openssl/crypto/pkcs7/pk7_mime.c

/* pk7_mime.c */
/*
 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
 * project.
 */
/* ====================================================================
 * Copyright (c) 1999-2005 The OpenSSL Project.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
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 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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 *    prior written permission. For written permission, please contact
 *    licensing@OpenSSL.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
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 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
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#include <stdio.h>
#include <ctype.h>
#include "cryptlib.h"
#include <openssl/rand.h>
#include <openssl/x509.h>
#include <openssl/asn1.h>

/* PKCS#7 wrappers round generalised stream and MIME routines */

int i2d_PKCS7_bio_stream(BIO *out, PKCS7 *p7, BIO *in, int flags)
{
    return i2d_ASN1_bio_stream(out, (ASN1_VALUE *)p7, in, flags,
                               ASN1_ITEM_rptr(PKCS7));
}

int PEM_write_bio_PKCS7_stream(BIO *out, PKCS7 *p7, BIO *in, int flags)
{
    return PEM_write_bio_ASN1_stream(out, (ASN1_VALUE *)p7, in, flags,
                                     "PKCS7", ASN1_ITEM_rptr(PKCS7));
}

int SMIME_write_PKCS7(BIO *bio, PKCS7 *p7, BIO *data, int flags)
{
    STACK_OF(X509_ALGOR) *mdalgs;
    int ctype_nid = OBJ_obj2nid(p7->type);
    if (ctype_nid == NID_pkcs7_signed)
        mdalgs = p7->d.sign->md_algs;
    else
        mdalgs = NULL;

    flags ^= SMIME_OLDMIME;

    return SMIME_write_ASN1(bio, (ASN1_VALUE *)p7, data, flags,
                            ctype_nid, NID_undef, mdalgs,
                            ASN1_ITEM_rptr(PKCS7));
}

PKCS7 *SMIME_read_PKCS7(BIO *bio, BIO **bcont)
{
    return (PKCS7 *)SMIME_read_ASN1(bio, bcont, ASN1_ITEM_rptr(PKCS7));
}