crypto/pkcs7/pk7_mime.c

   1 /*
   2  * Copyright 1999-2016 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 <ctype.h>
  12 #include "internal/cryptlib.h"
  13 #include <openssl/rand.h>
  14 #include <openssl/x509.h>
  15 #include <openssl/asn1.h>
  16
  17 /* PKCS#7 wrappers round generalised stream and MIME routines */
  18
  19 int i2d_PKCS7_bio_stream(BIO *out, PKCS7 *p7, BIO *in, int flags)
  20 {
  21     return i2d_ASN1_bio_stream(out, (ASN1_VALUE *)p7, in, flags,
  22                                ASN1_ITEM_rptr(PKCS7));
  23 }
  24
  25 int PEM_write_bio_PKCS7_stream(BIO *out, PKCS7 *p7, BIO *in, int flags)
  26 {
  27     return PEM_write_bio_ASN1_stream(out, (ASN1_VALUE *)p7, in, flags,
  28                                      "PKCS7", ASN1_ITEM_rptr(PKCS7));
  29 }
  30
  31 int SMIME_write_PKCS7(BIO *bio, PKCS7 *p7, BIO *data, int flags)
  32 {
  33     STACK_OF(X509_ALGOR) *mdalgs;
  34     int ctype_nid = OBJ_obj2nid(p7->type);
  35     if (ctype_nid == NID_pkcs7_signed)
  36         mdalgs = p7->d.sign->md_algs;
  37     else
  38         mdalgs = NULL;
  39
  40     flags ^= SMIME_OLDMIME;
  41
  42     return SMIME_write_ASN1(bio, (ASN1_VALUE *)p7, data, flags,
  43                             ctype_nid, NID_undef, mdalgs,
  44                             ASN1_ITEM_rptr(PKCS7));
  45 }
  46
  47 PKCS7 *SMIME_read_PKCS7(BIO *bio, BIO **bcont)
  48 {
  49     return (PKCS7 *)SMIME_read_ASN1(bio, bcont, ASN1_ITEM_rptr(PKCS7));
  50 }