2 * Copyright (c) 1995-1998, 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 1.26 1998-03-20 17:29:20 adam
28 * Include of odr_use.h in odr.h. Added prototype for odr_enum.
30 * Revision 1.25 1998/02/11 11:53:33 adam
31 * Changed code so that it compiles as C++.
33 * Revision 1.24 1997/11/24 11:33:56 adam
34 * Using function odr_nullval() instead of global ODR_NULLVAL when
37 * Revision 1.23 1997/09/01 08:49:49 adam
38 * New windows NT/95 port using MSV5.0. To export DLL functions the
39 * YAZ_EXPORT modifier was added. Defined in yconfig.h.
41 * Revision 1.22 1997/07/21 12:44:30 adam
42 * Moved definitions of nmem_block and nmem_control.
44 * Revision 1.21 1997/05/14 06:53:41 adam
47 * Revision 1.20 1997/04/30 08:52:08 quinn
50 * Revision 1.19 1996/10/08 12:58:08 adam
51 * New ODR function, odr_choice_enable_bias, to control behaviour of
54 * Revision 1.18 1996/07/26 13:38:14 quinn
55 * Various smaller things. Gathered header-files.
57 * Revision 1.17 1995/11/08 17:41:27 quinn
60 * Revision 1.16 1995/11/01 13:54:36 quinn
63 * Revision 1.15 1995/10/18 16:12:36 quinn
66 * Revision 1.14 1995/09/29 17:12:04 quinn
69 * Revision 1.13 1995/09/29 17:01:49 quinn
72 * Revision 1.12 1995/09/27 15:02:48 quinn
73 * Modified function heads & prototypes.
75 * Revision 1.11 1995/08/15 12:00:09 quinn
78 * Revision 1.10 1995/08/10 08:54:33 quinn
81 * Revision 1.9 1995/06/19 12:38:26 quinn
82 * Reorganized include-files. Added small features.
84 * Revision 1.8 1995/06/16 13:16:04 quinn
85 * Fixed Defaultdiagformat.
87 * Revision 1.7 1995/05/29 08:11:32 quinn
88 * Moved oid from odr/asn to util.
90 * Revision 1.6 1995/05/22 14:47:00 quinn
91 * ODR_NULLVAL --> void
93 * Revision 1.5 1995/05/22 11:31:24 quinn
96 * Revision 1.4 1995/05/16 08:50:33 quinn
97 * License, documentation, and memory fixes
99 * Revision 1.3 1995/05/15 11:55:54 quinn
100 * Work on asynchronous activity.
102 * Revision 1.2 1995/04/18 08:14:37 quinn
103 * Added dynamic memory allocation on encoding
105 * Revision 1.1 1995/03/30 09:39:41 quinn
106 * Moved .h files to include directory
108 * Revision 1.15 1995/03/29 15:39:57 quinn
109 * Fixed bugs in the bitmask operations
111 * Revision 1.14 1995/03/27 08:33:15 quinn
112 * Added more OID utilities.
114 * Revision 1.13 1995/03/17 10:17:44 quinn
115 * Added memory management.
117 * Revision 1.12 1995/03/14 10:27:38 quinn
118 * Modified makefile to use common lib
119 * Beginning to add memory management to odr
121 * Revision 1.11 1995/03/10 11:44:41 quinn
122 * Fixed serious stack-bug in odr_cons_begin
124 * Revision 1.10 1995/03/08 12:12:16 quinn
125 * Added better error checking.
127 * Revision 1.9 1995/03/07 10:10:00 quinn
128 * Added some headers for Adam.
130 * Revision 1.8 1995/03/07 09:23:16 quinn
131 * Installing top-level API and documentation.
133 * Revision 1.7 1995/02/10 15:55:29 quinn
136 * Revision 1.6 1995/02/09 15:51:47 quinn
139 * Revision 1.5 1995/02/07 17:52:59 quinn
140 * A damn mess, but now things work, I think.
