GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libcrypto/asn1/a_strex.c Lines: 130 276 47.1 %
Date: 2017-11-07 Branches: 72 206 35.0 %

Line Branch Exec Source
1
/* $OpenBSD: a_strex.c,v 1.25 2015/02/07 13:19:15 doug Exp $ */
2
/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3
 * project 2000.
4
 */
5
/* ====================================================================
6
 * Copyright (c) 2000 The OpenSSL Project.  All rights reserved.
7
 *
8
 * Redistribution and use in source and binary forms, with or without
9
 * modification, are permitted provided that the following conditions
10
 * are met:
11
 *
12
 * 1. Redistributions of source code must retain the above copyright
13
 *    notice, this list of conditions and the following disclaimer.
14
 *
15
 * 2. Redistributions in binary form must reproduce the above copyright
16
 *    notice, this list of conditions and the following disclaimer in
17
 *    the documentation and/or other materials provided with the
18
 *    distribution.
19
 *
20
 * 3. All advertising materials mentioning features or use of this
21
 *    software must display the following acknowledgment:
22
 *    "This product includes software developed by the OpenSSL Project
23
 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24
 *
25
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26
 *    endorse or promote products derived from this software without
27
 *    prior written permission. For written permission, please contact
28
 *    licensing@OpenSSL.org.
29
 *
30
 * 5. Products derived from this software may not be called "OpenSSL"
31
 *    nor may "OpenSSL" appear in their names without prior written
32
 *    permission of the OpenSSL Project.
33
 *
34
 * 6. Redistributions of any form whatsoever must retain the following
35
 *    acknowledgment:
36
 *    "This product includes software developed by the OpenSSL Project
37
 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38
 *
39
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
43
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50
 * OF THE POSSIBILITY OF SUCH DAMAGE.
51
 * ====================================================================
52
 *
53
 * This product includes cryptographic software written by Eric Young
54
 * (eay@cryptsoft.com).  This product includes software written by Tim
55
 * Hudson (tjh@cryptsoft.com).
56
 *
57
 */
58
59
#include <stdio.h>
60
#include <string.h>
61
62
#include <openssl/asn1.h>
63
#include <openssl/crypto.h>
64
#include <openssl/x509.h>
65
66
#include "asn1_locl.h"
67
68
#include "charmap.h"
69
70
/* ASN1_STRING_print_ex() and X509_NAME_print_ex().
71
 * Enhanced string and name printing routines handling
72
 * multibyte characters, RFC2253 and a host of other
73
 * options.
74
 */
75
76
#define CHARTYPE_BS_ESC		(ASN1_STRFLGS_ESC_2253 | CHARTYPE_FIRST_ESC_2253 | CHARTYPE_LAST_ESC_2253)
77
78
#define ESC_FLAGS (ASN1_STRFLGS_ESC_2253 | \
79
		  ASN1_STRFLGS_ESC_QUOTE | \
80
		  ASN1_STRFLGS_ESC_CTRL | \
81
		  ASN1_STRFLGS_ESC_MSB)
82
83
84
/* Three IO functions for sending data to memory, a BIO and
85
 * and a FILE pointer.
86
 */
87
static int
88
send_bio_chars(void *arg, const void *buf, int len)
89
{
90
1728
	if (!arg)
91
388
		return 1;
92
476
	if (BIO_write(arg, buf, len) != len)
93
		return 0;
94
476
	return 1;
95
864
}
96
97
static int
98
send_fp_chars(void *arg, const void *buf, int len)
99
{
100
	if (!arg)
101
		return 1;
102
	if (fwrite(buf, 1, (size_t)len, arg) != (size_t)len)
103
		return 0;
104
	return 1;
105
}
106
107
typedef int char_io(void *arg, const void *buf, int len);
108
109
/* This function handles display of
110
 * strings, one character at a time.
111
 * It is passed an unsigned long for each
112
 * character because it could come from 2 or even
113
 * 4 byte forms.
114
 */
115
116
static int
117
do_esc_char(unsigned long c, unsigned char flags, char *do_quotes,
118
    char_io *io_ch, void *arg)
119
{
120
1552
	unsigned char chflgs, chtmp;
121
776
	char tmphex[sizeof(long) * 2 + 3];
122
123
776
	if (c > 0xffffffffL)
124
		return -1;
125
776
	if (c > 0xffff) {
126
		snprintf(tmphex, sizeof tmphex, "\\W%08lX", c);
127
		if (!io_ch(arg, tmphex, 10))
128
			return -1;
129
		return 10;
130
	}
131
776
	if (c > 0xff) {
132
		snprintf(tmphex, sizeof tmphex, "\\U%04lX", c);
133
		if (!io_ch(arg, tmphex, 6))
134
			return -1;
135
		return 6;
136
	}
137
776
	chtmp = (unsigned char)c;
138
776
	if (chtmp > 0x7f)
139
		chflgs = flags & ASN1_STRFLGS_ESC_MSB;
140
	else
141
776
		chflgs = char_type[chtmp] & flags;
142
776
	if (chflgs & CHARTYPE_BS_ESC) {
143
		/* If we don't escape with quotes, signal we need quotes */
144
		if (chflgs & ASN1_STRFLGS_ESC_QUOTE) {
145
			if (do_quotes)
146
				*do_quotes = 1;
147
			if (!io_ch(arg, &chtmp, 1))
148
				return -1;
149
			return 1;
150
		}
151
		if (!io_ch(arg, "\\", 1))
152
			return -1;
153
		if (!io_ch(arg, &chtmp, 1))
154
			return -1;
155
		return 2;
156
	}
157
776
	if (chflgs & (ASN1_STRFLGS_ESC_CTRL|ASN1_STRFLGS_ESC_MSB)) {
158
		snprintf(tmphex, sizeof tmphex, "\\%02X", chtmp);
159
		if (!io_ch(arg, tmphex, 3))
160
			return -1;
161
		return 3;
162
	}
163
	/* If we get this far and do any escaping at all must escape
164
	 * the escape character itself: backslash.
165
	 */
166

