#include <winsock.h>
#include <stdio.h>
#include <string.h>

#include "wslib.h"


char *ws_strerror(void)
{
	static char *err_str = NULL;
	int err;
	char *tmp;
	
	err = WSAGetLastError();
	
	switch (err) {
		case WSAEINTR:
			tmp = "Interrupted function call";
			break;
		case WSAEACCES:
			tmp = "Permission denied";
			break;
		case WSAEBADF:
			tmp = "Bad file handle";
			break;
		case WSAEFAULT:
			tmp = "Bad address";
			break;
		case WSAEINVAL:
			tmp = "Invalid argument";
			break;
		case WSAEMFILE:
			tmp = "Too many open files";
			break;
		case WSAEWOULDBLOCK:
			tmp = "Resource temporarily unavailable";
			break;
		case WSAEINPROGRESS:
			tmp = "Operation now in progress";
			break;
		case WSAEALREADY:
			tmp = "Operation already in progress";
			break;
		case WSAENOTSOCK:
			tmp = "Socket operation on non-socket";
			break;
		case WSAEDESTADDRREQ:
			tmp = "Destination address required";
			break;
		case WSAEMSGSIZE:
			tmp = "Message too long";
			break;
		case WSAEPROTOTYPE:
			tmp = "Protocol wrong type for socket";
			break;
		case WSAENOPROTOOPT:
			tmp = "Bad protocol option";
			break;
		case WSAEPROTONOSUPPORT:
			tmp = "Protocol not supported";
			break;
		case WSAESOCKTNOSUPPORT:
			tmp = "Socket type not supported";
			break;
		case WSAEOPNOTSUPP:
			tmp = "Operation not supported";
			break;
		case WSAEPFNOSUPPORT:
			tmp = "Protocol family not supported";
			break;
		case WSAEAFNOSUPPORT:
			tmp = "Address family not supported by protocol family";
			break;
		case WSAEADDRINUSE:
			tmp = "Address already in use";
			break;
		case WSAEADDRNOTAVAIL:
			tmp = "Cannot assign requested address";
			break;
		case WSAENETDOWN:
			tmp = "Network is down";
			break;
		case WSAENETUNREACH:
			tmp = "Network is unreachable";
			break;
		case WSAENETRESET:
			tmp = "Network dropped connection on reset";
			break;
		case WSAECONNABORTED:
			tmp = "Software caused connection abort";
			break;
		case WSAECONNRESET:
			tmp = "Connection reset by peer";
			break;
		case WSAENOBUFS:
			tmp = "No buffer space available";
			break;
		case WSAEISCONN:
			tmp = "Socket is already connected";
			break;
		case WSAENOTCONN:
			tmp = "Socket not connected";
			break;
		case WSAESHUTDOWN:
			tmp = "Cannot send after socket shutdown";
			break;
		case WSAETIMEDOUT:
			tmp = "Connection timed out";
			break;
		case WSAECONNREFUSED:
			tmp = "Connection refused";
			break;
		case WSAEHOSTDOWN:
			tmp = "Host is down";
			break;
		case WSAEHOSTUNREACH:
			tmp = "No route to host";
			break;
		case WSASYSNOTREADY:
			tmp = "Network subsystem is unavailable";
			break;
		case WSAVERNOTSUPPORTED:
			tmp = "WINSOCK.DLL version out of range";
			break;
		case WSANOTINITIALISED:
			tmp = "Successful WSAStartup not yet performed";
			break;
		case WSAHOST_NOT_FOUND:
			tmp = "Host not found";
			break;
		case WSATRY_AGAIN:
			tmp = "Non-authoritative host not found";
			break;
		case WSANO_RECOVERY:
			tmp = "This is a non-recoverable error";
			break;
		case WSANO_DATA:
			tmp = "Valid name, no data record of requested type";
			break;

/*
		case WSAEPROCLIM:
			tmp = "Too many processes";
			break;
		case WSA_INVALID_HANDLE:
			tmp = "Invalid handle";
			break;
		case WSA_INVALID_PARAMETER:
			tmp = "One or more parameters are invalid";
			break;
		case WSAINVALIDPROCTABLE:
			tmp = "Invalid procedure table from service provider";
			break;
		case WSAINVALIDPROVIDER:
			tmp = "Invalid service provider versoin number";
			break;
		case WSA_IO_PENDING:
			tmp = "Overlapped operations will complete later";
			break;
		case WSA_IO_INCOMPLETE:
			tmp = "Overlapped I/O event object not i signaled state";
			break;
		case WSA_NOT_ENOUGH_MEMORY:
			tmp = "Insufficient memory available";
			break;
		case WSAPROVIDERFAILEDINIT:
			tmp = "Unable to initialize a service provider";
			break;
		case WSASYSCALLFAILURE:
			tmp = "System call failure";
			break;
		case WSAEDISCON:
			tmp = "Graceful shutdown in progress";
			break;
		case WSA_OPERATION_ABORTED:
			tmp = "Overlapped operation aborted";
			break;
*/
		default:
			tmp = "Unknown error";
	}
	
	if (err_str)
		free(err_str);
	err_str = (char*)malloc(strlen(tmp) + sizeof("[00000] ") + 1);
	sprintf(err_str, "[%d] %s", err, tmp);
	return err_str;
}
.