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/* $OpenBSD: x509_att.c,v 1.15 2017/01/29 17:49:23 beck Exp $ */ |
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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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* |
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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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* |
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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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* |
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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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* 4. If you include any Windows specific code (or a derivative thereof) from |
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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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* |
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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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* |
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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 <openssl/asn1.h> |
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#include <openssl/err.h> |
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#include <openssl/evp.h> |
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#include <openssl/objects.h> |
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#include <openssl/stack.h> |
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#include <openssl/x509.h> |
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#include <openssl/x509v3.h> |
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int |
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X509at_get_attr_count(const STACK_OF(X509_ATTRIBUTE) *x) |
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{ |
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return sk_X509_ATTRIBUTE_num(x); |
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} |
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int |
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X509at_get_attr_by_NID(const STACK_OF(X509_ATTRIBUTE) *x, int nid, int lastpos) |
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{ |
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ASN1_OBJECT *obj; |
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|
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obj = OBJ_nid2obj(nid); |
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✗✓ |
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if (obj == NULL) |
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return (-2); |
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return (X509at_get_attr_by_OBJ(x, obj, lastpos)); |
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} |
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int |
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X509at_get_attr_by_OBJ(const STACK_OF(X509_ATTRIBUTE) *sk, ASN1_OBJECT *obj, |
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int lastpos) |
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{ |
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int n; |
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X509_ATTRIBUTE *ex; |
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|
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✓✗ |
8 |
if (sk == NULL) |
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return (-1); |
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lastpos++; |
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if (lastpos < 0) |
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lastpos = 0; |
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n = sk_X509_ATTRIBUTE_num(sk); |
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for (; lastpos < n; lastpos++) { |
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ex = sk_X509_ATTRIBUTE_value(sk, lastpos); |
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if (OBJ_cmp(ex->object, obj) == 0) |
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return (lastpos); |
103 |
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} |
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return (-1); |
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4 |
} |
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X509_ATTRIBUTE * |
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X509at_get_attr(const STACK_OF(X509_ATTRIBUTE) *x, int loc) |
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{ |
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if (x == NULL || sk_X509_ATTRIBUTE_num(x) <= loc || loc < 0) |
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return NULL; |
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else |
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return sk_X509_ATTRIBUTE_value(x, loc); |
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} |
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X509_ATTRIBUTE * |
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X509at_delete_attr(STACK_OF(X509_ATTRIBUTE) *x, int loc) |
