Unit Winsock2

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Description

Ultibo Winsock2 Interface unit

Notes:

  • All BSD/Winsock functions that accept an Address or Port expect them to be in Network byte order.
  • All other functions that take an Address or Port expect them to be in Host byte order.

Constants


Winsock2 specific constants WINSOCK_*
WINSOCK_VERSION = $0202;  
 
WINSOCK_TCP_SERVER_THREAD_NAME = 'TCP Server'; Thread name for TCP server threads
WINSOCK_TCP_SERVER_THREAD_PRIORITY = THREAD_PRIORITY_NORMAL; Thread priority for TCP server threads
 
WINSOCK_TCP_LISTENER_THREAD_NAME = 'TCP Listener'; Thread name for TCP listener threads
WINSOCK_TCP_LISTENER_THREAD_PRIORITY = THREAD_PRIORITY_NORMAL; Thread priority for TCP listener threads
 
WINSOCK_UDP_SERVER_THREAD_NAME = 'UDP Server'; Thread name for UDP server threads
WINSOCK_UDP_SERVER_THREAD_PRIORITY = THREAD_PRIORITY_NORMAL; Thread priority for UDP server threads
 
WINSOCK_UDP_LISTENER_THREAD_NAME = 'UDP Listener'; Thread name for UDP listener threads
WINSOCK_UDP_LISTENER_THREAD_PRIORITY = THREAD_PRIORITY_NORMAL; Thread priority for UDP listener threads
 
FD_SETSIZE = GlobalSock.FD_SETSIZE;  
 
IOCPARM_MASK = GlobalSock.IOCPARM_MASK;  
IOC_VOID = GlobalSock.IOC_VOID;  
IOC_OUT = GlobalSock.IOC_OUT;  
IOC_IN = GlobalSock.IOC_IN;  
IOC_INOUT = GlobalSock.IOC_INOUT;  
 
FIONREAD = GlobalSock.FIONREAD;  
FIONBIO = GlobalSock.FIONBIO;  
FIOASYNC = GlobalSock.FIOASYNC;  
 
SIOCSHIWAT = GlobalSock.SIOCSHIWAT;  
SIOCGHIWAT = GlobalSock.SIOCGHIWAT;  
SIOCSLOWAT = GlobalSock.SIOCSLOWAT;  
SIOCGLOWAT = GlobalSock.SIOCGLOWAT;  
SIOCATMARK = GlobalSock.SIOCATMARK;  
 
IMPLINK_IP = GlobalSock.IMPLINK_IP;  
IMPLINK_LOWEXPER = GlobalSock.IMPLINK_LOWEXPER;  
IMPLINK_HIGHEXPER = GlobalSock.IMPLINK_HIGHEXPER;  
 
TF_DISCONNECT = GlobalSock.TF_DISCONNECT;  
TF_REUSE_SOCKET = GlobalSock.TF_REUSE_SOCKET;  
TF_WRITE_BEHIND = GlobalSock.TF_WRITE_BEHIND;  
 
INET_ADDRSTR_ANY = GlobalSock.INET_ADDRSTR_ANY;  
INET6_ADDRSTR_ANY = GlobalSock.INET6_ADDRSTR_ANY;  
 
INET_ADDRSTR_BROADCAST = GlobalSock.INET_ADDRSTR_BROADCAST;  
 
INET_ADDRSTRLEN = GlobalSock.INET_ADDRSTRLEN;  
INET6_ADDRSTRLEN = GlobalSock.INET6_ADDRSTRLEN;  
 
IN6ADDR_ANY_INIT:TIn6Addr = (u6_addr16: (0, 0, 0, 0, 0, 0, 0, 0));  
IN6ADDR_LOOPBACK_INIT:TIn6Addr = (u6_addr8: (0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1));  
 
INADDR_ANY = GlobalSock.INADDR_ANY;  
INADDR_LOOPBACK = GlobalSock.INADDR_LOOPBACK;  
INADDR_BROADCAST = GlobalSock.INADDR_BROADCAST;  
INADDR_NONE = GlobalSock.INADDR_NONE;  
 
IN6ADDR_ANY:TIn6Addr = (u6_addr16: (0, 0, 0, 0, 0, 0, 0, 0));  
IN6ADDR_LOOPBACK:TIn6Addr = (u6_addr8: (0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1));  
 
IN6ADDR_NONE:TIn6Addr = (u6_addr16: ($ffff, $ffff, $ffff, $ffff, $ffff, $ffff, $ffff, $ffff));  
 
Level number for (get/set)sockopt() to apply to socket itself
SOL_SOCKET = GlobalSock.SOL_SOCKET;  
 
Maximum queue length specifiable by listen
SOMAXCONN = GlobalSock.SOMAXCONN;  
 
Return flags
RESULT_IS_ALIAS = $0001;  
 
SERVICE_MULTIPLE = $00000001;  
 
BIGENDIAN = $0000;  
LITTLEENDIAN = $0001;  
 
SECURITY_PROTOCOL_NONE = $0000;  
 
This is used instead of -1, since the TSocket type is unsigned
INVALID_SOCKET = GlobalSock.INVALID_SOCKET;  
SOCKET_ERROR = GlobalSock.SOCKET_ERROR;  
 
Define constant based on rfc883, used by gethostbyxxxx() calls
MAXGETHOSTSTRUCT = GlobalSock.MAXGETHOSTSTRUCT;  
 
WSADESCRIPTION_LEN = GlobalSock.WSADESCRIPTION_LEN;  
WSASYS_STATUS_LEN = GlobalSock.WSASYS_STATUS_LEN;  
MAX_PROTOCOL_CHAIN = 7;  
BASE_PROTOCOL = 1;  
LAYERED_PROTOCOL = 0;  
WSAPROTOCOL_LEN = 255;  
 
WSARecvMsg flags
MSG_TRUNC = $0100;  
MSG_CTRUNC = $0200;  
MSG_BCAST = $0400;  
MSG_MCAST = $0800;  
 
Event flag definitions for WSAPoll()
POLLRDNORM = $0100;  
POLLRDBAND = $0200;  
POLLIN = (POLLRDNORM or POLLRDBAND);  
POLLPRI = $0400;  
 
POLLWRNORM = $0010;  
POLLOUT = (POLLWRNORM);  
POLLWRBAND = $0020;  
 
POLLERR = $0001;  
POLLHUP = $0002;  
POLLNVAL = $0004;  


IP protocol IPPROTO_*
IPPROTO_IP = GlobalSock.IPPROTO_IP;  
IPPROTO_ICMP = GlobalSock.IPPROTO_ICMP;  
IPPROTO_IGMP = GlobalSock.IPPROTO_IGMP;  
IPPROTO_GGP = GlobalSock.IPPROTO_GGP;  
IPPROTO_TCP = GlobalSock.IPPROTO_TCP;  
IPPROTO_EGP = GlobalSock.IPPROTO_EGP;  
IPPROTO_PUP = GlobalSock.IPPROTO_PUP;  
IPPROTO_UDP = GlobalSock.IPPROTO_UDP;  
IPPROTO_HMP = GlobalSock.IPPROTO_HMP;  
IPPROTO_IDP = GlobalSock.IPPROTO_IDP;  
IPPROTO_RDP = GlobalSock.IPPROTO_RDP;  
IPPROTO_IPV6 = GlobalSock.IPPROTO_IPV6;  
IPPROTO_ROUTING = GlobalSock.IPPROTO_ROUTING;  
IPPROTO_FRAGMENT = GlobalSock.IPPROTO_FRAGMENT;  
IPPROTO_ICMPV6 = GlobalSock.IPPROTO_ICMPV6;  
IPPROTO_RVD = GlobalSock.IPPROTO_RVD;  
IPPROTO_ND = GlobalSock.IPPROTO_ND;  
IPPROTO_RAW = GlobalSock.IPPROTO_RAW;  
IPPROTO_MAX = GlobalSock.IPPROTO_MAX;  


