/*
This file is part of GNUnet.
Copyright (C) 2012 GNUnet e.V.
GNUnet is free software: you can redistribute it and/or modify it
under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License,
or (at your option) any later version.
GNUnet 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
Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see .
SPDX-License-Identifier: AGPL3.0-or-later
*/
/**
* @file gns/w32nsp.c
* @brief W32 integration for GNS
* @author LRN
*/
/* This code is partially based upon samples from the book
* "Network Programming For Microsoft Windows, 2Nd Edition".
*/
#define VERBOSE 0
#if !VERBOSE
# define DEBUGLOG(s, ...)
#endif
#if VERBOSE
# define __printf__ printf
# define DEBUGLOG(s, ...) printf (s, ##__VA_ARGS__)
#endif
#include
#include
#include
#include
#include
#define WINDOWS 1
#define MINGW 1
#ifndef __BYTE_ORDER
#ifdef _BYTE_ORDER
#define __BYTE_ORDER _BYTE_ORDER
#else
#ifdef BYTE_ORDER
#define __BYTE_ORDER BYTE_ORDER
#endif
#endif
#endif
#ifndef __BIG_ENDIAN
#ifdef _BIG_ENDIAN
#define __BIG_ENDIAN _BIG_ENDIAN
#else
#ifdef BIG_ENDIAN
#define __BIG_ENDIAN BIG_ENDIAN
#endif
#endif
#endif
#ifndef __LITTLE_ENDIAN
#ifdef _LITTLE_ENDIAN
#define __LITTLE_ENDIAN _LITTLE_ENDIAN
#else
#ifdef LITTLE_ENDIAN
#define __LITTLE_ENDIAN LITTLE_ENDIAN
#endif
#endif
#endif
#include "w32resolver.h"
#include
#include "gnunet_w32nsp_lib.h"
#undef INITGUID
#define NSPAPI_VERSION_MAJOR 4
#define NSPAPI_VERSION_MINOR 4
static CRITICAL_SECTION records_cs;
struct record
{
SOCKET s;
DWORD flags;
uint8_t state;
char *buf;
wchar_t *name;
};
static struct record *records = NULL;
static size_t records_len = 0;
static size_t records_size = 0;
static int
resize_records ()
{
size_t new_size = records_len > 0 ? records_len * 2 : 5;
struct record *new_records = malloc (new_size * sizeof (struct record));
if (new_records == NULL)
{
SetLastError (WSA_NOT_ENOUGH_MEMORY);
return 0;
}
GNUNET_memcpy (new_records, records, records_len * sizeof (struct record));
memset (&new_records[records_len], 0, sizeof (struct record) * (new_size - records_len));
records_size = new_size;
free (records);
records = new_records;
return 1;
}
static int
add_record (SOCKET s, const wchar_t *name, DWORD flags)
{
int res = 1;
int i;
int empty = -1;
//EnterCriticalSection (&records_cs);
for (i = 0; i < records_len; i++)
if (records[i].state == 0)
break;
empty = i;
if (i == records_len)
{
res = resize_records ();
if (res)
empty = records_len++;
}
if (res)
{
struct record r;
r.s = s;
r.flags = flags;
r.name = (wchar_t *) name;
r.state = 1;
r.buf = NULL;
if (name)
r.name = wcsdup (name);
records[empty] = r;
}
//LeaveCriticalSection (&records_cs);
return res;
}
/* These are not defined by mingw.org headers at the moment*/
typedef INT (WSPAPI *LPNSPIOCTL) (HANDLE,DWORD,LPVOID,DWORD,LPVOID,DWORD,LPDWORD,LPWSACOMPLETION,LPWSATHREADID);
typedef struct _NSP_ROUTINE_XP {
DWORD cbSize;
DWORD dwMajorVersion;
DWORD dwMinorVersion;
LPNSPCLEANUP NSPCleanup;
LPNSPLOOKUPSERVICEBEGIN NSPLookupServiceBegin;
LPNSPLOOKUPSERVICENEXT NSPLookupServiceNext;
LPNSPLOOKUPSERVICEEND NSPLookupServiceEnd;
