Refactor code into utils, mfapi and mfshell

- utils is the low level library used by the others
 - mfapi uses utils and implements the api and some wrappers
 - mfshell uses mfapi and utils to provide a shell

mfapi/mfconn.h

@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2014 Johannes Schauer <j.schauer@email.de>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2, as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 51
+ * Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ */
+
+#ifndef __MFAPI_MFCONN_H__
+#define __MFAPI_MFCONN_H__
+
+#include <stdint.h>
+
+#include "file.h"
+
+typedef struct _mfconn_s mfconn_t;
+
+struct _mfconn_s;
+
+mfconn_t* mfconn_create(char *server, char *username, char *password, int app_id, char *app_key);
+
+void mfconn_destroy(mfconn_t *mfconn);
+
+ssize_t mfconn_download_direct(file_t *file,char *local_dir);
+
+char* mfconn_create_signed_get(mfconn_t *mfconn,int ssl,char *api,char *fmt,...);
+
+char* mfconn_create_user_signature(mfconn_t *mfconn, char *username,
+        char *password, int app_id, char *app_key);
+
+void mfconn_update_secret_key(mfconn_t *mfconn);
+
+const char* mfconn_get_session_token(mfconn_t *mfconn);
+
+const char* mfconn_get_secret_time(mfconn_t *mfconn);
+
+uint32_t mfconn_get_secret_key(mfconn_t *mfconn);
+#endif