776
	if (chtmp == '\\' && flags & ESC_FLAGS) {
167
		if (!io_ch(arg, "\\\\", 2))
168
			return -1;
169
		return 2;
170
	}
171
776
	if (!io_ch(arg, &chtmp, 1))
172
		return -1;
173
776
	return 1;
174
776
}
175
176
#define BUF_TYPE_WIDTH_MASK	0x7
177
#define BUF_TYPE_CONVUTF8	0x8
178
179
/* This function sends each character in a buffer to
180
 * do_esc_char(). It interprets the content formats
181
 * and converts to or from UTF8 as appropriate.
182
 */
183
184
static int
185
do_buf(unsigned char *buf, int buflen, int type, unsigned char flags,
186
    char *quotes, char_io *io_ch, void *arg)
187
{
188
	int i, outlen, len;
189
	unsigned char orflags, *p, *q;
190
128
	unsigned long c;
191
192
	p = buf;
193
64
	q = buf + buflen;
194
	outlen = 0;
195
904
	while (p != q) {
196

840
		if (p == buf && flags & ASN1_STRFLGS_ESC_2253)
197
64
			orflags = CHARTYPE_FIRST_ESC_2253;
198
		else
199
			orflags = 0;
200

776
		switch (type & BUF_TYPE_WIDTH_MASK) {
201
		case 4:
202
			c = ((unsigned long)*p++) << 24;
203
			c |= ((unsigned long)*p++) << 16;
204
			c |= ((unsigned long)*p++) << 8;
205
			c |= *p++;
206
			if (c > UNICODE_MAX || UNICODE_IS_SURROGATE(c))
207
				return -1;
208
			break;
209
210
		case 2:
211
			c = ((unsigned long)*p++) << 8;
212
			c |= *p++;
213
			if (UNICODE_IS_SURROGATE(c))
214
				return -1;
215
			break;
216
217
		case 1:
218
776
			c = *p++;
219
776
			break;
220
221
		case 0:
222
			i = UTF8_getc(p, q - p, &c);
223
			if (i < 0)
224
				return -1;	/* Invalid UTF8String */
225
			p += i;
226
			break;
227
		default:
228
			return -1;		/* invalid width */
229
		}
230

