Training courses

Kernel and Embedded Linux

Bootlin training courses

Embedded Linux, kernel,
Yocto Project, Buildroot, real-time,
graphics, boot time, debugging...

Bootlin logo

Elixir Cross Referencer

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
/*	$NetBSD: t61.c,v 1.3 2021/08/14 16:14:56 christos Exp $	*/

/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
 *
 * Copyright 2002-2021 The OpenLDAP Foundation.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted only as authorized by the OpenLDAP
 * Public License.
 *
 * A copy of this license is available in the file LICENSE in the
 * top-level directory of the distribution or, alternatively, at
 * <http://www.OpenLDAP.org/license.html>.
 */
/* ACKNOWLEDGEMENTS:
 * This work was initially developed by Howard Chu for inclusion in
 * OpenLDAP Software.
 */

/*
 * Basic T.61 <-> UTF-8 conversion
 *
 * These routines will perform a lossless translation from T.61 to UTF-8
 * and a lossy translation from UTF-8 to T.61.
 */

#include <sys/cdefs.h>
__RCSID("$NetBSD: t61.c,v 1.3 2021/08/14 16:14:56 christos Exp $");

#include "portable.h"

#include <stdio.h>

#include <ac/stdlib.h>

#include <ac/socket.h>
#include <ac/string.h>
#include <ac/time.h>

#include "ldap-int.h"
#include "ldap_utf8.h"

#include "ldap_defaults.h"

/*
 * T.61 is somewhat braindead; even in the 7-bit space it is not
 * completely equivalent to 7-bit US-ASCII. Our definition of the
 * character set comes from RFC 1345 with a slightly more readable
 * rendition at http://std.dkuug.dk/i18n/charmaps/T.61-8BIT.
 *
 * Even though '#' and '$' are present in the 7-bit US-ASCII space,
 * (x23 and x24, resp.) in T.61 they are mapped to 8-bit characters
 * xA6 and xA4. 
 *
 * Also T.61 lacks
 *	backslash 	\	(x5C)
 *	caret		^	(x5E)
 *	backquote	`	(x60)
 *	left brace	{	(x7B)
 *	right brace	}	(x7D)
 *	tilde		~	(x7E)
 *
 * In T.61, the codes xC1 to xCF (excluding xC9, unused) are non-spacing
 * accents of some form or another. There are predefined combinations
 * for certain characters, but they can also be used arbitrarily. The
 * table at dkuug.dk maps these accents to the E000 "private use" range
 * of the Unicode space, but I believe they more properly belong in the
 * 0300 range (non-spacing accents). The transformation is complicated
 * slightly because Unicode wants the non-spacing character to follow
 * the base character, while T.61 has the non-spacing character leading.
 * Also, T.61 specifically recognizes certain combined pairs as "characters"
 * but doesn't specify how to treat unrecognized pairs. This code will
 * always attempt to combine pairs when a known Unicode composite exists.
 */

