miaozk2006

'²âÊÔ
Private Sub Form_Load()
    If PingIP("122.22.255.255") Then
        MsgBox "¿ÉÒÔpingͨ"
    Else
        MsgBox "ping ²»Í¨"
    End If
End Sub

Option Explicit

Private Const IP_SUCCESS As Long = 0
Private Const IP_STATUS_BASE As Long = 11000
Private Const IP_BUF_TOO_SMALL As Long = (11000 + 1)
Private Const IP_DEST_NET_UNREACHABLE As Long = (11000 + 2)
Private Const IP_DEST_HOST_UNREACHABLE As Long = (11000 + 3)
Private Const IP_DEST_PROT_UNREACHABLE As Long = (11000 + 4)
Private Const IP_DEST_PORT_UNREACHABLE As Long = (11000 + 5)
Private Const IP_NO_RESOURCES As Long = (11000 + 6)
Private Const IP_BAD_OPTION As Long = (11000 + 7)
Private Const IP_HW_ERROR As Long = (11000 + 8)
Private Const IP_PACKET_TOO_BIG As Long = (11000 + 9)
Private Const IP_REQ_TIMED_OUT As Long = (11000 + 10)
Private Const IP_BAD_REQ As Long = (11000 + 11)
Private Const IP_BAD_ROUTE As Long = (11000 + 12)
Private Const IP_TTL_EXPIRED_TRANSIT As Long = (11000 + 13)
Private Const IP_TTL_EXPIRED_REASSEM As Long = (11000 + 14)
Private Const IP_PARAM_PROBLEM As Long = (11000 + 15)
Private Const IP_SOURCE_QUENCH As Long = (11000 + 16)
Private Const IP_OPTION_TOO_BIG As Long = (11000 + 17)
Private Const IP_BAD_DESTINATION As Long = (11000 + 18)
Private Const IP_ADDR_DELETED As Long = (11000 + 19)
Private Const IP_SPEC_MTU_CHANGE As Long = (11000 + 20)
Private Const IP_MTU_CHANGE As Long = (11000 + 21)
Private Const IP_UNLOAD As Long = (11000 + 22)
Private Const IP_ADDR_ADDED As Long = (11000 + 23)
Private Const IP_GENERAL_FAILURE As Long = (11000 + 50)
Private Const MAX_IP_STATUS As Long = (11000 + 50)
Private Const IP_PENDING As Long = (11000 + 255)
Private Const PING_TIMEOUT As Long = 500
Private Const WS_VERSION_REQD As Long = &H101
Private Const MIN_SOCKETS_REQD As Long = 1
Private Const SOCKET_ERROR As Long = -1
Private Const INADDR_NONE As Long = &HFFFFFFFF
Private Const MAX_WSADescription As Long = 256
Private Const MAX_WSASYSStatus As Long = 128

Public PingTime As Long
Private Type ICMP_OPTIONS
    Ttl             As Byte
    Tos             As Byte
    Flags           As Byte
    OptionsSize     As Byte
    OptionsData     As Long
End Type

Private Type ICMP_ECHO_REPLY
    Address         As Long
    status          As Long
    RoundTripTime   As Long
    DataSize        As Long
    DataPointer     As Long
    Options         As ICMP_OPTIONS
    Data            As String * 250
End Type

Private Type WSADATA
    wVersion As Integer
    wHighVersion As Integer
    szDescription(0 To MAX_WSADescription) As Byte
    szSystemStatus(0 To MAX_WSASYSStatus) As Byte
    wMaxSockets As Long
    wMaxUDPDG As Long
    dwVendorInfo As Long
End Type

Public Declare Function timeGetTime Lib "winmm.dll" () As Long
Private Declare Function WSAStartup Lib "wsock32" (ByVal wVersionRequired As Long, lpWSADATA As WSADATA) As Long
Private Declare Function WSACleanup Lib "wsock32" () As Long
Private Declare Function IcmpCreateFile Lib "icmp.dll" () As Long
Private Declare Function inet_addr Lib "wsock32" (ByVal s As String) As Long
Private Declare Function IcmpCloseHandle Lib "icmp.dll" (ByVal IcmpHandle As Long) As Long
Private Declare Function IcmpSendEcho Lib "icmp.dll" (ByVal IcmpHandle As Long, ByVal DestinationAddress As Long, ByVal RequestData As String, ByVal RequestSize As Long, ByVal RequestOptions As Long, ReplyBuffer As ICMP_ECHO_REPLY, ByVal ReplySize As Long, ByVal Timeout As Long) As Long

