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getconf: don't include xpg4 bits, gcc7 includes xpg6 bits for us
[unleashed.git] / lib / libcrypto / asn1 / tasn_prn.c
blob7cccd56a16c5fab2fc61b55366c42cd886d31fbe
1 /* $OpenBSD: tasn_prn.c,v 1.16 2017/01/29 17:49:22 beck Exp $ */
2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3 * project 2000.
4 */
5 /* ====================================================================
6 * Copyright (c) 2000,2005 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 <stddef.h>
60
61 #include <openssl/asn1.h>
62 #include <openssl/asn1t.h>
63 #include <openssl/buffer.h>
64 #include <openssl/err.h>
65 #include <openssl/objects.h>
66 #include <openssl/x509v3.h>
67
68 #include "asn1_locl.h"
69
70 /* Print routines.
71 */
72
73 /* ASN1_PCTX routines */
74
75 ASN1_PCTX default_pctx = {
76 ASN1_PCTX_FLAGS_SHOW_ABSENT, /* flags */
77 0, /* nm_flags */
78 0, /* cert_flags */
79 0, /* oid_flags */
80 0 /* str_flags */
81 };
82
83
84 ASN1_PCTX *
85 ASN1_PCTX_new(void)
86 {
87 ASN1_PCTX *ret;
88 ret = malloc(sizeof(ASN1_PCTX));
89 if (ret == NULL) {
90 ASN1error(ERR_R_MALLOC_FAILURE);
91 return NULL;
92 }
93 ret->flags = 0;
94 ret->nm_flags = 0;
95 ret->cert_flags = 0;
96 ret->oid_flags = 0;
97 ret->str_flags = 0;
98 return ret;
99 }
100
101 void
102 ASN1_PCTX_free(ASN1_PCTX *p)
103 {
104 free(p);
105 }
106
107 unsigned long
108 ASN1_PCTX_get_flags(ASN1_PCTX *p)
109 {
110 return p->flags;
111 }
112
113 void
114 ASN1_PCTX_set_flags(ASN1_PCTX *p, unsigned long flags)
115 {
116 p->flags = flags;
117 }
118
119 unsigned long
120 ASN1_PCTX_get_nm_flags(ASN1_PCTX *p)
121 {
122 return p->nm_flags;
123 }
124
125 void
126 ASN1_PCTX_set_nm_flags(ASN1_PCTX *p, unsigned long flags)
127 {
128 p->nm_flags = flags;
129 }
130
131 unsigned long
132 ASN1_PCTX_get_cert_flags(ASN1_PCTX *p)
133 {
134 return p->cert_flags;
135 }
136
137 void
138 ASN1_PCTX_set_cert_flags(ASN1_PCTX *p, unsigned long flags)
139 {
140 p->cert_flags = flags;
141 }
142
143 unsigned long
144 ASN1_PCTX_get_oid_flags(ASN1_PCTX *p)
145 {
146 return p->oid_flags;
147 }
148
149 void
150 ASN1_PCTX_set_oid_flags(ASN1_PCTX *p, unsigned long flags)
151 {
152 p->oid_flags = flags;
153 }
154
155 unsigned long
156 ASN1_PCTX_get_str_flags(ASN1_PCTX *p)
157 {
158 return p->str_flags;
159 }
160
161 void
162 ASN1_PCTX_set_str_flags(ASN1_PCTX *p, unsigned long flags)
163 {
164 p->str_flags = flags;
165 }
166
167 /* Main print routines */
168
169 static int asn1_item_print_ctx(BIO *out, ASN1_VALUE **fld, int indent,
170 const ASN1_ITEM *it, const char *fname, const char *sname, int nohdr,
171 const ASN1_PCTX *pctx);
172
173 int asn1_template_print_ctx(BIO *out, ASN1_VALUE **fld, int indent,
174 const ASN1_TEMPLATE *tt, const ASN1_PCTX *pctx);
175
176 static int asn1_primitive_print(BIO *out, ASN1_VALUE **fld,
177 const ASN1_ITEM *it, int indent, const char *fname, const char *sname,
178 const ASN1_PCTX *pctx);
179
180 static int asn1_print_fsname(BIO *out, int indent, const char *fname,
181 const char *sname, const ASN1_PCTX *pctx);
182
183 int
184 ASN1_item_print(BIO *out, ASN1_VALUE *ifld, int indent, const ASN1_ITEM *it,
185 const ASN1_PCTX *pctx)
186 {
187 const char *sname;
188
189 if (pctx == NULL)
190 pctx = &default_pctx;
191 if (pctx->flags & ASN1_PCTX_FLAGS_NO_STRUCT_NAME)
