2 * Module/Library loadorder
4 * Copyright 1999 Bertho Stultiens
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.
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.
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
22 #include "wine/port.h"
34 #include "wine/debug.h"
35 #include "wine/unicode.h"
37 WINE_DEFAULT_DEBUG_CHANNEL(module);
39 #define LOADORDER_ALLOC_CLUSTER 32 /* Allocate with 32 entries at a time */
41 typedef struct module_loadorder
43 const char *modulename;
44 enum loadorder_type loadorder[LOADORDER_NTYPES];
51 module_loadorder_t *order;
54 /* default load-order if nothing specified */
55 /* the list must remain sorted by dll name */
56 static module_loadorder_t default_order_list[] =
58 { "display", { LOADORDER_BI, 0, 0 } },
59 { "gdi.exe", { LOADORDER_BI, 0, 0 } },
60 { "gdi32", { LOADORDER_BI, 0, 0 } },
61 { "icmp", { LOADORDER_BI, 0, 0 } },
62 { "kernel", { LOADORDER_BI, 0, 0 } },
63 { "kernel32", { LOADORDER_BI, 0, 0 } },
64 { "keyboard", { LOADORDER_BI, 0, 0 } },
65 { "krnl386.exe", { LOADORDER_BI, 0, 0 } },
66 { "mmsystem", { LOADORDER_BI, 0, 0 } },
67 { "mouse", { LOADORDER_BI, 0, 0 } },
68 { "ntdll", { LOADORDER_BI, 0, 0 } },
69 { "odbc32", { LOADORDER_BI, 0, 0 } },
70 { "system.drv", { LOADORDER_BI, 0, 0 } },
71 { "toolhelp", { LOADORDER_BI, 0, 0 } },
72 { "ttydrv", { LOADORDER_BI, 0, 0 } },
73 { "user.exe", { LOADORDER_BI, 0, 0 } },
74 { "user32", { LOADORDER_BI, 0, 0 } },
75 { "w32skrnl", { LOADORDER_BI, 0, 0 } },
76 { "winaspi", { LOADORDER_BI, 0, 0 } },
77 { "winedos", { LOADORDER_BI, 0, 0 } },
78 { "wineps", { LOADORDER_BI, 0, 0 } },
79 { "wing", { LOADORDER_BI, 0, 0 } },
80 { "winmm", { LOADORDER_BI, 0, 0 } },
81 { "winsock", { LOADORDER_BI, 0, 0 } },
82 { "wnaspi32", { LOADORDER_BI, 0, 0 } },
83 { "wow32", { LOADORDER_BI, 0, 0 } },
84 { "wprocs", { LOADORDER_BI, 0, 0 } },
85 { "ws2_32", { LOADORDER_BI, 0, 0 } },
86 { "wsock32", { LOADORDER_BI, 0, 0 } },
87 { "x11drv", { LOADORDER_BI, 0, 0 } }
90 static const struct loadorder_list default_list =
92 sizeof(default_order_list)/sizeof(default_order_list[0]),
93 sizeof(default_order_list)/sizeof(default_order_list[0]),
97 /* default if nothing else specified */
98 static const enum loadorder_type default_loadorder[LOADORDER_NTYPES] =
100 LOADORDER_BI, LOADORDER_DLL, 0
103 /* default for modules with an explicit path */
104 static const enum loadorder_type default_path_loadorder[LOADORDER_NTYPES] =
106 LOADORDER_DLL, LOADORDER_BI, 0
109 static struct loadorder_list cmdline_list;
112 /***************************************************************************
113 * cmp_sort_func (internal, static)
115 * Sorting and comparing function used in sort and search of loadorder
118 static int cmp_sort_func(const void *s1, const void *s2)
120 return FILE_strcasecmp(((module_loadorder_t *)s1)->modulename,
121 ((module_loadorder_t *)s2)->modulename);
125 /***************************************************************************
126 * get_tok (internal, static)
128 * strtok wrapper for non-destructive buffer writing.
129 * NOTE: strtok is not reentrant and therefore this code is neither.
131 static char *get_tok(const char *str, const char *delim)
133 static char *buf = NULL;
141 HeapFree(GetProcessHeap(), 0, buf);
147 buf = HeapAlloc(GetProcessHeap(), 0, strlen(str)+1);
149 cptr = strtok(buf, delim);
153 cptr = strtok(NULL, delim);
158 HeapFree(GetProcessHeap(), 0, buf);
165 /***************************************************************************
168 * Return the base name of a file name (i.e. remove the path components).
