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Use new NetworkUtils.numericToInetAddress.

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Fetches an InetAddress without danger of an accidental dns lookup.

Change-Id: Ic0ca48cdd06bbbf6f0fb2cd4ae7832dde451ccae
This commit is contained in:
Robert Greenwalt
2011-02-22 15:56:45 -08:00
parent 0ba170c979
commit c9bc99b246
1 changed files with 35 additions and 39 deletions
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74
src/com/android/settings/wifi/WifiConfigController.java
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@@ -402,52 +402,48 @@ public class WifiConfigController implements TextWatcher,
}
private int validateIpConfigFields(LinkProperties linkProperties) {
String ipAddr = mIpAddressView.getText().toString();
InetAddress inetAddr = null;
try {
String ipAddr = mIpAddressView.getText().toString();
if (!InetAddress.isNumeric(ipAddr)) {
return R.string.wifi_ip_settings_invalid_ip_address;
}
InetAddress inetAddr = InetAddress.getByName(ipAddr);
inetAddr = NetworkUtils.numericToInetAddress(ipAddr);
} catch (IllegalArgumentException e) {
return R.string.wifi_ip_settings_invalid_ip_address;
}
int networkPrefixLength = Integer.parseInt(mNetworkPrefixLengthView.getText()
.toString());
if (networkPrefixLength < 0 || networkPrefixLength > 32) {
return R.string.wifi_ip_settings_invalid_network_prefix_length;
}
int networkPrefixLength = -1;
try {
networkPrefixLength = Integer.parseInt(mNetworkPrefixLengthView.getText().toString());
} catch (NumberFormatException e) { }
if (networkPrefixLength < 0 || networkPrefixLength > 32) {
return R.string.wifi_ip_settings_invalid_network_prefix_length;
}
linkProperties.addLinkAddress(new LinkAddress(inetAddr, networkPrefixLength));
linkProperties.addLinkAddress(new LinkAddress(inetAddr, networkPrefixLength));
String gateway = mGatewayView.getText().toString();
InetAddress gatewayAddr = null;
try {
gatewayAddr = NetworkUtils.numericToInetAddress(gateway);
} catch (IllegalArgumentException e) {
return R.string.wifi_ip_settings_invalid_gateway;
}
linkProperties.addGateway(gatewayAddr);
String gateway = mGatewayView.getText().toString();
if (!InetAddress.isNumeric(gateway)) {
return R.string.wifi_ip_settings_invalid_gateway;
}
InetAddress gatewayAddr;
String dns = mDns1View.getText().toString();
InetAddress dnsAddr = null;
try {
dnsAddr = NetworkUtils.numericToInetAddress(dns);
} catch (IllegalArgumentException e) {
return R.string.wifi_ip_settings_invalid_dns;
}
linkProperties.addDns(dnsAddr);
if (mDns2View.length() > 0) {
dns = mDns2View.getText().toString();
try {
gatewayAddr = InetAddress.getByName(gateway);
} catch (UnknownHostException e) {
return R.string.wifi_ip_settings_invalid_gateway;
}
linkProperties.addGateway(gatewayAddr);
String dns = mDns1View.getText().toString();
if (!InetAddress.isNumeric(dns)) {
dnsAddr = NetworkUtils.numericToInetAddress(dns);
} catch (IllegalArgumentException e) {
return R.string.wifi_ip_settings_invalid_dns;
}
linkProperties.addDns(InetAddress.getByName(dns));
if (mDns2View.length() > 0) {
dns = mDns2View.getText().toString();
if (!InetAddress.isNumeric(dns)) {
return R.string.wifi_ip_settings_invalid_dns;
}
linkProperties.addDns(InetAddress.getByName(dns));
}
} catch (NumberFormatException ignore) {
return R.string.wifi_ip_settings_invalid_network_prefix_length;
} catch (UnknownHostException e) {
//Should not happen since we have already validated addresses
Log.e(TAG, "Failure to validate IP configuration " + e);
return R.string.wifi_ip_settings_invalid_ip_address;
linkProperties.addDns(dnsAddr);
}
return 0;
}