LPNSPSETSERVICE NSPSetService;
LPNSPINSTALLSERVICECLASS NSPInstallServiceClass;
LPNSPREMOVESERVICECLASS NSPRemoveServiceClass;
LPNSPGETSERVICECLASSINFO NSPGetServiceClassInfo;
LPNSPIOCTL NSPIoctl;
} NSP_ROUTINE_XP;
static SOCKET
connect_to_dns_resolver ()
{
struct sockaddr_in addr;
SOCKET r;
int ret;
r = socket (AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (INVALID_SOCKET == r)
{
SetLastError (16004);
return r;
}
addr.sin_family = AF_INET;
addr.sin_port = htons (5353); /* TCP 5353 is not registered; UDP 5353 is */
addr.sin_addr.s_addr = inet_addr ("127.0.0.1");
ret = connect (r, (struct sockaddr *) &addr, sizeof (addr));
if (SOCKET_ERROR == ret)
{
DWORD err = GetLastError ();
closesocket (r);
SetLastError (err);
SetLastError (16005);
r = INVALID_SOCKET;
}
return r;
}
static int
send_name_to_ip_request (LPWSAQUERYSETW lpqsRestrictions,
LPWSASERVICECLASSINFOW lpServiceClassInfo, DWORD dwControlFlags,
SOCKET *resolver)
{
struct GNUNET_W32RESOLVER_GetMessage *msg;
int af4 = 0;
int af6 = 0;
char *buf;
int ret = 1;
int i;
size_t size = sizeof (struct GNUNET_W32RESOLVER_GetMessage);
size_t namelen = 0;
if (lpqsRestrictions->lpszServiceInstanceName)
namelen = sizeof (wchar_t) * (wcslen (lpqsRestrictions->lpszServiceInstanceName) + 1);
size += namelen;
buf = malloc (size);
msg = (struct GNUNET_W32RESOLVER_GetMessage *) buf;
msg->header.size = htons (size);
msg->header.type = htons (GNUNET_MESSAGE_TYPE_W32RESOLVER_REQUEST);
if (lpqsRestrictions->dwNumberOfProtocols > 0)
{
int i;
for (i = 0; i < lpqsRestrictions->dwNumberOfProtocols; i++)
{
if (lpqsRestrictions->lpafpProtocols[0].iAddressFamily == AF_INET)
af4 = 1;
if (lpqsRestrictions->lpafpProtocols[0].iAddressFamily == AF_INET6)
af6 = 1;
}
}
if (af4 && !af6)
msg->af = htonl (AF_INET);
else if (af6 && !af4)
msg->af = htonl (AF_INET6);
else
msg->af = htonl (AF_UNSPEC);
if (lpqsRestrictions->lpszServiceInstanceName)
GNUNET_memcpy (&msg[1], lpqsRestrictions->lpszServiceInstanceName, namelen);
msg->sc_data1 = htonl (lpqsRestrictions->lpServiceClassId->Data1);
msg->sc_data2 = htons (lpqsRestrictions->lpServiceClassId->Data2);
msg->sc_data3 = htons (lpqsRestrictions->lpServiceClassId->Data3);
for (i = 0; i < 8; i++)
msg->sc_data4[i] = lpqsRestrictions->lpServiceClassId->Data4[i];
*resolver = connect_to_dns_resolver ();
if (*resolver != INVALID_SOCKET)
{
if (size != send (*resolver, buf, size, 0))
{
#if VERBOSE
DWORD err = GetLastError ();
#endif
closesocket (*resolver);
*resolver = INVALID_SOCKET;
DEBUGLOG ("GNUNET_W32NSP_LookupServiceBegin: failed to send request: %lu\n", err);
SetLastError (WSATRY_AGAIN);
ret = 0;
}
}
else
ret = 0;
free (buf);
return ret;
}
static int WSPAPI
NSPCleanup (LPGUID lpProviderId)
{
DEBUGLOG ("NSPCleanup\n");
if (IsEqualGUID (lpProviderId, &GNUNET_NAMESPACE_PROVIDER_DNS))
{
return NO_ERROR;
}
SetLastError (WSAEINVALIDPROVIDER);
return SOCKET_ERROR;
}
BOOL WINAPI
DllMain (HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
{
switch (fdwReason)
{
case DLL_PROCESS_ATTACH:
if (!InitializeCriticalSectionAndSpinCount (&records_cs, 0x00000400))
{
return FALSE;
}
break;