IP port IPPORT_*
Port/socket numbers: network standard functions
IPPORT_ANY = GlobalSock.IPPORT_ANY;  
IPPORT_ECHO = GlobalSock.IPPORT_ECHO;  
IPPORT_DISCARD = GlobalSock.IPPORT_DISCARD;  
IPPORT_SYSTAT = GlobalSock.IPPORT_SYSTAT;  
IPPORT_DAYTIME = GlobalSock.IPPORT_DAYTIME;  
IPPORT_NETSTAT = GlobalSock.IPPORT_NETSTAT;  
IPPORT_FTP = GlobalSock.IPPORT_FTP;  
IPPORT_TELNET = GlobalSock.IPPORT_TELNET;  
IPPORT_SMTP = GlobalSock.IPPORT_SMTP;  
IPPORT_TIMESERVER = GlobalSock.IPPORT_TIMESERVER;  
IPPORT_NAMESERVER = GlobalSock.IPPORT_NAMESERVER;  
IPPORT_WHOIS = GlobalSock.IPPORT_WHOIS;  
IPPORT_DNS = GlobalSock.IPPORT_DNS;  
IPPORT_MTP = GlobalSock.IPPORT_MTP;  
IPPORT_BOOTPS = GlobalSock.IPPORT_BOOTPS;  
IPPORT_BOOTPC = GlobalSock.IPPORT_BOOTPC;  
 
Port/socket numbers: host specific functions
IPPORT_TFTP = GlobalSock.IPPORT_TFTP;  
IPPORT_RJE = GlobalSock.IPPORT_RJE;  
IPPORT_FINGER = GlobalSock.IPPORT_FINGER;  
IPPORT_TTYLINK = GlobalSock.IPPORT_TTYLINK;  
IPPORT_SUPDUP = GlobalSock.IPPORT_SUPDUP;  
 
UNIX TCP sockets
IPPORT_EXECSERVER = GlobalSock.IPPORT_EXECSERVER;  
IPPORT_LOGINSERVER = GlobalSock.IPPORT_LOGINSERVER;  
IPPORT_CMDSERVER = GlobalSock.IPPORT_CMDSERVER;  
IPPORT_EFSSERVER = GlobalSock.IPPORT_EFSSERVER;  
 
UNIX UDP sockets
IPPORT_BIFFUDP = GlobalSock.IPPORT_BIFFUDP;  
IPPORT_WHOSERVER = GlobalSock.IPPORT_WHOSERVER;  
IPPORT_ROUTESERVER = GlobalSock.IPPORT_ROUTESERVER;  
 
Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root)
IPPORT_RESERVED = GlobalSock.IPPORT_RESERVED;  


IP option IP_*
Options for use with [gs]etsockopt at the IP level
 
IP_OPTIONS = GlobalSock.IP_OPTIONS;  
IP_MULTICAST_IF = GlobalSock.IP_MULTICAST_IF;  
IP_MULTICAST_TTL = GlobalSock.IP_MULTICAST_TTL;  
IP_MULTICAST_LOOP = GlobalSock.IP_MULTICAST_LOOP;  
IP_ADD_MEMBERSHIP = GlobalSock.IP_ADD_MEMBERSHIP;  
IP_DROP_MEMBERSHIP = GlobalSock.IP_DROP_MEMBERSHIP;  
IP_TTL = GlobalSock.IP_TTL;  
IP_TOS = GlobalSock.IP_TOS;  
IP_DONTFRAGMENT = GlobalSock.IP_DONTFRAGMENT;  
IP_HDRINCL = GlobalSock.IP_HDRINCL;  
 
IP_DEFAULT_MULTICAST_TTL = GlobalSock.IP_DEFAULT_MULTICAST_TTL;  
IP_DEFAULT_MULTICAST_LOOP = GlobalSock.IP_DEFAULT_MULTICAST_LOOP;  
IP_MAX_MEMBERSHIPS = GlobalSock.IP_MAX_MEMBERSHIPS;  


Socket type SOCK_*
SOCK_UNSPEC = GlobalSock.SOCK_UNSPEC;  
SOCK_STREAM = GlobalSock.SOCK_STREAM;  
SOCK_DGRAM = GlobalSock.SOCK_DGRAM;  
SOCK_RAW = GlobalSock.SOCK_RAW;  
SOCK_RDM = GlobalSock.SOCK_RDM;  
SOCK_SEQPACKET = GlobalSock.SOCK_SEQPACKET;  
SOCK_PACKET = GlobalSock.SOCK_PACKET;  


Socket option SO_*
SO_DEBUG = GlobalSock.SO_DEBUG;  
SO_ACCEPTCONN = GlobalSock.SO_ACCEPTCONN;  
SO_REUSEADDR = GlobalSock.SO_REUSEADDR;  
SO_KEEPALIVE = GlobalSock.SO_KEEPALIVE;  
SO_DONTROUTE = GlobalSock.SO_DONTROUTE;  
SO_BROADCAST = GlobalSock.SO_BROADCAST;  
SO_USELOOPBACK = GlobalSock.SO_USELOOPBACK;  
SO_LINGER = GlobalSock.SO_LINGER;  
SO_OOBINLINE = GlobalSock.SO_OOBINLINE;  
 
SO_DONTLINGER = GlobalSock.SO_DONTLINGER;  
SO_EXCLUSIVEADDRUSE = GlobalSock.SO_EXCLUSIVEADDRUSE;  
 
Additional options
SO_SNDBUF = GlobalSock.SO_SNDBUF;  
SO_RCVBUF = GlobalSock.SO_RCVBUF;  
SO_SNDLOWAT = GlobalSock.SO_SNDLOWAT;  
SO_RCVLOWAT = GlobalSock.SO_RCVLOWAT;  
SO_SNDTIMEO = GlobalSock.SO_SNDTIMEO;  
SO_RCVTIMEO = GlobalSock.SO_RCVTIMEO;  
SO_ERROR = GlobalSock.SO_ERROR;  
SO_TYPE = GlobalSock.SO_TYPE;  
SO_CONNTIMEO = GlobalSock.SO_CONNTIMEO;  
 
Options for connect and disconnect data and options. Used only by non-TCP/IP transports such as DECNet, OSI TP4, etc
SO_CONNDATA = GlobalSock.SO_CONNDATA;  
SO_CONNOPT = GlobalSock.SO_CONNOPT;  
SO_DISCDATA = GlobalSock.SO_DISCDATA;  
SO_DISCOPT = GlobalSock.SO_DISCOPT;  
SO_CONNDATALEN = GlobalSock.SO_CONNDATALEN;  
SO_CONNOPTLEN = GlobalSock.SO_CONNOPTLEN;  
SO_DISCDATALEN = GlobalSock.SO_DISCDATALEN;  
SO_DISCOPTLEN = GlobalSock.SO_DISCOPTLEN;  
 
Option for opening sockets for synchronous access
SO_OPENTYPE = GlobalSock.SO_OPENTYPE;  
SO_SYNCHRONOUS_ALERT = GlobalSock.SO_SYNCHRONOUS_ALERT;  
SO_SYNCHRONOUS_NONALERT = GlobalSock.SO_SYNCHRONOUS_NONALERT;  
 
Other NT-specific options
SO_MAXDG = GlobalSock.SO_MAXDG;  
SO_MAXPATHDG = GlobalSock.SO_MAXPATHDG;  
SO_UPDATE_ACCEPT_CONTEXT = GlobalSock.SO_UPDATE_ACCEPT_CONTEXT;  
SO_CONNECT_TIME = GlobalSock.SO_CONNECT_TIME;  


TCP option TCP_*
TCP_NODELAY= GlobalSock.TCP_NODELAY;  
TCP_MAXSEG = GlobalSock.TCP_MAXSEG;  
TCP_NOPUSH = GlobalSock.TCP_NOPUSH;  
TCP_NOOPT = GlobalSock.TCP_NOOPT;  
TCP_BSDURGENT = GlobalSock.TCP_BSDURGENT;  
 
TCP_WSCALE = GlobalSock.TCP_WSCALE;  
TCP_NOSACK = GlobalSock.TCP_NOSACK;  


UDP option UDP_*
UDP_NOCHECKSUM = GlobalSock.UDP_NOCHECKSUM;  


