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ntdll: Added a few helper function to simplify the loadorder code. 

Keep the application key open, it's valid for the lifetime of the
process.
This commit is contained in:
Alexandre Julliard 2006-02-04 17:06:41 +01:00
parent c919112a74
commit 2bddb3047b
1 changed files with 95 additions and 141 deletions
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236
dlls/ntdll/loadorder.c
View File

@ -364,24 +364,62 @@ static inline BOOL get_default_load_order( const WCHAR *module, enum loadorder_t
return FALSE;
lo[0] = LOADORDER_BI;
lo[1] = LOADORDER_INVALID;
TRACE( "got compiled-in default %s for %s\n", debugstr_loadorder(lo), debugstr_w(module) );
return TRUE;
}
/***************************************************************************
* open_app_key
* get_standard_key
*
* Open the registry key to the app-specific DllOverrides list.
* Return a handle to the standard DllOverrides registry section.
*/
static HANDLE open_app_key( const WCHAR *app_name, const WCHAR *module )
static HANDLE get_standard_key(void)
{
static const WCHAR DllOverridesW[] = {'S','o','f','t','w','a','r','e','\\','W','i','n','e','\\',
'D','l','l','O','v','e','r','r','i','d','e','s',0};
static HANDLE std_key = (HANDLE)-1;
if (std_key == (HANDLE)-1)
{
OBJECT_ATTRIBUTES attr;
UNICODE_STRING nameW;
HANDLE root;
RtlOpenCurrentUser( KEY_ALL_ACCESS, &root );
attr.Length = sizeof(attr);
attr.RootDirectory = root;
attr.ObjectName = &nameW;
attr.Attributes = 0;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
RtlInitUnicodeString( &nameW, DllOverridesW );
/* @@ Wine registry key: HKCU\Software\Wine\DllOverrides */
if (NtOpenKey( &std_key, KEY_ALL_ACCESS, &attr )) std_key = 0;
NtClose( root );
}
return std_key;
}
/***************************************************************************
* get_app_key
*
* Get the registry key for the app-specific DllOverrides list.
*/
static HANDLE get_app_key( const WCHAR *app_name )
{
OBJECT_ATTRIBUTES attr;
UNICODE_STRING nameW;
HANDLE root, hkey;
HANDLE root;
WCHAR *str;
static const WCHAR AppDefaultsW[] = {'S','o','f','t','w','a','r','e','\\','W','i','n','e','\\',
'A','p','p','D','e','f','a','u','l','t','s','\\',0};
static const WCHAR DllOverridesW[] = {'\\','D','l','l','O','v','e','r','r','i','d','e','s',0};
static HANDLE app_key = (HANDLE)-1;
if (app_key != (HANDLE)-1) return app_key;
str = RtlAllocateHeap( GetProcessHeap(), 0,
sizeof(AppDefaultsW) + sizeof(DllOverridesW) +
@ -391,8 +429,6 @@ static HANDLE open_app_key( const WCHAR *app_name, const WCHAR *module )
strcatW( str, app_name );
strcatW( str, DllOverridesW );
TRACE( "searching %s in %s\n", debugstr_w(module), debugstr_w(str) );
RtlOpenCurrentUser( KEY_ALL_ACCESS, &root );
attr.Length = sizeof(attr);
attr.RootDirectory = root;
@ -403,10 +439,10 @@ static HANDLE open_app_key( const WCHAR *app_name, const WCHAR *module )
RtlInitUnicodeString( &nameW, str );
/* @@ Wine registry key: HKCU\Software\Wine\AppDefaults\app.exe\DllOverrides */
if (NtOpenKey( &hkey, KEY_ALL_ACCESS, &attr )) hkey = 0;
if (NtOpenKey( &app_key, KEY_ALL_ACCESS, &attr )) app_key = 0;
NtClose( root );
RtlFreeHeap( GetProcessHeap(), 0, str );
return hkey;
return app_key;
}
@ -460,6 +496,41 @@ static BOOL get_registry_value( HANDLE hkey, const WCHAR *module, enum loadorder
}
/***************************************************************************
