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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #include "wine/port.h"
28 #include <sys/types.h>
33 #define WIN32_NO_STATUS
34 #include "wine/winbase16.h"
41 #include "kernel_private.h"
43 #include "wine/exception.h"
44 #include "wine/debug.h"
45 #include "wine/unicode.h"
46 #include "wine/server.h"
48 WINE_DEFAULT_DEBUG_CHANNEL(module
);
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 enum binary_type
MODULE_Decide_OS2_OldWin(HANDLE hfile
, const IMAGE_DOS_HEADER
*mz
,
185 const IMAGE_OS2_HEADER
*ne
)
187 DWORD currpos
= SetFilePointer( hfile
, 0, NULL
, SEEK_CUR
);
188 enum binary_type ret
= BINARY_OS216
;
189 LPWORD modtab
= NULL
;
190 LPSTR nametab
= NULL
;
194 /* read modref table */
195 if ( (SetFilePointer( hfile
, mz
->e_lfanew
+ ne
->ne_modtab
, NULL
, SEEK_SET
) == -1)
196 || (!(modtab
= HeapAlloc( GetProcessHeap(), 0, ne
->ne_cmod
*sizeof(WORD
))))
197 || (!(ReadFile(hfile
, modtab
, ne
->ne_cmod
*sizeof(WORD
), &len
, NULL
)))
198 || (len
!= ne
->ne_cmod
*sizeof(WORD
)) )
201 /* read imported names table */
202 if ( (SetFilePointer( hfile
, mz
->e_lfanew
+ ne
->ne_imptab
, NULL
, SEEK_SET
) == -1)
203 || (!(nametab
= HeapAlloc( GetProcessHeap(), 0, ne
->ne_enttab
- ne
->ne_imptab
)))
204 || (!(ReadFile(hfile
, nametab
, ne
->ne_enttab
- ne
->ne_imptab
, &len
, NULL
)))
205 || (len
!= ne
->ne_enttab
- ne
->ne_imptab
) )
208 for (i
=0; i
< ne
->ne_cmod
; i
++)
210 LPSTR module
= &nametab
[modtab
[i
]];
211 TRACE("modref: %.*s\n", module
[0], &module
[1]);
212 if (!(strncmp(&module
[1], "KERNEL", module
[0])))
213 { /* very old Windows file */
214 MESSAGE("This seems to be a very old (pre-3.0) Windows executable. Expect crashes, especially if this is a real-mode binary !\n");
221 ERR("Hmm, an error occurred. Is this binary file broken?\n");
224 HeapFree( GetProcessHeap(), 0, modtab
);
225 HeapFree( GetProcessHeap(), 0, nametab
);
226 SetFilePointer( hfile
, currpos
, NULL
, SEEK_SET
); /* restore filepos */
230 /***********************************************************************
231 * MODULE_GetBinaryType
233 enum binary_type
MODULE_GetBinaryType( HANDLE hfile
, void **res_start
, void **res_end
)
239 unsigned char magic
[4];
240 unsigned char ignored
[12];
246 unsigned long cputype
;
247 unsigned long cpusubtype
;
248 unsigned long filetype
;
255 /* Seek to the start of the file and read the header information. */
256 if (SetFilePointer( hfile
, 0, NULL
, SEEK_SET
) == -1)
257 return BINARY_UNKNOWN
;
258 if (!ReadFile( hfile
, &header
, sizeof(header
), &len
, NULL
) || len
!= sizeof(header
))
259 return BINARY_UNKNOWN
;
261 if (!memcmp( header
.elf
.magic
, "\177ELF", 4 ))
263 /* FIXME: we don't bother to check byte order, architecture, etc. */
264 switch(header
.elf
.type
)
266 case 2: return BINARY_UNIX_EXE
;
267 case 3: return BINARY_UNIX_LIB
;
269 return BINARY_UNKNOWN
;
272 /* Mach-o File with Endian set to Big Endian or Little Endian */
273 if (header
.macho
.magic
== 0xfeedface || header
.macho
.magic
== 0xcefaedfe)
275 switch(header
.macho
.filetype
)
277 case 0x8: /* MH_BUNDLE */ return BINARY_UNIX_LIB
;
279 return BINARY_UNKNOWN
;
282 /* Not ELF, try DOS */
284 if (header
.mz
.e_magic
== IMAGE_DOS_SIGNATURE
)
288 IMAGE_OS2_HEADER os2
;
292 /* We do have a DOS image so we will now try to seek into
293 * the file by the amount indicated by the field
294 * "Offset to extended header" and read in the
295 * "magic" field information at that location.
