4 * Copyright 1995 Alexandre Julliard
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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22 #include "wine/port.h"
29 #include <sys/types.h>
34 #define WIN32_NO_STATUS
39 #include "kernel_private.h"
42 #include "wine/exception.h"
43 #include "wine/debug.h"
44 #include "wine/unicode.h"
46 WINE_DEFAULT_DEBUG_CHANNEL(module
);
48 #define NE_FFLAGS_LIBMODULE 0x8000
50 static WCHAR
*dll_directory
; /* extra path for SetDllDirectoryW */
52 static CRITICAL_SECTION dlldir_section
;
53 static CRITICAL_SECTION_DEBUG critsect_debug
=
55 0, 0, &dlldir_section
,
56 { &critsect_debug
.ProcessLocksList
, &critsect_debug
.ProcessLocksList
},
57 0, 0, { (DWORD_PTR
)(__FILE__
": dlldir_section") }
59 static CRITICAL_SECTION dlldir_section
= { &critsect_debug
, -1, 0, 0, 0, 0 };
62 /****************************************************************************
63 * GetDllDirectoryA (KERNEL32.@)
65 DWORD WINAPI
GetDllDirectoryA( DWORD buf_len
, LPSTR buffer
)
69 RtlEnterCriticalSection( &dlldir_section
);
70 len
= dll_directory
? FILE_name_WtoA( dll_directory
, strlenW(dll_directory
), NULL
, 0 ) : 0;
71 if (buffer
&& buf_len
> len
)
73 if (dll_directory
) FILE_name_WtoA( dll_directory
, -1, buffer
, buf_len
);
78 len
++; /* for terminating null */
79 if (buffer
) *buffer
= 0;
81 RtlLeaveCriticalSection( &dlldir_section
);
86 /****************************************************************************
87 * GetDllDirectoryW (KERNEL32.@)
89 DWORD WINAPI
GetDllDirectoryW( DWORD buf_len
, LPWSTR buffer
)
93 RtlEnterCriticalSection( &dlldir_section
);
94 len
= dll_directory
? strlenW( dll_directory
) : 0;
95 if (buffer
&& buf_len
> len
)
97 if (dll_directory
) memcpy( buffer
, dll_directory
, (len
+ 1) * sizeof(WCHAR
) );
102 len
++; /* for terminating null */
103 if (buffer
) *buffer
= 0;
105 RtlLeaveCriticalSection( &dlldir_section
);
110 /****************************************************************************
111 * SetDllDirectoryA (KERNEL32.@)
113 BOOL WINAPI
SetDllDirectoryA( LPCSTR dir
)
118 if (!(dirW
= FILE_name_AtoW( dir
, TRUE
))) return FALSE
;
119 ret
= SetDllDirectoryW( dirW
);
120 HeapFree( GetProcessHeap(), 0, dirW
);
125 /****************************************************************************
126 * SetDllDirectoryW (KERNEL32.@)
128 BOOL WINAPI
SetDllDirectoryW( LPCWSTR dir
)
130 WCHAR
*newdir
= NULL
;
134 DWORD len
= (strlenW(dir
) + 1) * sizeof(WCHAR
);
135 if (!(newdir
= HeapAlloc( GetProcessHeap(), 0, len
)))
137 SetLastError( ERROR_NOT_ENOUGH_MEMORY
);
140 memcpy( newdir
, dir
, len
);
143 RtlEnterCriticalSection( &dlldir_section
);
144 HeapFree( GetProcessHeap(), 0, dll_directory
);
145 dll_directory
= newdir
;
146 RtlLeaveCriticalSection( &dlldir_section
);
151 /****************************************************************************
152 * DisableThreadLibraryCalls (KERNEL32.@)
154 * Inform the module loader that thread notifications are not required for a dll.
157 * hModule [I] Module handle to skip calls for
160 * Success: TRUE. Thread attach and detach notifications will not be sent
162 * Failure: FALSE. Use GetLastError() to determine the cause.
165 * This is typically called from the dll entry point of a dll during process
166 * attachment, for dlls that do not need to process thread notifications.
168 BOOL WINAPI
DisableThreadLibraryCalls( HMODULE hModule
)
170 NTSTATUS nts
= LdrDisableThreadCalloutsForDll( hModule
);
171 if (nts
== STATUS_SUCCESS
) return TRUE
;
173 SetLastError( RtlNtStatusToDosError( nts
) );
178 /* Check whether a file is an OS/2 or a very old Windows executable
179 * by testing on import of KERNEL.
181 * FIXME: is reading the module imports the only way of discerning
182 * old Windows binaries from OS/2 ones ? At least it seems so...