static const wchar_t t61_tab[] = {
	0x000, 0x001, 0x002, 0x003, 0x004, 0x005, 0x006, 0x007,
	0x008, 0x009, 0x00a, 0x00b, 0x00c, 0x00d, 0x00e, 0x00f,
	0x010, 0x011, 0x012, 0x013, 0x014, 0x015, 0x016, 0x017,
	0x018, 0x019, 0x01a, 0x01b, 0x01c, 0x01d, 0x01e, 0x01f,
	0x020, 0x021, 0x022, 0x000, 0x000, 0x025, 0x026, 0x027,
	0x028, 0x029, 0x02a, 0x02b, 0x02c, 0x02d, 0x02e, 0x02f,
	0x030, 0x031, 0x032, 0x033, 0x034, 0x035, 0x036, 0x037,
	0x038, 0x039, 0x03a, 0x03b, 0x03c, 0x03d, 0x03e, 0x03f,
	0x040, 0x041, 0x042, 0x043, 0x044, 0x045, 0x046, 0x047,
	0x048, 0x049, 0x04a, 0x04b, 0x04c, 0x04d, 0x04e, 0x04f,
	0x050, 0x051, 0x052, 0x053, 0x054, 0x055, 0x056, 0x057,
	0x058, 0x059, 0x05a, 0x05b, 0x000, 0x05d, 0x000, 0x05f,
	0x000, 0x061, 0x062, 0x063, 0x064, 0x065, 0x066, 0x067,
	0x068, 0x069, 0x06a, 0x06b, 0x06c, 0x06d, 0x06e, 0x06f,
	0x070, 0x071, 0x072, 0x073, 0x074, 0x075, 0x076, 0x077,
	0x078, 0x079, 0x07a, 0x000, 0x07c, 0x000, 0x000, 0x07f,
	0x080, 0x081, 0x082, 0x083, 0x084, 0x085, 0x086, 0x087,
	0x088, 0x089, 0x08a, 0x08b, 0x08c, 0x08d, 0x08e, 0x08f,
	0x090, 0x091, 0x092, 0x093, 0x094, 0x095, 0x096, 0x097,
	0x098, 0x099, 0x09a, 0x09b, 0x09c, 0x09d, 0x09e, 0x09f,
	0x0a0, 0x0a1, 0x0a2, 0x0a3, 0x024, 0x0a5, 0x023, 0x0a7,
	0x0a4, 0x000, 0x000, 0x0ab, 0x000, 0x000, 0x000, 0x000,
	0x0b0, 0x0b1, 0x0b2, 0x0b3, 0x0d7, 0x0b5, 0x0b6, 0x0b7,
	0x0f7, 0x000, 0x000, 0x0bb, 0x0bc, 0x0bd, 0x0be, 0x0bf,
	0x000, 0x300, 0x301, 0x302, 0x303, 0x304, 0x306, 0x307,
	0x308, 0x000, 0x30a, 0x327, 0x332, 0x30b, 0x328, 0x30c,
	0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
	0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
	0x2126, 0xc6, 0x0d0, 0x0aa, 0x126, 0x000, 0x132, 0x13f,
	0x141, 0x0d8, 0x152, 0x0ba, 0x0de, 0x166, 0x14a, 0x149,
	0x138, 0x0e6, 0x111, 0x0f0, 0x127, 0x131, 0x133, 0x140,
	0x142, 0x0f8, 0x153, 0x0df, 0x0fe, 0x167, 0x14b, 0x000
};

typedef wchar_t wvec16[16];
typedef wchar_t wvec32[32];
typedef wchar_t wvec64[64];

/* Substitutions when 0xc1-0xcf appears by itself or with space 0x20 */
static const wvec16 accents = {
	0x000, 0x060, 0x0b4, 0x05e, 0x07e, 0x0af, 0x2d8, 0x2d9,
	0x0a8, 0x000, 0x2da, 0x0b8, 0x000, 0x2dd, 0x2db, 0x2c7};

/* In the following tables, base characters commented in (parentheses)
 * are not defined by T.61 but are mapped anyway since their Unicode
 * composite exists.
 */

/* Grave accented chars AEIOU (NWY) */
static const wvec32 c1_vec1 = {
	/* Upper case */
	0, 0xc0, 0, 0, 0, 0xc8, 0, 0, 0, 0xcc, 0, 0, 0, 0, 0x1f8, 0xd2,
	0, 0, 0, 0, 0, 0xd9, 0, 0x1e80, 0, 0x1ef2, 0, 0, 0, 0, 0, 0};
static const wvec32 c1_vec2 = {
	/* Lower case */
	0, 0xe0, 0, 0, 0, 0xe8, 0, 0, 0, 0xec, 0, 0, 0, 0, 0x1f9, 0xf2,
	0, 0, 0, 0, 0, 0xf9, 0, 0x1e81, 0, 0x1ef3, 0, 0, 0, 0, 0, 0};
	
static const wvec32 *c1_grave[] = {
	NULL, NULL, &c1_vec1, &c1_vec2, NULL, NULL, NULL, NULL
};

/* Acute accented chars AEIOUYCLNRSZ (GKMPW) */
static const wvec32 c2_vec1 = {
	/* Upper case */
	0, 0xc1, 0, 0x106, 0, 0xc9, 0, 0x1f4,
	0, 0xcd, 0, 0x1e30, 0x139, 0x1e3e, 0x143, 0xd3,
	0x1e54, 0, 0x154, 0x15a, 0, 0xda, 0, 0x1e82,
	0, 0xdd, 0x179, 0, 0, 0, 0, 0};
static const wvec32 c2_vec2 = {
	/* Lower case */
	0, 0xe1, 0, 0x107, 0, 0xe9, 0, 0x1f5,
	0, 0xed, 0, 0x1e31, 0x13a, 0x1e3f, 0x144, 0xf3,
	0x1e55, 0, 0x155, 0x15b, 0, 0xfa, 0, 0x1e83,
	0, 0xfd, 0x17a, 0, 0, 0, 0, 0};
static const wvec32 c2_vec3 = {
	/* (AE and ae) */
	0, 0x1fc, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0x1fd, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};

static const wvec32 *c2_acute[] = {
	NULL, NULL, &c2_vec1, &c2_vec2, NULL, NULL, NULL, &c2_vec3
};