Address family AF_*
AF_UNSPEC = GlobalSock.AF_UNSPEC;  
AF_UNIX = GlobalSock.AF_UNIX;  
AF_INET = GlobalSock.AF_INET;  
AF_IMPLINK = GlobalSock.AF_IMPLINK;  
AF_PUP = GlobalSock.AF_PUP;  
AF_CHAOS = GlobalSock.AF_CHAOS;  
AF_IPX = GlobalSock.AF_IPX;  
AF_NS = GlobalSock.AF_NS;  
AF_ISO = GlobalSock.AF_ISO;  
AF_OSI = GlobalSock.AF_OSI;  
AF_ECMA = GlobalSock.AF_ECMA;  
AF_DATAKIT = GlobalSock.AF_DATAKIT;  
AF_CCITT = GlobalSock.AF_CCITT;  
AF_SNA = GlobalSock.AF_SNA;  
AF_DECnet = GlobalSock.AF_DECnet;  
AF_DLI = GlobalSock.AF_DLI;  
AF_LAT = GlobalSock.AF_LAT;  
AF_HYLINK = GlobalSock.AF_HYLINK;  
AF_APPLETALK = GlobalSock.AF_APPLETALK;  
AF_NETBIOS = GlobalSock.AF_NETBIOS;  
AF_VOICEVIEW = GlobalSock.AF_VOICEVIEW;  
AF_FIREFOX = GlobalSock.AF_FIREFOX;  
AF_UNKNOWN1 = GlobalSock.AF_UNKNOWN1;  
AF_BAN = GlobalSock.AF_BAN;  
AF_ATM = GlobalSock.AF_ATM;  
AF_INET6 = GlobalSock.AF_INET6;  
AF_CLUSTER = GlobalSock.AF_CLUSTER;  
AF_12844 = GlobalSock.AF_12844;  
AF_IRDA = GlobalSock.AF_IRDA;  
AF_NETDES = GlobalSock.AF_NETDES;  
 
AF_MAX = GlobalSock.AF_MAX;  


Protocol family PF_*
PF_UNSPEC = GlobalSock.PF_UNSPEC;  
PF_UNIX = GlobalSock.PF_UNIX;  
PF_INET = GlobalSock.PF_INET;  
PF_IMPLINK = GlobalSock.PF_IMPLINK;  
PF_PUP = GlobalSock.PF_PUP;  
PF_CHAOS = GlobalSock.PF_CHAOS;  
PF_NS = GlobalSock.PF_NS;  
PF_IPX = GlobalSock.PF_IPX;  
PF_ISO = GlobalSock.PF_ISO;  
PF_OSI = GlobalSock.PF_OSI;  
PF_ECMA = GlobalSock.PF_ECMA;  
PF_DATAKIT = GlobalSock.PF_DATAKIT;  
PF_CCITT = GlobalSock.PF_CCITT;  
PF_SNA = GlobalSock.PF_SNA;  
PF_DECnet = GlobalSock.PF_DECnet;  
PF_DLI = GlobalSock.PF_DLI;  
PF_LAT = GlobalSock.PF_LAT;  
PF_HYLINK = GlobalSock.PF_HYLINK;  
PF_APPLETALK = GlobalSock.PF_APPLETALK;  
PF_VOICEVIEW = GlobalSock.PF_VOICEVIEW;  
PF_FIREFOX = GlobalSock.PF_FIREFOX;  
PF_UNKNOWN1 = GlobalSock.PF_UNKNOWN1;  
PF_BAN = GlobalSock.PF_BAN;  
PF_ATM = GlobalSock.PF_ATM;  
PF_INET6 = GlobalSock.PF_INET6;  
PF_CLUSTER = GlobalSock.PF_CLUSTER;  
PF_12844 = GlobalSock.PF_12844;  
PF_IRDA = GlobalSock.PF_IRDA;  
PF_NETDES = GlobalSock.PF_NETDES;  
 
PF_MAX = GlobalSock.PF_MAX;  


Message flag MSG_*
MSG_OOB = GlobalSock.MSG_OOB;  
MSG_PEEK = GlobalSock.MSG_PEEK;  
MSG_DONTROUTE = GlobalSock.MSG_DONTROUTE;  
MSG_WAITALL = GlobalSock.MSG_WAITALL;  
 
MSG_INTERRUPT = GlobalSock.MSG_INTERRUPT;  
MSG_MAXIOVLEN = GlobalSock.MSG_MAXIOVLEN;  
 
MSG_PARTIAL = GlobalSock.MSG_PARTIAL;  


FD option FD_*
WinSock 2 extension -- bit values and indices for FD_XXX network events
 
FD_READ_BIT = 0;  
FD_READ = (1 shl FD_READ_BIT);  
FD_WRITE_BIT = 1;  
FD_WRITE = (1 shl FD_WRITE_BIT);  
FD_OOB_BIT = 2;  
FD_OOB = (1 shl FD_OOB_BIT);  
FD_ACCEPT_BIT = 3;  
FD_ACCEPT = (1 shl FD_ACCEPT_BIT);  
FD_CONNECT_BIT = 4;  
FD_CONNECT = (1 shl FD_CONNECT_BIT);  
FD_CLOSE_BIT = 5;  
FD_CLOSE = (1 shl FD_CLOSE_BIT);  
FD_QOS_BIT = 6;  
FD_QOS = (1 shl FD_QOS_BIT);  
FD_GROUP_QOS_BIT = 7;  
FD_GROUP_QOS = (1 shl FD_GROUP_QOS_BIT);  
FD_MAX_EVENTS = 8;  
FD_ALL_EVENTS = ((1 shl FD_MAX_EVENTS) - 1);  


Socket error WSAE*
All Windows Sockets error constants are biased by WSABASEERR from the "normal"
 
WSABASEERR = GlobalSock.WSABASEERR;  
 
Windows Sockets definitions of regular Microsoft C error constants
WSAEINTR = GlobalSock.WSAEINTR;  
WSAEBADF = GlobalSock.WSAEBADF;  
WSAEACCES = GlobalSock.WSAEACCES;  
WSAEFAULT = GlobalSock.WSAEFAULT;  
WSAEINVAL = GlobalSock.WSAEINVAL;  
WSAEMFILE = GlobalSock.WSAEMFILE;  
 
Windows Sockets definitions of regular Berkeley error constants
WSAEWOULDBLOCK = GlobalSock.WSAEWOULDBLOCK;  
WSAEINPROGRESS = GlobalSock.WSAEINPROGRESS;  
WSAEALREADY = GlobalSock.WSAEALREADY;  
WSAENOTSOCK = GlobalSock.WSAENOTSOCK;  
WSAEDESTADDRREQ = GlobalSock.WSAEDESTADDRREQ;  
WSAEMSGSIZE = GlobalSock.WSAEMSGSIZE;  
WSAEPROTOTYPE = GlobalSock.WSAEPROTOTYPE;  
WSAENOPROTOOPT = GlobalSock.WSAENOPROTOOPT;  
WSAEPROTONOSUPPORT = GlobalSock.WSAEPROTONOSUPPORT;  
WSAESOCKTNOSUPPORT = GlobalSock.WSAESOCKTNOSUPPORT;  
WSAEOPNOTSUPP = GlobalSock.WSAEOPNOTSUPP;  
WSAEPFNOSUPPORT = GlobalSock.WSAEPFNOSUPPORT;  
WSAEAFNOSUPPORT = GlobalSock.WSAEAFNOSUPPORT;  
WSAEADDRINUSE = GlobalSock.WSAEADDRINUSE;  
WSAEADDRNOTAVAIL = GlobalSock.WSAEADDRNOTAVAIL;  
WSAENETDOWN = GlobalSock.WSAENETDOWN;  
WSAENETUNREACH = GlobalSock.WSAENETUNREACH;  
WSAENETRESET = GlobalSock.WSAENETRESET;  
WSAECONNABORTED = GlobalSock.WSAECONNABORTED;  
WSAECONNRESET = GlobalSock.WSAECONNRESET;  
WSAENOBUFS = GlobalSock.WSAENOBUFS;  
WSAEISCONN = GlobalSock.WSAEISCONN;  
WSAENOTCONN = GlobalSock.WSAENOTCONN;  
WSAESHUTDOWN = GlobalSock.WSAESHUTDOWN;  
WSAETOOMANYREFS = GlobalSock.WSAETOOMANYREFS;  
WSAETIMEDOUT = GlobalSock.WSAETIMEDOUT;  
WSAECONNREFUSED = GlobalSock.WSAECONNREFUSED;  
WSAELOOP = GlobalSock.WSAELOOP;  
WSAENAMETOOLONG = GlobalSock.WSAENAMETOOLONG;  
WSAEHOSTDOWN = GlobalSock.WSAEHOSTDOWN;  
WSAEHOSTUNREACH = GlobalSock.WSAEHOSTUNREACH;  
WSAENOTEMPTY = GlobalSock.WSAENOTEMPTY;  
WSAEPROCLIM = GlobalSock.WSAEPROCLIM;  
WSAEUSERS = GlobalSock.WSAEUSERS;  
WSAEDQUOT = GlobalSock.WSAEDQUOT;  
WSAESTALE = GlobalSock.WSAESTALE;  
WSAEREMOTE = GlobalSock.WSAEREMOTE;  
 
