//
// WSEDesc.c -- WinSockエラー記述
//

#include <winsock.h>

typedef struct tagWSAEDESCRIPTION
{
        int iErrorCode;
        char *szDescription;
}WSAEDESCRIPTION;

WSAEDESCRIPTION ErrorDescriptions[] = {
	WSAEINTR,
	"WSAEINTR: Interrupted function call",
	WSAEBADF,
	"WSAEBADF: Bad file number",
	WSAEACCES,
	"WSAEACCES: Permission denied",
	WSAEFAULT,
	"WSAEFAULT: Address fault",
	WSAEINVAL,
	"WSAEINVAL: Invalid argument",
	WSAEMFILE,
	"WSAEMFILE: Too many open files",
	WSAEWOULDBLOCK,
	"WSAEWOULDBLOCK: Resource temporarily unavailable (Would block)",
	WSAEINPROGRESS,
	"WSAEINPROGRESS: Operation now in progress",
	WSAEALREADY,
	"WSAEALREADY: Operation already in progress",
	WSAENOTSOCK,
	"WSAENOTSOCK: Socket operation on non-socket",
	WSAEDESTADDRREQ,
	"WSAEDESTADDRREQ: Destination address required",
	WSAEMSGSIZE,
	"WSAEMSGSIZE: Message too long",
	WSAEPROTOTYPE,
	"WSAEPROTOTYPE: Protocol wrong type for socket",
	WSAENOPROTOOPT,
	"WSAENOPROTOOPT: Bad protocol option",
	WSAEPROTONOSUPPORT,
	"WSAEPROTONOSUPPORT: Protocol not supported",
	WSAESOCKTNOSUPPORT,
	"WSAESOCKTNOSUPPORT: Socket type not supported",
	WSAEOPNOTSUPP,
	"WSAEOPNOTSUPP: Operation not supported",
	WSAEPFNOSUPPORT,
	"WSAEPFNOSUPPORT: Protocol family not supported",
	WSAEAFNOSUPPORT,
	"WSAEAFNOSUPPORT: Address family not supported by protocol family",
	WSAEADDRINUSE,
	"WSAEADDRINUSE: Address already in use",
	WSAEADDRNOTAVAIL,
	"WSAEADDRNOTAVAIL: Cannot assign requested address",
	WSAENETDOWN,
	"WSAENETDOWN: Network is down",
	WSAENETUNREACH,
	"WSAENETUNREACH: Network is unreachable",
	WSAENETRESET,
	"WSAENETRESET: Network dropped connection on reset",
	WSAECONNABORTED,
	"WSAECONNABORTED: Software caused connection abort",
	WSAECONNRESET,
	"WSAECONNRESET: Connection reset by peer",
	WSAENOBUFS,
	"WSAENOBUFS: No buffer space available",
	WSAEISCONN,
	"WSAEISCONN: Socket is already connected",
	WSAENOTCONN,
	"WSAENOTCONN: Socket is not connected",
	WSAESHUTDOWN,
	"WSAESHUTDOWN: Cannot send after socket shutdown",
	WSAETOOMANYREFS,
	"WSAETOOMANYREFS: Too many references",
	WSAETIMEDOUT,
	"WSAETIMEDOUT: Connection timed out",
	WSAECONNREFUSED,
	"WSAECONNREFUSED: Connection refused",
	WSAELOOP,
	"WSAELOOP: Loop",
	WSAENAMETOOLONG,
	"WSAENAMETOOLONG: Name too long",
	WSAEHOSTDOWN,
	"WSAEHOSTDOWN: Host is down",
	WSAEHOSTUNREACH,
	"WSAEHOSTUNREACH: No route to host",
	WSAENOTEMPTY,
	"WSAENOTEMPTY: Directory not empty",
	WSAEPROCLIM,
	"WSAEPROCLIM: Too many processes",
	WSAEUSERS,
	"WSAEUSERS: Too many users",
	WSAEDQUOT,
	"WSAEDQUOT: Disk quota",
	WSAESTALE,
	"WSAESTALE: Stale",
	WSAEREMOTE,
	"WSAEREMOTE: Remote",
	WSASYSNOTREADY,
	"WSASYSNOTREADY: Network subsystem is unavailable",
	WSAVERNOTSUPPORTED,
	"WSAVERNOTSUPPORTED: WINSOCK.DLL version out of range",
	WSANOTINITIALISED,
	"WSANOTINITIALISED: Successful WSAStartup() not yet performed",
	WSAEDISCON,
	"WSAEDISCON: Graceful shutdown in progress",
	WSAHOST_NOT_FOUND,
	"WSAHOST_NOT_FOUND: Host not found",
	WSATRY_AGAIN,
	"WSATRY_AGAIN: Non-authoritative host not found",
	WSANO_RECOVERY,
	"WSANO_RECOVERY: Non-recoverable error",
	WSANO_DATA,
	"WSANO_DATA: Valid name, no data record of requested type",
#ifdef _WINSOCK2API_
	WSAENOMORE,
	"WSAENOMORE: ",
	WSAECANCELLED,
	"WSAECANCELLED: Cancelled",
	WSAEINVALIDPROCTABLE,
	"WSAEINVALIDPROCTABLE: Invalid procedure table from service provider",
	WSAEINVALIDPROVIDER,
	"WSAEINVALIDPROVIDER: Invalid service provider version number",
	WSAEPROVIDERFAILEDINIT,
	"WSAEPROVIDERFAILEDINIT: Unable to initialize a service provider",
	WSASYSCALLFAILURE,
	"WSASYSCALLFAILURE: System call failure",
	WSASERVICE_NOT_FOUND,
	"WSASERVICE_NOT_FOUND: Service not found",
	WSATYPE_NOT_FOUND,
	"WSATYPE_NOT_FOUND: Type not found",
	WSA_E_NO_MORE,
	"WSA_E_NO_MORE: ",
	WSA_E_CANCELLED,
	"WSA_E_CANCELLED: ",
	WSAEREFUSED,
	"WSAEREFUSED: Refused",
#endif

   };

//
// WSErrorDescription()
//
LPCSTR WSErrorDescription(int iErrorCode)
{
        #define NUMELEMENTS sizeof(ErrorDescriptions) / sizeof(ErrorDescriptions[0])
        int iNdx;

        for (iNdx = 0; iNdx < NUMELEMENTS; iNdx++)
        {
                if (ErrorDescriptions[iNdx].iErrorCode == iErrorCode)
                        return(ErrorDescriptions[iNdx].szDescription);
        }
        return("Unknown error");
}