/* Circumflex AEIOUYCGHJSW (Z) */
static const wvec32 c3_vec1 = {
	/* Upper case */
	0, 0xc2, 0, 0x108, 0, 0xca, 0, 0x11c,
	0x124, 0xce, 0x134, 0, 0, 0, 0, 0xd4,
	0, 0, 0, 0x15c, 0, 0xdb, 0, 0x174,
	0, 0x176, 0x1e90, 0, 0, 0, 0, 0};
static const wvec32 c3_vec2 = {
	/* Lower case */
	0, 0xe2, 0, 0x109, 0, 0xea, 0, 0x11d,
	0x125, 0xee, 0x135, 0, 0, 0, 0, 0xf4,
	0, 0, 0, 0x15d, 0, 0xfb, 0, 0x175,
	0, 0x177, 0x1e91, 0, 0, 0, 0, 0};
static const wvec32 *c3_circumflex[] = {
	NULL, NULL, &c3_vec1, &c3_vec2, NULL, NULL, NULL, NULL
};

/* Tilde AIOUN (EVY) */
static const wvec32 c4_vec1 = {
	/* Upper case */
	0, 0xc3, 0, 0, 0, 0x1ebc, 0, 0, 0, 0x128, 0, 0, 0, 0, 0xd1, 0xd5,
	0, 0, 0, 0, 0, 0x168, 0x1e7c, 0, 0, 0x1ef8, 0, 0, 0, 0, 0, 0};
static const wvec32 c4_vec2 = {
	/* Lower case */
	0, 0xe3, 0, 0, 0, 0x1ebd, 0, 0, 0, 0x129, 0, 0, 0, 0, 0xf1, 0xf5,
	0, 0, 0, 0, 0, 0x169, 0x1e7d, 0, 0, 0x1ef9, 0, 0, 0, 0, 0, 0};
static const wvec32 *c4_tilde[] = {
	NULL, NULL, &c4_vec1, &c4_vec2, NULL, NULL, NULL, NULL
};

/* Macron AEIOU (YG) */
static const wvec32 c5_vec1 = {
	/* Upper case */
	0, 0x100, 0, 0, 0, 0x112, 0, 0x1e20, 0, 0x12a, 0, 0, 0, 0, 0, 0x14c,
	0, 0, 0, 0, 0, 0x16a, 0, 0, 0, 0x232, 0, 0, 0, 0, 0, 0};
static const wvec32 c5_vec2 = {
	/* Lower case */
	0, 0x101, 0, 0, 0, 0x113, 0, 0x1e21, 0, 0x12b, 0, 0, 0, 0, 0, 0x14d,
	0, 0, 0, 0, 0, 0x16b, 0, 0, 0, 0x233, 0, 0, 0, 0, 0, 0};
static const wvec32 c5_vec3 = {
	/* (AE and ae) */
	0, 0x1e2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0x1e3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
static const wvec32 *c5_macron[] = {
	NULL, NULL, &c5_vec1, &c5_vec2, NULL, NULL, NULL, &c5_vec3
};

/* Breve AUG (EIO) */
static const wvec32 c6_vec1 = {
	/* Upper case */
	0, 0x102, 0, 0, 0, 0x114, 0, 0x11e, 0, 0x12c, 0, 0, 0, 0, 0, 0x14e,
	0, 0, 0, 0, 0, 0x16c, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
static const wvec32 c6_vec2 = {
	/* Lower case */
	0, 0x103, 0, 0, 0, 0x115, 0, 0x11f, 0, 0x12d, 0, 0, 0, 0, 0, 0x14f,
	0, 0, 0, 0, 0, 0x16d, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
static const wvec32 *c6_breve[] = {
	NULL, NULL, &c6_vec1, &c6_vec2, NULL, NULL, NULL, NULL
};

/* Dot Above CEGIZ (AOBDFHMNPRSTWXY) */
static const wvec32 c7_vec1 = {
	/* Upper case */
	0, 0x226, 0x1e02, 0x10a, 0x1e0a, 0x116, 0x1e1e, 0x120,
	0x1e22, 0x130, 0, 0, 0, 0x1e40, 0x1e44, 0x22e,
	0x1e56, 0, 0x1e58, 0x1e60, 0x1e6a, 0, 0, 0x1e86,
	0x1e8a, 0x1e8e, 0x17b, 0, 0, 0, 0, 0};
static const wvec32 c7_vec2 = {
	/* Lower case */
	0, 0x227, 0x1e03, 0x10b, 0x1e0b, 0x117, 0x1e1f, 0x121,
	0x1e23, 0, 0, 0, 0, 0x1e41, 0x1e45, 0x22f,
	0x1e57, 0, 0x1e59, 0x1e61, 0x1e6b, 0, 0, 0x1e87,
	0x1e8b, 0x1e8f, 0x17c, 0, 0, 0, 0, 0};
static const wvec32 *c7_dotabove[] = {
	NULL, NULL, &c7_vec1, &c7_vec2, NULL, NULL, NULL, NULL
};

