Deleting OpenSSL module and library

1 files changed, 0 insertions, 835 deletions

diff --git a/thirdparty/openssl/crypto/x509v3/pcy_tree.c b/thirdparty/openssl/crypto/x509v3/pcy_tree.c
deleted file mode 100644
index 03c9533bcc..0000000000
--- a/thirdparty/openssl/crypto/x509v3/pcy_tree.c
+++ /dev/null
@@ -1,835 +0,0 @@
-/* pcy_tree.c */
-/*
- * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
- * 2004.
- */
-/* ====================================================================
- * Copyright (c) 2004 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 "cryptlib.h"
-#include <openssl/x509.h>
-#include <openssl/x509v3.h>
-
-#include "pcy_int.h"
-
-/*
- * Enable this to print out the complete policy tree at various point during
- * evaluation.
- */
-
-/*
- * #define OPENSSL_POLICY_DEBUG
- */
-
-#ifdef OPENSSL_POLICY_DEBUG
-
-static void expected_print(BIO *err, X509_POLICY_LEVEL *lev,
-                           X509_POLICY_NODE *node, int indent)
-{
-    if ((lev->flags & X509_V_FLAG_INHIBIT_MAP)
-        || !(node->data->flags & POLICY_DATA_FLAG_MAP_MASK))
-        BIO_puts(err, "  Not Mapped\n");
-    else {
-        int i;
-        STACK_OF(ASN1_OBJECT) *pset = node->data->expected_policy_set;
-        ASN1_OBJECT *oid;
-        BIO_puts(err, "  Expected: ");
-        for (i = 0; i < sk_ASN1_OBJECT_num(pset); i++) {
-            oid = sk_ASN1_OBJECT_value(pset, i);
-            if (i)
-                BIO_puts(err, ", ");
-            i2a_ASN1_OBJECT(err, oid);
-        }
-        BIO_puts(err, "\n");
-    }
-}
-
-static void tree_print(char *str, X509_POLICY_TREE *tree,
-                       X509_POLICY_LEVEL *curr)
-{
-    X509_POLICY_LEVEL *plev;
-    X509_POLICY_NODE *node;
-    int i;
-    BIO *err;
-    err = BIO_new_fp(stderr, BIO_NOCLOSE);
-    if (!curr)
-        curr = tree->levels + tree->nlevel;
-    else
-        curr++;
-    BIO_printf(err, "Level print after %s\n", str);
-    BIO_printf(err, "Printing Up to Level %ld\n", curr - tree->levels);
-    for (plev = tree->levels; plev != curr; plev++) {
-        BIO_printf(err, "Level %ld, flags = %x\n",
-                   plev - tree->levels, plev->flags);
-        for (i = 0; i < sk_X509_POLICY_NODE_num(plev->nodes); i++) {
-            node = sk_X509_POLICY_NODE_value(plev->nodes, i);
-            X509_POLICY_NODE_print(err, node, 2);
-            expected_print(err, plev, node, 2);
-            BIO_printf(err, "  Flags: %x\n", node->data->flags);
-        }
-        if (plev->anyPolicy)
-            X509_POLICY_NODE_print(err, plev->anyPolicy, 2);
-    }
-
-    BIO_free(err);
-
-}
-#else
-
-# define tree_print(a,b,c)      /* */
-
-#endif
-
-/*-
- * Initialize policy tree. Return values:
- *  0 Some internal error occurred.
- * -1 Inconsistent or invalid extensions in certificates.
- *  1 Tree initialized OK.
- *  2 Policy tree is empty.
- *  5 Tree OK and requireExplicitPolicy true.
- *  6 Tree empty and requireExplicitPolicy true.
- */
-
-static int tree_init(X509_POLICY_TREE **ptree, STACK_OF(X509) *certs,
-                     unsigned int flags)
-{
-    X509_POLICY_TREE *tree;
-    X509_POLICY_LEVEL *level;
-    const X509_POLICY_CACHE *cache;
-    X509_POLICY_DATA *data = NULL;
-    X509 *x;
-    int ret = 1;
-    int i, n;
-    int explicit_policy;
-    int any_skip;
-    int map_skip;
-    *ptree = NULL;
-    n = sk_X509_num(certs);
-
-#if 0
-    /* Disable policy mapping for now... */
-    flags |= X509_V_FLAG_INHIBIT_MAP;
-#endif
-
-    if (flags & X509_V_FLAG_EXPLICIT_POLICY)
-        explicit_policy = 0;
-    else
-        explicit_policy = n + 1;
-
-    if (flags & X509_V_FLAG_INHIBIT_ANY)
-        any_skip = 0;
-    else
-        any_skip = n + 1;
-
-    if (flags & X509_V_FLAG_INHIBIT_MAP)
-        map_skip = 0;
-    else
-        map_skip = n + 1;
-
-    /* Can't do anything with just a trust anchor */
-    if (n == 1)
-        return 1;
-    /*
-     * First setup policy cache in all certificates apart from the trust
-     * anchor. Note any bad cache results on the way. Also can calculate
-     * explicit_policy value at this point.
