summaryrefslogtreecommitdiff
path: root/src/lib/libcrypto/asn1/a_strex.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/lib/libcrypto/asn1/a_strex.c')
-rw-r--r--src/lib/libcrypto/asn1/a_strex.c567
1 files changed, 0 insertions, 567 deletions
diff --git a/src/lib/libcrypto/asn1/a_strex.c b/src/lib/libcrypto/asn1/a_strex.c
deleted file mode 100644
index 7fc14d3296..0000000000
--- a/src/lib/libcrypto/asn1/a_strex.c
+++ /dev/null
@@ -1,567 +0,0 @@
1/* a_strex.c */
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#include "cryptlib.h"
62#include <openssl/crypto.h>
63#include <openssl/x509.h>
64#include <openssl/asn1.h>
65
66#include "charmap.h"
67
68/* ASN1_STRING_print_ex() and X509_NAME_print_ex().
69 * Enhanced string and name printing routines handling
70 * multibyte characters, RFC2253 and a host of other
71 * options.
72 */
73
74
75#define CHARTYPE_BS_ESC (ASN1_STRFLGS_ESC_2253 | CHARTYPE_FIRST_ESC_2253 | CHARTYPE_LAST_ESC_2253)
76
77
78/* Three IO functions for sending data to memory, a BIO and
79 * and a FILE pointer.
80 */
81#if 0 /* never used */
82static int send_mem_chars(void *arg, const void *buf, int len)
83{
84 unsigned char **out = arg;
85 if(!out) return 1;
86 memcpy(*out, buf, len);
87 *out += len;
88 return 1;
89}
90#endif
91
92static int send_bio_chars(void *arg, const void *buf, int len)
93{
94 if(!arg) return 1;
95 if(BIO_write(arg, buf, len) != len) return 0;
96 return 1;
97}
98
99static int send_fp_chars(void *arg, const void *buf, int len)
100{
101 if(!arg) return 1;
102 if(fwrite(buf, 1, len, arg) != (unsigned int)len) return 0;
103 return 1;
104}
105
106typedef int char_io(void *arg, const void *buf, int len);
107
108/* This function handles display of
109 * strings, one character at a time.
110 * It is passed an unsigned long for each
111 * character because it could come from 2 or even
112 * 4 byte forms.
113 */
114
115static int do_esc_char(unsigned long c, unsigned char flags, char *do_quotes, char_io *io_ch, void *arg)
116{
117 unsigned char chflgs, chtmp;
118 char tmphex[HEX_SIZE(long)+3];
119
120 if(c > 0xffffffffL)
121 return -1;
122 if(c > 0xffff) {
123 BIO_snprintf(tmphex, sizeof tmphex, "\\W%08lX", c);
124 if(!io_ch(arg, tmphex, 10)) return -1;
125 return 10;
126 }
127 if(c > 0xff) {
128 BIO_snprintf(tmphex, sizeof tmphex, "\\U%04lX", c);
129 if(!io_ch(arg, tmphex, 6)) return -1;
130 return 6;
131 }
132 chtmp = (unsigned char)c;
133 if(chtmp > 0x7f) chflgs = flags & ASN1_STRFLGS_ESC_MSB;
134 else chflgs = char_type[chtmp] & flags;
135 if(chflgs & CHARTYPE_BS_ESC) {
136 /* If we don't escape with quotes, signal we need quotes */
137 if(chflgs & ASN1_STRFLGS_ESC_QUOTE) {
138 if(do_quotes) *do_quotes = 1;
139 if(!io_ch(arg, &chtmp, 1)) return -1;
140 return 1;
141 }
142 if(!io_ch(arg, "\\", 1)) return -1;
143 if(!io_ch(arg, &chtmp, 1)) return -1;
144 return 2;
145 }
146 if(chflgs & (ASN1_STRFLGS_ESC_CTRL|ASN1_STRFLGS_ESC_MSB)) {
147 BIO_snprintf(tmphex, 11, "\\%02X", chtmp);
148 if(!io_ch(arg, tmphex, 3)) return -1;
149 return 3;
150 }
151 if(!io_ch(arg, &chtmp, 1)) return -1;
152 return 1;
153}
154
155#define BUF_TYPE_WIDTH_MASK 0x7
156#define BUF_TYPE_CONVUTF8 0x8
157
158/* This function sends each character in a buffer to
159 * do_esc_char(). It interprets the content formats
160 * and converts to or from UTF8 as appropriate.
