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authorcvs2svn <admin@example.com>2015-08-02 21:54:22 +0000
committercvs2svn <admin@example.com>2015-08-02 21:54:22 +0000
commited3760bf4be4a96a89233fb8f8b84a0d44725862 (patch)
tree5609c82060f75c53af0a7641d9b33a88574876cd /src/lib/libcrypto/asn1/a_strex.c
parentf8b563fb5ba1524c821d37308f4e6abfc866bc3f (diff)
downloadopenbsd-OPENBSD_5_8_BASE.tar.gz
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This commit was manufactured by cvs2git to create tag 'OPENBSD_5_8_BASE'.OPENBSD_5_8_BASE
Diffstat (limited to 'src/lib/libcrypto/asn1/a_strex.c')
-rw-r--r--src/lib/libcrypto/asn1/a_strex.c646
1 files changed, 0 insertions, 646 deletions
diff --git a/src/lib/libcrypto/asn1/a_strex.c b/src/lib/libcrypto/asn1/a_strex.c
deleted file mode 100644
index f60a70d94d..0000000000
--- a/src/lib/libcrypto/asn1/a_strex.c
+++ /dev/null
@@ -1,646 +0,0 @@
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 */
87static int
88send_bio_chars(void *arg, const void *buf, int len)
89{
90 if (!arg)
91 return 1;
92 if (BIO_write(arg, buf, len) != len)
93 return 0;
94 return 1;
95}
96
97static int
98send_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
107typedef 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
116static int
117do_esc_char(unsigned long c, unsigned char flags, char *do_quotes,
118 char_io *io_ch, void *arg)
119{
120 unsigned char chflgs, chtmp;
121 char tmphex[sizeof(long) * 2 + 3];
122
123 if (c > 0xffffffffL)
124 return -1;
125 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 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 chtmp = (unsigned char)c;
138 if (chtmp > 0x7f)
139 chflgs = flags & ASN1_STRFLGS_ESC_MSB;
140 else
141 chflgs = char_type[chtmp] & flags;
142 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 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 if (chtmp == '\\' && flags & ESC_FLAGS) {
167 if (!io_ch(arg, "\\\\", 2))
168 return -1;
169 return 2;
170 }
171 if (!io_ch(arg, &chtmp, 1))
172 return -1;
173 return 1;
174}
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
184static int
185do_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 unsigned long c;
191
192 p = buf;
193 q = buf + buflen;
194 outlen = 0;
195 while (p != q) {
196 if (p == buf && flags & ASN1_STRFLGS_ESC_2253)
197 orflags = CHARTYPE_FIRST_ESC_2253;
198 else
199 orflags = 0;
200 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 c = *p++;
219 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 if (p == q && flags & ASN1_STRFLGS_ESC_2253)
231 orflags = CHARTYPE_LAST_ESC_2253;
232 if (type & BUF_TYPE_CONVUTF8) {
233 unsigned char utfbuf[6];
234 int utflen;
235
236 utflen = UTF8_putc(utfbuf, sizeof utfbuf, c);
237 if (utflen < 0)
238 return -1;
239 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 len = do_esc_char(utfbuf[i],
246 (unsigned char)(flags | orflags), quotes,
247 io_ch, arg);
248 if (len < 0)
249 return -1;
250 outlen += len;
251 }
252 } else {
253 len = do_esc_char(c, (unsigned char)(flags | orflags),
254 quotes, io_ch, arg);
255 if (len < 0)
256 return -1;
257 outlen += len;
258 }
259 }
260 return outlen;
261}
262
263/* This function hex dumps a buffer of characters */
264
265static int
266do_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
291static int
292do_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
330static 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
348static int
349do_print_ex(char_io *io_ch, void *arg, unsigned long lflags, ASN1_STRING *str)
350{
351 int outlen, len;
352 int type;
353 char quotes;
354 unsigned char flags;
355
356 quotes = 0;
357 /* Keep a copy of escape flags */
358 flags = (unsigned char)(lflags & ESC_FLAGS);
359 type = str->type;
360 outlen = 0;
361
362 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 if (lflags & ASN1_STRFLGS_DUMP_ALL)
375 type = -1;
376 /* Ignore the string type */
377 else if (lflags & ASN1_STRFLGS_IGNORE_TYPE)
378 type = 1;
379 else {
380 /* Else determine width based on type */
381 if ((type > 0) && (type < 31))