-     */
-    for (i = n - 2; i >= 0; i--) {
-        x = sk_X509_value(certs, i);
-        X509_check_purpose(x, -1, -1);
-        cache = policy_cache_set(x);
-        /* If cache NULL something bad happened: return immediately */
-        if (cache == NULL)
-            return 0;
-        /*
-         * If inconsistent extensions keep a note of it but continue
-         */
-        if (x->ex_flags & EXFLAG_INVALID_POLICY)
-            ret = -1;
-        /*
-         * Otherwise if we have no data (hence no CertificatePolicies) and
-         * haven't already set an inconsistent code note it.
-         */
-        else if ((ret == 1) && !cache->data)
-            ret = 2;
-        if (explicit_policy > 0) {
-            if (!(x->ex_flags & EXFLAG_SI))
-                explicit_policy--;
-            if ((cache->explicit_skip != -1)
-                && (cache->explicit_skip < explicit_policy))
-                explicit_policy = cache->explicit_skip;
-        }
-    }
-
-    if (ret != 1) {
-        if (ret == 2 && !explicit_policy)
-            return 6;
-        return ret;
-    }
-
-    /* If we get this far initialize the tree */
-
-    tree = OPENSSL_malloc(sizeof(X509_POLICY_TREE));
-
-    if (!tree)
-        return 0;
-
-    tree->flags = 0;
-    tree->levels = OPENSSL_malloc(sizeof(X509_POLICY_LEVEL) * n);
-    tree->nlevel = 0;
-    tree->extra_data = NULL;
-    tree->auth_policies = NULL;
-    tree->user_policies = NULL;
-
-    if (!tree->levels) {
-        OPENSSL_free(tree);
-        return 0;
-    }
-
-    memset(tree->levels, 0, n * sizeof(X509_POLICY_LEVEL));
-
-    tree->nlevel = n;
-
-    level = tree->levels;
-
-    /* Root data: initialize to anyPolicy */
-
-    data = policy_data_new(NULL, OBJ_nid2obj(NID_any_policy), 0);
-
-    if (!data || !level_add_node(level, data, NULL, tree))
-        goto bad_tree;
-
-    for (i = n - 2; i >= 0; i--) {
-        level++;
-        x = sk_X509_value(certs, i);
-        cache = policy_cache_set(x);
-        CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509);
-        level->cert = x;
-
-        if (!cache->anyPolicy)
-            level->flags |= X509_V_FLAG_INHIBIT_ANY;
-
-        /* Determine inhibit any and inhibit map flags */
-        if (any_skip == 0) {
-            /*
-             * Any matching allowed if certificate is self issued and not the
-             * last in the chain.
-             */
-            if (!(x->ex_flags & EXFLAG_SI) || (i == 0))
-                level->flags |= X509_V_FLAG_INHIBIT_ANY;
-        } else {
-            if (!(x->ex_flags & EXFLAG_SI))
-                any_skip--;
-            if ((cache->any_skip >= 0)
-                && (cache->any_skip < any_skip))
-                any_skip = cache->any_skip;
-        }
-
-        if (map_skip == 0)
-            level->flags |= X509_V_FLAG_INHIBIT_MAP;
-        else {
-            if (!(x->ex_flags & EXFLAG_SI))
-                map_skip--;
-            if ((cache->map_skip >= 0)
-                && (cache->map_skip < map_skip))
-                map_skip = cache->map_skip;
-        }
-
-    }
-
-    *ptree = tree;
-
-    if (explicit_policy)
-        return 1;
-    else
-        return 5;
-
- bad_tree:
-
-    X509_policy_tree_free(tree);
-
-    return 0;
-
-}
-
-static int tree_link_matching_nodes(X509_POLICY_LEVEL *curr,
-                                    const X509_POLICY_DATA *data)
-{
-    X509_POLICY_LEVEL *last = curr - 1;
-    X509_POLICY_NODE *node;
-    int i, matched = 0;
-    /* Iterate through all in nodes linking matches */
-    for (i = 0; i < sk_X509_POLICY_NODE_num(last->nodes); i++) {
-        node = sk_X509_POLICY_NODE_value(last->nodes, i);
-        if (policy_node_match(last, node, data->valid_policy)) {
-            if (!level_add_node(curr, data, node, NULL))
-                return 0;
-            matched = 1;
-        }
-    }
-    if (!matched && last->anyPolicy) {
-        if (!level_add_node(curr, data, last->anyPolicy, NULL))
-            return 0;
-    }
-    return 1;
-}
-
-/*
- * This corresponds to RFC3280 6.1.3(d)(1): link any data from
- * CertificatePolicies onto matching parent or anyPolicy if no match.
