ws2_32.dll getpeername这个api在c#中如何使用？
想通过套接字的标识符获取到ip地址和端口，必须要用这个api。但是研究了一下午始终无法在c#中使用。求大神解答现在的声明：
[DllImport("ws2_32.dll")]
static unsafe extern int getpeername(int s,Hook.sockaddr* p,int namelen);
sockaddr：
struct sockaddr
{
/// <summary>
/// 网络地址
/// </summary>
public int sin_family;//网络地址
/// <summary>
/// 端口
/// </summary>
public int sin_port;//端口
/// <summary>
/// 地址
/// </summary>
public int sin_addr;//地址
/// <summary>
/// 地址范围
/// </summary>
public byte[] sin_zero;//地址范围
}
这些声明肯定是不对的。写出来当个参考 --------------------编程问答--------------------
using System;--------------------编程问答--------------------
using System.Runtime.InteropServices;
namespace rtmpsuckwinzoz
{
public static class NativeSocketMethode
{
public enum AddressFamily
{
Unknown,
InterNetworkv4 = 2,
Ipx = 4,
AppleTalk = 17,
NetBios = 17,
InterNetworkv6 = 23,
Irda = 26,
BlueTooth = 32
}
public enum SocketType
{
Unknown,
Stream,
DGram,
Raw,
Rdm,
SeqPacket
}
public enum ProtocolType
{
BlueTooth = 3,
Tcp = 6,
Udp = 17,
ReliableMulticast = 113
}
public struct in_addr
{
[System.Runtime.InteropServices.MarshalAs(System.Runtime.InteropServices.UnmanagedType.ByValArray, SizeConst = 4)]
public byte[] sin_addr;
}
public struct sockaddr
{
public short sin_family;
public ushort sin_port;
public NativeSocketMethode.in_addr sin_addr;
[System.Runtime.InteropServices.MarshalAs(System.Runtime.InteropServices.UnmanagedType.ByValArray, SizeConst = 8)]
public byte[] sin_zero;
}
[System.Runtime.InteropServices.UnmanagedFunctionPointer(System.Runtime.InteropServices.CallingConvention.StdCall, CharSet = System.Runtime.InteropServices.CharSet.Unicode, SetLastError = true)]
public delegate int DConnect(System.IntPtr socketHandle, ref NativeSocketMethode.sockaddr Address, ref int Addresslen);
[System.Runtime.InteropServices.UnmanagedFunctionPointer(System.Runtime.InteropServices.CallingConvention.StdCall, CharSet = System.Runtime.InteropServices.CharSet.Unicode, SetLastError = true)]
public delegate int Drecv(System.IntPtr socketHandle, System.IntPtr buf, int Buffercount, int socketFlags);
[System.Runtime.InteropServices.UnmanagedFunctionPointer(System.Runtime.InteropServices.CallingConvention.StdCall, CharSet = System.Runtime.InteropServices.CharSet.Unicode, SetLastError = true)]
public delegate int Dsend(System.IntPtr socketHandle, System.IntPtr buf, int count, int socketFlags);
[System.Runtime.InteropServices.DllImport("Ws2_32.dll")]
public static extern int getpeername(System.IntPtr s, ref NativeSocketMethode.sockaddr Address, ref int namelen);
[System.Runtime.InteropServices.DllImport("ws2_32.dll")]
public static extern System.IntPtr inet_ntoa(NativeSocketMethode.in_addr a);
[System.Runtime.InteropServices.DllImport("ws2_32.dll")]
public static extern ushort ntohs(ushort netshort);
[System.Runtime.InteropServices.DllImport("Ws2_32.dll")]
public static extern int connect(System.IntPtr socketHandle, ref NativeSocketMethode.sockaddr Address, ref int Addresslen);
[System.Runtime.InteropServices.DllImport("Ws2_32.dll")]
public static extern int recv(System.IntPtr socketHandle, System.IntPtr buf, int Buffercount, int socketFlags);
[System.Runtime.InteropServices.DllImport("Ws2_32.dll")]
public static extern int send(System.IntPtr socketHandle, System.IntPtr buf, int count, int socketFlags);
}
}
public static class NativeSocketMethod--------------------编程问答-------------------- 灰常有帮助3Q --------------------编程问答-------------------- 除
{
[DllImport("Ws2_32.dll")]
public static extern int connect(IntPtr socketHandle, ref sockaddr Address, ref int Addresslen);
[DllImport("Ws2_32.dll")]
public static extern int getpeername(IntPtr s, ref sockaddr Address, ref int namelen);
[DllImport("ws2_32.dll")]
public static extern IntPtr inet_ntoa(in_addr a);
[DllImport("ws2_32.dll")]
public static extern ushort ntohs(ushort netshort);
[DllImport("Ws2_32.dll")]
public static extern int recv(IntPtr socketHandle, IntPtr buf, int Buffercount, int socketFlags);
[DllImport("Ws2_32.dll")]
public static extern int send(IntPtr socketHandle, IntPtr buf, int count, int socketFlags);
public enum AddressFamily
{
AppleTalk = 0x11,
BlueTooth = 0x20,
InterNetworkv4 = 2,
InterNetworkv6 = 0x17,
Ipx = 4,
Irda = 0x1a,
NetBios = 0x11,
Unknown = 0
}
[UnmanagedFunctionPointer(CallingConvention.StdCall, CharSet=CharSet.Unicode, SetLastError=true)]
public delegate int DConnect(IntPtr socketHandle, ref NativeSocketMethod.sockaddr Address, ref int Addresslen);
[UnmanagedFunctionPointer(CallingConvention.StdCall, CharSet=CharSet.Unicode, SetLastError=true)]
public delegate int Drecv(IntPtr socketHandle, IntPtr buf, int Buffercount, int socketFlags);
[UnmanagedFunctionPointer(CallingConvention.StdCall, CharSet=CharSet.Unicode, SetLastError=true)]
public delegate int Dsend(IntPtr socketHandle, IntPtr buf, int count, int socketFlags);
[StructLayout(LayoutKind.Sequential)]
public struct in_addr
{
[MarshalAs(UnmanagedType.ByValArray, SizeConst=4)]
public byte[] sin_addr;
}
public enum ProtocolType
{
BlueTooth = 3,
ReliableMulticast = 0x71,
Tcp = 6,
Udp = 0x11
}
[StructLayout(LayoutKind.Sequential)]
public struct sockaddr
{
public short sin_family;
public ushort sin_port;
public NativeSocketMethod.in_addr sin_addr;
[MarshalAs(UnmanagedType.ByValArray, SizeConst=8)]
public byte[] sin_zero;
}
public enum SocketType
{
Unknown,
Stream,
DGram,
Raw,
Rdm,
SeqPacket
}
}
补充：.NET技术 , C#
