锐客网

  1. 首页 > 睿知 > it技术 > >

vb.net中ping的简单介绍( 二 )

IT技术const


Public PingTime As Long
Private Type ICMP_OPTIONS
TtlAs Byte
TosAs Byte
FlagsAs Byte
OptionsSizeAs Byte
OptionsDataAs Long
End Type
Private Type ICMP_ECHO_REPLY
AddressAs Long
statusAs Long
RoundTripTimeAs Long
DataSizeAs Long
DataPointerAs Long
OptionsAs ICMP_OPTIONS
DataAs 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 Declare Function WSAGetLastError Lib "wsock32" () As Long
'Private Declare Function gethostname Lib "wsock32" (ByVal szHost As String, ByVal dwHostLen As Long) As Long
'Private Declare Function gethostbyname Lib "wsock32" (ByVal szHost As String) As Long
'Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (xDest As Any, xSource As Any, ByVal nbytes 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 dwAddressINADDR_NONE Then
hPort = IcmpCreateFile()
If hPort Then
Call IcmpSendEcho(hPort, dwAddress, sDataToSend, Len(sDataToSend), 0, ECHO, Len(ECHO), PING_TIMEOUT)

推荐阅读


上一篇：插座灯亮电视没电怎么回事，电灯亮插座没电怎么办

下一篇：美国为什么要断根服务器，美国为什么把跟服务器给中国