192 sname = NULL;
193 else
194 sname = it->sname;
195 return asn1_item_print_ctx(out, &ifld, indent, it, NULL, sname,
196 0, pctx);
197 }
198
199 static int
200 asn1_item_print_ctx(BIO *out, ASN1_VALUE **fld, int indent, const ASN1_ITEM *it,
201 const char *fname, const char *sname, int nohdr, const ASN1_PCTX *pctx)
202 {
203 const ASN1_TEMPLATE *tt;
204 const ASN1_EXTERN_FUNCS *ef;
205 ASN1_VALUE **tmpfld;
206 const ASN1_AUX *aux = it->funcs;
207 ASN1_aux_cb *asn1_cb;
208 ASN1_PRINT_ARG parg;
209 int i;
210
211 if (aux && aux->asn1_cb) {
212 parg.out = out;
213 parg.indent = indent;
214 parg.pctx = pctx;
215 asn1_cb = aux->asn1_cb;
216 } else
217 asn1_cb = NULL;
218
219 if (*fld == NULL) {
220 if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_ABSENT) {
221 if (!nohdr &&
222 !asn1_print_fsname(out, indent, fname, sname, pctx))
223 return 0;
224 if (BIO_puts(out, "<ABSENT>\n") <= 0)
225 return 0;
226 }
227 return 1;
228 }
229
230 switch (it->itype) {
231 case ASN1_ITYPE_PRIMITIVE:
232 if (it->templates) {
233 if (!asn1_template_print_ctx(out, fld, indent,
234 it->templates, pctx))
235 return 0;
236 }
237 /* fall thru */
238 case ASN1_ITYPE_MSTRING:
239 if (!asn1_primitive_print(out, fld, it,
240 indent, fname, sname, pctx))
241 return 0;
242 break;
243
244 case ASN1_ITYPE_EXTERN:
245 if (!nohdr &&
246 !asn1_print_fsname(out, indent, fname, sname, pctx))
247 return 0;
248 /* Use new style print routine if possible */
249 ef = it->funcs;
250 if (ef && ef->asn1_ex_print) {
251 i = ef->asn1_ex_print(out, fld, indent, "", pctx);
252 if (!i)
253 return 0;
254 if ((i == 2) && (BIO_puts(out, "\n") <= 0))
255 return 0;
256 return 1;
257 } else if (sname &&
258 BIO_printf(out, ":EXTERNAL TYPE %s\n", sname) <= 0)
259 return 0;
260 break;
261
262 case ASN1_ITYPE_CHOICE:
263 /* CHOICE type, get selector */
264 i = asn1_get_choice_selector(fld, it);
265 /* This should never happen... */
266 if ((i < 0) || (i >= it->tcount)) {
267 if (BIO_printf(out,
268 "ERROR: selector [%d] invalid\n", i) <= 0)
269 return 0;
270 return 1;
271 }
272 tt = it->templates + i;
273 tmpfld = asn1_get_field_ptr(fld, tt);
274 if (!asn1_template_print_ctx(out, tmpfld, indent, tt, pctx))
275 return 0;
276 break;
277
278 case ASN1_ITYPE_SEQUENCE:
279 case ASN1_ITYPE_NDEF_SEQUENCE:
280 if (!nohdr &&
281 !asn1_print_fsname(out, indent, fname, sname, pctx))
282 return 0;
283 if (fname || sname) {
284 if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_SEQUENCE) {
285 if (BIO_puts(out, " {\n") <= 0)
286 return 0;
287 } else {
288 if (BIO_puts(out, "\n") <= 0)
289 return 0;
290 }
291 }
292
293 if (asn1_cb) {
294 i = asn1_cb(ASN1_OP_PRINT_PRE, fld, it, &parg);
295 if (i == 0)
296 return 0;
297 if (i == 2)
298 return 1;
299 }
300
301 /* Print each field entry */
302 for (i = 0, tt = it->templates; i < it->tcount; i++, tt++) {
303 const ASN1_TEMPLATE *seqtt;
304
305 seqtt = asn1_do_adb(fld, tt, 1);
306 if (seqtt == NULL)
307 return 0;
308 tmpfld = asn1_get_field_ptr(fld, seqtt);
309 if (!asn1_template_print_ctx(out, tmpfld, indent + 2,
310 seqtt, pctx))
311 return 0;
312 }
313 if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_SEQUENCE) {
314 if (BIO_printf(out, "%*s}\n", indent, "") < 0)
315 return 0;
316 }
317
318 if (asn1_cb) {
