lib/libcrypto/pkcs7/pk7_mime.c

   1 /* $OpenBSD: pk7_mime.c,v 1.13 2016/12/30 15:38:13 jsing Exp $ */
   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 <ctype.h>
  56 #include <stdio.h>
  57
  58 #include <openssl/asn1.h>
  59 #include <openssl/x509.h>
  60
  61 /* PKCS#7 wrappers round generalised stream and MIME routines */
  62
  63 int
  64 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             &PKCS7_it);
  68 }
  69
  70 int
  71 PEM_write_bio_PKCS7_stream(BIO *out, PKCS7 *p7, BIO *in, int flags)
  72 {
  73         return PEM_write_bio_ASN1_stream(out, (ASN1_VALUE *) p7, in, flags,
  74             "PKCS7", &PKCS7_it);
  75 }
  76
  77 int
  78 SMIME_write_PKCS7(BIO *bio, PKCS7 *p7, BIO *data, int flags)
  79 {
  80         STACK_OF(X509_ALGOR) *mdalgs;
  81         int ctype_nid = OBJ_obj2nid(p7->type);
  82         if (ctype_nid == NID_pkcs7_signed)
  83                 mdalgs = p7->d.sign->md_algs;
  84         else
  85                 mdalgs = NULL;
  86
  87         flags ^= SMIME_OLDMIME;
  88
  89
  90         return SMIME_write_ASN1(bio, (ASN1_VALUE *)p7, data, flags,
  91             ctype_nid, NID_undef, mdalgs, &PKCS7_it);
  92 }
  93
  94 PKCS7 *
  95 SMIME_read_PKCS7(BIO *bio, BIO **bcont)
  96 {
  97         return (PKCS7 *)SMIME_read_ASN1(bio, bcont, &PKCS7_it);
  98 }