* use f2b_cmd_check_argc() in f2b_cmsg_process()

src/CMakeLists.txt

@@ -3,7 +3,7 @@ set(CMAKE_INCLUDE_CURRENT_DIR ON)
 set(SOURCES "daemon.c" "strlcpy.c" "config.c" "log.c" "matches.c" "ipaddr.c" "source.c" "filter.c" "backend.c" "jail.c")
 
 if (WITH_CSOCKET)
-  list(APPEND SOURCES "csocket.c" "cmsg.c")
+  list(APPEND SOURCES "commands.c" "csocket.c" "cmsg.c")
   add_definitions("-DWITH_CSOCKET")
 endif ()
 

src/daemon.c

@@ -96,26 +96,20 @@ f2b_cmsg_process(const f2b_cmsg_t *msg, char *res, size_t ressize) {
     return;
 
   memset(args, 0x0, sizeof(args));
-  f2b_cmsg_extract_args(msg, args);
+  int argc = f2b_cmsg_extract_args(msg, args);
+
+  if (f2b_cmd_check_argc(msg->type, argc) == false) {
+    strlcpy(res, "cms args number mismatch", ressize);
+    return;
+  }
 
   if (msg->type >= CMD_JAIL_STATUS && msg->type <= CMD_MAX_NUMBER) {
-    if (args[0] == NULL) {
-      strlcpy(res, "can't find jail: no args\n", ressize);
-      return;
-    }
     if ((jail = f2b_jail_find(jails, args[0])) == NULL) {
       snprintf(res, ressize, "can't find jail '%s'\n", args[0]);
       return;
     }
   }
 
-  if (jail && (msg->type >= CMD_JAIL_IP_SHOW && msg->type <= CMD_JAIL_IP_RELEASE)) {
-    if (args[1] == NULL) {
-      strlcpy(res, "can't find ip: no args", ressize);
-      return;
-    }
-  }
-
   if (msg->type == CMD_PING) {
     strlcpy(res, "ok", ressize);
   } else if (msg->type == CMD_RELOAD) {