319 i = asn1_cb(ASN1_OP_PRINT_POST, fld, it, &parg);
320 if (i == 0)
321 return 0;
322 }
323 break;
324
325 default:
326 BIO_printf(out, "Unprocessed type %d\n", it->itype);
327 return 0;
328 }
329
330 return 1;
331 }
332
333 int
334 asn1_template_print_ctx(BIO *out, ASN1_VALUE **fld, int indent,
335 const ASN1_TEMPLATE *tt, const ASN1_PCTX *pctx)
336 {
337 int i, flags;
338 const char *sname, *fname;
339
340 flags = tt->flags;
341 if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_FIELD_STRUCT_NAME)
342 sname = tt->item->sname;
343 else
344 sname = NULL;
345 if (pctx->flags & ASN1_PCTX_FLAGS_NO_FIELD_NAME)
346 fname = NULL;
347 else
348 fname = tt->field_name;
349 if (flags & ASN1_TFLG_SK_MASK) {
350 char *tname;
351 ASN1_VALUE *skitem;
352 STACK_OF(ASN1_VALUE) *stack;
353
354 /* SET OF, SEQUENCE OF */
355 if (fname) {
356 if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_SSOF) {
357 if (flags & ASN1_TFLG_SET_OF)
358 tname = "SET";
359 else
360 tname = "SEQUENCE";
361 if (BIO_printf(out, "%*s%s OF %s {\n",
362 indent, "", tname, tt->field_name) <= 0)
363 return 0;
364 } else if (BIO_printf(out, "%*s%s:\n", indent, "",
365 fname) <= 0)
366 return 0;
367 }
368 stack = (STACK_OF(ASN1_VALUE) *)*fld;
369 for (i = 0; i < sk_ASN1_VALUE_num(stack); i++) {
370 if ((i > 0) && (BIO_puts(out, "\n") <= 0))
371 return 0;
372 skitem = sk_ASN1_VALUE_value(stack, i);
373 if (!asn1_item_print_ctx(out, &skitem, indent + 2,
374 tt->item, NULL, NULL, 1, pctx))
375 return 0;
376 }
377 if (!i && BIO_printf(out, "%*s<EMPTY>\n", indent + 2, "") <= 0)
378 return 0;
379 if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_SEQUENCE) {
380 if (BIO_printf(out, "%*s}\n", indent, "") <= 0)
381 return 0;
382 }
383 return 1;
384 }
385 return asn1_item_print_ctx(out, fld, indent, tt->item,
386 fname, sname, 0, pctx);
387 }
388
389 static int
390 asn1_print_fsname(BIO *out, int indent, const char *fname, const char *sname,
391 const ASN1_PCTX *pctx)
392 {
393 static char spaces[] = " ";
394 const int nspaces = sizeof(spaces) - 1;
395
396 while (indent > nspaces) {
397 if (BIO_write(out, spaces, nspaces) != nspaces)
398 return 0;
399 indent -= nspaces;
400 }
401 if (BIO_write(out, spaces, indent) != indent)
402 return 0;
403 if (pctx->flags & ASN1_PCTX_FLAGS_NO_STRUCT_NAME)
404 sname = NULL;
405 if (pctx->flags & ASN1_PCTX_FLAGS_NO_FIELD_NAME)
406 fname = NULL;
407 if (!sname && !fname)
408 return 1;
409 if (fname) {
410 if (BIO_puts(out, fname) <= 0)
411 return 0;
412 }
413 if (sname) {
414 if (fname) {
415 if (BIO_printf(out, " (%s)", sname) <= 0)
416 return 0;
417 } else {
418 if (BIO_puts(out, sname) <= 0)
419 return 0;
420 }
421 }
422 if (BIO_write(out, ": ", 2) != 2)
423 return 0;
424 return 1;
425 }
426
427 static int
428 asn1_print_boolean_ctx(BIO *out, int boolval, const ASN1_PCTX *pctx)
429 {
430 const char *str;
431 switch (boolval) {
432 case -1:
433 str = "BOOL ABSENT";
434 break;
435
436 case 0:
437 str = "FALSE";
438 break;
439
440 default:
441 str = "TRUE";
442 break;
443
444 }
445
446 if (BIO_puts(out, str) <= 0)
447 return 0;
448 return 1;
449
450 }
451
452 static int
453 asn1_print_integer_ctx(BIO *out, ASN1_INTEGER *str, const ASN1_PCTX *pctx)
454 {
455 char *s;
456 int ret = 1;
457 s = i2s_ASN1_INTEGER(NULL, str);
458 if (BIO_puts(out, s) <= 0)
459 ret = 0;
