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winedevice: Fix problems with driver entries without the "ImagePath" entry in registry.

This commit is contained in:
Peter Dons Tychsen 2008-09-17 00:33:26 +02:00 committed by Alexandre Julliard
parent 741dd708c4
commit bc7b194bf9
1 changed files with 25 additions and 9 deletions
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20
programs/winedevice/device.c
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@ -147,6 +147,8 @@ static NTSTATUS init_driver( HMODULE module, UNICODE_STRING *keyname )
/* load the .sys module for a device driver */
static BOOL load_driver(void)
{
static const WCHAR driversW[] = {'\\','d','r','i','v','e','r','s','\\',0};
static const WCHAR postfixW[] = {'.','s','y','s',0};
static const WCHAR ntprefixW[] = {'\\','?','?','\\',0};
static const WCHAR ImagePathW[] = {'I','m','a','g','e','P','a','t','h',0};
static const WCHAR servicesW[] = {'\\','R','e','g','i','s','t','r','y',
@ -174,8 +176,8 @@ static BOOL load_driver(void)
/* read the executable path from memory */
size = 0;
if (RegQueryValueExW( driver_hkey, ImagePathW, NULL, &type, NULL, &size )) return FALSE;
if (!RegQueryValueExW( driver_hkey, ImagePathW, NULL, &type, NULL, &size ))
{
str = HeapAlloc( GetProcessHeap(), 0, size );
if (!RegQueryValueExW( driver_hkey, ImagePathW, NULL, &type, (LPBYTE)str, &size ))
{
@ -185,6 +187,20 @@ static BOOL load_driver(void)
}
HeapFree( GetProcessHeap(), 0, str );
if (!path) return FALSE;
}
else
{
/* default is to use the driver name + ".sys" */
WCHAR buffer[MAX_PATH];
GetSystemDirectoryW(buffer, MAX_PATH);
path = HeapAlloc(GetProcessHeap(),0,
(strlenW(buffer) + strlenW(driversW) + strlenW(driver_name) + strlenW(postfixW) + 1)
*sizeof(WCHAR));
lstrcpyW(path, buffer);
lstrcatW(path, driversW);
lstrcatW(path, driver_name);
lstrcatW(path, postfixW);
}
/* GameGuard uses an NT-style path name */
str = path;