840
		if (p == q && flags & ASN1_STRFLGS_ESC_2253)
231
64
			orflags = CHARTYPE_LAST_ESC_2253;
232
776
		if (type & BUF_TYPE_CONVUTF8) {
233
32
			unsigned char utfbuf[6];
234
			int utflen;
235
236
32
			utflen = UTF8_putc(utfbuf, sizeof utfbuf, c);
237
32
			if (utflen < 0)
238
				return -1;
239
128
			for (i = 0; i < utflen; i++) {
240
				/* We don't need to worry about setting orflags correctly
241
				 * because if utflen==1 its value will be correct anyway
242
				 * otherwise each character will be > 0x7f and so the
243
				 * character will never be escaped on first and last.
244
				 */
245
64
				len = do_esc_char(utfbuf[i],
246
32
				    (unsigned char)(flags | orflags), quotes,
247
				    io_ch, arg);
248
32
				if (len < 0)
249
					return -1;
250
32
				outlen += len;
251
			}
252
64
		} else {
253
744
			len = do_esc_char(c, (unsigned char)(flags | orflags),
254
			    quotes, io_ch, arg);
255
744
			if (len < 0)
256
				return -1;
257
744
			outlen += len;
258
		}
259
	}
260
64
	return outlen;
261
64
}
262
263
/* This function hex dumps a buffer of characters */
264
265
static int
266
do_hex_dump(char_io *io_ch, void *arg, unsigned char *buf, int buflen)
267
{
268
	static const char hexdig[] = "0123456789ABCDEF";
269
	unsigned char *p, *q;
270
	char hextmp[2];
271
	if (arg) {
272
		p = buf;
273
		q = buf + buflen;
274
		while (p != q) {
275
			hextmp[0] = hexdig[*p >> 4];
276
			hextmp[1] = hexdig[*p & 0xf];
277
			if (!io_ch(arg, hextmp, 2))
278
				return -1;
279
			p++;
280
		}
281
	}
282
	return buflen << 1;
283
}
284
285
/* "dump" a string. This is done when the type is unknown,
286
 * or the flags request it. We can either dump the content
287
 * octets or the entire DER encoding. This uses the RFC2253
288
 * #01234 format.
289
 */
290
291
static int
292
do_dump(unsigned long lflags, char_io *io_ch, void *arg, ASN1_STRING *str)
293
{
294
	/* Placing the ASN1_STRING in a temp ASN1_TYPE allows
295
	 * the DER encoding to readily obtained
296
	 */
297
	ASN1_TYPE t;
298
	unsigned char *der_buf, *p;
299
	int outlen, der_len;
300
301
	if (!io_ch(arg, "#", 1))
302
		return -1;
303
	/* If we don't dump DER encoding just dump content octets */
304
	if (!(lflags & ASN1_STRFLGS_DUMP_DER)) {
305
		outlen = do_hex_dump(io_ch, arg, str->data, str->length);
306
		if (outlen < 0)
307
			return -1;
308
		return outlen + 1;
309
	}
310
	t.type = str->type;
311
	t.value.ptr = (char *)str;
312
	der_len = i2d_ASN1_TYPE(&t, NULL);
313
	der_buf = malloc(der_len);
314
	if (!der_buf)
315
		return -1;
316
	p = der_buf;
317
	i2d_ASN1_TYPE(&t, &p);
318
	outlen = do_hex_dump(io_ch, arg, der_buf, der_len);
319
	free(der_buf);
320
	if (outlen < 0)
321
		return -1;
322
	return outlen + 1;
323
}
324
325
/* Lookup table to convert tags to character widths,
326
 * 0 = UTF8 encoded, -1 is used for non string types
327
 * otherwise it is the number of bytes per character
328
 */
329
330
static const signed char tag2nbyte[] = {
331
	-1, -1, -1, -1, -1,	/* 0-4 */
332
	-1, -1, -1, -1, -1,	/* 5-9 */
333
	-1, -1, 0, -1,		/* 10-13 */
334
	-1, -1, -1, -1,		/* 15-17 */
335
	-1, 1, 1,		/* 18-20 */
336
	-1, 1, 1, 1,		/* 21-24 */
337
	-1, 1, -1,		/* 25-27 */
338
	4, -1, 2		/* 28-30 */
339
};
340
341
/* This is the main function, print out an
342
 * ASN1_STRING taking note of various escape
343
 * and display options. Returns number of
344
 * characters written or -1 if an error
345
 * occurred.
346
 */
347
348
static int
349
do_print_ex(char_io *io_ch, void *arg, unsigned long lflags, ASN1_STRING *str)
350
{
351
	int outlen, len;
352
	int type;
353
64
	char quotes;
354
	unsigned char flags;
355
356
32
	quotes = 0;
357
	/* Keep a copy of escape flags */
358
32
	flags = (unsigned char)(lflags & ESC_FLAGS);
359
32
	type = str->type;
360
	outlen = 0;
361
362
32
	if (lflags & ASN1_STRFLGS_SHOW_TYPE) {
363
		const char *tagname;
364
		tagname = ASN1_tag2str(type);
365
		outlen += strlen(tagname);
366
		if (!io_ch(arg, tagname, outlen) || !io_ch(arg, ":", 1))
367
			return -1;
368
		outlen++;
369
	}
370
371
	/* Decide what to do with type, either dump content or display it */
372
373
	/* Dump everything */
374
32
	if (lflags & ASN1_STRFLGS_DUMP_ALL)
375
		type = -1;
376
	/* Ignore the string type */
377
32
	else if (lflags & ASN1_STRFLGS_IGNORE_TYPE)
378
		type = 1;
379
	else {
380
		/* Else determine width based on type */
381
32
		if ((type > 0) && (type < 31))
382
32
			type = tag2nbyte[type];
383
		else
384
			type = -1;
385