case DLL_THREAD_ATTACH:
break;
case DLL_THREAD_DETACH:
break;
case DLL_PROCESS_DETACH:
DeleteCriticalSection (&records_cs);
break;
}
return TRUE;
}
static int WSPAPI
GNUNET_W32NSP_LookupServiceBegin (LPGUID lpProviderId, LPWSAQUERYSETW lpqsRestrictions,
LPWSASERVICECLASSINFOW lpServiceClassInfo, DWORD dwControlFlags,
LPHANDLE lphLookup)
{
DEBUGLOG ("GNUNET_W32NSP_LookupServiceBegin\n");
if (IsEqualGUID (lpProviderId, &GNUNET_NAMESPACE_PROVIDER_DNS))
{
SOCKET s;
if (lpqsRestrictions->dwNameSpace != NS_DNS && lpqsRestrictions->dwNameSpace != NS_ALL)
{
DEBUGLOG ("GNUNET_W32NSP_LookupServiceBegin: wrong namespace\n");
SetLastError (WSAEINVAL);
return SOCKET_ERROR;
}
if (lpqsRestrictions->lpszServiceInstanceName != NULL)
{
wchar_t *s = lpqsRestrictions->lpszServiceInstanceName;
size_t len = wcslen (s);
if (len >= 5 && wcscmp (&s[len - 5], L".zkey") == 0)
{
}
else if (len >= 4 && wcscmp (&s[len - 4], L".gnu") == 0)
{
}
else
{
DEBUGLOG ("GNUNET_W32NSP_LookupServiceBegin: unsupported TLD\n");
SetLastError (WSAEINVAL);
return SOCKET_ERROR;
}
}
if (send_name_to_ip_request (lpqsRestrictions,
lpServiceClassInfo, dwControlFlags, &s))
{
if (!(add_record (s, lpqsRestrictions->lpszServiceInstanceName, dwControlFlags)))
{
DWORD err = GetLastError ();
DEBUGLOG ("GNUNET_W32NSP_LookupServiceBegin: failed to add a record\n");
closesocket (s);
SetLastError (err);
return SOCKET_ERROR;
}
*lphLookup = (HANDLE) s;
DEBUGLOG ("GNUNET_W32NSP_LookupServiceBegin: OK (%lu)\n", GetLastError ());
return NO_ERROR;
}
return SOCKET_ERROR;
}
DEBUGLOG ("GNUNET_W32NSP_LookupServiceBegin: wrong provider\n");
SetLastError (WSAEINVALIDPROVIDER);
return SOCKET_ERROR;
}
#define UnmarshallPtr(ptr, ptrtype, base) \
if (ptr) \
ptr = (ptrtype *) (base + (uintptr_t) ptr)
static void
UnmarshallWSAQUERYSETW (LPWSAQUERYSETW req)
{
int i;
char *base = (char *) req;
UnmarshallPtr (req->lpszServiceInstanceName, wchar_t, base);
UnmarshallPtr (req->lpServiceClassId, GUID, base);
UnmarshallPtr (req->lpVersion, WSAVERSION, base);
UnmarshallPtr (req->lpszComment, wchar_t, base);
UnmarshallPtr (req->lpNSProviderId, GUID, base);
UnmarshallPtr (req->lpszContext, wchar_t, base);
UnmarshallPtr (req->lpafpProtocols, AFPROTOCOLS, base);
UnmarshallPtr (req->lpszQueryString, wchar_t, base);
UnmarshallPtr (req->lpcsaBuffer, CSADDR_INFO, base);
for (i = 0; i < req->dwNumberOfCsAddrs; i++)
{
UnmarshallPtr (req->lpcsaBuffer[i].LocalAddr.lpSockaddr, SOCKADDR, base);
UnmarshallPtr (req->lpcsaBuffer[i].RemoteAddr.lpSockaddr, SOCKADDR, base);
}
UnmarshallPtr (req->lpBlob, BLOB, base);
if (req->lpBlob)
UnmarshallPtr (req->lpBlob->pBlobData, BYTE, base);
}
static int WSAAPI
GNUNET_W32NSP_LookupServiceNext (HANDLE hLookup, DWORD dwControlFlags,
LPDWORD lpdwBufferLength, LPWSAQUERYSETW lpqsResults)
{
/*DWORD effective_flags;*/
int i;
struct GNUNET_MessageHeader header = {0, 0};
int rec = -1;
int rc;
int to_receive;
int t;
char *buf;
DEBUGLOG ("GNUNET_W32NSP_LookupServiceNext\n");
//EnterCriticalSection (&records_cs);
for (i = 0; i < records_len; i++)
{
if (records[i].s == (SOCKET) hLookup)
{
rec = i;
break;
}
}
