t ((o), (p), (opt), name) &&\
233 odr_constructed_end(o) : opt))
235 #define ODR_MASK_ZERO(mask)\
236 ((void) (memset((mask)->bits, 0, ODR_BITMASK_SIZE),\
239 #define ODR_MASK_SET(mask, num)\
240 (((mask)->bits[(num) >> 3] |= 0X80 >> ((num) & 0X07)),\
241 (mask)->top < (num) >> 3 ? ((mask)->top = (num) >> 3) : 0)
243 #define ODR_MASK_CLEAR(mask, num)\
244 ((mask)->bits[(num) >> 3] &= ~(0X80 >> ((num) & 0X07)))
246 #define ODR_MASK_GET(mask, num) ( ((num) >> 3 <= (mask)->top) ? \
247 ((mask)->bits[(num) >> 3] & (0X80 >> ((num) & 0X07)) ? 1 : 0) : 0)
250 * write a single character at the current position - grow buffer if
252 * (no, we're not usually this anal about our macros, but this baby is
253 * next to unreadable without some indentation :)
255 #define odr_putc(o, c) \
258 (o)->ecb.pos < (o)->ecb.size ? \
260 (o)->ecb.buf[(o)->ecb.pos++] = (c), \
264 odr_grow_block(&(o)->ecb, 1) == 0 ? \
266 (o)->ecb.buf[(o)->ecb.pos++] = (c), \
270 (o)->error = OSPACE, \
276 (o)->ecb.pos > (o)->ecb.top ? \
278 (o)->ecb.top = (o)->ecb.pos, \
286 #define odr_tell(o) ((o)->ecb.pos)
287 #define odr_offset(o) ((o)->bp - (o)->buf)
288 #define odr_ok(o) (!(o)->error)
289 #define odr_getmem(o) ((o)->mem)
290 #define odr_setmem(o, v) ((o)->mem = (v))
292 #define ODR_MAXNAME 256
294 YAZ_EXPORT int ber_boolean(ODR o, int *val);
295 YAZ_EXPORT int ber_tag(ODR o, void *p, int zclass, int tag,
296 int *constructed, int opt);
297 YAZ_EXPORT int ber_enctag(ODR o, int zclass, int tag, int constructed);
298 YAZ_EXPORT int ber_dectag(const unsigned char *buf, int *zclass,
299 int *tag, int *constructed);
300 YAZ_EXPORT int odr_bool(ODR o, int **p, int opt, const char *name);
301 YAZ_EXPORT int odr_integer(ODR o, int **p, int opt, const char *name);
302 YAZ_EXPORT int odr_enum(ODR o, int **p, int opt, const char *name);
303 YAZ_EXPORT int odr_implicit_settag(ODR o, int zclass, int tag);
304 YAZ_EXPORT int ber_enclen(ODR o, int len, int lenlen, int exact);
305 YAZ_EXPORT int ber_declen(const unsigned char *buf, int *len);
306 YAZ_EXPORT void odr_prname(ODR o, const char *name);
307 YAZ_EXPORT int ber_null(ODR o);
308 YAZ_EXPORT int odr_null(ODR o, Odr_null **p, int opt, const char *name);
309 YAZ_EXPORT int ber_integer(ODR o, int *val);
310 YAZ_EXPORT int odr_constructed_begin(ODR o, void *p, int zclass, int tag,
312 YAZ_EXPORT int odr_constructed_end(ODR o);
313 YAZ_EXPORT int odr_sequence_begin(ODR o, void *p, int size, const char *name);
314 YAZ_EXPORT int odr_set_begin(ODR o, void *p, int size, const char *name);
315 YAZ_EXPORT int odr_sequence_end(ODR o);
316 YAZ_EXPORT int odr_set_end(ODR o);
317 YAZ_EXPORT int ber_octetstring(ODR o, Odr_oct *p, int cons);
318 YAZ_EXPORT int odr_octetstring(ODR o, Odr_oct **p, int opt, const char *name);
319 YAZ_EXPORT int odp_more_chunks(ODR o, const unsigned char *base, int len);
320 YAZ_EXPORT int odr_constructed_more(ODR o);
321 YAZ_EXPORT int odr_bitstring(ODR o, Odr_bitmask **p, int opt,
323 YAZ_EXPORT int ber_bitstring(ODR o, Odr_bitmask *p, int cons);
324 YAZ_EXPORT int odr_generalstring(ODR o, char **p, int opt, const char *name);
325 YAZ_EXPORT int ber_oidc(ODR o, Odr_oid *p);
326 YAZ_EXPORT int odr_oid(ODR o, Odr_oid **p, int opt, const char *name);
327 YAZ_EXPORT int odr_choice(ODR o, Odr_arm arm[], void *p, void *whichp,
329 YAZ_EXPORT int odr_cstring(ODR o, char **p, int opt, const char *name);
330 YAZ_EXPORT int odr_sequence_of(ODR o, Odr_fun type, void *p, int *num,
332 YAZ_EXPORT int odr_set_of(ODR o, Odr_fun type, void *p, int *num,
334 YAZ_EXPORT int odr_any(ODR o, Odr_any **p, int opt, const char *name);
335 YAZ_EXPORT int ber_any(ODR o, Odr_any **p);
336 YAZ_EXPORT int completeBER(const unsigned char *buf, int len);
337 YAZ_EXPORT void odr_begin(ODR o);
338 YAZ_EXPORT void odr_end(ODR o);
339 YAZ_EXPORT Odr_oid *odr_oiddup(ODR odr, Odr_oid *o);
340 YAZ_EXPORT Odr_oid *odr_oiddup_nmem(NMEM nmem, Odr_oid *o);
341 YAZ_EXPORT int odr_grow_block(odr_ecblock *b, int min_bytes);
342 YAZ_EXPORT int odr_write(ODR o, unsigned char *buf, int bytes);
343 YAZ_EXPORT int odr_seek(ODR o, int whence, int offset);
344 YAZ_EXPORT int odr_dumpBER(FILE *f, const char *buf, int len);
345 YAZ_EXPORT void odr_choice_bias(ODR o, int what);
346 YAZ_EXPORT void odr_choice_enable_bias(ODR o, int mode);
347 YAZ_EXPORT int odr_total(ODR o);
348 YAZ_EXPORT char *odr_errmsg(int n);
349 YAZ_EXPORT Odr_oid *odr_getoidbystr(ODR o, char *str);
350 YAZ_EXPORT Odr_oid *odr_getoidbystr_nmem(NMEM o, char *str);
351 YAZ_EXPORT int odr_initmember(ODR o, void *p, int size);
352 YAZ_EXPORT int odr_peektag(ODR o, int *zclass, int *tag, int *cons);
353 YAZ_EXPORT void odr_setlenlen(ODR o, int len);