Source to src/od-win32/bsdsock.c

/*
 * UAE - The Un*x Amiga Emulator
 *
 * bsdsocket.library emulation - Win32 OS-dependent part
 *
 * Copyright 1997,98 Mathias Ortmann
 * Copyright 1999,2000 Brian King
 *
 * GNU Public License
 *
 */
#include "sysconfig.h"
#include "sysdeps.h"

#include <winsock.h>
#include <stddef.h>
#include <process.h>

#include "options.h"
#include "memory.h"
#include "custom.h"
#include "newcpu.h"
#include "autoconf.h"
#include "bsdsocket.h"

#include "osdep/exectasks.h"
#include "threaddep/thread.h"
#include "native2amiga.h"
#include "osdep/resource.h"
#include "osdep/win32gui.h"

static HWND hSockWnd;
extern HWND hAmigaWnd;
int hWndSelector = 0; /* Set this to zero to get hSockWnd */
CRITICAL_SECTION csSigQueueLock;

DWORD threadid;
#ifdef __GNUC__
#define THREAD(func,arg) CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)func,(LPVOID)arg,0,&threadid)
#else
#define THREAD(func,arg) _beginthreadex( NULL, 0, func, (void *)arg, 0, (unsigned *)&threadid )
#endif

#define SETERRNO seterrno(sb,WSAGetLastError()-WSABASEERR)
#define SETHERRNO setherrno(sb,WSAGetLastError()-WSABASEERR)
#define WAITSIGNAL waitsig(sb)

#define SETSIGNAL addtosigqueue(sb,0)
#define CANCELSIGNAL cancelsig(sb)

#define BEGINBLOCKING if (sb->ftable[sd-1] & SF_BLOCKING) sb->ftable[sd-1] |= SF_BLOCKINGINPROGRESS
#define ENDBLOCKING sb->ftable[sd-1] &= ~SF_BLOCKINGINPROGRESS

static WSADATA wsbData;

int PASCAL WSAEventSelect(SOCKET,HANDLE,long);

#define MAX_SELECT_THREADS 64
static HANDLE hThreads[MAX_SELECT_THREADS];
uae_u32 *threadargs[MAX_SELECT_THREADS];
static HANDLE hEvents[MAX_SELECT_THREADS];

static HANDLE hSockThread;
static HANDLE hSockReq, hSockReqHandled;
static unsigned int __stdcall sock_thread(void *);

CRITICAL_SECTION SockThreadCS;
#define PREPARE_THREAD EnterCriticalSection( &SockThreadCS )
#define TRIGGER_THREAD { SetEvent( hSockReq ); WaitForSingleObject( hSockReqHandled, INFINITE ); LeaveCriticalSection( &SockThreadCS ); }

#define SOCKVER_MAJOR 2
#define SOCKVER_MINOR 2
int mySockStartup( void )
{
    int result = 0;
    SOCKET dummy;
    DWORD lasterror;

    if (WSAStartup(MAKEWORD( SOCKVER_MAJOR, SOCKVER_MINOR ), &wsbData))
    {
	    lasterror = WSAGetLastError();
	    
	    if( lasterror == WSAVERNOTSUPPORTED )
	    {
		char szMessage[ MAX_PATH ];
		WIN32GUI_LoadUIString( IDS_WSOCK2NEEDED, szMessage, MAX_PATH );
		gui_message( szMessage );
	    }
	    else
		write_log ( "BSDSOCK: ERROR - Unable to initialize Windows socket layer! Error code: %d\n", lasterror );
	    return 0;
    }

    if (LOBYTE (wsbData.wVersion) != SOCKVER_MAJOR || HIBYTE (wsbData.wVersion) != SOCKVER_MINOR )
    {
	char szMessage[ MAX_PATH ];
	WIN32GUI_LoadUIString( IDS_WSOCK2NEEDED, szMessage, MAX_PATH );
	gui_message( szMessage );

	return 0;
    }
    else
    {
	write_log ( "BSDSOCK: using %s\n", wsbData.szDescription );
	// make sure WSP/NSPStartup gets called from within the regular stack
	// (Windows 95/98 need this)
	if( ( dummy = socket( AF_INET,SOCK_STREAM,IPPROTO_TCP ) ) != INVALID_SOCKET ) 
	{
	    closesocket( dummy );
	    result = 1;
	}
	else
	{
	    write_log ( "BSDSOCK: ERROR - WSPStartup/NSPStartup failed! Error code: %d\n",WSAGetLastError() );
	    result = 0;
	}
    }

    return result;
}

static int socket_layer_initialized = 0;

int init_socket_layer(void)
{
    int result = 0;

#ifndef CAN_DO_STACK_MAGIC
    currprefs.socket_emu = 0;
#endif
    if( currprefs.socket_emu )
    {
	if( ( result = mySockStartup() ) )
	{
	    InitializeCriticalSection(&csSigQueueLock);

	    if( hSockThread == NULL )
	    {
		InitializeCriticalSection( &SockThreadCS );
		hSockReq = CreateEvent( NULL, FALSE, FALSE, NULL );
		hSockReqHandled = CreateEvent( NULL, FALSE, FALSE, NULL );
		hSockThread = (void *)THREAD(sock_thread,NULL);
	    }
	}
    }

    socket_layer_initialized = result;

    return result;
}

void deinit_socket_layer(void)
{
    int i;
    if( currprefs.socket_emu )
    {
	WSACleanup();
	if( socket_layer_initialized )
	{
	    DeleteCriticalSection( &csSigQueueLock );
	    if( hSockThread )
	    {
		DeleteCriticalSection( &SockThreadCS );
		CloseHandle( hSockReq );
		hSockReq = NULL;
		CloseHandle( hSockReqHandled );
		WaitForSingleObject( hSockThread, INFINITE );
		CloseHandle( hSockThread );
	    }
	    for (i = 0; i < MAX_SELECT_THREADS; i++)
	    {
		if (hThreads[i])
		{
		    CloseHandle( hThreads[i] );
		}
	    }
	}
    }
}

#ifdef BSDSOCKET_SUPPORTED

void locksigqueue(void)
{
    EnterCriticalSection(&csSigQueueLock);
}

void unlocksigqueue(void)
{
    LeaveCriticalSection(&csSigQueueLock);
}

// Asynchronous completion notification

// We use window messages posted to hAmigaWnd in the range from 0xb000 to 0xb000+MAXPENDINGASYNC*2
// Socket events cause even-numbered messages, task events odd-numbered messages
// Message IDs are allocated on a round-robin basis and deallocated by the main thread.

// WinSock tends to choke on WSAAsyncCancelMessage(s,w,m,0,0) called too often with an event pending

// @@@ Enabling all socket event messages for every socket by default and basing things on that would
// be cleaner (and allow us to write a select() emulation that doesn't need to be kludge-aborted).
// However, the latency of the message queue is too high for that at the moment (setting up a dummy
// window from a separate thread would fix that).

