loader/loadorder.c

   1 /*
   2  * Module/Library loadorder
   3  *
   4  * Copyright 1999 Bertho Stultiens
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include <stdlib.h>
  25 #include <string.h>
  26 #include <assert.h>
  27
  28 #include "windef.h"
  29 #include "winerror.h"
  30 #include "winternl.h"
  31 #include "file.h"
  32 #include "module.h"
  33
  34 #include "wine/debug.h"
  35 #include "wine/unicode.h"
  36
  37 WINE_DEFAULT_DEBUG_CHANNEL(module);
  38
  39 #define LOADORDER_ALLOC_CLUSTER 32      /* Allocate with 32 entries at a time */
  40
  41 typedef struct module_loadorder
  42 {
  43     const char         *modulename;
  44     enum loadorder_type loadorder[LOADORDER_NTYPES];
  45 } module_loadorder_t;
  46
  47 struct loadorder_list
  48 {
  49     int                 count;
  50     int                 alloc;
  51     module_loadorder_t *order;
  52 };
  53
  54 /* default load-order if nothing specified */
  55 /* the list must remain sorted by dll name */
  56 static module_loadorder_t default_order_list[] =
  57 {
  58     { "display",      { LOADORDER_BI,  0,             0, 0 } },
  59     { "gdi.exe",      { LOADORDER_BI,  0,             0, 0 } },
  60     { "gdi32",        { LOADORDER_BI,  0,             0, 0 } },
  61     { "glide2x",      { LOADORDER_SO,  LOADORDER_DLL, 0, 0 } },
  62     { "glide3x",      { LOADORDER_SO,  LOADORDER_DLL, 0, 0 } },
  63     { "icmp",         { LOADORDER_BI,  0,             0, 0 } },
  64     { "kernel",       { LOADORDER_BI,  0,             0, 0 } },
  65     { "kernel32",     { LOADORDER_BI,  0,             0, 0 } },
  66     { "keyboard",     { LOADORDER_BI,  0,             0, 0 } },
  67     { "krnl386.exe",  { LOADORDER_BI,  0,             0, 0 } },
  68     { "mmsystem",     { LOADORDER_BI,  0,             0, 0 } },
  69     { "mouse",        { LOADORDER_BI,  0,             0, 0 } },
  70     { "ntdll",        { LOADORDER_BI,  0,             0, 0 } },
  71     { "odbc32",       { LOADORDER_BI,  0,             0, 0 } },
  72     { "system",       { LOADORDER_BI,  0,             0, 0 } },
  73     { "toolhelp",     { LOADORDER_BI,  0,             0, 0 } },
  74     { "ttydrv",       { LOADORDER_BI,  0,             0, 0 } },
  75     { "user.exe",     { LOADORDER_BI,  0,             0, 0 } },
  76     { "user32",       { LOADORDER_BI,  0,             0, 0 } },
  77     { "w32skrnl",     { LOADORDER_BI,  0,             0, 0 } },
  78     { "winaspi",      { LOADORDER_BI,  0,             0, 0 } },
  79     { "windebug",     { LOADORDER_DLL, LOADORDER_BI,  0, 0 } },
  80     { "winedos",      { LOADORDER_BI,  0,             0, 0 } },
  81     { "wineps",       { LOADORDER_BI,  0,             0, 0 } },
  82     { "wing",         { LOADORDER_BI,  0,             0, 0 } },
  83     { "winmm",        { LOADORDER_BI,  0,             0, 0 } },
  84     { "winsock",      { LOADORDER_BI,  0,             0, 0 } },
  85     { "wnaspi32",     { LOADORDER_BI,  0,             0, 0 } },
  86     { "wow32",        { LOADORDER_BI,  0,             0, 0 } },
  87     { "wprocs",       { LOADORDER_BI,  0,             0, 0 } },
  88     { "ws2_32",       { LOADORDER_BI,  0,             0, 0 } },
  89     { "wsock32",      { LOADORDER_BI,  0,             0, 0 } },
  90     { "x11drv",       { LOADORDER_BI,  0,             0, 0 } }
  91 };
  92
  93 static const struct loadorder_list default_list =
  94 {
  95     sizeof(default_order_list)/sizeof(default_order_list[0]),
  96     sizeof(default_order_list)/sizeof(default_order_list[0]),
  97     default_order_list
  98 };
  99
 100 /* default if nothing else specified */
 101 static const enum loadorder_type default_loadorder[LOADORDER_NTYPES] =
 102 {
 103     LOADORDER_BI, LOADORDER_DLL, 0, 0
 104 };
 105
 106 static struct loadorder_list cmdline_list;
 107
 108
 109 /***************************************************************************
 110  *      cmp_sort_func   (internal, static)
 111  *
 112  * Sorting and comparing function used in sort and search of loadorder
 113  * entries.
