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kernel32: Use NT instead of Unix calls to identify VxD pseudo-files.

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This commit is contained in:
Alexandre Julliard 2006-10-31 20:23:56 +01:00
parent 4934b7ae79
commit 7472ffd8d2
1 changed files with 14 additions and 25 deletions
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39
dlls/kernel32/vxd.c
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@ -52,11 +52,10 @@ typedef DWORD (WINAPI *VxDCallProc)(DWORD, CONTEXT86 *);
struct vxd_module
{
dev_t dev;
ino_t ino;
HANDLE handle;
HMODULE module;
DeviceIoProc proc;
LARGE_INTEGER index;
HANDLE handle;
HMODULE module;
DeviceIoProc proc;
};
struct vxdcall_service
@ -134,30 +133,24 @@ static HANDLE open_vxd_handle( LPCWSTR name )
/* retrieve the DeviceIoControl function for a Vxd given a file handle */
static DeviceIoProc get_vxd_proc( HANDLE handle )
{
struct stat st;
DeviceIoProc ret = NULL;
int status, i, fd;
int status, i;
IO_STATUS_BLOCK io;
FILE_INTERNAL_INFORMATION info;
status = wine_server_handle_to_fd( handle, 0, &fd, NULL );
status = NtQueryInformationFile( handle, &io, &info, sizeof(info), FileInternalInformation );
if (status)
{
SetLastError( RtlNtStatusToDosError(status) );
return NULL;
}
if (fstat( fd, &st ) == -1)
{
wine_server_release_fd( handle, fd );
SetLastError( ERROR_INVALID_HANDLE );
return NULL;
}
wine_server_release_fd( handle, fd );
RtlEnterCriticalSection( &vxd_section );
for (i = 0; i < MAX_VXD_MODULES; i++)
{
if (!vxd_modules[i].module) break;
if (vxd_modules[i].dev == st.st_dev && vxd_modules[i].ino == st.st_ino)
if (vxd_modules[i].index.QuadPart == info.IndexNumber.QuadPart)
{
if (!(ret = vxd_modules[i].proc)) SetLastError( ERROR_INVALID_FUNCTION );
goto done;
@ -230,8 +223,8 @@ HANDLE VXD_Open( LPCWSTR filenameW, DWORD access, SECURITY_ATTRIBUTES *sa )
}
if (!vxd_modules[i].module) /* new one, register it */
{
struct stat st;
int fd;
IO_STATUS_BLOCK io;
FILE_INTERNAL_INFORMATION info;
/* get a file handle to the dummy file */
if (!(handle = open_vxd_handle( name )))
@ -239,16 +232,12 @@ HANDLE VXD_Open( LPCWSTR filenameW, DWORD access, SECURITY_ATTRIBUTES *sa )
FreeLibrary( module );
goto done;
}
wine_server_handle_to_fd( handle, 0, &fd, NULL );
if (fstat( fd, &st ) != -1)
{
vxd_modules[i].dev = st.st_dev;
vxd_modules[i].ino = st.st_ino;
}
if (!NtQueryInformationFile( handle, &io, &info, sizeof(info), FileInternalInformation ))
vxd_modules[i].index = info.IndexNumber;
vxd_modules[i].module = module;
vxd_modules[i].handle = handle;
vxd_modules[i].proc = (DeviceIoProc)GetProcAddress( module, "DeviceIoControl" );
wine_server_release_fd( handle, fd );
goto done;
}
}