Private Function GetStatusCode(status As Long) As String
    On Error GoTo ErrLine
    Dim Msg As String
    GetStatusCode = ""
    Select Case status
        Case IP_SUCCESS
        Msg = "ip success"
        Case INADDR_NONE
        Msg = "inet_addr: bad IP format"
        Case IP_BUF_TOO_SMALL
        Msg = "ip buf too_small"
        Case IP_DEST_NET_UNREACHABLE
        Msg = "ip dest net unreachable"
        Case IP_DEST_HOST_UNREACHABLE
        Msg = "ip dest host unreachable"
        Case IP_DEST_PROT_UNREACHABLE
        Msg = "ip dest port unreachable"
        Case IP_DEST_PORT_UNREACHABLE
        Msg = "ip dest port unreachable"
        Case IP_NO_RESOURCES
        Msg = "ip no resources"
        Case IP_BAD_OPTION
        Msg = "ip bad option"
        Case IP_HW_ERROR
        Msg = "ip hw_error"
        Case IP_PACKET_TOO_BIG
        Msg = "ip packet too_big"
        Case IP_REQ_TIMED_OUT
        Msg = "ip req timed out"
        Case IP_BAD_REQ
        Msg = "ip bad req"
        Case IP_BAD_ROUTE
        Msg = "ip bad route"
        Case IP_TTL_EXPIRED_TRANSIT
        Msg = "ip ttl expired transit"
        Case IP_TTL_EXPIRED_REASSEM
        Msg = "ip ttl expired reassem"
        Case IP_PARAM_PROBLEM
        Msg = "ip param_problem"
        Case IP_SOURCE_QUENCH
        Msg = "ip source quench"
        Case IP_OPTION_TOO_BIG
        Msg = "ip option too_big"
        Case IP_BAD_DESTINATION
        Msg = "ip bad destination"
        Case IP_ADDR_DELETED
        Msg = "ip addr deleted"
        Case IP_SPEC_MTU_CHANGE
        Msg = "ip spec mtu change"
        Case IP_MTU_CHANGE
        Msg = "ip mtu_change"
        Case IP_UNLOAD
        Msg = "ip unload"
        Case IP_ADDR_ADDED
        Msg = "ip addr added"
        Case IP_GENERAL_FAILURE
        Msg = "ip general failure"
        Case IP_PENDING
        Msg = "ip pending"
        Case PING_TIMEOUT
        Msg = "ping timeout"
        Case Else
        Msg = "unknown msg returned"
    End Select
    GetStatusCode = Msg
    Exit Function
ErrLine:
End Function

Private Function Ping(sAddress As String, sDataToSend As String, ECHO As ICMP_ECHO_REPLY) As Long
    On Error GoTo ErrLine
    Dim hPort As Long
    Dim dwAddress As Long
    dwAddress = inet_addr(sAddress)
    If dwAddress <> INADDR_NONE Then
        hPort = IcmpCreateFile()
        If hPort Then
            Call IcmpSendEcho(hPort, dwAddress, sDataToSend, Len(sDataToSend), 0, ECHO, Len(ECHO), PING_TIMEOUT)
            Ping = ECHO.status
            Call IcmpCloseHandle(hPort)
        End If
    Else
        Ping = INADDR_NONE
    End If
    Exit Function
ErrLine:
    Ping = INADDR_NONE
End Function

Public Function PingIP(ByVal szIp As String) As Boolean
    On Error GoTo ErrLine
    Dim WSAD As WSADATA
    Dim ECHO As ICMP_ECHO_REPLY
    Dim ret As Long
    'Delay 150
    PingIP = False
    PingTime = Empty
    If WSAStartup(WS_VERSION_REQD, WSAD) = IP_SUCCESS Then
        ret = Ping(Trim$(szIp), "tanaya", ECHO)
        PingTime = ECHO.RoundTripTime
        If InStr(1, GetStatusCode(ret), "success") <> 0 Then
            WSACleanup
            PingIP = True
            PingTime = ECHO.RoundTripTime
            Exit Function
        End If
    End If
    Exit Function
ErrLine:
End Function

 
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