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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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34
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 */ /* load the .sys module for a device driver */
static BOOL load_driver(void) 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 ntprefixW[] = {'\\','?','?','\\',0};
static const WCHAR ImagePathW[] = {'I','m','a','g','e','P','a','t','h',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', static const WCHAR servicesW[] = {'\\','R','e','g','i','s','t','r','y',
@ -174,17 +176,31 @@ static BOOL load_driver(void)
/* read the executable path from memory */ /* read the executable path from memory */
size = 0; 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 ))
{ {
size = ExpandEnvironmentStringsW(str,NULL,0); str = HeapAlloc( GetProcessHeap(), 0, size );
path = HeapAlloc(GetProcessHeap(),0,size*sizeof(WCHAR)); if (!RegQueryValueExW( driver_hkey, ImagePathW, NULL, &type, (LPBYTE)str, &size ))
ExpandEnvironmentStringsW(str,path,size); {
size = ExpandEnvironmentStringsW(str,NULL,0);
path = HeapAlloc(GetProcessHeap(),0,size*sizeof(WCHAR));
ExpandEnvironmentStringsW(str,path,size);
}
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);
} }
HeapFree( GetProcessHeap(), 0, str );
if (!path) return FALSE;
/* GameGuard uses an NT-style path name */ /* GameGuard uses an NT-style path name */
str = path; str = path;