WSAEDISCON = GlobalSock.WSAEDISCON;  
 
Extended Windows Sockets error constant definitions
WSASYSNOTREADY = GlobalSock.WSASYSNOTREADY;  
WSAVERNOTSUPPORTED = GlobalSock.WSAVERNOTSUPPORTED;  
WSANOTINITIALISED = GlobalSock.WSANOTINITIALISED;  
 
WSAENOMORE = GlobalSock.WSAENOMORE;  
WSAECANCELLED = GlobalSock.WSAECANCELLED;  
WSAEINVALIDPROCTABLE = GlobalSock.WSAEINVALIDPROCTABLE;  
WSAEINVALIDPROVIDER = GlobalSock.WSAEINVALIDPROVIDER;  
WSAEPROVIDERFAILEDINIT = GlobalSock.WSAEPROVIDERFAILEDINIT;  
WSASYSCALLFAILURE = GlobalSock.WSASYSCALLFAILURE;  
WSASERVICE_NOT_FOUND = GlobalSock.WSASERVICE_NOT_FOUND;  
WSATYPE_NOT_FOUND = GlobalSock.WSATYPE_NOT_FOUND;  
WSA_E_NO_MORE = GlobalSock.WSA_E_NO_MORE;  
WSA_E_CANCELLED = GlobalSock.WSA_E_CANCELLED;  
WSAEREFUSED = GlobalSock.WSAEREFUSED;  
 
Error return codes from gethostbyname() and gethostbyaddr() (when using the resolver). Note that these errors are retrieved via WSAGetLastError() and must therefore follow the rules for avoiding clashes with error numbers from specific implementations or language run-time systems. For this reason the codes are based at WSABASEERR+1001. Note also that [WSA]NO_ADDRESS is defined only for compatibility purposes.
 
Authoritative Answer: Host not found
WSAHOST_NOT_FOUND = GlobalSock.WSAHOST_NOT_FOUND;  
HOST_NOT_FOUND = GlobalSock.HOST_NOT_FOUND;  
 
Non-Authoritative: Host not found, or SERVERFAIL
WSATRY_AGAIN = GlobalSock.WSATRY_AGAIN;  
TRY_AGAIN = GlobalSock.TRY_AGAIN;  
 
Non recoverable errors, FORMERR, REFUSED, NOTIMP
WSANO_RECOVERY = GlobalSock.WSANO_RECOVERY;  
NO_RECOVERY = GlobalSock.NO_RECOVERY;  
 
Valid name, no data record of requested type
WSANO_DATA = GlobalSock.WSANO_DATA;  
NO_DATA = GlobalSock.NO_DATA;  
 
no address, look for MX record
WSANO_ADDRESS = GlobalSock.WSANO_ADDRESS;  
NO_ADDRESS = GlobalSock.NO_ADDRESS;  
 
WinSock 2 extension -- new error codes and type definition
WSA_IO_PENDING = GlobalSock.WSA_IO_PENDING;  
WSA_IO_INCOMPLETE = GlobalSock.WSA_IO_INCOMPLETE;  
WSA_INVALID_HANDLE = GlobalSock.WSA_INVALID_HANDLE;  
WSA_INVALID_PARAMETER = GlobalSock.WSA_INVALID_PARAMETER;  
WSA_NOT_ENOUGH_MEMORY = GlobalSock.WSA_NOT_ENOUGH_MEMORY;  
WSA_OPERATION_ABORTED = GlobalSock.WSA_OPERATION_ABORTED;  
WSA_INVALID_EVENT = GlobalSock.WSA_INVALID_EVENT;  
WSA_MAXIMUM_WAIT_EVENTS = GlobalSock.WSA_MAXIMUM_WAIT_EVENTS;  
WSA_WAIT_FAILED = GlobalSock.WSA_WAIT_FAILED;  
WSA_WAIT_EVENT_0 = GlobalSock.WSA_WAIT_EVENT_0;  
WSA_WAIT_IO_COMPLETION = GlobalSock.WSA_WAIT_IO_COMPLETION;  
WSA_WAIT_TIMEOUT = GlobalSock.WSA_WAIT_TIMEOUT;  
WSA_INFINITE = GlobalSock.WSA_INFINITE;  
 
Windows Sockets errors redefined as regular Berkeley error constants. These are commented out in Windows NT to avoid conflicts with errno.h. Use the WSA constants instead.
EWOULDBLOCK = GlobalSock.EWOULDBLOCK;  
EINPROGRESS = GlobalSock.EINPROGRESS;  
EALREADY = GlobalSock.EALREADY;  
ENOTSOCK = GlobalSock.ENOTSOCK;  
EDESTADDRREQ = GlobalSock.EDESTADDRREQ;  
EMSGSIZE = GlobalSock.EMSGSIZE;  
EPROTOTYPE = GlobalSock.EPROTOTYPE;  
ENOPROTOOPT = GlobalSock.ENOPROTOOPT;  
EPROTONOSUPPORT = GlobalSock.EPROTONOSUPPORT;  
ESOCKTNOSUPPORT = GlobalSock.ESOCKTNOSUPPORT;  
EOPNOTSUPP = GlobalSock.EOPNOTSUPP;  
EPFNOSUPPORT = GlobalSock.EPFNOSUPPORT;  
EAFNOSUPPORT = GlobalSock.EAFNOSUPPORT;  
EADDRINUSE = GlobalSock.EADDRINUSE;  
EADDRNOTAVAIL = GlobalSock.EADDRNOTAVAIL;  
ENETDOWN = GlobalSock.ENETDOWN;  
ENETUNREACH = GlobalSock.ENETUNREACH;  
ENETRESET = GlobalSock.ENETRESET;  
ECONNABORTED = GlobalSock.ECONNABORTED;  
ECONNRESET = GlobalSock.ECONNRESET;  
ENOBUFS = GlobalSock.ENOBUFS;  
EISCONN = GlobalSock.EISCONN;  
ENOTCONN = GlobalSock.ENOTCONN;  
ESHUTDOWN = GlobalSock.ESHUTDOWN;  
ETOOMANYREFS = GlobalSock.ETOOMANYREFS;  
ETIMEDOUT = GlobalSock.ETIMEDOUT;  
ECONNREFUSED = GlobalSock.ECONNREFUSED;  
ELOOP = GlobalSock.ELOOP;  
ENAMETOOLONG = GlobalSock.ENAMETOOLONG;  
EHOSTDOWN = GlobalSock.EHOSTDOWN;  
EHOSTUNREACH = GlobalSock.EHOSTUNREACH;  
ENOTEMPTY = GlobalSock.ENOTEMPTY;  
EPROCLIM = GlobalSock.EPROCLIM;  
EUSERS = GlobalSock.EUSERS;  
EDQUOT = GlobalSock.EDQUOT;  
ESTALE = GlobalSock.ESTALE;  
EREMOTE = GlobalSock.EREMOTE;  
 
