/// <summary>
/// Pingar um endereco IP.
/// </summary>
/// <param name="ip">IP no formato xxx.xxx.xxx.xxx</param>
/// <param name="timeout">Timeout para efetuar o Ping</param>
/// <param name="info">Informacao retornada no formato DOS</param>
/// <returns>Tempo em milisegundos</returns>
public static int Ping(string ip, int timeout, out string info)
{
IPEndPoint host = null;
host = new IPEndPoint(Dns.GetHostEntry(ip).AddressList[0], 0);
if (host == null | Environment.OSVersion.Platform != PlatformID.WinCE)
{
info = "ip error!";
return(-1);
}
int result = -1;
IntPtr ICMPHandle;
Int32 iIP;
String sData;
IP_OPTION_INFORMATION oICMPOptions = new IP_OPTION_INFORMATION();
ICMP_ECHO_REPLY ICMPReply = new ICMP_ECHO_REPLY();
Int32 iReplies;
ICMPHandle = IcmpCreateFile();
iIP = BitConverter.ToInt32(host.Address.GetAddressBytes(), 0);
sData = "abcdefghijklmnopqrstuvwxyz012345";
oICMPOptions.TTL = 255;
iReplies = IcmpSendEcho(ICMPHandle, iIP, sData,
(Int16)sData.Length, ref oICMPOptions,
ref ICMPReply, Marshal.SizeOf(ICMPReply),
timeout);
if (ICMPReply.Status == 0 && iReplies > 0)
{
result = ICMPReply.RoundTripTime;
info = "ping bytes=" + sData.Length.ToString() + " time=" + result.ToString() + "ms TTL=" + oICMPOptions.TTL.ToString();
}
else
{
info = "ping " + ip + "timed out.";
}
IcmpCloseHandle(ICMPHandle);
return(result);
}
internal static partial uint Icmp6SendEcho2(SafeCloseIcmpHandle icmpHandle, SafeWaitHandle Event, IntPtr apcRoutine, IntPtr apcContext,
byte[] sourceSocketAddress, byte[] destSocketAddress, SafeLocalAllocHandle data, ushort dataSize, ref IP_OPTION_INFORMATION options, SafeLocalAllocHandle replyBuffer, uint replySize, uint timeout);
static extern Int32 IcmpSendEcho(IntPtr icmpHandle, Int32 destinationAddress, String requestData, Int16 requestSize, ref IP_OPTION_INFORMATION requestOptions, ref ICMP_ECHO_REPLY replyBuffer, Int32 replySize, Int32 timeout);
public static extern uint IcmpSendEcho(IntPtr IcmpHandle, in_addr DestinationAddress, byte[] RequestData, ushort RequestSize, ref IP_OPTION_INFORMATION RequestOptions, ref ICMP_ECHO_REPLY ReplyBuffer, uint ReplySize, uint Timeout);
