1 /* a_strex.c */

     2 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) 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  © Portions copyright (c) 2006 Nokia Corporation.  All rights reserved.

    60  */

    61 

    62 #include <stdio.h>

    63 #include <string.h>

    64 #include "cryptlib.h"

    65 #include <openssl/crypto.h>

    66 #include <openssl/x509.h>

    67 #include <openssl/asn1.h>

    68 #if (defined(SYMBIAN) && (defined(__WINSCW__) || defined(__WINS__)))

    69 #include "libcrypto_wsd_macros.h"

    70 #include "libcrypto_wsd.h"

    71 #endif

    72 

    73 

    74 #include "charmap.h"

    75 

    76 /* ASN1_STRING_print_ex() and X509_NAME_print_ex().

    77  * Enhanced string and name printing routines handling

    78  * multibyte characters, RFC2253 and a host of other

    79  * options.

    80  */

    81 

    82 

    83 #define CHARTYPE_BS_ESC		(ASN1_STRFLGS_ESC_2253 | CHARTYPE_FIRST_ESC_2253 | CHARTYPE_LAST_ESC_2253)

    84 

    85 

    86 /* Three IO functions for sending data to memory, a BIO and

    87  * and a FILE pointer.

    88  */

    89 #if 0				/* never used */

    90 static int send_mem_chars(void *arg, const void *buf, int len)

    91 {

    92 	unsigned char **out = arg;

    93 	if(!out) return 1;

    94 	memcpy(*out, buf, len);

    95 	*out += len;

    96 	return 1;

    97 }

    98 #endif

    99 

   100 static int send_bio_chars(void *arg, const void *buf, int len)

   101 {

   102 	if(!arg) return 1;

   103 	if(BIO_write(arg, buf, len) != len) return 0;

   104 	return 1;

   105 }

   106 

   107 static int send_fp_chars(void *arg, const void *buf, int len)

   108 {

   109 	if(!arg) return 1;

   110 	if(fwrite(buf, 1, len, arg) != (unsigned int)len) return 0;

   111 	return 1;

   112 }

   113 

   114 typedef int char_io(void *arg, const void *buf, int len);

   115 

   116 /* This function handles display of

   117  * strings, one character at a time.

   118  * It is passed an unsigned long for each

   119  * character because it could come from 2 or even

   120  * 4 byte forms.

   121  */

   122 

   123 static int do_esc_char(unsigned long c, unsigned char flags, char *do_quotes, char_io *io_ch, void *arg)

   124 {

   125 	unsigned char chflgs, chtmp;

   126 	char tmphex[HEX_SIZE(long)+3];

   127 

   128 	if(c > 0xffffffffL)

   129 		return -1;

   130 	if(c > 0xffff) {

   131 		BIO_snprintf(tmphex, sizeof tmphex, "\\W%08lX", c);

   132 		if(!io_ch(arg, tmphex, 10)) return -1;

   133 		return 10;

   134 	}

   135 	if(c > 0xff) {

   136 		BIO_snprintf(tmphex, sizeof tmphex, "\\U%04lX", c);

   137 		if(!io_ch(arg, tmphex, 6)) return -1;

   138 		return 6;

   139 	}

   140 	chtmp = (unsigned char)c;

   141 	if(chtmp > 0x7f) chflgs = flags & ASN1_STRFLGS_ESC_MSB;

   142 	else chflgs = char_type[chtmp] & flags;

   143 	if(chflgs & CHARTYPE_BS_ESC) {

   144 		/* If we don't escape with quotes, signal we need quotes */

   145 		if(chflgs & ASN1_STRFLGS_ESC_QUOTE) {

   146 			if(do_quotes) *do_quotes = 1;

   147 			if(!io_ch(arg, &chtmp, 1)) return -1;

   148 			return 1;

   149 		}

   150 		if(!io_ch(arg, "\\", 1)) return -1;

   151 		if(!io_ch(arg, &chtmp, 1)) return -1;

   152 		return 2;

   153 	}

   154 	if(chflgs & (ASN1_STRFLGS_ESC_CTRL|ASN1_STRFLGS_ESC_MSB)) {

   155 		BIO_snprintf(tmphex, 11, "\\%02X", chtmp);

   156 		if(!io_ch(arg, tmphex, 3)) return -1;

   157 		return 3;

   158 	}

   159 	if(!io_ch(arg, &chtmp, 1)) return -1;

   160 	return 1;

   161 }

   162 

   163 #define BUF_TYPE_WIDTH_MASK	0x7

   164 #define BUF_TYPE_CONVUTF8	0x8

   165 

   166 /* This function sends each character in a buffer to

   167  * do_esc_char(). It interprets the content formats

   168  * and converts to or from UTF8 as appropriate.

