/* $OpenBSD: x_sig.c,v 1.18 2024/07/08 14:48:49 beck Exp $ */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 *
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 *
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 *
 * 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 copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 *
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */

#include <stdio.h>

#include <openssl/asn1t.h>
#include <openssl/x509.h>

#include "x509_local.h"

static const ASN1_TEMPLATE X509_SIG_seq_tt[] = {
        {
                .offset = offsetof(X509_SIG, algor),
                .field_name = "algor",
                .item = &X509_ALGOR_it,
        },
        {
                .offset = offsetof(X509_SIG, digest),
                .field_name = "digest",
                .item = &ASN1_OCTET_STRING_it,
        },
};

const ASN1_ITEM X509_SIG_it = {
        .itype = ASN1_ITYPE_SEQUENCE,
        .utype = V_ASN1_SEQUENCE,
        .templates = X509_SIG_seq_tt,
        .tcount = sizeof(X509_SIG_seq_tt) / sizeof(ASN1_TEMPLATE),
        .size = sizeof(X509_SIG),
        .sname = "X509_SIG",
};
LCRYPTO_ALIAS(X509_SIG_it);


X509_SIG *
d2i_X509_SIG(X509_SIG **a, const unsigned char **in, long len)
{
        return (X509_SIG *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
            &X509_SIG_it);
}
LCRYPTO_ALIAS(d2i_X509_SIG);

int
i2d_X509_SIG(X509_SIG *a, unsigned char **out)
{
        return ASN1_item_i2d((ASN1_VALUE *)a, out, &X509_SIG_it);
}
LCRYPTO_ALIAS(i2d_X509_SIG);

X509_SIG *
X509_SIG_new(void)
{
        return (X509_SIG *)ASN1_item_new(&X509_SIG_it);
}
LCRYPTO_ALIAS(X509_SIG_new);

void
X509_SIG_free(X509_SIG *a)
{
        ASN1_item_free((ASN1_VALUE *)a, &X509_SIG_it);
}
LCRYPTO_ALIAS(X509_SIG_free);

void
X509_SIG_get0(const X509_SIG *sig, const X509_ALGOR **palg,
    const ASN1_OCTET_STRING **pdigest)
{
        if (palg != NULL)
                *palg = sig->algor;
        if (pdigest != NULL)
                *pdigest = sig->digest;
}
LCRYPTO_ALIAS(X509_SIG_get0);

void
X509_SIG_getm(X509_SIG *sig, X509_ALGOR **palg, ASN1_OCTET_STRING **pdigest)
{
        if (palg != NULL)
                *palg = sig->algor;
        if (pdigest != NULL)
                *pdigest = sig->digest;
}
LCRYPTO_ALIAS(X509_SIG_getm);