Gets a more detailed networking state than
g_network_monitor_get_network_available().
If #GNetworkMonitor:network-available is %FALSE, then the
connectivity state will be %G_NETWORK_CONNECTIVITY_LOCAL.
If #GNetworkMonitor:network-available is %TRUE, then the
connectivity state will be %G_NETWORK_CONNECTIVITY_FULL (if there
is full Internet connectivity), %G_NETWORK_CONNECTIVITY_LIMITED (if
the host has a default route, but appears to be unable to actually
reach the full Internet), or %G_NETWORK_CONNECTIVITY_PORTAL (if the
host is trapped behind a "captive portal" that requires some sort
of login or acknowledgement before allowing full Internet access).
Note that in the case of %G_NETWORK_CONNECTIVITY_LIMITED and
%G_NETWORK_CONNECTIVITY_PORTAL, it is possible that some sites are
reachable but others are not. In this case, applications can
attempt to connect to remote servers, but should gracefully fall
back to their "offline" behavior if the connection attempt fails.
Gets a more detailed networking state than g_network_monitor_get_network_available().
If #GNetworkMonitor:network-available is %FALSE, then the connectivity state will be %G_NETWORK_CONNECTIVITY_LOCAL.
If #GNetworkMonitor:network-available is %TRUE, then the connectivity state will be %G_NETWORK_CONNECTIVITY_FULL (if there is full Internet connectivity), %G_NETWORK_CONNECTIVITY_LIMITED (if the host has a default route, but appears to be unable to actually reach the full Internet), or %G_NETWORK_CONNECTIVITY_PORTAL (if the host is trapped behind a "captive portal" that requires some sort of login or acknowledgement before allowing full Internet access).
Note that in the case of %G_NETWORK_CONNECTIVITY_LIMITED and %G_NETWORK_CONNECTIVITY_PORTAL, it is possible that some sites are reachable but others are not. In this case, applications can attempt to connect to remote servers, but should gracefully fall back to their "offline" behavior if the connection attempt fails.
Return: the network connectivity state