   169  */

   170 

   171 static int do_buf(unsigned char *buf, int buflen,

   172 			int type, unsigned char flags, char *quotes, char_io *io_ch, void *arg)

   173 {

   174 	int i, outlen, len;

   175 	unsigned char orflags, *p, *q;

   176 	unsigned long c;

   177 	p = buf;

   178 	q = buf + buflen;

   179 	outlen = 0;

   180 	while(p != q) {

   181 		if(p == buf && flags & ASN1_STRFLGS_ESC_2253) orflags = CHARTYPE_FIRST_ESC_2253;

   182 		else orflags = 0;

   183 		switch(type & BUF_TYPE_WIDTH_MASK) {

   184 			case 4:

   185 			c = ((unsigned long)*p++) << 24;

   186 			c |= ((unsigned long)*p++) << 16;

   187 			c |= ((unsigned long)*p++) << 8;

   188 			c |= *p++;

   189 			break;

   190 

   191 			case 2:

   192 			c = ((unsigned long)*p++) << 8;

   193 			c |= *p++;

   194 			break;

   195 

   196 			case 1:

   197 			c = *p++;

   198 			break;

   199 			

   200 			case 0:

   201 			i = UTF8_getc(p, buflen, &c);

   202 			if(i < 0) return -1;	/* Invalid UTF8String */

   203 			p += i;

   204 			break;

   205 			default:

   206 			return -1;	/* invalid width */

   207 

   208 		}

   209 		if (p == q && flags & ASN1_STRFLGS_ESC_2253) orflags = CHARTYPE_LAST_ESC_2253;

   210 		if(type & BUF_TYPE_CONVUTF8) {

   211 			unsigned char utfbuf[6];

   212 			int utflen;

   213 			utflen = UTF8_putc(utfbuf, sizeof utfbuf, c);

   214 			for(i = 0; i < utflen; i++) {

   215 				/* We don't need to worry about setting orflags correctly

   216 				 * because if utflen==1 its value will be correct anyway 

   217 				 * otherwise each character will be > 0x7f and so the 

   218 				 * character will never be escaped on first and last.

   219 				 */

   220 				len = do_esc_char(utfbuf[i], (unsigned char)(flags | orflags), quotes, io_ch, arg);

   221 				if(len < 0) return -1;

   222 				outlen += len;

   223 			}

   224 		} else {

   225 			len = do_esc_char(c, (unsigned char)(flags | orflags), quotes, io_ch, arg);

   226 			if(len < 0) return -1;

   227 			outlen += len;

   228 		}

   229 	}

   230 	return outlen;

   231 }

   232 

   233 /* This function hex dumps a buffer of characters */

   234 

   235 static int do_hex_dump(char_io *io_ch, void *arg, unsigned char *buf, int buflen)

   236 {

   237 

   238 	static const char hexdig[] = "0123456789ABCDEF";

   239 	unsigned char *p, *q;

   240 	char hextmp[2];

   241 	if(arg) {

   242 		p = buf;

   243 		q = buf + buflen;

   244 		while(p != q) {

   245 			hextmp[0] = hexdig[*p >> 4];

   246 			hextmp[1] = hexdig[*p & 0xf];

   247 			if(!io_ch(arg, hextmp, 2)) return -1;

   248 			p++;

   249 		}

   250 	}

   251 	return buflen << 1;

   252 }

   253 

   254 /* "dump" a string. This is done when the type is unknown,

   255  * or the flags request it. We can either dump the content

   256  * octets or the entire DER encoding. This uses the RFC2253

   257  * #01234 format.

   258  */

   259 

   260 static int do_dump(unsigned long lflags, char_io *io_ch, void *arg, ASN1_STRING *str)

   261 {

   262 	/* Placing the ASN1_STRING in a temp ASN1_TYPE allows

   263 	 * the DER encoding to readily obtained

   264 	 */

   265 	ASN1_TYPE t;

   266 	unsigned char *der_buf, *p;

   267 	int outlen, der_len;

   268 

   269 	if(!io_ch(arg, "#", 1)) return -1;

   270 	/* If we don't dump DER encoding just dump content octets */

   271 	if(!(lflags & ASN1_STRFLGS_DUMP_DER)) {

   272 		outlen = do_hex_dump(io_ch, arg, str->data, str->length);

