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/* tasn_new.c */ |
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/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL |
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* project 2000. |
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*/ |
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/* ==================================================================== |
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* Copyright (c) 2000 The OpenSSL Project. All rights reserved. |
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* |
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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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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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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 |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* 3. All advertising materials mentioning features or use of this |
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* software must display the following acknowledgment: |
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* "This product includes software developed by the OpenSSL Project |
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" |
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* |
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
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* endorse or promote products derived from this software without |
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* prior written permission. For written permission, please contact |
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* licensing@OpenSSL.org. |
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* |
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* 5. Products derived from this software may not be called "OpenSSL" |
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* nor may "OpenSSL" appear in their names without prior written |
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* permission of the OpenSSL Project. |
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* |
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* 6. Redistributions of any form whatsoever must retain the following |
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* acknowledgment: |
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* "This product includes software developed by the OpenSSL Project |
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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* OF THE POSSIBILITY OF SUCH DAMAGE. |
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* ==================================================================== |
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* |
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* This product includes cryptographic software written by Eric Young |
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* (eay@cryptsoft.com). This product includes software written by Tim |
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* Hudson (tjh@cryptsoft.com). |
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* |
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*/ |
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|
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#include <stddef.h> |
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#include <openssl/asn1.h> |
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#include <openssl/objects.h> |
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#include <openssl/err.h> |
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#include <openssl/asn1t.h> |
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#include <string.h> |
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|
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static int asn1_item_ex_combine_new(ASN1_VALUE **pval, const ASN1_ITEM *it, int combine); |
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static void asn1_item_clear(ASN1_VALUE **pval, const ASN1_ITEM *it); |
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static void asn1_template_clear(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt); |
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void asn1_primitive_clear(ASN1_VALUE **pval, const ASN1_ITEM *it); |
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|
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ASN1_VALUE *ASN1_item_new(const ASN1_ITEM *it) |
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109759 |
{ |
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109759 |
ASN1_VALUE *ret = NULL; |
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109759 |
if(ASN1_item_ex_new(&ret, it) > 0) return ret; |
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0 |
return NULL; |
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} |
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|
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/* Allocate an ASN1 structure */ |
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|
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int ASN1_item_ex_new(ASN1_VALUE **pval, const ASN1_ITEM *it) |
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534932 |
{ |
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534932 |
return asn1_item_ex_combine_new(pval, it, 0); |
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} |
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|
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static int asn1_item_ex_combine_new(ASN1_VALUE **pval, const ASN1_ITEM *it, int combine) |
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1782449 |
{ |
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1782449 |
const ASN1_TEMPLATE *tt = NULL; |
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const ASN1_COMPAT_FUNCS *cf; |
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const ASN1_EXTERN_FUNCS *ef; |
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1782449 |
const ASN1_AUX *aux = it->funcs; |
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ASN1_aux_cb *asn1_cb; |
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ASN1_VALUE **pseqval; |
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int i; |
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1782449 |
if(aux && aux->asn1_cb) asn1_cb = aux->asn1_cb; |
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1715088 |
else asn1_cb = 0; |
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|
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1782449 |
if(!combine) *pval = NULL; |
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|
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#ifdef CRYPTO_MDEBUG |
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if(it->sname) CRYPTO_push_info(it->sname); |
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#endif |
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|
