/*

 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project

 * 1999.

 */

/* ====================================================================

 * Copyright (c) 1999 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 <string.h>

#include <openssl/asn1.h>

#include <openssl/asn1t.h>

#include <openssl/conf.h>

#include <openssl/err.h>

#include <openssl/mem.h>

#include <openssl/obj.h>

#include <openssl/x509v3.h>

static STACK_OF(CONF_VALUE) *i2v_AUTHORITY_INFO_ACCESS(

    const X509V3_EXT_METHOD *method, void *ext, STACK_OF(CONF_VALUE) *ret);

static void *v2i_AUTHORITY_INFO_ACCESS(const X509V3_EXT_METHOD *method,

                                       const X509V3_CTX *ctx,

                                       const STACK_OF(CONF_VALUE) *nval);

const X509V3_EXT_METHOD v3_info = {

    NID_info_access,

    X509V3_EXT_MULTILINE,

    ASN1_ITEM_ref(AUTHORITY_INFO_ACCESS),

    0,

    0,

    0,

    0,

    0,

    0,

    i2v_AUTHORITY_INFO_ACCESS,

    v2i_AUTHORITY_INFO_ACCESS,

    0,

    0,

    NULL,

};

const X509V3_EXT_METHOD v3_sinfo = {

    NID_sinfo_access,

    X509V3_EXT_MULTILINE,

    ASN1_ITEM_ref(AUTHORITY_INFO_ACCESS),

    0,

    0,

    0,

    0,

    0,

    0,

    i2v_AUTHORITY_INFO_ACCESS,

    v2i_AUTHORITY_INFO_ACCESS,

    0,

    0,

    NULL,

};

ASN1_SEQUENCE(ACCESS_DESCRIPTION) = {

    ASN1_SIMPLE(ACCESS_DESCRIPTION, method, ASN1_OBJECT),

    ASN1_SIMPLE(ACCESS_DESCRIPTION, location, GENERAL_NAME),

} ASN1_SEQUENCE_END(ACCESS_DESCRIPTION)

IMPLEMENT_ASN1_FUNCTIONS(ACCESS_DESCRIPTION)

ASN1_ITEM_TEMPLATE(AUTHORITY_INFO_ACCESS) = ASN1_EX_TEMPLATE_TYPE(

    ASN1_TFLG_SEQUENCE_OF, 0, GeneralNames, ACCESS_DESCRIPTION)

ASN1_ITEM_TEMPLATE_END(AUTHORITY_INFO_ACCESS)

IMPLEMENT_ASN1_FUNCTIONS(AUTHORITY_INFO_ACCESS)

static STACK_OF(CONF_VALUE) *i2v_AUTHORITY_INFO_ACCESS(

    const X509V3_EXT_METHOD *method, void *ext, STACK_OF(CONF_VALUE) *ret) {

  const AUTHORITY_INFO_ACCESS *ainfo = ext;

  ACCESS_DESCRIPTION *desc;

  int nlen;

  char objtmp[80], *ntmp;

  CONF_VALUE *vtmp;

  STACK_OF(CONF_VALUE) *tret = ret;

  for (size_t i = 0; i < sk_ACCESS_DESCRIPTION_num(ainfo); i++) {

    STACK_OF(CONF_VALUE) *tmp;

    desc = sk_ACCESS_DESCRIPTION_value(ainfo, i);

    tmp = i2v_GENERAL_NAME(method, desc->location, tret);

    if (tmp == NULL) {

      goto err;

    }

    tret = tmp;

    vtmp = sk_CONF_VALUE_value(tret, i);

    i2t_ASN1_OBJECT(objtmp, sizeof objtmp, desc->method);

    nlen = strlen(objtmp) + strlen(vtmp->name) + 5;

    ntmp = OPENSSL_malloc(nlen);

    if (ntmp == NULL) {

      goto err;

    }

    OPENSSL_strlcpy(ntmp, objtmp, nlen);

    OPENSSL_strlcat(ntmp, " - ", nlen);

    OPENSSL_strlcat(ntmp, vtmp->name, nlen);

    OPENSSL_free(vtmp->name);

    vtmp->name = ntmp;

  }

  if (ret == NULL && tret == NULL) {

    return sk_CONF_VALUE_new_null();

  }

  return tret;

err:

  if (ret == NULL && tret != NULL) {

    sk_CONF_VALUE_pop_free(tret, X509V3_conf_free);

  }

  return NULL;

}

static void *v2i_AUTHORITY_INFO_ACCESS(const X509V3_EXT_METHOD *method,

                                       const X509V3_CTX *ctx,

                                       const STACK_OF(CONF_VALUE) *nval) {

  AUTHORITY_INFO_ACCESS *ainfo = NULL;

  ACCESS_DESCRIPTION *acc;

  if (!(ainfo = sk_ACCESS_DESCRIPTION_new_null())) {

    return NULL;

  }

  for (size_t i = 0; i < sk_CONF_VALUE_num(nval); i++) {

    const CONF_VALUE *cnf = sk_CONF_VALUE_value(nval, i);

    if (!(acc = ACCESS_DESCRIPTION_new()) ||

        !sk_ACCESS_DESCRIPTION_push(ainfo, acc)) {

      goto err;

    }

    char *ptmp = strchr(cnf->name, ';');

    if (!ptmp) {

      OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_SYNTAX);

      goto err;

    }

    CONF_VALUE ctmp;

    ctmp.name = ptmp + 1;

    ctmp.value = cnf->value;

    if (!v2i_GENERAL_NAME_ex(acc->location, method, ctx, &ctmp, 0)) {

      goto err;

    }

    char *objtmp = OPENSSL_strndup(cnf->name, ptmp - cnf->name);

    if (objtmp == NULL) {

      goto err;

    }

    acc->method = OBJ_txt2obj(objtmp, 0);

    if (!acc->method) {

      OPENSSL_PUT_ERROR(X509V3, X509V3_R_BAD_OBJECT);

      ERR_add_error_data(2, "value=", objtmp);

      OPENSSL_free(objtmp);

      goto err;

    }

    OPENSSL_free(objtmp);

  }

  return ainfo;

err:

  sk_ACCESS_DESCRIPTION_pop_free(ainfo, ACCESS_DESCRIPTION_free);

  return NULL;

}

int i2a_ACCESS_DESCRIPTION(BIO *bp, const ACCESS_DESCRIPTION *a) {

  i2a_ASN1_OBJECT(bp, a->method);

  return 2;

}