1 /* Async WINSOCK DNS services
3 * Copyright (C) 1993,1994,1996,1997 John Brezak, Erik Bos, Alex Korobka.
4 * Copyright (C) 1999 Marcus Meissner
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 * NOTE: If you make any changes to fix a particular app, make sure
21 * they don't break something else like Netscape or telnet and ftp
22 * clients and servers (www.winsite.com got a lot of those).
25 * - Add WSACancel* and correct handle management. (works rather well for
27 * - Verify & Check all calls for correctness
28 * (currently only WSAGetHostByName*, WSAGetServByPort* calls)
29 * - Check error returns.
30 * - mirc/mirc32 Finger @linux.kernel.org sometimes fails in threaded mode.
32 * - This implementation did ignore the "NOTE:" section above (since the
33 * whole stuff did not work anyway to other changes).
37 #include "wine/port.h"
40 #include <sys/types.h>
44 #ifdef HAVE_SYS_IOCTL_H
45 # include <sys/ioctl.h>
47 #ifdef HAVE_SYS_FILIO_H
48 # include <sys/filio.h>
51 #include <sys/ioccom.h>
52 #ifdef HAVE_SYS_SOCKIO_H
53 # include <sys/sockio.h>
58 # include <sys/so_ioctl.h>
61 #ifdef HAVE_SYS_PARAM_H
62 # include <sys/param.h>
68 #ifdef HAVE_SYS_WAIT_H
71 #ifdef HAVE_SYS_SOCKET_H
72 #include <sys/socket.h>
74 #ifdef HAVE_NETINET_IN_H
75 # include <netinet/in.h>
77 #ifdef HAVE_ARPA_INET_H
78 # include <arpa/inet.h>
83 #ifdef HAVE_SYS_ERRNO_H
84 #include <sys/errno.h>
91 #ifdef HAVE_ARPA_NAMESER_H
92 # include <arpa/nameser.h>
98 #include "wine/winbase16.h"
101 #include "winsock2.h"
103 #include "wine/winsock16.h"
106 #include "wine/debug.h"
108 WINE_DEFAULT_DEBUG_CHANNEL(winsock);
111 /* critical section to protect some non-rentrant net function */
112 CRITICAL_SECTION csWSgetXXXbyYYY = CRITICAL_SECTION_INIT("csWSgetXXXbyYYY");
114 /* protoptypes of some functions in socket.c
116 UINT16 wsaErrno(void);
117 UINT16 wsaHerrno(int errnr);
119 #define AQ_WIN16 0x00
120 #define AQ_WIN32 0x04
121 #define HB_WIN32(hb) (hb->flags & AQ_WIN32)
122 #define AQ_NUMBER 0x00
124 #define AQ_COPYPTR1 0x10
125 #define AQ_DUPLOWPTR1 0x20
126 #define AQ_MASKPTR1 0x30
127 #define AQ_COPYPTR2 0x40
128 #define AQ_DUPLOWPTR2 0x80
129 #define AQ_MASKPTR2 0xC0
132 #define AQ_GETPROTO 1
136 /* ----------------------------------- helper functions - */
138 static int list_size(char** l, int item_size)
143 j += (item_size) ? item_size : strlen(l[i]) + 1;
144 j += (i + 1) * sizeof(char*); }
148 static int list_dup(char** l_src, char* ref, char* base, int item_size)
150 /* base is either either equal to ref or 0 or SEGPTR */
153 char** l_to = (char**)ref;
156 for(j=0;l_src[j];j++) ;
157 p += (j + 1) * sizeof(char*);
159 { l_to[i] = base + (p - ref);
160 k = ( item_size ) ? item_size : strlen(l_src[i]) + 1;
161 memcpy(p, l_src[i], k); p += k; }
168 static int hostent_size(struct hostent* p_he)
172 { size = sizeof(struct hostent);
173 size += strlen(p_he->h_name) + 1;
174 size += list_size(p_he->h_aliases, 0);
175 size += list_size(p_he->h_addr_list, p_he->h_length ); }
179 /* Copy hostent to p_to, fix up inside pointers using p_base (different for
180 * Win16 (linear vs. segmented). Return -neededsize on overrun.