   273 		if(outlen < 0) return -1;

   274 		return outlen + 1;

   275 	}

   276 	t.type = str->type;

   277 	t.value.ptr = (char *)str;

   278 	der_len = i2d_ASN1_TYPE(&t, NULL);

   279 	der_buf = OPENSSL_malloc(der_len);

   280 	if(!der_buf) return -1;

   281 	p = der_buf;

   282 	i2d_ASN1_TYPE(&t, &p);

   283 	outlen = do_hex_dump(io_ch, arg, der_buf, der_len);

   284 	OPENSSL_free(der_buf);

   285 	if(outlen < 0) return -1;

   286 	return outlen + 1;

   287 }

   288 

   289 /* Lookup table to convert tags to character widths,

   290  * 0 = UTF8 encoded, -1 is used for non string types

   291  * otherwise it is the number of bytes per character

   292  */

   293 

   294 

   295 static const signed char tag2nbyte[] = {

   296 	-1, -1, -1, -1, -1,	/* 0-4 */

   297 	-1, -1, -1, -1, -1,	/* 5-9 */

   298 	-1, -1, 0, -1,		/* 10-13 */

   299 	-1, -1, -1, -1,		/* 15-17 */

   300 	-1, 1, 1,		/* 18-20 */

   301 	-1, 1, 1, 1,		/* 21-24 */

   302 	-1, 1, -1,		/* 25-27 */

   303 	4, -1, 2		/* 28-30 */

   304 };

   305 

   306 #define ESC_FLAGS (ASN1_STRFLGS_ESC_2253 | \

   307 		  ASN1_STRFLGS_ESC_QUOTE | \

   308 		  ASN1_STRFLGS_ESC_CTRL | \

   309 		  ASN1_STRFLGS_ESC_MSB)

   310 

   311 /* This is the main function, print out an

   312  * ASN1_STRING taking note of various escape

   313  * and display options. Returns number of

   314  * characters written or -1 if an error

   315  * occurred.

   316  */

   317 

   318 static int do_print_ex(char_io *io_ch, void *arg, unsigned long lflags, ASN1_STRING *str)

   319 {

   320 	int outlen, len;

   321 	int type;

   322 	char quotes;

   323 	unsigned char flags;

   324 	quotes = 0;

   325 	/* Keep a copy of escape flags */

   326 	flags = (unsigned char)(lflags & ESC_FLAGS);

   327 

   328 	type = str->type;

   329 

   330 	outlen = 0;

   331 

   332 

   333 	if(lflags & ASN1_STRFLGS_SHOW_TYPE) {

   334 		const char *tagname;

   335 		tagname = ASN1_tag2str(type);

   336 		outlen += strlen(tagname);

   337 		if(!io_ch(arg, tagname, outlen) || !io_ch(arg, ":", 1)) return -1; 

   338 		outlen++;

   339 	}

   340 

   341 	/* Decide what to do with type, either dump content or display it */

   342 

   343 	/* Dump everything */

   344 	if(lflags & ASN1_STRFLGS_DUMP_ALL) type = -1;

   345 	/* Ignore the string type */

   346 	else if(lflags & ASN1_STRFLGS_IGNORE_TYPE) type = 1;

   347 	else {

   348 		/* Else determine width based on type */

   349 		if((type > 0) && (type < 31)) type = tag2nbyte[type];

   350 		else type = -1;

   351 		if((type == -1) && !(lflags & ASN1_STRFLGS_DUMP_UNKNOWN)) type = 1;

   352 	}

   353 

   354 	if(type == -1) {

   355 		len = do_dump(lflags, io_ch, arg, str);

   356 		if(len < 0) return -1;

   357 		outlen += len;

   358 		return outlen;

   359 	}

   360 

   361 	if(lflags & ASN1_STRFLGS_UTF8_CONVERT) {

   362 		/* Note: if string is UTF8 and we want

   363 		 * to convert to UTF8 then we just interpret

   364 		 * it as 1 byte per character to avoid converting

   365 		 * twice.