ENOTREADY = GlobalSock.ENOTREADY;  
EVERNOTSUPPORTED = GlobalSock.EVERNOTSUPPORTED;  
ENOTINITIALISED = GlobalSock.ENOTINITIALISED;  
 
Error codes from getaddrinfo()
EAI_AGAIN = GlobalSock.EAI_AGAIN;  
EAI_BADFLAGS = GlobalSock.EAI_BADFLAGS;  
EAI_FAIL = GlobalSock.EAI_FAIL;  
EAI_FAMILY = GlobalSock.EAI_FAMILY;  
EAI_MEMORY = GlobalSock.EAI_MEMORY;  
EAI_NODATA = GlobalSock.EAI_NODATA;  
EAI_NONAME = GlobalSock.EAI_NONAME;  
EAI_SERVICE = GlobalSock.EAI_SERVICE;  
EAI_SOCKTYPE = GlobalSock.EAI_SOCKTYPE;  
 
EAI_NODATA = GlobalSock.EAI_NODATA;  


Condition function value CF_*
WinSock 2 extension -- manifest constants for return values of the condition function
 
CF_ACCEPT = $0000;  
CF_REJECT = $0001;  
CF_DEFER = $0002;  


Shutdown option SD_*
WinSock 2 extension -- manifest constants for shutdown()
 
SD_RECEIVE = GlobalSock.SD_RECEIVE;  
SD_SEND = GlobalSock.SD_SEND;  
SD_BOTH = GlobalSock.SD_BOTH;  


Socket group SG_*
WinSock 2 extension -- data type and manifest constants for socket groups
 
SG_UNCONSTRAINED_GROUP = $01;  
SG_CONSTRAINED_GROUP = $02;  


Provider flag PFL_*
Flag bit definitions for dwProviderFlags */
 
PFL_MULTIPLE_PROTO_ENTRIES = $00000001;  
PFL_RECOMMENDED_PROTO_ENTRY = $00000002;  
PFL_HIDDEN = $00000004;  
PFL_MATCHES_PROTOCOL_ZERO = $00000008;  


Service flag XP1_*
 Flag bit definitions for dwServiceFlags1 */
 
XP1_CONNECTIONLESS = $00000001;  
XP1_GUARANTEED_DELIVERY = $00000002;  
XP1_GUARANTEED_ORDER = $00000004;  
XP1_MESSAGE_ORIENTED = $00000008;  
XP1_PSEUDO_STREAM = $00000010;  
XP1_GRACEFUL_CLOSE = $00000020;  
XP1_EXPEDITED_DATA = $00000040;  
XP1_CONNECT_DATA = $00000080;  
XP1_DISCONNECT_DATA = $00000100;  
XP1_SUPPORT_BROADCAST = $00000200;  
XP1_SUPPORT_MULTIPOINT = $00000400;  
XP1_MULTIPOINT_CONTROL_PLANE = $00000800;  
XP1_MULTIPOINT_DATA_PLANE = $00001000;  
XP1_QOS_SUPPORTED = $00002000;  
XP1_INTERRUPT = $00004000;  
XP1_UNI_SEND = $00008000;  
XP1_UNI_RECV = $00010000;  
XP1_IFS_HANDLES = $00020000;  
XP1_PARTIAL_MESSAGE = $00040000;  


Join leaf option JL_*
WinSock 2 extension -- manifest constants for WSAJoinLeaf()
 
JL_SENDER_ONLY = $01;  
JL_RECEIVER_ONLY = $02;  
JL_BOTH = $04;  


Socket flag WSA_FLAG_*
WinSock 2 extension -- manifest constants for WSASocket()
 
WSA_FLAG_OVERLAPPED = GlobalSock.WSA_FLAG_OVERLAPPED;  
WSA_FLAG_MULTIPOINT_C_ROOT = GlobalSock.WSA_FLAG_MULTIPOINT_C_ROOT;  
WSA_FLAG_MULTIPOINT_C_LEAF = GlobalSock.WSA_FLAG_MULTIPOINT_C_LEAF;  
WSA_FLAG_MULTIPOINT_D_ROOT = GlobalSock.WSA_FLAG_MULTIPOINT_D_ROOT;  
WSA_FLAG_MULTIPOINT_D_LEAF = GlobalSock.WSA_FLAG_MULTIPOINT_D_LEAF;  


Socket IOC option IOC_*
WinSock 2 extension -- manifest constants for WSAIoctl()
 
IOC_UNIX = $00000000;  
IOC_WS2 = $08000000;  
IOC_PROTOCOL = $10000000;  
IOC_VENDOR = $18000000;  


SIO option SIO_*
SIO_ASSOCIATE_HANDLE = IOC_IN or IOC_WS2 or 1;  
SIO_ENABLE_CIRCULAR_QUEUEING = IOC_WS2 or 2;  
SIO_FIND_ROUTE = IOC_OUT or IOC_WS2 or 3;  
SIO_FLUSH = IOC_WS2 or 4;  
SIO_GET_BROADCAST_ADDRESS = IOC_OUT or IOC_WS2 or 5;  
SIO_GET_EXTENSION_FUNCTION_POINTER = IOC_INOUT or IOC_WS2 or 6;  
SIO_GET_QOS = IOC_INOUT or IOC_WS2 or 7;  
SIO_GET_GROUP_QOS = IOC_INOUT or IOC_WS2 or 8;  
SIO_MULTIPOINT_LOOPBACK = IOC_IN or IOC_WS2 or 9;  
SIO_MULTICAST_SCOPE = IOC_IN or IOC_WS2 or 10;  
SIO_SET_QOS = IOC_IN or IOC_WS2 or 11;  
SIO_SET_GROUP_QOS = IOC_IN or IOC_WS2 or 12;  
SIO_TRANSLATE_HANDLE = IOC_INOUT or IOC_WS2 or 13;  
 
WinSock 2 extension -- manifest constants for SIO_TRANSLATE_HANDLE ioctl
TH_NETDEV = $00000001;  
TH_TAPI = $00000002;  


Name space NS_*
NS_ALL = (0);  
 
NS_SAP = (1);  
NS_NDS = (2);  
NS_PEER_BROWSE = (3);  
 
NS_TCPIP_LOCAL = (10);  
NS_TCPIP_HOSTS = (11);  
NS_DNS = (12);  
NS_NETBT = (13);  
NS_WINS = (14);  
 
NS_NBP = (20);  
 
NS_MS = (30);  
NS_STDA = (31);  
NS_NTDS = (32);  
 
NS_X500 = (40);  
NS_NIS = (41);  
NS_NISPLUS = (42);  
 
NS_WRQ = (50);  


Resolution flag RES_*
Resolution flags for WSAGetAddressByName() Note these are also used by the 1.1 API GetAddressByName, so leave them around.
 
