// Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#include <openssl/asn1.h>
#include <openssl/evp.h>
#include <openssl/obj.h>
#include <openssl/stack.h>
#include <openssl/x509.h>

#include "internal.h"

int X509_CRL_get_ext_count(const X509_CRL *x) {
  return X509v3_get_ext_count(x->crl->extensions);
}

int X509_CRL_get_ext_by_NID(const X509_CRL *x, int nid, int lastpos) {
  return X509v3_get_ext_by_NID(x->crl->extensions, nid, lastpos);
}

int X509_CRL_get_ext_by_OBJ(const X509_CRL *x, const ASN1_OBJECT *obj,
                            int lastpos) {
  return X509v3_get_ext_by_OBJ(x->crl->extensions, obj, lastpos);
}

int X509_CRL_get_ext_by_critical(const X509_CRL *x, int crit, int lastpos) {
  return X509v3_get_ext_by_critical(x->crl->extensions, crit, lastpos);
}

X509_EXTENSION *X509_CRL_get_ext(const X509_CRL *x, int loc) {
  return X509v3_get_ext(x->crl->extensions, loc);
}

static X509_EXTENSION *delete_ext(STACK_OF(X509_EXTENSION) **exts, int loc) {
  X509_EXTENSION *ext = X509v3_delete_ext(*exts, loc);
  // Empty extension lists are omitted.
  if (*exts != nullptr && sk_X509_EXTENSION_num(*exts) == 0) {
    sk_X509_EXTENSION_pop_free(*exts, X509_EXTENSION_free);
    *exts = nullptr;
  }
  return ext;
}

X509_EXTENSION *X509_CRL_delete_ext(X509_CRL *x, int loc) {
  return delete_ext(&x->crl->extensions, loc);
}

void *X509_CRL_get_ext_d2i(const X509_CRL *crl, int nid, int *out_critical,
                           int *out_idx) {
  return X509V3_get_d2i(crl->crl->extensions, nid, out_critical, out_idx);
}

int X509_CRL_add1_ext_i2d(X509_CRL *x, int nid, void *value, int crit,
                          unsigned long flags) {
  return X509V3_add1_i2d(&x->crl->extensions, nid, value, crit, flags);
}

int X509_CRL_add_ext(X509_CRL *x, const X509_EXTENSION *ex, int loc) {
  return X509v3_add_ext(&x->crl->extensions, ex, loc) != NULL;
}

int X509_get_ext_count(const X509 *x) {
  return X509v3_get_ext_count(x->cert_info->extensions);
}

int X509_get_ext_by_NID(const X509 *x, int nid, int lastpos) {
  return X509v3_get_ext_by_NID(x->cert_info->extensions, nid, lastpos);
}

int X509_get_ext_by_OBJ(const X509 *x, const ASN1_OBJECT *obj, int lastpos) {
  return X509v3_get_ext_by_OBJ(x->cert_info->extensions, obj, lastpos);
}

int X509_get_ext_by_critical(const X509 *x, int crit, int lastpos) {
  return X509v3_get_ext_by_critical(x->cert_info->extensions, crit, lastpos);
}

X509_EXTENSION *X509_get_ext(const X509 *x, int loc) {
  return X509v3_get_ext(x->cert_info->extensions, loc);
}

X509_EXTENSION *X509_delete_ext(X509 *x, int loc) {
  return delete_ext(&x->cert_info->extensions, loc);
}

int X509_add_ext(X509 *x, const X509_EXTENSION *ex, int loc) {
  return X509v3_add_ext(&x->cert_info->extensions, ex, loc) != NULL;
}

void *X509_get_ext_d2i(const X509 *x509, int nid, int *out_critical,
                       int *out_idx) {
  return X509V3_get_d2i(x509->cert_info->extensions, nid, out_critical,
                        out_idx);
}

int X509_add1_ext_i2d(X509 *x, int nid, void *value, int crit,
                      unsigned long flags) {
  return X509V3_add1_i2d(&x->cert_info->extensions, nid, value, crit, flags);
}

int X509_REVOKED_get_ext_count(const X509_REVOKED *x) {
  return X509v3_get_ext_count(x->extensions);
}

int X509_REVOKED_get_ext_by_NID(const X509_REVOKED *x, int nid, int lastpos) {
  return X509v3_get_ext_by_NID(x->extensions, nid, lastpos);
}

int X509_REVOKED_get_ext_by_OBJ(const X509_REVOKED *x, const ASN1_OBJECT *obj,
                                int lastpos) {
  return X509v3_get_ext_by_OBJ(x->extensions, obj, lastpos);
}

int X509_REVOKED_get_ext_by_critical(const X509_REVOKED *x, int crit,
                                     int lastpos) {
  return X509v3_get_ext_by_critical(x->extensions, crit, lastpos);
}

X509_EXTENSION *X509_REVOKED_get_ext(const X509_REVOKED *x, int loc) {
  return X509v3_get_ext(x->extensions, loc);
}

X509_EXTENSION *X509_REVOKED_delete_ext(X509_REVOKED *x, int loc) {
  return delete_ext(&x->extensions, loc);
}

int X509_REVOKED_add_ext(X509_REVOKED *x, const X509_EXTENSION *ex, int loc) {
  return X509v3_add_ext(&x->extensions, ex, loc) != NULL;
}

void *X509_REVOKED_get_ext_d2i(const X509_REVOKED *revoked, int nid,
                               int *out_critical, int *out_idx) {
  return X509V3_get_d2i(revoked->extensions, nid, out_critical, out_idx);
}

int X509_REVOKED_add1_ext_i2d(X509_REVOKED *x, int nid, void *value, int crit,
                              unsigned long flags) {
  return X509V3_add1_i2d(&x->extensions, nid, value, crit, flags);
}