182 static int WS_copy_he(char *p_to,char *p_base,int t_size,struct hostent* p_he, int flag)
184 char* p_name,*p_aliases,*p_addr,*p;
185 struct ws_hostent16 *p_to16 = (struct ws_hostent16*)p_to;
186 struct WS_hostent *p_to32 = (struct WS_hostent*)p_to;
187 int size = hostent_size(p_he) +
189 (flag & AQ_WIN16) ? sizeof(struct ws_hostent16) : sizeof(struct WS_hostent)
190 - sizeof(struct hostent)
196 p += (flag & AQ_WIN16) ?
197 sizeof(struct ws_hostent16) : sizeof(struct WS_hostent);
199 strcpy(p, p_he->h_name); p += strlen(p) + 1;
201 p += list_dup(p_he->h_aliases, p, p_base + (p - (char*)p_to), 0);
203 list_dup(p_he->h_addr_list, p, p_base + (p - (char*)p_to), p_he->h_length);
207 p_to16->h_addrtype = (INT16)p_he->h_addrtype;
208 p_to16->h_length = (INT16)p_he->h_length;
209 p_to16->h_name = (SEGPTR)(p_base + (p_name - p_to));
210 p_to16->h_aliases = (SEGPTR)(p_base + (p_aliases - p_to));
211 p_to16->h_addr_list = (SEGPTR)(p_base + (p_addr - p_to));
215 p_to32->h_addrtype = p_he->h_addrtype;
216 p_to32->h_length = p_he->h_length;
217 p_to32->h_name = (p_base + (p_name - p_to));
218 p_to32->h_aliases = (char **)(p_base + (p_aliases - p_to));
219 p_to32->h_addr_list = (char **)(p_base + (p_addr - p_to));
227 static int protoent_size(struct protoent* p_pe)
231 { size = sizeof(struct protoent);
232 size += strlen(p_pe->p_name) + 1;
233 size += list_size(p_pe->p_aliases, 0); }
237 /* Copy protoent to p_to, fix up inside pointers using p_base (different for
238 * Win16 (linear vs. segmented). Return -neededsize on overrun.
240 static int WS_copy_pe(char *p_to,char *p_base,int t_size,struct protoent* p_pe, int flag)
242 char* p_name,*p_aliases,*p;
243 struct ws_protoent16 *p_to16 = (struct ws_protoent16*)p_to;
244 struct WS_protoent *p_to32 = (struct WS_protoent*)p_to;
245 int size = protoent_size(p_pe) +
247 (flag & AQ_WIN16) ? sizeof(struct ws_protoent16) : sizeof(struct WS_protoent)
248 - sizeof(struct protoent)
254 p += (flag & AQ_WIN16) ?
255 sizeof(struct ws_protoent16) : sizeof(struct WS_protoent);
257 strcpy(p, p_pe->p_name); p += strlen(p) + 1;
259 list_dup(p_pe->p_aliases, p, p_base + (p - (char*)p_to), 0);
263 p_to16->p_proto = (INT16)p_pe->p_proto;
264 p_to16->p_name = (SEGPTR)(p_base) + (p_name - p_to);
265 p_to16->p_aliases = (SEGPTR)((p_base) + (p_aliases - p_to));
269 p_to32->p_proto = p_pe->p_proto;
270 p_to32->p_name = (p_base) + (p_name - p_to);
271 p_to32->p_aliases = (char **)((p_base) + (p_aliases - p_to));
279 static int servent_size(struct servent* p_se)
283 size += sizeof(struct servent);
284 size += strlen(p_se->s_proto) + strlen(p_se->s_name) + 2;
285 size += list_size(p_se->s_aliases, 0);
290 /* Copy servent to p_to, fix up inside pointers using p_base (different for
291 * Win16 (linear vs. segmented). Return -neededsize on overrun.
292 * Take care of different Win16/Win32 servent structs (packing !)
294 static int WS_copy_se(char *p_to,char *p_base,int t_size,struct servent* p_se, int flag)
296 char* p_name,*p_aliases,*p_proto,*p;
297 struct ws_servent16 *p_to16 = (struct ws_servent16*)p_to;
298 struct WS_servent *p_to32 = (struct WS_servent*)p_to;
299 int size = servent_size(p_se) +
301 (flag & AQ_WIN16) ? sizeof(struct ws_servent16) : sizeof(struct WS_servent)
302 - sizeof(struct servent)
308 p += (flag & AQ_WIN16) ?
