mirror of
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30d06da60a
modules that contain a path, for better consistency with the registry entries.
650 lines
20 KiB
C
650 lines
20 KiB
C
/*
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* Dlls load order support
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*
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* Copyright 1999 Bertho Stultiens
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* Copyright 2003 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "config.h"
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#include "wine/port.h"
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#include <stdarg.h>
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#include "windef.h"
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#include "winternl.h"
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#include "ntdll_misc.h"
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#include "module.h"
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#include "wine/debug.h"
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#include "wine/unicode.h"
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WINE_DEFAULT_DEBUG_CHANNEL(module);
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#define LOADORDER_ALLOC_CLUSTER 32 /* Allocate with 32 entries at a time */
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typedef struct module_loadorder
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{
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const WCHAR *modulename;
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enum loadorder_type loadorder[LOADORDER_NTYPES];
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} module_loadorder_t;
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struct loadorder_list
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{
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int count;
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int alloc;
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module_loadorder_t *order;
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};
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/* dll to load as builtins if not explicitly specified otherwise */
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/* the list must remain sorted by dll name */
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static const WCHAR default_builtins[][10] =
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{
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{ 'g','d','i','3','2',0 },
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{ 'i','c','m','p',0 },
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{ 'k','e','r','n','e','l','3','2',0 },
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{ 'n','t','d','l','l',0 },
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{ 'o','d','b','c','3','2',0 },
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{ 't','t','y','d','r','v',0 },
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{ 'u','s','e','r','3','2',0 },
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{ 'w','3','2','s','k','r','n','l',0 },
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{ 'w','i','n','e','d','o','s',0 },
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{ 'w','i','n','e','p','s',0 },
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{ 'w','i','n','m','m',0 },
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{ 'w','n','a','s','p','i','3','2',0 },
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{ 'w','o','w','3','2',0 },
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{ 'w','s','2','_','3','2',0 },
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{ 'w','s','o','c','k','3','2',0 },
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{ 'x','1','1','d','r','v',0 }
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};
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/* default if nothing else specified */
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static const enum loadorder_type default_loadorder[LOADORDER_NTYPES] =
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{
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LOADORDER_BI, LOADORDER_DLL, 0
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};
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static const WCHAR separatorsW[] = {',',' ','\t',0};
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static int init_done;
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static struct loadorder_list env_list;
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/***************************************************************************
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* cmp_sort_func (internal, static)
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*
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* Sorting and comparing function used in sort and search of loadorder
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* entries.
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*/
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static int cmp_sort_func(const void *s1, const void *s2)
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{
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return strcmpiW(((const module_loadorder_t *)s1)->modulename, ((const module_loadorder_t *)s2)->modulename);
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}
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/***************************************************************************
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* strcmp_func
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*/
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static int strcmp_func(const void *s1, const void *s2)
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{
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return strcmpiW( (const WCHAR *)s1, (const WCHAR *)s2 );
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}
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/***************************************************************************
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* get_basename
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*
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* Return the base name of a file name (i.e. remove the path components).
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*/
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static const WCHAR *get_basename( const WCHAR *name )
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{
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const WCHAR *ptr;
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if (name[0] && name[1] == ':') name += 2; /* strip drive specification */
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if ((ptr = strrchrW( name, '\\' ))) name = ptr + 1;
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if ((ptr = strrchrW( name, '/' ))) name = ptr + 1;
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return name;
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}
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/***************************************************************************
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* remove_dll_ext
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*
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* Remove extension if it is ".dll".
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*/
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static inline void remove_dll_ext( WCHAR *ext )
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{
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if (ext[0] == '.' &&
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toupperW(ext[1]) == 'D' &&
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toupperW(ext[2]) == 'L' &&
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toupperW(ext[3]) == 'L' &&
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!ext[4]) ext[0] = 0;
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}
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/***************************************************************************
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* debugstr_loadorder
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*
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* Return a loadorder in printable form.
