人家的vb winsock 通讯
来源:互联网 发布:解除网络端口被限制 编辑:程序博客网 时间:2024/05/01 13:52
'强人的api winsock
Declare Function bind Lib "ws2_32.dll" (ByVal s As Long, addr As SOCK_ADDR, ByVal namelen As Long) As Long
Declare Function closesocket Lib "ws2_32.dll" (ByVal s As Long) As Long
Declare Function connect Lib "ws2_32.dll" (ByVal s As Long, name As SOCK_ADDR, ByVal namelen As Integer) As Long
Declare Function inet_addr Lib "ws2_32.dll" (ByVal cp As String) As Long
Declare Function htons Lib "ws2_32.dll" (ByVal hostshort As Integer) As Integer
Declare Function recv Lib "ws2_32.dll" (ByVal s As Long, buffer As Any, ByVal length As Long, ByVal flags As Long) As Long
Declare Function send Lib "ws2_32.dll" (ByVal s As Long, buffer As Any, ByVal length As Long, ByVal flags As Long) As Long
Declare Function shutdown Lib "ws2_32.dll" (ByVal s As Long, ByVal how As Long) As Long
Declare Function ioctlsocket Lib "ws2_32.dll" (ByVal s As Long, ByVal v As Long, ut As Long) As Long
Declare Function socket Lib "ws2_32.dll" (ByVal af As Long, ByVal type_specification As Long, ByVal protocol As Long) As Long
Declare Function WSACancelBlockingCall Lib "ws2_32.dll" () As Long
Declare Function WSACleanup Lib "ws2_32.dll" () As Long
Declare Function WSAGetLastError Lib "ws2_32.dll" () As Long
Declare Function WSAStartup Lib "ws2_32.dll" (ByVal wVersionRequired As Integer, wsData As WSA_DATA) As Long
Declare Function WSASocketA Lib "ws2_32.dll" (ByVal af As Long, ByVal type1 As Long, ByVal protocol As Long, lpProtocolInfo As Long, g As Long, ByVal dwFlags As Long)
Declare Function WSAIoctl Lib "ws2_32.dll" (ByVal s As Long, ByVal dwIoControlCode As Long, lpvInBuffer As Long, ByVal cbInBuffer As Long, lpvOutBuffer As Long, ByVal cbOutBuffer As Long, lpcbBytesReturned As Long, lpOverlapped As Long, lpCompletionRoutine As Long) As Long
Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (Destination As Any, Source As Any, ByVal length As Long)
Public Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long)
Public Const WSADESCRIPTION_LEN = 256
Public Const WSASYS_STATUS_LEN = 128
Type WSA_DATA
wVersion As Integer
wHighVersion As Integer
strDescription(WSADESCRIPTION_LEN + 1) As Byte
strSystemStatus(WSASYS_STATUS_LEN + 1) As Byte
iMaxSockets As Integer
iMaxUdpDg As Integer
lpVendorInfo As Long
End Type
Type IN_ADDR
S_addr As Long
End Type
Type SOCK_ADDR
sin_family As Integer
sin_port As Integer
sin_addr As IN_ADDR
sin_zero(0 To 7) As Byte
End Type
Type IPHeader
lenver As Byte
tos As Byte
len As Integer
ident As Integer
flags As Integer
ttl As Byte
proto As Byte
checksum As Integer
sourceIP As Long
destIP As Long
End Type
Const AF_INET = 2
Const SOCK_RAW = 3
Const IPPROTO_IP = 0
Const IPPROTO_TCP = 6