309 sizeof(struct ws_servent16) : sizeof(struct WS_servent);
311 strcpy(p, p_se->s_name); p += strlen(p) + 1;
313 strcpy(p, p_se->s_proto); p += strlen(p) + 1;
315 list_dup(p_se->s_aliases, p, p_base + (p - p_to), 0);
319 p_to16->s_port = (INT16)p_se->s_port;
320 p_to16->s_name = (SEGPTR)(p_base + (p_name - p_to));
321 p_to16->s_proto = (SEGPTR)(p_base + (p_proto - p_to));
322 p_to16->s_aliases = (SEGPTR)(p_base + (p_aliases - p_to));
326 p_to32->s_port = p_se->s_port;
327 p_to32->s_name = (p_base + (p_name - p_to));
328 p_to32->s_proto = (p_base + (p_proto - p_to));
329 p_to32->s_aliases = (char **)(p_base + (p_aliases - p_to));
335 static HANDLE __ws_async_handle = 0xdead;
337 /* Generic async query struct. we use symbolic names for the different queries
340 typedef struct _async_query {
344 #define host_name ptr1
345 #define host_addr ptr1
346 #define serv_name ptr1
347 #define proto_name ptr1
349 #define serv_proto ptr2
351 #define host_len int1
352 #define proto_number int1
353 #define serv_port int1
355 #define host_type int2
359 HANDLE16 async_handle;
366 /****************************************************************************
367 * The async query function.
369 * It is either called as a thread startup routine or directly. It has
370 * to free the passed arg from the process heap and PostMessageA the async
371 * result or the error code.
374 * - errorhandling not verified.
376 static DWORD WINAPI _async_queryfun(LPVOID arg) {
377 async_query *aq = (async_query*)arg;
380 char *targetptr = (HB_WIN32(aq)?(char*)aq->sbuf:(char*)MapSL(aq->sbuf));
382 switch (aq->flags & AQ_GETMASK) {
385 char *copy_hostent = targetptr;
386 #if HAVE_LINUX_GETHOSTBYNAME_R_6
389 struct hostent hostentry;
390 int locerr = ENOBUFS;
392 extrabuf=HeapAlloc(GetProcessHeap(),0,ebufsize) ;
394 int res = (aq->flags & AQ_NAME) ?
395 gethostbyname_r(aq->host_name,
396 &hostentry, extrabuf, ebufsize, &he, &locerr):
397 gethostbyaddr_r(aq->host_addr,aq->host_len,aq->host_type,
398 &hostentry, extrabuf, ebufsize, &he, &locerr);
399 if( res != ERANGE) break;
401 extrabuf=HeapReAlloc(GetProcessHeap(),0,extrabuf,ebufsize) ;
403 if (!he) fail = ((locerr < 0) ? wsaErrno() : wsaHerrno(locerr));
405 EnterCriticalSection( &csWSgetXXXbyYYY );
406 he = (aq->flags & AQ_NAME) ?
407 gethostbyname(aq->host_name):
408 gethostbyaddr(aq->host_addr,aq->host_len,aq->host_type);
409 if (!he) fail = ((h_errno < 0) ? wsaErrno() : wsaHerrno(h_errno));
412 size = WS_copy_he(copy_hostent,(char*)aq->sbuf,aq->sbuflen,he,aq->flags);
418 #if HAVE_LINUX_GETHOSTBYNAME_R_6
419 HeapFree(GetProcessHeap(),0,extrabuf);
421 LeaveCriticalSection( &csWSgetXXXbyYYY );
427 char *copy_protoent = targetptr;
428 EnterCriticalSection( &csWSgetXXXbyYYY );
429 pe = (aq->flags & AQ_NAME)?
430 getprotobyname(aq->proto_name) :
431 getprotobynumber(aq->proto_number);
433 size = WS_copy_pe(copy_protoent,(char*)aq->sbuf,aq->sbuflen,pe,aq->flags);
439 if (aq->flags & AQ_NAME)
440 MESSAGE("protocol %s not found; You might want to add "
441 "this to /etc/protocols\n", debugstr_a(aq->proto_name) );
443 MESSAGE("protocol number %d not found; You might want to add "
444 "this to /etc/protocols\n", aq->proto_number );
447 LeaveCriticalSection( &csWSgetXXXbyYYY );
452 char *copy_servent = targetptr;
453 EnterCriticalSection( &csWSgetXXXbyYYY );
454 se = (aq->flags & AQ_NAME)?