296 * This will tell us if there is more header information
299 if (SetFilePointer( hfile
, header
.mz
.e_lfanew
, NULL
, SEEK_SET
) == -1)
301 if (!ReadFile( hfile
, &ext_header
, sizeof(ext_header
), &len
, NULL
) || len
< 4)
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 if (len
< sizeof(ext_header
.nt
)) /* clear remaining part of header if missing */
312 memset( (char *)&ext_header
.nt
+ len
, 0, sizeof(ext_header
.nt
) - len
);
313 if (res_start
) *res_start
= (void *)ext_header
.nt
.OptionalHeader
.ImageBase
;
314 if (res_end
) *res_end
= (void *)(ext_header
.nt
.OptionalHeader
.ImageBase
+
315 ext_header
.nt
.OptionalHeader
.SizeOfImage
);
316 if (ext_header
.nt
.FileHeader
.Characteristics
& IMAGE_FILE_DLL
) return BINARY_PE_DLL
;
317 return BINARY_PE_EXE
;
322 if (!memcmp( &ext_header
.os2
.ne_magic
, "NE", 2 ))
324 /* This is a Windows executable (NE) header. This can
325 * mean either a 16-bit OS/2 or a 16-bit Windows or even a
326 * DOS program (running under a DOS extender). To decide
327 * which, we'll have to read the NE header.
329 if (len
>= sizeof(ext_header
.os2
))
331 switch ( ext_header
.os2
.ne_exetyp
)
333 case 1: return BINARY_OS216
; /* OS/2 */
334 case 2: return BINARY_WIN16
; /* Windows */
335 case 3: return BINARY_DOS
; /* European MS-DOS 4.x */
336 case 4: return BINARY_WIN16
; /* Windows 386; FIXME: is this 32bit??? */
337 case 5: return BINARY_DOS
; /* BOSS, Borland Operating System Services */
338 /* other types, e.g. 0 is: "unknown" */
339 default: return MODULE_Decide_OS2_OldWin(hfile
, &header
.mz
, &ext_header
.os2
);
342 /* Couldn't read header, so abort. */
346 /* Unknown extended header, but this file is nonetheless DOS-executable. */
350 return BINARY_UNKNOWN
;
353 /***********************************************************************
354 * GetBinaryTypeW [KERNEL32.@]
356 * Determine whether a file is executable, and if so, what kind.
359 * lpApplicationName [I] Path of the file to check
360 * lpBinaryType [O] Destination for the binary type
363 * TRUE, if the file is an executable, in which case lpBinaryType is set.
364 * FALSE, if the file is not an executable or if the function fails.
367 * The type of executable is a property that determines which subsytem an
368 * executable file runs under. lpBinaryType can be set to one of the following
370 * SCS_32BIT_BINARY: A Win32 based application
371 * SCS_DOS_BINARY: An MS-Dos based application
372 * SCS_WOW_BINARY: A Win16 based application
373 * SCS_PIF_BINARY: A PIF file that executes an MS-Dos based app
374 * SCS_POSIX_BINARY: A POSIX based application ( Not implemented )
375 * SCS_OS216_BINARY: A 16bit OS/2 based application
377 * To find the binary type, this function reads in the files header information.
378 * If extended header information is not present it will assume that the file
379 * is a DOS executable. If extended header information is present it will
380 * determine if the file is a 16 or 32 bit Windows executable by checking the
381 * flags in the header.
383 * ".com" and ".pif" files are only recognized by their file name extension,
384 * as per native Windows.
386 BOOL WINAPI
GetBinaryTypeW( LPCWSTR lpApplicationName
, LPDWORD lpBinaryType
)
391 TRACE("%s\n", debugstr_w(lpApplicationName
) );
395 if ( lpApplicationName
== NULL
|| lpBinaryType
== NULL
)
398 /* Open the file indicated by lpApplicationName for reading.