184 static DWORD
MODULE_Decide_OS2_OldWin(HANDLE hfile
, const IMAGE_DOS_HEADER
*mz
, const IMAGE_OS2_HEADER
*ne
)
186 DWORD currpos
= SetFilePointer( hfile
, 0, NULL
, SEEK_CUR
);
187 DWORD ret
= BINARY_OS216
;
188 LPWORD modtab
= NULL
;
189 LPSTR nametab
= NULL
;
193 /* read modref table */
194 if ( (SetFilePointer( hfile
, mz
->e_lfanew
+ ne
->ne_modtab
, NULL
, SEEK_SET
) == -1)
195 || (!(modtab
= HeapAlloc( GetProcessHeap(), 0, ne
->ne_cmod
*sizeof(WORD
))))
196 || (!(ReadFile(hfile
, modtab
, ne
->ne_cmod
*sizeof(WORD
), &len
, NULL
)))
197 || (len
!= ne
->ne_cmod
*sizeof(WORD
)) )
200 /* read imported names table */
201 if ( (SetFilePointer( hfile
, mz
->e_lfanew
+ ne
->ne_imptab
, NULL
, SEEK_SET
) == -1)
202 || (!(nametab
= HeapAlloc( GetProcessHeap(), 0, ne
->ne_enttab
- ne
->ne_imptab
)))
203 || (!(ReadFile(hfile
, nametab
, ne
->ne_enttab
- ne
->ne_imptab
, &len
, NULL
)))
204 || (len
!= ne
->ne_enttab
- ne
->ne_imptab
) )
207 for (i
=0; i
< ne
->ne_cmod
; i
++)
209 LPSTR module
= &nametab
[modtab
[i
]];
210 TRACE("modref: %.*s\n", module
[0], &module
[1]);
211 if (!(strncmp(&module
[1], "KERNEL", module
[0])))
212 { /* very old Windows file */
213 MESSAGE("This seems to be a very old (pre-3.0) Windows executable. Expect crashes, especially if this is a real-mode binary !\n");
220 ERR("Hmm, an error occurred. Is this binary file broken?\n");
223 HeapFree( GetProcessHeap(), 0, modtab
);
224 HeapFree( GetProcessHeap(), 0, nametab
);
225 SetFilePointer( hfile
, currpos
, NULL
, SEEK_SET
); /* restore filepos */
229 /***********************************************************************
230 * MODULE_GetBinaryType
232 void MODULE_get_binary_info( HANDLE hfile
, struct binary_info
*info
)
238 unsigned char magic
[4];
241 unsigned char version
;
242 unsigned char ignored
[9];
244 unsigned short machine
;
249 unsigned int cputype
;
250 unsigned int cpusubtype
;
251 unsigned int filetype
;
258 memset( info
, 0, sizeof(*info
) );
260 /* Seek to the start of the file and read the header information. */
261 if (SetFilePointer( hfile
, 0, NULL
, SEEK_SET
) == -1) return;
262 if (!ReadFile( hfile
, &header
, sizeof(header
), &len
, NULL
) || len
!= sizeof(header
)) return;
264 if (!memcmp( header
.elf
.magic
, "\177ELF", 4 ))
266 if (header
.elf
.class == 2) info
->flags
|= BINARY_FLAG_64BIT
;
267 /* FIXME: we don't bother to check byte order, architecture, etc. */
268 switch(header
.elf
.type
)
270 case 2: info
->type
= BINARY_UNIX_EXE
; break;
271 case 3: info
->type
= BINARY_UNIX_LIB
; break;
274 /* Mach-o File with Endian set to Big Endian or Little Endian */
275 else if (header
.macho
.magic
== 0xfeedface || header
.macho
.magic
== 0xcefaedfe)
277 if ((header
.macho
.cputype
>> 24) == 1) info
->flags
|= BINARY_FLAG_64BIT
;
278 switch(header
.macho
.filetype
)
280 case 2: info
->type
= BINARY_UNIX_EXE
; break;
281 case 8: info
->type
= BINARY_UNIX_LIB
; break;
284 /* Not ELF, try DOS */
285 else if (header
.mz
.e_magic
== IMAGE_DOS_SIGNATURE
)
289 IMAGE_OS2_HEADER os2
;
290 IMAGE_NT_HEADERS32 nt
;
293 /* We do have a DOS image so we will now try to seek into
294 * the file by the amount indicated by the field
295 * "Offset to extended header" and read in the
296 * "magic" field information at that location.
297 * This will tell us if there is more header information
300 info
->type
= BINARY_DOS
;
301 if (SetFilePointer( hfile
, header
.mz
.e_lfanew
, NULL
, SEEK_SET
) == -1) return;
302 if (!ReadFile( hfile
, &ext_header
, sizeof(ext_header
), &len
, NULL
) || len
< 4) return;
304 /* Reading the magic field succeeded so
305 * we will try to determine what type it is.
307 if (!memcmp( &ext_header
.nt
.Signature
, "PE\0\0", 4 ))
309 if (len
>= sizeof(ext_header
.nt
.FileHeader
))
311 info
->type
= BINARY_PE
;
312 if (ext_header
.nt
.FileHeader
.Characteristics
& IMAGE_FILE_DLL
)
313 info
->flags
|= BINARY_FLAG_DLL
;
314 if (len
< sizeof(ext_header
.nt
)) /* clear remaining part of header if missing */
315 memset( (char *)&ext_header
.nt
+ len
, 0, sizeof(ext_header
.nt
) - len
);
316 switch (ext_header
.nt
.OptionalHeader
.Magic
)
318 case IMAGE_NT_OPTIONAL_HDR32_MAGIC
:
319 info
->res_start
= (void *)(ULONG_PTR
)ext_header
.nt
.OptionalHeader
.ImageBase
;
320 info
->res_end
= (void *)((ULONG_PTR
)ext_header
.nt
.OptionalHeader
.ImageBase
+
321 ext_header
.nt
.OptionalHeader
.SizeOfImage
);
323 case IMAGE_NT_OPTIONAL_HDR64_MAGIC
:
324 info
->flags
|= BINARY_FLAG_64BIT
;
329 else if (!memcmp( &ext_header
.os2
.ne_magic
, "NE", 2 ))
331 /* This is a Windows executable (NE) header. This can
332 * mean either a 16-bit OS/2 or a 16-bit Windows or even a
333 * DOS program (running under a DOS extender). To decide
334 * which, we'll have to read the NE header.
