/* crypto/ts/ts_lib.c */
/*
 * Written by Zoltan Glozik (zglozik@stones.com) for the OpenSSL project
 * 2002.
 */
/* ====================================================================
 * Copyright (c) 2006 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
 *    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 acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    licensing@OpenSSL.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED 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 OpenSSL PROJECT OR
 * ITS 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.
 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * (eay@cryptsoft.com).  This product includes software written by Tim
 * Hudson (tjh@cryptsoft.com).
 *
 */

#include <stdio.h>
#include "internal/cryptlib.h"
#include <openssl/objects.h>
#include <openssl/bn.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
#include <openssl/ts.h>
#include "ts_lcl.h"

int TS_ASN1_INTEGER_print_bio(BIO *bio, const ASN1_INTEGER *num)
{
    BIGNUM *num_bn;
    int result = 0;
    char *hex;

    num_bn = BN_new();
    if (!num_bn)
        return -1;
    ASN1_INTEGER_to_BN(num, num_bn);
    if ((hex = BN_bn2hex(num_bn))) {
        result = BIO_write(bio, "0x", 2) > 0;
        result = result && BIO_write(bio, hex, strlen(hex)) > 0;
        OPENSSL_free(hex);
    }
    BN_free(num_bn);

    return result;
}

int TS_OBJ_print_bio(BIO *bio, const ASN1_OBJECT *obj)
{
    char obj_txt[128];

    int len = OBJ_obj2txt(obj_txt, sizeof(obj_txt), obj, 0);
    BIO_write(bio, obj_txt, len);
    BIO_write(bio, "\n", 1);

    return 1;
}

int TS_ext_print_bio(BIO *bio, const STACK_OF(X509_EXTENSION) *extensions)
{
    int i, critical, n;
    X509_EXTENSION *ex;
    ASN1_OBJECT *obj;

    BIO_printf(bio, "Extensions:\n");
    n = X509v3_get_ext_count(extensions);
    for (i = 0; i < n; i++) {
        ex = X509v3_get_ext(extensions, i);
        obj = X509_EXTENSION_get_object(ex);
        i2a_ASN1_OBJECT(bio, obj);
        critical = X509_EXTENSION_get_critical(ex);
        BIO_printf(bio, ": %s\n", critical ? "critical" : "");
        if (!X509V3_EXT_print(bio, ex, 0, 4)) {
            BIO_printf(bio, "%4s", "");
            ASN1_STRING_print(bio, X509_EXTENSION_get_data(ex));
        }
        BIO_write(bio, "\n", 1);
    }

    return 1;
}

int TS_X509_ALGOR_print_bio(BIO *bio, const X509_ALGOR *alg)
{
    int i = OBJ_obj2nid(alg->algorithm);
    return BIO_printf(bio, "Hash Algorithm: %s\n",
                      (i == NID_undef) ? "UNKNOWN" : OBJ_nid2ln(i));
}

int TS_MSG_IMPRINT_print_bio(BIO *bio, TS_MSG_IMPRINT *a)
{
    ASN1_OCTET_STRING *msg;

    TS_X509_ALGOR_print_bio(bio, a->hash_algo);

    BIO_printf(bio, "Message data:\n");
    msg = a->hashed_msg;
    BIO_dump_indent(bio, (const char *)ASN1_STRING_data(msg),
                    ASN1_STRING_length(msg), 4);

    return 1;
}