2 * Copyright (c) 1995-1997, 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
27 * Revision 1.23 1997-09-01 08:49:49 adam
28 * New windows NT/95 port using MSV5.0. To export DLL functions the
29 * YAZ_EXPORT modifier was added. Defined in yconfig.h.
31 * Revision 1.22 1997/07/21 12:44:30 adam
32 * Moved definitions of nmem_block and nmem_control.
34 * Revision 1.21 1997/05/14 06:53:41 adam
37 * Revision 1.20 1997/04/30 08:52:08 quinn
40 * Revision 1.19 1996/10/08 12:58:08 adam
41 * New ODR function, odr_choice_enable_bias, to control behaviour of
44 * Revision 1.18 1996/07/26 13:38:14 quinn
45 * Various smaller things. Gathered header-files.
47 * Revision 1.17 1995/11/08 17:41:27 quinn
50 * Revision 1.16 1995/11/01 13:54:36 quinn
53 * Revision 1.15 1995/10/18 16:12:36 quinn
56 * Revision 1.14 1995/09/29 17:12:04 quinn
59 * Revision 1.13 1995/09/29 17:01:49 quinn
62 * Revision 1.12 1995/09/27 15:02:48 quinn
63 * Modified function heads & prototypes.
65 * Revision 1.11 1995/08/15 12:00:09 quinn
68 * Revision 1.10 1995/08/10 08:54:33 quinn
71 * Revision 1.9 1995/06/19 12:38:26 quinn
72 * Reorganized include-files. Added small features.
74 * Revision 1.8 1995/06/16 13:16:04 quinn
75 * Fixed Defaultdiagformat.
77 * Revision 1.7 1995/05/29 08:11:32 quinn
78 * Moved oid from odr/asn to util.
80 * Revision 1.6 1995/05/22 14:47:00 quinn
81 * ODR_NULLVAL --> void
83 * Revision 1.5 1995/05/22 11:31:24 quinn
86 * Revision 1.4 1995/05/16 08:50:33 quinn
87 * License, documentation, and memory fixes
89 * Revision 1.3 1995/05/15 11:55:54 quinn
90 * Work on asynchronous activity.
92 * Revision 1.2 1995/04/18 08:14:37 quinn
93 * Added dynamic memory allocation on encoding
95 * Revision 1.1 1995/03/30 09:39:41 quinn
96 * Moved .h files to include directory
98 * Revision 1.15 1995/03/29 15:39:57 quinn
99 * Fixed bugs in the bitmask operations
101 * Revision 1.14 1995/03/27 08:33:15 quinn
102 * Added more OID utilities.
104 * Revision 1.13 1995/03/17 10:17:44 quinn
105 * Added memory management.
107 * Revision 1.12 1995/03/14 10:27:38 quinn
108 * Modified makefile to use common lib
109 * Beginning to add memory management to odr
111 * Revision 1.11 1995/03/10 11:44:41 quinn
112 * Fixed serious stack-bug in odr_cons_begin
114 * Revision 1.10 1995/03/08 12:12:16 quinn
115 * Added better error checking.
117 * Revision 1.9 1995/03/07 10:10:00 quinn
118 * Added some headers for Adam.
120 * Revision 1.8 1995/03/07 09:23:16 quinn
121 * Installing top-level API and documentation.
123 * Revision 1.7 1995/02/10 15:55:29 quinn
126 * Revision 1.6 1995/02/09 15:51:47 quinn
129 * Revision 1.5 1995/02/07 17:52:59 quinn
130 * A damn mess, but now things work, I think.