170 static const char *get_basename( const char *name )
174 if (name[0] && name[1] == ':') name += 2; /* strip drive specification */
175 if ((ptr = strrchr( name, '\\' ))) name = ptr + 1;
176 if ((ptr = strrchr( name, '/' ))) name = ptr + 1;
181 /***************************************************************************
184 * Return a loadorder in printable form.
186 static const char *debugstr_loadorder( enum loadorder_type lo[] )
189 char buffer[LOADORDER_NTYPES*3+1];
192 for(i = 0; i < LOADORDER_NTYPES; i++)
194 if (lo[i] == LOADORDER_INVALID) break;
197 case LOADORDER_DLL: strcat( buffer, "n," ); break;
198 case LOADORDER_BI: strcat( buffer, "b," ); break;
199 default: strcat( buffer, "?," ); break;
202 if (buffer[0]) buffer[strlen(buffer)-1] = 0;
203 return debugstr_a(buffer);
207 /***************************************************************************
208 * ParseLoadOrder (internal, static)
210 * Parses the loadorder options from the configuration and puts it into
213 static BOOL ParseLoadOrder(char *order, enum loadorder_type lo[])
219 cptr = get_tok(order, ", \t");
222 enum loadorder_type type = LOADORDER_INVALID;
224 if(n >= LOADORDER_NTYPES-1)
226 ERR("More than existing %d module-types specified, rest ignored\n", LOADORDER_NTYPES-1);
232 case 'N': /* Native */
233 case 'n': type = LOADORDER_DLL; break;
237 if (!warn++) MESSAGE("Load order 'so' no longer supported, ignored\n");
240 case 'B': /* Builtin */
241 case 'b': type = LOADORDER_BI; break;
244 ERR("Invalid load order module-type '%s', ignored\n", cptr);
247 if(type != LOADORDER_INVALID) lo[n++] = type;
248 cptr = get_tok(NULL, ", \t");
250 lo[n] = LOADORDER_INVALID;
255 /***************************************************************************
256 * AddLoadOrder (internal, static)
258 * Adds an entry in the list of command-line overrides.
260 static BOOL AddLoadOrder(module_loadorder_t *plo)
264 /* TRACE(module, "'%s' -> %08lx\n", plo->modulename, *(DWORD *)(plo->loadorder)); */
266 for(i = 0; i < cmdline_list.count; i++)
268 if(!cmp_sort_func(plo, &cmdline_list.order[i] ))
270 /* replace existing option */
271 memcpy( cmdline_list.order[i].loadorder, plo->loadorder, sizeof(plo->loadorder));
276 if (i >= cmdline_list.alloc)
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)
284 MESSAGE("Virtual memory exhausted\n");
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++;
296 /***************************************************************************
297 * AddLoadOrderSet (internal, static)
299 * Adds a set of entries in the list of command-line overrides from the key parameter.
301 static BOOL AddLoadOrderSet(char *key, char *order)
303 module_loadorder_t ldo;
306 /* Parse the loadorder before the rest because strtok is not reentrant */
307 if(!ParseLoadOrder(order, ldo.loadorder))
310 cptr = get_tok(key, ", \t");
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");
323 /***************************************************************************
324 * MODULE_AddLoadOrderOption
326 * The commandline option is in the form:
327 * name[,name,...]=native[,b,...]
329 void MODULE_AddLoadOrderOption( const char *option )
331 char *value, *key = HeapAlloc(GetProcessHeap(), 0, strlen(option)+1);
333 strcpy( key, option );
334 if (!(value = strchr(key, '='))) goto error;
337 TRACE("Commandline override '%s' = '%s'\n", key, value);
339 if (!AddLoadOrderSet(key, value)) goto error;
340 HeapFree(GetProcessHeap(), 0, key);
342 /* sort the array for quick lookup */
343 qsort(cmdline_list.order, cmdline_list.count, sizeof(cmdline_list.order[0]), cmp_sort_func);
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"
353 " -dll comdlg32,commdlg=n -dll shell,shell32=b\n" );
358 /***************************************************************************
359 * get_list_load_order
361 * Get the load order for a given module from the command-line or
364 static BOOL get_list_load_order( const char *module, const struct loadorder_list *list,
365 enum loadorder_type lo[] )
367 module_loadorder_t tmp, *res = NULL;
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);
377 /***************************************************************************
380 * Open the registry key to the app-specific DllOverrides list.
