/*

 * Copyright 1999-2026 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 <openssl/asn1t.h>

#include <openssl/x509v3.h>

#include "ext_dat.h"

#include <crypto/asn1.h>

ASN1_ITEM_TEMPLATE(OSSL_USER_NOTICE_SYNTAX) = ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, OSSL_USER_NOTICE_SYNTAX, USERNOTICE)

ASN1_ITEM_TEMPLATE_END(OSSL_USER_NOTICE_SYNTAX)

IMPLEMENT_ASN1_FUNCTIONS(OSSL_USER_NOTICE_SYNTAX)

static int print_notice(BIO *out, USERNOTICE *notice, int indent)

{

    int i;

    ASN1_INTEGER *num;

    char *tmp;

    if (notice->noticeref) {

        NOTICEREF *ref;

        ref = notice->noticeref;

        if (BIO_printf(out, "%*sOrganization: %.*s\n", indent, "",

                ref->organization->length,

                ref->organization->length

                    ? ref->organization->data

                    : (const unsigned char *)"")

            <= 0)

            return 0;

        if (BIO_printf(out, "%*sNumber%s: ", indent, "",

                sk_ASN1_INTEGER_num(ref->noticenos) > 1 ? "s" : "")

            <= 0)

            return 0;

        for (i = 0; i < sk_ASN1_INTEGER_num(ref->noticenos); i++) {

            num = sk_ASN1_INTEGER_value(ref->noticenos, i);

            if (i && BIO_puts(out, ", ") <= 0)

                return 0;

            if (num == NULL && BIO_puts(out, "(null)") <= 0)

                return 0;

            else {

                tmp = i2s_ASN1_INTEGER(NULL, num);

                if (tmp == NULL)

                    return 0;

                if (BIO_puts(out, tmp) <= 0) {

                    OPENSSL_free(tmp);

                    return 0;

                }

                OPENSSL_free(tmp);

            }

        }

        if (notice->exptext && BIO_puts(out, "\n") <= 0)

            return 0;

    }

    if (notice->exptext == NULL)

        return 1;

    return BIO_printf(out, "%*sExplicit Text: %.*s", indent, "",

               notice->exptext->length,

               notice->exptext->length

                   ? notice->exptext->data

                   : (const unsigned char *)"")

        >= 0;

}

static int i2r_USER_NOTICE_SYNTAX(X509V3_EXT_METHOD *method,

    OSSL_USER_NOTICE_SYNTAX *uns,

    BIO *out, int indent)

{

    int i;

    USERNOTICE *unotice;

    if (BIO_printf(out, "%*sUser Notices:\n", indent, "") <= 0)

        return 0;

    for (i = 0; i < sk_USERNOTICE_num(uns); i++) {

        unotice = sk_USERNOTICE_value(uns, i);

        if (!print_notice(out, unotice, indent + 4))

            return 0;

        if (BIO_puts(out, "\n\n") <= 0)

            return 0;

    }

    return 1;

}

const X509V3_EXT_METHOD ossl_v3_user_notice = {

    NID_user_notice, 0,

    ASN1_ITEM_ref(OSSL_USER_NOTICE_SYNTAX),

    0, 0, 0, 0,

    0,

    0,

    0, 0,

    (X509V3_EXT_I2R)i2r_USER_NOTICE_SYNTAX,

    0,

    NULL

};