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*/
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static const char *debugstr_loadorder( enum loadorder_type lo[] )
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{
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int i;
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char buffer[LOADORDER_NTYPES*3+1];
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buffer[0] = 0;
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for(i = 0; i < LOADORDER_NTYPES; i++)
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{
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if (lo[i] == LOADORDER_INVALID) break;
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switch(lo[i])
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{
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case LOADORDER_DLL: strcat( buffer, "n," ); break;
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case LOADORDER_BI: strcat( buffer, "b," ); break;
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default: strcat( buffer, "?," ); break;
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}
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}
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if (buffer[0]) buffer[strlen(buffer)-1] = 0;
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return debugstr_a(buffer);
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}
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/***************************************************************************
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* append_load_order
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*
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* Append a load order to the list if necessary.
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*/
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static void append_load_order(enum loadorder_type lo[], enum loadorder_type append)
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{
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int i;
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for (i = 0; i < LOADORDER_NTYPES; i++)
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{
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if (lo[i] == LOADORDER_INVALID) /* append it here */
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{
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lo[i++] = append;
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lo[i] = LOADORDER_INVALID;
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return;
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}
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if (lo[i] == append) return; /* already in the list */
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}
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assert(0); /* cannot get here */
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}
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/***************************************************************************
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* parse_load_order
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*
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* Parses the loadorder options from the configuration and puts it into
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* a structure.
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*/
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static void parse_load_order( const WCHAR *order, enum loadorder_type lo[] )
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{
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lo[0] = LOADORDER_INVALID;
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while (*order)
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{
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order += strspnW( order, separatorsW );
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switch(*order)
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{
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case 'N': /* Native */
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case 'n':
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append_load_order( lo, LOADORDER_DLL );
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break;
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case 'B': /* Builtin */
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case 'b':
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append_load_order( lo, LOADORDER_BI );
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break;
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}
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order += strcspnW( order, separatorsW );
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}
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}
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/***************************************************************************
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* add_load_order
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*
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* Adds an entry in the list of environment overrides.
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*/
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static void add_load_order( const module_loadorder_t *plo )
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{
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int i;
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for(i = 0; i < env_list.count; i++)
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{
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if(!cmp_sort_func(plo, &env_list.order[i] ))
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{
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/* replace existing option */
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memcpy( env_list.order[i].loadorder, plo->loadorder, sizeof(plo->loadorder));
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return;
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}
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}
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if (i >= env_list.alloc)
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{
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/* No space in current array, make it larger */
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env_list.alloc += LOADORDER_ALLOC_CLUSTER;
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if (env_list.order)
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env_list.order = RtlReAllocateHeap(GetProcessHeap(), 0, env_list.order,
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env_list.alloc * sizeof(module_loadorder_t));
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else
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env_list.order = RtlAllocateHeap(GetProcessHeap(), 0,
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env_list.alloc * sizeof(module_loadorder_t));
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if(!env_list.order)
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{
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MESSAGE("Virtual memory exhausted\n");
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exit(1);
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}
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}
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memcpy(env_list.order[i].loadorder, plo->loadorder, sizeof(plo->loadorder));
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env_list.order[i].modulename = plo->modulename;
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env_list.count++;
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}
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/***************************************************************************
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* add_load_order_set
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*
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* Adds a set of entries in the list of command-line overrides from the key parameter.
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*/
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static void add_load_order_set( WCHAR *entry )
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{
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module_loadorder_t ldo;
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WCHAR *end = strchrW( entry, '=' );
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if (!end) return;
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*end++ = 0;
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parse_load_order( end, ldo.loadorder );
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while (*entry)
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{
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entry += strspnW( entry, separatorsW );
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end = entry + strcspnW( entry, separatorsW );
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if (*end) *end++ = 0;
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if (*entry)
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{
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WCHAR *ext = strrchrW(entry, '.');
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if (ext) remove_dll_ext( ext );
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ldo.modulename = entry;
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add_load_order( &ldo );
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entry = end;
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}
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}
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}
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/***************************************************************************
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* init_load_order
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*/
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static void init_load_order(void)
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{
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const char *order = getenv( "WINEDLLOVERRIDES" );
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UNICODE_STRING strW;
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WCHAR *entry, *next;
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init_done = 1;
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if (!order) return;
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if (!strcmp( order, "help" ))
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{
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MESSAGE( "Syntax:\n"
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" WINEDLLOVERRIDES=\"entry;entry;entry...\"\n"
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" where each entry is of the form:\n"
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" module[,module...]={native|builtin}[,{b|n}]\n"
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"\n"
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" Only the first letter of the override (native or builtin)\n"
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" is significant.\n\n"
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"Example:\n"
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" WINEDLLOVERRIDES=\"comdlg32=n,b;shell32,shlwapi=b\"\n" );
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exit(0);
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}
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RtlCreateUnicodeStringFromAsciiz( &strW, order );
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entry = strW.Buffer;
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while (*entry)
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{
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while (*entry && *entry == ';') entry++;
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if (!*entry) break;
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next = strchrW( entry, ';' );
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if (next) *next++ = 0;
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else next = entry + strlenW(entry);
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add_load_order_set( entry );
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entry = next;
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}
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/* sort the array for quick lookup */
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if (env_list.count)
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qsort(env_list.order, env_list.count, sizeof(env_list.order[0]), cmp_sort_func);
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/* Note: we don't free the Unicode string because the
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* stored module names point inside it */
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}
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/***************************************************************************
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* get_env_load_order
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*
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* Get the load order for a given module from the WINEDLLOVERRIDES environment variable.