- */
-
-static int tree_link_nodes(X509_POLICY_LEVEL *curr,
-                           const X509_POLICY_CACHE *cache)
-{
-    int i;
-    X509_POLICY_DATA *data;
-
-    for (i = 0; i < sk_X509_POLICY_DATA_num(cache->data); i++) {
-        data = sk_X509_POLICY_DATA_value(cache->data, i);
-        /*
-         * If a node is mapped any it doesn't have a corresponding
-         * CertificatePolicies entry. However such an identical node would
-         * be created if anyPolicy matching is enabled because there would be
-         * no match with the parent valid_policy_set. So we create link
-         * because then it will have the mapping flags right and we can prune
-         * it later.
-         */
-#if 0
-        if ((data->flags & POLICY_DATA_FLAG_MAPPED_ANY)
-            && !(curr->flags & X509_V_FLAG_INHIBIT_ANY))
-            continue;
-#endif
-        /* Look for matching nodes in previous level */
-        if (!tree_link_matching_nodes(curr, data))
-            return 0;
-    }
-    return 1;
-}
-
-/*
- * This corresponds to RFC3280 6.1.3(d)(2): Create new data for any unmatched
- * policies in the parent and link to anyPolicy.
- */
-
-static int tree_add_unmatched(X509_POLICY_LEVEL *curr,
-                              const X509_POLICY_CACHE *cache,
-                              const ASN1_OBJECT *id,
-                              X509_POLICY_NODE *node, X509_POLICY_TREE *tree)
-{
-    X509_POLICY_DATA *data;
-    if (id == NULL)
-        id = node->data->valid_policy;
-    /*
-     * Create a new node with qualifiers from anyPolicy and id from unmatched
-     * node.
-     */
-    data = policy_data_new(NULL, id, node_critical(node));
-
-    if (data == NULL)
-        return 0;
-    /* Curr may not have anyPolicy */
-    data->qualifier_set = cache->anyPolicy->qualifier_set;
-    data->flags |= POLICY_DATA_FLAG_SHARED_QUALIFIERS;
-    if (!level_add_node(curr, data, node, tree)) {
-        policy_data_free(data);
-        return 0;
-    }
-
-    return 1;
-}
-
-static int tree_link_unmatched(X509_POLICY_LEVEL *curr,
-                               const X509_POLICY_CACHE *cache,
-                               X509_POLICY_NODE *node, X509_POLICY_TREE *tree)
-{
-    const X509_POLICY_LEVEL *last = curr - 1;
-    int i;
-
-    if ((last->flags & X509_V_FLAG_INHIBIT_MAP)
-        || !(node->data->flags & POLICY_DATA_FLAG_MAPPED)) {
-        /* If no policy mapping: matched if one child present */
-        if (node->nchild)
-            return 1;
-        if (!tree_add_unmatched(curr, cache, NULL, node, tree))
-            return 0;
-        /* Add it */
-    } else {
-        /* If mapping: matched if one child per expected policy set */
-        STACK_OF(ASN1_OBJECT) *expset = node->data->expected_policy_set;
-        if (node->nchild == sk_ASN1_OBJECT_num(expset))
-            return 1;
-        /* Locate unmatched nodes */
-        for (i = 0; i < sk_ASN1_OBJECT_num(expset); i++) {
-            ASN1_OBJECT *oid = sk_ASN1_OBJECT_value(expset, i);
-            if (level_find_node(curr, node, oid))
-                continue;
-            if (!tree_add_unmatched(curr, cache, oid, node, tree))
-                return 0;
-        }
-
-    }
-
-    return 1;
-
-}
-
-static int tree_link_any(X509_POLICY_LEVEL *curr,
-                         const X509_POLICY_CACHE *cache,
-                         X509_POLICY_TREE *tree)
-{
-    int i;
-    /*
-     * X509_POLICY_DATA *data;
-     */
-    X509_POLICY_NODE *node;
-    X509_POLICY_LEVEL *last = curr - 1;
-
-    for (i = 0; i < sk_X509_POLICY_NODE_num(last->nodes); i++) {
-        node = sk_X509_POLICY_NODE_value(last->nodes, i);
-
-        if (!tree_link_unmatched(curr, cache, node, tree))
-            return 0;
-
-#if 0
-
-        /*
-         * Skip any node with any children: we only want unmathced nodes.
