move base64 functions to base64.c

common/base64.h

@@ -0,0 +1,31 @@
+/**
+ * xrdp: A Remote Desktop Protocol server.
+ *
+ * Copyright (C) Koichiro Iwao 2017
+ *
+ * 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.
+ *
+ * Base64 encoder / decoder
+ */
+
+#if !defined(SSL_CALLS_H)
+#define SSL_CALLS_H
+
+#include "arch.h"
+
+size_t
+base64_decoded_bytes(const char *src);
+char *
+base64_decode(char *dst, const char *src, size_t len);
+
+#endif