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-rw-r--r--src/lib/libcrypto/cms/cms_io.c140
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diff --git a/src/lib/libcrypto/cms/cms_io.c b/src/lib/libcrypto/cms/cms_io.c
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1/* crypto/cms/cms_io.c */
2/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3 * project.
4 */
5/* ====================================================================
6 * Copyright (c) 2008 The OpenSSL Project. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
18 * distribution.
19 *
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24 *
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
29 *
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
33 *
34 * 6. Redistributions of any form whatsoever must retain the following
35 * acknowledgment:
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 *
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
52 */
53
54#include <openssl/asn1t.h>
55#include <openssl/x509.h>
56#include <openssl/err.h>
57#include <openssl/pem.h>
58#include "cms.h"
59#include "cms_lcl.h"
60
61CMS_ContentInfo *d2i_CMS_bio(BIO *bp, CMS_ContentInfo **cms)
62 {
63 return ASN1_item_d2i_bio(ASN1_ITEM_rptr(CMS_ContentInfo), bp, cms);
64 }
65
66int i2d_CMS_bio(BIO *bp, CMS_ContentInfo *cms)
67 {
68 return ASN1_item_i2d_bio(ASN1_ITEM_rptr(CMS_ContentInfo), bp, cms);
69 }
70
71IMPLEMENT_PEM_rw_const(CMS, CMS_ContentInfo, PEM_STRING_CMS, CMS_ContentInfo)
72
73/* Callback for int_smime_write_ASN1 */
74
75static int cms_output_data(BIO *out, BIO *data, ASN1_VALUE *val, int flags,
76 const ASN1_ITEM *it)
77 {
78 CMS_ContentInfo *cms = (CMS_ContentInfo *)val;
79 BIO *tmpbio, *cmsbio;
80 int r = 0;
81
82 if (!(flags & SMIME_DETACHED))
83 {
84 SMIME_crlf_copy(data, out, flags);
85 return 1;
86 }
87
88 /* Let CMS code prepend any needed BIOs */
89
90 cmsbio = CMS_dataInit(cms, out);
91
92 if (!cmsbio)
93 return 0;
94
95 /* Copy data across, passing through filter BIOs for processing */
96 SMIME_crlf_copy(data, cmsbio, flags);
97
98 /* Finalize structure */
99 if (CMS_dataFinal(cms, cmsbio) <= 0)
100 goto err;
101
102 r = 1;
103
104 err:
105
106 /* Now remove any digests prepended to the BIO */
107
108 while (cmsbio != out)
109 {
110 tmpbio = BIO_pop(cmsbio);
111 BIO_free(cmsbio);
112 cmsbio = tmpbio;
113 }
114
115 return 1;
116
117 }
118
119
120int SMIME_write_CMS(BIO *bio, CMS_ContentInfo *cms, BIO *data, int flags)
121 {
122 STACK_OF(X509_ALGOR) *mdalgs;
123 int ctype_nid = OBJ_obj2nid(cms->contentType);
124 int econt_nid = OBJ_obj2nid(CMS_get0_eContentType(cms));
125 if (ctype_nid == NID_pkcs7_signed)
126 mdalgs = cms->d.signedData->digestAlgorithms;
127 else
128 mdalgs = NULL;
129
130 return int_smime_write_ASN1(bio, (ASN1_VALUE *)cms, data, flags,
131 ctype_nid, econt_nid, mdalgs,
132 cms_output_data,
133 ASN1_ITEM_rptr(CMS_ContentInfo));
134 }
135
136CMS_ContentInfo *SMIME_read_CMS(BIO *bio, BIO **bcont)
137 {
138 return (CMS_ContentInfo *)SMIME_read_ASN1(bio, bcont,
139 ASN1_ITEM_rptr(CMS_ContentInfo));
140 }
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