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authorcvs2svn <admin@example.com>2025-04-14 17:32:06 +0000
committercvs2svn <admin@example.com>2025-04-14 17:32:06 +0000
commiteb8dd9dca1228af0cd132f515509051ecfabf6f6 (patch)
treeedb6da6af7e865d488dc1a29309f1e1ec226e603 /src/lib/libcrypto/asn1/a_strex.c
parent247f0352e0ed72a4f476db9dc91f4d982bc83eb2 (diff)
downloadopenbsd-tb_20250414.tar.gz
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openbsd-tb_20250414.zip
This commit was manufactured by cvs2git to create tag 'tb_20250414'.tb_20250414
Diffstat (limited to 'src/lib/libcrypto/asn1/a_strex.c')
-rw-r--r--src/lib/libcrypto/asn1/a_strex.c658
1 files changed, 0 insertions, 658 deletions
diff --git a/src/lib/libcrypto/asn1/a_strex.c b/src/lib/libcrypto/asn1/a_strex.c
deleted file mode 100644
index 52e1b7db5d..0000000000
--- a/src/lib/libcrypto/asn1/a_strex.c
+++ /dev/null
@@ -1,658 +0,0 @@
1/* $OpenBSD: a_strex.c,v 1.38 2025/03/19 11:18:38 tb 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 <stdint.h>
60#include <stdio.h>
61#include <stdlib.h>
62#include <string.h>
63
64#include <openssl/asn1.h>
65#include <openssl/bio.h>
66#include <openssl/objects.h>
67#include <openssl/x509.h>
68
69#include "asn1_local.h"
70#include "bytestring.h"
71#include "x509_local.h"
72
73#include "charmap.h"
74
75/* ASN1_STRING_print_ex() and X509_NAME_print_ex().
76 * Enhanced string and name printing routines handling
77 * multibyte characters, RFC2253 and a host of other
78 * options.
79 */
80
81#define CHARTYPE_BS_ESC (ASN1_STRFLGS_ESC_2253 | CHARTYPE_FIRST_ESC_2253 | CHARTYPE_LAST_ESC_2253)
82
83#define ESC_FLAGS (ASN1_STRFLGS_ESC_2253 | \
84 ASN1_STRFLGS_ESC_QUOTE | \
85 ASN1_STRFLGS_ESC_CTRL | \
86 ASN1_STRFLGS_ESC_MSB)
87
88
89/* Three IO functions for sending data to memory, a BIO and
90 * and a FILE pointer.
91 */
92static int
93send_bio_chars(void *arg, const void *buf, int len)
94{
95 if (!arg)
96 return 1;
97 if (BIO_write(arg, buf, len) != len)
98 return 0;
99 return 1;
100}
101
102static int
103send_fp_chars(void *arg, const void *buf, int len)
104{
105 if (!arg)
106 return 1;
107 if (fwrite(buf, 1, (size_t)len, arg) != (size_t)len)
108 return 0;
109 return 1;
110}
111
112typedef int char_io(void *arg, const void *buf, int len);
113
114/* This function handles display of
115 * strings, one character at a time.
116 * It is passed an unsigned long for each
117 * character because it could come from 2 or even
118 * 4 byte forms.
119 */
120
121static int
122do_esc_char(unsigned long c, unsigned char flags, char *do_quotes,
123 char_io *io_ch, void *arg)
124{
125 unsigned char chflgs, chtmp;
126 char tmphex[sizeof(long) * 2 + 3];
127
128 if (c > 0xffffffffL)
129 return -1;
130 if (c > 0xffff) {
131 snprintf(tmphex, sizeof tmphex, "\\W%08lX", c);
132 if (!io_ch(arg, tmphex, 10))
133 return -1;
134 return 10;
135 }
136 if (c > 0xff) {
137 snprintf(tmphex, sizeof tmphex, "\\U%04lX", c);
138 if (!io_ch(arg, tmphex, 6))
139 return -1;
140 return 6;
141 }
142 chtmp = (unsigned char)c;
143 if (chtmp > 0x7f)
144 chflgs = flags & ASN1_STRFLGS_ESC_MSB;
145 else
146 chflgs = char_type[chtmp] & flags;
147 if (chflgs & CHARTYPE_BS_ESC) {
148 /* If we don't escape with quotes, signal we need quotes */
149 if (chflgs & ASN1_STRFLGS_ESC_QUOTE) {
150 if (do_quotes)
151 *do_quotes = 1;
152 if (!io_ch(arg, &chtmp, 1))
153 return -1;
154 return 1;
155 }
156 if (!io_ch(arg, "\\", 1))
157 return -1;
158 if (!io_ch(arg, &chtmp, 1))
159 return -1;
160 return 2;
161 }
162 if (chflgs & (ASN1_STRFLGS_ESC_CTRL|ASN1_STRFLGS_ESC_MSB)) {
163 snprintf(tmphex, sizeof tmphex, "\\%02X", chtmp);
164 if (!io_ch(arg, tmphex, 3))
165 return -1;
166 return 3;
167 }
168 /* If we get this far and do any escaping at all must escape
169 * the escape character itself: backslash.