Const IPPROTO_UDP = 17
Const MAX_PACK_LEN = 65535
Const SOCKET_ERROR = -1&
Private mwsaData As WSA_DATA
Private m_hSocket As Long
Private msaLocalAddr As SOCK_ADDR
Private msaRemoteAddr As SOCK_ADDR
Sub Main()
Dim nResult As Long
nResult = WSAStartup(&H202, mwsaData)
If nResult <> WSANOERROR Then
MsgBox "Error en WSAStartup"
Exit Sub
End If
m_hSocket = socket(AF_INET, SOCK_RAW, IPPROTO_IP)
If (m_hSocket = INVALID_SOCKET) Then
MsgBox "Error in socket"
Exit Sub
End If
msaLocalAddr.sin_family = AF_INET
msaLocalAddr.sin_port = 0
msaLocalAddr.sin_addr.S_addr = inet_addr("192.168.1.71") '这里需要你自己的网卡的IP地址
nResult = bind(m_hSocket, msaLocalAddr, Len(msaLocalAddr))
If (nResult = SOCKET_ERROR) Then
MsgBox "Error in bind"
Exit Sub
End If
Dim InParamBuffer As Long
Dim BytesRet As Long
BytesRet = 0
InParamBuffer = 1
nResult = ioctlsocket(m_hSocket, &H98000001, 1)
If nResult <> 0 Then
MsgBox "ioctlsocket"
Exit Sub
End If
Dim strData As String
Dim nReceived As Long
'截获来的数据放在BUFF里面
Dim Buff(0 To MAX_PACK_LEN) As Byte
Dim IPH As IPHeader
Do Until False '这个例子里,一直获取
DoEvents
nResult = recv(m_hSocket, Buff(0), MAX_PACK_LEN, 0)
If nResult = SOCKET_ERROR Then
MsgBox "Error in RecvData::recv"
Exit Do
End If
CopyMemory IPH, Buff(0), Len(IPH) '为了访问方便
Select Case IPH.proto
Case IPPROTO_TCP
'frmHookTcpip.Text1.SelText = HexIp2DotIp(IPH.sourceIP)
'frmHookTcpip.Text1.SelText = " -----> "
'frmHookTcpip.Text1.SelText = HexIp2DotIp(IPH.destIP)
'frmHookTcpip.Text1.SelText = vbCrLf
Debug.Print HexIp2DotIp(IPH.sourceIP) & " -----> " & HexIp2DotIp(IPH.destIP)
End Select
Loop
nResult = shutdown(m_hSocket, 2)
nResult = closesocket(m_hSocket)
nResult = WSACancelBlockingCall
nResult = WSACleanup
End Sub
Function HexIp2DotIp(ByVal ip As Long) As String
Dim s As String, p1 As String, p2 As String, p3 As String, p4 As String
s = Right("00000000" & Hex(ip), 8)
p1 = Val("&h" & Mid(s, 1, 2))
p2 = Val("&h" & Mid(s, 3, 2))
p3 = Val("&h" & Mid(s, 5, 2))
p4 = Val("&h" & Mid(s, 7, 2))
HexIp2DotIp = p4 & "." & p3 & "." & p2 & "." & p1
End Function
- 人家的vb winsock 通讯
- VB多用户Winsock控件通讯实例
- VB多用户Winsock控件通讯实例
- WinSock通讯
- 最简单的WINSOCK通讯模型
- 真正的VB木马,不用WINSOCK控件
- 基于VB Winsock 控件的聊天程序
- vb.net中Winsock控件的使用
- winsock实现基于TCP的客户端/服务器通讯
- Winsock学习1:用winsock实现socket通讯的server端。
- Winsock学习2:用winsock实现socket通讯的client端。
- VB中的Winsock编程
- VB Winsock控件问题
- VB winsock介绍
- VB Winsock 介绍
- VB中的Winsock编程
- VB WINSOCK state常数
- VB中Winsock控制的UDP协议的使用
- 转:技术人才如何转行做管理_茜茜_新浪博客
- 浅析Servle类及其处理客户端请求
- Geodatabase概述(翻译)
- Myeclipse 常用快捷键
- CSpitterWnd的自动调整大小
- 人家的vb winsock 通讯
- Oracle存储过程的基本语法及注意事项
- LKD 3rd 读书笔记——Preface
- vi 操作指南
- 【Python基础】函数
- 8583报文规范的简单例子(转)
- Tomcat配置IP访问限制与允许(server.xml)
- js正则 各种验证
- 记住最快的拷贝方式 win7