400 hfile
= CreateFileW( lpApplicationName
, GENERIC_READ
, FILE_SHARE_READ
,
401 NULL
, OPEN_EXISTING
, 0, 0 );
402 if ( hfile
== INVALID_HANDLE_VALUE
)
407 switch(MODULE_GetBinaryType( hfile
, NULL
, NULL
))
411 static const WCHAR comW
[] = { '.','C','O','M',0 };
412 static const WCHAR pifW
[] = { '.','P','I','F',0 };
415 /* try to determine from file name */
416 ptr
= strrchrW( lpApplicationName
, '.' );
418 if (!strcmpiW( ptr
, comW
))
420 *lpBinaryType
= SCS_DOS_BINARY
;
423 else if (!strcmpiW( ptr
, pifW
))
425 *lpBinaryType
= SCS_PIF_BINARY
;
432 *lpBinaryType
= SCS_32BIT_BINARY
;
436 *lpBinaryType
= SCS_WOW_BINARY
;
440 *lpBinaryType
= SCS_OS216_BINARY
;
444 *lpBinaryType
= SCS_DOS_BINARY
;
447 case BINARY_UNIX_EXE
:
448 case BINARY_UNIX_LIB
:
453 CloseHandle( hfile
);
457 /***********************************************************************
458 * GetBinaryTypeA [KERNEL32.@]
459 * GetBinaryType [KERNEL32.@]
461 * See GetBinaryTypeW.
463 BOOL WINAPI
GetBinaryTypeA( LPCSTR lpApplicationName
, LPDWORD lpBinaryType
)
465 ANSI_STRING app_nameA
;
468 TRACE("%s\n", debugstr_a(lpApplicationName
));
472 if ( lpApplicationName
== NULL
|| lpBinaryType
== NULL
)
475 RtlInitAnsiString(&app_nameA
, lpApplicationName
);
476 status
= RtlAnsiStringToUnicodeString(&NtCurrentTeb()->StaticUnicodeString
,
479 return GetBinaryTypeW(NtCurrentTeb()->StaticUnicodeString
.Buffer
, lpBinaryType
);
481 SetLastError(RtlNtStatusToDosError(status
));
486 /***********************************************************************
487 * GetModuleHandleA (KERNEL32.@)
488 * GetModuleHandle32 (KERNEL.488)
490 * Get the handle of a dll loaded into the process address space.
493 * module [I] Name of the dll
496 * Success: A handle to the loaded dll.
497 * Failure: A NULL handle. Use GetLastError() to determine the cause.
499 HMODULE WINAPI
GetModuleHandleA(LPCSTR module
)
503 if (!module
) return NtCurrentTeb()->Peb
->ImageBaseAddress
;
504 if (!(moduleW
= FILE_name_AtoW( module
, FALSE
))) return 0;
505 return GetModuleHandleW( moduleW
);
508 /***********************************************************************
509 * GetModuleHandleW (KERNEL32.@)
511 * Unicode version of GetModuleHandleA.
513 HMODULE WINAPI
GetModuleHandleW(LPCWSTR module
)
519 if (!module
) return NtCurrentTeb()->Peb
->ImageBaseAddress
;
521 RtlInitUnicodeString( &wstr
, module
);
522 nts
= LdrGetDllHandle( 0, 0, &wstr
, &ret
);
523 if (nts
!= STATUS_SUCCESS
)
525 SetLastError( RtlNtStatusToDosError( nts
) );
532 /***********************************************************************
533 * GetModuleFileNameA (KERNEL32.@)
534 * GetModuleFileName32 (KERNEL.487)
536 * Get the file name of a loaded module from its handle.
539 * Success: The length of the file name, excluding the terminating NUL.
540 * Failure: 0. Use GetLastError() to determine the cause.
543 * This function always returns the long path of hModule (as opposed to
544 * GetModuleFileName16() which returns short paths when the modules version
546 * The function doesn't write a terminating '\0' if the buffer is too
549 DWORD WINAPI
GetModuleFileNameA(
550 HMODULE hModule
, /* [in] Module handle (32 bit) */
551 LPSTR lpFileName
, /* [out] Destination for file name */
552 DWORD size
) /* [in] Size of lpFileName in characters */
554 LPWSTR filenameW
= HeapAlloc( GetProcessHeap(), 0, size
* sizeof(WCHAR
) );
559 SetLastError( ERROR_NOT_ENOUGH_MEMORY
);
562 if ((len
= GetModuleFileNameW( hModule
, filenameW
, size
)))
564 len
= FILE_name_WtoA( filenameW
, len
, lpFileName
, size
);
565 if (len
< size
) lpFileName
[len
] = '\0';
567 HeapFree( GetProcessHeap(), 0, filenameW
);
571 /***********************************************************************
572 * GetModuleFileNameW (KERNEL32.@)
574 * Unicode version of GetModuleFileNameA.