/* Diaeresis AEIOUY (HWXt) */
static const wvec32 c8_vec1 = {
	/* Upper case */
	0, 0xc4, 0, 0, 0, 0xcb, 0, 0, 0x1e26, 0xcf, 0, 0, 0, 0, 0, 0xd6,
	0, 0, 0, 0, 0, 0xdc, 0, 0x1e84, 0x1e8c, 0x178, 0, 0, 0, 0, 0, 0};
static const wvec32 c8_vec2 = {
	/* Lower case */
	0, 0xe4, 0, 0, 0, 0xeb, 0, 0, 0x1e27, 0xef, 0, 0, 0, 0, 0, 0xf6,
	0, 0, 0, 0, 0x1e97, 0xfc, 0, 0x1e85, 0x1e8d, 0xff, 0, 0, 0, 0, 0, 0};
static const wvec32 *c8_diaeresis[] = {
	NULL, NULL, &c8_vec1, &c8_vec2, NULL, NULL, NULL, NULL
};

/* Ring Above AU (wy) */
static const wvec32 ca_vec1 = {
	/* Upper case */
	0, 0xc5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0x16e, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
static const wvec32 ca_vec2 = {
	/* Lower case */
	0, 0xe5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0x16f, 0, 0x1e98, 0, 0x1e99, 0, 0, 0, 0, 0, 0};
static const wvec32 *ca_ringabove[] = {
	NULL, NULL, &ca_vec1, &ca_vec2, NULL, NULL, NULL, NULL
};

/* Cedilla CGKLNRST (EDH) */
static const wvec32 cb_vec1 = {
	/* Upper case */
	0, 0, 0, 0xc7, 0x1e10, 0x228, 0, 0x122,
	0x1e28, 0, 0, 0x136, 0x13b, 0, 0x145, 0,
	0, 0, 0x156, 0x15e, 0x162, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
static const wvec32 cb_vec2 = {
	/* Lower case */
	0, 0, 0, 0xe7, 0x1e11, 0x229, 0, 0x123,
	0x1e29, 0, 0, 0x137, 0x13c, 0, 0x146, 0,
	0, 0, 0x157, 0x15f, 0x163, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
static const wvec32 *cb_cedilla[] = {
	NULL, NULL, &cb_vec1, &cb_vec2, NULL, NULL, NULL, NULL
};

/* Double Acute Accent OU */
static const wvec32 cd_vec1 = {
	/* Upper case */
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x150,
	0, 0, 0, 0, 0, 0x170, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
static const wvec32 cd_vec2 = {
	/* Lower case */
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x151,
	0, 0, 0, 0, 0, 0x171, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
static const wvec32 *cd_doubleacute[] = {
	NULL, NULL, &cd_vec1, &cd_vec2, NULL, NULL, NULL, NULL
};

/* Ogonek AEIU (O) */
static const wvec32 ce_vec1 = {
	/* Upper case */
	0, 0x104, 0, 0, 0, 0x118, 0, 0, 0, 0x12e, 0, 0, 0, 0, 0, 0x1ea,
	0, 0, 0, 0, 0, 0x172, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
static const wvec32 ce_vec2 = {
	/* Lower case */
	0, 0x105, 0, 0, 0, 0x119, 0, 0, 0, 0x12f, 0, 0, 0, 0, 0, 0x1eb,
	0, 0, 0, 0, 0, 0x173, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
static const wvec32 *ce_ogonek[] = {
	NULL, NULL, &ce_vec1, &ce_vec2, NULL, NULL, NULL, NULL
};