336 if (len
>= sizeof(ext_header
.os2
))
338 if (ext_header
.os2
.ne_flags
& NE_FFLAGS_LIBMODULE
) info
->flags
|= BINARY_FLAG_DLL
;
339 switch ( ext_header
.os2
.ne_exetyp
)
341 case 1: info
->type
= BINARY_OS216
; break; /* OS/2 */
342 case 2: info
->type
= BINARY_WIN16
; break; /* Windows */
343 case 3: info
->type
= BINARY_DOS
; break; /* European MS-DOS 4.x */
344 case 4: info
->type
= BINARY_WIN16
; break; /* Windows 386; FIXME: is this 32bit??? */
345 case 5: info
->type
= BINARY_DOS
; break; /* BOSS, Borland Operating System Services */
346 /* other types, e.g. 0 is: "unknown" */
347 default: info
->type
= MODULE_Decide_OS2_OldWin(hfile
, &header
.mz
, &ext_header
.os2
); break;
354 /***********************************************************************
355 * GetBinaryTypeW [KERNEL32.@]
357 * Determine whether a file is executable, and if so, what kind.
360 * lpApplicationName [I] Path of the file to check
361 * lpBinaryType [O] Destination for the binary type
364 * TRUE, if the file is an executable, in which case lpBinaryType is set.
365 * FALSE, if the file is not an executable or if the function fails.
368 * The type of executable is a property that determines which subsystem an
369 * executable file runs under. lpBinaryType can be set to one of the following
371 * SCS_32BIT_BINARY: A Win32 based application
372 * SCS_64BIT_BINARY: A Win64 based application
373 * SCS_DOS_BINARY: An MS-Dos based application
374 * SCS_WOW_BINARY: A Win16 based application
375 * SCS_PIF_BINARY: A PIF file that executes an MS-Dos based app
376 * SCS_POSIX_BINARY: A POSIX based application ( Not implemented )
377 * SCS_OS216_BINARY: A 16bit OS/2 based application
379 * To find the binary type, this function reads in the files header information.
380 * If extended header information is not present it will assume that the file
381 * is a DOS executable. If extended header information is present it will
382 * determine if the file is a 16, 32 or 64 bit Windows executable by checking the
383 * flags in the header.
385 * ".com" and ".pif" files are only recognized by their file name extension,
386 * as per native Windows.
388 BOOL WINAPI
GetBinaryTypeW( LPCWSTR lpApplicationName
, LPDWORD lpBinaryType
)
392 struct binary_info binary_info
;
394 TRACE("%s\n", debugstr_w(lpApplicationName
) );
398 if ( lpApplicationName
== NULL
|| lpBinaryType
== NULL
)
401 /* Open the file indicated by lpApplicationName for reading.
403 hfile
= CreateFileW( lpApplicationName
, GENERIC_READ
, FILE_SHARE_READ
,
404 NULL
, OPEN_EXISTING
, 0, 0 );
405 if ( hfile
== INVALID_HANDLE_VALUE
)
410 MODULE_get_binary_info( hfile
, &binary_info
);
411 switch (binary_info
.type
)
415 static const WCHAR comW
[] = { '.','C','O','M',0 };
416 static const WCHAR pifW
[] = { '.','P','I','F',0 };
419 /* try to determine from file name */
420 ptr
= strrchrW( lpApplicationName
, '.' );
422 if (!strcmpiW( ptr
, comW
))
424 *lpBinaryType
= SCS_DOS_BINARY
;
427 else if (!strcmpiW( ptr
, pifW
))
429 *lpBinaryType
= SCS_PIF_BINARY
;
435 *lpBinaryType
= (binary_info
.flags
& BINARY_FLAG_64BIT
) ? SCS_64BIT_BINARY
: SCS_32BIT_BINARY
;
439 *lpBinaryType
= SCS_WOW_BINARY
;
443 *lpBinaryType
= SCS_OS216_BINARY
;
447 *lpBinaryType
= SCS_DOS_BINARY
;
450 case BINARY_UNIX_EXE
:
451 case BINARY_UNIX_LIB
:
456 CloseHandle( hfile
);
460 /***********************************************************************
461 * GetBinaryTypeA [KERNEL32.@]
462 * GetBinaryType [KERNEL32.@]
464 * See GetBinaryTypeW.