576 DWORD WINAPI
GetModuleFileNameW( HMODULE hModule
, LPWSTR lpFileName
, DWORD size
)
578 ULONG magic
, len
= 0;
581 WIN16_SUBSYSTEM_TIB
*win16_tib
;
583 if (!hModule
&& ((win16_tib
= NtCurrentTeb()->Tib
.SubSystemTib
)) && win16_tib
->exe_name
)
585 len
= min(size
, win16_tib
->exe_name
->Length
/ sizeof(WCHAR
));
586 memcpy( lpFileName
, win16_tib
->exe_name
->Buffer
, len
* sizeof(WCHAR
) );
587 if (len
< size
) lpFileName
[len
] = '\0';
591 LdrLockLoaderLock( 0, NULL
, &magic
);
593 if (!hModule
) hModule
= NtCurrentTeb()->Peb
->ImageBaseAddress
;
594 nts
= LdrFindEntryForAddress( hModule
, &pldr
);
595 if (nts
== STATUS_SUCCESS
)
597 len
= min(size
, pldr
->FullDllName
.Length
/ sizeof(WCHAR
));
598 memcpy(lpFileName
, pldr
->FullDllName
.Buffer
, len
* sizeof(WCHAR
));
599 if (len
< size
) lpFileName
[len
] = '\0';
601 else SetLastError( RtlNtStatusToDosError( nts
) );
603 LdrUnlockLoaderLock( 0, magic
);
605 TRACE( "%s\n", debugstr_wn(lpFileName
, len
) );
610 /***********************************************************************
611 * get_dll_system_path
613 static const WCHAR
*get_dll_system_path(void)
615 static WCHAR
*cached_path
;
622 len
+= 2 * GetSystemDirectoryW( NULL
, 0 );
623 len
+= GetWindowsDirectoryW( NULL
, 0 );
624 p
= path
= HeapAlloc( GetProcessHeap(), 0, len
* sizeof(WCHAR
) );
627 GetSystemDirectoryW( p
, path
+ len
- p
);
629 /* if system directory ends in "32" add 16-bit version too */
630 if (p
[-2] == '3' && p
[-1] == '2')
633 GetSystemDirectoryW( p
, path
+ len
- p
);
637 GetWindowsDirectoryW( p
, path
+ len
- p
);
644 /******************************************************************
645 * MODULE_get_dll_load_path
647 * Compute the load path to use for a given dll.
648 * Returned pointer must be freed by caller.
650 WCHAR
*MODULE_get_dll_load_path( LPCWSTR module
)
652 static const WCHAR pathW
[] = {'P','A','T','H',0};
654 const WCHAR
*system_path
= get_dll_system_path();
655 const WCHAR
*mod_end
= NULL
;
656 UNICODE_STRING name
, value
;
658 int len
= 0, path_len
= 0;
660 /* adjust length for module name */
662 if (!module
) module
= NtCurrentTeb()->Peb
->ProcessParameters
->ImagePathName
.Buffer
;
666 if ((p
= strrchrW( mod_end
, '\\' ))) mod_end
= p
;
667 if ((p
= strrchrW( mod_end
, '/' ))) mod_end
= p
;
668 if (mod_end
== module
+ 2 && module
[1] == ':') mod_end
++;
669 if (mod_end
== module
&& module
[0] && module
[1] == ':') mod_end
+= 2;
670 len
+= (mod_end
- module
) + 1;
672 len
+= strlenW( system_path
) + 2;
674 /* get the PATH variable */
676 RtlInitUnicodeString( &name
, pathW
);
678 value
.MaximumLength
= 0;
680 if (RtlQueryEnvironmentVariable_U( NULL
, &name
, &value
) == STATUS_BUFFER_TOO_SMALL
)
681 path_len
= value
.Length
;
683 RtlEnterCriticalSection( &dlldir_section
);
684 if (dll_directory
) len
+= strlenW(dll_directory
) + 1;
685 if ((p
= ret
= HeapAlloc( GetProcessHeap(), 0, path_len
+ len
* sizeof(WCHAR
) )))
689 memcpy( ret
, module
, (mod_end
- module
) * sizeof(WCHAR
) );
690 p
+= (mod_end
- module
);
695 strcpyW( p
, dll_directory
);
700 RtlLeaveCriticalSection( &dlldir_section
);
701 if (!ret
) return NULL
;
703 strcpyW( p
, system_path
);
707 value
.MaximumLength
= path_len
;
709 while (RtlQueryEnvironmentVariable_U( NULL
, &name
, &value
) == STATUS_BUFFER_TOO_SMALL
)
713 /* grow the buffer and retry */
714 path_len
= value
.Length
;
715 if (!(new_ptr
= HeapReAlloc( GetProcessHeap(), 0, ret
, path_len
+ len
* sizeof(WCHAR
) )))
717 HeapFree( GetProcessHeap(), 0, ret
);
720 value
.Buffer
= new_ptr
+ (value
.Buffer
- ret
);
721 value
.MaximumLength
= path_len
;
724 value
.Buffer
[value
.Length
/ sizeof(WCHAR
)] = 0;