/* Caron CDELNRSTZ (AIOUGKjH) */
static const wvec32 cf_vec1 = {
	/* Upper case */
	0, 0x1cd, 0, 0x10c, 0x10e, 0x11a, 0, 0x1e6,
	0x21e, 0x1cf, 0, 0x1e8, 0x13d, 0, 0x147, 0x1d1,
	0, 0, 0x158, 0x160, 0x164, 0x1d3, 0, 0,
	0, 0, 0x17d, 0, 0, 0, 0, 0};
static const wvec32 cf_vec2 = {
	/* Lower case */
	0, 0x1ce, 0, 0x10d, 0x10f, 0x11b, 0, 0x1e7,
	0x21f, 0x1d0, 0x1f0, 0x1e9, 0x13e, 0, 0x148, 0x1d2,
	0, 0, 0x159, 0x161, 0x165, 0x1d4, 0, 0,
	0, 0, 0x17e, 0, 0, 0, 0, 0};
static const wvec32 *cf_caron[] = {
	NULL, NULL, &cf_vec1, &cf_vec2, NULL, NULL, NULL, NULL
};

static const wvec32 **cx_tab[] = {
	NULL, c1_grave, c2_acute, c3_circumflex, c4_tilde, c5_macron,
	c6_breve, c7_dotabove, c8_diaeresis, NULL, ca_ringabove,
	cb_cedilla, NULL, cd_doubleacute, ce_ogonek, cf_caron };

int ldap_t61s_valid( struct berval *str )
{
	unsigned char *c = (unsigned char *)str->bv_val;
	int i;

	for (i=0; i < str->bv_len; c++,i++)
		if (!t61_tab[*c])
			return 0;
	return 1;
}

/* Transform a T.61 string to UTF-8.
 */
int ldap_t61s_to_utf8s( struct berval *src, struct berval *dst )
{
	unsigned char *c;
	char *d;
	int i, wlen = 0;

	/* Just count the length of the UTF-8 result first */
	for (i=0,c=(unsigned char *)src->bv_val; i < src->bv_len; c++,i++) {
		/* Invalid T.61 characters? */
		if (!t61_tab[*c]) 
			return LDAP_INVALID_SYNTAX;
		if ((*c & 0xf0) == 0xc0) {
			int j = *c & 0x0f;
			/* If this is the end of the string, or if the base
			 * character is just a space, treat this as a regular
			 * spacing character.
			 */
			if ((!c[1] || c[1] == 0x20) && accents[j]) {
				wlen += ldap_x_wc_to_utf8(NULL, accents[j], 0);
			} else if (cx_tab[j] && cx_tab[j][c[1]>>5] &&
			/* We have a composite mapping for this pair */
				(*cx_tab[j][c[1]>>5])[c[1]&0x1f]) {
				wlen += ldap_x_wc_to_utf8( NULL,
					(*cx_tab[j][c[1]>>5])[c[1]&0x1f], 0);
			} else {
			/* No mapping, just swap it around so the base
			 * character comes first.
			 */
			 	wlen += ldap_x_wc_to_utf8(NULL, c[1], 0);
				wlen += ldap_x_wc_to_utf8(NULL,
					t61_tab[*c], 0);
			}
			c++; i++;
			continue;
		} else {
			wlen += ldap_x_wc_to_utf8(NULL, t61_tab[*c], 0);
		}
	}

	/* Now transform the string */
	dst->bv_len = wlen;
	dst->bv_val = LDAP_MALLOC( wlen+1 );
	d = dst->bv_val;
	if (!d)
		return LDAP_NO_MEMORY;

	for (i=0,c=(unsigned char *)src->bv_val; i < src->bv_len; c++,i++) {
		if ((*c & 0xf0) == 0xc0) {
			int j = *c & 0x0f;
			/* If this is the end of the string, or if the base
			 * character is just a space, treat this as a regular
			 * spacing character.
			 */
			if ((!c[1] || c[1] == 0x20) && accents[j]) {
				d += ldap_x_wc_to_utf8(d, accents[j], 6);
			} else if (cx_tab[j] && cx_tab[j][c[1]>>5] &&
			/* We have a composite mapping for this pair */
				(*cx_tab[j][c[1]>>5])[c[1]&0x1f]) {
				d += ldap_x_wc_to_utf8(d, 
				(*cx_tab[j][c[1]>>5])[c[1]&0x1f], 6);
			} else {
			/* No mapping, just swap it around so the base
			 * character comes first.
			 */
				d += ldap_x_wc_to_utf8(d, c[1], 6);
				d += ldap_x_wc_to_utf8(d, t61_tab[*c], 6);
			}
			c++; i++;
			continue;
		} else {
			d += ldap_x_wc_to_utf8(d, t61_tab[*c], 6);
		}
	}
	*d = '\0';
	return LDAP_SUCCESS;
}

