Refactor main() into more functions and convert #ifdef hell into plugins.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>

plugin.h

@@ -1,18 +1,24 @@
-/* Plugin framework
+/* Plugin based services architecture for finit
  *
  * Copyright (c) 2012  Joachim Nilsson <troglobit@gmail.com>
  *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
  *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
  */
 
 #ifndef PLUGIN_H_
@@ -20,7 +26,6 @@
 
 #include <sys/queue.h>		/* BSD sys/queue.h API */
 
-#define __unused __attribute__ ((unused))
 #define PLUGIN_INIT(x) void x(void) __attribute__ ((constructor));
 #define PLUGIN_EXIT(x) void x(void) __attribute__ ((destructor));
 
@@ -32,8 +37,10 @@
 typedef enum {
 	HOOK_POST_LOAD = 0,
 	HOOK_PRE_SETUP,
+	HOOK_POST_SIGSETUP,
+	HOOK_POST_NETWORK,
 	HOOK_PRE_RUNLOOP,
-	HOOK_EXIT_CLEANUP,
+	HOOK_SHUTDOWN,
 	HOOK_MAX_NUM
 } hook_point_t;
 
@@ -64,7 +71,7 @@ int plugin_unregister (plugin_t *plugin);
 /* Private daemon API */
 void run_hooks        (hook_point_t no);
 void run_services     (void);
-int  load_plugins     (void);
+int  load_plugins     (char *path);
 
 #endif	/* PLUGIN_H_ */