RES_UNUSED_1 = $00000001;  
RES_FLUSH_CACHE = $00000002;  
RES_SERVICE = $00000004;  


Service type value SERVICE_TYPE_*
Well known value names for Service Types
 
SERVICE_TYPE_VALUE_IPXPORTA = 'IpxSocket'; SERVICE_TYPE_VALUE_IPXPORTW : PWideChar = 'IpxSocket';
 
SERVICE_TYPE_VALUE_SAPIDA = 'SapId'; SERVICE_TYPE_VALUE_SAPIDW : PWideChar = 'SapId';
 
SERVICE_TYPE_VALUE_TCPPORTA = 'TcpPort'; SERVICE_TYPE_VALUE_TCPPORTW : PWideChar = 'TcpPort';
 
SERVICE_TYPE_VALUE_UDPPORTA = 'UdpPort'; SERVICE_TYPE_VALUE_UDPPORTW : PWideChar = 'UdpPort';
 
SERVICE_TYPE_VALUE_OBJECTIDA = 'ObjectId'; SERVICE_TYPE_VALUE_OBJECTIDW : PWideChar = 'ObjectId';
 
SERVICE_TYPE_VALUE_SAPID = SERVICE_TYPE_VALUE_SAPIDA;  
SERVICE_TYPE_VALUE_TCPPORT = SERVICE_TYPE_VALUE_TCPPORTA;  
SERVICE_TYPE_VALUE_UDPPORT = SERVICE_TYPE_VALUE_UDPPORTA;  
SERVICE_TYPE_VALUE_OBJECTID = SERVICE_TYPE_VALUE_OBJECTIDA;  
 
WinSock 2 extension -- WSABUF and QOS struct, include qos.h to pull in FLOWSPEC and related definitions
SERVICETYPE_NOTRAFFIC = $00000000; No data in this direction
SERVICETYPE_BESTEFFORT = $00000001; Best Effort
SERVICETYPE_CONTROLLEDLOAD = $00000002; Controlled Load
SERVICETYPE_GUARANTEED = $00000003; Guaranteed
SERVICETYPE_NETWORK_UNAVAILABLE = $00000004; Used to notify change to user
SERVICETYPE_GENERAL_INFORMATION = $00000005; Corresponds to "General Parameters" defined by IntServ
SERVICETYPE_NOCHANGE = $00000006; Used to indicate that the flow spec contains no change from any previous one
 
SERVICE_IMMEDIATE_TRAFFIC_CONTROL = $80000000; To turn on immediate traffic control, OR this flag with the ServiceType field in teh FLOWSPEC


LUP option LUP_*
LUP_DEEP = $0001;  
LUP_CONTAINERS = $0002;  
LUP_NOCONTAINERS = $0004;  
LUP_NEAREST = $0008;  
LUP_RETURN_NAME = $0010;  
LUP_RETURN_TYPE = $0020;  
LUP_RETURN_VERSION = $0040;  
LUP_RETURN_COMMENT = $0080;  
LUP_RETURN_ADDR = $0100;  
LUP_RETURN_BLOB = $0200;  
LUP_RETURN_ALIASES = $0400;  
LUP_RETURN_QUERY_STRING = $0800;  
LUP_RETURN_ALL = $0FF0;  
LUP_RES_SERVICE = $8000;  
 
LUP_FLUSHCACHE = $1000;  
LUP_FLUSHPREVIOUS = $2000;  


Address info flag AI_*
Flags used in "hints" argument to getaddrinfo()
Note: Under Linux these values may be different
 
AI_PASSIVE = GlobalSock.AI_PASSIVE;  
AI_CANONNAME = GlobalSock.AI_CANONNAME;  
AI_NUMERICHOST = GlobalSock.AI_NUMERICHOST;  
AI_NUMERICSERV = GlobalSock.AI_NUMERICSERV;  
AI_ALL = GlobalSock.AI_ALL;  
AI_ADDRCONFIG = GlobalSock.AI_ADDRCONFIG;  
AI_V4MAPPED = GlobalSock.AI_V4MAPPED;  
AI_NON_AUTHORITATIVE = GlobalSock.AI_NON_AUTHORITATIVE;  
AI_SECURE = GlobalSock.AI_SECURE;  
AI_RETURN_PREFERRED_NAMES = GlobalSock.AI_RETURN_PREFERRED_NAMES;  
AI_FQDN = GlobalSock.AI_FQDN;  
AI_FILESERVER = GlobalSock.AI_FILESERVER;  


Name info flag NI_*
Flags for getnameinfo()
 
NI_NOFQDN = GlobalSock.NI_NOFQDN;  
NI_NUMERICHOST = GlobalSock.NI_NUMERICHOST;  
NI_NAMEREQD = GlobalSock.NI_NAMEREQD;  
NI_NUMERICSERV = GlobalSock.NI_NUMERICSERV;  
NI_DGRAM = GlobalSock.NI_DGRAM;  
 
NI_MAXHOST = GlobalSock.NI_MAXHOST;  
NI_MAXSERV = GlobalSock.NI_MAXSERV;  


Type definitions

See globalsock.pas

Class definitions


Base socket classes

TWinsock2Socket = class(TListObject)
TWinsock2SocketThread = class(TThreadEx)
TWinsock2SocketThreads = class(TObject)
TWinsock2SocketBuffer = class(TObject)
TWinsock2SocketBuffers = class(TObject)

Raw socket (SOCK_RAW) classes

TWinsock2RAWSocket = class(TWinsock2Socket)

Stream socket (SOCK_STREAM) classes

TWinsock2TCPSocket = class(TWinsock2Socket)

Datagram socket (SOCK_DGRAM) classes

TWinsock2UDPSocket = class(TWinsock2Socket)

Raw client classes

TWinsock2RAWClient = class(TWinsock2RAWSocket)

Stream client classes

TWinsock2TCPClient = class(TWinsock2TCPSocket)

Datagram client classes

TWinsock2UDPClient = class(TWinsock2UDPSocket)

Stream server classes

TWinsock2TCPServer = class(TWinsock2TCPSocket)
TWinsock2TCPServerThread = class(TWinsock2SocketThread)
TWinsock2TCPListenerThread = class(TWinsock2SocketThread)
TWinsock2TCPServerThreads = class(TWinsock2SocketThreads)
TWinsock2TCPListener = class(TWinsock2TCPSocket)

Datagram server classes

TWinsock2UDPServer = class(TWinsock2UDPSocket)
TWinsock2UDPServerThread = class(TWinsock2SocketThread)
TWinsock2UDPListenerThread = class(TWinsock2SocketThread)
TWinsock2UDPServerThreads = class(TWinsock2SocketThreads)
TWinsock2UDPServerBuffer = class(TWinsock2SocketBuffer)
TWinsock2UDPServerBuffers = class(TWinsock2SocketBuffers)
TWinsock2UDPListener = class(TWinsock2UDPSocket)


Public variables

None defined

Function declarations


Initialization functions 

procedure WS2Init;
Description: To be documented
Note None documented 


function WS2Start:Boolean;
Description: To be documented
Note None documented 


function WS2Stop:Boolean;
Description: To be documented
Note None documented 


procedure WS2AsyncStart(Data:Pointer);
Description: To be documented
Note None documented


Winsock2 functions 

function accept( const s: TSocket; addr: PSockAddr; addrlen: PLongint ): TSocket;
Description: Accept an incoming connection attempt on a socket
Note See the Windows Sockets 2 documentation for additional information 


function accept( const s: TSocket; addr: PSockAddr; var addrlen: Longint ): TSocket;
Description: Accept an incoming connection attempt on a socket
Note See the Windows Sockets 2 documentation for additional information 


function bind( const s: TSocket; addr: PSockAddr; namelen: Longint ): Longint;
Description: Associate a local address with a socket
Note See the Windows Sockets 2 documentation for additional information 


function bind( const s: TSocket; var addr: TSockAddr; namelen: Longint ): Longint;
Description: Associate a local address with a socket
Note See the Windows Sockets 2 documentation for additional information 


function closesocket( const s: TSocket ): Longint;
Description: Close an existing socket
Note See the Windows Sockets 2 documentation for additional information 


function connect( const s: TSocket; name: PSockAddr; namelen: Longint): Longint;
Description: Establish a connection to a specified socket
Note See the Windows Sockets 2 documentation for additional information 


function connect( const s: TSocket; var name: TSockAddr; namelen: Longint): Longint;
Description: Establish a connection to a specified socket
Note See the Windows Sockets 2 documentation for additional information 


function ioctlsocket( const s: TSocket; cmd: Longint; var arg: u_long ): Longint;
Description: Control the I/O mode of a socket
Note See the Windows Sockets 2 documentation for additional information 


function ioctlsocket( const s: TSocket; cmd: Longint; argp: pu_long ): Longint;
Description: Control the I/O mode of a socket
Note See the Windows Sockets 2 documentation for additional information 


function getpeername( const s: TSocket; var name: TSockAddr; var namelen: Longint ): Longint;
Description: Retrieve the address of the peer to which a socket is connected
Note See the Windows Sockets 2 documentation for additional information 


function getsockname( const s: TSocket; var name: TSockAddr; var namelen: Longint ): Longint;
Description: Retrieve the local name for a socket
Note See the Windows Sockets 2 documentation for additional information 