161 */
162
163static int do_buf(unsigned char *buf, int buflen,
164 int type, unsigned char flags, char *quotes, char_io *io_ch, void *arg)
165{
166 int i, outlen, len;
167 unsigned char orflags, *p, *q;
168 unsigned long c;
169 p = buf;
170 q = buf + buflen;
171 outlen = 0;
172 while(p != q) {
173 if(p == buf && flags & ASN1_STRFLGS_ESC_2253) orflags = CHARTYPE_FIRST_ESC_2253;
174 else orflags = 0;
175 switch(type & BUF_TYPE_WIDTH_MASK) {
176 case 4:
177 c = ((unsigned long)*p++) << 24;
178 c |= ((unsigned long)*p++) << 16;
179 c |= ((unsigned long)*p++) << 8;
180 c |= *p++;
181 break;
182
183 case 2:
184 c = ((unsigned long)*p++) << 8;
185 c |= *p++;
186 break;
187
188 case 1:
189 c = *p++;
190 break;
191
192 case 0:
193 i = UTF8_getc(p, buflen, &c);
194 if(i < 0) return -1; /* Invalid UTF8String */
195 p += i;
196 break;
197 default:
198 return -1; /* invalid width */
199 }
200 if (p == q && flags & ASN1_STRFLGS_ESC_2253) orflags = CHARTYPE_LAST_ESC_2253;
201 if(type & BUF_TYPE_CONVUTF8) {
202 unsigned char utfbuf[6];
203 int utflen;
204 utflen = UTF8_putc(utfbuf, sizeof utfbuf, c);
205 for(i = 0; i < utflen; i++) {
206 /* We don't need to worry about setting orflags correctly
207 * because if utflen==1 its value will be correct anyway
208 * otherwise each character will be > 0x7f and so the
209 * character will never be escaped on first and last.
210 */
211 len = do_esc_char(utfbuf[i], (unsigned char)(flags | orflags), quotes, io_ch, arg);
212 if(len < 0) return -1;
213 outlen += len;
214 }
215 } else {
216 len = do_esc_char(c, (unsigned char)(flags | orflags), quotes, io_ch, arg);
217 if(len < 0) return -1;
218 outlen += len;
219 }
220 }
221 return outlen;
222}
223
224/* This function hex dumps a buffer of characters */
225
226static int do_hex_dump(char_io *io_ch, void *arg, unsigned char *buf, int buflen)
227{
228 static const char hexdig[] = "0123456789ABCDEF";
229 unsigned char *p, *q;
230 char hextmp[2];
231 if(arg) {
232 p = buf;
233 q = buf + buflen;
234 while(p != q) {
235 hextmp[0] = hexdig[*p >> 4];
236 hextmp[1] = hexdig[*p & 0xf];
237 if(!io_ch(arg, hextmp, 2)) return -1;
238 p++;
239 }
240 }
241 return buflen << 1;
242}
243
244/* "dump" a string. This is done when the type is unknown,
245 * or the flags request it. We can either dump the content
246 * octets or the entire DER encoding. This uses the RFC2253
247 * #01234 format.
