1 /* crypto/cms/cms_io.c */
3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
6 /* ====================================================================
7 * Copyright (c) 2008 The OpenSSL Project. All rights reserved.
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10 * modification, are permitted provided that the following conditions
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14 * notice, this list of conditions and the following disclaimer.
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22 * software must display the following acknowledgment:
23 * "This product includes software developed by the OpenSSL Project
24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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37 * "This product includes software developed by the OpenSSL Project
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40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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52 * ====================================================================
55 #include <openssl/asn1t.h>
56 #include <openssl/x509.h>
57 #include <openssl/err.h>
58 #include <openssl/pem.h>
62 CMS_ContentInfo *d2i_CMS_bio(BIO *bp, CMS_ContentInfo **cms)
64 return ASN1_item_d2i_bio(ASN1_ITEM_rptr(CMS_ContentInfo), bp, cms);
67 int i2d_CMS_bio(BIO *bp, CMS_ContentInfo *cms)
69 return ASN1_item_i2d_bio(ASN1_ITEM_rptr(CMS_ContentInfo), bp, cms);
72 IMPLEMENT_PEM_rw_const(CMS, CMS_ContentInfo, PEM_STRING_CMS, CMS_ContentInfo)
74 /* Callback for int_smime_write_ASN1 */
75 static int cms_output_data(BIO *out, BIO *data, ASN1_VALUE *val, int flags,
78 CMS_ContentInfo *cms = (CMS_ContentInfo *)val;
82 if (!(flags & SMIME_DETACHED)) {
83 SMIME_crlf_copy(data, out, flags);
87 /* Let CMS code prepend any needed BIOs */
89 cmsbio = CMS_dataInit(cms, out);
94 /* Copy data across, passing through filter BIOs for processing */
95 SMIME_crlf_copy(data, cmsbio, flags);
97 /* Finalize structure */
98 if (CMS_dataFinal(cms, cmsbio) <= 0)
105 /* Now remove any digests prepended to the BIO */
107 while (cmsbio != out) {
108 tmpbio = BIO_pop(cmsbio);
117 int SMIME_write_CMS(BIO *bio, CMS_ContentInfo *cms, BIO *data, int flags)
119 STACK_OF(X509_ALGOR) *mdalgs;
120 int ctype_nid = OBJ_obj2nid(cms->contentType);
121 int econt_nid = OBJ_obj2nid(CMS_get0_eContentType(cms));
122 if (ctype_nid == NID_pkcs7_signed)
123 mdalgs = cms->d.signedData->digestAlgorithms;
127 return int_smime_write_ASN1(bio, (ASN1_VALUE *)cms, data, flags,
128 ctype_nid, econt_nid, mdalgs,
130 ASN1_ITEM_rptr(CMS_ContentInfo));
133 CMS_ContentInfo *SMIME_read_CMS(BIO *bio, BIO **bcont)
135 return (CMS_ContentInfo *)SMIME_read_ASN1(bio, bcont,