466 BOOL WINAPI
GetBinaryTypeA( LPCSTR lpApplicationName
, LPDWORD lpBinaryType
)
468 ANSI_STRING app_nameA
;
471 TRACE("%s\n", debugstr_a(lpApplicationName
));
475 if ( lpApplicationName
== NULL
|| lpBinaryType
== NULL
)
478 RtlInitAnsiString(&app_nameA
, lpApplicationName
);
479 status
= RtlAnsiStringToUnicodeString(&NtCurrentTeb()->StaticUnicodeString
,
482 return GetBinaryTypeW(NtCurrentTeb()->StaticUnicodeString
.Buffer
, lpBinaryType
);
484 SetLastError(RtlNtStatusToDosError(status
));
488 /***********************************************************************
489 * GetModuleHandleExA (KERNEL32.@)
491 BOOL WINAPI
GetModuleHandleExA( DWORD flags
, LPCSTR name
, HMODULE
*module
)
495 if (!name
|| (flags
& GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS
))
496 return GetModuleHandleExW( flags
, (LPCWSTR
)name
, module
);
498 if (!(nameW
= FILE_name_AtoW( name
, FALSE
))) return FALSE
;
499 return GetModuleHandleExW( flags
, nameW
, module
);
502 /***********************************************************************
503 * GetModuleHandleExW (KERNEL32.@)
505 BOOL WINAPI
GetModuleHandleExW( DWORD flags
, LPCWSTR name
, HMODULE
*module
)
507 NTSTATUS status
= STATUS_SUCCESS
;
514 SetLastError( ERROR_INVALID_PARAMETER
);
518 /* if we are messing with the refcount, grab the loader lock */
519 lock
= (flags
& GET_MODULE_HANDLE_EX_FLAG_PIN
) || !(flags
& GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT
);
521 LdrLockLoaderLock( 0, NULL
, &magic
);
525 ret
= NtCurrentTeb()->Peb
->ImageBaseAddress
;
527 else if (flags
& GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS
)
530 if (!(ret
= RtlPcToFileHeader( (void *)name
, &dummy
))) status
= STATUS_DLL_NOT_FOUND
;
535 RtlInitUnicodeString( &wstr
, name
);
536 status
= LdrGetDllHandle( NULL
, 0, &wstr
, &ret
);
539 if (status
== STATUS_SUCCESS
)
541 if (flags
& GET_MODULE_HANDLE_EX_FLAG_PIN
)
542 LdrAddRefDll( LDR_ADDREF_DLL_PIN
, ret
);
543 else if (!(flags
& GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT
))
544 LdrAddRefDll( 0, ret
);
546 else SetLastError( RtlNtStatusToDosError( status
) );
549 LdrUnlockLoaderLock( 0, magic
);
551 if (status
== STATUS_SUCCESS
) *module
= ret
;
554 return (status
== STATUS_SUCCESS
);
557 /***********************************************************************
558 * GetModuleHandleA (KERNEL32.@)
560 * Get the handle of a dll loaded into the process address space.
563 * module [I] Name of the dll
566 * Success: A handle to the loaded dll.
567 * Failure: A NULL handle. Use GetLastError() to determine the cause.
569 HMODULE WINAPI DECLSPEC_HOTPATCH
GetModuleHandleA(LPCSTR module
)
573 GetModuleHandleExA( GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT
, module
, &ret
);
577 /***********************************************************************
578 * GetModuleHandleW (KERNEL32.@)
580 * Unicode version of GetModuleHandleA.
582 HMODULE WINAPI
GetModuleHandleW(LPCWSTR module
)
586 GetModuleHandleExW( GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT
, module
, &ret
);
591 /***********************************************************************
592 * GetModuleFileNameA (KERNEL32.@)
594 * Get the file name of a loaded module from its handle.
597 * Success: The length of the file name, excluding the terminating NUL.
598 * Failure: 0. Use GetLastError() to determine the cause.
601 * This function always returns the long path of hModule
602 * The function doesn't write a terminating '\0' if the buffer is too
605 DWORD WINAPI
GetModuleFileNameA(
606 HMODULE hModule
, /* [in] Module handle (32 bit) */
607 LPSTR lpFileName
, /* [out] Destination for file name */
608 DWORD size
) /* [in] Size of lpFileName in characters */
610 LPWSTR filenameW
= HeapAlloc( GetProcessHeap(), 0, size
* sizeof(WCHAR
) );
615 SetLastError( ERROR_NOT_ENOUGH_MEMORY
);
618 if ((len
= GetModuleFileNameW( hModule
, filenameW
, size
)))
620 len
= FILE_name_WtoA( filenameW
, len
, lpFileName
, size
);
622 lpFileName
[len
] = '\0';
624 SetLastError( ERROR_INSUFFICIENT_BUFFER
);
626 HeapFree( GetProcessHeap(), 0, filenameW
);
630 /***********************************************************************
631 * GetModuleFileNameW (KERNEL32.@)
633 * Unicode version of GetModuleFileNameA.