248 */
249
250static int do_dump(unsigned long lflags, char_io *io_ch, void *arg, ASN1_STRING *str)
251{
252 /* Placing the ASN1_STRING in a temp ASN1_TYPE allows
253 * the DER encoding to readily obtained
254 */
255 ASN1_TYPE t;
256 unsigned char *der_buf, *p;
257 int outlen, der_len;
258
259 if(!io_ch(arg, "#", 1)) return -1;
260 /* If we don't dump DER encoding just dump content octets */
261 if(!(lflags & ASN1_STRFLGS_DUMP_DER)) {
262 outlen = do_hex_dump(io_ch, arg, str->data, str->length);
263 if(outlen < 0) return -1;
264 return outlen + 1;
265 }
266 t.type = str->type;
267 t.value.ptr = (char *)str;
268 der_len = i2d_ASN1_TYPE(&t, NULL);
269 der_buf = OPENSSL_malloc(der_len);
270 if(!der_buf) return -1;
271 p = der_buf;
272 i2d_ASN1_TYPE(&t, &p);
273 outlen = do_hex_dump(io_ch, arg, der_buf, der_len);
274 OPENSSL_free(der_buf);
275 if(outlen < 0) return -1;
276 return outlen + 1;
277}
278
279/* Lookup table to convert tags to character widths,
280 * 0 = UTF8 encoded, -1 is used for non string types
281 * otherwise it is the number of bytes per character
282 */
283
284static const signed char tag2nbyte[] = {
285 -1, -1, -1, -1, -1, /* 0-4 */
286 -1, -1, -1, -1, -1, /* 5-9 */
287 -1, -1, 0, -1, /* 10-13 */
288 -1, -1, -1, -1, /* 15-17 */
289 -1, 1, 1, /* 18-20 */
290 -1, 1, 1, 1, /* 21-24 */
291 -1, 1, -1, /* 25-27 */
292 4, -1, 2 /* 28-30 */
293};
294
295#define ESC_FLAGS (ASN1_STRFLGS_ESC_2253 | \
296 ASN1_STRFLGS_ESC_QUOTE | \
297 ASN1_STRFLGS_ESC_CTRL | \
298 ASN1_STRFLGS_ESC_MSB)
299
300/* This is the main function, print out an
301 * ASN1_STRING taking note of various escape
302 * and display options. Returns number of
303 * characters written or -1 if an error
304 * occurred.
305 */
306
307static int do_print_ex(char_io *io_ch, void *arg, unsigned long lflags, ASN1_STRING *str)
308{
309 int outlen, len;
310 int type;
311 char quotes;
312 unsigned char flags;
313 quotes = 0;
314 /* Keep a copy of escape flags */
315 flags = (unsigned char)(lflags & ESC_FLAGS);
316
317 type = str->type;
318
319 outlen = 0;
320
321
322 if(lflags & ASN1_STRFLGS_SHOW_TYPE) {
323 const char *tagname;
324 tagname = ASN1_tag2str(type);
325 outlen += strlen(tagname);
326 if(!io_ch(arg, tagname, outlen) || !io_ch(arg, ":", 1)) return -1;
327 outlen++;
328 }
329
330 /* Decide what to do with type, either dump content or display it */
331
332 /* Dump everything */
333 if(lflags & ASN1_STRFLGS_DUMP_ALL) type = -1;
334 /* Ignore the string type */
335 else if(lflags & ASN1_STRFLGS_IGNORE_TYPE) type = 1;
336 else {
337 /* Else determine width based on type */
338 if((type > 0) && (type < 31)) type = tag2nbyte[type];
339 else type = -1;
340 if((type == -1) && !(lflags & ASN1_STRFLGS_DUMP_UNKNOWN)) type = 1;
341 }
342
343 if(type == -1) {
344 len = do_dump(lflags, io_ch, arg, str);
345 if(len < 0) return -1;
346 outlen += len;
347 return outlen;
348 }
349
350 if(lflags & ASN1_STRFLGS_UTF8_CONVERT) {
351 /* Note: if string is UTF8 and we want
352 * to convert to UTF8 then we just interpret
353 * it as 1 byte per character to avoid converting
354 * twice.