382 static HKEY open_app_key( const char *module )
384 OBJECT_ATTRIBUTES attr;
385 UNICODE_STRING nameW;
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};
395 if (!GetModuleFileNameA( 0, buffer, MAX_PATH ))
397 WARN( "could not get module file name loading %s\n", module );
400 appname = (char *)get_basename( buffer );
402 TRACE( "searching '%s' in AppDefaults\\%s\\DllOverrides\n", module, appname );
404 attr.Length = sizeof(attr);
405 attr.RootDirectory = 0;
406 attr.ObjectName = &nameW;
408 attr.SecurityDescriptor = NULL;
409 attr.SecurityQualityOfService = NULL;
410 RtlInitUnicodeString( &nameW, AppDefaultsW );
412 if (NtOpenKey( &hkey, KEY_ALL_ACCESS, &attr )) return 0;
413 attr.RootDirectory = hkey;
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 );
425 /***************************************************************************
428 * Load the registry loadorder value for a given module.
430 static BOOL get_registry_value( HKEY hkey, const char *module, enum loadorder_type lo[] )
432 UNICODE_STRING valueW;
437 RtlCreateUnicodeStringFromAsciiz( &valueW, module );
439 if ((ret = !NtQueryValueKey( hkey, &valueW, KeyValuePartialInformation,
440 buffer, sizeof(buffer), &count )))
443 WCHAR *str = (WCHAR *)((KEY_VALUE_PARTIAL_INFORMATION *)buffer)->Data;
447 enum loadorder_type type = LOADORDER_INVALID;
449 while (*str == ',' || isspaceW(*str)) str++;
452 switch(tolowerW(*str))
454 case 'n': type = LOADORDER_DLL; break;
455 case 'b': type = LOADORDER_BI; break;
456 case 's': break; /* no longer supported, ignore */
457 case 0: break; /* end of string */
459 ERR("Invalid load order module-type %s, ignored\n", debugstr_w(str));
462 if (type != LOADORDER_INVALID)
464 for (i = 0; i < n; i++) if (lo[i] == type) break; /* already specified */
465 if (i == n) lo[n++] = type;
467 while (*str && *str != ',' && !isspaceW(*str)) str++;
469 lo[n] = LOADORDER_INVALID;
471 RtlFreeUnicodeString( &valueW );
476 /***************************************************************************
477 * MODULE_GetBuiltinPath
479 * Get the path of a builtin module when the native file does not exist.
481 BOOL MODULE_GetBuiltinPath( const char *libname, const char *ext, char *filename, UINT size )
485 UINT len = GetSystemDirectoryA( filename, size );
487 if (FILE_contains_path( libname ))
491 /* if the library name contains a path and can not be found,
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 */
498 if (strlen(libname) >= size) return FALSE; /* too long */
499 if (strchr( libname, '/' )) /* need to convert slashes */
501 if (!(tmp = HeapAlloc( GetProcessHeap(), 0, strlen(libname)+1 ))) return FALSE;
502 strcpy( tmp, libname );
503 for (p = tmp; *p; p++) if (*p == '/') *p = '\\';
505 else tmp = (char *)libname;
507 if (!FILE_strncasecmp( filename, tmp, len ) && tmp[len] == '\\')
509 strcpy( filename, tmp );
512 if (tmp != libname) HeapFree( GetProcessHeap(), 0, tmp );
513 if (!ret) return FALSE;
517 if (strlen(libname) >= size - len - 1) return FALSE;
518 filename[len] = '\\';
519 strcpy( filename+len+1, libname );
522 /* if the filename doesn't have an extension, append the default */
523 if (!(p = strrchr( filename, '.')) || strchr( p, '/' ) || strchr( p, '\\'))
525 if (strlen(filename) + strlen(ext) >= size) return FALSE;
526 strcat( filename, ext );
532 /***************************************************************************
533 * MODULE_GetLoadOrder (internal)
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.