   366 		 */

   367 		if(!type) type = 1;

   368 		else type |= BUF_TYPE_CONVUTF8;

   369 	}

   370 

   371 	len = do_buf(str->data, str->length, type, flags, &quotes, io_ch, NULL);

   372 	if(len < 0) return -1;

   373 	outlen += len;

   374 	if(quotes) outlen += 2;

   375 	if(!arg) return outlen;

   376 	if(quotes && !io_ch(arg, "\"", 1)) return -1;

   377 	if(do_buf(str->data, str->length, type, flags, NULL, io_ch, arg) < 0)

   378 	return -1;

   379 	if(quotes && !io_ch(arg, "\"", 1)) return -1;

   380 	return outlen;

   381 }

   382 

   383 /* Used for line indenting: print 'indent' spaces */

   384 

   385 static int do_indent(char_io *io_ch, void *arg, int indent)

   386 {

   387 	int i;

   388 	for(i = 0; i < indent; i++)

   389 			if(!io_ch(arg, " ", 1)) return 0;

   390 	return 1;

   391 }

   392 

   393 #define FN_WIDTH_LN	25

   394 #define FN_WIDTH_SN	10

   395 

   396 static int do_name_ex(char_io *io_ch, void *arg, X509_NAME *n,

   397 				int indent, unsigned long flags)

   398 {

   399 	int i, prev = -1, orflags, cnt;

   400 	int fn_opt, fn_nid;

   401 	ASN1_OBJECT *fn;

   402 	ASN1_STRING *val;

   403 	X509_NAME_ENTRY *ent;

   404 	char objtmp[80];

   405 	const char *objbuf;

   406 	int outlen, len;

   407 	char *sep_dn, *sep_mv, *sep_eq;

   408 	int sep_dn_len, sep_mv_len, sep_eq_len;

   409 	if(indent < 0) indent = 0;

   410 	outlen = indent;

   411 	if(!do_indent(io_ch, arg, indent)) return -1;

   412 	switch (flags & XN_FLAG_SEP_MASK)

   413 	{

   414 		case XN_FLAG_SEP_MULTILINE:

   415 		sep_dn = "\n";

   416 		sep_dn_len = 1;

   417 		sep_mv = " + ";

   418 		sep_mv_len = 3;

   419 		break;

   420 

   421 		case XN_FLAG_SEP_COMMA_PLUS:

   422 		sep_dn = ",";

   423 		sep_dn_len = 1;

   424 		sep_mv = "+";

   425 		sep_mv_len = 1;

   426 		indent = 0;

   427 		break;

   428 

   429 		case XN_FLAG_SEP_CPLUS_SPC:

   430 		sep_dn = ", ";

   431 		sep_dn_len = 2;

   432 		sep_mv = " + ";

   433 		sep_mv_len = 3;

   434 		indent = 0;

   435 		break;

   436 

   437 		case XN_FLAG_SEP_SPLUS_SPC:

   438 		sep_dn = "; ";

   439 		sep_dn_len = 2;

   440 		sep_mv = " + ";

   441 		sep_mv_len = 3;

   442 		indent = 0;

   443 		break;

   444 

   445 		default:

   446 		return -1;

   447 	}

   448 

   449 	if(flags & XN_FLAG_SPC_EQ) {

   450 		sep_eq = " = ";

   451 		sep_eq_len = 3;

   452 	} else {

   453 		sep_eq = "=";

   454 		sep_eq_len = 1;

   455 	}

   456 

   457 	fn_opt = flags & XN_FLAG_FN_MASK;

   458 

   459 	cnt = X509_NAME_entry_count(n);	

   460 	for(i = 0; i < cnt; i++) {

   461 		if(flags & XN_FLAG_DN_REV)

   462 				ent = X509_NAME_get_entry(n, cnt - i - 1);

   463 		else ent = X509_NAME_get_entry(n, i);

   464 		if(prev != -1) {

   465 			if(prev == ent->set) {

   466 				if(!io_ch(arg, sep_mv, sep_mv_len)) return -1;

   467 				outlen += sep_mv_len;

   468 			} else {

   469 				if(!io_ch(arg, sep_dn, sep_dn_len)) return -1;

   470 				outlen += sep_dn_len;

   471 				if(!do_indent(io_ch, arg, indent)) return -1;

   472 				outlen += indent;

   473 			}

   474 		}

   475 		prev = ent->set;

   476 		fn = X509_NAME_ENTRY_get_object(ent);

   477 		val = X509_NAME_ENTRY_get_data(ent);

   478 		fn_nid = OBJ_obj2nid(fn);

   479 		if(fn_opt != XN_FLAG_FN_NONE) {

   480 			int objlen, fld_len;

   481 			if((fn_opt == XN_FLAG_FN_OID) || (fn_nid==NID_undef) ) {

   482 				OBJ_obj2txt(objtmp, sizeof objtmp, fn, 1);

   483 				fld_len = 0; /* XXX: what should this be? */

   484 				objbuf = objtmp;

