2014-04-29 00:56:43 +00:00
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/* crypto/asn1/a_object.c */
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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2016-04-10 13:18:59 +00:00
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*
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2014-04-29 00:56:43 +00:00
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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2016-04-10 13:18:59 +00:00
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*
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2014-04-29 00:56:43 +00:00
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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2016-04-10 13:18:59 +00:00
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*
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2014-04-29 00:56:43 +00:00
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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2016-04-10 13:18:59 +00:00
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* 4. If you include any Windows specific code (or a derivative thereof) from
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2014-04-29 00:56:43 +00:00
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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2016-04-10 13:18:59 +00:00
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*
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2014-04-29 00:56:43 +00:00
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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2016-04-10 13:18:59 +00:00
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*
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2014-04-29 00:56:43 +00:00
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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#include <stdio.h>
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#include <limits.h>
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#include "cryptlib.h"
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#include <openssl/buffer.h>
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#include <openssl/asn1.h>
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#include <openssl/objects.h>
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#include <openssl/bn.h>
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int i2d_ASN1_OBJECT(ASN1_OBJECT *a, unsigned char **pp)
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2016-04-10 13:18:59 +00:00
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{
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2018-11-22 15:42:44 +00:00
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unsigned char *p, *allocated = NULL;
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2016-04-10 13:18:59 +00:00
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int objsize;
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2014-04-29 00:56:43 +00:00
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2016-04-10 13:18:59 +00:00
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if ((a == NULL) || (a->data == NULL))
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return (0);
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2014-04-29 00:56:43 +00:00
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2016-04-10 13:18:59 +00:00
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objsize = ASN1_object_size(0, a->length, V_ASN1_OBJECT);
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2017-05-27 15:50:43 +00:00
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if (pp == NULL || objsize == -1)
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2016-04-10 13:18:59 +00:00
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return objsize;
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2014-04-29 00:56:43 +00:00
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2018-11-22 15:42:44 +00:00
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if (*pp == NULL) {
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if ((p = allocated = OPENSSL_malloc(objsize)) == NULL) {
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ASN1err(ASN1_F_I2D_ASN1_OBJECT, ERR_R_MALLOC_FAILURE);
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return 0;
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}
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} else {
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p = *pp;
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}
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2016-04-10 13:18:59 +00:00
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ASN1_put_object(&p, 0, a->length, V_ASN1_OBJECT, V_ASN1_UNIVERSAL);
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memcpy(p, a->data, a->length);
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2014-04-29 00:56:43 +00:00
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2018-11-22 15:42:44 +00:00
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/*
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* If a new buffer was allocated, just return it back.
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* If not, return the incremented buffer pointer.
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*/
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*pp = allocated != NULL ? allocated : p + a->length;
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return objsize;
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2016-04-10 13:18:59 +00:00
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}
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2014-04-29 00:56:43 +00:00
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int a2d_ASN1_OBJECT(unsigned char *out, int olen, const char *buf, int num)
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2016-04-10 13:18:59 +00:00
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{
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int i, first, len = 0, c, use_bn;
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char ftmp[24], *tmp = ftmp;
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2018-07-27 14:38:54 +00:00
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int tmpsize = sizeof(ftmp);
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2016-04-10 13:18:59 +00:00
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const char *p;
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unsigned long l;
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BIGNUM *bl = NULL;
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if (num == 0)
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return (0);
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else if (num == -1)
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num = strlen(buf);
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2014-04-29 00:56:43 +00:00
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2016-04-10 13:18:59 +00:00
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p = buf;
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c = *(p++);
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num--;
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if ((c >= '0') && (c <= '2')) {
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first = c - '0';
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} else {
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ASN1err(ASN1_F_A2D_ASN1_OBJECT, ASN1_R_FIRST_NUM_TOO_LARGE);
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goto err;
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}
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2014-04-29 00:56:43 +00:00
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2016-04-10 13:18:59 +00:00
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if (num <= 0) {
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ASN1err(ASN1_F_A2D_ASN1_OBJECT, ASN1_R_MISSING_SECOND_NUMBER);
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goto err;
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}
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c = *(p++);
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num--;
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for (;;) {
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if (num <= 0)
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break;
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if ((c != '.') && (c != ' ')) {
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ASN1err(ASN1_F_A2D_ASN1_OBJECT, ASN1_R_INVALID_SEPARATOR);
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goto err;
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}
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l = 0;
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use_bn = 0;
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for (;;) {
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if (num <= 0)
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break;
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num--;
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c = *(p++);
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if ((c == ' ') || (c == '.'))