635 DWORD WINAPI
GetModuleFileNameW( HMODULE hModule
, LPWSTR lpFileName
, DWORD size
)
637 ULONG magic
, len
= 0;
640 WIN16_SUBSYSTEM_TIB
*win16_tib
;
642 if (!hModule
&& ((win16_tib
= NtCurrentTeb()->Tib
.SubSystemTib
)) && win16_tib
->exe_name
)
644 len
= min(size
, win16_tib
->exe_name
->Length
/ sizeof(WCHAR
));
645 memcpy( lpFileName
, win16_tib
->exe_name
->Buffer
, len
* sizeof(WCHAR
) );
646 if (len
< size
) lpFileName
[len
] = '\0';
650 LdrLockLoaderLock( 0, NULL
, &magic
);
652 if (!hModule
) hModule
= NtCurrentTeb()->Peb
->ImageBaseAddress
;
653 nts
= LdrFindEntryForAddress( hModule
, &pldr
);
654 if (nts
== STATUS_SUCCESS
)
656 len
= min(size
, pldr
->FullDllName
.Length
/ sizeof(WCHAR
));
657 memcpy(lpFileName
, pldr
->FullDllName
.Buffer
, len
* sizeof(WCHAR
));
660 lpFileName
[len
] = '\0';
664 SetLastError( ERROR_INSUFFICIENT_BUFFER
);
666 else SetLastError( RtlNtStatusToDosError( nts
) );
668 LdrUnlockLoaderLock( 0, magic
);
670 TRACE( "%s\n", debugstr_wn(lpFileName
, len
) );
675 /***********************************************************************
676 * get_dll_system_path
678 static const WCHAR
*get_dll_system_path(void)
680 static WCHAR
*cached_path
;
687 len
+= 2 * GetSystemDirectoryW( NULL
, 0 );
688 len
+= GetWindowsDirectoryW( NULL
, 0 );
689 p
= path
= HeapAlloc( GetProcessHeap(), 0, len
* sizeof(WCHAR
) );
692 GetSystemDirectoryW( p
, path
+ len
- p
);
694 /* if system directory ends in "32" add 16-bit version too */
695 if (p
[-2] == '3' && p
[-1] == '2')
698 GetSystemDirectoryW( p
, path
+ len
- p
);
702 GetWindowsDirectoryW( p
, path
+ len
- p
);
708 /******************************************************************
709 * get_module_path_end
711 * Returns the end of the directory component of the module path.
713 static inline const WCHAR
*get_module_path_end(const WCHAR
*module
)
716 const WCHAR
*mod_end
= module
;
717 if (!module
) return mod_end
;
719 if ((p
= strrchrW( mod_end
, '\\' ))) mod_end
= p
;
720 if ((p
= strrchrW( mod_end
, '/' ))) mod_end
= p
;
721 if (mod_end
== module
+ 2 && module
[1] == ':') mod_end
++;
722 if (mod_end
== module
&& module
[0] && module
[1] == ':') mod_end
+= 2;
727 /******************************************************************
728 * MODULE_get_dll_load_path
730 * Compute the load path to use for a given dll.
731 * Returned pointer must be freed by caller.
733 WCHAR
*MODULE_get_dll_load_path( LPCWSTR module
)
735 static const WCHAR pathW
[] = {'P','A','T','H',0};
737 const WCHAR
*system_path
= get_dll_system_path();
738 const WCHAR
*mod_end
= NULL
;
739 UNICODE_STRING name
, value
;
741 int len
= 0, path_len
= 0;
743 /* adjust length for module name */
746 mod_end
= get_module_path_end( module
);
747 /* if module is NULL or doesn't contain a path, fall back to directory
748 * process was loaded from */
749 if (module
== mod_end
)
751 module
= NtCurrentTeb()->Peb
->ProcessParameters
->ImagePathName
.Buffer
;
752 mod_end
= get_module_path_end( module
);
754 len
+= (mod_end
- module
) + 1;
756 len
+= strlenW( system_path
) + 2;
758 /* get the PATH variable */
760 RtlInitUnicodeString( &name
, pathW
);
762 value
.MaximumLength
= 0;
764 if (RtlQueryEnvironmentVariable_U( NULL
, &name
, &value
) == STATUS_BUFFER_TOO_SMALL
)
765 path_len
= value
.Length
;
767 RtlEnterCriticalSection( &dlldir_section
);
768 if (dll_directory
) len
+= strlenW(dll_directory
) + 1;
769 if ((p
= ret
= HeapAlloc( GetProcessHeap(), 0, path_len
+ len
* sizeof(WCHAR
) )))
773 memcpy( ret
, module
, (mod_end
- module
) * sizeof(WCHAR
) );
774 p
+= (mod_end
- module
);
779 strcpyW( p
, dll_directory
);
784 RtlLeaveCriticalSection( &dlldir_section
);
785 if (!ret
) return NULL
;
787 strcpyW( p
, system_path
);
791 value
.MaximumLength
= path_len
;
793 while (RtlQueryEnvironmentVariable_U( NULL
, &name
, &value
) == STATUS_BUFFER_TOO_SMALL
)
797 /* grow the buffer and retry */
798 path_len
= value
.Length
;
799 if (!(new_ptr
= HeapReAlloc( GetProcessHeap(), 0, ret
, path_len
+ len
* sizeof(WCHAR
) )))
801 HeapFree( GetProcessHeap(), 0, ret
);
804 value
.Buffer
= new_ptr
+ (value
.Buffer
- ret
);
805 value
.MaximumLength
= path_len
;
808 value
.Buffer
[value
.Length
/ sizeof(WCHAR
)] = 0;
813 /******************************************************************
814 * load_library_as_datafile
816 static BOOL
load_library_as_datafile( LPCWSTR name
, HMODULE
* hmod
)
818 static const WCHAR dotDLL
[] = {'.','d','l','l',0};
820 WCHAR filenameW
[MAX_PATH
];
821 HANDLE hFile
= INVALID_HANDLE_VALUE
;
827 if (SearchPathW( NULL
, name
, dotDLL
, sizeof(filenameW
) / sizeof(filenameW
[0]),
830 hFile
= CreateFileW( filenameW
, GENERIC_READ
, FILE_SHARE_READ
,
831 NULL
, OPEN_EXISTING
, 0, 0 );
833 if (hFile
== INVALID_HANDLE_VALUE
) return FALSE
;
835 mapping
= CreateFileMappingW( hFile
, NULL
, PAGE_READONLY
, 0, 0, NULL
);
836 CloseHandle( hFile
);
837 if (!mapping
) return FALSE
;
839 module
= MapViewOfFile( mapping
, FILE_MAP_READ
, 0, 0, 0 );
840 CloseHandle( mapping
);
841 if (!module
) return FALSE
;
843 /* make sure it's a valid PE file */
844 if (!RtlImageNtHeader(module
))
846 UnmapViewOfFile( module
);
849 *hmod
= (HMODULE
)((char *)module
+ 1); /* set low bit of handle to indicate datafile module */
854 /******************************************************************
857 * Helper for LoadLibraryExA/W.
