C# Signature:
[DllImport("ws2_32.dll", CharSet = CharSet.Unicode, SetLastError = true, CallingConvention = CallingConvention.StdCall)]
public static extern IntPtr WSASocket(ADDRESS_FAMILIES af, SOCKET_TYPE socket_type, PROTOCOL protocol,
IntPtr lpProtocolInfo, Int32 group, OPTION_FLAGS_PER_SOCKET dwFlags);
VB Signature:
Declare Function WSASocket Lib "ws2_32.dll" (TODO) As TODO
User-Defined Types:
public enum ADDRESS_FAMILIES : short
{
/// <summary>
/// Unspecified [value = 0].
/// </summary>
AF_UNSPEC = 0,
/// <summary>
/// Local to host (pipes, portals) [value = 1].
/// </summary>
AF_UNIX = 1,
/// <summary>
/// Internetwork: UDP, TCP, etc [value = 2].
/// </summary>
AF_INET = 2,
/// <summary>
/// Arpanet imp addresses [value = 3].
/// </summary>
AF_IMPLINK = 3,
/// <summary>
/// Pup protocols: e.g. BSP [value = 4].
/// </summary>
AF_PUP = 4,
/// <summary>
/// Mit CHAOS protocols [value = 5].
/// </summary>
AF_CHAOS = 5,
/// <summary>
/// XEROX NS protocols [value = 6].
/// </summary>
AF_NS = 6,
/// <summary>
/// IPX protocols: IPX, SPX, etc [value = 6].
/// </summary>
AF_IPX = 6,
/// <summary>
/// ISO protocols [value = 7].
/// </summary>
AF_ISO = 7,
/// <summary>
/// OSI is ISO [value = 7].
/// </summary>
AF_OSI = 7,
/// <summary>
/// european computer manufacturers [value = 8].
/// </summary>
AF_ECMA = 8,
/// <summary>
/// datakit protocols [value = 9].
/// </summary>
AF_DATAKIT = 9,
/// <summary>
/// CCITT protocols, X.25 etc [value = 10].
/// </summary>
AF_CCITT = 10,
/// <summary>
/// IBM SNA [value = 11].
/// </summary>
AF_SNA = 11,
/// <summary>
/// DECnet [value = 12].
/// </summary>
AF_DECnet = 12,
/// <summary>
/// Direct data link interface [value = 13].
/// </summary>
AF_DLI = 13,
/// <summary>
/// LAT [value = 14].
/// </summary>
AF_LAT = 14,
/// <summary>
/// NSC Hyperchannel [value = 15].
/// </summary>
AF_HYLINK = 15,
/// <summary>
/// AppleTalk [value = 16].
/// </summary>
AF_APPLETALK = 16,
/// <summary>
/// NetBios-style addresses [value = 17].
/// </summary>
AF_NETBIOS = 17,
/// <summary>
/// VoiceView [value = 18].
/// </summary>
AF_VOICEVIEW = 18,
/// <summary>
/// Protocols from Firefox [value = 19].
/// </summary>
AF_FIREFOX = 19,
/// <summary>
/// Somebody is using this! [value = 20].
/// </summary>
AF_UNKNOWN1 = 20,
/// <summary>
/// Banyan [value = 21].
/// </summary>
AF_BAN = 21,
/// <summary>
/// Native ATM Services [value = 22].
/// </summary>
AF_ATM = 22,
/// <summary>
/// Internetwork Version 6 [value = 23].
/// </summary>
AF_INET6 = 23,
/// <summary>
/// Microsoft Wolfpack [value = 24].
/// </summary>
AF_CLUSTER = 24,
/// <summary>
/// IEEE 1284.4 WG AF [value = 25].
/// </summary>
AF_12844 = 25,
/// <summary>
/// IrDA [value = 26].
/// </summary>
AF_IRDA = 26,
/// <summary>
/// Network Designers OSI & gateway enabled protocols [value = 28].
