gui: accomodate unix socket Proxy in updateDefaultProxyNets()

This will require a follow-up to add unix socket options to the GUI

Author: pinheadmz

src/qt/optionsdialog.cpp

@@ -454,20 +454,24 @@ void OptionsDialog::updateProxyValidationState()
 
 void OptionsDialog::updateDefaultProxyNets()
 {
-    const std::optional<CNetAddr> ui_proxy_netaddr{LookupHost(ui->proxyIp->text().toStdString(), /*fAllowLookup=*/false)};
-    const CService ui_proxy{ui_proxy_netaddr.value_or(CNetAddr{}), ui->proxyPort->text().toUShort()};
+    std::string proxyIpText{ui->proxyIp->text().toStdString()};
+    if (!IsUnixSocketPath(proxyIpText)) {
+        const std::optional<CNetAddr> ui_proxy_netaddr{LookupHost(proxyIpText, /*fAllowLookup=*/false)};
+        const CService ui_proxy{ui_proxy_netaddr.value_or(CNetAddr{}), ui->proxyPort->text().toUShort()};
+        proxyIpText = ui_proxy.ToStringAddrPort();
+    }
 
     Proxy proxy;
     bool has_proxy;
 
     has_proxy = model->node().getProxy(NET_IPV4, proxy);
-    ui->proxyReachIPv4->setChecked(has_proxy && proxy.proxy == ui_proxy);
+    ui->proxyReachIPv4->setChecked(has_proxy && proxy.ToString() == proxyIpText);
 
     has_proxy = model->node().getProxy(NET_IPV6, proxy);
-    ui->proxyReachIPv6->setChecked(has_proxy && proxy.proxy == ui_proxy);
+    ui->proxyReachIPv6->setChecked(has_proxy && proxy.ToString() == proxyIpText);
 
     has_proxy = model->node().getProxy(NET_ONION, proxy);
-    ui->proxyReachTor->setChecked(has_proxy && proxy.proxy == ui_proxy);
+    ui->proxyReachTor->setChecked(has_proxy && proxy.ToString() == proxyIpText);
 }
 
 ProxyAddressValidator::ProxyAddressValidator(QObject *parent) :