 114  */
 115 static int cmp_sort_func(const void *s1, const void *s2)
 116 {
 117     return FILE_strcasecmp(((module_loadorder_t *)s1)->modulename,
 118                            ((module_loadorder_t *)s2)->modulename);
 119 }
 120
 121
 122 /***************************************************************************
 123  *      get_tok (internal, static)
 124  *
 125  * strtok wrapper for non-destructive buffer writing.
 126  * NOTE: strtok is not reentrant and therefore this code is neither.
 127  */
 128 static char *get_tok(const char *str, const char *delim)
 129 {
 130         static char *buf = NULL;
 131         char *cptr;
 132
 133         if(!str && !buf)
 134                 return NULL;
 135
 136         if(str && buf)
 137         {
 138                 HeapFree(GetProcessHeap(), 0, buf);
 139                 buf = NULL;
 140         }
 141
 142         if(str && !buf)
 143         {
 144                 buf = HeapAlloc(GetProcessHeap(), 0, strlen(str)+1);
 145                 strcpy( buf, str );
 146                 cptr = strtok(buf, delim);
 147         }
 148         else
 149         {
 150                 cptr = strtok(NULL, delim);
 151         }
 152
 153         if(!cptr)
 154         {
 155                 HeapFree(GetProcessHeap(), 0, buf);
 156                 buf = NULL;
 157         }
 158         return cptr;
 159 }
 160
 161
 162 /***************************************************************************
 163  *      get_basename
 164  *
 165  * Return the base name of a file name (i.e. remove the path components).
 166  */
 167 static const char *get_basename( const char *name )
 168 {
 169     const char *ptr;
 170
 171     if (name[0] && name[1] == ':') name += 2;  /* strip drive specification */
 172     if ((ptr = strrchr( name, '\\' ))) name = ptr + 1;
 173     if ((ptr = strrchr( name, '/' ))) name = ptr + 1;
 174     return name;
 175 }
 176
 177
 178 /***************************************************************************
 179  *      debugstr_loadorder
 180  *
 181  * Return a loadorder in printable form.
 182  */
 183 static const char *debugstr_loadorder( enum loadorder_type lo[] )
 184 {
 185     int i;
 186     char buffer[LOADORDER_NTYPES*3+1];
 187
 188     buffer[0] = 0;
 189     for(i = 0; i < LOADORDER_NTYPES; i++)
 190     {
 191         if (lo[i] == LOADORDER_INVALID) break;
 192         switch(lo[i])
 193         {
 194         case LOADORDER_DLL: strcat( buffer, "n," ); break;
 195         case LOADORDER_SO:  strcat( buffer, "s," ); break;
 196         case LOADORDER_BI:  strcat( buffer, "b," ); break;
 197         default:            strcat( buffer, "?," ); break;
 198         }
 199     }
 200     if (buffer[0]) buffer[strlen(buffer)-1] = 0;
 201     return debugstr_a(buffer);
 202 }
 203
 204
 205 /***************************************************************************
 206  *      ParseLoadOrder  (internal, static)
 207  *
 208  * Parses the loadorder options from the configuration and puts it into
 209  * a structure.