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break;
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if ((c < '0') || (c > '9')) {
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ASN1err(ASN1_F_A2D_ASN1_OBJECT, ASN1_R_INVALID_DIGIT);
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goto err;
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}
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if (!use_bn && l >= ((ULONG_MAX - 80) / 10L)) {
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use_bn = 1;
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if (!bl)
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bl = BN_new();
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if (!bl || !BN_set_word(bl, l))
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goto err;
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}
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if (use_bn) {
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if (!BN_mul_word(bl, 10L)
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|| !BN_add_word(bl, c - '0'))
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goto err;
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} else
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l = l * 10L + (long)(c - '0');
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}
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if (len == 0) {
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if ((first < 2) && (l >= 40)) {
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ASN1err(ASN1_F_A2D_ASN1_OBJECT,
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ASN1_R_SECOND_NUMBER_TOO_LARGE);
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goto err;
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}
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if (use_bn) {
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if (!BN_add_word(bl, first * 40))
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goto err;
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} else
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l += (long)first *40;
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}
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i = 0;
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if (use_bn) {
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int blsize;
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blsize = BN_num_bits(bl);
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blsize = (blsize + 6) / 7;
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if (blsize > tmpsize) {
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if (tmp != ftmp)
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OPENSSL_free(tmp);
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tmpsize = blsize + 32;
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tmp = OPENSSL_malloc(tmpsize);
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if (!tmp)
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goto err;
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}
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2017-05-27 15:50:43 +00:00
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while (blsize--) {
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BN_ULONG t = BN_div_word(bl, 0x80L);
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if (t == (BN_ULONG)-1)
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goto err;
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tmp[i++] = (unsigned char)t;
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}
|
2016-04-10 13:18:59 +00:00
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} else {
|
2014-04-29 00:56:43 +00:00
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2016-04-10 13:18:59 +00:00
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for (;;) {
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tmp[i++] = (unsigned char)l & 0x7f;
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l >>= 7L;
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if (l == 0L)
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break;
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}
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2014-04-29 00:56:43 +00:00
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2016-04-10 13:18:59 +00:00
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}
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if (out != NULL) {
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if (len + i > olen) {
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ASN1err(ASN1_F_A2D_ASN1_OBJECT, ASN1_R_BUFFER_TOO_SMALL);
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goto err;
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}
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while (--i > 0)
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out[len++] = tmp[i] | 0x80;
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out[len++] = tmp[0];
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} else
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len += i;
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}
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if (tmp != ftmp)
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OPENSSL_free(tmp);