32
		if ((type == -1) && !(lflags & ASN1_STRFLGS_DUMP_UNKNOWN))
386
			type = 1;
387
	}
388
389
32
	if (type == -1) {
390
		len = do_dump(lflags, io_ch, arg, str);
391
		if (len < 0)
392
			return -1;
393
		outlen += len;
394
		return outlen;
395
	}
396
397
32
	if (lflags & ASN1_STRFLGS_UTF8_CONVERT) {
398
		/* Note: if string is UTF8 and we want
399
		 * to convert to UTF8 then we just interpret
400
		 * it as 1 byte per character to avoid converting
401
		 * twice.
402
		 */
403
32
		if (!type)
404
24
			type = 1;
405
		else
406
8
			type |= BUF_TYPE_CONVUTF8;
407
	}
408
409
32
	len = do_buf(str->data, str->length, type, flags, &quotes, io_ch, NULL);
410
32
	if (len < 0)
411
		return -1;
412
32
	outlen += len;
413
32
	if (quotes)
414
		outlen += 2;
415
32
	if (!arg)
416
		return outlen;
417

32
	if (quotes && !io_ch(arg, "\"", 1))
418
		return -1;
419
32
	if (do_buf(str->data, str->length, type, flags, NULL, io_ch, arg) < 0)
420
		return -1;
421