 210  */
 211 static BOOL ParseLoadOrder(char *order, enum loadorder_type lo[])
 212 {
 213     static int warn;
 214         char *cptr;
 215         int n = 0;
 216
 217         cptr = get_tok(order, ", \t");
 218         while(cptr)
 219         {
 220             enum loadorder_type type = LOADORDER_INVALID;
 221
 222                 if(n >= LOADORDER_NTYPES-1)
 223                 {
 224                         ERR("More than existing %d module-types specified, rest ignored\n", LOADORDER_NTYPES-1);
 225                         break;
 226                 }
 227
 228                 switch(*cptr)
 229                 {
 230                 case 'N':       /* Native */
 231                 case 'n': type = LOADORDER_DLL; break;
 232
 233                 case 'E':       /* Elfdll */
 234                 case 'e':
 235                     if (!warn++) MESSAGE("Load order 'elfdll' no longer supported, ignored\n");
 236                     break;
 237                 case 'S':       /* So */
 238                 case 's': type = LOADORDER_SO; break;
 239
 240                 case 'B':       /* Builtin */
 241                 case 'b': type = LOADORDER_BI; break;
 242
 243                 default:
 244                         ERR("Invalid load order module-type '%s', ignored\n", cptr);
 245                 }
 246
 247                 if(type != LOADORDER_INVALID) lo[n++] = type;
 248                 cptr = get_tok(NULL, ", \t");
 249         }
 250         lo[n] = LOADORDER_INVALID;
 251         return TRUE;
 252 }
 253
 254
 255 /***************************************************************************
 256  *      AddLoadOrder    (internal, static)
 257  *
 258  * Adds an entry in the list of command-line overrides.
 259  */
 260 static BOOL AddLoadOrder(module_loadorder_t *plo)
 261 {
 262         int i;
 263
 264         /* TRACE(module, "'%s' -> %08lx\n", plo->modulename, *(DWORD *)(plo->loadorder)); */
 265
 266         for(i = 0; i < cmdline_list.count; i++)
 267         {
 268             if(!cmp_sort_func(plo, &cmdline_list.order[i] ))
 269             {
 270                 /* replace existing option */
 271                 memcpy( cmdline_list.order[i].loadorder, plo->loadorder, sizeof(plo->loadorder));
 272                 return TRUE;
 273             }
 274         }
 275
 276         if (i >= cmdline_list.alloc)
 277         {
 278                 /* No space in current array, make it larger */
 279                 cmdline_list.alloc += LOADORDER_ALLOC_CLUSTER;
 280                 cmdline_list.order = HeapReAlloc(GetProcessHeap(), 0, cmdline_list.order,
 281                                           cmdline_list.alloc * sizeof(module_loadorder_t));
 282                 if(!cmdline_list.order)
 283                 {
 284                         MESSAGE("Virtual memory exhausted\n");
 285                         exit(1);
 286                 }
 287         }
 288         memcpy(cmdline_list.order[i].loadorder, plo->loadorder, sizeof(plo->loadorder));
 289         cmdline_list.order[i].modulename = HeapAlloc(GetProcessHeap(), 0, strlen(plo->modulename)+1);
 290         strcpy( (char *)cmdline_list.order[i].modulename, plo->modulename );
 291         cmdline_list.count++;
 292         return TRUE;
 293 }
 294
 295
 296 /***************************************************************************
 297  *      AddLoadOrderSet (internal, static)
 298  *
 299  * Adds a set of entries in the list of command-line overrides from the key parameter.
