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
27 * Revision 1.27 1999-01-08 11:23:17 adam
28 * Added const modifier to some of the BER/ODR encoding routines.
30 * Revision 1.26 1998/03/20 17:29:20 adam
31 * Include of odr_use.h in odr.h. Added prototype for odr_enum.
33 * Revision 1.25 1998/02/11 11:53:33 adam
34 * Changed code so that it compiles as C++.
36 * Revision 1.24 1997/11/24 11:33:56 adam
37 * Using function odr_nullval() instead of global ODR_NULLVAL when
40 * Revision 1.23 1997/09/01 08:49:49 adam
41 * New windows NT/95 port using MSV5.0. To export DLL functions the
42 * YAZ_EXPORT modifier was added. Defined in yconfig.h.
44 * Revision 1.22 1997/07/21 12:44:30 adam
45 * Moved definitions of nmem_block and nmem_control.
47 * Revision 1.21 1997/05/14 06:53:41 adam
50 * Revision 1.20 1997/04/30 08:52:08 quinn
53 * Revision 1.19 1996/10/08 12:58:08 adam
54 * New ODR function, odr_choice_enable_bias, to control behaviour of
57 * Revision 1.18 1996/07/26 13:38:14 quinn
58 * Various smaller things. Gathered header-files.
60 * Revision 1.17 1995/11/08 17:41:27 quinn
63 * Revision 1.16 1995/11/01 13:54:36 quinn
66 * Revision 1.15 1995/10/18 16:12:36 quinn
69 * Revision 1.14 1995/09/29 17:12:04 quinn
72 * Revision 1.13 1995/09/29 17:01:49 quinn
75 * Revision 1.12 1995/09/27 15:02:48 quinn
76 * Modified function heads & prototypes.
78 * Revision 1.11 1995/08/15 12:00:09 quinn
81 * Revision 1.10 1995/08/10 08:54:33 quinn
84 * Revision 1.9 1995/06/19 12:38:26 quinn
85 * Reorganized include-files. Added small features.
87 * Revision 1.8 1995/06/16 13:16:04 quinn
88 * Fixed Defaultdiagformat.
90 * Revision 1.7 1995/05/29 08:11:32 quinn
91 * Moved oid from odr/asn to util.
93 * Revision 1.6 1995/05/22 14:47:00 quinn
94 * ODR_NULLVAL --> void
96 * Revision 1.5 1995/05/22 11:31:24 quinn
99 * Revision 1.4 1995/05/16 08:50:33 quinn
100 * License, documentation, and memory fixes
102 * Revision 1.3 1995/05/15 11:55:54 quinn
103 * Work on asynchronous activity.
105 * Revision 1.2 1995/04/18 08:14:37 quinn
106 * Added dynamic memory allocation on encoding
108 * Revision 1.1 1995/03/30 09:39:41 quinn
109 * Moved .h files to include directory
111 * Revision 1.15 1995/03/29 15:39:57 quinn
112 * Fixed bugs in the bitmask operations
114 * Revision 1.14 1995/03/27 08:33:15 quinn
115 * Added more OID utilities.
117 * Revision 1.13 1995/03/17 10:17:44 quinn
118 * Added memory management.
120 * Revision 1.12 1995/03/14 10:27:38 quinn
121 * Modified makefile to use common lib
122 * Beginning to add memory management to odr
124 * Revision 1.11 1995/03/10 11:44:41 quinn
125 * Fixed serious stack-bug in odr_cons_begin
127 * Revision 1.10 1995/03/08 12:12:16 quinn
128 * Added better error checking.
130 * Revision 1.9 1995/03/07 10:10:00 quinn
131 * Added some headers for Adam.
133 * Revision 1.8 1995/03/07 09:23:16 quinn
134 * Installing top-level API and documentation.
136 * Revision 1.7 1995/02/10 15:55:29 quinn
139 * Revision 1.6 1995/02/09 15:51:47 quinn
142 * Revision 1.5 1995/02/07 17:52:59 quinn
143 * A damn mess, but now things work, I think.