if (rec == -1)
{
DEBUGLOG ("GNUNET_W32NSP_LookupServiceNext: invalid handle\n");
SetLastError (WSA_INVALID_HANDLE);
//LeaveCriticalSection (&records_cs);
return SOCKET_ERROR;
}
if (records[rec].state & 4)
{
DEBUGLOG ("GNUNET_W32NSP_LookupServiceNext: session is closed\n");
SetLastError (WSA_E_NO_MORE);
//LeaveCriticalSection (&records_cs);
return SOCKET_ERROR;
}
/*effective_flags = dwControlFlags & records[rec].flags;*/
if (records[rec].buf)
{
DEBUGLOG ("GNUNET_W32NSP_LookupServiceNext: checking buffer\n");
header = *((struct GNUNET_MessageHeader *) records[rec].buf);
if (*lpdwBufferLength < header.size - sizeof (struct GNUNET_W32RESOLVER_GetMessage))
{
DEBUGLOG ("GNUNET_W32NSP_LookupServiceNext: client buffer is too small\n");
SetLastError (WSAEFAULT);
//LeaveCriticalSection (&records_cs);
return SOCKET_ERROR;
}
GNUNET_memcpy (lpqsResults, &((struct GNUNET_W32RESOLVER_GetMessage *)records[rec].buf)[1], header.size - sizeof (struct GNUNET_W32RESOLVER_GetMessage));
free (records[rec].buf);
records[rec].buf = NULL;
//LeaveCriticalSection (&records_cs);
UnmarshallWSAQUERYSETW ((LPWSAQUERYSETW) lpqsResults);
DEBUGLOG ("GNUNET_W32NSP_LookupServiceNext: OK (from buffer)\n");
return NO_ERROR;
}
records[rec].state |= 8;
//LeaveCriticalSection (&records_cs);
to_receive = sizeof (header);
rc = 0;
#if VERBOSE
{
unsigned long have;
int ior = ioctlsocket ((SOCKET) hLookup, FIONREAD, &have);
DEBUGLOG ("GNUNET_W32NSP_LookupServiceNext: reading %d bytes as a header from %p, %lu bytes available\n", to_receive, hLookup, have);
}
#endif
while (to_receive > 0)
{
t = recv ((SOCKET) hLookup, &((char *) &header)[rc], to_receive, 0);
if (t > 0)
{
rc += t;
to_receive -= t;
}
else
break;
}
#if VERBOSE
{
unsigned long have;
int ior = ioctlsocket ((SOCKET) hLookup, FIONREAD, &have);
DEBUGLOG ("GNUNET_W32NSP_LookupServiceNext: read %d bytes as a header from %p, %lu bytes available\n", rc, hLookup, have);
}
#endif
//EnterCriticalSection (&records_cs);
records[rec].state &= ~8;
if (rc != sizeof (header))
{
if (records[rec].state & 2)
{
DEBUGLOG ("GNUNET_W32NSP_LookupServiceNext: call cancelled\n");
SetLastError (WSA_E_CANCELLED);
}
else
{
DEBUGLOG ("GNUNET_W32NSP_LookupServiceNext: failed to receive enough data for a header (rc %d != %u, state is 0x%0X)\n", rc, sizeof (header), records[rec].state);
SetLastError (WSA_E_NO_MORE);
}
records[rec].state |= 4;
//LeaveCriticalSection (&records_cs);
return SOCKET_ERROR;
}
records[rec].state &= ~8;
header.type = ntohs (header.type);
header.size = ntohs (header.size);
DEBUGLOG ("GNUNET_W32NSP_LookupServiceNext: header type %d, header size %u\n", header.type, header.size);
if (header.type != GNUNET_MESSAGE_TYPE_W32RESOLVER_RESPONSE ||
(header.type == GNUNET_MESSAGE_TYPE_W32RESOLVER_RESPONSE &&
header.size == sizeof (header)))
{
records[rec].state |= 4;
if (header.type != GNUNET_MESSAGE_TYPE_W32RESOLVER_RESPONSE)
DEBUGLOG ("GNUNET_W32NSP_LookupServiceNext: header type is wrong\n");
else
DEBUGLOG ("GNUNET_W32NSP_LookupServiceNext: empty header - no data\n");
//LeaveCriticalSection (&records_cs);
SetLastError (WSA_E_NO_MORE);
return SOCKET_ERROR;
