confile: add clearer for lxc.hook{.*}

src/lxc/confile.c

@@ -149,6 +149,7 @@ static int clr_config_utsname(const char *, struct lxc_conf *);
 
 static int set_config_hooks(const char *, const char *, struct lxc_conf *lxc_conf);
 static int get_config_hooks(const char *, char *, int, struct lxc_conf *);
+static int clr_config_hooks(const char *, struct lxc_conf *);
 
 static int set_config_network(const char *, const char *, struct lxc_conf *);
 static int get_config_network(const char *, char *, int, struct lxc_conf *);
@@ -255,16 +256,16 @@ static struct lxc_config_t config[] = {
 	{ "lxc.rootfs",               set_config_rootfs,               get_config_rootfs,            clr_config_rootfs,            },
 	{ "lxc.pivotdir",             set_config_pivotdir,             get_config_pivotdir,          clr_config_pivotdir,          },
 	{ "lxc.utsname",              set_config_utsname,              get_config_utsname,           clr_config_utsname,           },
-	{ "lxc.hook.pre-start",       set_config_hooks,                get_config_hooks,             NULL },
-	{ "lxc.hook.pre-mount",       set_config_hooks,                get_config_hooks,             NULL },
-	{ "lxc.hook.mount",           set_config_hooks,                get_config_hooks,             NULL },
-	{ "lxc.hook.autodev",         set_config_hooks,                get_config_hooks,             NULL },
-	{ "lxc.hook.start",           set_config_hooks,                get_config_hooks,             NULL },
-	{ "lxc.hook.stop",            set_config_hooks,                get_config_hooks,             NULL },
-	{ "lxc.hook.post-stop",       set_config_hooks,                get_config_hooks,             NULL },
-	{ "lxc.hook.clone",           set_config_hooks,                get_config_hooks,             NULL },
-	{ "lxc.hook.destroy",         set_config_hooks,                get_config_hooks,             NULL },
-	{ "lxc.hook",                 set_config_hooks,                get_config_hooks,             NULL },
+	{ "lxc.hook.pre-start",       set_config_hooks,                get_config_hooks,             clr_config_hooks,             },
+	{ "lxc.hook.pre-mount",       set_config_hooks,                get_config_hooks,             clr_config_hooks,             },
+	{ "lxc.hook.mount",           set_config_hooks,                get_config_hooks,             clr_config_hooks,             },
+	{ "lxc.hook.autodev",         set_config_hooks,                get_config_hooks,             clr_config_hooks,             },
+	{ "lxc.hook.start",           set_config_hooks,                get_config_hooks,             clr_config_hooks,             },
+	{ "lxc.hook.stop",            set_config_hooks,                get_config_hooks,             clr_config_hooks,             },
+	{ "lxc.hook.post-stop",       set_config_hooks,                get_config_hooks,             clr_config_hooks,             },
+	{ "lxc.hook.clone",           set_config_hooks,                get_config_hooks,             clr_config_hooks,             },
+	{ "lxc.hook.destroy",         set_config_hooks,                get_config_hooks,             clr_config_hooks,             },
+	{ "lxc.hook",                 set_config_hooks,                get_config_hooks,             clr_config_hooks,             },
 	{ "lxc.network.type",         set_config_network_type,         get_config_network_item,      NULL },
 	{ "lxc.network.flags",        set_config_network_flags,        get_config_network_item,      NULL },
 	{ "lxc.network.link",         set_config_network_link,         get_config_network_item,      NULL },
@@ -2763,9 +2764,6 @@ int lxc_clear_config_item(struct lxc_conf *c, const char *key)
 	} else if (strcmp(key, "lxc.cap.keep") == 0) {
 		ret = lxc_clear_config_keepcaps(c);
 
-	} else if (strncmp(key, "lxc.hook", 8) == 0) {
-		ret = lxc_clear_hooks(c, key);
-
 	} else if (strncmp(key, "lxc.group", 9) == 0) {
 		ret = lxc_clear_groups(c);
 
@@ -4163,3 +4161,9 @@ static inline int clr_config_utsname(const char *key, struct lxc_conf *c)
 	c->utsname = NULL;
 	return 0;
 }
+
+static inline int clr_config_hooks(const char *key, struct lxc_conf *c)
+{
+	return lxc_clear_hooks(c, key);
+}
+