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wine/dlls/ws2_32/async.c

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/* Async WINSOCK DNS services
*
* Copyright (C) 1993,1994,1996,1997 John Brezak, Erik Bos, Alex Korobka.
* Copyright (C) 1999 Marcus Meissner
* Copyright (C) 2009 Alexandre Julliard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*
* NOTE: If you make any changes to fix a particular app, make sure
* they don't break something else like Netscape or telnet and ftp
* clients and servers (www.winsite.com got a lot of those).
*
* FIXME:
* - Add WSACancel* and correct handle management. (works rather well for
* now without it.)
* - Verify & Check all calls for correctness
* (currently only WSAGetHostByName*, WSAGetServByPort* calls)
* - Check error returns.
* - mirc/mirc32 Finger @linux.kernel.org sometimes fails in threaded mode.
* (not sure why)
* - This implementation did ignore the "NOTE:" section above (since the
* whole stuff did not work anyway to other changes).
*/
#include "config.h"
#include "wine/port.h"
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "winsock2.h"
#include "ws2spi.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(winsock);
struct async_query_header
{
HWND hWnd;
UINT uMsg;
void *sbuf;
INT sbuflen;
HANDLE handle;
};
struct async_query_gethostbyname
{
struct async_query_header query;
char *host_name;
};
struct async_query_gethostbyaddr
{
struct async_query_header query;
char *host_addr;
int host_len;
int host_type;
};
struct async_query_getprotobyname
{
struct async_query_header query;
char *proto_name;
};
struct async_query_getprotobynumber
{
struct async_query_header query;
int proto_number;
};
struct async_query_getservbyname
{
struct async_query_header query;
char *serv_name;
char *serv_proto;
};
struct async_query_getservbyport
{
struct async_query_header query;
char *serv_proto;
int serv_port;
};
/* ----------------------------------- helper functions - */
static int list_size(char** l, int item_size)
{
int i,j = 0;
if(l)
{ for(i=0;l[i];i++)
j += (item_size) ? item_size : strlen(l[i]) + 1;
j += (i + 1) * sizeof(char*); }
return j;
}
static int list_dup(char** l_src, char* ref, int item_size)
{
char* p = ref;
char** l_to = (char**)ref;
int i,j,k;
for(j=0;l_src[j];j++) ;
p += (j + 1) * sizeof(char*);
for(i=0;i<j;i++)
{ l_to[i] = p;
k = ( item_size ) ? item_size : strlen(l_src[i]) + 1;
memcpy(p, l_src[i], k); p += k; }
l_to[i] = NULL;
return (p - ref);
}
static DWORD finish_query( struct async_query_header *query, LPARAM lparam )
{
PostMessageW( query->hWnd, query->uMsg, (WPARAM)query->handle, lparam );
HeapFree( GetProcessHeap(), 0, query );
return 0;
}
/* ----- hostent */
static LPARAM copy_he(void *base, int size, const struct WS_hostent *he)
{
char *p;
int needed;
struct WS_hostent *to = base;
if (!he) return MAKELPARAM( 0, GetLastError() );
needed = sizeof(struct WS_hostent) + strlen(he->h_name) + 1 +
list_size(he->h_aliases, 0) +
list_size(he->h_addr_list, he->h_length );
if (size < needed) return MAKELPARAM( needed, WSAENOBUFS );
to->h_addrtype = he->h_addrtype;
to->h_length = he->h_length;
p = (char *)(to + 1);
to->h_name = p;
strcpy(p, he->h_name); p += strlen(p) + 1;
to->h_aliases = (char **)p;
p += list_dup(he->h_aliases, p, 0);
to->h_addr_list = (char **)p;
list_dup(he->h_addr_list, p, he->h_length);
return MAKELPARAM( needed, 0 );
}
static DWORD WINAPI async_gethostbyname(LPVOID arg)
{
struct async_query_gethostbyname *aq = arg;
struct WS_hostent *he = WS_gethostbyname( aq->host_name );
return finish_query( &aq->query, copy_he( aq->query.sbuf, aq->query.sbuflen, he ));
}
static DWORD WINAPI async_gethostbyaddr(LPVOID arg)
{
struct async_query_gethostbyaddr *aq = arg;
struct WS_hostent *he = WS_gethostbyaddr( aq->host_addr, aq->host_len, aq->host_type );
return finish_query( &aq->query, copy_he( aq->query.sbuf, aq->query.sbuflen, he ));
}
/* ----- protoent */
static LPARAM copy_pe(void *base, int size, const struct WS_protoent* pe)