32
	if (quotes && !io_ch(arg, "\"", 1))
422
		return -1;
423
32
	return outlen;
424
32
}
425
426
/* Used for line indenting: print 'indent' spaces */
427
428
static int
429
do_indent(char_io *io_ch, void *arg, int indent)
430
{
431
	int i;
432
96
	for (i = 0; i < indent; i++)
433
		if (!io_ch(arg, " ", 1))
434
			return 0;
435
32
	return 1;
436
32
}
437
438
#define FN_WIDTH_LN	25
439
#define FN_WIDTH_SN	10
440
441
static int
442
do_name_ex(char_io *io_ch, void *arg, X509_NAME *n, int indent,
443
    unsigned long flags)
444
{
445
	int i, prev = -1, orflags, cnt;
446
	int fn_opt, fn_nid;
447
	ASN1_OBJECT *fn;
448
	ASN1_STRING *val;
449
	X509_NAME_ENTRY *ent;
450
16
	char objtmp[80];
451
	const char *objbuf;
452
	int outlen, len;
453
	char *sep_dn, *sep_mv, *sep_eq;
454
	int sep_dn_len, sep_mv_len, sep_eq_len;
455
456
8
	if (indent < 0)
457
		indent = 0;
458
	outlen = indent;
459
8
	if (!do_indent(io_ch, arg, indent))
460
		return -1;
461
462

8
	switch (flags & XN_FLAG_SEP_MASK) {
463
	case XN_FLAG_SEP_MULTILINE:
464
		sep_dn = "\n";
465
		sep_dn_len = 1;
466
		sep_mv = " + ";
467
		sep_mv_len = 3;
468
		break;
469
470
	case XN_FLAG_SEP_COMMA_PLUS:
471
		sep_dn = ",";
472
		sep_dn_len = 1;
473
		sep_mv = "+";
474
		sep_mv_len = 1;
475
		indent = 0;
476
		break;
477
478
	case XN_FLAG_SEP_CPLUS_SPC:
479
		sep_dn = ", ";
480
		sep_dn_len = 2;
481
		sep_mv = " + ";
482
		sep_mv_len = 3;
483
		indent = 0;
484
8
		break;
485
486
	case XN_FLAG_SEP_SPLUS_SPC:
487
		sep_dn = "; ";
488
		sep_dn_len = 2;
489
		sep_mv = " + ";
490
		sep_mv_len = 3;
491
		indent = 0;
492
		break;
493
494
	default:
495
		return -1;
496
	}
497
498
8
	if (flags & XN_FLAG_SPC_EQ) {
499
		sep_eq = " = ";
500
		sep_eq_len = 3;
501
8
	} else {
502
		sep_eq = "=";
503
		sep_eq_len = 1;
504
	}
505
506
8
	fn_opt = flags & XN_FLAG_FN_MASK;
507
508
8
	cnt = X509_NAME_entry_count(n);
509
80
	for (i = 0; i < cnt; i++) {
510
32
		if (flags & XN_FLAG_DN_REV)
511
			ent = X509_NAME_get_entry(n, cnt - i - 1);
512
		else
513
32
			ent = X509_NAME_get_entry(n, i);
514
32
		if (prev != -1) {
515
24
			if (prev == ent->set) {
516
				if (!io_ch(arg, sep_mv, sep_mv_len))
517
					return -1;
518
				outlen += sep_mv_len;
519
			} else {
520
24
				if (!io_ch(arg, sep_dn, sep_dn_len))
521
					return -1;
522
24
				outlen += sep_dn_len;
523
24
				if (!do_indent(io_ch, arg, indent))
524
					return -1;
525
24
				outlen += indent;
526
			}
527
		}
528
32
		prev = ent->set;
529
32
		fn = X509_NAME_ENTRY_get_object(ent);
530
32
		val = X509_NAME_ENTRY_get_data(ent);
531
32
		fn_nid = OBJ_obj2nid(fn);
532
32
		if (fn_opt != XN_FLAG_FN_NONE) {
533
			int objlen, fld_len;
534
64
			if ((fn_opt == XN_FLAG_FN_OID) ||
535
32
			    (fn_nid == NID_undef)) {
536
				OBJ_obj2txt(objtmp, sizeof objtmp, fn, 1);
537
				fld_len = 0; /* XXX: what should this be? */
538
				objbuf = objtmp;
539
			} else {
540
32
				if (fn_opt == XN_FLAG_FN_SN) {
541
					fld_len = FN_WIDTH_SN;
542
32
					objbuf = OBJ_nid2sn(fn_nid);
543
32
				} else if (fn_opt == XN_FLAG_FN_LN) {
544
					fld_len = FN_WIDTH_LN;
545
					objbuf = OBJ_nid2ln(fn_nid);
546
				} else {
547
					fld_len = 0; /* XXX: what should this be? */
548
					objbuf = "";
549
				}
550
			}
551
32
			objlen = strlen(objbuf);
552
32
			if (!io_ch(arg, objbuf, objlen))
553
				return -1;
554

