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       1                 :            : /* pk7_mime.c */
       2                 :            : /* Written by Dr Stephen N Henson (steve@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@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                 :          9 : int i2d_PKCS7_bio_stream(BIO *out, PKCS7 *p7, BIO *in, int flags)
      65                 :            :         {
      66                 :          9 :         return i2d_ASN1_bio_stream(out, (ASN1_VALUE *)p7, in, flags,
      67                 :            :                                         ASN1_ITEM_rptr(PKCS7));
      68                 :            :         }
      69                 :            : 
      70                 :          0 : int PEM_write_bio_PKCS7_stream(BIO *out, PKCS7 *p7, BIO *in, int flags)
      71                 :            :         {
      72                 :          0 :         return PEM_write_bio_ASN1_stream(out, (ASN1_VALUE *) p7, in, flags,
      73                 :            :                                                 "PKCS7",
      74                 :            :                                                 ASN1_ITEM_rptr(PKCS7));
      75                 :            :         }
      76                 :            : 
      77                 :          6 : int SMIME_write_PKCS7(BIO *bio, PKCS7 *p7, BIO *data, int flags)
      78                 :            :         {
      79                 :            :         STACK_OF(X509_ALGOR) *mdalgs;
      80                 :          6 :         int ctype_nid = OBJ_obj2nid(p7->type);
      81         [ +  + ]:          6 :         if (ctype_nid == NID_pkcs7_signed)
      82                 :          2 :                 mdalgs = p7->d.sign->md_algs;
      83                 :            :         else
      84                 :            :                 mdalgs = NULL;
      85                 :            : 
      86                 :          6 :         flags ^= SMIME_OLDMIME;
      87                 :            : 
      88                 :            : 
      89                 :          6 :         return SMIME_write_ASN1(bio, (ASN1_VALUE *)p7, data, flags,
      90                 :            :                                         ctype_nid, NID_undef, mdalgs,
      91                 :            :                                         ASN1_ITEM_rptr(PKCS7)); 
      92                 :            :         }
      93                 :            : 
      94                 :          6 : PKCS7 *SMIME_read_PKCS7(BIO *bio, BIO **bcont)
      95                 :            :         {
      96                 :          6 :         return (PKCS7 *)SMIME_read_ASN1(bio, bcont, ASN1_ITEM_rptr(PKCS7));
      97                 :            :         }