 300  */
 301 static BOOL AddLoadOrderSet(char *key, char *order)
 302 {
 303         module_loadorder_t ldo;
 304         char *cptr;
 305
 306         /* Parse the loadorder before the rest because strtok is not reentrant */
 307         if(!ParseLoadOrder(order, ldo.loadorder))
 308                 return FALSE;
 309
 310         cptr = get_tok(key, ", \t");
 311         while(cptr)
 312         {
 313                 char *ext = strrchr(cptr, '.');
 314                 if(ext && !FILE_strcasecmp( ext, ".dll" )) *ext = 0;
 315                 ldo.modulename = cptr;
 316                 if(!AddLoadOrder(&ldo)) return FALSE;
 317                 cptr = get_tok(NULL, ", \t");
 318         }
 319         return TRUE;
 320 }
 321
 322
 323 /***************************************************************************
 324  *      MODULE_AddLoadOrderOption
 325  *
 326  * The commandline option is in the form:
 327  * name[,name,...]=native[,b,...]
 328  */
 329 void MODULE_AddLoadOrderOption( const char *option )
 330 {
 331     char *value, *key = HeapAlloc(GetProcessHeap(), 0, strlen(option)+1);
 332
 333     strcpy( key, option );
 334     if (!(value = strchr(key, '='))) goto error;
 335     *value++ = '\0';
 336
 337     TRACE("Commandline override '%s' = '%s'\n", key, value);
 338
 339     if (!AddLoadOrderSet(key, value)) goto error;
 340     HeapFree(GetProcessHeap(), 0, key);
 341
 342     /* sort the array for quick lookup */
 343     qsort(cmdline_list.order, cmdline_list.count, sizeof(cmdline_list.order[0]), cmp_sort_func);
 344     return;
 345
 346  error:
 347     MESSAGE( "Syntax: -dll name[,name[,...]]={native|so|builtin}[,{n|s|b}[,...]]\n"
 348              "    - 'name' is the name of any dll without extension\n"
 349              "    - the order of loading (native, so and builtin) can be abbreviated\n"
 350              "      with the first letter\n"
 351              "    - the option can be specified multiple times\n"
 352              "    Example:\n"
 353              "    -dll comdlg32,commdlg=n -dll shell,shell32=b\n" );
 354     ExitProcess(1);
 355 }
 356
 357
 358 /***************************************************************************
 359  *      get_list_load_order
 360  *
 361  * Get the load order for a given module from the command-line or
 362  * default lists.
 363  */
 364 static BOOL get_list_load_order( const char *module, const struct loadorder_list *list,
 365                                  enum loadorder_type lo[] )
 366 {
 367     module_loadorder_t tmp, *res = NULL;
 368
 369     tmp.modulename = module;
 370     /* some bsearch implementations (Solaris) are buggy when the number of items is 0 */
 371     if (list->count && (res = bsearch(&tmp, list->order, list->count, sizeof(list->order[0]), cmp_sort_func)))
 372         memcpy( lo, res->loadorder, sizeof(res->loadorder) );
 373     return (res != NULL);
 374 }
 375
 376
 377 /***************************************************************************
 378  *      open_app_key
 379  *
 380  * Open the registry key to the app-specific DllOverrides list.
