pk7_attr.c
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上传日期:2020-08-09
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- /* pk7_attr.c */
- /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
- * project 2001.
- */
- /* ====================================================================
- * Copyright (c) 2001-2004 The OpenSSL Project. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * licensing@OpenSSL.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- * nor may "OpenSSL" appear in their names without prior written
- * permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com). This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
- *
- */
- #include <stdio.h>
- #include <stdlib.h>
- #include <openssl/bio.h>
- #include <openssl/asn1.h>
- #include <openssl/pem.h>
- #include <openssl/pkcs7.h>
- #include <openssl/x509.h>
- #include <openssl/err.h>
- int PKCS7_add_attrib_smimecap(PKCS7_SIGNER_INFO *si, STACK_OF(X509_ALGOR) *cap)
- {
- ASN1_STRING *seq;
- unsigned char *p, *pp;
- int len;
- len=i2d_ASN1_SET_OF_X509_ALGOR(cap,NULL,i2d_X509_ALGOR,
- V_ASN1_SEQUENCE,V_ASN1_UNIVERSAL,
- IS_SEQUENCE);
- if(!(pp=(unsigned char *)OPENSSL_malloc(len))) {
- PKCS7err(PKCS7_F_PKCS7_ADD_ATTRIB_SMIMECAP,ERR_R_MALLOC_FAILURE);
- return 0;
- }
- p=pp;
- i2d_ASN1_SET_OF_X509_ALGOR(cap,&p,i2d_X509_ALGOR, V_ASN1_SEQUENCE,
- V_ASN1_UNIVERSAL, IS_SEQUENCE);
- if(!(seq = ASN1_STRING_new())) {
- PKCS7err(PKCS7_F_PKCS7_ADD_ATTRIB_SMIMECAP,ERR_R_MALLOC_FAILURE);
- return 0;
- }
- if(!ASN1_STRING_set (seq, pp, len)) {
- PKCS7err(PKCS7_F_PKCS7_ADD_ATTRIB_SMIMECAP,ERR_R_MALLOC_FAILURE);
- return 0;
- }
- OPENSSL_free (pp);
- return PKCS7_add_signed_attribute(si, NID_SMIMECapabilities,
- V_ASN1_SEQUENCE, seq);
- }
- STACK_OF(X509_ALGOR) *PKCS7_get_smimecap(PKCS7_SIGNER_INFO *si)
- {
- ASN1_TYPE *cap;
- const unsigned char *p;
- cap = PKCS7_get_signed_attribute(si, NID_SMIMECapabilities);
- if (!cap || (cap->type != V_ASN1_SEQUENCE))
- return NULL;
- p = cap->value.sequence->data;
- return d2i_ASN1_SET_OF_X509_ALGOR(NULL, &p,
- cap->value.sequence->length,
- d2i_X509_ALGOR, X509_ALGOR_free,
- V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL);
- }
- /* Basic smime-capabilities OID and optional integer arg */
- int PKCS7_simple_smimecap(STACK_OF(X509_ALGOR) *sk, int nid, int arg)
- {
- X509_ALGOR *alg;
- if(!(alg = X509_ALGOR_new())) {
- PKCS7err(PKCS7_F_PKCS7_SIMPLE_SMIMECAP,ERR_R_MALLOC_FAILURE);
- return 0;
- }
- ASN1_OBJECT_free(alg->algorithm);
- alg->algorithm = OBJ_nid2obj (nid);
- if (arg > 0) {
- ASN1_INTEGER *nbit;
- if(!(alg->parameter = ASN1_TYPE_new())) {
- PKCS7err(PKCS7_F_PKCS7_SIMPLE_SMIMECAP,ERR_R_MALLOC_FAILURE);
- return 0;
- }
- if(!(nbit = ASN1_INTEGER_new())) {
- PKCS7err(PKCS7_F_PKCS7_SIMPLE_SMIMECAP,ERR_R_MALLOC_FAILURE);
- return 0;
- }
- if(!ASN1_INTEGER_set (nbit, arg)) {
- PKCS7err(PKCS7_F_PKCS7_SIMPLE_SMIMECAP,ERR_R_MALLOC_FAILURE);
- return 0;
- }
- alg->parameter->value.integer = nbit;
- alg->parameter->type = V_ASN1_INTEGER;
- }
- sk_X509_ALGOR_push (sk, alg);
- return 1;
- }