355 */
356 if(!type) type = 1;
357 else type |= BUF_TYPE_CONVUTF8;
358 }
359
360 len = do_buf(str->data, str->length, type, flags, &quotes, io_ch, NULL);
361 if(len < 0) return -1;
362 outlen += len;
363 if(quotes) outlen += 2;
364 if(!arg) return outlen;
365 if(quotes && !io_ch(arg, "\"", 1)) return -1;
366 if(do_buf(str->data, str->length, type, flags, NULL, io_ch, arg) < 0)
367 return -1;
368 if(quotes && !io_ch(arg, "\"", 1)) return -1;
369 return outlen;
370}
371
372/* Used for line indenting: print 'indent' spaces */
373
374static int do_indent(char_io *io_ch, void *arg, int indent)
375{
376 int i;
377 for(i = 0; i < indent; i++)
378 if(!io_ch(arg, " ", 1)) return 0;
379 return 1;
380}
381
382#define FN_WIDTH_LN 25
383#define FN_WIDTH_SN 10
384
385static int do_name_ex(char_io *io_ch, void *arg, X509_NAME *n,
386 int indent, unsigned long flags)
387{
388 int i, prev = -1, orflags, cnt;
389 int fn_opt, fn_nid;
390 ASN1_OBJECT *fn;
391 ASN1_STRING *val;
392 X509_NAME_ENTRY *ent;
393 char objtmp[80];
394 const char *objbuf;
395 int outlen, len;
396 char *sep_dn, *sep_mv, *sep_eq;
397 int sep_dn_len, sep_mv_len, sep_eq_len;
398 if(indent < 0) indent = 0;
399 outlen = indent;
400 if(!do_indent(io_ch, arg, indent)) return -1;
401 switch (flags & XN_FLAG_SEP_MASK)
402 {
403 case XN_FLAG_SEP_MULTILINE:
404 sep_dn = "\n";
405 sep_dn_len = 1;
406 sep_mv = " + ";
407 sep_mv_len = 3;
408 break;
409
410 case XN_FLAG_SEP_COMMA_PLUS:
411 sep_dn = ",";
412 sep_dn_len = 1;
413 sep_mv = "+";
414 sep_mv_len = 1;
415 indent = 0;
416 break;
417
418 case XN_FLAG_SEP_CPLUS_SPC:
419 sep_dn = ", ";
420 sep_dn_len = 2;
421 sep_mv = " + ";
422 sep_mv_len = 3;
423 indent = 0;
424 break;
425
426 case XN_FLAG_SEP_SPLUS_SPC:
427 sep_dn = "; ";
428 sep_dn_len = 2;
429 sep_mv = " + ";
430 sep_mv_len = 3;
431 indent = 0;
432 break;
433
434 default:
435 return -1;
436 }
437
438 if(flags & XN_FLAG_SPC_EQ) {
439 sep_eq = " = ";
440 sep_eq_len = 3;
441 } else {
442 sep_eq = "=";
443 sep_eq_len = 1;
444 }
445
446 fn_opt = flags & XN_FLAG_FN_MASK;
447
448 cnt = X509_NAME_entry_count(n);
449 for(i = 0; i < cnt; i++) {
450 if(flags & XN_FLAG_DN_REV)
451 ent = X509_NAME_get_entry(n, cnt - i - 1);
452 else ent = X509_NAME_get_entry(n, i);
453 if(prev != -1) {
454 if(prev == ent->set) {
455 if(!io_ch(arg, sep_mv, sep_mv_len)) return -1;
456 outlen += sep_mv_len;
457 } else {
458 if(!io_ch(arg, sep_dn, sep_dn_len)) return -1;
459 outlen += sep_dn_len;
460 if(!do_indent(io_ch, arg, indent)) return -1;
461 outlen += indent;
462 }
463 }
464 prev = ent->set;
465 fn = X509_NAME_ENTRY_get_object(ent);
466 val = X509_NAME_ENTRY_get_data(ent);
467 fn_nid = OBJ_obj2nid(fn);
468 if(fn_opt != XN_FLAG_FN_NONE) {
469 int objlen, fld_len;
470 if((fn_opt == XN_FLAG_FN_OID) || (fn_nid==NID_undef) ) {
471 OBJ_obj2txt(objtmp, sizeof objtmp, fn, 1);
472 fld_len = 0; /* XXX: what should this be? */