729 /******************************************************************
730 * load_library_as_datafile
732 static BOOL
load_library_as_datafile( LPCWSTR name
, HMODULE
* hmod
)
734 static const WCHAR dotDLL
[] = {'.','d','l','l',0};
736 WCHAR filenameW
[MAX_PATH
];
737 HANDLE hFile
= INVALID_HANDLE_VALUE
;
743 if (SearchPathW( NULL
, (LPCWSTR
)name
, dotDLL
, sizeof(filenameW
) / sizeof(filenameW
[0]),
746 hFile
= CreateFileW( filenameW
, GENERIC_READ
, FILE_SHARE_READ
,
747 NULL
, OPEN_EXISTING
, 0, 0 );
749 if (hFile
== INVALID_HANDLE_VALUE
) return FALSE
;
751 mapping
= CreateFileMappingW( hFile
, NULL
, PAGE_READONLY
, 0, 0, NULL
);
752 CloseHandle( hFile
);
753 if (!mapping
) return FALSE
;
755 module
= MapViewOfFile( mapping
, FILE_MAP_READ
, 0, 0, 0 );
756 CloseHandle( mapping
);
757 if (!module
) return FALSE
;
759 /* make sure it's a valid PE file */
760 if (!RtlImageNtHeader(module
))
762 UnmapViewOfFile( module
);
765 *hmod
= (HMODULE
)((char *)module
+ 1); /* set low bit of handle to indicate datafile module */
770 /******************************************************************
773 * Helper for LoadLibraryExA/W.
775 static HMODULE
load_library( const UNICODE_STRING
*libname
, DWORD flags
)
781 if (flags
& LOAD_LIBRARY_AS_DATAFILE
)
783 /* The method in load_library_as_datafile allows searching for the
784 * 'native' libraries only
786 if (load_library_as_datafile( libname
->Buffer
, &hModule
)) return hModule
;
787 flags
|= DONT_RESOLVE_DLL_REFERENCES
; /* Just in case */
788 /* Fallback to normal behaviour */
791 load_path
= MODULE_get_dll_load_path( flags
& LOAD_WITH_ALTERED_SEARCH_PATH
? libname
->Buffer
: NULL
);
792 nts
= LdrLoadDll( load_path
, flags
, libname
, &hModule
);
793 HeapFree( GetProcessHeap(), 0, load_path
);
794 if (nts
!= STATUS_SUCCESS
)
797 SetLastError( RtlNtStatusToDosError( nts
) );
803 /******************************************************************
804 * LoadLibraryExA (KERNEL32.@)
806 * Load a dll file into the process address space.
809 * libname [I] Name of the file to load
810 * hfile [I] Reserved, must be 0.
811 * flags [I] Flags for loading the dll
814 * Success: A handle to the loaded dll.
815 * Failure: A NULL handle. Use GetLastError() to determine the cause.
818 * The HFILE parameter is not used and marked reserved in the SDK. I can
819 * only guess that it should force a file to be mapped, but I rather
820 * ignore the parameter because it would be extremely difficult to
821 * integrate this with different types of module representations.
823 HMODULE WINAPI
LoadLibraryExA(LPCSTR libname
, HANDLE hfile
, DWORD flags
)
827 if (!(libnameW
= FILE_name_AtoW( libname
, FALSE
))) return 0;
828 return LoadLibraryExW( libnameW
, hfile
, flags
);
831 /***********************************************************************
832 * LoadLibraryExW (KERNEL32.@)
834 * Unicode version of LoadLibraryExA.
836 HMODULE WINAPI
LoadLibraryExW(LPCWSTR libnameW
, HANDLE hfile
, DWORD flags
)
843 SetLastError(ERROR_INVALID_PARAMETER
);
846 RtlInitUnicodeString( &wstr
, libnameW
);
847 if (wstr
.Buffer
[wstr
.Length
/sizeof(WCHAR
) - 1] != ' ')
848 return load_library( &wstr
, flags
);
850 /* Library name has trailing spaces */
851 RtlCreateUnicodeString( &wstr
, libnameW
);
852 while (wstr
.Length
> sizeof(WCHAR
) &&
853 wstr
.Buffer
[wstr
.Length
/sizeof(WCHAR
) - 1] == ' ')
855 wstr
.Length
-= sizeof(WCHAR
);
857 wstr
.Buffer
[wstr
.Length
/sizeof(WCHAR
)] = '\0';
858 res
= load_library( &wstr
, flags
);
859 RtlFreeUnicodeString( &wstr
);
863 /***********************************************************************
864 * LoadLibraryA (KERNEL32.@)
866 * Load a dll file into the process address space.
