Fix threading issue that at best will leak memory

[openssl.git] / crypto / x509v3 / pcy_cache.c

diff --git a/crypto/x509v3/pcy_cache.c b/crypto/x509v3/pcy_cache.c
index 8e78011858daeefc5dbf69b2d03eb7b4b6e14cd2..a9ee30a8d9135636020d5cef7ee3e8e4f6818b09 100644 (file)
--- a/crypto/x509v3/pcy_cache.c
+++ b/crypto/x509v3/pcy_cache.c
@@ -1,65 +1,16 @@
-/* pcy_cache.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).
+ * Copyright 2004-2016 The OpenSSL Project Authors. All Rights Reserved.
  *
+ * Licensed under the OpenSSL license (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 "cryptlib.h"
+#include "internal/cryptlib.h"
 #include <openssl/x509.h>
 #include <openssl/x509v3.h>
+#include "internal/x509_int.h"
 
 #include "pcy_int.h"
 
@@ -83,12 +34,12 @@ static int policy_cache_create(X509 *x,
     if (sk_POLICYINFO_num(policies) == 0)
         goto bad_policy;
     cache->data = sk_X509_POLICY_DATA_new(policy_data_cmp);
-    if (!cache->data)
+    if (cache->data == NULL)
         goto bad_policy;
     for (i = 0; i < sk_POLICYINFO_num(policies); i++) {
         policy = sk_POLICYINFO_value(policies, i);
         data = policy_data_new(policy, NULL, crit);
-        if (!data)
+        if (data == NULL)
             goto bad_policy;
         /*
          * Duplicate policy OIDs are illegal: reject if matches found.
@@ -127,8 +78,11 @@ static int policy_cache_new(X509 *x)
     CERTIFICATEPOLICIES *ext_cpols = NULL;
     POLICY_MAPPINGS *ext_pmaps = NULL;
     int i;
+
+    if (x->policy_cache != NULL)
+        return 1;
     cache = OPENSSL_malloc(sizeof(*cache));
-    if (!cache)
+    if (cache == NULL)
         return 0;
     cache->anyPolicy = NULL;
     cache->data = NULL;
@@ -224,9 +178,9 @@ const X509_POLICY_CACHE *policy_cache_set(X509 *x)
 {
 
     if (x->policy_cache == NULL) {
-        CRYPTO_w_lock(CRYPTO_LOCK_X509);
+        CRYPTO_THREAD_write_lock(x->lock);
         policy_cache_new(x);
-        CRYPTO_w_unlock(CRYPTO_LOCK_X509);
+        CRYPTO_THREAD_unlock(x->lock);
     }
 
     return x->policy_cache;