}
buf = malloc (header.size);
if (buf == NULL)
{
records[rec].state |= 4;
DEBUGLOG ("GNUNET_W32NSP_LookupServiceNext: malloc() failed\n");
//LeaveCriticalSection (&records_cs);
SetLastError (WSA_E_NO_MORE);
return SOCKET_ERROR;
}
records[rec].state |= 8;
//LeaveCriticalSection (&records_cs);
GNUNET_memcpy (buf, &header, sizeof (header));
to_receive = header.size - sizeof (header);
rc = 0;
#if VERBOSE
{
unsigned long have;
int ior = ioctlsocket ((SOCKET) hLookup, FIONREAD, &have);
DEBUGLOG ("GNUNET_W32NSP_LookupServiceNext: reading %d bytes as a body from %p, %lu bytes available\n", to_receive, hLookup, have);
}
#endif
while (to_receive > 0)
{
DEBUGLOG ("GNUNET_W32NSP_LookupServiceNext: recv (%d)\n", to_receive);
t = recv ((SOCKET) hLookup, &((char *) &((struct GNUNET_MessageHeader *) buf)[1])[rc], to_receive, 0);
DEBUGLOG ("GNUNET_W32NSP_LookupServiceNext: recv returned %d\n", t);
if (t > 0)
{
rc += t;
to_receive -= t;
}
else
break;
}
#if VERBOSE
{
unsigned long have;
int ior = ioctlsocket ((SOCKET) hLookup, FIONREAD, &have);
DEBUGLOG ("GNUNET_W32NSP_LookupServiceNext: read %d bytes as a body from %p, %lu bytes available\n", rc, hLookup, have);
}
#endif
//EnterCriticalSection (&records_cs);
records[rec].state &= ~8;
if (rc != header.size - sizeof (header))
{
free (buf);
if (records[rec].state & 2)
{
DEBUGLOG ("GNUNET_W32NSP_LookupServiceNext: call cancelled\n");
SetLastError (WSA_E_CANCELLED);
}
else
{
DEBUGLOG ("GNUNET_W32NSP_LookupServiceNext: failed to receive enough data for the rest (rc %d != %d, state is 0x%0X)\n", rc, header.size - sizeof (header), records[rec].state);
SetLastError (WSA_E_NO_MORE);
}
records[rec].state |= 4;
//LeaveCriticalSection (&records_cs);
return SOCKET_ERROR;
}
if (*lpdwBufferLength < header.size - sizeof (struct GNUNET_W32RESOLVER_GetMessage))
{
DEBUGLOG ("GNUNET_W32NSP_LookupServiceNext: client buffer is too small\n");
SetLastError (WSAEFAULT);
records[rec].buf = buf;
//LeaveCriticalSection (&records_cs);
return SOCKET_ERROR;
}
//LeaveCriticalSection (&records_cs);
DEBUGLOG ("GNUNET_W32NSP_LookupServiceNext: writing %d bytes into result buffer\n", header.size - sizeof (struct GNUNET_W32RESOLVER_GetMessage));
GNUNET_memcpy (lpqsResults, &((struct GNUNET_W32RESOLVER_GetMessage *)buf)[1], header.size - sizeof (struct GNUNET_W32RESOLVER_GetMessage));
free (buf);
DEBUGLOG ("GNUNET_W32NSP_LookupServiceNext: OK\n");
UnmarshallWSAQUERYSETW ((LPWSAQUERYSETW) lpqsResults);
DEBUGLOG ("GNUNET_W32NSP_LookupServiceNext: returning (%lu)\n", GetLastError ());
return NO_ERROR;
}
static int WSPAPI
GNUNET_W32NSP_LookupServiceEnd (HANDLE hLookup)
{
int i;
int rec = -1;
DEBUGLOG ("GNUNET_W32NSP_LookupServiceEnd\n");
//EnterCriticalSection (&records_cs);
for (i = 0; i < records_len; i++)
{
if (records[i].s == (SOCKET) hLookup)
{
rec = i;
break;
}
}
if (rec == -1)
{
SetLastError (WSA_INVALID_HANDLE);
//LeaveCriticalSection (&records_cs);
DEBUGLOG ("GNUNET_W32NSP_LookupServiceEnd: invalid handle\n");
return SOCKET_ERROR;
}
records[rec].state |= 2;
closesocket (records[rec].s);
while (records[rec].state & 8)
{