170 */
171 if (chtmp == '\\' && flags & ESC_FLAGS) {
172 if (!io_ch(arg, "\\\\", 2))
173 return -1;
174 return 2;
175 }
176 if (!io_ch(arg, &chtmp, 1))
177 return -1;
178 return 1;
179}
180
181#define BUF_TYPE_WIDTH_MASK 0x7
182#define BUF_TYPE_CONVUTF8 0x8
183
184/* This function sends each character in a buffer to
185 * do_esc_char(). It interprets the content formats
186 * and converts to or from UTF8 as appropriate.
187 */
188
189static int
190do_buf(unsigned char *buf, int buflen, int type, unsigned char flags,
191 char *quotes, char_io *io_ch, void *arg)
192{
193 int i, outlen, len;
194 unsigned char orflags, *p, *q;
195 unsigned long c;
196
197 p = buf;
198 q = buf + buflen;
199 outlen = 0;
200 while (p != q) {
201 if (p == buf && flags & ASN1_STRFLGS_ESC_2253)
202 orflags = CHARTYPE_FIRST_ESC_2253;
203 else
204 orflags = 0;
205 switch (type & BUF_TYPE_WIDTH_MASK) {
206 case 4:
207 c = ((unsigned long)*p++) << 24;
208 c |= ((unsigned long)*p++) << 16;
209 c |= ((unsigned long)*p++) << 8;
210 c |= *p++;
211 if (c > UNICODE_MAX || UNICODE_IS_SURROGATE(c))
212 return -1;
213 break;
214
215 case 2:
216 c = ((unsigned long)*p++) << 8;
217 c |= *p++;
218 if (UNICODE_IS_SURROGATE(c))
219 return -1;
220 break;
221
222 case 1:
223 c = *p++;
224 break;
225
226 case 0:
227 i = UTF8_getc(p, q - p, &c);
228 if (i < 0)
229 return -1; /* Invalid UTF8String */
230 p += i;
231 break;
232 default:
233 return -1; /* invalid width */
234 }
235 if (p == q && flags & ASN1_STRFLGS_ESC_2253)
236 orflags = CHARTYPE_LAST_ESC_2253;
237 if (type & BUF_TYPE_CONVUTF8) {
238 unsigned char utfbuf[6];
239 int utflen;
240
241 utflen = UTF8_putc(utfbuf, sizeof utfbuf, c);
242 if (utflen < 0)
243 return -1;
244 for (i = 0; i < utflen; i++) {
245 /* We don't need to worry about setting orflags correctly
246 * because if utflen==1 its value will be correct anyway
247 * otherwise each character will be > 0x7f and so the
248 * character will never be escaped on first and last.
249 */
250 len = do_esc_char(utfbuf[i],
251 (unsigned char)(flags | orflags), quotes,
252 io_ch, arg);
253 if (len < 0)
254 return -1;
255 outlen += len;
256 }
257 } else {
258 len = do_esc_char(c, (unsigned char)(flags | orflags),
259 quotes, io_ch, arg);
260 if (len < 0)
261 return -1;
262 outlen += len;
263 }
264 }
265 return outlen;
266}
267
268/* This function hex dumps a buffer of characters */
269
270static int
271do_hex_dump(char_io *io_ch, void *arg, unsigned char *buf, int buflen)
272{
273 static const char hexdig[] = "0123456789ABCDEF";
274 unsigned char *p, *q;
275 char hextmp[2];
276 if (arg) {
277 p = buf;
278 q = buf + buflen;
279 while (p != q) {
280 hextmp[0] = hexdig[*p >> 4];
281 hextmp[1] = hexdig[*p & 0xf];
282 if (!io_ch(arg, hextmp, 2))
283 return -1;
284 p++;
285 }
286 }
287 return buflen << 1;
288}
289
290/* "dump" a string. This is done when the type is unknown,
291 * or the flags request it. We can either dump the content
292 * octets or the entire DER encoding. This uses the RFC2253
293 * #01234 format.