{
char *p;
int needed;
struct WS_protoent *to = base;
if (!pe) return MAKELPARAM( 0, GetLastError() );
needed = sizeof(struct WS_protoent) + strlen(pe->p_name) + 1 + list_size(pe->p_aliases, 0);
if (size < needed) return MAKELPARAM( needed, WSAENOBUFS );
to->p_proto = pe->p_proto;
p = (char *)(to + 1);
to->p_name = p;
strcpy(p, pe->p_name); p += strlen(p) + 1;
to->p_aliases = (char **)p;
list_dup(pe->p_aliases, p, 0);
return MAKELPARAM( needed, 0 );
}
static DWORD WINAPI async_getprotobyname(LPVOID arg)
{
struct async_query_getprotobyname *aq = arg;
struct WS_protoent *pe = WS_getprotobyname( aq->proto_name );
return finish_query( &aq->query, copy_pe( aq->query.sbuf, aq->query.sbuflen, pe ));
}
static DWORD WINAPI async_getprotobynumber(LPVOID arg)
{
struct async_query_getprotobynumber *aq = arg;
struct WS_protoent *pe = WS_getprotobynumber( aq->proto_number );
return finish_query( &aq->query, copy_pe( aq->query.sbuf, aq->query.sbuflen, pe ));
}
/* ----- servent */
static LPARAM copy_se(void *base, int size, const struct WS_servent* se)
{
char *p;
int needed;
struct WS_servent *to = base;
if (!se) return MAKELPARAM( 0, GetLastError() );
needed = sizeof(struct WS_servent) + strlen(se->s_proto) + strlen(se->s_name) + 2 + list_size(se->s_aliases, 0);
if (size < needed) return MAKELPARAM( needed, WSAENOBUFS );
to->s_port = se->s_port;
p = (char *)(to + 1);
to->s_name = p;
strcpy(p, se->s_name); p += strlen(p) + 1;
to->s_proto = p;
strcpy(p, se->s_proto); p += strlen(p) + 1;
to->s_aliases = (char **)p;
list_dup(se->s_aliases, p, 0);
return MAKELPARAM( needed, 0 );
}
static DWORD WINAPI async_getservbyname(LPVOID arg)
{
struct async_query_getservbyname *aq = arg;
struct WS_servent *se = WS_getservbyname( aq->serv_name, aq->serv_proto );
return finish_query( &aq->query, copy_se( aq->query.sbuf, aq->query.sbuflen, se ));
}
static DWORD WINAPI async_getservbyport(LPVOID arg)
{
struct async_query_getservbyport *aq = arg;
struct WS_servent *se = WS_getservbyport( aq->serv_port, aq->serv_proto );
return finish_query( &aq->query, copy_se( aq->query.sbuf, aq->query.sbuflen, se ));
}
/****************************************************************************
* The main async help function.
*
* It either starts a thread or just calls the function directly for platforms
* with no thread support. This relies on the fact that PostMessage() does
* not actually call the windowproc before the function returns.
*/
static HANDLE run_query( HWND hWnd, UINT uMsg, LPTHREAD_START_ROUTINE func,
struct async_query_header *query, void *sbuf, INT sbuflen )
{
static LONG next_handle = 0xdead;
HANDLE thread;
ULONG handle;
do
handle = LOWORD( InterlockedIncrement( &next_handle ));
while (!handle); /* avoid handle 0 */
query->hWnd = hWnd;
query->uMsg = uMsg;
query->handle = UlongToHandle( handle );
query->sbuf = sbuf;
query->sbuflen = sbuflen;
thread = CreateThread( NULL, 0, func, query, 0, NULL );
if (!thread)
{
SetLastError( WSAEWOULDBLOCK );
HeapFree( GetProcessHeap(), 0, query );
return 0;
}
CloseHandle( thread );
return UlongToHandle( handle );
}
/***********************************************************************
* WSAAsyncGetHostByAddr (WS2_32.102)
*/
HANDLE WINAPI WSAAsyncGetHostByAddr(HWND hWnd, UINT uMsg, LPCSTR addr,
INT len, INT type, LPSTR sbuf, INT buflen)
{
struct async_query_gethostbyaddr *aq;
TRACE("hwnd %p, msg %04x, addr %p[%i]\n", hWnd, uMsg, addr, len );
if (!(aq = HeapAlloc( GetProcessHeap(), 0, sizeof(*aq) + len )))
{
SetLastError( WSAEWOULDBLOCK );
return 0;
}
aq->host_addr = (char *)(aq + 1);
aq->host_len = len;
aq->host_type = type;
memcpy( aq->host_addr, addr, len );
return run_query( hWnd, uMsg, async_gethostbyaddr, &aq->query, sbuf, buflen );
}
/***********************************************************************
* WSAAsyncGetHostByName (WS2_32.103)
*/
HANDLE WINAPI WSAAsyncGetHostByName(HWND hWnd, UINT uMsg, LPCSTR name,
LPSTR sbuf, INT buflen)
{
struct async_query_gethostbyname *aq;
unsigned int len = strlen(name) + 1;