//LeaveCriticalSection (&records_cs);
Sleep (10);
//EnterCriticalSection (&records_cs);
}
if (records[rec].buf)
free (records[rec].buf);
records[rec].buf = NULL;
records[rec].state = 0;
if (records[rec].name)
free (records[rec].name);
//LeaveCriticalSection (&records_cs);
DEBUGLOG ("GNUNET_W32NSP_LookupServiceEnd: OK\n");
return NO_ERROR;
}
static int WSAAPI
GNUNET_W32NSP_SetService (LPGUID lpProviderId,
LPWSASERVICECLASSINFOW lpServiceClassInfo, LPWSAQUERYSETW lpqsRegInfo,
WSAESETSERVICEOP essOperation, DWORD dwControlFlags)
{
DEBUGLOG ("GNUNET_W32NSP_SetService\n");
SetLastError (WSAEOPNOTSUPP);
return SOCKET_ERROR;
}
static int WSAAPI
GNUNET_W32NSP_InstallServiceClass (LPGUID lpProviderId,
LPWSASERVICECLASSINFOW lpServiceClassInfo)
{
DEBUGLOG ("GNUNET_W32NSP_InstallServiceClass\n");
SetLastError (WSAEOPNOTSUPP);
return SOCKET_ERROR;
}
static int WSAAPI
GNUNET_W32NSP_RemoveServiceClass (LPGUID lpProviderId, LPGUID lpServiceClassId)
{
DEBUGLOG ("GNUNET_W32NSP_RemoveServiceClass\n");
SetLastError (WSAEOPNOTSUPP);
return SOCKET_ERROR;
}
static int WSAAPI
GNUNET_W32NSP_GetServiceClassInfo (LPGUID lpProviderId, LPDWORD lpdwBufSize,
LPWSASERVICECLASSINFOW lpServiceClassInfo)
{
DEBUGLOG ("GNUNET_W32NSP_GetServiceClassInfo\n");
SetLastError (WSAEOPNOTSUPP);
return SOCKET_ERROR;
}
static int WSAAPI
GNUNET_W32NSP_Ioctl (HANDLE hLookup, DWORD dwControlCode, LPVOID lpvInBuffer,
DWORD cbInBuffer, LPVOID lpvOutBuffer, DWORD cbOutBuffer,
LPDWORD lpcbBytesReturned, LPWSACOMPLETION lpCompletion,
LPWSATHREADID lpThreadId)
{
DEBUGLOG ("GNUNET_W32NSP_Ioctl\n");
SetLastError (WSAEOPNOTSUPP);
return SOCKET_ERROR;
}
/**
* This function is called by Winsock to hook up our provider.
* It is the only function that [should be/is] exported by the
* provider. All other routines are passed as pointers in lpnspRoutines.
*/
int WSAAPI
GNUNET_W32NSP_NSPStartup (LPGUID lpProviderId, LPNSP_ROUTINE lpnspRoutines)
{
if (IsEqualGUID (lpProviderId, &GNUNET_NAMESPACE_PROVIDER_DNS))
{
if (!connect_to_dns_resolver ())
{
return SOCKET_ERROR;
}
/* This assumes that NSP_ROUTINE struct doesn't have a NSPIoctl member.
* If it does, you need to use FIELD_OFFSET() macro to get offset of NSPIoctl
* and use that offset as cbSize.
*/
lpnspRoutines->cbSize = sizeof(NSP_ROUTINE);
lpnspRoutines->dwMajorVersion = NSPAPI_VERSION_MAJOR;
lpnspRoutines->dwMinorVersion = NSPAPI_VERSION_MINOR;
lpnspRoutines->NSPCleanup = NSPCleanup;
lpnspRoutines->NSPLookupServiceBegin = GNUNET_W32NSP_LookupServiceBegin;
lpnspRoutines->NSPLookupServiceNext = GNUNET_W32NSP_LookupServiceNext;
lpnspRoutines->NSPLookupServiceEnd = GNUNET_W32NSP_LookupServiceEnd;
lpnspRoutines->NSPSetService = GNUNET_W32NSP_SetService;
lpnspRoutines->NSPInstallServiceClass = GNUNET_W32NSP_InstallServiceClass;
lpnspRoutines->NSPRemoveServiceClass = GNUNET_W32NSP_RemoveServiceClass;
lpnspRoutines->NSPGetServiceClassInfo = GNUNET_W32NSP_GetServiceClassInfo;
/*((NSP_ROUTINE_XP *) lpnspRoutines)->NSPIoctl = GNUNET_W32NSP_Ioctl;*/
lpnspRoutines->NSPIoctl = GNUNET_W32NSP_Ioctl;
return NO_ERROR;
}
SetLastError (WSAEINVALIDPROVIDER);
return SOCKET_ERROR;
}