 381  */
 382 static HKEY open_app_key( const char *module )
 383 {
 384     OBJECT_ATTRIBUTES attr;
 385     UNICODE_STRING nameW;
 386     HKEY hkey, appkey;
 387     char buffer[MAX_PATH+16], *appname;
 388     static const WCHAR AppDefaultsW[] = {'M','a','c','h','i','n','e','\\',
 389                                          'S','o','f','t','w','a','r','e','\\',
 390                                          'W','i','n','e','\\',
 391                                          'W','i','n','e','\\',
 392                                          'C','o','n','f','i','g','\\',
 393                                          'A','p','p','D','e','f','a','u','l','t','s',0};
 394
 395     if (!GetModuleFileNameA( 0, buffer, MAX_PATH ))
 396     {
 397         WARN( "could not get module file name loading %s\n", module );
 398         return 0;
 399     }
 400     appname = (char *)get_basename( buffer );
 401
 402     TRACE( "searching '%s' in AppDefaults\\%s\\DllOverrides\n", module, appname );
 403
 404     attr.Length = sizeof(attr);
 405     attr.RootDirectory = 0;
 406     attr.ObjectName = &nameW;
 407     attr.Attributes = 0;
 408     attr.SecurityDescriptor = NULL;
 409     attr.SecurityQualityOfService = NULL;
 410     RtlInitUnicodeString( &nameW, AppDefaultsW );
 411
 412     if (NtOpenKey( &hkey, KEY_ALL_ACCESS, &attr )) return 0;
 413     attr.RootDirectory = hkey;
 414
 415     /* open AppDefaults\\appname\\DllOverrides key */
 416     strcat( appname, "\\DllOverrides" );
 417     RtlCreateUnicodeStringFromAsciiz( &nameW, appname );
 418     if (NtOpenKey( &appkey, KEY_ALL_ACCESS, &attr )) appkey = 0;
 419     RtlFreeUnicodeString( &nameW );
 420     NtClose( hkey );
 421     return appkey;
 422 }
 423
 424
 425 /***************************************************************************
 426  *      get_registry_value
 427  *
 428  * Load the registry loadorder value for a given module.
 429  */
 430 static BOOL get_registry_value( HKEY hkey, const char *module, enum loadorder_type lo[] )
 431 {
 432     UNICODE_STRING valueW;
 433     char buffer[80];
 434     DWORD count;
 435     BOOL ret;
 436
 437     RtlCreateUnicodeStringFromAsciiz( &valueW, module );
 438
 439     if ((ret = !NtQueryValueKey( hkey, &valueW, KeyValuePartialInformation,
 440                                  buffer, sizeof(buffer), &count )))
 441     {
 442         int i, n = 0;
 443         WCHAR *str = (WCHAR *)((KEY_VALUE_PARTIAL_INFORMATION *)buffer)->Data;
 444
 445         while (*str)
 446         {
 447             enum loadorder_type type = LOADORDER_INVALID;
 448
 449             while (*str == ',' || isspaceW(*str)) str++;
 450             if (!*str) break;
 451
 452             switch(tolowerW(*str))
 453             {
 454             case 'n': type = LOADORDER_DLL; break;
 455             case 's': type = LOADORDER_SO; break;
 456             case 'b': type = LOADORDER_BI; break;
 457             case 0:   break;  /* end of string */
 458             default:
 459                 ERR("Invalid load order module-type %s, ignored\n", debugstr_w(str));
 460                 break;
 461             }
 462             if (type != LOADORDER_INVALID)
 463             {
 464                 for (i = 0; i < n; i++) if (lo[i] == type) break;  /* already specified */
 465                 if (i == n) lo[n++] = type;
 466             }
 467             while (*str && *str != ',' && !isspaceW(*str)) str++;
 468         }
 469         lo[n] = LOADORDER_INVALID;
 470     }
 471     RtlFreeUnicodeString( &valueW );
 472     return ret;
 473 }
 474
 475
 476 /***************************************************************************
 477  *      MODULE_GetBuiltinPath
 478  *
 479  * Get the path of a builtin module when the native file does not exist.
 480  */
 481 BOOL MODULE_GetBuiltinPath( const char *libname, const char *ext, char *filename, UINT size )
 482 {
 483     char *p;
 484     BOOL ret = FALSE;
 485     UINT len = GetSystemDirectoryA( filename, size );
 486
 487     if (FILE_contains_path( libname ))
 488     {
 489         char *tmp;
 490
 491         /* if the library name contains a path and can not be found,
 492          * return an error.
 493          * exception: if the path is the system directory, proceed,
 494          * so that modules which are not PE modules can be loaded.