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*/
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static inline BOOL get_env_load_order( const WCHAR *module, enum loadorder_type lo[] )
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{
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module_loadorder_t tmp, *res = NULL;
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tmp.modulename = module;
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/* some bsearch implementations (Solaris) are buggy when the number of items is 0 */
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if (env_list.count &&
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(res = bsearch(&tmp, env_list.order, env_list.count, sizeof(env_list.order[0]), cmp_sort_func)))
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memcpy( lo, res->loadorder, sizeof(res->loadorder) );
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return (res != NULL);
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}
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/***************************************************************************
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* get_default_load_order
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*
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* Get the load order for a given module from the default list.
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*/
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static inline BOOL get_default_load_order( const WCHAR *module, enum loadorder_type lo[] )
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{
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const int count = sizeof(default_builtins) / sizeof(default_builtins[0]);
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if (!bsearch( module, default_builtins, count, sizeof(default_builtins[0]), strcmp_func ))
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return FALSE;
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lo[0] = LOADORDER_BI;
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lo[1] = LOADORDER_INVALID;
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return TRUE;
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}
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/***************************************************************************
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* open_app_key
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*
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* Open the registry key to the app-specific DllOverrides list.
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*/
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static HANDLE open_app_key( const WCHAR *app_name, const WCHAR *module )
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{
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OBJECT_ATTRIBUTES attr;
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UNICODE_STRING nameW;
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HANDLE root, hkey;
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WCHAR *str;
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static const WCHAR AppDefaultsW[] = {'S','o','f','t','w','a','r','e','\\','W','i','n','e','\\',
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'A','p','p','D','e','f','a','u','l','t','s','\\',0};
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static const WCHAR DllOverridesW[] = {'\\','D','l','l','O','v','e','r','r','i','d','e','s',0};
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str = RtlAllocateHeap( GetProcessHeap(), 0,
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sizeof(AppDefaultsW) + sizeof(DllOverridesW) +
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strlenW(app_name) * sizeof(WCHAR) );
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if (!str) return 0;
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strcpyW( str, AppDefaultsW );
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strcatW( str, app_name );
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strcatW( str, DllOverridesW );
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TRACE( "searching %s in %s\n", debugstr_w(module), debugstr_w(str) );
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RtlOpenCurrentUser( KEY_ALL_ACCESS, &root );
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attr.Length = sizeof(attr);
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attr.RootDirectory = root;
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attr.ObjectName = &nameW;
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attr.Attributes = 0;
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attr.SecurityDescriptor = NULL;
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attr.SecurityQualityOfService = NULL;
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RtlInitUnicodeString( &nameW, str );
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/* @@ Wine registry key: HKCU\Software\Wine\AppDefaults\app.exe\DllOverrides */
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if (NtOpenKey( &hkey, KEY_ALL_ACCESS, &attr )) hkey = 0;
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NtClose( root );
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RtlFreeHeap( GetProcessHeap(), 0, str );
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return hkey;
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}
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/***************************************************************************
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* get_registry_value
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*
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* Load the registry loadorder value for a given module.