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{ |
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X509_ATTRIBUTE *ret; |
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if (x == NULL || sk_X509_ATTRIBUTE_num(x) <= loc || loc < 0) |
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return (NULL); |
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ret = sk_X509_ATTRIBUTE_delete(x, loc); |
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return (ret); |
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} |
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STACK_OF(X509_ATTRIBUTE) * |
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X509at_add1_attr(STACK_OF(X509_ATTRIBUTE) **x, X509_ATTRIBUTE *attr) |
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{ |
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X509_ATTRIBUTE *new_attr = NULL; |
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STACK_OF(X509_ATTRIBUTE) *sk = NULL; |
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✗✓ |
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if (x == NULL) { |
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X509error(ERR_R_PASSED_NULL_PARAMETER); |
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return (NULL); |
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} |
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|
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✓✗ |
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if (*x == NULL) { |
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✓✗ |
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if ((sk = sk_X509_ATTRIBUTE_new_null()) == NULL) |
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goto err; |
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} else |
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sk = *x; |
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✓✗ |
6 |
if ((new_attr = X509_ATTRIBUTE_dup(attr)) == NULL) |
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goto err2; |
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✓✗ |
6 |
if (!sk_X509_ATTRIBUTE_push(sk, new_attr)) |
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goto err; |
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✓✗ |
6 |
if (*x == NULL) |
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*x = sk; |
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return (sk); |
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152 |
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err: |
153 |
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X509error(ERR_R_MALLOC_FAILURE); |
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err2: |
155 |
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if (new_attr != NULL) |
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X509_ATTRIBUTE_free(new_attr); |
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if (sk != NULL && sk != *x) |
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sk_X509_ATTRIBUTE_free(sk); |
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return (NULL); |
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} |
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162 |
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STACK_OF(X509_ATTRIBUTE) * |
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X509at_add1_attr_by_OBJ(STACK_OF(X509_ATTRIBUTE) **x, const ASN1_OBJECT *obj, |
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int type, const unsigned char *bytes, int len) |
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{ |
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X509_ATTRIBUTE *attr; |
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STACK_OF(X509_ATTRIBUTE) *ret; |
168 |
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169 |
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attr = X509_ATTRIBUTE_create_by_OBJ(NULL, obj, type, bytes, len); |
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if (!attr) |
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return 0; |
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ret = X509at_add1_attr(x, attr); |
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X509_ATTRIBUTE_free(attr); |
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return ret; |
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} |
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177 |
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STACK_OF(X509_ATTRIBUTE) * |
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X509at_add1_attr_by_NID(STACK_OF(X509_ATTRIBUTE) **x, int nid, int type, |
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const unsigned char *bytes, int len) |
180 |
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{ |
181 |
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X509_ATTRIBUTE *attr; |
182 |
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STACK_OF(X509_ATTRIBUTE) *ret; |
183 |
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184 |
|
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attr = X509_ATTRIBUTE_create_by_NID(NULL, nid, type, bytes, len); |
185 |
✗✓ |
6 |
if (!attr) |