// Blocking sockets with asynchronous event notification are currently not safe to use.

struct socketbase *asyncsb[MAXPENDINGASYNC];
SOCKET asyncsock[MAXPENDINGASYNC];
uae_u32 asyncsd[MAXPENDINGASYNC];
int asyncindex;

int host_sbinit(SB)
{
	sb->sockAbort = socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
	
	if (sb->sockAbort == INVALID_SOCKET) return 0;
	if ((sb->hEvent = CreateEvent(NULL,FALSE,FALSE,NULL)) == NULL) return 0;

	sb->mtable = calloc(sb->dtablesize,sizeof(*sb->mtable));
	
	return 1;
}

void host_closesocketquick(int s)
{
	BOOL true = 1;

	if( s )
	{
	    setsockopt((SOCKET)s,SOL_SOCKET,SO_DONTLINGER,(char *)&true,sizeof(true));
	    //shutdown(s,1);
	    closesocket((SOCKET)s);
	}
}

void host_sbcleanup(SB)
{
	int i;

	for (i = 0; i < MAXPENDINGASYNC; i++) if (asyncsb[i] == sb) asyncsb[i] = NULL;

	if (sb->hEvent != NULL) CloseHandle(sb->hEvent);
	if (sb->hAsyncTask) WSACancelAsyncRequest(sb->hAsyncTask);
	
	for (i = sb->dtablesize; i--; )
	{
		if (sb->dtable[i] != (int)INVALID_SOCKET) host_closesocketquick(sb->dtable[i]);
		
		if (sb->mtable[i]) asyncsb[(sb->mtable[i]-0xb000)/2] = NULL;
	}

	//shutdown(sb->sockAbort,1);
	closesocket(sb->sockAbort);

	free(sb->mtable);
}

void host_sbreset(void)
{
	memset(asyncsb,0,sizeof asyncsb);
	memset(asyncsock,0,sizeof asyncsock);
	memset(asyncsd,0,sizeof asyncsd);
	memset(threadargs,0,sizeof threadargs);
}

void sockmsg(unsigned int msg, unsigned long wParam, unsigned long lParam)
{
	SB;
	unsigned int index;
	int sdi;

	index = (msg-0xb000)/2;
	sb = asyncsb[index];

	if (!(msg & 1))
	{
		// is this one really for us?
		if ((SOCKET)wParam != asyncsock[index])
		{
			// cancel socket event
			WSAAsyncSelect((SOCKET)wParam,hWndSelector ? hAmigaWnd : hSockWnd,0,0);
			return;
		}

		sdi = asyncsd[index]-1;

		// asynchronous socket event?
		if (sb && !(sb->ftable[sdi] & SF_BLOCKINGINPROGRESS) && sb->mtable[sdi])
		{
			long wsbevents = WSAGETSELECTEVENT(lParam);
			int fmask = 0;

			// regular socket event?
			if (wsbevents & FD_READ) fmask = REP_READ;
			else if (wsbevents & FD_WRITE) fmask = REP_WRITE;
			else if (wsbevents & FD_OOB) fmask = REP_OOB;
			else if (wsbevents & FD_ACCEPT) fmask = REP_ACCEPT;
			else if (wsbevents & FD_CONNECT) fmask = REP_CONNECT;
			else if (wsbevents & FD_CLOSE) fmask = REP_CLOSE;

			// error?
			if (WSAGETSELECTERROR(lParam)) fmask |= REP_ERROR;

			// notify
			if (sb->ftable[sdi] & fmask) sb->ftable[sdi] |= fmask<<8;

			addtosigqueue(sb,1);
			return;
		}
	}

	locksigqueue();

	if (sb != NULL)
	{
		if (msg & 1)
		{
			// is this one really for us?
			if (sb->hAsyncTask != (void *)~0L && (void *)wParam != sb->hAsyncTask)
			{
				unlocksigqueue();
				return;
			}
		}

		asyncsb[index] = NULL;

		if (WSAGETASYNCERROR(lParam))
		{
			seterrno(sb,WSAGETASYNCERROR(lParam)-WSABASEERR);
			if (sb->sb_errno >= 1001 && sb->sb_errno <= 1005) setherrno(sb,sb->sb_errno-1000);
			else if (sb->sb_errno == 55)	// ENOBUFS
				write_log ("BSDSOCK: ERROR - Buffer overflow - %d bytes requested\n",WSAGETASYNCBUFLEN(lParam));
		}
		else seterrno(sb,0);

		if (msg & 1) sb->hAsyncTask = 0;

		SETSIGNAL;
	}
	
	unlocksigqueue();
}

static unsigned int allocasyncmsg(SB,uae_u32 sd,SOCKET s)
{
	int i;
	
	locksigqueue();
	
	for (i = asyncindex+1; i != asyncindex; i++)
	{
		if (i == MAXPENDINGASYNC) i = 0;
		
		if (!asyncsb[i])
		{
			asyncsb[i] = sb;
			if (++asyncindex == MAXPENDINGASYNC) asyncindex = 0;
			unlocksigqueue();
			
			if (s == INVALID_SOCKET)
			{
				sb->hAsyncTask = (void *)~0L;	// set wildcard value to prevent race condition
				return i*2+0xb001;
			}
			else
			{
				asyncsd[i] = sd;
				asyncsock[i] = s;
				return i*2+0xb000;
			}
		}
	}
	
	unlocksigqueue();

	seterrno(sb,12); // ENOMEM
	write_log ("BSDSOCK: ERROR - Async operation completion table overflow\n");
	
	return 0;
}

static void cancelasyncmsg(unsigned int wMsg)
{
	SB;
	
	wMsg = (wMsg-0xb000)/2;

	sb = asyncsb[wMsg];

	if (sb != NULL)
	{
		asyncsb[wMsg] = NULL;
		CANCELSIGNAL;
	}
}

void sockabort(SB)
{	
    locksigqueue();

    if (sb->hAsyncTask)
    {
	if (WSACancelAsyncRequest(sb->hAsyncTask))
	    write_log ("BSDSOCK: ERROR - WSACancelAsyncRequest() failed with error code %d\n",WSAGetLastError());
	sb->hAsyncTask = 0;
    }

    unlocksigqueue();
}

// address cleaning
static void prephostaddr(SOCKADDR_IN *addr)
{
    addr->sin_family = AF_INET;
}

static void prepamigaaddr(struct sockaddr *realpt, int len)
{
    // little endian address family value to the byte sin_family member
    ((char *)realpt)[1] = *((char *)realpt);
    
    // set size of address
    *((char *)realpt) = len;
}

int host_socket(SB, int af, int type, int protocol)
{
    int sd;
    SOCKET s;
    unsigned long nonblocking = 1;

    TRACE(("socket(%s,%s,%d) -> ",af == AF_INET ? "AF_INET" : "AF_other",type == SOCK_STREAM ? "SOCK_STREAM" : type == SOCK_DGRAM ? "SOCK_DGRAM " : "SOCK_RAW",protocol));

    if ((s = socket(af,type,protocol)) == INVALID_SOCKET)
    {
	SETERRNO;
	TRACE(("failed (%d)\n",sb->sb_errno));
	return -1;
    }
    else
	sd = getsd(sb,(int)s);

    sb->ftable[sd-1] = SF_BLOCKING;
    ioctlsocket(s,FIONBIO,&nonblocking);
    TRACE(("%d\n",sd));

    return sd;
}

uae_u32 host_bind(SB, uae_u32 sd, uae_u32 name, uae_u32 namelen)
{
    char buf[MAXADDRLEN];
    uae_u32 success = 0;
    SOCKET s;

    TRACE(("bind(%d,0x%lx,%d) -> ",sd,name,namelen));
    s = getsock(sb, sd);

    if (s != INVALID_SOCKET)
    {
	if (namelen <= sizeof buf)
	{
	    memcpy(buf,get_real_address (name),namelen);
	    
	    // some Amiga programs set this field to bogus values
	    prephostaddr((SOCKADDR_IN *)buf);

	    if ((success = bind(s,(struct sockaddr *)buf,namelen)) != 0)
	    {
		SETERRNO;
		TRACE(("failed (%d)\n",sb->sb_errno));
	    }
	    else
		TRACE(("OK\n"));
	}
	else
	    write_log ("BSDSOCK: ERROR - Excessive namelen (%d) in bind()!\n",namelen);
    }

    return success;
}

uae_u32 host_listen(SB, uae_u32 sd, uae_u32 backlog)
{
    SOCKET s;
    uae_u32 success = -1;