-         * Note: need something better for policy mapping because each node
-         * may have multiple children
-         */
-        if (node->nchild)
-            continue;
-
-        /*
-         * Create a new node with qualifiers from anyPolicy and id from
-         * unmatched node.
-         */
-        data = policy_data_new(NULL, node->data->valid_policy,
-                               node_critical(node));
-
-        if (data == NULL)
-            return 0;
-        /* Curr may not have anyPolicy */
-        data->qualifier_set = cache->anyPolicy->qualifier_set;
-        data->flags |= POLICY_DATA_FLAG_SHARED_QUALIFIERS;
-        if (!level_add_node(curr, data, node, tree)) {
-            policy_data_free(data);
-            return 0;
-        }
-#endif
-
-    }
-    /* Finally add link to anyPolicy */
-    if (last->anyPolicy) {
-        if (!level_add_node(curr, cache->anyPolicy, last->anyPolicy, NULL))
-            return 0;
-    }
-    return 1;
-}
-
-/*
- * Prune the tree: delete any child mapped child data on the current level
- * then proceed up the tree deleting any data with no children. If we ever
- * have no data on a level we can halt because the tree will be empty.
- */
-
-static int tree_prune(X509_POLICY_TREE *tree, X509_POLICY_LEVEL *curr)
-{
-    STACK_OF(X509_POLICY_NODE) *nodes;
-    X509_POLICY_NODE *node;
-    int i;
-    nodes = curr->nodes;
-    if (curr->flags & X509_V_FLAG_INHIBIT_MAP) {
-        for (i = sk_X509_POLICY_NODE_num(nodes) - 1; i >= 0; i--) {
-            node = sk_X509_POLICY_NODE_value(nodes, i);
-            /* Delete any mapped data: see RFC3280 XXXX */
-            if (node->data->flags & POLICY_DATA_FLAG_MAP_MASK) {
-                node->parent->nchild--;
-                OPENSSL_free(node);
-                (void)sk_X509_POLICY_NODE_delete(nodes, i);
-            }
-        }
-    }
-
-    for (;;) {
-        --curr;
-        nodes = curr->nodes;
-        for (i = sk_X509_POLICY_NODE_num(nodes) - 1; i >= 0; i--) {
-            node = sk_X509_POLICY_NODE_value(nodes, i);
-            if (node->nchild == 0) {
-                node->parent->nchild--;
-                OPENSSL_free(node);
-                (void)sk_X509_POLICY_NODE_delete(nodes, i);
-            }
-        }
-        if (curr->anyPolicy && !curr->anyPolicy->nchild) {
-            if (curr->anyPolicy->parent)
-                curr->anyPolicy->parent->nchild--;
-            OPENSSL_free(curr->anyPolicy);
-            curr->anyPolicy = NULL;
-        }
-        if (curr == tree->levels) {
-            /* If we zapped anyPolicy at top then tree is empty */
-            if (!curr->anyPolicy)
-                return 2;
-            return 1;
-        }
-    }
-
-    return 1;
-
-}
-
-static int tree_add_auth_node(STACK_OF(X509_POLICY_NODE) **pnodes,
-                              X509_POLICY_NODE *pcy)
-{
-    if (!*pnodes) {
-        *pnodes = policy_node_cmp_new();
-        if (!*pnodes)
-            return 0;
-    } else if (sk_X509_POLICY_NODE_find(*pnodes, pcy) != -1)
-        return 1;
-
-    if (!sk_X509_POLICY_NODE_push(*pnodes, pcy))
-        return 0;
-
-    return 1;
-
-}
-
-/*
- * Calculate the authority set based on policy tree. The 'pnodes' parameter
- * is used as a store for the set of policy nodes used to calculate the user
- * set. If the authority set is not anyPolicy then pnodes will just point to
- * the authority set. If however the authority set is anyPolicy then the set
- * of valid policies (other than anyPolicy) is store in pnodes. The return
- * value of '2' is used in this case to indicate that pnodes should be freed.