294 */
295
296static int
297do_dump(unsigned long lflags, char_io *io_ch, void *arg, const ASN1_STRING *str)
298{
299 /* Placing the ASN1_STRING in a temp ASN1_TYPE allows
300 * the DER encoding to readily obtained
301 */
302 ASN1_TYPE t;
303 unsigned char *der_buf, *p;
304 int outlen, der_len;
305
306 if (!io_ch(arg, "#", 1))
307 return -1;
308 /* If we don't dump DER encoding just dump content octets */
309 if (!(lflags & ASN1_STRFLGS_DUMP_DER)) {
310 outlen = do_hex_dump(io_ch, arg, str->data, str->length);
311 if (outlen < 0)
312 return -1;
313 return outlen + 1;
314 }
315 t.type = str->type;
316 t.value.ptr = (char *)str;
317 der_len = i2d_ASN1_TYPE(&t, NULL);
318 der_buf = malloc(der_len);
319 if (!der_buf)
320 return -1;
321 p = der_buf;
322 i2d_ASN1_TYPE(&t, &p);
323 outlen = do_hex_dump(io_ch, arg, der_buf, der_len);
324 free(der_buf);
325 if (outlen < 0)
326 return -1;
327 return outlen + 1;
328}
329
330/* This is the main function, print out an
331 * ASN1_STRING taking note of various escape
332 * and display options. Returns number of
333 * characters written or -1 if an error
334 * occurred.
335 */
336
337static int
338do_print_ex(char_io *io_ch, void *arg, unsigned long lflags,
339 const ASN1_STRING *str)
340{
341 int outlen, len;
342 int type;
343 char quotes;
344 unsigned char flags;
345
346 quotes = 0;
347 /* Keep a copy of escape flags */
348 flags = (unsigned char)(lflags & ESC_FLAGS);
349 type = str->type;
350 outlen = 0;
351
352 if (lflags & ASN1_STRFLGS_SHOW_TYPE) {
353 const char *tagname;
354 tagname = ASN1_tag2str(type);
355 outlen += strlen(tagname);
356 if (!io_ch(arg, tagname, outlen) || !io_ch(arg, ":", 1))
357 return -1;
358 outlen++;
359 }
360
361 /* Decide what to do with type, either dump content or display it */
362
363 if (lflags & ASN1_STRFLGS_DUMP_ALL) {
364 /* Dump everything. */
365 type = -1;
366 } else if (lflags & ASN1_STRFLGS_IGNORE_TYPE) {
367 /* Ignore the string type. */
368 type = 1;
369 } else {
370 /* Else determine width based on type. */
371 type = asn1_tag2charwidth(type);
372 if (type == -1 && !(lflags & ASN1_STRFLGS_DUMP_UNKNOWN))
373 type = 1;
374 }
375
376 if (type == -1) {
377 len = do_dump(lflags, io_ch, arg, str);
378 if (len < 0)
379 return -1;
380 outlen += len;
381 return outlen;
382 }
383
384 if (lflags & ASN1_STRFLGS_UTF8_CONVERT) {
385 /* Note: if string is UTF8 and we want
386 * to convert to UTF8 then we just interpret
387 * it as 1 byte per character to avoid converting
388 * twice.