/// </summary>
AF_NETDES = 28,
/// <summary>
/// [value = 29].
/// </summary>
AF_TCNPROCESS = 29,
/// <summary>
/// [value = 30].
/// </summary>
AF_TCNMESSAGE = 30,
/// <summary>
/// [value = 31].
/// </summary>
AF_ICLFXBM = 31
}
public enum SOCKET_TYPE : short
{
/// <summary>
/// stream socket
/// </summary>
SOCK_STREAM = 1,
/// <summary>
/// datagram socket
/// </summary>
SOCK_DGRAM = 2,
/// <summary>
/// raw-protocol interface
/// </summary>
SOCK_RAW = 3,
/// <summary>
/// reliably-delivered message
/// </summary>
SOCK_RDM = 4,
/// <summary>
/// sequenced packet stream
/// </summary>
SOCK_SEQPACKET = 5
}
public enum PROTOCOL : short
{//dummy for IP
IPPROTO_IP = 0,
//control message protocol
IPPROTO_ICMP = 1,
//internet group management protocol
IPPROTO_IGMP = 2,
//gateway^2 (deprecated)
IPPROTO_GGP = 3,
//tcp
IPPROTO_TCP = 6,
//pup
IPPROTO_PUP = 12,
//user datagram protocol
IPPROTO_UDP = 17,
//xns idp
IPPROTO_IDP = 22,
//IPv6
IPPROTO_IPV6 = 41,
//UNOFFICIAL net disk proto
IPPROTO_ND = 77,
IPPROTO_ICLFXBM = 78,
//raw IP packet
IPPROTO_RAW = 255,
IPPROTO_MAX = 256
}
public enum OPTION_FLAGS_PER_SOCKET : short
{
// turn on debugging info recording
SO_DEBUG = 0x0001,
// socket has had listen()
SO_ACCEPTCONN = 0x0002,
// allow local address reuse
SO_REUSEADDR = 0x0004,
// keep connections alive
SO_KEEPALIVE = 0x0008,
// just use interface addresses
SO_DONTROUTE = 0x0010,
// permit sending of broadcast msgs
SO_BROADCAST = 0x0020,
// bypass hardware when possible
SO_USELOOPBACK = 0x0040,
// linger on close if data present
SO_LINGER = 0x0080,
// leave received OOB data in line
SO_OOBINLINE = 0x0100,
SO_DONTLINGER = (int)(~SO_LINGER),
// disallow local address reuse
SO_EXCLUSIVEADDRUSE = ((int)(~SO_REUSEADDR)),
///*
// * Additional options.
// */
// send buffer size
SO_SNDBUF = 0x1001,
// receive buffer size
SO_RCVBUF = 0x1002,
// send low-water mark
SO_SNDLOWAT = 0x1003,
// receive low-water mark
SO_RCVLOWAT = 0x1004,
// send timeout
SO_SNDTIMEO = 0x1005,
// receive timeout
SO_RCVTIMEO = 0x1006,
// get error status and clear
SO_ERROR = 0x1007,
// get socket type
SO_TYPE = 0x1008,
///*
// * WinSock 2 extension -- new options
// */
// ID of a socket group
SO_GROUP_ID = 0x2001,
// the relative priority within a group
SO_GROUP_PRIORITY = 0x2002,
// maximum message size
SO_MAX_MSG_SIZE = 0x2003,
// WSAPROTOCOL_INFOA structure
SO_PROTOCOL_INFOA = 0x2004,
// WSAPROTOCOL_INFOW structure
SO_PROTOCOL_INFOW = 0x2005,
// configuration info for service provider
PVD_CONFIG = 0x3001,
// enable true conditional accept: connection is not ack-ed to the other side until conditional function returns CF_ACCEPT
SO_CONDITIONAL_ACCEPT = 0x3002
}
Alternative Managed API:
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Notes:
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Tips & Tricks:
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Sample Code:
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