 495          * If the library name does not contain a path and can not
 496          * be found, assume the system directory is meant */
 497
 498         if (strlen(libname) >= size) return FALSE;  /* too long */
 499         if (strchr( libname, '/' ))  /* need to convert slashes */
 500         {
 501             if (!(tmp = HeapAlloc( GetProcessHeap(), 0, strlen(libname)+1 ))) return FALSE;
 502             strcpy( tmp, libname );
 503             for (p = tmp; *p; p++) if (*p == '/') *p = '\\';
 504         }
 505         else tmp = (char *)libname;
 506
 507         if (!FILE_strncasecmp( filename, tmp, len ) && tmp[len] == '\\')
 508         {
 509             strcpy( filename, tmp );
 510             ret = TRUE;
 511         }
 512         if (tmp != libname) HeapFree( GetProcessHeap(), 0, tmp );
 513         if (!ret) return FALSE;
 514     }
 515     else
 516     {
 517         if (strlen(libname) >= size - len - 1) return FALSE;
 518         filename[len] = '\\';
 519         strcpy( filename+len+1, libname );
 520     }
 521
 522     /* if the filename doesn't have an extension, append the default */
 523     if (!(p = strrchr( filename, '.')) || strchr( p, '/' ) || strchr( p, '\\'))
 524     {
 525         if (strlen(filename) + strlen(ext) >= size) return FALSE;
 526         strcat( filename, ext );
 527     }
 528     return TRUE;
 529 }
 530
 531
 532 /***************************************************************************
 533  *      MODULE_GetLoadOrder     (internal)
 534  *
 535  * Locate the loadorder of a module.
 536  * Any path is stripped from the path-argument and so are the extension
 537  * '.dll' and '.exe'. A lookup in the table can yield an override for
 538  * the specific dll. Otherwise the default load order is returned.
 539  */
 540 void MODULE_GetLoadOrder( enum loadorder_type loadorder[], const char *path, BOOL win32 )
 541 {
 542     static const WCHAR DllOverridesW[] = {'M','a','c','h','i','n','e','\\',
 543                                           'S','o','f','t','w','a','r','e','\\',
 544                                           'W','i','n','e','\\',
 545                                           'W','i','n','e','\\',
 546                                           'C','o','n','f','i','g','\\',
 547                                           'D','l','l','O','v','e','r','r','i','d','e','s',0};
 548
 549     static HKEY std_key = (HKEY)-1;  /* key to standard section, cached */
 550     HKEY app_key = 0;
 551     char *module, *basename;
 552     int len;
 553
 554     TRACE("looking for %s\n", path);
 555
 556     loadorder[0] = LOADORDER_INVALID;  /* in case something bad happens below */
 557
 558     /* Strip path information for 16 bit modules or if the module
 559      * resides in the system directory */
 560     if (!win32)
 561     {
 562         path = get_basename( path );
 563         if (BUILTIN_IsPresent(path))
 564         {
 565             TRACE( "forcing loadorder to builtin for %s\n", debugstr_a(path) );
 566             /* force builtin loadorder since the dll is already in memory */
 567             loadorder[0] = LOADORDER_BI;
 568             loadorder[1] = LOADORDER_INVALID;
 569             return;
 570         }
 571     }
 572     else
 573     {
 574         char sysdir[MAX_PATH+1];
 575         if (!GetSystemDirectoryA( sysdir, MAX_PATH )) return;
 576         if (!FILE_strncasecmp( sysdir, path, strlen (sysdir) ))
 577         {
 578             path += strlen(sysdir);
 579             while (*path == '\\' || *path == '/') path++;
 580         }
 581     }
 582
 583     if (!(len = strlen(path))) return;
 584     if (!(module = HeapAlloc( GetProcessHeap(), 0, len + 2 ))) return;
 585     strcpy( module+1, path );  /* reserve module[0] for the wildcard char */
 586