- */
-
-static int tree_calculate_authority_set(X509_POLICY_TREE *tree,
-                                        STACK_OF(X509_POLICY_NODE) **pnodes)
-{
-    X509_POLICY_LEVEL *curr;
-    X509_POLICY_NODE *node, *anyptr;
-    STACK_OF(X509_POLICY_NODE) **addnodes;
-    int i, j;
-    curr = tree->levels + tree->nlevel - 1;
-
-    /* If last level contains anyPolicy set is anyPolicy */
-    if (curr->anyPolicy) {
-        if (!tree_add_auth_node(&tree->auth_policies, curr->anyPolicy))
-            return 0;
-        addnodes = pnodes;
-    } else
-        /* Add policies to authority set */
-        addnodes = &tree->auth_policies;
-
-    curr = tree->levels;
-    for (i = 1; i < tree->nlevel; i++) {
-        /*
-         * If no anyPolicy node on this this level it can't appear on lower
-         * levels so end search.
-         */
-        if (!(anyptr = curr->anyPolicy))
-            break;
-        curr++;
-        for (j = 0; j < sk_X509_POLICY_NODE_num(curr->nodes); j++) {
-            node = sk_X509_POLICY_NODE_value(curr->nodes, j);
-            if ((node->parent == anyptr)
-                && !tree_add_auth_node(addnodes, node))
-                return 0;
-        }
-    }
-
-    if (addnodes == pnodes)
-        return 2;
-
-    *pnodes = tree->auth_policies;
-
-    return 1;
-}
-
-static int tree_calculate_user_set(X509_POLICY_TREE *tree,
-                                   STACK_OF(ASN1_OBJECT) *policy_oids,
-                                   STACK_OF(X509_POLICY_NODE) *auth_nodes)
-{
-    int i;
-    X509_POLICY_NODE *node;
-    ASN1_OBJECT *oid;
-
-    X509_POLICY_NODE *anyPolicy;
-    X509_POLICY_DATA *extra;
-
-    /*
-     * Check if anyPolicy present in authority constrained policy set: this
-     * will happen if it is a leaf node.
-     */
-
-    if (sk_ASN1_OBJECT_num(policy_oids) <= 0)
-        return 1;
-
-    anyPolicy = tree->levels[tree->nlevel - 1].anyPolicy;
-
-    for (i = 0; i < sk_ASN1_OBJECT_num(policy_oids); i++) {
-        oid = sk_ASN1_OBJECT_value(policy_oids, i);
-        if (OBJ_obj2nid(oid) == NID_any_policy) {
-            tree->flags |= POLICY_FLAG_ANY_POLICY;
-            return 1;
-        }
-    }
-
-    for (i = 0; i < sk_ASN1_OBJECT_num(policy_oids); i++) {
-        oid = sk_ASN1_OBJECT_value(policy_oids, i);
-        node = tree_find_sk(auth_nodes, oid);
-        if (!node) {
-            if (!anyPolicy)
-                continue;
-            /*
-             * Create a new node with policy ID from user set and qualifiers
-             * from anyPolicy.
