libnutclient_variables, nutclient_get_device_variables, nutclient_get_device_rw_variables,

These functions allow to manage variables of devices. • The nutclient_get_device_variables() function retrieves the list of variables names for a device. The returned strarr must be freed by strarr_free (see libnutclient_general(3)). • The nutclient_get_device_rw_variables function retrieves the list of read-write variables names for a device. The returned strarr must be freed by strarr_free (see libnutclient_general(3)). • The nutclient_has_device_variable function tests if the specified variable is supported by the device. Return 1 if supported and 0 if not. • The nutclient_get_device_variable_description function retrieves the variable description, if any. The returned string must be freed by free(3). • The nutclient_get_device_variable_values returns variable values (generally only one). The returned strarr must be freed by strarr_free (see libnutclient_general(3)). • The nutclient_set_device_variable_value intends to set the value of the specified variable. • The nutclient_set_device_variable_values intends to set multiple values of the specified variable. Common arguments: • dev is the device name. • var is the variable name. • value is the variable value. • values is the variable array of values.

libnutclient_variables, nutclient_get_device_variables, nutclient_get_device_rw_variables, nutclient_has_device_variable, nutclient_get_device_variable_description, nutclient_get_device_variable_values, nutclient_set_device_variable_value, nutclient_set_device_variable_values - Variable related functions in Network UPS Tools high-level client access library

libnutclient(3) libnutclient_devices(3) libnutclient_general(3) Network UPS Tools 2.8.3 07/08/2025 LIBNUTCLIENT_VARIABL(3)

#include <nutclient.h> typedef void* NUTCLIENT_t; typedef char** strarr; strarr nutclient_get_device_variables(NUTCLIENT_t client, const char* dev); strarr nutclient_get_device_rw_variables(NUTCLIENT_t client, const char* dev); int nutclient_has_device_variable(NUTCLIENT_t client, const char* dev, const char* var); char* nutclient_get_device_variable_description(NUTCLIENT_t client, const char* dev, const char* var); strarr nutclient_get_device_variable_values(NUTCLIENT_t client, const char* dev, const char* var); void nutclient_set_device_variable_value(NUTCLIENT_t client, const char* dev, const char* var, const char* value); void nutclient_set_device_variable_values(NUTCLIENT_t client, const char* dev, const char* var, const strarr values);