389 */
390 if (!type)
391 type = 1;
392 else
393 type |= BUF_TYPE_CONVUTF8;
394 }
395
396 len = do_buf(str->data, str->length, type, flags, &quotes, io_ch, NULL);
397 if (len < 0)
398 return -1;
399 outlen += len;
400 if (quotes)
401 outlen += 2;
402 if (!arg)
403 return outlen;
404 if (quotes && !io_ch(arg, "\"", 1))
405 return -1;
406 if (do_buf(str->data, str->length, type, flags, NULL, io_ch, arg) < 0)
407 return -1;
408 if (quotes && !io_ch(arg, "\"", 1))
409 return -1;
410 return outlen;
411}
412
413/* Used for line indenting: print 'indent' spaces */
414
415static int
416do_indent(char_io *io_ch, void *arg, int indent)
417{
418 int i;
419 for (i = 0; i < indent; i++)
420 if (!io_ch(arg, " ", 1))
421 return 0;
422 return 1;
423}
424
425#define FN_WIDTH_LN 25
426#define FN_WIDTH_SN 10
427
428static int
429do_name_ex(char_io *io_ch, void *arg, const X509_NAME *n, int indent,
430 unsigned long flags)
431{
432 int i, prev = -1, orflags, cnt;
433 int fn_opt, fn_nid;
434 ASN1_OBJECT *fn;
435 ASN1_STRING *val;
436 X509_NAME_ENTRY *ent;
437 char objtmp[80];
438 const char *objbuf;
439 int outlen, len;
440 char *sep_dn, *sep_mv, *sep_eq;
441 int sep_dn_len, sep_mv_len, sep_eq_len;
442
443 if (indent < 0)
444 indent = 0;
445 outlen = indent;
446 if (!do_indent(io_ch, arg, indent))
447 return -1;
448
449 switch (flags & XN_FLAG_SEP_MASK) {
450 case XN_FLAG_SEP_MULTILINE:
451 sep_dn = "\n";
452 sep_dn_len = 1;
453 sep_mv = " + ";
454 sep_mv_len = 3;
455 break;
456
457 case XN_FLAG_SEP_COMMA_PLUS:
458 sep_dn = ",";
459 sep_dn_len = 1;
460 sep_mv = "+";
461 sep_mv_len = 1;
462 indent = 0;
463 break;
464
465 case XN_FLAG_SEP_CPLUS_SPC:
466 sep_dn = ", ";
467 sep_dn_len = 2;
468 sep_mv = " + ";
469 sep_mv_len = 3;
470 indent = 0;
471 break;
472
473 case XN_FLAG_SEP_SPLUS_SPC:
474 sep_dn = "; ";
475 sep_dn_len = 2;
476 sep_mv = " + ";
477 sep_mv_len = 3;
478 indent = 0;
479 break;
480
481 default:
482 return -1;
483 }
484
485 if (flags & XN_FLAG_SPC_EQ) {
486 sep_eq = " = ";
487 sep_eq_len = 3;
488 } else {
489 sep_eq = "=";
490 sep_eq_len = 1;
491 }
492
493 fn_opt = flags & XN_FLAG_FN_MASK;
494
495 cnt = X509_NAME_entry_count(n);
496 for (i = 0; i < cnt; i++) {
497 if (flags & XN_FLAG_DN_REV)
498 ent = X509_NAME_get_entry(n, cnt - i - 1);
499 else
500 ent = X509_NAME_get_entry(n, i);
501 if (prev != -1) {
502 if (prev == X509_NAME_ENTRY_set(ent)) {
503 if (!io_ch(arg, sep_mv, sep_mv_len))
504 return -1;
505 outlen += sep_mv_len;
506 } else {
507 if (!io_ch(arg, sep_dn, sep_dn_len))
508 return -1;
509 outlen += sep_dn_len;
510 if (!do_indent(io_ch, arg, indent))
511 return -1;
512 outlen += indent;
513 }
514 }
515 prev = X509_NAME_ENTRY_set(ent);
516 fn = X509_NAME_ENTRY_get_object(ent);
517 val = X509_NAME_ENTRY_get_data(ent);
518 fn_nid = OBJ_obj2nid(fn);
519 if (fn_opt != XN_FLAG_FN_NONE) {
520 int objlen, fld_len;
521 if ((fn_opt == XN_FLAG_FN_OID) ||
522 (fn_nid == NID_undef)) {
523 OBJ_obj2txt(objtmp, sizeof objtmp, fn, 1);
524 fld_len = 0; /* XXX: what should this be? */
525 objbuf = objtmp;
526 } else {
527 if (fn_opt == XN_FLAG_FN_SN) {
528 fld_len = FN_WIDTH_SN;
529 objbuf = OBJ_nid2sn(fn_nid);
530 } else if (fn_opt == XN_FLAG_FN_LN) {
531 fld_len = FN_WIDTH_LN;
532 objbuf = OBJ_nid2ln(fn_nid);
533 } else {
534 fld_len = 0; /* XXX: what should this be? */
535 objbuf = "";
536 }
537 }
538 objlen = strlen(objbuf);
539 if (!io_ch(arg, objbuf, objlen))
540 return -1;
541 if ((objlen < fld_len) && (flags & XN_FLAG_FN_ALIGN)) {
542 if (!do_indent(io_ch, arg, fld_len - objlen))
543 return -1;
544 outlen += fld_len - objlen;
545 }
546 if (!io_ch(arg, sep_eq, sep_eq_len))
547 return -1;
548 outlen += objlen + sep_eq_len;
549 }
550 /* If the field name is unknown then fix up the DER dump
551 * flag. We might want to limit this further so it will
552 * DER dump on anything other than a few 'standard' fields.
