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crypto
cms
cms_cd.c
Go to the documentation of this file.
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/* crypto/cms/cms_cd.c */
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/* Written by Dr Stephen N Henson (
[email protected]
) for the OpenSSL
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* project.
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*/
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/* ====================================================================
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* Copyright (c) 2008 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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*
[email protected]
.
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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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#include "
cryptlib.h
"
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#include <
openssl/asn1t.h
>
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#include <
openssl/pem.h
>
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#include <
openssl/x509v3.h
>
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#include <
openssl/err.h
>
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#include <
openssl/cms.h
>
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#include <
openssl/bio.h
>
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#include <
openssl/comp.h
>
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#include "
cms_lcl.h
"
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DECLARE_ASN1_ITEM
(
CMS_CompressedData
)
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#ifdef ZLIB
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/* CMS CompressedData Utilities */
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CMS_ContentInfo
*
cms_CompressedData_create
(
int
comp_nid)
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{
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CMS_ContentInfo
*cms;
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CMS_CompressedData
*cd;
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/* Will need something cleverer if there is ever more than one
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* compression algorithm or parameters have some meaning...
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*/
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if
(comp_nid !=
NID_zlib_compression
)
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{
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CMSerr
(
CMS_F_CMS_COMPRESSEDDATA_CREATE
,
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CMS_R_UNSUPPORTED_COMPRESSION_ALGORITHM
);
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return
NULL;
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}
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cms = CMS_ContentInfo_new();
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if
(!cms)
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return
NULL;
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cd =
M_ASN1_new_of
(
CMS_CompressedData
);
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if
(!cd)
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goto
err;
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cms->
contentType
=
OBJ_nid2obj
(
NID_id_smime_ct_compressedData
);
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cms->
d
.
compressedData
= cd;
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cd->
version
= 0;
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X509_ALGOR_set0
(cd->
compressionAlgorithm
,
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OBJ_nid2obj
(
NID_zlib_compression
),
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V_ASN1_UNDEF
, NULL);
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cd->
encapContentInfo
->
eContentType
=
OBJ_nid2obj
(
NID_pkcs7_data
);
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return
cms;
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err:
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if
(cms)
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CMS_ContentInfo_free(cms);
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return
NULL;
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}
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BIO
*
cms_CompressedData_init_bio
(
CMS_ContentInfo
*cms)
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{
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CMS_CompressedData
*cd;
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ASN1_OBJECT
*compoid;
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if
(
OBJ_obj2nid
(cms->
contentType
) !=
NID_id_smime_ct_compressedData
)
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{
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CMSerr
(
CMS_F_CMS_COMPRESSEDDATA_INIT_BIO
,
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CMS_R_CONTENT_TYPE_NOT_COMPRESSED_DATA
);
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return
NULL;
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}
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cd = cms->
d
.
compressedData
;
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X509_ALGOR_get0
(&compoid, NULL, NULL, cd->
compressionAlgorithm
);
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if
(
OBJ_obj2nid
(compoid) !=
NID_zlib_compression
)
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{
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CMSerr
(
CMS_F_CMS_COMPRESSEDDATA_INIT_BIO
,
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CMS_R_UNSUPPORTED_COMPRESSION_ALGORITHM
);
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return
NULL;
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}
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return
BIO_new
(BIO_f_zlib());
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}
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#endif
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