142 * Revision 1.4 1995/02/06 16:45:03 quinn
145 * Revision 1.3 1995/02/03 17:04:36 quinn
146 * *** empty log message ***
148 * Revision 1.2 1995/02/02 20:38:50 quinn
151 * Revision 1.1 1995/02/02 16:21:53 quinn
177 #define ODR_IMPLICIT 0
178 #define ODR_EXPLICIT 1
183 #define ODR_UNIVERSAL 0
184 #define ODR_APPLICATION 1
185 #define ODR_CONTEXT 2
186 #define ODR_PRIVATE 3
191 #define ODR_BOOLEAN 1
192 #define ODR_INTEGER 2
193 #define ODR_BITSTRING 3
194 #define ODR_OCTETSTRING 4
198 #define ODR_EXTERNAL 8
201 #define ODR_SEQUENCE 16
203 #define ODR_NUMERICSTRING 18
204 #define ODR_PRINTABLESTRING 19
205 #define ODR_GENERALIZEDTIME 24
206 #define ODR_GRAPHICSTRING 25
207 #define ODR_VISIBLESTRING 26
208 #define ODR_GENERALSTRING 27
211 * odr stream directions
217 typedef struct odr_oct
224 typedef void Odr_null;
225 extern Odr_null *ODR_NULLVAL;
227 typedef Odr_oct Odr_any;
229 typedef struct odr_bitmask
231 #define ODR_BITMASK_SIZE 256
232 unsigned char bits[ODR_BITMASK_SIZE];
236 typedef int Odr_oid; /* terminate by -1 */
238 typedef struct odr_constack
240 unsigned char *base; /* starting point of data */
242 int len; /* length of data, if known, else -1
244 unsigned char *lenb; /* where to encode length */
246 int lenlen; /* length of length-field */
253 typedef struct odr_ecblock
255 int can_grow; /* are we allowed to reallocate */
256 unsigned char *buf; /* memory handle */
257 int pos; /* current position */
258 int top; /* top of buffer */
259 int size; /* current buffer size */
262 typedef struct { /* used to be statics in ber_tag... */
271 int direction; /* the direction of this stream */
273 int error; /* current error state (0==OK) */
274 unsigned char *buf; /* for encoding or decoding */
275 int buflen; /* size of buffer for encoding, len for decoding */
276 unsigned char *bp; /* position in buffer */
277 int left; /* bytes remaining in buffer */
279 odr_ecblock ecb; /* memory control block */
281 int t_class; /* implicit tagging (-1==default tag) */
284 int enable_bias; /* force choice enable flag */
285 int choice_bias; /* force choice */
286 int lenlen; /* force length-of-lenght (odr_setlen()) */
288 FILE *print; /* output file for direction print */
289 int indent; /* current indent level for printing */
291 NMEM mem; /* memory handle for decoding (primarily) */
293 /* stack for constructed types */
294 #define ODR_MAX_STACK 50
295 int stackp; /* top of stack (-1 == initial state) */
296 odr_constack stack[ODR_MAX_STACK];
298 Odr_ber_tag odr_ber_tag;
301 typedef int (*Odr_fun)(ODR, char **, int);
303 typedef struct odr_arm
320 #define OUNEXPECTED 5
328 extern char *odr_errlist[];
330 YAZ_EXPORT int odr_geterror(ODR o);
331 YAZ_EXPORT void odr_perror(ODR o, char *message);
332 YAZ_EXPORT void odr_setprint(ODR o, FILE *file);
333 YAZ_EXPORT ODR odr_createmem(int direction);
334 YAZ_EXPORT void odr_reset(ODR o);
335 YAZ_EXPORT void odr_destroy(ODR o);
336 YAZ_EXPORT void odr_setbuf(ODR o, char *buf, int len, int can_grow);
337 YAZ_EXPORT char *odr_getbuf(ODR o, int *len, int *size);
338 YAZ_EXPORT void *odr_malloc(ODR o, int size);
339 YAZ_EXPORT NMEM odr_extract_mem(ODR o);
340 YAZ_EXPORT Odr_null *odr_nullval(void);
341 #define odr_release_mem(m) nmem_destroy(m)
344 #define odr_implicit(o, t, p, cl, tg, opt)\
345 (odr_implicit_settag((o), cl, tg), t ((o), (p), opt) )
347 #define odr_explicit(o, t, p, cl, tg, opt)\
348 ((int) (odr_constructed_begin((o), (p), (cl), (tg)) ? \
349 t ((o), (p), (opt)) &&\
350 odr_constructed_end(o) : opt))
352 #define ODR_MASK_ZERO(mask)\
353 ((void) (memset((mask)->bits, 0, ODR_BITMASK_SIZE),\
356 #define ODR_MASK_SET(mask, num)\
357 (((mask)->bits[(num) >> 3] |= 0X80 >> ((num) & 0X07)),\
358 (mask)->top < (num) >> 3 ? ((mask)->top = (num) >> 3) : 0)
360 #define ODR_MASK_CLEAR(mask, num)\
361 ((mask)->bits[(num) >> 3] &= ~(0X80 >> ((num) & 0X07)))
363 #define ODR_MASK_GET(mask, num) ( ((num) >> 3 <= (mask)->top) ? \
364 ((mask)->bits[(num) >> 3] & (0X80 >> ((num) & 0X07)) ? 1 : 0) : 0)
367 * write a single character at the current position - grow buffer if
369 * (no, we're not usually this anal about our macros, but this baby is
370 * next to unreadable without some indentation :)
372 #define odr_putc(o, c) \
375 (o)->ecb.pos < (o)->ecb.size ? \
377 (o)->ecb.buf[(o)->ecb.pos++] = (c), \
381 odr_grow_block(&(o)->ecb, 1) == 0 ? \
383 (o)->ecb.buf[(o)->ecb.pos++] = (c), \
387 (o)->error = OSPACE, \
393 (o)->ecb.pos > (o)->ecb.top ? \
395 (o)->ecb.top = (o)->ecb.pos, \
403 #define odr_tell(o) ((o)->ecb.pos)
404 #define odr_offset(o) ((o)->bp - (o)->buf)
405 #define odr_ok(o) (!(o)->error)
406 #define odr_getmem(o) ((o)->mem)
407 #define odr_setmem(o, v) ((o)->mem = (v))
409 #define ODR_MAXNAME 256