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 1.24 1997-11-24 11:33:56 adam
28 * Using function odr_nullval() instead of global ODR_NULLVAL when
31 * Revision 1.23 1997/09/01 08:49:49 adam
32 * New windows NT/95 port using MSV5.0. To export DLL functions the
33 * YAZ_EXPORT modifier was added. Defined in yconfig.h.
35 * Revision 1.22 1997/07/21 12:44:30 adam
36 * Moved definitions of nmem_block and nmem_control.
38 * Revision 1.21 1997/05/14 06:53:41 adam
41 * Revision 1.20 1997/04/30 08:52:08 quinn
44 * Revision 1.19 1996/10/08 12:58:08 adam
45 * New ODR function, odr_choice_enable_bias, to control behaviour of
48 * Revision 1.18 1996/07/26 13:38:14 quinn
49 * Various smaller things. Gathered header-files.
51 * Revision 1.17 1995/11/08 17:41:27 quinn
54 * Revision 1.16 1995/11/01 13:54:36 quinn
57 * Revision 1.15 1995/10/18 16:12:36 quinn
60 * Revision 1.14 1995/09/29 17:12:04 quinn
63 * Revision 1.13 1995/09/29 17:01:49 quinn
66 * Revision 1.12 1995/09/27 15:02:48 quinn
67 * Modified function heads & prototypes.
69 * Revision 1.11 1995/08/15 12:00:09 quinn
72 * Revision 1.10 1995/08/10 08:54:33 quinn
75 * Revision 1.9 1995/06/19 12:38:26 quinn
76 * Reorganized include-files. Added small features.
78 * Revision 1.8 1995/06/16 13:16:04 quinn
79 * Fixed Defaultdiagformat.
81 * Revision 1.7 1995/05/29 08:11:32 quinn
82 * Moved oid from odr/asn to util.
84 * Revision 1.6 1995/05/22 14:47:00 quinn
85 * ODR_NULLVAL --> void
87 * Revision 1.5 1995/05/22 11:31:24 quinn
90 * Revision 1.4 1995/05/16 08:50:33 quinn
91 * License, documentation, and memory fixes
93 * Revision 1.3 1995/05/15 11:55:54 quinn
94 * Work on asynchronous activity.
96 * Revision 1.2 1995/04/18 08:14:37 quinn
97 * Added dynamic memory allocation on encoding
99 * Revision 1.1 1995/03/30 09:39:41 quinn
100 * Moved .h files to include directory
102 * Revision 1.15 1995/03/29 15:39:57 quinn
103 * Fixed bugs in the bitmask operations
105 * Revision 1.14 1995/03/27 08:33:15 quinn
106 * Added more OID utilities.
108 * Revision 1.13 1995/03/17 10:17:44 quinn
109 * Added memory management.
111 * Revision 1.12 1995/03/14 10:27:38 quinn
112 * Modified makefile to use common lib
113 * Beginning to add memory management to odr
115 * Revision 1.11 1995/03/10 11:44:41 quinn
116 * Fixed serious stack-bug in odr_cons_begin
118 * Revision 1.10 1995/03/08 12:12:16 quinn
119 * Added better error checking.
121 * Revision 1.9 1995/03/07 10:10:00 quinn
122 * Added some headers for Adam.
124 * Revision 1.8 1995/03/07 09:23:16 quinn
125 * Installing top-level API and documentation.
127 * Revision 1.7 1995/02/10 15:55:29 quinn
130 * Revision 1.6 1995/02/09 15:51:47 quinn
133 * Revision 1.5 1995/02/07 17:52:59 quinn
134 * A damn mess, but now things work, I think.