TRACE("hwnd %p, msg %04x, host %s, buffer %i\n", hWnd, uMsg, debugstr_a(name), buflen );
if (!(aq = HeapAlloc( GetProcessHeap(), 0, sizeof(*aq) + len )))
{
SetLastError( WSAEWOULDBLOCK );
return 0;
}
aq->host_name = (char *)(aq + 1);
strcpy( aq->host_name, name );
return run_query( hWnd, uMsg, async_gethostbyname, &aq->query, sbuf, buflen );
}
/***********************************************************************
* WSAAsyncGetProtoByName (WS2_32.105)
*/
HANDLE WINAPI WSAAsyncGetProtoByName(HWND hWnd, UINT uMsg, LPCSTR name,
LPSTR sbuf, INT buflen)
{
struct async_query_getprotobyname *aq;
unsigned int len = strlen(name) + 1;
TRACE("hwnd %p, msg %04x, proto %s, buffer %i\n", hWnd, uMsg, debugstr_a(name), buflen );
if (!(aq = HeapAlloc( GetProcessHeap(), 0, sizeof(*aq) + len )))
{
SetLastError( WSAEWOULDBLOCK );
return 0;
}
aq->proto_name = (char *)(aq + 1);
strcpy( aq->proto_name, name );
return run_query( hWnd, uMsg, async_getprotobyname, &aq->query, sbuf, buflen );
}
/***********************************************************************
* WSAAsyncGetProtoByNumber (WS2_32.104)
*/
HANDLE WINAPI WSAAsyncGetProtoByNumber(HWND hWnd, UINT uMsg, INT number,
LPSTR sbuf, INT buflen)
{
struct async_query_getprotobynumber *aq;
TRACE("hwnd %p, msg %04x, num %i\n", hWnd, uMsg, number );
if (!(aq = HeapAlloc( GetProcessHeap(), 0, sizeof(*aq) )))
{
SetLastError( WSAEWOULDBLOCK );
return 0;
}
aq->proto_number = number;
return run_query( hWnd, uMsg, async_getprotobynumber, &aq->query, sbuf, buflen );
}
/***********************************************************************
* WSAAsyncGetServByName (WS2_32.107)
*/
HANDLE WINAPI WSAAsyncGetServByName(HWND hWnd, UINT uMsg, LPCSTR name,
LPCSTR proto, LPSTR sbuf, INT buflen)
{
struct async_query_getservbyname *aq;
unsigned int len1 = strlen(name) + 1;
unsigned int len2 = proto ? strlen(proto) + 1 : 0;
TRACE("hwnd %p, msg %04x, name %s, proto %s\n", hWnd, uMsg, debugstr_a(name), debugstr_a(proto));
if (!(aq = HeapAlloc( GetProcessHeap(), 0, sizeof(*aq) + len1 + len2 )))
{
SetLastError( WSAEWOULDBLOCK );
return 0;
}
aq->serv_name = (char *)(aq + 1);
strcpy( aq->serv_name, name );
if (proto)
{
aq->serv_proto = aq->serv_name + len1;
strcpy( aq->serv_proto, proto );
}
else
aq->serv_proto = NULL;
return run_query( hWnd, uMsg, async_getservbyname, &aq->query, sbuf, buflen );
}
/***********************************************************************
* WSAAsyncGetServByPort (WS2_32.106)
*/
HANDLE WINAPI WSAAsyncGetServByPort(HWND hWnd, UINT uMsg, INT port,
LPCSTR proto, LPSTR sbuf, INT buflen)
{
struct async_query_getservbyport *aq;
unsigned int len = proto ? strlen(proto) + 1 : 0;
TRACE("hwnd %p, msg %04x, port %i, proto %s\n", hWnd, uMsg, port, debugstr_a(proto));
if (!(aq = HeapAlloc( GetProcessHeap(), 0, sizeof(*aq) + len )))
{
SetLastError( WSAEWOULDBLOCK );
return 0;
}
if (proto)
{
aq->serv_proto = (char *)(aq + 1);
strcpy( aq->serv_proto, proto );
}
else
aq->serv_proto = NULL;
aq->serv_port = port;
return run_query( hWnd, uMsg, async_getservbyport, &aq->query, sbuf, buflen );
}
/***********************************************************************
* WSACancelAsyncRequest (WS2_32.108)
*/
INT WINAPI WSACancelAsyncRequest(HANDLE hAsyncTaskHandle)
{
FIXME("(%p),stub\n", hAsyncTaskHandle);
return 0;
}
/***********************************************************************
* WSApSetPostRoutine (WS2_32.24)
*/
INT WINAPI WSApSetPostRoutine(LPWPUPOSTMESSAGE lpPostRoutine)
{
FIXME("(%p), stub !\n", lpPostRoutine);
return 0;
}
/***********************************************************************
* WPUCompleteOverlappedRequest (WS2_32.25)
*/
WSAEVENT WINAPI WPUCompleteOverlappedRequest(SOCKET s, LPWSAOVERLAPPED overlapped,
DWORD error, DWORD transferred, LPINT errcode)
{
FIXME("(0x%08lx,%p,0x%08x,0x%08x,%p), stub !\n", s, overlapped, error, transferred, errcode);
if (errcode)
*errcode = WSAEINVAL;
return NULL;
}
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