X-Git-Url: https://git.openssl.org/?a=blobdiff_plain;f=crypto%2Fcomp%2Fcomp_lib.c;h=83fea93cb80d45f2508b03dcde1fc6d97f52955a;hb=aeb5b95576025d651c4941e7a5c157351094de84;hp=42d99364a9641436335c4454261bfed6844e63d3;hpb=16f8d4ebf0fd4847fa83d9c61f4150273cb4f533;p=openssl.git

diff --git a/crypto/comp/comp_lib.c b/crypto/comp/comp_lib.c
index 42d99364a9..83fea93cb8 100644
--- a/crypto/comp/comp_lib.c
+++ b/crypto/comp/comp_lib.c
@@ -1,18 +1,70 @@
+/* ====================================================================
+ * 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).
+ *
+ */
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <openssl/objects.h>
 #include <openssl/comp.h>
+#include "comp_lcl.h"
 
 COMP_CTX *COMP_CTX_new(COMP_METHOD *meth)
 {
     COMP_CTX *ret;
 
-    if ((ret = OPENSSL_malloc(sizeof(*ret))) == NULL) {
-        /* ZZZZZZZZZZZZZZZZ */
+    if ((ret = OPENSSL_zalloc(sizeof(*ret))) == NULL)
         return (NULL);
-    }
-    memset(ret, 0, sizeof(*ret));
     ret->meth = meth;
     if ((ret->meth->init != NULL) && !ret->meth->init(ret)) {
         OPENSSL_free(ret);
@@ -21,6 +73,21 @@ COMP_CTX *COMP_CTX_new(COMP_METHOD *meth)
     return (ret);
 }
 
+const COMP_METHOD *COMP_CTX_get_method(const COMP_CTX *ctx)
+{
+    return ctx->meth;
+}
+
+int COMP_get_type(const COMP_METHOD *meth)
+{
+    return meth->type;
+}
+
+const char *COMP_get_name(const COMP_METHOD *meth)
+{
+    return meth->name;
+}
+
 void COMP_CTX_free(COMP_CTX *ctx)
 {
     if (ctx == NULL)
@@ -37,7 +104,6 @@ int COMP_compress_block(COMP_CTX *ctx, unsigned char *out, int olen,
 {
     int ret;
     if (ctx->meth->compress == NULL) {
-        /* ZZZZZZZZZZZZZZZZZ */
         return (-1);
     }
     ret = ctx->meth->compress(ctx, out, olen, in, ilen);
@@ -54,7 +120,6 @@ int COMP_expand_block(COMP_CTX *ctx, unsigned char *out, int olen,
     int ret;
 
     if (ctx->meth->expand == NULL) {
-        /* ZZZZZZZZZZZZZZZZZ */
         return (-1);
     }
     ret = ctx->meth->expand(ctx, out, olen, in, ilen);
@@ -64,3 +129,8 @@ int COMP_expand_block(COMP_CTX *ctx, unsigned char *out, int olen,
     }
     return (ret);
 }
+
+int COMP_CTX_get_type(const COMP_CTX* comp)
+{
+    return comp->meth ? comp->meth->type : NID_undef;
+}