* get_load_order_value
*
* Get the load order for the exact specified module string, looking in:
* 1. The WINEDLLOVERRIDES environment variable
* 2. The per-application DllOverrides key
* 3. The standard DllOverrides key
*/
static BOOL get_load_order_value( HANDLE std_key, HANDLE app_key, const WCHAR *module,
enum loadorder_type loadorder[] )
{
if (get_env_load_order( module, loadorder ))
{
TRACE( "got environment %s for %s\n",
debugstr_loadorder(loadorder), debugstr_w(module) );
return TRUE;
}
if (app_key && get_registry_value( app_key, module, loadorder ))
{
TRACE( "got app defaults %s for %s\n",
debugstr_loadorder(loadorder), debugstr_w(module) );
return TRUE;
}
if (std_key && get_registry_value( std_key, module, loadorder ))
{
TRACE( "got standard key %s for %s\n",
debugstr_loadorder(loadorder), debugstr_w(module) );
return TRUE;
}
return FALSE;
}
/***************************************************************************
* MODULE_GetLoadOrderW (internal)
*
@ -469,17 +540,16 @@ static BOOL get_registry_value( HANDLE hkey, const WCHAR *module, enum loadorder
void MODULE_GetLoadOrderW( enum loadorder_type loadorder[], const WCHAR *app_name,
const WCHAR *path )
{
static const WCHAR DllOverridesW[] = {'S','o','f','t','w','a','r','e','\\','W','i','n','e','\\',
'D','l','l','O','v','e','r','r','i','d','e','s',0};
static const WCHAR wildcardW[] = {'*',0};
static HANDLE std_key = (HANDLE)-1; /* key to standard section, cached */
HANDLE app_key = 0;
HANDLE std_key, app_key = 0;
WCHAR *module, *basename;
UNICODE_STRING path_str;
int len;
if (!init_done) init_load_order();
std_key = get_standard_key();
if (app_name) app_key = get_app_key( app_name );
TRACE("looking for %s\n", debugstr_w(path));
@ -498,145 +568,30 @@ void MODULE_GetLoadOrderW( enum loadorder_type loadorder[], const WCHAR *app_nam
if (!(len = strlenW(path))) return;
if (!(module = RtlAllocateHeap( GetProcessHeap(), 0, (len + 2) * sizeof(WCHAR) ))) return;
strcpyW( module+1, path ); /* reserve module[0] for the wildcard char */
basename = (WCHAR *)get_basename( module+1 );
if (len >= 4) remove_dll_ext( module + 1 + len - 4 );
/* check environment variable first */
if (get_env_load_order( module+1, loadorder ))
{
TRACE( "got environment %s for %s\n",
debugstr_loadorder(loadorder), debugstr_w(path) );
/* first explicit module name */
if (get_load_order_value( std_key, app_key, module+1, loadorder ))
goto done;
}
/* then explicit module name in AppDefaults */
if (app_name)
{
app_key = open_app_key( app_name, module+1 );
if (app_key && get_registry_value( app_key, module+1, loadorder ))
{
TRACE( "got app defaults %s for %s\n",
debugstr_loadorder(loadorder), debugstr_w(path) );
goto done;
}
}
/* then explicit module name in standard section */
if (std_key == (HANDLE)-1)
{
OBJECT_ATTRIBUTES attr;
UNICODE_STRING nameW;
HANDLE root;
RtlOpenCurrentUser( KEY_ALL_ACCESS, &root );
attr.Length = sizeof(attr);
attr.RootDirectory = root;
attr.ObjectName = &nameW;
attr.Attributes = 0;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
RtlInitUnicodeString( &nameW, DllOverridesW );
/* @@ Wine registry key: HKCU\Software\Wine\DllOverrides */
if (NtOpenKey( &std_key, KEY_ALL_ACCESS, &attr )) std_key = 0;
NtClose( root );
}
if (std_key && get_registry_value( std_key, module+1, loadorder ))
{
TRACE( "got standard entry %s for %s\n",
debugstr_loadorder(loadorder), debugstr_w(path) );