    TRACE(("listen(%d,%d) -> ",sd,backlog));
    s = getsock(sb, sd);

    if (s != INVALID_SOCKET)
    {
	if ((success = listen(s,backlog)) != 0)
	{
	    SETERRNO;
	    TRACE(("failed (%d)\n",sb->sb_errno));
	}
	else 
	    TRACE(("OK\n"));
    }
		    
    return success;
}

void host_accept(SB, uae_u32 sd, uae_u32 name, uae_u32 namelen)
{
    struct sockaddr *rp_name;
    int hlen;
    SOCKET s, s2;
    int success = 0;
    unsigned int wMsg;
    
    rp_name = (struct sockaddr *)get_real_address (name);
    hlen = get_long (namelen);
    TRACE(("accept(%d,%d,%d) -> ",sd,name,hlen));

    s = (SOCKET)getsock(sb,(int)sd);
    
    if (s != INVALID_SOCKET)
    {
	BEGINBLOCKING;
	
	s2 = accept(s,rp_name,&hlen);

	if (s2 == INVALID_SOCKET)
	{
	    SETERRNO;

	    if (sb->ftable[sd-1] & SF_BLOCKING && sb->sb_errno == WSAEWOULDBLOCK-WSABASEERR)
	    {
		if ((wMsg = allocasyncmsg(sb,sd,s)) != 0)
		{
		    WSAAsyncSelect(s,hWndSelector ? hAmigaWnd : hSockWnd,wMsg,FD_ACCEPT);

		    WAITSIGNAL;

		    cancelasyncmsg(wMsg);
		    
		    if (sb->eintr)
		    {
			TRACE(("[interrupted]\n"));
			ENDBLOCKING;
			return;
		    }

		    s2 = accept(s,rp_name,&hlen);

		    if (s2 == INVALID_SOCKET)
		    {
			SETERRNO;

			if (sb->sb_errno == WSAEWOULDBLOCK-WSABASEERR) write_log ("BSDSOCK: ERRRO - accept() would block despite FD_ACCEPT message\n");
		    }
		}
	    }
	}
			
	if (s2 == INVALID_SOCKET)
	{
	    sb->resultval = -1;
	    TRACE(("failed (%d)\n",sb->sb_errno));
	}
	else
	{
	    sb->resultval = getsd(sb, s2);
	    sb->ftable[sb->resultval-1] = sb->ftable[sd-1];	// new socket inherits the old socket's properties

	    prepamigaaddr(rp_name,hlen);
	    put_long (namelen,hlen);
	    TRACE(("%d/%d\n",sb->resultval,hlen));
	}

	ENDBLOCKING;
    }
}

typedef enum
{
    connect_req,
    recvfrom_req,
    sendto_req,
    abort_req,
    last_req
} threadsock_e;

struct threadsock_packet
{
    threadsock_e packet_type;
    union
    {
	struct sendto_params
	{
	    char *buf;
	    char *realpt;
	    uae_u32 sd;
	    uae_u32 msg;
	    uae_u32 len;
	    uae_u32 flags;
	    uae_u32 to;
	    uae_u32 tolen;
	} sendto_s;
	struct recvfrom_params
	{
	    char *realpt;
	    uae_u32 addr;
	    uae_u32 len;
	    uae_u32 flags;
	    struct sockaddr *rp_addr;
	    int *hlen;
	} recvfrom_s;
	struct connect_params
	{
	    char *buf;
	    uae_u32 namelen;
	} connect_s;
	struct abort_params
	{
	    SOCKET *newsock;
	} abort_s;
    } params;
    SOCKET s;
    SB;
} sockreq;

BOOL HandleStuff( void )
{
    BOOL quit = FALSE;
    SB = NULL;
    BOOL handled = TRUE;

    if( hSockReq )
    {
	// 100ms sleepiness might need some tuning...
	if( WaitForSingleObject( hSockReq, 100 ) == WAIT_OBJECT_0 )
	{
	    switch( sockreq.packet_type )
	    {
		case connect_req:
		    sockreq.sb->resultval = connect(sockreq.s,(struct sockaddr *)(sockreq.params.connect_s.buf),sockreq.params.connect_s.namelen);
		break;
		case sendto_req:
		    if( sockreq.params.sendto_s.to )
		    {
			sockreq.sb->resultval = sendto(sockreq.s,sockreq.params.sendto_s.realpt,sockreq.params.sendto_s.len,sockreq.params.sendto_s.flags,(struct sockaddr *)(sockreq.params.sendto_s.buf),sockreq.params.sendto_s.tolen);
		    }
		    else
		    {
			sockreq.sb->resultval = send(sockreq.s,sockreq.params.sendto_s.realpt,sockreq.params.sendto_s.len,sockreq.params.sendto_s.flags);
		    }
		break;
		case recvfrom_req:
		    if( sockreq.params.recvfrom_s.addr )
		    {
			sockreq.sb->resultval = recvfrom( sockreq.s, sockreq.params.recvfrom_s.realpt, sockreq.params.recvfrom_s.len,
							  sockreq.params.recvfrom_s.flags, sockreq.params.recvfrom_s.rp_addr,
							  sockreq.params.recvfrom_s.hlen );
		    }
		    else
		    {
			sockreq.sb->resultval = recv( sockreq.s, sockreq.params.recvfrom_s.realpt, sockreq.params.recvfrom_s.len,
						      sockreq.params.recvfrom_s.flags );
		    }
		break;
		case abort_req:
		    *(sockreq.params.abort_s.newsock) = socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
		    //shutdown( sb->sockAbort, 1 );
		    closesocket(sb->sockAbort);
		    handled = FALSE; /* Don't bother the SETERRNO section after the switch() */
		break;
		case last_req:
		default:
		    write_log ( "BSDSOCK: Invalid sock-thread request!\n" );
		    handled = FALSE;
		break;
	    }
	    if( handled )
	    {
		if( sockreq.sb->resultval == SOCKET_ERROR )
		{
		    sb = sockreq.sb;
		    SETERRNO;
		}
	    }
	    SetEvent( hSockReqHandled );
	}
    }
    else
    {
	quit = TRUE;
    }
    return quit;
}

long FAR PASCAL SocketWindowProc( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam )
{
#ifdef BSDSOCKET_SUPPORTED
    if( message >= 0xB000 && message < 0xB000+MAXPENDINGASYNC*2 )
    {
#if DEBUG_SOCKETS
	write_log ( "sockmsg(0x%x, 0x%x, 0x%x)\n", message, wParam, lParam );
#endif
	sockmsg( message, wParam, lParam );
	return 0;
    }
#endif

    return DefWindowProc( hwnd, message, wParam, lParam );
}

static unsigned int __stdcall sock_thread(void *blah)
{
    unsigned int result = 0;
    MSG msg;
    WNDCLASS wc;    // Set up an invisible window and dummy wndproc

    wc.style = CS_BYTEALIGNCLIENT | CS_BYTEALIGNWINDOW;
    wc.lpfnWndProc = SocketWindowProc;
    wc.cbClsExtra = 0;
    wc.cbWndExtra = 0;
    wc.hInstance = 0;
    wc.hIcon = LoadIcon (GetModuleHandle (NULL), MAKEINTRESOURCE( IDI_APPICON ) );
    wc.hCursor = LoadCursor (NULL, IDC_ARROW);
    wc.hbrBackground = GetStockObject (BLACK_BRUSH);
    wc.lpszMenuName = 0;
    wc.lpszClassName = "SocketFun";
    if( RegisterClass (&wc) )
    {
	hSockWnd = CreateWindowEx ( 0,
				    "SocketFun", "WinUAE Socket Window",
				    WS_POPUP,
				    0, 0,
				    1, 1, 
				    NULL, NULL, 0, NULL);
	if( hSockWnd )
	{
	    // Make sure we're outrunning the wolves
	    SetThreadPriority( GetCurrentThread(), THREAD_PRIORITY_ABOVE_NORMAL );
	    
