diff options
| -rw-r--r-- | services/net/java/android/net/dhcp/DhcpPacket.java | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/services/net/java/android/net/dhcp/DhcpPacket.java b/services/net/java/android/net/dhcp/DhcpPacket.java index ef4bc024c153..96c8e9f0f549 100644 --- a/services/net/java/android/net/dhcp/DhcpPacket.java +++ b/services/net/java/android/net/dhcp/DhcpPacket.java @@ -7,6 +7,7 @@ import android.net.metrics.DhcpErrorEvent; import android.os.Build; import android.os.SystemProperties; import android.system.OsConstants; +import android.text.TextUtils; import com.android.internal.annotations.VisibleForTesting; import java.io.UnsupportedEncodingException; @@ -629,7 +630,8 @@ abstract class DhcpPacket { protected void addCommonClientTlvs(ByteBuffer buf) { addTlv(buf, DHCP_MAX_MESSAGE_SIZE, (short) MAX_LENGTH); addTlv(buf, DHCP_VENDOR_CLASS_ID, getVendorId()); - addTlv(buf, DHCP_HOST_NAME, getHostname()); + final String hn = getHostname(); + if (!TextUtils.isEmpty(hn)) addTlv(buf, DHCP_HOST_NAME, hn); } /** |