382 type = tag2nbyte[type];
383 else
384 type = -1;
385 if ((type == -1) && !(lflags & ASN1_STRFLGS_DUMP_UNKNOWN))
386 type = 1;
387 }
388
389 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 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 if (!type)
404 type = 1;
405 else
406 type |= BUF_TYPE_CONVUTF8;
407 }
408
409 len = do_buf(str->data, str->length, type, flags, &quotes, io_ch, NULL);
410 if (len < 0)
411 return -1;
412 outlen += len;
413 if (quotes)
414 outlen += 2;
415 if (!arg)
416 return outlen;
417 if (quotes && !io_ch(arg, "\"", 1))
418 return -1;
419 if (do_buf(str->data, str->length, type, flags, NULL, io_ch, arg) < 0)
420 return -1;
421 if (quotes && !io_ch(arg, "\"", 1))
422 return -1;
423 return outlen;
424}
425
426/* Used for line indenting: print 'indent' spaces */
427
428static int
429do_indent(char_io *io_ch, void *arg, int indent)
430{
431 int i;
432 for (i = 0; i < indent; i++)
433 if (!io_ch(arg, " ", 1))
434 return 0;
435 return 1;
436}
437
438#define FN_WIDTH_LN 25
439#define FN_WIDTH_SN 10
440
441static int
442do_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 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 if (indent < 0)
457 indent = 0;
458 outlen = indent;
459 if (!do_indent(io_ch, arg, indent))
460 return -1;
461
462 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 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 if (flags & XN_FLAG_SPC_EQ) {
499 sep_eq = " = ";
500 sep_eq_len = 3;
501 } else {
502 sep_eq = "=";
503 sep_eq_len = 1;
504 }
505
506 fn_opt = flags & XN_FLAG_FN_MASK;
507
508 cnt = X509_NAME_entry_count(n);
509 for (i = 0; i < cnt; i++) {
510 if (flags & XN_FLAG_DN_REV)
511 ent = X509_NAME_get_entry(n, cnt - i - 1);
512 else
513 ent = X509_NAME_get_entry(n, i);
514 if (prev != -1) {
515 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 if (!io_ch(arg, sep_dn, sep_dn_len))
521 return -1;
522 outlen += sep_dn_len;
523 if (!do_indent(io_ch, arg, indent))
524 return -1;
525 outlen += indent;
526 }
527 }
528 prev = ent->set;
529 fn = X509_NAME_ENTRY_get_object(ent);
530 val = X509_NAME_ENTRY_get_data(ent);
531 fn_nid = OBJ_obj2nid(fn);
532 if (fn_opt != XN_FLAG_FN_NONE) {
533 int objlen, fld_len;
534 if ((fn_opt == XN_FLAG_FN_OID) ||
535 (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 if (fn_opt == XN_FLAG_FN_SN) {
541 fld_len = FN_WIDTH_SN;
542 objbuf = OBJ_nid2sn(fn_nid);
543 } 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 objlen = strlen(objbuf);
552 if (!io_ch(arg, objbuf, objlen))
553 return -1;
554 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 if (!io_ch(arg, sep_eq, sep_eq_len))
560 return -1;
561 outlen += objlen + sep_eq_len;
562 }
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 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 len = do_print_ex(io_ch, arg, flags | orflags, val);
574 if (len < 0)
575 return -1;
576 outlen += len;
577 }
578 return outlen;
579}
580
581/* Wrappers round the main functions */
582
583int
584X509_NAME_print_ex(BIO *out, X509_NAME *nm, int indent, unsigned long flags)
585{
586 if (flags == XN_FLAG_COMPAT)
587 return X509_NAME_print(out, nm, indent);
588 return do_name_ex(send_bio_chars, out, nm, indent, flags);
589}
590
591int
592X509_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
607int
608ASN1_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
613int
614ASN1_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
623int
624ASN1_STRING_to_UTF8(unsigned char **out, ASN1_STRING *in)
625{
626 ASN1_STRING stmp, *str = &stmp;
627 int mbflag, type, ret;
628
629 if (!in)
630 return -1;
631 type = in->type;
632 if ((type < 0) || (type > 30))
633 return -1;
634 mbflag = tag2nbyte[type];
635 if (mbflag == -1)
636 return -1;
637 mbflag |= MBSTRING_FLAG;
638 stmp.data = NULL;
639 stmp.length = 0;
640 ret = ASN1_mbstring_copy(&str, in->data, in->length, mbflag,
641 B_ASN1_UTF8STRING);
642 if (ret < 0)
643 return ret;
644 *out = stmp.data;
645 return stmp.length;
646}
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