859 static HMODULE
load_library( const UNICODE_STRING
*libname
, DWORD flags
)
864 static const DWORD unsupported_flags
=
865 LOAD_IGNORE_CODE_AUTHZ_LEVEL
|
866 LOAD_LIBRARY_AS_IMAGE_RESOURCE
|
867 LOAD_LIBRARY_AS_DATAFILE_EXCLUSIVE
|
868 LOAD_LIBRARY_REQUIRE_SIGNED_TARGET
;
870 if( flags
& unsupported_flags
)
871 FIXME("unsupported flag(s) used (flags: 0x%08x)\n", flags
);
873 load_path
= MODULE_get_dll_load_path( flags
& LOAD_WITH_ALTERED_SEARCH_PATH
? libname
->Buffer
: NULL
);
875 if (flags
& LOAD_LIBRARY_AS_DATAFILE
)
879 LdrLockLoaderLock( 0, NULL
, &magic
);
880 if (!LdrGetDllHandle( load_path
, flags
, libname
, &hModule
))
882 LdrAddRefDll( 0, hModule
);
883 LdrUnlockLoaderLock( 0, magic
);
886 LdrUnlockLoaderLock( 0, magic
);
888 /* The method in load_library_as_datafile allows searching for the
889 * 'native' libraries only
891 if (load_library_as_datafile( libname
->Buffer
, &hModule
)) goto done
;
892 flags
|= DONT_RESOLVE_DLL_REFERENCES
; /* Just in case */
893 /* Fallback to normal behaviour */
896 nts
= LdrLoadDll( load_path
, flags
, libname
, &hModule
);
897 if (nts
!= STATUS_SUCCESS
)
900 SetLastError( RtlNtStatusToDosError( nts
) );
903 HeapFree( GetProcessHeap(), 0, load_path
);
908 /******************************************************************
909 * LoadLibraryExA (KERNEL32.@)
911 * Load a dll file into the process address space.
914 * libname [I] Name of the file to load
915 * hfile [I] Reserved, must be 0.
916 * flags [I] Flags for loading the dll
919 * Success: A handle to the loaded dll.
920 * Failure: A NULL handle. Use GetLastError() to determine the cause.
923 * The HFILE parameter is not used and marked reserved in the SDK. I can
924 * only guess that it should force a file to be mapped, but I rather
925 * ignore the parameter because it would be extremely difficult to
926 * integrate this with different types of module representations.
928 HMODULE WINAPI DECLSPEC_HOTPATCH
LoadLibraryExA(LPCSTR libname
, HANDLE hfile
, DWORD flags
)
932 if (!(libnameW
= FILE_name_AtoW( libname
, FALSE
))) return 0;
933 return LoadLibraryExW( libnameW
, hfile
, flags
);
936 /***********************************************************************
937 * LoadLibraryExW (KERNEL32.@)
939 * Unicode version of LoadLibraryExA.
941 HMODULE WINAPI DECLSPEC_HOTPATCH
LoadLibraryExW(LPCWSTR libnameW
, HANDLE hfile
, DWORD flags
)
948 SetLastError(ERROR_INVALID_PARAMETER
);
951 RtlInitUnicodeString( &wstr
, libnameW
);
952 if (wstr
.Buffer
[wstr
.Length
/sizeof(WCHAR
) - 1] != ' ')
953 return load_library( &wstr
, flags
);
955 /* Library name has trailing spaces */
956 RtlCreateUnicodeString( &wstr
, libnameW
);
957 while (wstr
.Length
> sizeof(WCHAR
) &&
958 wstr
.Buffer
[wstr
.Length
/sizeof(WCHAR
) - 1] == ' ')
960 wstr
.Length
-= sizeof(WCHAR
);
962 wstr
.Buffer
[wstr
.Length
/sizeof(WCHAR
)] = '\0';
963 res
= load_library( &wstr
, flags
);
964 RtlFreeUnicodeString( &wstr
);
968 /***********************************************************************
969 * LoadLibraryA (KERNEL32.@)
971 * Load a dll file into the process address space.
974 * libname [I] Name of the file to load
977 * Success: A handle to the loaded dll.
978 * Failure: A NULL handle. Use GetLastError() to determine the cause.
981 * See LoadLibraryExA().
983 HMODULE WINAPI DECLSPEC_HOTPATCH
LoadLibraryA(LPCSTR libname
)
985 return LoadLibraryExA(libname
, 0, 0);
988 /***********************************************************************
989 * LoadLibraryW (KERNEL32.@)
991 * Unicode version of LoadLibraryA.
993 HMODULE WINAPI DECLSPEC_HOTPATCH
LoadLibraryW(LPCWSTR libnameW
)
995 return LoadLibraryExW(libnameW
, 0, 0);
998 /***********************************************************************
999 * FreeLibrary (KERNEL32.@)
1001 * Free a dll loaded into the process address space.