540 void MODULE_GetLoadOrder( enum loadorder_type loadorder[], const char *path, BOOL win32 )
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};
549 static HKEY std_key = (HKEY)-1; /* key to standard section, cached */
551 char *module, *basename;
554 TRACE("looking for %s\n", path);
556 loadorder[0] = LOADORDER_INVALID; /* in case something bad happens below */
558 /* Strip path information if the module resides in the system directory
559 * (path is already stripped by caller for 16-bit modules)
563 char sysdir[MAX_PATH+1];
564 if (!GetSystemDirectoryA( sysdir, MAX_PATH )) return;
565 if (!FILE_strncasecmp( sysdir, path, strlen (sysdir) ))
567 path += strlen(sysdir);
568 while (*path == '\\' || *path == '/') path++;
572 if (!(len = strlen(path))) return;
573 if (!(module = HeapAlloc( GetProcessHeap(), 0, len + 2 ))) return;
574 strcpy( module+1, path ); /* reserve module[0] for the wildcard char */
578 char *ext = module + 1 + len - 4;
579 if (!FILE_strcasecmp( ext, ".dll" )) *ext = 0;
582 /* check command-line first */
583 if (get_list_load_order( module+1, &cmdline_list, loadorder ))
585 TRACE( "got cmdline %s for %s\n",
586 debugstr_loadorder(loadorder), debugstr_a(path) );
590 /* then explicit module name in AppDefaults */
591 app_key = open_app_key( module+1 );
592 if (app_key && get_registry_value( app_key, module+1, loadorder ))
594 TRACE( "got app defaults %s for %s\n",
595 debugstr_loadorder(loadorder), debugstr_a(path) );
599 /* then explicit module name in standard section */
600 if (std_key == (HKEY)-1)
602 OBJECT_ATTRIBUTES attr;
603 UNICODE_STRING nameW;
605 attr.Length = sizeof(attr);
606 attr.RootDirectory = 0;
607 attr.ObjectName = &nameW;
609 attr.SecurityDescriptor = NULL;
610 attr.SecurityQualityOfService = NULL;
611 RtlInitUnicodeString( &nameW, DllOverridesW );
613 if (NtOpenKey( &std_key, KEY_ALL_ACCESS, &attr )) std_key = 0;
616 if (std_key && get_registry_value( std_key, module+1, loadorder ))
618 TRACE( "got standard entry %s for %s\n",
619 debugstr_loadorder(loadorder), debugstr_a(path) );
623 /* then module basename preceded by '*' in AppDefaults */
624 basename = (char *)get_basename( module+1 );
626 if (app_key && get_registry_value( app_key, basename-1, loadorder ))
628 TRACE( "got app defaults basename %s for %s\n",
629 debugstr_loadorder(loadorder), debugstr_a(path) );
633 /* then module name preceded by '*' in standard section */
634 if (std_key && get_registry_value( std_key, basename-1, loadorder ))
636 TRACE( "got standard base name %s for %s\n",
637 debugstr_loadorder(loadorder), debugstr_a(path) );
641 /* then base name matching compiled-in defaults */
642 if (get_list_load_order( basename, &default_list, loadorder ))
644 TRACE( "got compiled-in default %s for %s\n",
645 debugstr_loadorder(loadorder), debugstr_a(path) );
649 if (basename == module+1)
651 /* then wildcard entry in AppDefaults (only if no explicit path) */
652 if (app_key && get_registry_value( app_key, "*", loadorder ))
654 TRACE( "got app defaults wildcard %s for %s\n",
655 debugstr_loadorder(loadorder), debugstr_a(path) );
659 /* then wildcard entry in standard section (only if no explicit path) */
660 if (std_key && get_registry_value( std_key, "*", loadorder ))
662 TRACE( "got standard wildcard %s for %s\n",
663 debugstr_loadorder(loadorder), debugstr_a(path) );
667 /* and last the hard-coded default */
668 memcpy( loadorder, default_loadorder, sizeof(default_loadorder) );
669 TRACE( "got hardcoded default %s for %s\n",
670 debugstr_loadorder(loadorder), debugstr_a(path) );
672 else /* module contains an explicit path */
674 memcpy( loadorder, default_path_loadorder, sizeof(default_path_loadorder) );
675 TRACE( "got hardcoded path default %s for %s\n",
676 debugstr_loadorder(loadorder), debugstr_a(path) );
680 if (app_key) NtClose( app_key );
681 HeapFree( GetProcessHeap(), 0, module );