/* $OpenBSD: cms_cd.c,v 1.4 2014/07/10 22:45:56 jsing Exp $ */ /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL * project. */ /* ==================================================================== * Copyright (c) 2008 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. * ==================================================================== */ #include #include "cryptlib.h" #include #include #include #include #include #include #ifndef OPENSSL_NO_COMP #include #endif #include "cms_lcl.h" DECLARE_ASN1_ITEM(CMS_CompressedData) #ifdef ZLIB /* CMS CompressedData Utilities */ CMS_ContentInfo * cms_CompressedData_create(int comp_nid) { CMS_ContentInfo *cms; CMS_CompressedData *cd; /* Will need something cleverer if there is ever more than one * compression algorithm or parameters have some meaning... */ if (comp_nid != NID_zlib_compression) { CMSerr(CMS_F_CMS_COMPRESSEDDATA_CREATE, CMS_R_UNSUPPORTED_COMPRESSION_ALGORITHM); return NULL; } cms = CMS_ContentInfo_new(); if (!cms) return NULL; cd = M_ASN1_new_of(CMS_CompressedData); if (!cd) goto err; cms->contentType = OBJ_nid2obj(NID_id_smime_ct_compressedData); cms->d.compressedData = cd; cd->version = 0; X509_ALGOR_set0(cd->compressionAlgorithm, OBJ_nid2obj(NID_zlib_compression), V_ASN1_UNDEF, NULL); cd->encapContentInfo->eContentType = OBJ_nid2obj(NID_pkcs7_data); return cms; err: if (cms) CMS_ContentInfo_free(cms); return NULL; } BIO * cms_CompressedData_init_bio(CMS_ContentInfo *cms) { CMS_CompressedData *cd; ASN1_OBJECT *compoid; if (OBJ_obj2nid(cms->contentType) != NID_id_smime_ct_compressedData) { CMSerr(CMS_F_CMS_COMPRESSEDDATA_INIT_BIO, CMS_R_CONTENT_TYPE_NOT_COMPRESSED_DATA); return NULL; } cd = cms->d.compressedData; X509_ALGOR_get0(&compoid, NULL, NULL, cd->compressionAlgorithm); if (OBJ_obj2nid(compoid) != NID_zlib_compression) { CMSerr(CMS_F_CMS_COMPRESSEDDATA_INIT_BIO, CMS_R_UNSUPPORTED_COMPRESSION_ALGORITHM); return NULL; } return BIO_new(BIO_f_zlib()); } #endif