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if (bl)
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BN_free(bl);
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return (len);
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err:
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if (tmp != ftmp)
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OPENSSL_free(tmp);
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if (bl)
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BN_free(bl);
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return (0);
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}
|
2014-04-29 00:56:43 +00:00
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int i2t_ASN1_OBJECT(char *buf, int buf_len, ASN1_OBJECT *a)
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{
|
2016-04-10 13:18:59 +00:00
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return OBJ_obj2txt(buf, buf_len, a, 0);
|
2014-04-29 00:56:43 +00:00
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}
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int i2a_ASN1_OBJECT(BIO *bp, ASN1_OBJECT *a)
|
2016-04-10 13:18:59 +00:00
|
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{
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char buf[80], *p = buf;
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int i;
|
2014-04-29 00:56:43 +00:00
|
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|
2016-04-10 13:18:59 +00:00
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if ((a == NULL) || (a->data == NULL))
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return (BIO_write(bp, "NULL", 4));
|
2018-07-27 14:38:54 +00:00
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i = i2t_ASN1_OBJECT(buf, sizeof(buf), a);
|
2016-04-10 13:18:59 +00:00
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if (i > (int)(sizeof(buf) - 1)) {
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p = OPENSSL_malloc(i + 1);
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if (!p)
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return -1;
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i2t_ASN1_OBJECT(p, i + 1, a);
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}
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if (i <= 0)
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return BIO_write(bp, "<INVALID>", 9);
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BIO_write(bp, p, i);
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if (p != buf)
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OPENSSL_free(p);
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return (i);
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|
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}
|
2014-04-29 00:56:43 +00:00
|
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|
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ASN1_OBJECT *d2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp,
|
2016-04-10 13:18:59 +00:00
|
|
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long length)
|
2014-04-29 00:56:43 +00:00
|
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{
|
2016-04-10 13:18:59 +00:00
|
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const unsigned char *p;
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|
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long len;
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int tag, xclass;
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int inf, i;
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ASN1_OBJECT *ret = NULL;
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p = *pp;
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inf = ASN1_get_object(&p, &len, &tag, &xclass, length);
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if (inf & 0x80) {
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i = ASN1_R_BAD_OBJECT_HEADER;
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goto err;
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}
|
2014-04-29 00:56:43 +00:00
|
|
|
|
2016-04-10 13:18:59 +00:00
|
|
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if (tag != V_ASN1_OBJECT) {
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|
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i = ASN1_R_EXPECTING_AN_OBJECT;
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goto err;
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}
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ret = c2i_ASN1_OBJECT(a, &p, len);
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if (ret)
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*pp = p;
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return ret;
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err:
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|
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ASN1err(ASN1_F_D2I_ASN1_OBJECT, i);
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return (NULL);
|
2014-04-29 00:56:43 +00:00
|
|
|
}
|
2016-04-10 13:18:59 +00:00
|
|
|
|
2014-04-29 00:56:43 +00:00
|
|
|
ASN1_OBJECT *c2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp,
|
2016-04-10 13:18:59 +00:00
|
|
|
long len)
|
|
|
|
{
|
|
|
|
ASN1_OBJECT *ret = NULL;
|
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|