	    while( TRUE )
	    {
		if( PeekMessage( &msg, NULL, WM_USER, 0xB000+MAXPENDINGASYNC*2, PM_REMOVE ) > 0 )
		{
		    TranslateMessage( &msg );
		    DispatchMessage( &msg );
		}
		if( HandleStuff() ) // See if its time to quit...
		    break;
	    }
	}
    }
    write_log ( "BSDSOCK: We have exited our sock_thread()\n" );
#ifndef __GNUC__
    _endthreadex( result );
#endif
    return result;
}

void host_connect(SB, uae_u32 sd, uae_u32 name, uae_u32 namelen)
{
    SOCKET s;
    int success = 0;
    unsigned int wMsg;
    char buf[MAXADDRLEN];
    TRACE(("connect(%d,0x%lx,%d) -> ",sd,name,namelen));

    s = (SOCKET)getsock(sb,(int)sd);
    
    if (s != INVALID_SOCKET)
    {
	if (namelen <= MAXADDRLEN)
	{
	    if ((wMsg = allocasyncmsg(sb,sd,s)) != 0)
	    {
		WSAAsyncSelect(s,hWndSelector ? hAmigaWnd : hSockWnd,wMsg,FD_CONNECT);

		BEGINBLOCKING;
		PREPARE_THREAD;

		memcpy(buf,get_real_address (name),namelen);
		prephostaddr((SOCKADDR_IN *)buf);

		sockreq.packet_type = connect_req;
		sockreq.s = s;
		sockreq.sb = sb;
		sockreq.params.connect_s.buf = buf;
		sockreq.params.connect_s.namelen = namelen;

		TRIGGER_THREAD;
		if (sb->resultval)
		{
		    if (sb->sb_errno == WSAEWOULDBLOCK-WSABASEERR)
		    {
			if (sb->ftable[sd-1] & SF_BLOCKING)
			{
			    seterrno(sb,0);
	
			    WAITSIGNAL;

			    if (sb->eintr)
			    {
				// Destroy socket to cancel abort, replace it with fake socket to enable proper closing.
				// This is in accordance with BSD behaviour.
				//shutdown(s,1);
				closesocket(s);
				sb->dtable[sd-1] = socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
			    }
			}
			else
			    seterrno(sb,36);	// EINPROGRESS
		    }
		}
				    
		ENDBLOCKING;

		cancelasyncmsg(wMsg);
	    }
	}
	else
	    write_log ("BSDSOCK: WARNING - Excessive namelen (%d) in connect()!\n",namelen);
    }

    TRACE(("%d\n",sb->sb_errno));
}

void host_sendto(SB, uae_u32 sd, uae_u32 msg, uae_u32 len, uae_u32 flags, uae_u32 to, uae_u32 tolen)
{
    SOCKET s;
    char *realpt;
    unsigned int wMsg;
    char buf[MAXADDRLEN];

#ifdef TRACING_ENABLED
    if (to) TRACE(("sendto(%d,0x%lx,%d,0x%lx,0x%lx,%d) -> ",sd,msg,len,flags,to,tolen))
    else TRACE(("send(%d,0x%lx,%d,%d) -> ",sd,msg,len,flags));
#endif

    s = getsock(sb,sd);

    if (s != INVALID_SOCKET)
    {
	realpt = get_real_address (msg);
		
	if (to)
	{
	    if (tolen > sizeof buf) write_log ("BSDSOCK: WARNING - Target address in sendto() too large (%d)!\n",tolen);
	    else
	    {
		memcpy(buf,get_real_address (to),tolen);
		// some Amiga software sets this field to bogus values
		prephostaddr((SOCKADDR_IN *)buf);
	    }
	}
		
	BEGINBLOCKING;

	for (;;)
	{
	    PREPARE_THREAD;

	    sockreq.packet_type = sendto_req;
	    sockreq.s = s;
	    sockreq.sb = sb;
	    sockreq.params.sendto_s.realpt = realpt;
	    sockreq.params.sendto_s.buf = buf;
	    sockreq.params.sendto_s.sd = sd;
	    sockreq.params.sendto_s.msg = msg;
	    sockreq.params.sendto_s.len = len;
	    sockreq.params.sendto_s.flags = flags;
	    sockreq.params.sendto_s.to = to;
	    sockreq.params.sendto_s.tolen = tolen;

	    TRIGGER_THREAD;
	    if (sb->resultval == -1)
	    {
		if (sb->sb_errno != WSAEWOULDBLOCK-WSABASEERR || !(sb->ftable[sd-1] & SF_BLOCKING)) break;
	    }
	    else
	    {
		realpt += sb->resultval;
		len -= sb->resultval;
		
		if (len <= 0) break;
		else continue;
	    }

	    if ((wMsg = allocasyncmsg(sb,sd,s)) != 0)
	    {
		WSAAsyncSelect(s,hWndSelector ? hAmigaWnd : hSockWnd,wMsg,FD_WRITE);
			
		WAITSIGNAL;
		
		cancelasyncmsg(wMsg);
		
		if (sb->eintr)
		{
		    TRACE(("[interrupted]\n"));
		    return;
		}
	    }
	    else break;
	}

	ENDBLOCKING;
    }
    else sb->resultval = -1;

#ifdef TRACING_ENABLED
    if (sb->resultval == -1) TRACE(("failed (%d)\n",sb->sb_errno))
    else TRACE(("%d\n",sb->resultval));
#endif
}

void host_recvfrom(SB, uae_u32 sd, uae_u32 msg, uae_u32 len, uae_u32 flags, uae_u32 addr, uae_u32 addrlen)
{
    SOCKET s;
    char *realpt;
    struct sockaddr *rp_addr = NULL;
    int hlen;
    unsigned int wMsg;

#ifdef TRACING_ENABLED
    if (addr) TRACE(("recvfrom(%d,0x%lx,%d,0x%lx,0x%lx,%d) -> ",sd,msg,len,flags,addr,get_long (addrlen)))
    else TRACE(("recv(%d,0x%lx,%d,0x%lx) -> ",sd,msg,len,flags));
#endif

    s = getsock(sb,sd);

    if (s != INVALID_SOCKET)
    {
	realpt = get_real_address (msg);

	if (addr)
	{
	    hlen = get_long (addrlen);
	    rp_addr = (struct sockaddr *)get_real_address (addr);
	}

	BEGINBLOCKING;

	for (;;)
	{
	    PREPARE_THREAD;

	    sockreq.packet_type = recvfrom_req;
	    sockreq.s = s;
	    sockreq.sb = sb;
	    sockreq.params.recvfrom_s.addr = addr;
	    sockreq.params.recvfrom_s.flags = flags;
	    sockreq.params.recvfrom_s.hlen = &hlen;
	    sockreq.params.recvfrom_s.len = len;
	    sockreq.params.recvfrom_s.realpt = realpt;
	    sockreq.params.recvfrom_s.rp_addr = rp_addr;

	    TRIGGER_THREAD;
	    if (sb->resultval == -1)
	    {
		if (sb->sb_errno == WSAEWOULDBLOCK-WSABASEERR && sb->ftable[sd-1] & SF_BLOCKING)
		{
		    if ((wMsg = allocasyncmsg(sb,sd,s)) != 0)
		    {
			WSAAsyncSelect(s,hWndSelector ? hAmigaWnd : hSockWnd,wMsg,FD_READ);

