Function json_setconfig

lightningd/configs.c:652–806

}

static struct command_result *json_setconfig(struct command *cmd,
					     const char *buffer,
					     const jsmntok_t *obj UNNEEDED,
					     const jsmntok_t *params)
{
	const struct opt_table *ot;
	const char *val;
	char *err;
	void *arg;
	bool *transient;
	const jsmntok_t *valtok;

	if (!param_check(cmd, buffer, params,
			 p_req("config", param_opt_dynamic_config, &ot),
			 p_opt("val", param_string, &val),
			 p_opt_def("transient", param_bool, &transient, false),
			 NULL))
		return command_param_failed();

	valtok = json_get_member(buffer, params, "val");

	if (ot->type & OPT_MULTI) {
		const char **vals;
		const char **names;
		const jsmntok_t *t;
		size_t i;

		names = opt_names_arr(tmpctx, ot);

		if (valtok && valtok->type != JSMN_ARRAY)
			return command_fail(cmd, JSONRPC2_INVALID_PARAMS,
					    "%s is a multi option: val must be an array",
					    ot->names + 2);

		if (valtok) {
			vals = tal_arr(cmd, const char *, valtok->size);
			json_for_each_arr(i, t, valtok) {
				vals[i] = json_strdup(vals, buffer, t);
			}
		} else {
			/* No val means empty array (clear all) */
			vals = tal_arr(cmd, const char *, 0);
		}

		if (!*transient) {
			const struct configvar *cv;
			const char *fname;

			cv = configvar_first(cmd->ld->configvars, names);

			fname = config_not_writable(cmd, cmd, cv);
			if (fname)
				return command_fail(cmd, JSONRPC2_INVALID_PARAMS,
						    "Cannot write to config file %s",
						    fname);

			/* Check ALL existing config lines haven't changed */
			for (cv = configvar_first(cmd->ld->configvars, names);