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*/
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static BOOL get_registry_value( HANDLE hkey, const WCHAR *module, enum loadorder_type lo[] )
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{
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UNICODE_STRING valueW;
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char buffer[80];
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DWORD count;
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BOOL ret;
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RtlInitUnicodeString( &valueW, module );
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if ((ret = !NtQueryValueKey( hkey, &valueW, KeyValuePartialInformation,
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buffer, sizeof(buffer), &count )))
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{
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int i, n = 0;
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WCHAR *str = (WCHAR *)((KEY_VALUE_PARTIAL_INFORMATION *)buffer)->Data;
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while (*str)
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{
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enum loadorder_type type = LOADORDER_INVALID;
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while (*str == ',' || isspaceW(*str)) str++;
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if (!*str) break;
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switch(tolowerW(*str))
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{
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case 'n': type = LOADORDER_DLL; break;
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case 'b': type = LOADORDER_BI; break;
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case 's': break; /* no longer supported, ignore */
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case 0: break; /* end of string */
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default:
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ERR("Invalid load order module-type %s, ignored\n", debugstr_w(str));
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break;
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}
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if (type != LOADORDER_INVALID)
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{
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for (i = 0; i < n; i++) if (lo[i] == type) break; /* already specified */
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if (i == n) lo[n++] = type;
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}
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while (*str && *str != ',' && !isspaceW(*str)) str++;
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}
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lo[n] = LOADORDER_INVALID;
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}
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return ret;
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}
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/***************************************************************************
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* MODULE_GetLoadOrderW (internal)
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*
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* Return the loadorder of a module.
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* The system directory and '.dll' extension is stripped from the path.
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*/
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void MODULE_GetLoadOrderW( enum loadorder_type loadorder[], const WCHAR *app_name,
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const WCHAR *path )
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{
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static const WCHAR DllOverridesW[] = {'S','o','f','t','w','a','r','e','\\','W','i','n','e','\\',
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'D','l','l','O','v','e','r','r','i','d','e','s',0};
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static HANDLE std_key = (HANDLE)-1; /* key to standard section, cached */
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HANDLE app_key = 0;
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WCHAR *module, *basename;
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UNICODE_STRING path_str;
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int len;
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if (!init_done) init_load_order();
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TRACE("looking for %s\n", debugstr_w(path));
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loadorder[0] = LOADORDER_INVALID; /* in case something bad happens below */
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/* Strip path information if the module resides in the system directory
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*/
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RtlInitUnicodeString( &path_str, path );
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if (RtlPrefixUnicodeString( &system_dir, &path_str, TRUE ))
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{
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const WCHAR *p = path + system_dir.Length / sizeof(WCHAR);
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while (*p == '\\' || *p == '/') p++;
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if (!strchrW( p, '\\' ) && !strchrW( p, '/' )) path = p;
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}
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if (!(len = strlenW(path))) return;
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if (!(module = RtlAllocateHeap( GetProcessHeap(), 0, (len + 2) * sizeof(WCHAR) ))) return;
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strcpyW( module+1, path ); /* reserve module[0] for the wildcard char */
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if (len >= 4) remove_dll_ext( module + 1 + len - 4 );
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/* check environment variable first */
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if (get_env_load_order( module+1, loadorder ))
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{
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TRACE( "got environment %s for %s\n",
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debugstr_loadorder(loadorder), debugstr_w(path) );
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goto done;
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}
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/* then explicit module name in AppDefaults */
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if (app_name)
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{
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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 );
|
|
basename[-1] = '*';
|
|
if (get_env_load_order( basename-1, loadorder ))
|
|
{
|
|
TRACE( "got environment basename %s for %s\n",
|
|
debugstr_loadorder(loadorder), debugstr_w(path) );
|
|
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) );
|
|
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) );
|
|
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;
|
|
}
|
|
}
|
|
|
|
/* and last the hard-coded default */
|
|
memcpy( loadorder, default_loadorder, sizeof(default_loadorder) );
|
|
TRACE( "got hardcoded default %s for %s\n",
|
|
debugstr_loadorder(loadorder), debugstr_w(path) );
|
|
|
|
done:
|
|
if (app_key) NtClose( app_key );
|
|
RtlFreeHeap( GetProcessHeap(), 0, module );
|
|
}
|