			WAITSIGNAL;
		
			cancelasyncmsg(wMsg);
		
			if (sb->eintr)
			{
			    TRACE(("[interrupted]\n"));
			    return;
			}
		    }
		    else break;
		}
		else break;
	    }
	    else break;
	}
	
	ENDBLOCKING;

	if (addr)
	{
	    prepamigaaddr(rp_addr,hlen);
	    put_long (addrlen,hlen);
	}
    }
    else sb->resultval = -1;

#ifdef TRACING_ENABLED
    if (sb->resultval == -1) TRACE(("failed (%d)\n",sb->sb_errno))
    else TRACE(("%d\n",sb->resultval));
#endif
}

uae_u32 host_shutdown(SB, uae_u32 sd, uae_u32 how)
{
    SOCKET s;
    
    TRACE(("shutdown(%d,%d) -> ",sd,how));
    
    s = getsock(sb,sd);

    if (s != INVALID_SOCKET)
    {
	if (shutdown(s,how))
	{
	    SETERRNO;
	    TRACE(("failed (%d)\n",sb->sb_errno));
	}
	else
	{
	    TRACE(("OK\n"));
	    return 0;
	}
    }
	
    return -1;
}

void host_setsockopt(SB, uae_u32 sd, uae_u32 level, uae_u32 optname, uae_u32 optval, uae_u32 len)
{
    SOCKET s;
    char buf[MAXADDRLEN];

    TRACE(("setsockopt(%d,%d,0x%lx,0x%lx,%d) -> ",sd,(short)level,optname,optval,len));

    s = getsock(sb,sd);

    if (s != INVALID_SOCKET)
    {
	if (len > sizeof buf)
	{
	    write_log ("BSDSOCK: WARNING - Excessive optlen in setsockopt() (%d)\n",len);
	    len = sizeof buf;
	}	
		
	if (level == SOL_SOCKET && optname == SO_LINGER)
	{
	    ((LINGER *)buf)->l_onoff = get_long (optval);
	    ((LINGER *)buf)->l_linger = get_long (optval+4);
	}
	else
	{
	    if (len == 4) *(long *)buf = get_long (optval);
	    else if (len == 2) *(short *)buf = get_word (optval);
	    else write_log ("BSDSOCK: ERROR - Unknown optlen (%d) in setsockopt(%d,%d)\n",level,optname);
	}

	// handle SO_EVENTMASK
	if (level == 0xffff && optname == 0x2001)
	{
	    long wsbevents = 0;
	    uae_u32 eventflags = get_long (optval);

	    sb->ftable[sd-1] = (sb->ftable[sd-1] & ~REP_ALL) | (eventflags & REP_ALL);

	    if (eventflags & REP_ACCEPT) wsbevents |= FD_ACCEPT;
	    if (eventflags & REP_CONNECT) wsbevents |= FD_CONNECT;
	    if (eventflags & REP_OOB) wsbevents |= FD_OOB;
	    if (eventflags & REP_READ) wsbevents |= FD_READ;
	    if (eventflags & REP_WRITE) wsbevents |= FD_WRITE;
	    if (eventflags & REP_CLOSE) wsbevents |= FD_CLOSE;
	    
	    if (sb->mtable[sd-1] || (sb->mtable[sd-1] = allocasyncmsg(sb,sd,s)))
	    {
		    WSAAsyncSelect(s,hWndSelector ? hAmigaWnd : hSockWnd,sb->mtable[sd-1],wsbevents);
		    sb->resultval = 0;
	    }
	    else sb->resultval = -1;
	}
	else sb->resultval = setsockopt(s,level,optname,buf,len);
		
	if (!sb->resultval)
	{
	    TRACE(("OK\n"));
	    return;
	}
	else SETERRNO;
		
	TRACE(("failed (%d)\n",sb->sb_errno));
    }
}

uae_u32 host_getsockopt(SB, uae_u32 sd, uae_u32 level, uae_u32 optname, uae_u32 optval, uae_u32 optlen)
{
	SOCKET s;
	char buf[MAXADDRLEN];
	int len = sizeof(buf);

	TRACE(("getsockopt(%d,%d,0x%lx,0x%lx,0x%lx) -> ",sd,(short)level,optname,optval,optlen));

	s = getsock(sb,sd);
	
	if (s != INVALID_SOCKET)
	{
		if (!getsockopt(s,level,optname,buf,&len))
		{
			if (level == SOL_SOCKET && optname == SO_LINGER)
			{
				put_long (optval,((LINGER *)buf)->l_onoff);
				put_long (optval+4,((LINGER *)buf)->l_linger);
			}
			else
			{
				if (len == 4) put_long (optval,*(long *)buf);
				else if (len == 2) put_word (optval,*(short *)buf);
				else write_log ("BSDSOCK: ERROR - Unknown optlen (%d) in setsockopt(%d,%d)\n",level,optname);
			}

//			put_long (optlen,len); // some programs pass the actual ength instead of a pointer to the length, so...
			TRACE(("OK (%d,%d)\n",len,*(long *)buf));
			return 0;
		}
		else
		{
			SETERRNO;
			TRACE(("failed (%d)\n",sb->sb_errno));
		}
	}

	return -1;
}

uae_u32 host_getsockname(SB, uae_u32 sd, uae_u32 name, uae_u32 namelen)
{
	SOCKET s;
	int len;
	struct sockaddr *rp_name;
	
	len = get_long (namelen);
	
	TRACE(("getsockname(%d,0x%lx,%d) -> ",sd,name,len));
	
	s = getsock(sb,sd);
	
	if (s != INVALID_SOCKET)
	{
		rp_name = (struct sockaddr *)get_real_address (name);
		
		if (getsockname(s,rp_name,&len))
		{
			SETERRNO;
			TRACE(("failed (%d)\n",sb->sb_errno));
		}
		else
		{
			TRACE(("%d\n",len));
			prepamigaaddr(rp_name,len);
			put_long (namelen,len);
			return 0;
		}
	}	

	return -1;
}

uae_u32 host_getpeername(SB, uae_u32 sd, uae_u32 name, uae_u32 namelen)
{
	SOCKET s;
	int len;
	struct sockaddr *rp_name;
	
	len = get_long (namelen);
	
	TRACE(("getpeername(%d,0x%lx,%d) -> ",sd,name,len));
	
	s = getsock(sb,sd);
	
	if (s != INVALID_SOCKET)
	{
		rp_name = (struct sockaddr *)get_real_address (name);
		
		if (getpeername(s,rp_name,&len))
		{
			SETERRNO;
			TRACE(("failed (%d)\n",sb->sb_errno));
		}
		else
		{
			TRACE(("%d\n",len));
			prepamigaaddr(rp_name,len);
			put_long (namelen,len);
			return 0;
		}
	}	

	return -1;
}

uae_u32 host_IoctlSocket(SB, uae_u32 sd, uae_u32 request, uae_u32 arg)
{
	SOCKET s;
	uae_u32 data;
	int success = SOCKET_ERROR;

	TRACE(("IoctlSocket(%d,0x%lx,0x%lx) ",sd,request,arg));

	s = getsock(sb,sd);

	if (s != INVALID_SOCKET)
	{
		switch (request)
		{
			case FIONBIO:
				TRACE(("[FIONBIO] -> "));
				if (get_long (arg))
				{
					TRACE(("nonblocking\n"));
					sb->ftable[sd-1] &= ~SF_BLOCKING;
				}
				else
				{
					TRACE(("blocking\n"));
					sb->ftable[sd-1] |= SF_BLOCKING;
				}
				success = 0;
				break;
			case FIONREAD:
				ioctlsocket(s,request,(u_long *)&data);
				TRACE(("[FIONREAD] -> %d\n",data));
				put_long (arg,data);
				success = 0;
				break;
			case FIOASYNC:
				if (get_long (arg))
				{
					sb->ftable[sd-1] |= REP_ALL;

