chromium/third_party/boringssl/src/crypto/x509/v3_lib.c

/*
 * Written by Dr Stephen N Henson ([email protected]) 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
 *    [email protected].
 *
 * 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
 * ([email protected]).  This product includes software written by Tim
 * Hudson ([email protected]).
 *
 */
/* X509 v3 extension utilities */

#include <assert.h>
#include <stdio.h>

#include <openssl/conf.h>
#include <openssl/err.h>
#include <openssl/mem.h>
#include <openssl/obj.h>
#include <openssl/x509.h>

#include "internal.h"

#include "ext_dat.h"

DEFINE_STACK_OF(…)

static STACK_OF(X509V3_EXT_METHOD) *ext_list = …;

static int ext_stack_cmp(const X509V3_EXT_METHOD *const *a,
                         const X509V3_EXT_METHOD *const *b) { … }

int X509V3_EXT_add(X509V3_EXT_METHOD *ext) { … }

static int ext_cmp(const void *void_a, const void *void_b) { … }

const X509V3_EXT_METHOD *X509V3_EXT_get_nid(int nid) { … }

const X509V3_EXT_METHOD *X509V3_EXT_get(const X509_EXTENSION *ext) { … }

int X509V3_EXT_free(int nid, void *ext_data) { … }

int X509V3_EXT_add_alias(int nid_to, int nid_from) { … }

// Legacy function: we don't need to add standard extensions any more because
// they are now kept in ext_dat.h.

int X509V3_add_standard_extensions(void) { … }

// Return an extension internal structure

void *X509V3_EXT_d2i(const X509_EXTENSION *ext) { … }

void *X509V3_get_d2i(const STACK_OF(X509_EXTENSION) *extensions, int nid,
                     int *out_critical, int *out_idx) { … }

// This function is a general extension append, replace and delete utility.
// The precise operation is governed by the 'flags' value. The 'crit' and
// 'value' arguments (if relevant) are the extensions internal structure.

int X509V3_add1_i2d(STACK_OF(X509_EXTENSION) **x, int nid, void *value,
                    int crit, unsigned long flags) { … }