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1782449 |
switch(it->itype) { |
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|
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case ASN1_ITYPE_EXTERN: |
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57387 |
ef = it->funcs; |
108 |
57387 |
if(ef && ef->asn1_ex_new) { |
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57387 |
if(!ef->asn1_ex_new(pval, it)) |
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goto memerr; |
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} |
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break; |
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|
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case ASN1_ITYPE_COMPAT: |
115 |
0 |
cf = it->funcs; |
116 |
0 |
if(cf && cf->asn1_new) { |
117 |
0 |
*pval = cf->asn1_new(); |
118 |
0 |
if(!*pval) goto memerr; |
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} |
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break; |
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|
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case ASN1_ITYPE_PRIMITIVE: |
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713723 |
if(it->templates) { |
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0 |
if(!ASN1_template_new(pval, it->templates)) |
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goto memerr; |
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} else { |
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713723 |
if(!ASN1_primitive_new(pval, it)) |
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goto memerr; |
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} |
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break; |
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case ASN1_ITYPE_MSTRING: |
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401127 |
if(!ASN1_primitive_new(pval, it)) |
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goto memerr; |
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break; |
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|
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case ASN1_ITYPE_CHOICE: |
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if(asn1_cb) { |
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0 |
i = asn1_cb(ASN1_OP_NEW_PRE, pval, it); |
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if(!i) goto auxerr; |
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if(i==2) { |
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#ifdef CRYPTO_MDEBUG |
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if(it->sname) CRYPTO_pop_info(); |
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#endif |
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return 1; |
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} |
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} |
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if(!combine) { |
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0 |
*pval = OPENSSL_malloc(it->size); |
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if(!*pval) goto memerr; |
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memset(*pval, 0, it->size); |
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} |
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asn1_set_choice_selector(pval, -1, it); |
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if(asn1_cb && !asn1_cb(ASN1_OP_NEW_POST, pval, it)) |
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goto auxerr; |
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break; |
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|
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case ASN1_ITYPE_SEQUENCE: |
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610198 |
if(asn1_cb) { |
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i = asn1_cb(ASN1_OP_NEW_PRE, pval, it); |
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if(!i) goto auxerr; |
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67361 |
if(i==2) { |
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#ifdef CRYPTO_MDEBUG |
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if(it->sname) CRYPTO_pop_info(); |
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#endif |
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8525 |
return 1; |
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} |
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} |
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601673 |
if(!combine) { |
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601673 |
*pval = OPENSSL_malloc(it->size); |
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601673 |
if(!*pval) goto memerr; |
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601673 |
memset(*pval, 0, it->size); |
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601673 |
asn1_do_lock(pval, 0, it); |
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601673 |
asn1_enc_init(pval, it); |
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} |
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2102302 |
for(i = 0, tt = it->templates; i < it->tcount; tt++, i++) { |
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1500629 |
pseqval = asn1_get_field_ptr(pval, tt); |
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1500629 |
if(!ASN1_template_new(pseqval, tt)) goto memerr; |
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} |
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601673 |
if(asn1_cb && !asn1_cb(ASN1_OP_NEW_POST, pval, it)) |
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1773924 |
goto auxerr; |
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break; |
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} |
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#ifdef CRYPTO_MDEBUG |
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if(it->sname) CRYPTO_pop_info(); |
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#endif |
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1773924 |
return 1; |
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|
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0 |
memerr: |
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ASN1err(ASN1_F_ASN1_ITEM_NEW, ERR_R_MALLOC_FAILURE); |
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#ifdef CRYPTO_MDEBUG |
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if(it->sname) CRYPTO_pop_info(); |
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#endif |
194 |
0 |
return 0; |
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|
196 |
0 |
auxerr: |
197 |
0 |
ASN1err(ASN1_F_ASN1_ITEM_NEW, ASN1_R_AUX_ERROR); |
198 |
0 |
ASN1_item_ex_free(pval, it); |
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#ifdef CRYPTO_MDEBUG |
200 |
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if(it->sname) CRYPTO_pop_info(); |
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#endif |
202 |
0 |
return 0; |
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|