					TRACE(("[FIOASYNC] -> enabled\n"));
					if (sb->mtable[sd-1] || (sb->mtable[sd-1] = allocasyncmsg(sb,sd,s)))
					{
						WSAAsyncSelect(s,hWndSelector ? hAmigaWnd : hSockWnd,sb->mtable[sd-1],FD_ACCEPT | FD_CONNECT | FD_OOB | FD_READ | FD_WRITE | FD_CLOSE);
						success = 0;
						break;
					}
				}
				else write_log (("BSDSOCK: WARNING - FIOASYNC disabling unsupported.\n"));

				success = -1;
				break;
			default:
				write_log ("BSDSOCK: WARNING - Unknown IoctlSocket request: 0x%08lx\n",request);
				seterrno(sb,22);	// EINVAL
		}
	}
	
	return success;
}

int host_CloseSocket(SB, int sd)
{
    unsigned int wMsg;
    SOCKET s;

    TRACE(("CloseSocket(%d) -> ",sd));

    s = getsock(sb,sd);

    if (s != INVALID_SOCKET)
    {
	if (sb->mtable[sd-1])
	{
	    asyncsb[(sb->mtable[sd-1]-0xb000)/2] = NULL;
	    sb->mtable[sd-1] = 0;
	}

	BEGINBLOCKING;

	for (;;)
	{
	    //shutdown(s,1);
	    if (!closesocket(s))
	    {
		releasesock(sb,sd);
		TRACE(("OK\n"));
		return 0;
	    }

	    SETERRNO;

	    if (sb->sb_errno != WSAEWOULDBLOCK-WSABASEERR || !(sb->ftable[sd-1] & SF_BLOCKING)) break;

	    if ((wMsg = allocasyncmsg(sb,sd,s)) != 0)
	    {
		WSAAsyncSelect(s,hWndSelector ? hAmigaWnd : hSockWnd,wMsg,FD_CLOSE);
	
		WAITSIGNAL;
		
		cancelasyncmsg(wMsg);
		
		if (sb->eintr)
		{
		    TRACE(("[interrupted]\n"));
		    break;
		}
	    }
	    else break;
	}

	ENDBLOCKING;
    }
	
    TRACE(("failed (%d)\n",sb->sb_errno));
    
    return -1;
}

// For the sake of efficiency, we do not malloc() the fd_sets here.
// 64 sockets should be enough for everyone.
static void makesocktable(SB, uae_u32 fd_set_amiga, struct fd_set *fd_set_win, int nfds, SOCKET addthis)
{
	int i, j;
	uae_u32 currlong, mask;
	SOCKET s;

	if (addthis != INVALID_SOCKET)
	{
		*fd_set_win->fd_array = addthis;
		fd_set_win->fd_count = 1;
	}
	else fd_set_win->fd_count = 0;

	if (!fd_set_amiga)
	{
		fd_set_win->fd_array[fd_set_win->fd_count] = INVALID_SOCKET;
		return;
	}

	if (nfds > sb->dtablesize)
	{
		write_log ("BSDSOCK: ERROR - select()ing more sockets (%d) than socket descriptors available (%d)!\n",nfds,sb->dtablesize);
		nfds = sb->dtablesize;
	}

	for (j = 0; ; j += 32, fd_set_amiga += 4)
	{
		currlong = get_long (fd_set_amiga);

		mask = 1;

		for (i = 0; i < 32; i++, mask <<= 1)
		{
			if (i+j > nfds)
			{
				fd_set_win->fd_array[fd_set_win->fd_count] = INVALID_SOCKET;
				return;
			}
			
			if (currlong & mask)
			{
				s = getsock(sb,j+i);
				
				if (s != INVALID_SOCKET)
				{
					fd_set_win->fd_array[fd_set_win->fd_count++] = s;

					if (fd_set_win->fd_count >= FD_SETSIZE)
					{
						write_log ("BSDSOCK: ERROR - select()ing more sockets (%d) than the hard-coded fd_set limit (%d) - please report\n",nfds,FD_SETSIZE);
						return;
					}
				}
			}
		}
	}

	fd_set_win->fd_array[fd_set_win->fd_count] = INVALID_SOCKET;
}

static void makesockbitfield(SB, uae_u32 fd_set_amiga, struct fd_set *fd_set_win, int nfds)
{
	int n, i, j, val, mask;
	SOCKET currsock;

	for (n = 0; n < nfds; n += 32)
	{
		val = 0;
		mask = 1;
		
		for (i = 0; i < 32; i++, mask <<= 1)
		{
			if ((n || i) && (currsock = sb->dtable[n+i-1]) != INVALID_SOCKET)
			{
				for (j = fd_set_win->fd_count; j--; )
				{
					if (fd_set_win->fd_array[j] == currsock)
					{
						val |= mask;
						break;
					}
				}
			}
		}

		put_long (fd_set_amiga,val);
	}
}

static void fd_zero(uae_u32 fdset, uae_u32 nfds)
{
	unsigned int i;
	
	for (i = 0; i < nfds; i += 32, fdset += 4) put_long (fdset,0);
}

// This seems to be the only way of implementing a cancelable WinSock2 select() call... sigh.
static unsigned int __stdcall thread_WaitSelect(void *index2)
{
    uae_u32 index = (uae_u32)index2;
    unsigned int result = 0;
    long nfds;
    uae_u32 readfds, writefds, exceptfds;
    uae_u32 timeout;
    struct fd_set readsocks, writesocks, exceptsocks;
    struct timeval tv;
    uae_u32 *args;

    SB;

    for (;;)
    {
	    WaitForSingleObject(hEvents[index],INFINITE);

	    if ((args = threadargs[index]) != NULL)
	    {
		    sb = (struct socketbase *)*args;
		    nfds = args[1];
		    readfds = args[2];
		    writefds = args[3];
		    exceptfds = args[4];
		    timeout = args[5];
	    
		    // construct descriptor tables
		    makesocktable(sb,readfds,&readsocks,nfds,sb->sockAbort);
		    if (writefds) makesocktable(sb,writefds,&writesocks,nfds,INVALID_SOCKET);
		    if (exceptfds) makesocktable(sb,exceptfds,&exceptsocks,nfds,INVALID_SOCKET);
	    
		    if (timeout)
		    {
			    tv.tv_sec = get_long (timeout);
			    tv.tv_usec = get_long (timeout+4);
			    TRACE(("(timeout: %d.%06d) ",tv.tv_sec,tv.tv_usec))
		    }
	    
		    TRACE(("-> "));
	    
		    sb->resultval = select(nfds+1,&readsocks,writefds ? &writesocks : NULL,exceptfds ? &exceptsocks : NULL,timeout ? &tv : 0);
		    sb->needAbort = 0;

		    if (sb->resultval == SOCKET_ERROR)
		    {
			    SETERRNO;
			    TRACE(("failed (%d) - ",sb->sb_errno));
			    if (readfds) fd_zero(readfds,nfds);
			    if (writefds) fd_zero(writefds,nfds);
			    if (exceptfds) fd_zero(exceptfds,nfds);
		    }
		    else
		    {
			    if (readfds) makesockbitfield(sb,readfds,&readsocks,nfds);
			    if (writefds) makesockbitfield(sb,writefds,&writesocks,nfds);
			    if (exceptfds) makesockbitfield(sb,exceptfds,&exceptsocks,nfds);
		    }
	    
		    SETSIGNAL;

		    threadargs[index] = NULL;
		    SetEvent(sb->hEvent);
	    }
    }
#ifndef __GNUC__
    _endthreadex( result );
#endif
    return result;
}

void host_WaitSelect(SB, uae_u32 nfds, uae_u32 readfds, uae_u32 writefds, uae_u32 exceptfds, uae_u32 timeout, uae_u32 sigmp)
{
	uae_u32 sigs, wssigs;
	int i;

	wssigs = sigmp ? get_long (sigmp) : 0;

