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      1 /* pk7_mime.c */
      2 /* Written by Dr Stephen N Henson (steve (at) openssl.org) for the OpenSSL
      3  * project.
      4  */
      5 /* ====================================================================
      6  * Copyright (c) 1999-2005 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 (at) 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 
     55 #include <stdio.h>
     56 #include <ctype.h>
     57 #include "cryptlib.h"
     58 #include <openssl/rand.h>
     59 #include <openssl/x509.h>
     60 #include <openssl/asn1.h>
     61 
     62 /* PKCS#7 wrappers round generalised stream and MIME routines */
     63 
     64 int i2d_PKCS7_bio_stream(BIO *out, PKCS7 *p7, BIO *in, int flags)
     65 	{
     66 	return i2d_ASN1_bio_stream(out, (ASN1_VALUE *)p7, in, flags,
     67 					ASN1_ITEM_rptr(PKCS7));
     68 	}
     69 
     70 int PEM_write_bio_PKCS7_stream(BIO *out, PKCS7 *p7, BIO *in, int flags)
     71 	{
     72 	return PEM_write_bio_ASN1_stream(out, (ASN1_VALUE *) p7, in, flags,
     73 						"PKCS7",
     74 						ASN1_ITEM_rptr(PKCS7));
     75 	}
     76 
     77 int SMIME_write_PKCS7(BIO *bio, PKCS7 *p7, BIO *data, int flags)
     78 	{
     79 	STACK_OF(X509_ALGOR) *mdalgs;
     80 	int ctype_nid = OBJ_obj2nid(p7->type);
     81 	if (ctype_nid == NID_pkcs7_signed)
     82 		mdalgs = p7->d.sign->md_algs;
     83 	else
     84 		mdalgs = NULL;
     85 
     86 	flags ^= SMIME_OLDMIME;
     87 
     88 
     89 	return SMIME_write_ASN1(bio, (ASN1_VALUE *)p7, data, flags,
     90 					ctype_nid, NID_undef, mdalgs,
     91 					ASN1_ITEM_rptr(PKCS7));
     92 	}
     93 
     94 PKCS7 *SMIME_read_PKCS7(BIO *bio, BIO **bcont)
     95 	{
     96 	return (PKCS7 *)SMIME_read_ASN1(bio, bcont, ASN1_ITEM_rptr(PKCS7));
     97 	}
     98