132 * Revision 1.4 1995/02/06 16:45:03 quinn
135 * Revision 1.3 1995/02/03 17:04:36 quinn
136 * *** empty log message ***
138 * Revision 1.2 1995/02/02 20:38:50 quinn
141 * Revision 1.1 1995/02/02 16:21:53 quinn
167 #define ODR_IMPLICIT 0
168 #define ODR_EXPLICIT 1
173 #define ODR_UNIVERSAL 0
174 #define ODR_APPLICATION 1
175 #define ODR_CONTEXT 2
176 #define ODR_PRIVATE 3
181 #define ODR_BOOLEAN 1
182 #define ODR_INTEGER 2
183 #define ODR_BITSTRING 3
184 #define ODR_OCTETSTRING 4
188 #define ODR_EXTERNAL 8
191 #define ODR_SEQUENCE 16
193 #define ODR_NUMERICSTRING 18
194 #define ODR_PRINTABLESTRING 19
195 #define ODR_GENERALIZEDTIME 24
196 #define ODR_GRAPHICSTRING 25
197 #define ODR_VISIBLESTRING 26
198 #define ODR_GENERALSTRING 27
201 * odr stream directions
207 typedef struct odr_oct
214 typedef void Odr_null;
215 extern Odr_null *ODR_NULLVAL;
217 typedef Odr_oct Odr_any;
219 typedef struct odr_bitmask
221 #define ODR_BITMASK_SIZE 256
222 unsigned char bits[ODR_BITMASK_SIZE];
226 typedef int Odr_oid; /* terminate by -1 */
228 typedef struct odr_constack
230 unsigned char *base; /* starting point of data */
232 int len; /* length of data, if known, else -1
234 unsigned char *lenb; /* where to encode length */
236 int lenlen; /* length of length-field */
243 typedef struct odr_ecblock
245 int can_grow; /* are we allowed to reallocate */
246 unsigned char *buf; /* memory handle */
247 int pos; /* current position */
248 int top; /* top of buffer */
249 int size; /* current buffer size */
252 typedef struct { /* used to be statics in ber_tag... */
261 int direction; /* the direction of this stream */
263 int error; /* current error state (0==OK) */
264 unsigned char *buf; /* for encoding or decoding */
265 int buflen; /* size of buffer for encoding, len for decoding */
266 unsigned char *bp; /* position in buffer */
267 int left; /* bytes remaining in buffer */
269 odr_ecblock ecb; /* memory control block */
271 int t_class; /* implicit tagging (-1==default tag) */
274 int enable_bias; /* force choice enable flag */
275 int choice_bias; /* force choice */
276 int lenlen; /* force length-of-lenght (odr_setlen()) */
278 FILE *print; /* output file for direction print */
279 int indent; /* current indent level for printing */
281 NMEM mem; /* memory handle for decoding (primarily) */
283 /* stack for constructed types */
284 #define ODR_MAX_STACK 50
285 int stackp; /* top of stack (-1 == initial state) */
286 odr_constack stack[ODR_MAX_STACK];
288 Odr_ber_tag odr_ber_tag;
291 typedef int (*Odr_fun)();
293 typedef struct odr_arm
310 #define OUNEXPECTED 5
318 extern char *odr_errlist[];
320 YAZ_EXPORT int odr_geterror(ODR o);
321 YAZ_EXPORT void odr_perror(ODR o, char *message);
322 YAZ_EXPORT void odr_setprint(ODR o, FILE *file);
323 YAZ_EXPORT ODR odr_createmem(int direction);
324 YAZ_EXPORT void odr_reset(ODR o);
325 YAZ_EXPORT void odr_destroy(ODR o);
326 YAZ_EXPORT void odr_setbuf(ODR o, char *buf, int len, int can_grow);
327 YAZ_EXPORT char *odr_getbuf(ODR o, int *len, int *size);
328 YAZ_EXPORT void *odr_malloc(ODR o, int size);
329 YAZ_EXPORT NMEM odr_extract_mem(ODR o);
330 #define odr_release_mem(m) nmem_destroy(m)
333 #define odr_implicit(o, t, p, cl, tg, opt)\
334 (odr_implicit_settag((o), cl, tg), t ((o), (p), opt) )
336 #define odr_explicit(o, t, p, cl, tg, opt)\
337 ((int) (odr_constructed_begin((o), (p), (cl), (tg)) ? \
338 t ((o), (p), (opt)) &&\
339 odr_constructed_end(o) : opt))
341 #define ODR_MASK_ZERO(mask)\
342 ((void) (memset((mask)->bits, 0, ODR_BITMASK_SIZE),\
345 #define ODR_MASK_SET(mask, num)\
346 (((mask)->bits[(num) >> 3] |= 0X80 >> ((num) & 0X07)),\
347 (mask)->top < (num) >> 3 ? ((mask)->top = (num) >> 3) : 0)
349 #define ODR_MASK_CLEAR(mask, num)\
350 ((mask)->bits[(num) >> 3] &= ~(0X80 >> ((num) & 0X07)))
352 #define ODR_MASK_GET(mask, num) ( ((num) >> 3 <= (mask)->top) ? \
353 ((mask)->bits[(num) >> 3] & (0X80 >> ((num) & 0X07)) ? 1 : 0) : 0)
356 * write a single character at the current position - grow buffer if
358 * (no, we're not usually this anal about our macros, but this baby is
359 * next to unreadable without some indentation :)
361 #define odr_putc(o, c) \
364 (o)->ecb.pos < (o)->ecb.size ? \
366 (o)->ecb.buf[(o)->ecb.pos++] = (c), \
370 odr_grow_block(&(o)->ecb, 1) == 0 ? \
372 (o)->ecb.buf[(o)->ecb.pos++] = (c), \
376 (o)->error = OSPACE, \
382 (o)->ecb.pos > (o)->ecb.top ? \
384 (o)->ecb.top = (o)->ecb.pos, \
392 #define odr_tell(o) ((o)->ecb.pos)
393 #define odr_offset(o) ((o)->bp - (o)->buf)
394 #define odr_ok(o) (!(o)->error)
395 #define odr_getmem(o) ((o)->mem)
396 #define odr_setmem(o, v) ((o)->mem = (v))
398 #define ODR_MAXNAME 256