1004 * hLibModule [I] Handle to the dll returned by LoadLibraryA().
1007 * Success: TRUE. The dll is removed if it is not still in use.
1008 * Failure: FALSE. Use GetLastError() to determine the cause.
1010 BOOL WINAPI DECLSPEC_HOTPATCH
FreeLibrary(HINSTANCE hLibModule
)
1017 SetLastError( ERROR_INVALID_HANDLE
);
1021 if ((ULONG_PTR
)hLibModule
& 1)
1023 /* this is a LOAD_LIBRARY_AS_DATAFILE module */
1024 char *ptr
= (char *)hLibModule
- 1;
1025 return UnmapViewOfFile( ptr
);
1028 if ((nts
= LdrUnloadDll( hLibModule
)) == STATUS_SUCCESS
) retv
= TRUE
;
1029 else SetLastError( RtlNtStatusToDosError( nts
) );
1034 /***********************************************************************
1035 * GetProcAddress (KERNEL32.@)
1037 * Find the address of an exported symbol in a loaded dll.
1040 * hModule [I] Handle to the dll returned by LoadLibraryA().
1041 * function [I] Name of the symbol, or an integer ordinal number < 16384
1044 * Success: A pointer to the symbol in the process address space.
1045 * Failure: NULL. Use GetLastError() to determine the cause.
1047 FARPROC WINAPI
GetProcAddress( HMODULE hModule
, LPCSTR function
)
1052 if (!hModule
) hModule
= NtCurrentTeb()->Peb
->ImageBaseAddress
;
1054 if ((ULONG_PTR
)function
>> 16)
1058 RtlInitAnsiString( &str
, function
);
1059 nts
= LdrGetProcedureAddress( hModule
, &str
, 0, (void**)&fp
);
1062 nts
= LdrGetProcedureAddress( hModule
, NULL
, LOWORD(function
), (void**)&fp
);
1063 if (nts
!= STATUS_SUCCESS
)
1065 SetLastError( RtlNtStatusToDosError( nts
) );
1071 /***********************************************************************
1072 * DelayLoadFailureHook (KERNEL32.@)
1074 FARPROC WINAPI
DelayLoadFailureHook( LPCSTR name
, LPCSTR function
)
1078 if ((ULONG_PTR
)function
>> 16)
1079 ERR( "failed to delay load %s.%s\n", name
, function
);
1081 ERR( "failed to delay load %s.%u\n", name
, LOWORD(function
) );
1082 args
[0] = (ULONG_PTR
)name
;
1083 args
[1] = (ULONG_PTR
)function
;
1084 RaiseException( EXCEPTION_WINE_STUB
, EH_NONCONTINUABLE
, 2, args
);
1090 PLIST_ENTRY head
, current
;
1091 LDR_MODULE ldr_module
;
1094 static BOOL
init_module_iterator(MODULE_ITERATOR
*iter
, HANDLE process
)
1096 PROCESS_BASIC_INFORMATION pbi
;
1097 PPEB_LDR_DATA ldr_data
;
1100 /* Get address of PEB */
1101 status
= NtQueryInformationProcess(process
, ProcessBasicInformation
,
1102 &pbi
, sizeof(pbi
), NULL
);
1103 if (status
!= STATUS_SUCCESS
)
1105 SetLastError(RtlNtStatusToDosError(status
));
1109 /* Read address of LdrData from PEB */
1110 if (!ReadProcessMemory(process
, &pbi
.PebBaseAddress
->LdrData
,
1111 &ldr_data
, sizeof(ldr_data
), NULL
))
1114 /* Read address of first module from LdrData */
1115 if (!ReadProcessMemory(process
,
1116 &ldr_data
->InLoadOrderModuleList
.Flink
,
1117 &iter
->current
, sizeof(iter
->current
), NULL
))
1120 iter
->head
= &ldr_data
->InLoadOrderModuleList
;
1121 iter
->process
= process
;
1126 static int module_iterator_next(MODULE_ITERATOR
*iter
)
1128 if (iter
->current
== iter
->head
)
1131 if (!ReadProcessMemory(iter
->process
,
1132 CONTAINING_RECORD(iter
->current
, LDR_MODULE
, InLoadOrderModuleList
),
1133 &iter
->ldr_module
, sizeof(iter
->ldr_module
), NULL
))
1136 iter
->current
= iter
->ldr_module
.InLoadOrderModuleList
.Flink
;
1140 static BOOL
get_ldr_module(HANDLE process
, HMODULE module
, LDR_MODULE
*ldr_module
)
1142 MODULE_ITERATOR iter
;
1145 if (!init_module_iterator(&iter
, process
))
1148 while ((ret
= module_iterator_next(&iter
)) > 0)
1149 /* When hModule is NULL we return the process image - which will be
1150 * the first module since our iterator uses InLoadOrderModuleList */
1151 if (!module
|| module
== iter
.ldr_module
.BaseAddress
)
1153 *ldr_module
= iter
.ldr_module
;
1158 SetLastError(ERROR_INVALID_HANDLE
);
1163 /***********************************************************************
1164 * K32EnumProcessModules (KERNEL32.@)
1167 * Returned list is in load order.