460 free(s);
461 return ret;
462 }
463
464 static int
465 asn1_print_oid_ctx(BIO *out, const ASN1_OBJECT *oid, const ASN1_PCTX *pctx)
466 {
467 char objbuf[80];
468 const char *ln;
469 ln = OBJ_nid2ln(OBJ_obj2nid(oid));
470 if (!ln)
471 ln = "";
472 OBJ_obj2txt(objbuf, sizeof objbuf, oid, 1);
473 if (BIO_printf(out, "%s (%s)", ln, objbuf) <= 0)
474 return 0;
475 return 1;
476 }
477
478 static int
479 asn1_print_obstring_ctx(BIO *out, ASN1_STRING *str, int indent,
480 const ASN1_PCTX *pctx)
481 {
482 if (str->type == V_ASN1_BIT_STRING) {
483 if (BIO_printf(out, " (%ld unused bits)\n",
484 str->flags & 0x7) <= 0)
485 return 0;
486 } else if (BIO_puts(out, "\n") <= 0)
487 return 0;
488 if ((str->length > 0) &&
489 BIO_dump_indent(out, (char *)str->data, str->length,
490 indent + 2) <= 0)
491 return 0;
492 return 1;
493 }
494
495 static int
496 asn1_primitive_print(BIO *out, ASN1_VALUE **fld, const ASN1_ITEM *it,
497 int indent, const char *fname, const char *sname, const ASN1_PCTX *pctx)
498 {
499 long utype;
500 ASN1_STRING *str;
501 int ret = 1, needlf = 1;
502 const char *pname;
503 const ASN1_PRIMITIVE_FUNCS *pf;
504
505 pf = it->funcs;
506 if (!asn1_print_fsname(out, indent, fname, sname, pctx))
507 return 0;
508 if (pf && pf->prim_print)
509 return pf->prim_print(out, fld, it, indent, pctx);
510 str = (ASN1_STRING *)*fld;
511 if (it->itype == ASN1_ITYPE_MSTRING)
512 utype = str->type & ~V_ASN1_NEG;
513 else
514 utype = it->utype;
515 if (utype == V_ASN1_ANY) {
516 ASN1_TYPE *atype = (ASN1_TYPE *)*fld;
517 utype = atype->type;
518 fld = &atype->value.asn1_value;
519 str = (ASN1_STRING *)*fld;
520 if (pctx->flags & ASN1_PCTX_FLAGS_NO_ANY_TYPE)
521 pname = NULL;
522 else
523 pname = ASN1_tag2str(utype);
524 } else {
525 if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_TYPE)
526 pname = ASN1_tag2str(utype);
527 else
528 pname = NULL;
529 }
530
531 if (utype == V_ASN1_NULL) {
532 if (BIO_puts(out, "NULL\n") <= 0)
533 return 0;
534 return 1;
535 }
536
537 if (pname) {
538 if (BIO_puts(out, pname) <= 0)
539 return 0;
540 if (BIO_puts(out, ":") <= 0)
541 return 0;
542 }
543
544 switch (utype) {
545 case V_ASN1_BOOLEAN:
546 {
547 int boolval = *(int *)fld;
548 if (boolval == -1)
549 boolval = it->size;
550 ret = asn1_print_boolean_ctx(out, boolval, pctx);
551 }
552 break;
553
554 case V_ASN1_INTEGER:
555 case V_ASN1_ENUMERATED:
556 ret = asn1_print_integer_ctx(out, str, pctx);
557 break;
558
559 case V_ASN1_UTCTIME:
560 ret = ASN1_UTCTIME_print(out, str);
561 break;
562
563 case V_ASN1_GENERALIZEDTIME:
564 ret = ASN1_GENERALIZEDTIME_print(out, str);
565 break;
566
567 case V_ASN1_OBJECT:
568 ret = asn1_print_oid_ctx(out, (const ASN1_OBJECT *)*fld, pctx);
569 break;
570
571 case V_ASN1_OCTET_STRING:
572 case V_ASN1_BIT_STRING:
573 ret = asn1_print_obstring_ctx(out, str, indent, pctx);
574 needlf = 0;
575 break;
576
577 case V_ASN1_SEQUENCE:
578 case V_ASN1_SET:
579 case V_ASN1_OTHER:
580 if (BIO_puts(out, "\n") <= 0)
581 return 0;
582 if (ASN1_parse_dump(out, str->data, str->length,
583 indent, 0) <= 0)
584 ret = 0;
585 needlf = 0;
586 break;
587
588 default:
589 ret = ASN1_STRING_print_ex(out, str, pctx->str_flags);
590 }
591 if (!ret)
592 return 0;
593 if (needlf && BIO_puts(out, "\n") <= 0)
594 return 0;
595 return 1;
596 }
Unleashed OS