/* For the reverse mapping, we just pay attention to the Latin-oriented
 * code blocks. These are
 *	0000 - 007f Basic Latin
 *	0080 - 00ff Latin-1 Supplement
 *	0100 - 017f Latin Extended-A
 *	0180 - 024f Latin Extended-B
 *	1e00 - 1eff Latin Extended Additional
 *
 * We have a special case to map Ohm U2126 back to T.61 0xe0. All other
 * unrecognized characters are replaced with '?' 0x3f.
 */

static const wvec64 u000 = {
	0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007,
	0x0008, 0x0009, 0x000a, 0x000b, 0x000c, 0x000d, 0x000e, 0x000f,
	0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017,
	0x0018, 0x0019, 0x001a, 0x001b, 0x001c, 0x001d, 0x001e, 0x001f,
	0x0020, 0x0021, 0x0022, 0x00a6, 0x00a4, 0x0025, 0x0026, 0x0027,
	0x0028, 0x0029, 0x002a, 0x002b, 0x002c, 0x002d, 0x002e, 0x002f,
	0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037,
	0x0038, 0x0039, 0x003a, 0x003b, 0x003c, 0x003d, 0x003e, 0x003f};

/* In this range, we've mapped caret to xc3/x20, backquote to xc1/x20,
 * and tilde to xc4/x20. T.61 (stupidly!) doesn't define these characters
 * on their own, even though it provides them as combiners for other
 * letters. T.61 doesn't define these pairings either, so this may just
 * have to be replaced with '?' 0x3f if other software can't cope with it.
 */
static const wvec64 u001 = {
	0x0040, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047,
	0x0048, 0x0049, 0x004a, 0x004b, 0x004c, 0x004d, 0x004e, 0x004f,
	0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057,
	0x0058, 0x0059, 0x005a, 0x005b, 0x003f, 0x005d, 0xc320, 0x005f,
	0xc120, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067,
	0x0068, 0x0069, 0x006a, 0x006b, 0x006c, 0x006d, 0x006e, 0x006f,
	0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077,
	0x0078, 0x0079, 0x007a, 0x003f, 0x007c, 0x003f, 0xc420, 0x007f};

static const wvec64 u002 = {
	0x0080, 0x0081, 0x0082, 0x0083, 0x0084, 0x0085, 0x0086, 0x0087,
	0x0088, 0x0089, 0x008a, 0x008b, 0x008c, 0x008d, 0x008e, 0x008f,
	0x0090, 0x0091, 0x0092, 0x0093, 0x0094, 0x0095, 0x0096, 0x0097,
	0x0098, 0x0099, 0x009a, 0x009b, 0x009c, 0x009d, 0x009e, 0x009f,
	0x00a0, 0x00a1, 0x00a2, 0x00a3, 0x00a8, 0x00a5, 0x003f, 0x00a7,
	0xc820, 0x003f, 0x00e3, 0x00ab, 0x003f, 0x003f, 0x003f, 0xc520,
	0x00b0, 0x00b1, 0x00b2, 0x00b3, 0xc220, 0x00b5, 0x00b6, 0x00b7,
	0xcb20, 0x003f, 0x00eb, 0x00bb, 0x00bc, 0x00bd, 0x00be, 0x00bf};

static const wvec64 u003 = {
	0xc141, 0xc241, 0xc341, 0xc441, 0xc841, 0xca41, 0x00e1, 0xcb43,
	0xc145, 0xc245, 0xc345, 0xc845, 0xc149, 0xc249, 0xc349, 0xc849,
	0x00e2, 0xc44e, 0xc14f, 0xc24f, 0xc34f, 0xc44f, 0xc84f, 0x00b4,
	0x00e9, 0xc155, 0xc255, 0xc355, 0xc855, 0xc259, 0x00ec, 0x00fb,
	0xc161, 0xc261, 0xc361, 0xc461, 0xc861, 0xca61, 0x00f1, 0xcb63,
	0xc165, 0xc265, 0xc365, 0xc865, 0xc169, 0xc269, 0xc369, 0xc869,
	0x00f3, 0xc46e, 0xc16f, 0xc26f, 0xc36f, 0xc46f, 0xc86f, 0x00b8,
	0x00f9, 0xc175, 0xc275, 0xc375, 0xc875, 0xc279, 0x00fc, 0xc879};