function getsockopt( const s: TSocket; const level, optname: Longint; optval: PChar; var optlen: Longint ): Longint;
Description: Retrieve a socket option
Note See the Windows Sockets 2 documentation for additional information 


function getsockopt( const s: TSocket; const level, optname: Longint; optval: Pointer; var optlen: Longint ): Longint;
Description: Retrieve a socket option
Note See the Windows Sockets 2 documentation for additional information 


function getsockopt( const s: TSocket; const level, optname: Longint; var optval; var optlen: Longint ): Longint;
Description: Retrieve a socket option
Note See the Windows Sockets 2 documentation for additional information 


function htond(hostdouble: Double): UInt64;
Description: Convert a double from host byte order to TCP/IP network byte order (which is big-endian)
Note See the Windows Sockets 2 documentation for additional information 


function htonf(hostfloat: Single): UInt32;
Description: Convert a float from host byte order to TCP/IP network byte order (which is big-endian)
Note See the Windows Sockets 2 documentation for additional information 


function htonl(hostlong: u_long): u_long;
Description: Convert a u_long from host byte order to TCP/IP network byte order (which is big-endian)
Note See the Windows Sockets 2 documentation for additional information} 


function htonll(hostlonglong: UInt64): UInt64;
Description: Convert an unsigned int64 from host byte order to TCP/IP network byte order (which is big-endian)
Note See the Windows Sockets 2 documentation for additional information} 


function htons(hostshort: u_short): u_short;
Description: Convert a u_short from host byte order to TCP/IP network byte order (which is big-endian)
Note See the Windows Sockets 2 documentation for additional information 


function inet_addr(cp: PChar): u_long;
Description: Convert a string containing an IPv4 dotted-decimal address into a proper address for the IN_ADDR structure
Note Address will be returned in network byte order.

See the Windows Sockets 2 documentation for additional information 


function inet_ntoa(inaddr: TInAddr): PChar;
Description: Convert an (IPv4) Internet network address into an ASCII string in Internet standard dotted-decimal format
Note As per the Winsock specification, the buffer returned by this function is only guaranteed to be valid until the next Winsock function call is made within the same thread. Therefore, the data should be copied before another Winsock call.

Address will be in network byte order. See the Windows Sockets 2 documentation for additional information. 


function listen(s: TSocket; backlog: Longint): Longint;
Description: Place a socket in a state in which it is listening for incoming connections
Note See the Windows Sockets 2 documentation for additional information 


function ntohd(netdouble: UInt64): Double;
Description: Convert an unsigned int64 from TCP/IP network byte order to host byte order and return a double
Note See the Windows Sockets 2 documentation for additional information 


function ntohf(netfloat: UInt32): Single;
Description: Convert an unsigned int32 from TCP/IP network byte order to host byte order and return a float
Note See the Windows Sockets 2 documentation for additional information 


function ntohl(netlong: u_long): u_long;
Description: Convert a u_long from TCP/IP network byte order to host byte order
Note See the Windows Sockets 2 documentation for additional information 


function ntohll(netlonglong: UInt64): UInt64;
Description: Convert an unsigned nt64 from TCP/IP network byte order to host byte order
Note See the Windows Sockets 2 documentation for additional information 


function ntohs(netshort: u_short): u_short;
Description: Convert a u_short from TCP/IP network byte order to host byte order
Note See the Windows Sockets 2 documentation for additional information 


function recv(s: TSocket; var Buf; len, flags: Longint): Longint;
Description: Receive data from a connected socket or a bound connectionless socket
Note See the Windows Sockets 2 documentation for additional information 


function recv(s: TSocket; Buf: PChar; len, flags: Longint): Longint;
Description: Receive data from a connected socket or a bound connectionless socket
Note See the Windows Sockets 2 documentation for additional information 


function recv(s: TSocket; Buf: Pointer; len, flags: Longint): Longint;
Description: Receive data from a connected socket or a bound connectionless socket
Note See the Windows Sockets 2 documentation for additional information 


function recvfrom(s: TSocket; Buf: PChar; len, flags: Longint; from: PSockAddr; fromlen: PLongint): Longint;
Description: Receive a datagram and store the source address
Note See the Windows Sockets 2 documentation for additional information 


function recvfrom(s: TSocket; Buf: Pointer; len, flags: Longint; from: PSockAddr; fromlen: PLongint): Longint;
Description: Receive a datagram and store the source address
Note See the Windows Sockets 2 documentation for additional information 


function recvfrom(s: TSocket; var Buf; len, flags: Longint; var from: TSockAddr; var fromlen: Longint): Longint;
Description: Receive a datagram and store the source address
Note See the Windows Sockets 2 documentation for additional information 


function select(nfds: Longint; readfds, writefds, exceptfds: PFDSet; timeout: PTimeVal): Longint;
Description: Determine the status of one or more sockets, waiting if necessary, to perform synchronous I/O
Note All sockets contained by the FDSet must be of the same type.

See the Windows Sockets 2 documentation for additional information 


function send(s: TSocket; var Buf; len, flags: Longint): Longint;
Description: Send data on a connected socket
Note See the Windows Sockets 2 documentation for additional information 


function send(s: TSocket; Buf: PChar; len, flags: Longint): Longint;
Description: Send data on a connected socket
Note See the Windows Sockets 2 documentation for additional information 


function send(s: TSocket; Buf: Pointer; len, flags: Longint): Longint;
Description: Send data on a connected socket
Note See the Windows Sockets 2 documentation for additional information 


function sendto(s: TSocket; var Buf; len, flags: Longint; var addrto: TSockAddr; tolen: Longint): Longint;
Description: Send data to a specific destination
Note See the Windows Sockets 2 documentation for additional information 


function sendto(s: TSocket; Buf: PChar; len, flags: Longint; addrto: PSockAddr; tolen: Longint): Longint;
Description: Send data to a specific destination
Note See the Windows Sockets 2 documentation for additional information 


function sendto(s: TSocket; Buf: Pointer; len, flags: Longint; addrto: PSockAddr; tolen: Longint): Longint;
Description: Send data to a specific destination
Note See the Windows Sockets 2 documentation for additional information 


function setsockopt(s: TSocket; level, optname: Longint; const optval; optlen: Longint): Longint;
Description: Set a socket option
Note See the Windows Sockets 2 documentation for additional information 


function setsockopt(s: TSocket; level, optname: Longint; optval: PChar; optlen: Longint): Longint;
Description: Set a socket option
Note See the Windows Sockets 2 documentation for additional information 


function setsockopt(s: TSocket; level, optname: Longint; optval: Pointer; optlen: Longint): Longint;
Description: Set a socket option
Note See the Windows Sockets 2 documentation for additional information 


function shutdown(s: TSocket; how: Longint): Longint;
Description: Disable sends or receives on a socket
Note See the Windows Sockets 2 documentation for additional information 


function socket(af, struct, protocol: Longint): TSocket;
Description: Create a socket that is bound to a specific transport service provider
Note See the Windows Sockets 2 documentation for additional information 


function gethostbyaddr(addr: Pointer; len, family: Longint): PHostEnt;
Description: Retrieve the host information corresponding to a network address
Note Address will be in network byte order where applicable.

See the Windows Sockets 2 documentation for additional information 


function gethostbyname(name: PChar): PHostEnt;
Description: Retrieve network address corresponding to a host name
Note See the Windows Sockets 2 documentation for additional information 


function gethostname(name: PChar; len: Longint): Longint;
Description: Retrieve the standard host name for the local computer
Note See the Windows Sockets 2 documentation for additional information 


function getservbyport(port: Longint; proto: PChar): PServEnt;
Description: Retrieve service information corresponding to a port and protocol
Note Port will be in network byte order.

