components/openssl: add license header

components/openssl/library/ssl_cert.c

@@ -1,29 +1,68 @@
-#include "ssl_cert.h"
-#include "ssl_dbg.h"
-#include "ssl_pm.h"
+// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
 
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "ssl_cert.h"
+#include "ssl_pkey.h"
+#include "ssl_x509.h"
+#include "ssl_dbg.h"
+#include "ssl_port.h"
+
+/*
+ * ssl_cert_new - create a certification object include private key object
+ *
+ * @param none
+ *
+ * @return certification object point or NULL if failed
+ */
 CERT *ssl_cert_new(void)
 {
-    return ssl_zalloc(sizeof(CERT));
+    CERT *cert;
+
+    cert = ssl_zalloc(sizeof(CERT));
+    if (!cert)
+        SSL_RET(failed1, "ssl_zalloc\n");
+
+    cert->pkey = EVP_PKEY_new();
+    if (!cert->pkey)
+        SSL_RET(failed2, "EVP_PKEY_new\n");
+
+    cert->x509 = sk_X509_NAME_new_null();
+    if (!cert->x509)
+        SSL_RET(failed3, "sk_X509_NAME_new_null\n");
+
+    return cert;
+
+failed3:
+    EVP_PKEY_free(cert->pkey);
+failed2:
+    ssl_free(cert);
+failed1:
+    return NULL;
 }
 
+/*
+ * ssl_cert_free - free a certification object
+ *
+ * @param c - certification object point
+ *
+ * @return none
+ */
 void ssl_cert_free(CERT *c)
 {
-    if (c->x509)
-        X509_free(c->x509);
+    X509_free(c->x509);
 
-    if (c->pkey)
-        EVP_PKEY_free(c->pkey);
+    EVP_PKEY_free(c->pkey);
 
     ssl_free(c);
 }
-
-int SSL_CTX_add_client_CA(SSL_CTX *ctx, X509 *x)
-{
-    SSL_ASSERT(ctx);
-    SSL_ASSERT(x);
-
-    ctx->client_CA = x;
-
-    return 1;
-}