|
const unsigned char *p;
|
|
|
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unsigned char *data;
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|
|
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int i, length;
|
|
|
|
|
|
|
|
/*
|
|
|
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* Sanity check OID encoding. Need at least one content octet. MSB must
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|
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* be clear in the last octet. can't have leading 0x80 in subidentifiers,
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* see: X.690 8.19.2
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|
|
|
*/
|
|
|
|
if (len <= 0 || len > INT_MAX || pp == NULL || (p = *pp) == NULL ||
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|
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p[len - 1] & 0x80) {
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|
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ASN1err(ASN1_F_C2I_ASN1_OBJECT, ASN1_R_INVALID_OBJECT_ENCODING);
|
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|
|
return NULL;
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|
|
|
}
|
|
|
|
/* Now 0 < len <= INT_MAX, so the cast is safe. */
|
|
|
|
length = (int)len;
|
|
|
|
for (i = 0; i < length; i++, p++) {
|
|
|
|
if (*p == 0x80 && (!i || !(p[-1] & 0x80))) {
|
|
|
|
ASN1err(ASN1_F_C2I_ASN1_OBJECT, ASN1_R_INVALID_OBJECT_ENCODING);
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
}
|
2014-04-29 00:56:43 +00:00
|
|
|
|
2016-04-10 13:18:59 +00:00
|
|
|
/*
|
|
|
|
* only the ASN1_OBJECTs from the 'table' will have values for ->sn or
|
|
|
|
* ->ln
|
|
|
|
*/
|
|
|
|
if ((a == NULL) || ((*a) == NULL) ||
|
|
|
|
!((*a)->flags & ASN1_OBJECT_FLAG_DYNAMIC)) {
|
|
|
|
if ((ret = ASN1_OBJECT_new()) == NULL)
|
|
|
|
return (NULL);
|
|
|
|
} else
|
|
|
|
ret = (*a);
|
2014-04-29 00:56:43 +00:00
|
|
|
|
2016-04-10 13:18:59 +00:00
|
|
|
p = *pp;
|
|
|
|
/* detach data from object */
|
|
|
|
data = (unsigned char *)ret->data;
|
|
|
|
ret->data = NULL;
|
|
|
|
/* once detached we can change it */
|
|
|
|
if ((data == NULL) || (ret->length < length)) {
|
|
|
|
ret->length = 0;
|
|
|
|
if (data != NULL)
|
|
|
|
OPENSSL_free(data);
|
|
|
|
data = (unsigned char *)OPENSSL_malloc(length);
|
|
|
|
if (data == NULL) {
|
|
|
|
i = ERR_R_MALLOC_FAILURE;
|
|
|
|
goto err;
|
|
|
|
}
|
|
|
|
ret->flags |= ASN1_OBJECT_FLAG_DYNAMIC_DATA;
|
|
|
|
}
|
|
|
|
memcpy(data, p, length);
|
|
|
|
/* reattach data to object, after which it remains const */
|
|
|
|
ret->data = data;
|
|
|
|
ret->length = length;
|
|
|
|
ret->sn = NULL;
|
|
|
|
ret->ln = NULL;
|
|
|
|
/* ret->flags=ASN1_OBJECT_FLAG_DYNAMIC; we know it is dynamic */
|
|
|
|
p += length;
|
2014-04-29 00:56:43 +00:00
|
|
|
|
2016-04-10 13:18:59 +00:00
|
|
|
if (a != NULL)
|
|
|
|
(*a) = ret;
|
|
|
|
*pp = p;
|
|
|
|
return (ret);
|
|
|
|
err:
|
|
|
|
ASN1err(ASN1_F_C2I_ASN1_OBJECT, i);
|
|
|
|
if ((ret != NULL) && ((a == NULL) || (*a != ret)))
|
|
|
|
ASN1_OBJECT_free(ret);
|
|
|
|
return (NULL);
|
|
|
|
}
|
2014-04-29 00:56:43 +00:00
|
|
|
|
|
|
|
ASN1_OBJECT *ASN1_OBJECT_new(void)
|
2016-04-10 13:18:59 +00:00
|
|
|
{
|
|
|
|
ASN1_OBJECT *ret;
|
2014-04-29 00:56:43 +00:00
|
|
|
|
2016-04-10 13:18:59 +00:00
|
|
|
ret = (ASN1_OBJECT *)OPENSSL_malloc(sizeof(ASN1_OBJECT));
|
|
|
|
if (ret == NULL) {
|
|
|
|
ASN1err(ASN1_F_ASN1_OBJECT_NEW, ERR_R_MALLOC_FAILURE);
|
|
|
|
return (NULL);
|
|
|
|
}
|
|
|
|
ret->length = 0;
|
|
|
|
ret->data = NULL;
|
|
|
|
ret->nid = 0;
|
|
|
|
ret->sn = NULL;
|
|
|
|
ret->ln = NULL;
|
|
|
|
ret->flags = ASN1_OBJECT_FLAG_DYNAMIC;
|
|
|
|
return (ret);
|
|
|
|
}
|
2014-04-29 00:56:43 +00:00
|
|
|
|
|
|
|
void ASN1_OBJECT_free(ASN1_OBJECT *a)
|
2016-04-10 13:18:59 +00:00
|
|
|
{
|
|
|
|
if (a == NULL)
|
|
|
|
return;
|
|
|
|
if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC_STRINGS) {
|
|
|
|
#ifndef CONST_STRICT /* disable purely for compile-time strict
|
|
|
|
* const checking. Doing this on a "real"
|
|
|
|
* compile will cause memory leaks */
|
|
|
|
if (a->sn != NULL)
|
|
|
|
OPENSSL_free((void *)a->sn);
|
|
|
|
if (a->ln != NULL)
|
|
|
|
OPENSSL_free((void *)a->ln);
|
2014-04-29 00:56:43 +00:00
|
|
|
#endif
|
2016-04-10 13:18:59 +00:00
|
|
|
a->sn = a->ln = NULL;
|
|
|
|
}
|
|
|
|
if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC_DATA) {
|
|
|
|
if (a->data != NULL)
|
|
|
|
OPENSSL_free((void *)a->data);
|
|
|
|
a->data = NULL;
|
|
|
|
a->length = 0;
|
|
|
|
}
|
|
|
|
if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC)
|
|
|
|
OPENSSL_free(a);
|
|
|
|
}
|
2014-04-29 00:56:43 +00:00
|
|
|
|
|
|
|
ASN1_OBJECT *ASN1_OBJECT_create(int nid, unsigned char *data, int len,
|
2016-04-10 13:18:59 +00:00
|
|
|
const char *sn, const char *ln)
|
|
|
|
{
|
|
|
|
ASN1_OBJECT o;
|
2014-04-29 00:56:43 +00:00
|
|
|
|
2016-04-10 13:18:59 +00:00
|
|
|
o.sn = sn;
|
|
|
|
o.ln = ln;
|
|
|
|
o.data = data;
|
|
|
|
o.nid = nid;
|
|
|
|
o.length = len;
|
|
|
|
o.flags = ASN1_OBJECT_FLAG_DYNAMIC | ASN1_OBJECT_FLAG_DYNAMIC_STRINGS |
|
|
|
|
ASN1_OBJECT_FLAG_DYNAMIC_DATA;
|
|
|
|
return (OBJ_dup(&o));
|
|
|
|
}
|
2014-04-29 00:56:43 +00:00
|
|
|
|
|
|
|
IMPLEMENT_STACK_OF(ASN1_OBJECT)
|
2016-04-10 13:18:59 +00:00
|
|
|
|
2014-04-29 00:56:43 +00:00
|
|
|
IMPLEMENT_ASN1_SET_OF(ASN1_OBJECT)
|