	TRACE(("WaitSelect(%d,0x%lx,0x%lx,0x%lx,0x%lx,0x%lx) ",nfds,readfds,writefds,exceptfds,timeout,wssigs));

	if (!readfds && !writefds && !exceptfds && !timeout && !wssigs)
	{
		sb->resultval = 0;
		TRACE(("-> [ignored]\n"))
		return;
	}

	if (wssigs)
	{
		m68k_dreg (regs,0) = 0;
		m68k_dreg (regs,1) = wssigs;
		sigs = CallLib (get_long (4),-0x132) & wssigs;	// SetSignal()
		
		if (sigs)
		{
			TRACE(("-> [preempted by signals 0x%08lx]\n",sigs & wssigs));
			put_long (sigmp,sigs & wssigs);
			fd_zero(readfds,nfds);
			fd_zero(writefds,nfds);
			fd_zero(exceptfds,nfds);
			sb->resultval = 0;
			seterrno(sb,0);
			return;
		}
	}

	ResetEvent(sb->hEvent);

	sb->needAbort = 1;

	for (i = 0; i < MAX_SELECT_THREADS; i++) if (hThreads[i] && !threadargs[i]) break;

	if (i >= MAX_SELECT_THREADS)
	{
	    for (i = 0; i < MAX_SELECT_THREADS; i++)
	    {
		if (!hThreads[i])
		{
		    if ((hEvents[i] = CreateEvent(NULL,FALSE,FALSE,NULL)) == NULL || (hThreads[i] = (void *)THREAD(thread_WaitSelect,i)) == NULL)
		    {
			hThreads[i] = 0;
			write_log ("BSDSOCK: ERROR - Thread/Event creation failed - error code: %d\n",GetLastError());
			seterrno(sb,12);	// ENOMEM
			sb->resultval = -1;
			return;
		    }
		    
		    // this should improve responsiveness
		    SetThreadPriority(hThreads[i],THREAD_PRIORITY_TIME_CRITICAL);
		    break;
		}
	    }
	}
	
	if (i >= MAX_SELECT_THREADS) write_log ("BSDSOCK: ERROR - Too many select()s\n");
	else
	{
		SOCKET newsock = INVALID_SOCKET;

		threadargs[i] = (uae_u32 *)&sb;

		SetEvent(hEvents[i]);

		m68k_dreg (regs,0) = (((uae_u32)1)<<sb->signal)|sb->eintrsigs|wssigs;
		sigs = CallLib (get_long (4),-0x13e);	// Wait()

		if (sb->needAbort)
		{
			if ((newsock = socket(AF_INET,SOCK_STREAM,IPPROTO_TCP)) == INVALID_SOCKET)
				write_log ("BSDSOCK: ERROR - Cannot create socket: %d\n",WSAGetLastError());
			//shutdown(sb->sockAbort,1);
			closesocket(sb->sockAbort);
		}

		WaitForSingleObject(sb->hEvent,INFINITE);

		CANCELSIGNAL;

		if (newsock != INVALID_SOCKET) sb->sockAbort = newsock;

	if( sigmp )
	{
		    put_long (sigmp,sigs & wssigs);

		    if (sigs & sb->eintrsigs)
		    {
			    TRACE(("[interrupted]\n"));
			    sb->resultval = -1;
			    seterrno(sb,4);	// EINTR
		    }
		    else if (sigs & wssigs)
		    {
			    TRACE(("[interrupted by signals 0x%08lx]\n",sigs & wssigs));
			    sb->resultval = 0;
			    seterrno(sb,0);
		    }
	}
		else TRACE(("%d\n",sb->resultval));
	}
}

uae_u32 host_Inet_NtoA(SB, uae_u32 in)
{
	char *addr;
	struct in_addr ina;
	uae_u32 scratchbuf;

	*(uae_u32 *)&ina = htonl(in);

	TRACE(("Inet_NtoA(%lx) -> ",in));

	if ((addr = inet_ntoa(ina)) != NULL)
	{
		scratchbuf = m68k_areg (regs,6)+offsetof(struct UAEBSDBase,scratchbuf);
		strncpyha(scratchbuf,addr,SCRATCHBUFSIZE);
		TRACE(("%s\n",addr));
		return scratchbuf;
	}
	else SETERRNO;

	TRACE(("failed (%d)\n",sb->sb_errno));

	return 0;
}

uae_u32 host_inet_addr(uae_u32 cp)
{
	uae_u32 addr;
	char *cp_rp;

	cp_rp = get_real_address (cp);

	addr = htonl(inet_addr(cp_rp));

	TRACE(("inet_addr(%s) -> 0x%08lx\n",cp_rp,addr));

	return addr;
}

void host_gethostbynameaddr(SB, uae_u32 name, uae_u32 namelen, long addrtype)
{
	HOSTENT *h;
	int size, numaliases = 0, numaddr = 0;
	uae_u32 aptr;
	char *name_rp;
	int i;
	uae_u32 addr;
	uae_u32 *addr_list[2];

	char buf[MAXGETHOSTSTRUCT];
	unsigned int wMsg = 0;

	name_rp = get_real_address (name);

	if (addrtype == -1)
	{
		TRACE(("gethostbyname(%s) -> ",name_rp));
		
		// workaround for numeric host "names"
		if ((addr = inet_addr(name_rp)) != INADDR_NONE)
		{
			seterrno(sb,0);
			((HOSTENT *)buf)->h_name = name_rp;
			((HOSTENT *)buf)->h_aliases = NULL;
			((HOSTENT *)buf)->h_addrtype = AF_INET;
			((HOSTENT *)buf)->h_length = 4;
			((HOSTENT *)buf)->h_addr_list = (char **)&addr_list;
			addr_list[0] = &addr;
			addr_list[1] = NULL;
	
			goto kludge;
		}
	}
	else
	{
		TRACE(("gethostbyaddr(0x%lx,0x%lx,%ld) -> ",name,namelen,addrtype));
	}
	
	if ((wMsg = allocasyncmsg(sb,0,INVALID_SOCKET)) != 0)
	{
		if ((sb->hAsyncTask = addrtype == -1 ? WSAAsyncGetHostByName(hWndSelector ? hAmigaWnd : hSockWnd,wMsg,name_rp,buf,sizeof buf) : WSAAsyncGetHostByAddr(hWndSelector ? hAmigaWnd : hSockWnd,wMsg,name_rp,namelen,addrtype,buf,sizeof buf)) != NULL)
		{
			while (sb->hAsyncTask) WAITSIGNAL;

			sockabort(sb);

			if (!sb->sb_errno)
			{
kludge:
				h = (HOSTENT *)buf;
				
				// compute total size of hostent
				size = 28;
				if (h->h_name != NULL) size += strlen(h->h_name)+1;
		
				if (h->h_aliases != NULL)
					while (h->h_aliases[numaliases]) size += strlen(h->h_aliases[numaliases++])+5;
		
				if (h->h_addr_list != NULL)
				{
					while (h->h_addr_list[numaddr]) numaddr++;
					size += numaddr*(h->h_length+4);
				}
		
				if (sb->hostent)
				{
		    uae_FreeMem( sb->hostent, sb->hostentsize );
				}

		sb->hostent = uae_AllocMem( size, 0 );
		
				if (!sb->hostent)
				{
					write_log ("BSDSOCK: WARNING - gethostby%s() ran out of Amiga memory (couldn't allocate %ld bytes) while returning result of lookup for '%s'\n",addrtype == -1 ? "name" : "addr",size,(char *)name);
					seterrno(sb,12); // ENOMEM
					return;
				}
				
				sb->hostentsize = size;
				
				aptr = sb->hostent+28+numaliases*4+numaddr*4;
			