136 * Revision 1.4 1995/02/06 16:45:03 quinn
139 * Revision 1.3 1995/02/03 17:04:36 quinn
140 * *** empty log message ***
142 * Revision 1.2 1995/02/02 20:38:50 quinn
145 * Revision 1.1 1995/02/02 16:21:53 quinn
171 #define ODR_IMPLICIT 0
172 #define ODR_EXPLICIT 1
177 #define ODR_UNIVERSAL 0
178 #define ODR_APPLICATION 1
179 #define ODR_CONTEXT 2
180 #define ODR_PRIVATE 3
185 #define ODR_BOOLEAN 1
186 #define ODR_INTEGER 2
187 #define ODR_BITSTRING 3
188 #define ODR_OCTETSTRING 4
192 #define ODR_EXTERNAL 8
195 #define ODR_SEQUENCE 16
197 #define ODR_NUMERICSTRING 18
198 #define ODR_PRINTABLESTRING 19
199 #define ODR_GENERALIZEDTIME 24
200 #define ODR_GRAPHICSTRING 25
201 #define ODR_VISIBLESTRING 26
202 #define ODR_GENERALSTRING 27
205 * odr stream directions
211 typedef struct odr_oct
218 typedef void Odr_null;
219 extern Odr_null *ODR_NULLVAL;
221 typedef Odr_oct Odr_any;
223 typedef struct odr_bitmask
225 #define ODR_BITMASK_SIZE 256
226 unsigned char bits[ODR_BITMASK_SIZE];
230 typedef int Odr_oid; /* terminate by -1 */
232 typedef struct odr_constack
234 unsigned char *base; /* starting point of data */
236 int len; /* length of data, if known, else -1
238 unsigned char *lenb; /* where to encode length */
240 int lenlen; /* length of length-field */
247 typedef struct odr_ecblock
249 int can_grow; /* are we allowed to reallocate */
250 unsigned char *buf; /* memory handle */
251 int pos; /* current position */
252 int top; /* top of buffer */
253 int size; /* current buffer size */
256 typedef struct { /* used to be statics in ber_tag... */
265 int direction; /* the direction of this stream */
267 int error; /* current error state (0==OK) */
268 unsigned char *buf; /* for encoding or decoding */
269 int buflen; /* size of buffer for encoding, len for decoding */
270 unsigned char *bp; /* position in buffer */
271 int left; /* bytes remaining in buffer */
273 odr_ecblock ecb; /* memory control block */
275 int t_class; /* implicit tagging (-1==default tag) */
278 int enable_bias; /* force choice enable flag */
279 int choice_bias; /* force choice */
280 int lenlen; /* force length-of-lenght (odr_setlen()) */
282 FILE *print; /* output file for direction print */
283 int indent; /* current indent level for printing */
285 NMEM mem; /* memory handle for decoding (primarily) */
287 /* stack for constructed types */
288 #define ODR_MAX_STACK 50
289 int stackp; /* top of stack (-1 == initial state) */
290 odr_constack stack[ODR_MAX_STACK];
292 Odr_ber_tag odr_ber_tag;
295 typedef int (*Odr_fun)();
297 typedef struct odr_arm
314 #define OUNEXPECTED 5
322 extern char *odr_errlist[];
324 YAZ_EXPORT int odr_geterror(ODR o);
325 YAZ_EXPORT void odr_perror(ODR o, char *message);
326 YAZ_EXPORT void odr_setprint(ODR o, FILE *file);
327 YAZ_EXPORT ODR odr_createmem(int direction);
328 YAZ_EXPORT void odr_reset(ODR o);
329 YAZ_EXPORT void odr_destroy(ODR o);
330 YAZ_EXPORT void odr_setbuf(ODR o, char *buf, int len, int can_grow);
331 YAZ_EXPORT char *odr_getbuf(ODR o, int *len, int *size);
332 YAZ_EXPORT void *odr_malloc(ODR o, int size);
333 YAZ_EXPORT NMEM odr_extract_mem(ODR o);
334 YAZ_EXPORT Odr_null *odr_nullval(void);
335 #define odr_release_mem(m) nmem_destroy(m)
338 #define odr_implicit(o, t, p, cl, tg, opt)\
339 (odr_implicit_settag((o), cl, tg), t ((o), (p), opt) )
341 #define odr_explicit(o, t, p, cl, tg, opt)\
342 ((int) (odr_constructed_begin((o), (p), (cl), (tg)) ? \
343 t ((o), (p), (opt)) &&\
344 odr_constructed_end(o) : opt))
346 #define ODR_MASK_ZERO(mask)\
347 ((void) (memset((mask)->bits, 0, ODR_BITMASK_SIZE),\
350 #define ODR_MASK_SET(mask, num)\
351 (((mask)->bits[(num) >> 3] |= 0X80 >> ((num) & 0X07)),\
352 (mask)->top < (num) >> 3 ? ((mask)->top = (num) >> 3) : 0)
354 #define ODR_MASK_CLEAR(mask, num)\
355 ((mask)->bits[(num) >> 3] &= ~(0X80 >> ((num) & 0X07)))
357 #define ODR_MASK_GET(mask, num) ( ((num) >> 3 <= (mask)->top) ? \
358 ((mask)->bits[(num) >> 3] & (0X80 >> ((num) & 0X07)) ? 1 : 0) : 0)
361 * write a single character at the current position - grow buffer if
363 * (no, we're not usually this anal about our macros, but this baby is
364 * next to unreadable without some indentation :)
366 #define odr_putc(o, c) \
369 (o)->ecb.pos < (o)->ecb.size ? \
371 (o)->ecb.buf[(o)->ecb.pos++] = (c), \
375 odr_grow_block(&(o)->ecb, 1) == 0 ? \
377 (o)->ecb.buf[(o)->ecb.pos++] = (c), \
381 (o)->error = OSPACE, \
387 (o)->ecb.pos > (o)->ecb.top ? \
389 (o)->ecb.top = (o)->ecb.pos, \
397 #define odr_tell(o) ((o)->ecb.pos)
398 #define odr_offset(o) ((o)->bp - (o)->buf)
399 #define odr_ok(o) (!(o)->error)
400 #define odr_getmem(o) ((o)->mem)
401 #define odr_setmem(o, v) ((o)->mem = (v))
403 #define ODR_MAXNAME 256