# Civetweb API Reference ### `struct mg_server_ports;` ### Fields | Field | Type | Description | | :--- | :--- | :--- | |**`protocol`**|`int`|The protocol mask where `IPv4` is **1**, `IPv6` is **2** and both `IPv4` and `IPv6` is **3**| |**`port`**|`int`|The port number on which the service listens| |**`is_ssl`**|`int`|**0** for `HTTP` communication, **1** for `HTTPS`| |**`is_redirect`**|`int`|**1** if all requests are redirected, otherwise **0**| |**`_reserved1`**|`int`|Reserved for internal use| |**`_reserved2`**|`int`|Reserved for internal use| |**`_reserved3`**|`int`|Reserved for internal use| |**`_reserved4`**|`int`|Reserved for internal use| ### Description A call to the function [`mg_get_server_ports()`](mg_get_server_ports.md) returns a list of structures with information about each running Civetweb service. These structures are of type `struct mg_server_ports` and contain the base information of each service. ### See Also * [`mg_get_server_ports();`](mg_get_server_ports.md)