455 getservbyname(aq->serv_name,aq->serv_proto) :
456 getservbyport(aq->serv_port,aq->serv_proto);
458 size = WS_copy_se(copy_servent,(char*)aq->sbuf,aq->sbuflen,se,aq->flags);
464 if (aq->flags & AQ_NAME)
465 MESSAGE("service %s protocol %s not found; You might want to add "
466 "this to /etc/services\n", debugstr_a(aq->serv_name) ,
467 aq->serv_proto ? debugstr_a(aq->serv_proto ):"*");
469 MESSAGE("service on port %d protocol %s not found; You might want to add "
470 "this to /etc/services\n", aq->serv_port,
471 aq->serv_proto ? debugstr_a(aq->serv_proto ):"*");
474 LeaveCriticalSection( &csWSgetXXXbyYYY );
478 PostMessageA(aq->hWnd,aq->uMsg,aq->async_handle,size|(fail<<16));
479 HeapFree(GetProcessHeap(),0,arg);
483 /****************************************************************************
484 * The main async help function.
486 * It either starts a thread or just calls the function directly for platforms
487 * with no thread support. This relies on the fact that PostMessage() does
488 * not actually call the windowproc before the function returns.
490 static HANDLE16 __WSAsyncDBQuery(
491 HWND hWnd, UINT uMsg,INT int1,LPCSTR ptr1, INT int2, LPCSTR ptr2,
492 void *sbuf, INT sbuflen, UINT flags
500 /* allocate buffer to copy protocol- and service name to */
501 /* note: this is done in the calling thread so we can return */
502 /* a decent error code if the Alloc fails */
504 switch (flags & AQ_MASKPTR1) {
506 case AQ_COPYPTR1: xbuflen += int1; break;
507 case AQ_DUPLOWPTR1: xbuflen += strlen(ptr1) + 1; break;
510 switch (flags & AQ_MASKPTR2) {
512 case AQ_COPYPTR2: xbuflen += int2; break;
513 case AQ_DUPLOWPTR2: xbuflen += strlen(ptr2) + 1; break;
516 if(!(aq = HeapAlloc(GetProcessHeap(),0,sizeof(async_query) + xbuflen))) {
517 SetLastError(WSAEWOULDBLOCK); /* insufficient resources */
522 if (ptr1) switch (flags & AQ_MASKPTR1) {
524 case AQ_COPYPTR1: memcpy(pto, ptr1, int1); ptr1 = pto; pto += int1; break;
525 case AQ_DUPLOWPTR1: pfm = ptr1; ptr1 = pto; do *pto++ = tolower(*pfm); while (*pfm++); break;
527 if (ptr2) switch (flags & AQ_MASKPTR2) {
529 case AQ_COPYPTR2: memcpy(pto, ptr2, int2); ptr2 = pto; pto += int2; break;
530 case AQ_DUPLOWPTR2: pfm = ptr2; ptr2 = pto; do *pto++ = tolower(*pfm); while (*pfm++); break;
539 aq->async_handle = ++__ws_async_handle;
541 aq->sbuf = (SEGPTR)sbuf;
542 aq->sbuflen = sbuflen;
545 if (CreateThread(NULL,0,_async_queryfun,aq,0,NULL) == INVALID_HANDLE_VALUE)
548 return __ws_async_handle;
552 /***********************************************************************
553 * WSAAsyncGetHostByAddr (WINSOCK.102)
555 HANDLE16 WINAPI WSAAsyncGetHostByAddr16(HWND16 hWnd, UINT16 uMsg, LPCSTR addr,
556 INT16 len, INT16 type, SEGPTR sbuf, INT16 buflen)
558 TRACE("hwnd %04x, msg %04x, addr %08x[%i]\n",
559 hWnd, uMsg, (unsigned)addr , len );
560 return __WSAsyncDBQuery(hWnd,uMsg,len,addr,type,NULL,(void*)sbuf,buflen,