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return 0; |
187 |
|
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ret = X509at_add1_attr(x, attr); |
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6 |
X509_ATTRIBUTE_free(attr); |
189 |
|
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return ret; |
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} |
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STACK_OF(X509_ATTRIBUTE) * |
193 |
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X509at_add1_attr_by_txt(STACK_OF(X509_ATTRIBUTE) **x, const char *attrname, |
194 |
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int type, const unsigned char *bytes, int len) |
195 |
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{ |
196 |
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X509_ATTRIBUTE *attr; |
197 |
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STACK_OF(X509_ATTRIBUTE) *ret; |
198 |
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199 |
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attr = X509_ATTRIBUTE_create_by_txt(NULL, attrname, type, bytes, len); |
200 |
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if (!attr) |
201 |
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return 0; |
202 |
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ret = X509at_add1_attr(x, attr); |
203 |
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X509_ATTRIBUTE_free(attr); |
204 |
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return ret; |
205 |
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} |
206 |
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207 |
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void * |
208 |
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X509at_get0_data_by_OBJ(STACK_OF(X509_ATTRIBUTE) *x, ASN1_OBJECT *obj, |
209 |
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int lastpos, int type) |
210 |
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{ |
211 |
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int i; |
212 |
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X509_ATTRIBUTE *at; |
213 |
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214 |
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i = X509at_get_attr_by_OBJ(x, obj, lastpos); |
215 |
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if (i == -1) |
216 |
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return NULL; |
217 |
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if ((lastpos <= -2) && (X509at_get_attr_by_OBJ(x, obj, i) != -1)) |
218 |
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return NULL; |
219 |
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at = X509at_get_attr(x, i); |
220 |
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if (lastpos <= -3 && (X509_ATTRIBUTE_count(at) != 1)) |
221 |
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return NULL; |
222 |
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return X509_ATTRIBUTE_get0_data(at, 0, type, NULL); |
223 |
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} |
224 |
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|
225 |
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X509_ATTRIBUTE * |
226 |
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X509_ATTRIBUTE_create_by_NID(X509_ATTRIBUTE **attr, int nid, int atrtype, |
227 |
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const void *data, int len) |
228 |
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{ |
229 |
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ASN1_OBJECT *obj; |
230 |
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X509_ATTRIBUTE *ret; |
231 |
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|
232 |
|
12 |
obj = OBJ_nid2obj(nid); |
233 |
✗✓ |
6 |
if (obj == NULL) { |
234 |
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X509error(X509_R_UNKNOWN_NID); |
235 |
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return (NULL); |
236 |
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} |
237 |
|
6 |
ret = X509_ATTRIBUTE_create_by_OBJ(attr, obj, atrtype, data, len); |
238 |
✗✓ |
6 |
if (ret == NULL) |
239 |
|
|
ASN1_OBJECT_free(obj); |
240 |
|
6 |
return (ret); |
241 |
|
6 |
} |
242 |
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|
243 |
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X509_ATTRIBUTE * |
244 |
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X509_ATTRIBUTE_create_by_OBJ(X509_ATTRIBUTE **attr, const ASN1_OBJECT *obj, |
245 |
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int atrtype, const void *data, int len) |
246 |
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{ |
247 |
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X509_ATTRIBUTE *ret; |
248 |
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|
249 |
✗✓✗✗
|
12 |
if ((attr == NULL) || (*attr == NULL)) { |
250 |
✗✓ |
6 |
if ((ret = X509_ATTRIBUTE_new()) == NULL) { |
251 |
|
|
X509error(ERR_R_MALLOC_FAILURE); |
252 |
|
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return (NULL); |
253 |
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} |
254 |
|
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} else |
255 |
|
