crypto/pkcs7/pk7_mime.c

   1 /*
   2  * Copyright 1999-2017 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the OpenSSL license (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #include <stdio.h>
  11 #include "internal/cryptlib.h"
  12 #include <openssl/x509.h>
  13 #include <openssl/asn1.h>
  14
  15 /* PKCS#7 wrappers round generalised stream and MIME routines */
  16
  17 int i2d_PKCS7_bio_stream(BIO *out, PKCS7 *p7, BIO *in, int flags)
  18 {
  19     return i2d_ASN1_bio_stream(out, (ASN1_VALUE *)p7, in, flags,
  20                                ASN1_ITEM_rptr(PKCS7));
  21 }
  22
  23 int PEM_write_bio_PKCS7_stream(BIO *out, PKCS7 *p7, BIO *in, int flags)
  24 {
  25     return PEM_write_bio_ASN1_stream(out, (ASN1_VALUE *)p7, in, flags,
  26                                      "PKCS7", ASN1_ITEM_rptr(PKCS7));
  27 }
  28
  29 int SMIME_write_PKCS7(BIO *bio, PKCS7 *p7, BIO *data, int flags)
  30 {
  31     STACK_OF(X509_ALGOR) *mdalgs;
  32     int ctype_nid = OBJ_obj2nid(p7->type);
  33     if (ctype_nid == NID_pkcs7_signed)
  34         mdalgs = p7->d.sign->md_algs;
  35     else
  36         mdalgs = NULL;
  37
  38     flags ^= SMIME_OLDMIME;
  39
  40     return SMIME_write_ASN1(bio, (ASN1_VALUE *)p7, data, flags,
  41                             ctype_nid, NID_undef, mdalgs,
  42                             ASN1_ITEM_rptr(PKCS7));
  43 }
  44
  45 PKCS7 *SMIME_read_PKCS7(BIO *bio, BIO **bcont)
  46 {
  47     return (PKCS7 *)SMIME_read_ASN1(bio, bcont, ASN1_ITEM_rptr(PKCS7));
  48 }