553 */
554 if ((fn_nid == NID_undef) &&
555 (flags & XN_FLAG_DUMP_UNKNOWN_FIELDS))
556 orflags = ASN1_STRFLGS_DUMP_ALL;
557 else
558 orflags = 0;
559
560 len = do_print_ex(io_ch, arg, flags | orflags, val);
561 if (len < 0)
562 return -1;
563 outlen += len;
564 }
565 return outlen;
566}
567
568static int
569X509_NAME_print(BIO *bio, const X509_NAME *name, int obase)
570{
571 CBB cbb;
572 uint8_t *buf = NULL;
573 size_t buf_len;
574 const X509_NAME_ENTRY *ne;
575 int i;
576 int started = 0;
577 int ret = 0;
578
579 if (!CBB_init(&cbb, 0))
580 goto err;
581
582 for (i = 0; i < sk_X509_NAME_ENTRY_num(name->entries); i++) {
583 ne = sk_X509_NAME_ENTRY_value(name->entries, i);
584
585 if (started) {
586 if (!CBB_add_u8(&cbb, ','))
587 goto err;
588 if (!CBB_add_u8(&cbb, ' '))
589 goto err;
590 }
591
592 if (!X509_NAME_ENTRY_add_cbb(&cbb, ne))
593 goto err;
594
595 started = 1;
596 }
597
598 if (!CBB_add_u8(&cbb, '\0'))
599 goto err;
600
601 if (!CBB_finish(&cbb, &buf, &buf_len))
602 goto err;
603
604 if (BIO_printf(bio, "%s", buf) < 0)
605 goto err;
606
607 ret = 1;
608
609 err:
610 CBB_cleanup(&cbb);
611 free(buf);
612
613 return ret;
614}
615
616/* Wrappers round the main functions */
617
618int
619X509_NAME_print_ex(BIO *out, const X509_NAME *nm, int indent,
620 unsigned long flags)
621{
622 if (flags == XN_FLAG_COMPAT)
623 return X509_NAME_print(out, nm, indent);
624 return do_name_ex(send_bio_chars, out, nm, indent, flags);
625}
626LCRYPTO_ALIAS(X509_NAME_print_ex);
627
628int
629X509_NAME_print_ex_fp(FILE *fp, const X509_NAME *nm, int indent,
630 unsigned long flags)
631{
632 if (flags == XN_FLAG_COMPAT) {
633 BIO *btmp;
634 int ret;
635 btmp = BIO_new_fp(fp, BIO_NOCLOSE);
636 if (!btmp)
637 return -1;
638 ret = X509_NAME_print(btmp, nm, indent);
639 BIO_free(btmp);
640 return ret;
641 }
642 return do_name_ex(send_fp_chars, fp, nm, indent, flags);
643}
644LCRYPTO_ALIAS(X509_NAME_print_ex_fp);
645
646int
647ASN1_STRING_print_ex(BIO *out, const ASN1_STRING *str, unsigned long flags)
648{
649 return do_print_ex(send_bio_chars, out, flags, str);
650}
651LCRYPTO_ALIAS(ASN1_STRING_print_ex);
652
653int
654ASN1_STRING_print_ex_fp(FILE *fp, const ASN1_STRING *str, unsigned long flags)
655{
656 return do_print_ex(send_fp_chars, fp, flags, str);
657}
658LCRYPTO_ALIAS(ASN1_STRING_print_ex_fp);
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-05-06 20:12:07 +0000