/* These codes are used here but not defined by T.61:
 * x114 = xc6/x45, x115 = xc6/x65, x12c = xc6/x49, x12d = xc6/x69
 */
static const wvec64 u010 = {
	0xc541, 0xc561, 0xc641, 0xc661, 0xce41, 0xce61, 0xc243, 0xc263,
	0xc343, 0xc363, 0xc743, 0xc763, 0xcf43, 0xcf63, 0xcf44, 0xcf64,
	0x003f, 0x00f2, 0xc545, 0xc565, 0xc645, 0xc665, 0xc745, 0xc765,
	0xce45, 0xce65, 0xcf45, 0xcf65, 0xc347, 0xc367, 0xc647, 0xc667,
	0xc747, 0xc767, 0xcb47, 0xcb67, 0xc348, 0xc368, 0x00e4, 0x00f4,
	0xc449, 0xc469, 0xc549, 0xc569, 0xc649, 0xc669, 0xce49, 0xce69,
	0xc749, 0x00f5, 0x00e6, 0x00f6, 0xc34a, 0xc36a, 0xcb4b, 0xcb6b,
	0x00f0, 0xc24c, 0xc26c, 0xcb4c, 0xcb6c, 0xcf4c, 0xcf6c, 0x00e7};

/* These codes are used here but not defined by T.61:
 * x14e = xc6/x4f, x14f = xc6/x6f
 */
static const wvec64 u011 = {
	0x00f7, 0x00e8, 0x00f8, 0xc24e, 0xc26e, 0xcb4e, 0xcb6e, 0xcf4e,
	0xcf6e, 0x00ef, 0x00ee, 0x00fe, 0xc54f, 0xc56f, 0xc64f, 0xc66f,
	0xcd4f, 0xcd6f, 0x00ea, 0x00fa, 0xc252, 0xc272, 0xcb52, 0xcb72,
	0xcf52, 0xcf72, 0xc253, 0xc273, 0xc353, 0xc373, 0xcb53, 0xcb73,
	0xcf53, 0xcf73, 0xcb54, 0xcb74, 0xcf54, 0xcf74, 0x00ed, 0x00fd,
	0xc455, 0xc475, 0xc555, 0xc575, 0xc655, 0xc675, 0xca55, 0xca75,
	0xcd55, 0xcd75, 0xce55, 0xce75, 0xc357, 0xc377, 0xc359, 0xc379,
	0xc859, 0xc25a, 0xc27a, 0xc75a, 0xc77a, 0xcf5a, 0xcf7a, 0x003f};

/* All of the codes in this block are undefined in T.61.
 */
static const wvec64 u013 = {
	0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
	0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0xcf41, 0xcf61, 0xcf49,
	0xcf69, 0xcf4f, 0xcf6f, 0xcf55, 0xcf75, 0x003f, 0x003f, 0x003f, 
	0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
	0x003f, 0x003f, 0xc5e1, 0xc5f1, 0x003f, 0x003f, 0xcf47, 0xcf67,
	0xcf4b, 0xcf6b, 0xce4f, 0xce6f, 0x003f, 0x003f, 0x003f, 0x003f,
	0xcf6a, 0x003f, 0x003f, 0x003f, 0xc247, 0xc267, 0x003f, 0x003f,
	0xc14e, 0xc16e, 0x003f, 0x003f, 0xc2e1, 0xc2f1, 0x003f, 0x003f};

/* All of the codes in this block are undefined in T.61.
 */
static const wvec64 u020 = {
	0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
	0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
	0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
	0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0xcf48, 0xcf68,
	0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0xc741, 0xc761,
	0xcb45, 0xcb65, 0x003f, 0x003f, 0x003f, 0x003f, 0xc74f, 0xc76f,
	0x003f, 0x003f, 0xc559, 0xc579, 0x003f, 0x003f, 0x003f, 0x003f,
	0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f};

static const wvec64 u023 = {
	0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0xcf20,
	0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
	0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
	0xc620, 0xc720, 0xca20, 0xce20, 0x003f, 0xcd20, 0x003f, 0x003f,
	0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
	0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
	0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
	0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f};

/* These are the non-spacing characters by themselves. They should
 * never appear by themselves in actual text.
 */
static const wvec64 u030 = {
	0x00c1, 0x00c2, 0x00c3, 0x00c4, 0x00c5, 0x003f, 0x00c6, 0x00c7,
	0x00c8, 0x003f, 0x00ca, 0x00cd, 0x00cf, 0x003f, 0x003f, 0x003f,
	0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
	0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
	0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x00cb,
	0x00ce, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
	0x003f, 0x003f, 0x00cc, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
	0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f};