561 AQ_NUMBER|AQ_COPYPTR1|AQ_WIN16|AQ_GETHOST);
564 /***********************************************************************
565 * WSAAsyncGetHostByAddr (WS2_32.102)
567 HANDLE WINAPI WSAAsyncGetHostByAddr(HWND hWnd, UINT uMsg, LPCSTR addr,
568 INT len, INT type, LPSTR sbuf, INT buflen)
570 TRACE("hwnd %04x, msg %04x, addr %08x[%i]\n",
571 hWnd, uMsg, (unsigned)addr , len );
572 return __WSAsyncDBQuery(hWnd,uMsg,len,addr,type,NULL,sbuf,buflen,
573 AQ_NUMBER|AQ_COPYPTR1|AQ_WIN32|AQ_GETHOST);
576 /***********************************************************************
577 * WSAAsyncGetHostByName (WINSOCK.103)
579 HANDLE16 WINAPI WSAAsyncGetHostByName16(HWND16 hWnd, UINT16 uMsg, LPCSTR name,
580 SEGPTR sbuf, INT16 buflen)
582 TRACE("hwnd %04x, msg %04x, host %s, buffer %i\n",
583 hWnd, uMsg, (name)?name:"<null>", (int)buflen );
584 return __WSAsyncDBQuery(hWnd,uMsg,0,name,0,NULL,(void*)sbuf,buflen,
585 AQ_NAME|AQ_DUPLOWPTR1|AQ_WIN16|AQ_GETHOST);
588 /***********************************************************************
589 * WSAAsyncGetHostByName (WS2_32.103)
591 HANDLE WINAPI WSAAsyncGetHostByName(HWND hWnd, UINT uMsg, LPCSTR name,
592 LPSTR sbuf, INT buflen)
594 TRACE("hwnd %04x, msg %08x, host %s, buffer %i\n",
595 (HWND16)hWnd, uMsg, (name)?name:"<null>", (int)buflen );
596 return __WSAsyncDBQuery(hWnd,uMsg,0,name,0,NULL,sbuf,buflen,
597 AQ_NAME|AQ_DUPLOWPTR1|AQ_WIN32|AQ_GETHOST);
600 /***********************************************************************
601 * WSAAsyncGetProtoByName (WINSOCK.105)
603 HANDLE16 WINAPI WSAAsyncGetProtoByName16(HWND16 hWnd, UINT16 uMsg, LPCSTR name,
604 SEGPTR sbuf, INT16 buflen)
606 TRACE("hwnd %04x, msg %08x, protocol %s\n",
607 (HWND16)hWnd, uMsg, (name)?name:"<null>" );
608 return __WSAsyncDBQuery(hWnd,uMsg,0,name,0,NULL,(void*)sbuf,buflen,
609 AQ_NAME|AQ_DUPLOWPTR1|AQ_WIN16|AQ_GETPROTO);
612 /***********************************************************************
613 * WSAAsyncGetProtoByName (WS2_32.105)
615 HANDLE WINAPI WSAAsyncGetProtoByName(HWND hWnd, UINT uMsg, LPCSTR name,
616 LPSTR sbuf, INT buflen)
618 TRACE("hwnd %04x, msg %08x, protocol %s\n",
619 (HWND16)hWnd, uMsg, (name)?name:"<null>" );
620 return __WSAsyncDBQuery(hWnd,uMsg,0,name,0,NULL,sbuf,buflen,
621 AQ_NAME|AQ_DUPLOWPTR1|AQ_WIN32|AQ_GETPROTO);
625 /***********************************************************************
626 * WSAAsyncGetProtoByNumber (WINSOCK.104)
628 HANDLE16 WINAPI WSAAsyncGetProtoByNumber16(HWND16 hWnd,UINT16 uMsg,INT16 number,
629 SEGPTR sbuf, INT16 buflen)
631 TRACE("hwnd %04x, msg %04x, num %i\n", hWnd, uMsg, number );
632 return __WSAsyncDBQuery(hWnd,uMsg,number,NULL,0,NULL,(void*)sbuf,buflen,
633 AQ_GETPROTO|AQ_NUMBER|AQ_WIN16);
636 /***********************************************************************
637 * WSAAsyncGetProtoByNumber (WS2_32.104)