goto done;
}
/* then module basename preceded by '*' in environment */
basename = (WCHAR *)get_basename( module+1 );
/* then module basename preceded by '*' */
basename[-1] = '*';
if (get_env_load_order( basename-1, loadorder ))
{
TRACE( "got environment basename %s for %s\n",
debugstr_loadorder(loadorder), debugstr_w(path) );
if (get_load_order_value( std_key, app_key, basename-1, loadorder ))
goto done;
}
/* then module basename preceded by '*' in AppDefaults */
if (app_key && get_registry_value( app_key, basename-1, loadorder ))
{
TRACE( "got app defaults basename %s for %s\n",
debugstr_loadorder(loadorder), debugstr_w(path) );
/* then module basename without '*' (only if explicit path) */
if (basename != module+1 && get_load_order_value( std_key, app_key, basename, loadorder ))
goto done;
}
/* then module name preceded by '*' in standard section */
if (std_key && get_registry_value( std_key, basename-1, loadorder ))
{
TRACE( "got standard base name %s for %s\n",
debugstr_loadorder(loadorder), debugstr_w(path) );
/* then compiled-in defaults */
if (get_default_load_order( basename, loadorder ))
goto done;
}
if (basename == module+1) /* module doesn't contain a path */
{
static const WCHAR wildcardW[] = {'*',0};
/* then base name matching compiled-in defaults */
if (get_default_load_order( basename, loadorder ))
{
TRACE( "got compiled-in default %s for %s\n",
debugstr_loadorder(loadorder), debugstr_w(path) );
goto done;
}
/* then wildcard entry in AppDefaults (only if no explicit path) */
if (app_key && get_registry_value( app_key, wildcardW, loadorder ))
{
TRACE( "got app defaults wildcard %s for %s\n",
debugstr_loadorder(loadorder), debugstr_w(path) );
goto done;
}
/* then wildcard entry in standard section (only if no explicit path) */
if (std_key && get_registry_value( std_key, wildcardW, loadorder ))
{
TRACE( "got standard wildcard %s for %s\n",
debugstr_loadorder(loadorder), debugstr_w(path) );
goto done;
}
}
else /* module contains an explicit path */
{
/* then base name without '*' in environment */
if (get_env_load_order( basename, loadorder ))
{
TRACE( "got environment basename %s for %s\n",
debugstr_loadorder(loadorder), debugstr_w(path) );
goto done;
}
/* then base name without '*' in AppDefaults */
if (app_key && get_registry_value( app_key, basename, loadorder ))
{
TRACE( "got basename app defaults %s for %s\n",
debugstr_loadorder(loadorder), debugstr_w(path) );
goto done;
}
/* then base name without '*' in standard section */
if (std_key && get_registry_value( std_key, basename, loadorder ))
{
TRACE( "got basename standard entry %s for %s\n",
debugstr_loadorder(loadorder), debugstr_w(path) );
goto done;
}
/* then base name matching compiled-in defaults */
if (get_default_load_order( basename, loadorder ))
{
TRACE( "got compiled-in default %s for %s\n",
debugstr_loadorder(loadorder), debugstr_w(path) );
goto done;
}
}
/* then wildcard entry (only if no explicit path) */
if (basename == module+1 && get_load_order_value( std_key, app_key, wildcardW, loadorder ))
goto done;
/* and last the hard-coded default */
memcpy( loadorder, default_loadorder, sizeof(default_loadorder) );
@ -644,6 +599,5 @@ void MODULE_GetLoadOrderW( enum loadorder_type loadorder[], const WCHAR *app_nam
debugstr_loadorder(loadorder), debugstr_w(path) );
done:
if (app_key) NtClose( app_key );
RtlFreeHeap( GetProcessHeap(), 0, module );
}