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} |
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|
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static void asn1_item_clear(ASN1_VALUE **pval, const ASN1_ITEM *it) |
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223708 |
{ |
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const ASN1_EXTERN_FUNCS *ef; |
209 |
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|
210 |
223708 |
switch(it->itype) { |
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|
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case ASN1_ITYPE_EXTERN: |
213 |
0 |
ef = it->funcs; |
214 |
0 |
if(ef && ef->asn1_ex_clear) |
215 |
0 |
ef->asn1_ex_clear(pval, it); |
216 |
0 |
else *pval = NULL; |
217 |
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break; |
218 |
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|
219 |
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220 |
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case ASN1_ITYPE_PRIMITIVE: |
221 |
223708 |
if(it->templates) |
222 |
0 |
asn1_template_clear(pval, it->templates); |
223 |
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else |
224 |
223708 |
asn1_primitive_clear(pval, it); |
225 |
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break; |
226 |
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|
227 |
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case ASN1_ITYPE_MSTRING: |
228 |
0 |
asn1_primitive_clear(pval, it); |
229 |
0 |
break; |
230 |
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|
231 |
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case ASN1_ITYPE_COMPAT: |
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case ASN1_ITYPE_CHOICE: |
233 |
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case ASN1_ITYPE_SEQUENCE: |
234 |
0 |
*pval = NULL; |
235 |
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break; |
236 |
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} |
237 |
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} |
238 |
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|
239 |
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|
240 |
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int ASN1_template_new(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt) |
241 |
1500629 |
{ |
242 |
1500629 |
const ASN1_ITEM *it = ASN1_ITEM_ptr(tt->item); |
243 |
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int ret; |
244 |
1500629 |
if(tt->flags & ASN1_TFLG_OPTIONAL) { |
245 |
253112 |
asn1_template_clear(pval, tt); |
246 |
253112 |
return 1; |
247 |
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} |
248 |
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/* If ANY DEFINED BY nothing to do */ |
249 |
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|
250 |
1247517 |
if(tt->flags & ASN1_TFLG_ADB_MASK) { |
251 |
0 |
*pval = NULL; |
252 |
0 |
return 1; |
253 |
|
} |
254 |
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#ifdef CRYPTO_MDEBUG |
255 |
|
if(tt->field_name) CRYPTO_push_info(tt->field_name); |
256 |
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#endif |
257 |
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/* If SET OF or SEQUENCE OF, its a STACK */ |
258 |
1247517 |
if(tt->flags & ASN1_TFLG_SK_MASK) { |
259 |
|
STACK_OF(ASN1_VALUE) *skval; |
260 |
0 |
skval = sk_ASN1_VALUE_new_null(); |
261 |
0 |
if(!skval) { |
262 |
0 |
ASN1err(ASN1_F_ASN1_TEMPLATE_NEW, ERR_R_MALLOC_FAILURE); |
263 |
0 |
ret = 0; |
264 |
0 |
goto done; |
265 |
|
} |
266 |
0 |
*pval = (ASN1_VALUE *)skval; |
267 |
0 |
ret = 1; |
268 |
0 |
goto done; |
269 |
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} |
270 |
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/* Otherwise pass it back to the item routine */ |
271 |
1247517 |
ret = asn1_item_ex_combine_new(pval, it, tt->flags & ASN1_TFLG_COMBINE); |
272 |
1247517 |
done: |
273 |
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#ifdef CRYPTO_MDEBUG |
274 |
|
if(it->sname) CRYPTO_pop_info(); |
275 |
|
#endif |
276 |
1247517 |
return ret; |
277 |
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} |
278 |
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|
279 |
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static void asn1_template_clear(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt) |
280 |
253112 |
{ |
281 |
|
/* If ADB or STACK just NULL the field */ |
282 |
253112 |
if(tt->flags & (ASN1_TFLG_ADB_MASK|ASN1_TFLG_SK_MASK)) |
283 |
29404 |
*pval = NULL; |
284 |
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else |
285 |
223708 |
asn1_item_clear(pval, ASN1_ITEM_ptr(tt->item)); |
286 |
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} |
287 |
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|
288 |
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|
289 |
|
/* NB: could probably combine most of the real XXX_new() behaviour and junk all the old |
290 |
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* functions. |
291 |
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*/ |
292 |
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|
293 |
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int ASN1_primitive_new(ASN1_VALUE **pval, const ASN1_ITEM *it) |
294 |
1114850 |
{ |
295 |
|
ASN1_TYPE *typ; |
296 |
|
int utype; |
297 |
|
const ASN1_PRIMITIVE_FUNCS *pf; |
298 |
1114850 |
pf = it->funcs; |
299 |
1114850 |
if(pf && pf->prim_new) return pf->prim_new(pval, it); |
300 |
1114850 |
if(!it || (it->itype == ASN1_ITYPE_MSTRING)) utype = -1; |
301 |
713723 |
else utype = it->utype; |
302 |
1114850 |
switch(utype) { |
303 |
|
case V_ASN1_OBJECT: |
304 |
477459 |
*pval = (ASN1_VALUE *)OBJ_nid2obj(NID_undef); |
305 |
477459 |
return 1; |
306 |
|
|
307 |
|
case V_ASN1_BOOLEAN: |
308 |
0 |
if (it) |
309 |
0 |
*(ASN1_BOOLEAN *)pval = it->size; |
310 |
|
else |
311 |
0 |
*(ASN1_BOOLEAN *)pval = -1; |
312 |
0 |
return 1; |
313 |
|
|
314 |
|
case V_ASN1_NULL: |
315 |
0 |
*pval = (ASN1_VALUE *)1; |
316 |
0 |
return 1; |
317 |
|
|
318 |
|
case V_ASN1_ANY: |
319 |
101124 |
typ = OPENSSL_malloc(sizeof(ASN1_TYPE)); |
320 |
101124 |
if(!typ) return 0; |
321 |
101124 |
typ->value.ptr = NULL; |
322 |
101124 |
typ->type = -1; |
323 |
101124 |
*pval = (ASN1_VALUE *)typ; |
324 |
101124 |
break; |
325 |
|
|
326 |
|
default: |
327 |
536267 |
*pval = (ASN1_VALUE *)ASN1_STRING_type_new(utype); |
328 |
|
break; |
329 |
|
} |
330 |
637391 |
if(*pval) return 1; |
331 |
0 |
return 0; |
332 |
|
} |
333 |
|
|
334 |
|
void asn1_primitive_clear(ASN1_VALUE **pval, const ASN1_ITEM *it) |
335 |
223708 |
{ |
336 |
|
int utype; |
337 |
|
const ASN1_PRIMITIVE_FUNCS *pf; |
338 |
223708 |
pf = it->funcs; |
339 |
223708 |
if(pf) { |
340 |
0 |
if(pf->prim_clear) |
341 |
0 |
pf->prim_clear(pval, it); |
342 |
|
else |
343 |
0 |
*pval = NULL; |
344 |
|
return; |
345 |
|
} |
346 |
223708 |
if(!it || (it->itype == ASN1_ITYPE_MSTRING)) utype = -1; |
347 |
223708 |
else utype = it->utype; |
348 |
223708 |
if(utype == V_ASN1_BOOLEAN) |
349 |
44970 |
*(ASN1_BOOLEAN *)pval = it->size; |
350 |
178738 |
else *pval = NULL; |