639 HANDLE WINAPI WSAAsyncGetProtoByNumber(HWND hWnd, UINT uMsg, INT number,
640 LPSTR sbuf, INT buflen)
642 TRACE("hwnd %04x, msg %04x, num %i\n", hWnd, uMsg, number );
643 return __WSAsyncDBQuery(hWnd,uMsg,number,NULL,0,NULL,sbuf,buflen,
644 AQ_GETPROTO|AQ_NUMBER|AQ_WIN32);
647 /***********************************************************************
648 * WSAAsyncGetServByName (WINSOCK.107)
650 HANDLE16 WINAPI WSAAsyncGetServByName16(HWND16 hWnd, UINT16 uMsg, LPCSTR name,
651 LPCSTR proto, SEGPTR sbuf, INT16 buflen)
653 TRACE("hwnd %04x, msg %04x, name %s, proto %s\n",
654 hWnd, uMsg, (name)?name:"<null>", (proto)?proto:"<null>");
655 return __WSAsyncDBQuery(hWnd,uMsg,0,name,0,proto,(void*)sbuf,buflen,
656 AQ_GETSERV|AQ_NAME|AQ_DUPLOWPTR1|AQ_DUPLOWPTR2|AQ_WIN16);
659 /***********************************************************************
660 * WSAAsyncGetServByName (WS2_32.107)
662 HANDLE WINAPI WSAAsyncGetServByName(HWND hWnd, UINT uMsg, LPCSTR name,
663 LPCSTR proto, LPSTR sbuf, INT buflen)
665 TRACE("hwnd %04x, msg %04x, name %s, proto %s\n",
666 hWnd, uMsg, (name)?name:"<null>", (proto)?proto:"<null>");
667 return __WSAsyncDBQuery(hWnd,uMsg,0,name,0,proto,sbuf,buflen,
668 AQ_GETSERV|AQ_NAME|AQ_DUPLOWPTR1|AQ_DUPLOWPTR2|AQ_WIN32);
671 /***********************************************************************
672 * WSAAsyncGetServByPort (WINSOCK.106)
674 HANDLE16 WINAPI WSAAsyncGetServByPort16(HWND16 hWnd, UINT16 uMsg, INT16 port,
675 LPCSTR proto, SEGPTR sbuf, INT16 buflen)
677 TRACE("hwnd %04x, msg %04x, port %i, proto %s\n",
678 hWnd, uMsg, port, (proto)?proto:"<null>" );
679 return __WSAsyncDBQuery(hWnd,uMsg,port,NULL,0,proto,(void*)sbuf,buflen,
680 AQ_GETSERV|AQ_NUMBER|AQ_DUPLOWPTR2|AQ_WIN16);
683 /***********************************************************************
684 * WSAAsyncGetServByPort (WS2_32.106)
686 HANDLE WINAPI WSAAsyncGetServByPort(HWND hWnd, UINT uMsg, INT port,
687 LPCSTR proto, LPSTR sbuf, INT buflen)
689 TRACE("hwnd %04x, msg %04x, port %i, proto %s\n",
690 hWnd, uMsg, port, (proto)?proto:"<null>" );
691 return __WSAsyncDBQuery(hWnd,uMsg,port,NULL,0,proto,sbuf,buflen,
692 AQ_GETSERV|AQ_NUMBER|AQ_DUPLOWPTR2|AQ_WIN32);
695 /***********************************************************************
696 * WSACancelAsyncRequest (WS2_32.108)
698 INT WINAPI WSACancelAsyncRequest(HANDLE hAsyncTaskHandle)
700 FIXME("(%08x),stub\n", hAsyncTaskHandle);
704 /***********************************************************************
705 * WSACancelAsyncRequest (WINSOCK.108)
707 INT16 WINAPI WSACancelAsyncRequest16(HANDLE16 hAsyncTaskHandle)
709 return (HANDLE16)WSACancelAsyncRequest((HANDLE)hAsyncTaskHandle);
712 /***********************************************************************
713 * WSApSetPostRoutine (WS2_32.24)
715 INT WINAPI WSApSetPostRoutine(LPWPUPOSTMESSAGE lpPostRoutine)
717 FIXME("(%p), stub !\n", lpPostRoutine);