-             */
-            extra = policy_data_new(NULL, oid, node_critical(anyPolicy));
-            if (!extra)
-                return 0;
-            extra->qualifier_set = anyPolicy->data->qualifier_set;
-            extra->flags = POLICY_DATA_FLAG_SHARED_QUALIFIERS
-                | POLICY_DATA_FLAG_EXTRA_NODE;
-            node = level_add_node(NULL, extra, anyPolicy->parent, tree);
-        }
-        if (!tree->user_policies) {
-            tree->user_policies = sk_X509_POLICY_NODE_new_null();
-            if (!tree->user_policies)
-                return 1;
-        }
-        if (!sk_X509_POLICY_NODE_push(tree->user_policies, node))
-            return 0;
-    }
-    return 1;
-
-}
-
-static int tree_evaluate(X509_POLICY_TREE *tree)
-{
-    int ret, i;
-    X509_POLICY_LEVEL *curr = tree->levels + 1;
-    const X509_POLICY_CACHE *cache;
-
-    for (i = 1; i < tree->nlevel; i++, curr++) {
-        cache = policy_cache_set(curr->cert);
-        if (!tree_link_nodes(curr, cache))
-            return 0;
-
-        if (!(curr->flags & X509_V_FLAG_INHIBIT_ANY)
-            && !tree_link_any(curr, cache, tree))
-            return 0;
-        tree_print("before tree_prune()", tree, curr);
-        ret = tree_prune(tree, curr);
-        if (ret != 1)
-            return ret;
-    }
-
-    return 1;
-
-}
-
-static void exnode_free(X509_POLICY_NODE *node)
-{
-    if (node->data && (node->data->flags & POLICY_DATA_FLAG_EXTRA_NODE))
-        OPENSSL_free(node);
-}
-
-void X509_policy_tree_free(X509_POLICY_TREE *tree)
-{
-    X509_POLICY_LEVEL *curr;
-    int i;
-
-    if (!tree)
-        return;
-
-    sk_X509_POLICY_NODE_free(tree->auth_policies);
-    sk_X509_POLICY_NODE_pop_free(tree->user_policies, exnode_free);
-
-    for (i = 0, curr = tree->levels; i < tree->nlevel; i++, curr++) {
-        if (curr->cert)
-            X509_free(curr->cert);
-        if (curr->nodes)
-            sk_X509_POLICY_NODE_pop_free(curr->nodes, policy_node_free);
-        if (curr->anyPolicy)
-            policy_node_free(curr->anyPolicy);
-    }
-
-    if (tree->extra_data)
-        sk_X509_POLICY_DATA_pop_free(tree->extra_data, policy_data_free);
-
-    OPENSSL_free(tree->levels);
-    OPENSSL_free(tree);
-
-}
-
-/*-
- * Application policy checking function.
- * Return codes:
- *  0   Internal Error.
- *  1   Successful.
- * -1   One or more certificates contain invalid or inconsistent extensions
- * -2   User constrained policy set empty and requireExplicit true.
- */
-
-int X509_policy_check(X509_POLICY_TREE **ptree, int *pexplicit_policy,
-                      STACK_OF(X509) *certs,
-                      STACK_OF(ASN1_OBJECT) *policy_oids, unsigned int flags)
-{
-    int ret;
-    int calc_ret;
-    X509_POLICY_TREE *tree = NULL;
-    STACK_OF(X509_POLICY_NODE) *nodes, *auth_nodes = NULL;
-    *ptree = NULL;
-
-    *pexplicit_policy = 0;
-    ret = tree_init(&tree, certs, flags);
-
-    switch (ret) {
-
-        /* Tree empty requireExplicit False: OK */
-    case 2:
-        return 1;
-
-        /* Some internal error */
-    case -1:
-        return -1;
-
-        /* Some internal error */
-    case 0:
-        return 0;
-
-        /* Tree empty requireExplicit True: Error */
-
-    case 6:
-        *pexplicit_policy = 1;
-        return -2;
-
-        /* Tree OK requireExplicit True: OK and continue */
-    case 5:
-        *pexplicit_policy = 1;
-        break;
-
-        /* Tree OK: continue */
-
-    case 1:
-        if (!tree)
-            /*
-             * tree_init() returns success and a null tree
-             * if it's just looking at a trust anchor.
-             * I'm not sure that returning success here is
-             * correct, but I'm sure that reporting this
-             * as an internal error which our caller
-             * interprets as a malloc failure is wrong.
-             */
-            return 1;
-        break;
-    }
-
-    if (!tree)
-        goto error;
-    ret = tree_evaluate(tree);
-
-    tree_print("tree_evaluate()", tree, NULL);
-
-    if (ret <= 0)
-        goto error;
-
-    /* Return value 2 means tree empty */
-    if (ret == 2) {
-        X509_policy_tree_free(tree);
-        if (*pexplicit_policy)
-            return -2;
-        else
-            return 1;
-    }
-
-    /* Tree is not empty: continue */
-
-    calc_ret = tree_calculate_authority_set(tree, &auth_nodes);
-
-    if (!calc_ret)
-        goto error;
-
-    ret = tree_calculate_user_set(tree, policy_oids, auth_nodes);
-
-    if (calc_ret == 2)
-        sk_X509_POLICY_NODE_free(auth_nodes);
-
-    if (!ret)
-        goto error;
-
-
-    if (tree)
-        *ptree = tree;
-
-    if (*pexplicit_policy) {
-        nodes = X509_policy_tree_get0_user_policies(tree);
-        if (sk_X509_POLICY_NODE_num(nodes) <= 0)
-            return -2;
-    }
-
-    return 1;
-
- error:
-
-    X509_policy_tree_free(tree);
-
-    return 0;
-
-}