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ret= *attr; |
256 |
|
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|
257 |
✓✗ |
6 |
if (!X509_ATTRIBUTE_set1_object(ret, obj)) |
258 |
|
|
goto err; |
259 |
✓✗ |
6 |
if (!X509_ATTRIBUTE_set1_data(ret, atrtype, data, len)) |
260 |
|
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goto err; |
261 |
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|
262 |
✗✓✗✗
|
6 |
if ((attr != NULL) && (*attr == NULL)) |
263 |
|
|
*attr = ret; |
264 |
|
6 |
return (ret); |
265 |
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|
266 |
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err: |
267 |
|
|
if ((attr == NULL) || (ret != *attr)) |
268 |
|
|
X509_ATTRIBUTE_free(ret); |
269 |
|
|
return (NULL); |
270 |
|
6 |
} |
271 |
|
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|
272 |
|
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X509_ATTRIBUTE * |
273 |
|
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X509_ATTRIBUTE_create_by_txt(X509_ATTRIBUTE **attr, const char *atrname, |
274 |
|
|
int type, const unsigned char *bytes, int len) |
275 |
|
|
{ |
276 |
|
|
ASN1_OBJECT *obj; |
277 |
|
|
X509_ATTRIBUTE *nattr; |
278 |
|
|
|
279 |
|
|
obj = OBJ_txt2obj(atrname, 0); |
280 |
|
|
if (obj == NULL) { |
281 |
|
|
X509error(X509_R_INVALID_FIELD_NAME); |
282 |
|
|
ERR_asprintf_error_data("name=%s", atrname); |
283 |
|
|
return (NULL); |
284 |
|
|
} |
285 |
|
|
nattr = X509_ATTRIBUTE_create_by_OBJ(attr, obj, type, bytes, len); |
286 |
|
|
ASN1_OBJECT_free(obj); |
287 |
|
|
return nattr; |
288 |
|
|
} |
289 |
|
|
|
290 |
|
|
int |
291 |
|
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X509_ATTRIBUTE_set1_object(X509_ATTRIBUTE *attr, const ASN1_OBJECT *obj) |
292 |
|
|
{ |
293 |
✗✓ |
12 |
if ((attr == NULL) || (obj == NULL)) |
294 |
|
|
return (0); |
295 |
|
6 |
ASN1_OBJECT_free(attr->object); |
296 |
|
6 |
attr->object = OBJ_dup(obj); |
297 |
|
6 |
return attr->object != NULL; |
298 |
|
6 |
} |
299 |
|
|
|
300 |
|
|
int |
301 |
|
|
X509_ATTRIBUTE_set1_data(X509_ATTRIBUTE *attr, int attrtype, const void *data, |
302 |
|
|
int len) |
303 |
|
|
{ |
304 |
|
|
ASN1_TYPE *ttmp = NULL; |
305 |
|
|
ASN1_STRING *stmp = NULL; |
306 |
|
|
int atype = 0; |
307 |
|
|
|
308 |
✗✓ |
12 |
if (!attr) |
309 |
|
|
return 0; |
310 |
✓✓ |
6 |
if (attrtype & MBSTRING_FLAG) { |
311 |
|
2 |
stmp = ASN1_STRING_set_by_NID(NULL, data, len, attrtype, |
312 |
|
2 |
OBJ_obj2nid(attr->object)); |
313 |
✗✓ |
2 |
if (!stmp) { |
314 |
|
|
X509error(ERR_R_ASN1_LIB); |
315 |
|
|
return 0; |
316 |
|
|
} |
317 |
|
2 |
atype = stmp->type; |
318 |
✓✗ |
6 |
} else if (len != -1){ |
319 |
✓✗ |
4 |
if (!(stmp = ASN1_STRING_type_new(attrtype))) |
320 |
|
|
goto err; |
321 |
✓✗ |
4 |
if (!ASN1_STRING_set(stmp, data, len)) |
322 |
|
|
goto err; |
323 |
|
|
atype = attrtype; |
324 |
|
4 |
} |
325 |
✓✗ |
6 |
if (!(attr->value.set = sk_ASN1_TYPE_new_null())) |
326 |
|
|
goto err; |
327 |
|
6 |
attr->single = 0; |
328 |
|
|
/* This is a bit naughty because the attribute should really have |
329 |
|
|
* at least one value but some types use and zero length SET and |
330 |
|
|
* require this. |
331 |
|
|
*/ |
332 |
✗✓ |
6 |
if (attrtype == 0) { |
333 |
|
|
ASN1_STRING_free(stmp); |
334 |
|
|
return 1; |
335 |
|
|
} |
336 |
|
|
|
337 |
✓✗ |
6 |
if (!(ttmp = ASN1_TYPE_new())) |
338 |
|
|
goto err; |
339 |
✗✓✗✗
|
6 |
if ((len == -1) && !(attrtype & MBSTRING_FLAG)) { |
340 |
|
|
if (!ASN1_TYPE_set1(ttmp, attrtype, data)) |
341 |
|
|
goto err; |
342 |
|
|
} else |
343 |
|
6 |
ASN1_TYPE_set(ttmp, atype, stmp); |
344 |
✓✗ |
6 |
if (!sk_ASN1_TYPE_push(attr->value.set, ttmp)) |
345 |
|
|
goto err; |
346 |
|
6 |
return 1; |
347 |
|
|
|
348 |
|
|
err: |
349 |
|
|
ASN1_TYPE_free(ttmp); |
350 |
|
|
ASN1_STRING_free(stmp); |
351 |
|
|
X509error(ERR_R_MALLOC_FAILURE); |
352 |
|
|
return 0; |
353 |
|
6 |
} |
354 |
|
|
|
355 |
|
|
int |
356 |
|
|
X509_ATTRIBUTE_count(X509_ATTRIBUTE *attr) |
357 |
|
|
{ |
358 |
|
|
if (!attr->single) |
359 |
|
|
return sk_ASN1_TYPE_num(attr->value.set); |
360 |
|
|
if (attr->value.single) |
361 |
|
|
return 1; |
362 |
|
|
return 0; |
363 |
|
|
} |
364 |
|
|
|
365 |
|
|
ASN1_OBJECT * |
366 |
|
|
X509_ATTRIBUTE_get0_object(X509_ATTRIBUTE *attr) |
367 |
|
|
{ |
368 |
|
|
if (attr == NULL) |
369 |
|
|
return (NULL); |
370 |
|
|
return (attr->object); |
371 |
|
|
} |
372 |
|
|
|
373 |
|
|
void * |
374 |
|
|
X509_ATTRIBUTE_get0_data(X509_ATTRIBUTE *attr, int idx, int atrtype, void *data) |
375 |
|
|
{ |
376 |
|
|
ASN1_TYPE *ttmp; |
377 |
|
|
|
378 |
|
|
ttmp = X509_ATTRIBUTE_get0_type(attr, idx); |
379 |
|
|
if (!ttmp) |
380 |
|
|
return NULL; |
381 |
|
|
if (atrtype != ASN1_TYPE_get(ttmp)){ |
382 |
|
|
X509error(X509_R_WRONG_TYPE); |
383 |
|
|
return NULL; |
384 |
|
|
} |
385 |
|
|
return ttmp->value.ptr; |
386 |
|
|
} |
387 |
|
|
|
388 |
|
|
ASN1_TYPE * |
389 |
|
|
X509_ATTRIBUTE_get0_type(X509_ATTRIBUTE *attr, int idx) |
390 |
|
|
{ |
391 |
|
|
if (attr == NULL) |
392 |
|
|
return (NULL); |
393 |
|
|
if (idx >= X509_ATTRIBUTE_count(attr)) |
394 |
|
|
return NULL; |
395 |
|
|
if (!attr->single) |
396 |
|
|
return sk_ASN1_TYPE_value(attr->value.set, idx); |
397 |
|
|
else |
398 |
|
|
return attr->value.single; |
399 |
|
|
} |