145 * Revision 1.4 1995/02/06 16:45:03 quinn
148 * Revision 1.3 1995/02/03 17:04:36 quinn
149 * *** empty log message ***
151 * Revision 1.2 1995/02/02 20:38:50 quinn
154 * Revision 1.1 1995/02/02 16:21:53 quinn
180 #define ODR_IMPLICIT 0
181 #define ODR_EXPLICIT 1
186 #define ODR_UNIVERSAL 0
187 #define ODR_APPLICATION 1
188 #define ODR_CONTEXT 2
189 #define ODR_PRIVATE 3
194 #define ODR_BOOLEAN 1
195 #define ODR_INTEGER 2
196 #define ODR_BITSTRING 3
197 #define ODR_OCTETSTRING 4
201 #define ODR_EXTERNAL 8
204 #define ODR_SEQUENCE 16
206 #define ODR_NUMERICSTRING 18
207 #define ODR_PRINTABLESTRING 19
208 #define ODR_GENERALIZEDTIME 24
209 #define ODR_GRAPHICSTRING 25
210 #define ODR_VISIBLESTRING 26
211 #define ODR_GENERALSTRING 27
214 * odr stream directions
220 typedef struct odr_oct
227 typedef void Odr_null;
228 extern Odr_null *ODR_NULLVAL;
230 typedef Odr_oct Odr_any;
232 typedef struct odr_bitmask
234 #define ODR_BITMASK_SIZE 256
235 unsigned char bits[ODR_BITMASK_SIZE];
239 typedef int Odr_oid; /* terminate by -1 */
241 typedef struct odr_constack
243 const unsigned char *base; /* starting point of data */
245 int len; /* length of data, if known, else -1
247 const unsigned char *lenb; /* where to encode length */
249 int lenlen; /* length of length-field */
256 typedef struct odr_ecblock
258 int can_grow; /* are we allowed to reallocate */
259 unsigned char *buf; /* memory handle */
260 int pos; /* current position */
261 int top; /* top of buffer */
262 int size; /* current buffer size */
265 typedef struct { /* used to be statics in ber_tag... */
274 int direction; /* the direction of this stream */
276 int error; /* current error state (0==OK) */
277 const unsigned char *buf; /* for encoding or decoding */
278 int buflen; /* size of buffer for encoding, len for decoding */
279 const unsigned char *bp; /* position in buffer */
280 int left; /* bytes remaining in buffer */
282 odr_ecblock ecb; /* memory control block */
284 int t_class; /* implicit tagging (-1==default tag) */
287 int enable_bias; /* force choice enable flag */
288 int choice_bias; /* force choice */
289 int lenlen; /* force length-of-lenght (odr_setlen()) */
291 FILE *print; /* output file for direction print */
292 int indent; /* current indent level for printing */
294 NMEM mem; /* memory handle for decoding (primarily) */
296 /* stack for constructed types */
297 #define ODR_MAX_STACK 50
298 int stackp; /* top of stack (-1 == initial state) */
299 odr_constack stack[ODR_MAX_STACK];
301 Odr_ber_tag odr_ber_tag;
304 typedef int (*Odr_fun)(ODR, char **, int);
306 typedef struct odr_arm
323 #define OUNEXPECTED 5
331 extern char *odr_errlist[];
333 YAZ_EXPORT int odr_geterror(ODR o);
334 YAZ_EXPORT void odr_perror(ODR o, char *message);
335 YAZ_EXPORT void odr_setprint(ODR o, FILE *file);
336 YAZ_EXPORT ODR odr_createmem(int direction);
337 YAZ_EXPORT void odr_reset(ODR o);
338 YAZ_EXPORT void odr_destroy(ODR o);
339 YAZ_EXPORT void odr_setbuf(ODR o, char *buf, int len, int can_grow);
340 YAZ_EXPORT char *odr_getbuf(ODR o, int *len, int *size);
341 YAZ_EXPORT void *odr_malloc(ODR o, int size);
342 YAZ_EXPORT NMEM odr_extract_mem(ODR o);
343 YAZ_EXPORT Odr_null *odr_nullval(void);
344 #define odr_release_mem(m) nmem_destroy(m)
347 #define odr_implicit(o, t, p, cl, tg, opt)\
348 (odr_implicit_settag((o), cl, tg), t ((o), (p), opt) )
350 #define odr_explicit(o, t, p, cl, tg, opt)\
351 ((int) (odr_constructed_begin((o), (p), (cl), (tg)) ? \
352 t ((o), (p), (opt)) &&\
353 odr_constructed_end(o) : opt))
355 #define ODR_MASK_ZERO(mask)\
356 ((void) (memset((mask)->bits, 0, ODR_BITMASK_SIZE),\
359 #define ODR_MASK_SET(mask, num)\
360 (((mask)->bits[(num) >> 3] |= 0X80 >> ((num) & 0X07)),\
361 (mask)->top < (num) >> 3 ? ((mask)->top = (num) >> 3) : 0)
363 #define ODR_MASK_CLEAR(mask, num)\
364 ((mask)->bits[(num) >> 3] &= ~(0X80 >> ((num) & 0X07)))
366 #define ODR_MASK_GET(mask, num) ( ((num) >> 3 <= (mask)->top) ? \
367 ((mask)->bits[(num) >> 3] & (0X80 >> ((num) & 0X07)) ? 1 : 0) : 0)
370 * write a single character at the current position - grow buffer if
372 * (no, we're not usually this anal about our macros, but this baby is
373 * next to unreadable without some indentation :)
375 #define odr_putc(o, c) \
378 (o)->ecb.pos < (o)->ecb.size ? \
380 (o)->ecb.buf[(o)->ecb.pos++] = (c), \
384 odr_grow_block(&(o)->ecb, 1) == 0 ? \
386 (o)->ecb.buf[(o)->ecb.pos++] = (c), \
390 (o)->error = OSPACE, \
396 (o)->ecb.pos > (o)->ecb.top ? \
398 (o)->ecb.top = (o)->ecb.pos, \
406 #define odr_tell(o) ((o)->ecb.pos)
407 #define odr_offset(o) ((o)->bp - (o)->buf)
408 #define odr_ok(o) (!(o)->error)
409 #define odr_getmem(o) ((o)->mem)
410 #define odr_setmem(o, v) ((o)->mem = (v))
412 #define ODR_MAXNAME 256