   485 			} else {

   486 				if(fn_opt == XN_FLAG_FN_SN) {

   487 					fld_len = FN_WIDTH_SN;

   488 					objbuf = OBJ_nid2sn(fn_nid);

   489 				} else if(fn_opt == XN_FLAG_FN_LN) {

   490 					fld_len = FN_WIDTH_LN;

   491 					objbuf = OBJ_nid2ln(fn_nid);

   492 				} else {

   493 					fld_len = 0; /* XXX: what should this be? */

   494 					objbuf = "";

   495 				}

   496 			}

   497 			objlen = strlen(objbuf);

   498 			if(!io_ch(arg, objbuf, objlen)) return -1;

   499 			if ((objlen < fld_len) && (flags & XN_FLAG_FN_ALIGN)) {

   500 				if (!do_indent(io_ch, arg, fld_len - objlen)) return -1;

   501 				outlen += fld_len - objlen;

   502 			}

   503 			if(!io_ch(arg, sep_eq, sep_eq_len)) return -1;

   504 			outlen += objlen + sep_eq_len;

   505 		}

   506 		/* If the field name is unknown then fix up the DER dump

   507 		 * flag. We might want to limit this further so it will

   508  		 * DER dump on anything other than a few 'standard' fields.

   509 		 */

   510 		if((fn_nid == NID_undef) && (flags & XN_FLAG_DUMP_UNKNOWN_FIELDS)) 

   511 					orflags = ASN1_STRFLGS_DUMP_ALL;

   512 		else orflags = 0;

   513      

   514 		len = do_print_ex(io_ch, arg, flags | orflags, val);

   515 		if(len < 0) return -1;

   516 		outlen += len;

   517 	}

   518 	return outlen;

   519 }

   520 

   521 /* Wrappers round the main functions */

   522 

   523 EXPORT_C int X509_NAME_print_ex(BIO *out, X509_NAME *nm, int indent, unsigned long flags)

   524 {

   525 	if(flags == XN_FLAG_COMPAT)

   526 		return X509_NAME_print(out, nm, indent);

   527 	return do_name_ex(send_bio_chars, out, nm, indent, flags);

   528 }

   529 

   530 #ifndef OPENSSL_NO_FP_API

   531 EXPORT_C int X509_NAME_print_ex_fp(FILE *fp, X509_NAME *nm, int indent, unsigned long flags)

   532 {

   533 	if(flags == XN_FLAG_COMPAT)

   534 		{

   535 		BIO *btmp;

   536 		int ret;

   537 		btmp = BIO_new_fp(fp, BIO_NOCLOSE);

   538 		if(!btmp) return -1;

   539 		ret = X509_NAME_print(btmp, nm, indent);

   540 		BIO_free(btmp);

   541 		return ret;

   542 		}

   543 	return do_name_ex(send_fp_chars, fp, nm, indent, flags);

   544 }

   545 #endif

   546 

   547 EXPORT_C int ASN1_STRING_print_ex(BIO *out, ASN1_STRING *str, unsigned long flags)

   548 {

   549 	return do_print_ex(send_bio_chars, out, flags, str);

   550 }

   551 

   552 #ifndef OPENSSL_NO_FP_API

   553 EXPORT_C int ASN1_STRING_print_ex_fp(FILE *fp, ASN1_STRING *str, unsigned long flags)

   554 {

   555 	return do_print_ex(send_fp_chars, fp, flags, str);

   556 }

   557 #endif

   558 

   559 /* Utility function: convert any string type to UTF8, returns number of bytes

   560  * in output string or a negative error code

   561  */

   562 

   563 EXPORT_C int ASN1_STRING_to_UTF8(unsigned char **out, ASN1_STRING *in)

   564 {

   565 	ASN1_STRING stmp, *str = &stmp;

   566 	int mbflag, type, ret;

   567 	if(!in) return -1;

   568 	type = in->type;

   569 	if((type < 0) || (type > 30)) return -1;

   570 	mbflag = tag2nbyte[type];

   571 	if(mbflag == -1) return -1;

   572 	mbflag |= MBSTRING_FLAG;

   573 	stmp.data = NULL;

   574 	ret = ASN1_mbstring_copy(&str, in->data, in->length, mbflag, B_ASN1_UTF8STRING);

   575 	if(ret < 0) return ret;

   576 	*out = stmp.data;

   577 	return stmp.length;

   578 }