Function jsonrpc_build_cmd

modules/jsonrpc/jsonrpc.c:464–510

}

static char *jsonrpc_build_cmd(str *method, str *params, int *id)
{
	char *s;
	cJSON *param_obj;
	cJSON *ret_obj;
	char *params_buf;

	/* first thing - try to parse the parameters - need it NULL terminated */
	params_buf = pkg_malloc(params->len + 1);
	if (!params_buf) {
		LM_ERR("cannot allocate memory for params!\n");
		return NULL;
	}
	memcpy(params_buf, params->s, params->len);
	params_buf[params->len] = 0;

	param_obj = cJSON_Parse(params_buf);
	pkg_free(params_buf);
	if (!param_obj) {
		LM_ERR("cannot parse json param: %.*s\n", params->len, params->s);
		return NULL;
	}

	if (param_obj->type != cJSON_Array && param_obj->type != cJSON_Object) {
		LM_ERR("invalid cJSON type %d - must be array or object!\n", param_obj->type);
		cJSON_Delete(param_obj);
		return NULL;
	}
	
	ret_obj = cJSON_CreateObject();
	if (id)
		cJSON_AddNumberToObject(ret_obj, "id", *id);
	else
		cJSON_AddNullToObject(ret_obj, "id");
	cJSON_AddItemToObject(ret_obj, "jsonrpc",
			cJSON_CreateString(JSONRPC_VERSION));
	cJSON_AddItemToObject(ret_obj, "method",
			cJSON_CreateStr(method->s, method->len));
	cJSON_AddItemToObject(ret_obj, "params", param_obj);

	s = cJSON_PrintUnformatted(ret_obj);
	if (!s)
		LM_ERR("cannot print json object!\n");

	cJSON_Delete(ret_obj);
	return s;
}