Allow NULL for some _free routines.

[openssl.git] / crypto / comp / comp_lib.c

diff --git a/crypto/comp/comp_lib.c b/crypto/comp/comp_lib.c
index 83fea93cb80d45f2508b03dcde1fc6d97f52955a..c199bb352f139f9a5768402cf9a07cdfd245b709 100644 (file)
--- a/crypto/comp/comp_lib.c
+++ b/crypto/comp/comp_lib.c
@@ -1,55 +1,10 @@
-/* ====================================================================
- * Copyright (c) 1999-2015 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
- *    openssl-core@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 1998-2016 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 <stdio.h>
@@ -64,13 +19,13 @@ COMP_CTX *COMP_CTX_new(COMP_METHOD *meth)
     COMP_CTX *ret;
 
     if ((ret = OPENSSL_zalloc(sizeof(*ret))) == NULL)
-        return (NULL);
+        return NULL;
     ret->meth = meth;
     if ((ret->meth->init != NULL) && !ret->meth->init(ret)) {
         OPENSSL_free(ret);
         ret = NULL;
     }
-    return (ret);
+    return ret;
 }
 
 const COMP_METHOD *COMP_CTX_get_method(const COMP_CTX *ctx)
@@ -92,7 +47,6 @@ void COMP_CTX_free(COMP_CTX *ctx)
 {
     if (ctx == NULL)
         return;
-
     if (ctx->meth->finish != NULL)
         ctx->meth->finish(ctx);
 
@@ -104,14 +58,14 @@ int COMP_compress_block(COMP_CTX *ctx, unsigned char *out, int olen,
 {
     int ret;
     if (ctx->meth->compress == NULL) {
-        return (-1);
+        return -1;
     }
     ret = ctx->meth->compress(ctx, out, olen, in, ilen);
     if (ret > 0) {
         ctx->compress_in += ilen;
         ctx->compress_out += ret;
     }
-    return (ret);
+    return ret;
 }
 
 int COMP_expand_block(COMP_CTX *ctx, unsigned char *out, int olen,
@@ -120,14 +74,14 @@ int COMP_expand_block(COMP_CTX *ctx, unsigned char *out, int olen,
     int ret;
 
     if (ctx->meth->expand == NULL) {
-        return (-1);
+        return -1;
     }
     ret = ctx->meth->expand(ctx, out, olen, in, ilen);
     if (ret > 0) {
         ctx->expand_in += ilen;
         ctx->expand_out += ret;
     }
-    return (ret);
+    return ret;
 }
 
 int COMP_CTX_get_type(const COMP_CTX* comp)