473 objbuf = objtmp;
474 } else {
475 if(fn_opt == XN_FLAG_FN_SN) {
476 fld_len = FN_WIDTH_SN;
477 objbuf = OBJ_nid2sn(fn_nid);
478 } else if(fn_opt == XN_FLAG_FN_LN) {
479 fld_len = FN_WIDTH_LN;
480 objbuf = OBJ_nid2ln(fn_nid);
481 } else {
482 fld_len = 0; /* XXX: what should this be? */
483 objbuf = "";
484 }
485 }
486 objlen = strlen(objbuf);
487 if(!io_ch(arg, objbuf, objlen)) return -1;
488 if ((objlen < fld_len) && (flags & XN_FLAG_FN_ALIGN)) {
489 if (!do_indent(io_ch, arg, fld_len - objlen)) return -1;
490 outlen += fld_len - objlen;
491 }
492 if(!io_ch(arg, sep_eq, sep_eq_len)) return -1;
493 outlen += objlen + sep_eq_len;
494 }
495 /* If the field name is unknown then fix up the DER dump
496 * flag. We might want to limit this further so it will
497 * DER dump on anything other than a few 'standard' fields.
498 */
499 if((fn_nid == NID_undef) && (flags & XN_FLAG_DUMP_UNKNOWN_FIELDS))
500 orflags = ASN1_STRFLGS_DUMP_ALL;
501 else orflags = 0;
502
503 len = do_print_ex(io_ch, arg, flags | orflags, val);
504 if(len < 0) return -1;
505 outlen += len;
506 }
507 return outlen;
508}
509
510/* Wrappers round the main functions */
511
512int X509_NAME_print_ex(BIO *out, X509_NAME *nm, int indent, unsigned long flags)
513{
514 if(flags == XN_FLAG_COMPAT)
515 return X509_NAME_print(out, nm, indent);
516 return do_name_ex(send_bio_chars, out, nm, indent, flags);
517}
518
519#ifndef OPENSSL_NO_FP_API
520int X509_NAME_print_ex_fp(FILE *fp, X509_NAME *nm, int indent, unsigned long flags)
521{
522 if(flags == XN_FLAG_COMPAT)
523 {
524 BIO *btmp;
525 int ret;
526 btmp = BIO_new_fp(fp, BIO_NOCLOSE);
527 if(!btmp) return -1;
528 ret = X509_NAME_print(btmp, nm, indent);
529 BIO_free(btmp);
530 return ret;
531 }
532 return do_name_ex(send_fp_chars, fp, nm, indent, flags);
533}
534#endif
535
536int ASN1_STRING_print_ex(BIO *out, ASN1_STRING *str, unsigned long flags)
537{
538 return do_print_ex(send_bio_chars, out, flags, str);
539}
540
541#ifndef OPENSSL_NO_FP_API
542int ASN1_STRING_print_ex_fp(FILE *fp, ASN1_STRING *str, unsigned long flags)
543{
544 return do_print_ex(send_fp_chars, fp, flags, str);
545}
546#endif
547
548/* Utility function: convert any string type to UTF8, returns number of bytes
549 * in output string or a negative error code
550 */
551
552int ASN1_STRING_to_UTF8(unsigned char **out, ASN1_STRING *in)
553{
554 ASN1_STRING stmp, *str = &stmp;
555 int mbflag, type, ret;
556 if(!in) return -1;
557 type = in->type;
558 if((type < 0) || (type > 30)) return -1;
559 mbflag = tag2nbyte[type];
560 if(mbflag == -1) return -1;
561 mbflag |= MBSTRING_FLAG;
562 stmp.data = NULL;
563 ret = ASN1_mbstring_copy(&str, in->data, in->length, mbflag, B_ASN1_UTF8STRING);
564 if(ret < 0) return ret;
565 *out = stmp.data;
566 return stmp.length;
567}
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-04-08 07:32:45 +0000