See the Windows Sockets 2 documentation for additional information 


function getservbyname(name, proto: PChar): PServEnt;
Description: Retrieve service information corresponding to a service name and protocol
Note See the Windows Sockets 2 documentation for additional information 


function getprotobynumber(proto: Longint): PProtoEnt;
Description: Retrieve protocol information corresponding to a protocol number
Note See the Windows Sockets 2 documentation for additional information 


function getprotobyname(name: PChar): PProtoEnt;
Description: Retrieve the protocol information corresponding to a protocol name
Note See the Windows Sockets 2 documentation for additional information 


function getaddrinfo(pNodeName, pServiceName: PChar; pHints: PAddrInfo; var ppResult: PAddrInfo): LongInt;
Description: RFC 3493 protocol-independent translation from a host name to an address
Note See the Windows Sockets 2 documentation for additional information 


procedure freeaddrinfo(ai: PAddrInfo);
Description: Free address information that GetAddrInfo dynamically allocates in TAddrInfo structures
Note See the Windows Sockets 2 documentation for additional information 


function getnameinfo(sa: PSockAddr; salen: Integer; host: PChar; hostlen: DWORD; serv: PChar; servlen: DWORD; flags: Integer): Integer;
Description: RFC 3493 protocol-independent name resolution from an address to a host name and a port number to a service name
Note See the Windows Sockets 2 documentation for additional information 


function Gai_StrError(ecode: Longint): PChar;
Description: Return an error message for an error code returned by GetAddrInfo or GetNameInfo
Note See the Windows Sockets 2 documentation for additional information 


function WSAStartup(wVersionRequired: word; var WSData: TWSAData): Longint;
Description: Initiate use of Winsock 2 by an application
Note See the Windows Sockets 2 documentation for additional information 


function WSACleanup: Longint;
Description: Terminate use of Winsock 2 by an application
Note See the Windows Sockets 2 documentation for additional information 


procedure WSASetLastError(iError: Longint); inline;
Description: Set the error code that can be retrieved through the WSAGetLastError function
Note See the Windows Sockets 2 documentation for additional information 


function WSAGetLastError: Longint; inline;
Description: Return the error status for the last Windows Sockets operation that failed
Note See the Windows Sockets 2 documentation for additional information 


function __WSAFDIsSet(s: TSocket; var FDSet: TFDSet): BOOL;
Description: Return a value indicating whether a socket is included in a set of socket descriptors
Note See the Windows Sockets 2 documentation for additional information 


function inet_pton(Family: Longint; const pszAddrString: PChar; pAddrBuf: Pointer): Longint;
Description: To be documented
Note Address will be returned in network byte order where applicable.

See the Windows Sockets 2 documentation for additional information 


function InetPtonA(Family: Longint; const pszAddrString: PChar; pAddrBuf: Pointer): Longint;
Description: Convert an IPv4 or IPv6 Internet network address in its standard text presentation form into its numeric binary form
Note Address will be returned in network byte order where applicable.

See the Windows Sockets 2 documentation for additional information 


function InetPtonW(Family: Longint; const pszAddrString: PWideChar; pAddrBuf: Pointer): Longint;
Description: Convert an IPv4 or IPv6 Internet network address in its standard text presentation form into its numeric binary form
Note Address will be returned in network byte order where applicable.

See the Windows Sockets 2 documentation for additional information 


function inet_ntop(Family: Longint; pAddr: Pointer; pStringBuf: PChar; StringBufSize: Longint): PChar;
Description: Convert an IPv4 or IPv6 Internet network address into a string in Internet standard format
Note Address will be in network byte order where applicable.

See the Windows Sockets 2 documentation for additional information 


function InetNtopA(Family: Longint; pAddr: Pointer; pStringBuf: PChar; StringBufSize: Longint): PChar;
Description: Convert an IPv4 or IPv6 Internet network address into a string in Internet standard format
Note Address will be in network byte order where applicable.

See the Windows Sockets 2 documentation for additional information 


function InetNtopW(Family: Longint; pAddr: Pointer; pStringBuf: PWideChar; StringBufSize: Longint): PWideChar;
Description: Convert an IPv4 or IPv6 Internet network address into a string in Internet standard format
Note Address will be in network byte order where applicable.

See the Windows Sockets 2 documentation for additional information 


function WSAHtonl( s : TSocket; hostlong : u_long; lpnetlong : pu_long ): Longint;
Description: Convert a u_long from host byte order to network byte order
Note See the Windows Sockets 2 documentation for additional information 


function WSAHtons( s : TSocket; hostshort : u_short; lpnetshort : pu_short ): Longint;
Description: Convert a u_short from host byte order to network byte order
Note See the Windows Sockets 2 documentation for additional information 


function WSANtohl( s : TSocket; netlong : u_long; lphostlong : pu_long ): Longint;
Description: Convert a u_long from network byte order to host byte order
Note See the Windows Sockets 2 documentation for additional information 


function WSANtohs( s : TSocket; netshort : u_short; lphostshort : pu_short ): Longint;
Description: Convert a u_short from network byte order to host byte order
Note See the Windows Sockets 2 documentation for additional information 


function WSAMakeSyncReply(Buflen, Error: Word): Longint;
Description: To be documented
Note None documented 


function WSAMakeSelectReply(Event, Error: Word): Longint;
Description: To be documented
Note None documented 


function WSAGetAsyncBuflen(Param: Longint): Word;
Description: To be documented
Note None documented 


function WSAGetAsyncError(Param: Longint): Word;
Description: To be documented
Note None documented 


function WSAGetSelectEvent(Param: Longint): Word;
Description: To be documented
Note None documented 


function WSAGetSelectError(Param: Longint): Word;
Description: To be documented
Note None documented 


procedure FD_CLR(Socket: TSocket; var FDSet: TFDSet);
Description: To be documented
Note None documented 


function FD_ISSET(Socket: TSocket; var FDSet: TFDSet): Boolean;
Description: To be documented
Note None documented 


procedure FD_SET(Socket: TSocket; var FDSet: TFDSet);
Description: To be documented
Note None documented 


procedure FD_ZERO(var FDSet: TFDSet);
Description: To be documented
Note None documented


Winsock2 undocumented functions 

function WsControl(Proto:DWORD; Action:DWORD; pRequestInfo:Pointer; var pcbRequestInfoLen:DWORD; pResponseInfo:Pointer; var pcbResponseInfoLen:DWORD):Integer;
Description: To be documented
Note None documented 


function getnetbyaddr(addr: Pointer; len, Struct: Integer): PNetEnt;
Description: To be documented
Note Address will be in network order where applicable 


function getnetbyname(name: PChar): PNetEnt;
Description: To be documented
Note None documented


Winsock2 enhanced functions 

function WsControlEx(Proto:DWORD; Action:DWORD; pRequestInfo:Pointer; var pcbRequestInfoLen:DWORD; pResponseInfo:Pointer; var pcbResponseInfoLen:DWORD):Integer;
Description: To be documented
Note None documented


RTL text IO functions 

function SysTextIOReadChar(var ACh:Char; AUserData:Pointer):Boolean;
Description: Handler for platform TextIOReadChar function
Note Not intended to be called directly by applications 


function SysTextIOWriteChar(ACh:Char; AUserData:Pointer):Boolean;
Description: Handler for platform TextIOWriteChar function
Note Not intended to be called directly by applications 


function SysTextIOWriteBuffer(ABuffer:PChar; ACount:LongInt; AUserData:Pointer):LongInt;
Description: Handler for platform TextIOWriteBuffer function
Note Not intended to be called directly by applications


Winsock2 helper functions 

function Winsock2RedirectInput(s:TSocket):Boolean;
Description: Redirect standard input to the socket specified by s
s The socket to redirect input to (or INVALID_SOCKET to stop redirection)
Return True if completed successfully or False if an error occurred
Note Redirects the input of the text file Input which also redirects the input of Read, ReadLn and the standard C library. 


function Winsock2RedirectOutput(s:TSocket):Boolean;
Description: Redirect standard output to the socket specified by s
s The socket to redirect output to (or INVALID_SOCKET to stop redirection)
Return True if completed successfully or False if an error occurred
Note Redirects the output of the text files Output, ErrOutput, StdOut and StdErr which also redirects the output of Write, WriteLn and the standard C library. 


function Winsock2ErrorToString(AError:LongInt):String;
Description: To be documented
Note None documented


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