869 * libname [I] Name of the file to load
872 * Success: A handle to the loaded dll.
873 * Failure: A NULL handle. Use GetLastError() to determine the cause.
876 * See LoadLibraryExA().
878 HMODULE WINAPI
LoadLibraryA(LPCSTR libname
)
880 return LoadLibraryExA(libname
, 0, 0);
883 /***********************************************************************
884 * LoadLibraryW (KERNEL32.@)
886 * Unicode version of LoadLibraryA.
888 HMODULE WINAPI
LoadLibraryW(LPCWSTR libnameW
)
890 return LoadLibraryExW(libnameW
, 0, 0);
893 /***********************************************************************
894 * FreeLibrary (KERNEL32.@)
895 * FreeLibrary32 (KERNEL.486)
897 * Free a dll loaded into the process address space.
900 * hLibModule [I] Handle to the dll returned by LoadLibraryA().
903 * Success: TRUE. The dll is removed if it is not still in use.
904 * Failure: FALSE. Use GetLastError() to determine the cause.
906 BOOL WINAPI
FreeLibrary(HINSTANCE hLibModule
)
913 SetLastError( ERROR_INVALID_HANDLE
);
917 if ((ULONG_PTR
)hLibModule
& 1)
919 /* this is a LOAD_LIBRARY_AS_DATAFILE module */
920 char *ptr
= (char *)hLibModule
- 1;
921 UnmapViewOfFile( ptr
);
925 if ((nts
= LdrUnloadDll( hLibModule
)) == STATUS_SUCCESS
) retv
= TRUE
;
926 else SetLastError( RtlNtStatusToDosError( nts
) );
931 /***********************************************************************
932 * GetProcAddress (KERNEL32.@)
934 * Find the address of an exported symbol in a loaded dll.
937 * hModule [I] Handle to the dll returned by LoadLibraryA().
938 * function [I] Name of the symbol, or an integer ordinal number < 16384
941 * Success: A pointer to the symbol in the process address space.
942 * Failure: NULL. Use GetLastError() to determine the cause.
944 FARPROC WINAPI
GetProcAddress( HMODULE hModule
, LPCSTR function
)
949 if (!hModule
) hModule
= NtCurrentTeb()->Peb
->ImageBaseAddress
;
951 if (HIWORD(function
))
955 RtlInitAnsiString( &str
, function
);
956 nts
= LdrGetProcedureAddress( hModule
, &str
, 0, (void**)&fp
);
959 nts
= LdrGetProcedureAddress( hModule
, NULL
, LOWORD(function
), (void**)&fp
);
960 if (nts
!= STATUS_SUCCESS
)
962 SetLastError( RtlNtStatusToDosError( nts
) );
968 /***********************************************************************
969 * GetProcAddress32 (KERNEL.453)
971 * Find the address of an exported symbol in a loaded dll.
974 * hModule [I] Handle to the dll returned by LoadLibraryA().
975 * function [I] Name of the symbol, or an integer ordinal number < 16384
978 * Success: A pointer to the symbol in the process address space.
979 * Failure: NULL. Use GetLastError() to determine the cause.
981 FARPROC WINAPI
GetProcAddress32_16( HMODULE hModule
, LPCSTR function
)
983 /* FIXME: we used to disable snoop when returning proc for Win16 subsystem */
984 return GetProcAddress( hModule
, function
);
988 /***********************************************************************
989 * DelayLoadFailureHook (KERNEL32.@)
991 FARPROC WINAPI
DelayLoadFailureHook( LPCSTR name
, LPCSTR function
)
995 if ((ULONG_PTR
)function
>> 16)
996 ERR( "failed to delay load %s.%s\n", name
, function
);
998 ERR( "failed to delay load %s.%u\n", name
, LOWORD(function
) );
999 args
[0] = (ULONG_PTR
)name
;
1000 args
[1] = (ULONG_PTR
)function
;
1001 RaiseException( EXCEPTION_WINE_STUB
, EH_NONCONTINUABLE
, 2, args
);