64
			if ((objlen < fld_len) && (flags & XN_FLAG_FN_ALIGN)) {
555
				if (!do_indent(io_ch, arg, fld_len - objlen))
556
					return -1;
557
				outlen += fld_len - objlen;
558
			}
559
32
			if (!io_ch(arg, sep_eq, sep_eq_len))
560
				return -1;
561
32
			outlen += objlen + sep_eq_len;
562
32
		}
563
		/* If the field name is unknown then fix up the DER dump
564
		 * flag. We might want to limit this further so it will
565
 		 * DER dump on anything other than a few 'standard' fields.
566
		 */
567

32
		if ((fn_nid == NID_undef) &&
568
		    (flags & XN_FLAG_DUMP_UNKNOWN_FIELDS))
569
			orflags = ASN1_STRFLGS_DUMP_ALL;
570
		else
571
			orflags = 0;
572
573
32
		len = do_print_ex(io_ch, arg, flags | orflags, val);
574
32
		if (len < 0)
575
			return -1;
576
32
		outlen += len;
577
	}
578
8
	return outlen;
579
8
}
580
581
/* Wrappers round the main functions */
582
583
int
584
X509_NAME_print_ex(BIO *out, X509_NAME *nm, int indent, unsigned long flags)
585
{
586
152
	if (flags == XN_FLAG_COMPAT)
587
68
		return X509_NAME_print(out, nm, indent);
588
8
	return do_name_ex(send_bio_chars, out, nm, indent, flags);
589
76
}
590
591
int
592
X509_NAME_print_ex_fp(FILE *fp, X509_NAME *nm, int indent, unsigned long flags)
593
{
594
	if (flags == XN_FLAG_COMPAT) {
595
		BIO *btmp;
596
		int ret;
597
		btmp = BIO_new_fp(fp, BIO_NOCLOSE);
598
		if (!btmp)
599
			return -1;
600
		ret = X509_NAME_print(btmp, nm, indent);
601
		BIO_free(btmp);
602
		return ret;
603
	}
604
	return do_name_ex(send_fp_chars, fp, nm, indent, flags);
605
}
606
607
int
608
ASN1_STRING_print_ex(BIO *out, ASN1_STRING *str, unsigned long flags)
609
{
610
	return do_print_ex(send_bio_chars, out, flags, str);
611
}
612
613
int
614
ASN1_STRING_print_ex_fp(FILE *fp, ASN1_STRING *str, unsigned long flags)
615
{
616
	return do_print_ex(send_fp_chars, fp, flags, str);
617
}
618
619
/* Utility function: convert any string type to UTF8, returns number of bytes
620
 * in output string or a negative error code
621
 */
622
623
int
624
ASN1_STRING_to_UTF8(unsigned char **out, ASN1_STRING *in)
625
{
626
244440
	ASN1_STRING stmp, *str = &stmp;
627
	int mbflag, type, ret;
628
629
122220
	if (!in)
630
		return -1;
631
122220
	type = in->type;
632
122220
	if ((type < 0) || (type > 30))
633
		return -1;
634
122220
	mbflag = tag2nbyte[type];
635
122220
	if (mbflag == -1)
636
		return -1;
637
122220
	mbflag |= MBSTRING_FLAG;
638
122220
	stmp.data = NULL;
639
122220
	stmp.length = 0;
640
122220
	ret = ASN1_mbstring_copy(&str, in->data, in->length, mbflag,
641
	    B_ASN1_UTF8STRING);
642
122220
	if (ret < 0)
643
		return ret;
644
122220
	*out = stmp.data;
645
122220
	return stmp.length;
646
122220
}