/* None of the following blocks are defined in T.61.
 */
static const wvec64 u1e0 = {
	0x003f, 0x003f, 0xc742, 0xc762, 0x003f, 0x003f, 0x003f, 0x003f, 
	0x003f, 0x003f, 0xc744, 0xc764, 0x003f, 0x003f, 0x003f, 0x003f,
	0xcb44, 0xcb64, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
	0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0xc746, 0xc766,
	0xc547, 0xc567, 0xc748, 0xc768, 0x003f, 0x003f, 0xc848, 0xc868,
	0xcb48, 0xcb68, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
	0xc24b, 0xc26b, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
	0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0xc24d, 0xc26d,
};

static const wvec64 u1e1 = {
	0xc74d, 0xc76d, 0x003f, 0x003f, 0xc74e, 0xc76e, 0x003f, 0x003f,
	0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
	0x003f, 0x003f, 0x003f, 0x003f, 0xc250, 0xc270, 0xc750, 0xc770,
	0xc752, 0xc772, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
	0xc753, 0xc773, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
	0x003f, 0x003f, 0xc754, 0xc774, 0x003f, 0x003f, 0x003f, 0x003f,
	0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
	0x003f, 0x003f, 0x003f, 0x003f, 0xc456, 0xc476, 0x003f, 0x003f,
};

static const wvec64 u1e2 = {
	0xc157, 0xc177, 0xc257, 0xc277, 0xc857, 0xc877, 0xc757, 0xc777,
	0x003f, 0x003f, 0xc758, 0xc778, 0xc858, 0xc878, 0xc759, 0xc779,
	0xc35a, 0xc37a, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0xc874,
	0xca77, 0xca79, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
	0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
	0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
	0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
	0x003f, 0x003f, 0x003f, 0x003f, 0xc445, 0xc465, 0x003f, 0x003f,
};

static const wvec64 u1e3 = {
	0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
	0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
	0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
	0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
	0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
	0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
	0x003f, 0x003f, 0xc159, 0xc179, 0x003f, 0x003f, 0x003f, 0x003f,
	0xc459, 0xc479, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f, 0x003f,
};

static const wvec64 *wc00[] = {
	&u000, &u001, &u002, &u003,
	&u010, &u011, NULL, &u013,
	&u020, NULL, NULL, &u023,
	&u030, NULL, NULL, NULL};

static const wvec64 *wc1e[] = {
	&u1e0, &u1e1, &u1e2, &u1e3};


int ldap_utf8s_to_t61s( struct berval *src, struct berval *dst )
{
	char *c, *d;
	wchar_t tmp;
	int i, j, tlen = 0;

	/* Just count the length of the T.61 result first */
	for (i=0,c=src->bv_val; i < src->bv_len;) {
		j = ldap_x_utf8_to_wc( &tmp, c );
		if (j == -1)
			return LDAP_INVALID_SYNTAX;
		switch (tmp >> 8) {
		case 0x00:
		case 0x01:
		case 0x02:
		case 0x03:
			if (wc00[tmp >> 6] &&
				((*wc00[tmp >> 6])[tmp & 0x3f] & 0xff00)) {
				tlen++;
			}
			tlen++;
			break;
		case 0x1e:
			if ((*wc1e[(tmp >> 6) & 3])[tmp & 0x3f] & 0xff00) {
				tlen++;
			}
		case 0x21:
		default:
			tlen ++;
			break;
		}
		i += j;
		c += j;
	}
	dst->bv_len = tlen;
	dst->bv_val = LDAP_MALLOC( tlen+1 );
	if (!dst->bv_val)
		return LDAP_NO_MEMORY;
	
	d = dst->bv_val;
	for (i=0,c=src->bv_val; i < src->bv_len;) {
		j = ldap_x_utf8_to_wc( &tmp, c );
		switch (tmp >> 8) {
		case 0x00:
		case 0x01:
		case 0x02:
			if (wc00[tmp >> 6]) {
				tmp = (*wc00[tmp >> 6])[tmp & 0x3f];
				if (tmp & 0xff00)
					*d++ = (tmp >> 8);
				*d++ = tmp & 0xff;
			} else {
				*d++ = 0x3f;
			}
			break;
		case 0x03:
			/* swap order of non-spacing characters */
			if (wc00[tmp >> 6]) {
				wchar_t t2 = (*wc00[tmp >> 6])[tmp & 0x3f];
				if (t2 != 0x3f) {
					d[0] = d[-1];
					d[-1] = t2;
					d++;
				} else {
					*d++ = 0x3f;
				}
			} else {
				*d++ = 0x3f;
			}
			break;
		case 0x1e:
			tmp = (*wc1e[(tmp >> 6) & 3])[tmp & 0x3f];
			if (tmp & 0xff00)
				*d++ = (tmp >> 8);
			*d++ = tmp & 0xff;
			break;
		case 0x21:
			if (tmp == 0x2126) {
				*d++ = 0xe0;
				break;
			}
			/* FALLTHRU */
		default:
			*d++ = 0x3f;
			break;
		}
		i += j;
		c += j;
	}
	*d = '\0';
	return LDAP_SUCCESS;
}