* draft for source library api

src/sources/source.h

@@ -0,0 +1,20 @@
+/* Copyright 2016 Alex 'AdUser' Z (ad_user@runbox.com)
+ *
+ * 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.
+ */
+#include <stdbool.h>
+
+#define INIT_MAX 256
+
+typedef struct _config cfg_t;
+
+extern cfg_t *create(const char *init);
+extern bool   config(cfg_t *c, const char *key, const char *value);
+extern bool    ready(cfg_t *c);
+extern char   *error(cfg_t *c);
+extern bool    start(cfg_t *c);
+extern bool     stop(cfg_t *c);
+extern bool     next(cfg_t *c, char *buf, size_t bufsize, bool reset);
+extern void  destroy(cfg_t *c);