1169 BOOL WINAPI
K32EnumProcessModules(HANDLE process
, HMODULE
*lphModule
,
1170 DWORD cb
, DWORD
*needed
)
1172 MODULE_ITERATOR iter
;
1175 if (!init_module_iterator(&iter
, process
))
1180 SetLastError(ERROR_NOACCESS
);
1186 while ((ret
= module_iterator_next(&iter
)) > 0)
1188 if (cb
>= sizeof(HMODULE
))
1190 *lphModule
++ = iter
.ldr_module
.BaseAddress
;
1191 cb
-= sizeof(HMODULE
);
1193 *needed
+= sizeof(HMODULE
);
1199 /***********************************************************************
1200 * K32GetModuleBaseNameW (KERNEL32.@)
1202 DWORD WINAPI
K32GetModuleBaseNameW(HANDLE process
, HMODULE module
,
1203 LPWSTR base_name
, DWORD size
)
1205 LDR_MODULE ldr_module
;
1207 if (!get_ldr_module(process
, module
, &ldr_module
))
1210 size
= min(ldr_module
.BaseDllName
.Length
/ sizeof(WCHAR
), size
);
1211 if (!ReadProcessMemory(process
, ldr_module
.BaseDllName
.Buffer
,
1212 base_name
, size
* sizeof(WCHAR
), NULL
))
1215 base_name
[size
] = 0;
1219 /***********************************************************************
1220 * K32GetModuleBaseNameA (KERNEL32.@)
1222 DWORD WINAPI
K32GetModuleBaseNameA(HANDLE process
, HMODULE module
,
1223 LPSTR base_name
, DWORD size
)
1228 if(!base_name
|| !size
) {
1229 SetLastError(ERROR_INVALID_PARAMETER
);
1233 base_name_w
= HeapAlloc(GetProcessHeap(), 0, sizeof(WCHAR
) * size
);
1237 len
= K32GetModuleBaseNameW(process
, module
, base_name_w
, size
);
1238 TRACE("%d, %s\n", len
, debugstr_w(base_name_w
));
1241 ret
= WideCharToMultiByte(CP_ACP
, 0, base_name_w
, len
,
1242 base_name
, size
, NULL
, NULL
);
1243 if (ret
< size
) base_name
[ret
] = 0;
1245 HeapFree(GetProcessHeap(), 0, base_name_w
);
1249 /***********************************************************************
1250 * K32GetModuleFileNameExW (KERNEL32.@)
1252 DWORD WINAPI
K32GetModuleFileNameExW(HANDLE process
, HMODULE module
,
1253 LPWSTR file_name
, DWORD size
)
1255 LDR_MODULE ldr_module
;
1258 if (!size
) return 0;
1260 if(!get_ldr_module(process
, module
, &ldr_module
))
1263 len
= ldr_module
.FullDllName
.Length
/ sizeof(WCHAR
);
1264 if (!ReadProcessMemory(process
, ldr_module
.FullDllName
.Buffer
,
1265 file_name
, min( len
, size
) * sizeof(WCHAR
), NULL
))
1275 file_name
[size
- 1] = 0;
1280 /***********************************************************************
1281 * K32GetModuleFileNameExA (KERNEL32.@)
1283 DWORD WINAPI
K32GetModuleFileNameExA(HANDLE process
, HMODULE module
,
1284 LPSTR file_name
, DWORD size
)
1289 TRACE("(hProcess=%p, hModule=%p, %p, %d)\n", process
, module
, file_name
, size
);
1291 if (!file_name
|| !size
)
1293 SetLastError( ERROR_INVALID_PARAMETER
);
1297 if ( process
== GetCurrentProcess() )
1299 len
= GetModuleFileNameA( module
, file_name
, size
);
1300 if (size
) file_name
[size
- 1] = '\0';
1304 if (!(ptr
= HeapAlloc(GetProcessHeap(), 0, size
* sizeof(WCHAR
)))) return 0;
1306 len
= K32GetModuleFileNameExW(process
, module
, ptr
, size
);
1309 file_name
[0] = '\0';
1313 if (!WideCharToMultiByte( CP_ACP
, 0, ptr
, -1, file_name
, size
, NULL
, NULL
))
1315 file_name
[size
- 1] = 0;
1318 else if (len
< size
) len
= strlen( file_name
);
1321 HeapFree(GetProcessHeap(), 0, ptr
);
1325 /***********************************************************************
1326 * K32GetModuleInformation (KERNEL32.@)
1328 BOOL WINAPI
K32GetModuleInformation(HANDLE process
, HMODULE module
,
1329 MODULEINFO
*modinfo
, DWORD cb
)
1331 LDR_MODULE ldr_module
;
1333 if (cb
< sizeof(MODULEINFO
))
1335 SetLastError(ERROR_INSUFFICIENT_BUFFER
);
1339 if (!get_ldr_module(process
, module
, &ldr_module
))
1342 modinfo
->lpBaseOfDll
= ldr_module
.BaseAddress
;
1343 modinfo
->SizeOfImage
= ldr_module
.SizeOfImage
;
1344 modinfo
->EntryPoint
= ldr_module
.EntryPoint
;
1350 /***********************************************************************
1351 * __wine_dll_register_16 (KERNEL32.@)
1355 void __wine_dll_register_16( const IMAGE_DOS_HEADER
*header
, const char *file_name
)
1357 ERR( "loading old style 16-bit dll %s no longer supported\n", file_name
);
1361 /***********************************************************************
1362 * __wine_dll_unregister_16 (KERNEL32.@)
1366 void __wine_dll_unregister_16( const IMAGE_DOS_HEADER
*header
)