 587     if (len >= 4)
 588     {
 589         char *ext = module + 1 + len - 4;
 590         if (!FILE_strcasecmp( ext, ".dll" )) *ext = 0;
 591     }
 592
 593     /* check command-line first */
 594     if (get_list_load_order( module+1, &cmdline_list, loadorder ))
 595     {
 596         TRACE( "got cmdline %s for %s\n",
 597                debugstr_loadorder(loadorder), debugstr_a(path) );
 598         goto done;
 599     }
 600
 601     /* then explicit module name in AppDefaults */
 602     app_key = open_app_key( module+1 );
 603     if (app_key && get_registry_value( app_key, module+1, loadorder ))
 604     {
 605         TRACE( "got app defaults %s for %s\n",
 606                debugstr_loadorder(loadorder), debugstr_a(path) );
 607         goto done;
 608     }
 609
 610     /* then explicit module name in standard section */
 611     if (std_key == (HKEY)-1)
 612     {
 613         OBJECT_ATTRIBUTES attr;
 614         UNICODE_STRING nameW;
 615
 616         attr.Length = sizeof(attr);
 617         attr.RootDirectory = 0;
 618         attr.ObjectName = &nameW;
 619         attr.Attributes = 0;
 620         attr.SecurityDescriptor = NULL;
 621         attr.SecurityQualityOfService = NULL;
 622         RtlInitUnicodeString( &nameW, DllOverridesW );
 623
 624         if (NtOpenKey( &std_key, KEY_ALL_ACCESS, &attr )) std_key = 0;
 625     }
 626
 627     if (std_key && get_registry_value( std_key, module+1, loadorder ))
 628     {
 629         TRACE( "got standard entry %s for %s\n",
 630                debugstr_loadorder(loadorder), debugstr_a(path) );
 631         goto done;
 632     }
 633
 634     /* then module basename preceded by '*' in AppDefaults */
 635     basename = (char *)get_basename( module+1 );
 636     basename[-1] = '*';
 637     if (app_key && get_registry_value( app_key, basename-1, loadorder ))
 638     {
 639         TRACE( "got app defaults basename %s for %s\n",
 640                debugstr_loadorder(loadorder), debugstr_a(path) );
 641         goto done;
 642     }
 643
 644     /* then module name preceded by '*' in standard section */
 645     if (std_key && get_registry_value( std_key, basename-1, loadorder ))
 646     {
 647         TRACE( "got standard base name %s for %s\n",
 648                debugstr_loadorder(loadorder), debugstr_a(path) );
 649         goto done;
 650     }
 651
 652     /* then base name matching compiled-in defaults */
 653     if (get_list_load_order( basename, &default_list, loadorder ))
 654     {
 655         TRACE( "got compiled-in default %s for %s\n",
 656                debugstr_loadorder(loadorder), debugstr_a(path) );
 657         goto done;
 658     }
 659
 660     if (basename == module+1)
 661     {
 662         /* then wildcard entry in AppDefaults (only if no explicit path) */
 663         if (app_key && get_registry_value( app_key, "*", loadorder ))
 664         {
 665             TRACE( "got app defaults wildcard %s for %s\n",
 666                    debugstr_loadorder(loadorder), debugstr_a(path) );
 667             goto done;
 668         }
 669
 670         /* then wildcard entry in standard section (only if no explicit path) */
 671         if (std_key && get_registry_value( std_key, "*", loadorder ))
 672         {
 673             TRACE( "got standard wildcard %s for %s\n",
 674                    debugstr_loadorder(loadorder), debugstr_a(path) );
 675             goto done;
 676         }
 677     }
 678
 679     /* and last the hard-coded default */
 680     memcpy( loadorder, default_loadorder, sizeof(default_loadorder) );
 681     TRACE( "got hardcoded default %s for %s\n",
 682            debugstr_loadorder(loadorder), debugstr_a(path) );
 683
 684
 685  done:
 686     if (app_key) NtClose( app_key );
 687     HeapFree( GetProcessHeap(), 0, module );
 688 }