/*

 * Copyright 2006-2018 The OpenSSL Project Authors. All Rights Reserved.

 *

 * Licensed under the Apache License 2.0 (the "License").  You may not use

 * this file except in compliance with the License.  You can obtain a copy

 * in the file LICENSE in the source distribution or at

 * https://www.openssl.org/source/license.html

 */

#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_local.h"

int TS_ASN1_INTEGER_print_bio(BIO *bio, const ASN1_INTEGER *num)

{

    BIGNUM *num_bn;

    int result = 0;

    char *hex;

    num_bn = ASN1_INTEGER_to_BN(num, NULL);

    if (num_bn == NULL)

        return -1;

    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];

    OBJ_obj2txt(obj_txt, sizeof(obj_txt), obj, 0);

    BIO_printf(bio, "%s\n", obj_txt);

    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);

        if (i2a_ASN1_OBJECT(bio, obj) < 0)

            return 0;

        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_get0_data(msg),

                    ASN1_STRING_length(msg), 4);

    return 1;

}