Expose underlying close_all_fds config value via API

src/lxc/lxc_start.c

@@ -265,7 +265,7 @@ int main(int argc, char *argv[])
 	}
 
 	if (my_args.close_all_fds)
-		conf->close_all_fds = 1;
+		c->want_close_all_fds(c);
 
 	err = c->start(c, 0, args) ? 0 : -1;
 

src/lxc/lxccontainer.c

@@ -456,6 +456,18 @@ static void lxcapi_want_daemonize(struct lxc_container *c)
 	container_mem_unlock(c);
 }
 
+static void lxcapi_want_close_all_fds(struct lxc_container *c)
+{
+	if (!c || !c->lxc_conf)
+		return;
+	if (container_mem_lock(c)) {
+		ERROR("Error getting mem lock");
+		return;
+	}
+	c->lxc_conf->close_all_fds = 1;
+	container_mem_unlock(c);
+}
+
 static bool lxcapi_wait(struct lxc_container *c, const char *state, int timeout)
 {
 	int ret;
@@ -2682,6 +2694,7 @@ struct lxc_container *lxc_container_new(const char *name, const char *configpath
 	c->init_pid = lxcapi_init_pid;
 	c->load_config = lxcapi_load_config;
 	c->want_daemonize = lxcapi_want_daemonize;
+	c->want_close_all_fds = lxcapi_want_close_all_fds;
 	c->start = lxcapi_start;
 	c->startl = lxcapi_startl;
 	c->stop = lxcapi_stop;

src/lxc/lxccontainer.h

@@ -68,6 +68,7 @@ struct lxc_container {
 	bool (*startl)(struct lxc_container *c, int useinit, ...);
 	bool (*stop)(struct lxc_container *c);
 	void (*want_daemonize)(struct lxc_container *c);
+	void (*want_close_all_fds)(struct lxc_container *c);
 	// Return current config file name.  The result is strdup()d, so free the result.
 	char *(*config_file_name)(struct lxc_container *c);
 	// for wait, timeout == -1 means wait forever, timeout == 0 means don't wait.