				// transfer hostent to Amiga memory
				put_long (sb->hostent+4,sb->hostent+20);
				put_long (sb->hostent+8,h->h_addrtype);
				put_long (sb->hostent+12,h->h_length);
				put_long (sb->hostent+16,sb->hostent+24+numaliases*4);
				
				for (i = 0; i < numaliases; i++) put_long (sb->hostent+20+i*4,addstr(&aptr,h->h_aliases[i]));
				put_long (sb->hostent+20+numaliases*4,0);
				for (i = 0; i < numaddr; i++) put_long (sb->hostent+24+(numaliases+i)*4,addmem(&aptr,h->h_addr_list[i],h->h_length));
				put_long (sb->hostent+24+numaliases*4+numaddr*4,0);
				put_long (sb->hostent,aptr);
				addstr(&aptr,h->h_name);

				TRACE(("OK (%s)\n",h->h_name));
				seterrno(sb,0);
			}
			else
			{
				TRACE(("failed (%d/%d)\n",sb->sb_errno,sb->sb_herrno))
			}
		}
		else
		{
			seterrno(sb,12); // ENOMEM - well...
			write_log ("BSDSOCK: ERROR - WSAAsyncGetHostBy%s() failed - error code: %d\n",addrtype == -1 ? "Name" : "Addr",WSAGetLastError());
		}

		if (wMsg) cancelasyncmsg(wMsg);
	}
}

void host_getservbynameport(SB, uae_u32 nameport, uae_u32 proto, uae_u32 type)
{
	SERVENT *s;
	int size, numaliases = 0;
	uae_u32 aptr;
	char *name_rp = NULL, *proto_rp = NULL;
	int i;

	char buf[MAXGETHOSTSTRUCT];
	unsigned int wMsg;

	if (proto) proto_rp = get_real_address (proto);

	if (type)
	{
		TRACE(("getservbyport(%d,%s) -> ",nameport,proto_rp ? proto_rp : "NULL"));
	}
	else
	{
		name_rp = get_real_address (nameport);
		TRACE(("getservbyname(%s,%s) -> ",name_rp,proto_rp ? proto_rp : "NULL"));
	}

	if ((wMsg = allocasyncmsg(sb,0,INVALID_SOCKET)) != 0)
	{
		if ((sb->hAsyncTask = type ? WSAAsyncGetServByPort(hWndSelector ? hAmigaWnd : hSockWnd,wMsg,nameport,proto_rp,buf,sizeof buf) : WSAAsyncGetServByName(hWndSelector ? hAmigaWnd : hSockWnd,wMsg,name_rp,proto_rp,buf,sizeof buf)) != NULL)
		{
			while (sb->hAsyncTask) WAITSIGNAL;

			sockabort(sb);

			if (!sb->sb_errno)
			{
				s = (SERVENT *)buf;

				// compute total size of servent
				size = 20;
				if (s->s_name != NULL) size += strlen(s->s_name)+1;
				if (s->s_proto != NULL) size += strlen(s->s_proto)+1;

				if (s->s_aliases != NULL)
					while (s->s_aliases[numaliases]) size += strlen(s->s_aliases[numaliases++])+5;

				if (sb->servent)
				{
		    uae_FreeMem( sb->servent, sb->serventsize );
				}

		sb->servent = uae_AllocMem( size, 0 );

				if (!sb->servent)
				{
					write_log ("BSDSOCK: WARNING - getservby%s() ran out of Amiga memory (couldn't allocate %ld bytes)\n",type ? "port" : "name",size);
					seterrno(sb,12); // ENOMEM
					return;
				}

				sb->serventsize = size;
				
				aptr = sb->servent+20+numaliases*4;
			
				// transfer servent to Amiga memory
				put_long (sb->servent+4,sb->servent+16);
				put_long (sb->servent+8,(unsigned short)htons(s->s_port));
				
				for (i = 0; i < numaliases; i++) put_long (sb->servent+16+i*4,addstr(&aptr,s->s_aliases[i]));
				put_long (sb->servent+16+numaliases*4,0);
				put_long (sb->servent,aptr);
				addstr(&aptr,s->s_name);
				put_long (sb->servent+12,aptr);
				addstr(&aptr,s->s_proto);

				TRACE(("OK (%s, %d)\n",s->s_name,(unsigned short)htons(s->s_port)));
				seterrno(sb,0);
			}
			else
			{
				TRACE(("failed (%d)\n",sb->sb_errno))
			}
		}
		else
		{
			seterrno(sb,12); // ENOMEM - well...
			write_log ("BSDSOCK: ERROR - WSAAsyncGetServBy%s() failed - error code: %d\n",type ? "Port" : "Name",WSAGetLastError());
		}
		
		cancelasyncmsg(wMsg);
	}
}

void host_getprotobyname(SB, uae_u32 name)
{
	PROTOENT *p;
	int size, numaliases = 0;
	uae_u32 aptr;
	char *name_rp;
	int i;

	char buf[MAXGETHOSTSTRUCT];
	unsigned int wMsg;

	name_rp = get_real_address (name);

	TRACE(("getprotobyname(%s) -> ",name_rp));
	
	if ((wMsg = allocasyncmsg(sb,0,INVALID_SOCKET)) != 0)
	{
		if ((sb->hAsyncTask = WSAAsyncGetProtoByName(hWndSelector ? hAmigaWnd : hSockWnd,wMsg,name_rp,buf,sizeof buf)) != NULL)
		{
			while (sb->hAsyncTask) WAITSIGNAL;

			sockabort(sb);

			if (!sb->sb_errno)
			{
				p = (PROTOENT *)buf;

				// compute total size of protoent
				size = 16;
				if (p->p_name != NULL) size += strlen(p->p_name)+1;

				if (p->p_aliases != NULL)
					while (p->p_aliases[numaliases]) size += strlen(p->p_aliases[numaliases++])+5;

				if (sb->protoent)
				{
		    uae_FreeMem( sb->protoent, sb->protoentsize );
				}

				sb->protoent = uae_AllocMem( size, 0 );

				if (!sb->protoent)
				{
					write_log ("BSDSOCK: WARNING - getprotobyname() ran out of Amiga memory (couldn't allocate %ld bytes) while returning result of lookup for '%s'\n",size,(char *)name);
					seterrno(sb,12); // ENOMEM
					return;
				}

				sb->protoentsize = size;
				
				aptr = sb->protoent+16+numaliases*4;
			
				// transfer protoent to Amiga memory
				put_long (sb->protoent+4,sb->protoent+12);
				put_long (sb->protoent+8,p->p_proto);
				
				for (i = 0; i < numaliases; i++) put_long (sb->protoent+12+i*4,addstr(&aptr,p->p_aliases[i]));
				put_long (sb->protoent+12+numaliases*4,0);
				put_long (sb->protoent,aptr);
				addstr(&aptr,p->p_name);
				TRACE(("OK (%s, %d)\n",p->p_name,p->p_proto));
				seterrno(sb,0);
			}
			else
			{
				TRACE(("failed (%d)\n",sb->sb_errno))
			}
		}
		else
		{
			seterrno(sb,12); // ENOMEM - well...
			write_log ("BSDSOCK: ERROR - WSAAsyncGetProtoByName() failed - error code: %d\n",WSAGetLastError());
		}
		
		cancelasyncmsg(wMsg);
	}
}

uae_u32 host_gethostname(uae_u32 name, uae_u32 namelen)
{
	return gethostname(get_real_address (name),namelen);
}

#endif