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 #ifdef HAVE_SYS_TYPES_H
29 # include <sys/types.h>
34 #include "wine/winbase16.h"
44 #include "wine/debug.h"
45 #include "wine/unicode.h"
46 #include "wine/server.h"
48 WINE_DEFAULT_DEBUG_CHANNEL(module
);
49 WINE_DECLARE_DEBUG_CHANNEL(loaddll
);
52 /****************************************************************************
53 * DisableThreadLibraryCalls (KERNEL32.@)
55 * Inform the module loader that thread notifications are not required for a dll.
58 * hModule [I] Module handle to skip calls for
61 * Success: TRUE. Thread attach and detach notifications will not be sent
63 * Failure: FALSE. Use GetLastError() to determine the cause.
66 * This is typically called from the dll entry point of a dll during process
67 * attachment, for dlls that do not need to process thread notifications.
69 BOOL WINAPI
DisableThreadLibraryCalls( HMODULE hModule
)
71 NTSTATUS nts
= LdrDisableThreadCalloutsForDll( hModule
);
72 if (nts
== STATUS_SUCCESS
) return TRUE
;
74 SetLastError( RtlNtStatusToDosError( nts
) );
79 /* Check whether a file is an OS/2 or a very old Windows executable
80 * by testing on import of KERNEL.
82 * FIXME: is reading the module imports the only way of discerning
83 * old Windows binaries from OS/2 ones ? At least it seems so...
85 static enum binary_type
MODULE_Decide_OS2_OldWin(HANDLE hfile
, const IMAGE_DOS_HEADER
*mz
,
86 const IMAGE_OS2_HEADER
*ne
)
88 DWORD currpos
= SetFilePointer( hfile
, 0, NULL
, SEEK_CUR
);
89 enum binary_type ret
= BINARY_OS216
;
95 /* read modref table */
96 if ( (SetFilePointer( hfile
, mz
->e_lfanew
+ ne
->ne_modtab
, NULL
, SEEK_SET
) == -1)
97 || (!(modtab
= HeapAlloc( GetProcessHeap(), 0, ne
->ne_cmod
*sizeof(WORD
))))
98 || (!(ReadFile(hfile
, modtab
, ne
->ne_cmod
*sizeof(WORD
), &len
, NULL
)))
99 || (len
!= ne
->ne_cmod
*sizeof(WORD
)) )
102 /* read imported names table */
103 if ( (SetFilePointer( hfile
, mz
->e_lfanew
+ ne
->ne_imptab
, NULL
, SEEK_SET
) == -1)
104 || (!(nametab
= HeapAlloc( GetProcessHeap(), 0, ne
->ne_enttab
- ne
->ne_imptab
)))
105 || (!(ReadFile(hfile
, nametab
, ne
->ne_enttab
- ne
->ne_imptab
, &len
, NULL
)))
106 || (len
!= ne
->ne_enttab
- ne
->ne_imptab
) )
109 for (i
=0; i
< ne
->ne_cmod
; i
++)
111 LPSTR module
= &nametab
[modtab
[i
]];
112 TRACE("modref: %.*s\n", module
[0], &module
[1]);
113 if (!(strncmp(&module
[1], "KERNEL", module
[0])))
114 { /* very old Windows file */
115 MESSAGE("This seems to be a very old (pre-3.0) Windows executable. Expect crashes, especially if this is a real-mode binary !\n");
122 ERR("Hmm, an error occurred. Is this binary file broken ?\n");
125 HeapFree( GetProcessHeap(), 0, modtab
);
126 HeapFree( GetProcessHeap(), 0, nametab
);
127 SetFilePointer( hfile
, currpos
, NULL
, SEEK_SET
); /* restore filepos */
131 /***********************************************************************
132 * MODULE_GetBinaryType
134 enum binary_type
MODULE_GetBinaryType( HANDLE hfile
)
140 unsigned char magic
[4];
141 unsigned char ignored
[12];
147 unsigned long cputype
;
148 unsigned long cpusubtype
;
149 unsigned long filetype
;
157 /* Seek to the start of the file and read the header information. */
158 if (SetFilePointer( hfile
, 0, NULL
, SEEK_SET
) == -1)
159 return BINARY_UNKNOWN
;
160 if (!ReadFile( hfile
, &header
, sizeof(header
), &len
, NULL
) || len
!= sizeof(header
))
161 return BINARY_UNKNOWN
;
163 if (!memcmp( header
.elf
.magic
, "\177ELF", 4 ))
165 /* FIXME: we don't bother to check byte order, architecture, etc. */
166 switch(header
.elf
.type
)
168 case 2: return BINARY_UNIX_EXE
;
169 case 3: return BINARY_UNIX_LIB
;
171 return BINARY_UNKNOWN
;
174 /* Mach-o File with Endian set to Big Endian or Little Endian*/
175 if (header
.macho
.magic
== 0xfeedface || header
.macho
.magic
== 0xecafdeef)
177 switch(header
.macho
.filetype
)
179 case 0x8: /* MH_BUNDLE */ return BINARY_UNIX_LIB
;
181 return BINARY_UNKNOWN
;
184 /* Not ELF, try DOS */
186 if (header
.mz
.e_magic
== IMAGE_DOS_SIGNATURE
)
188 /* We do have a DOS image so we will now try to seek into
189 * the file by the amount indicated by the field
190 * "Offset to extended header" and read in the
191 * "magic" field information at that location.
192 * This will tell us if there is more header information
195 if (SetFilePointer( hfile
, header
.mz
.e_lfanew
, NULL
, SEEK_SET
) == -1)
197 if (!ReadFile( hfile
, magic
, sizeof(magic
), &len
, NULL
) || len
!= sizeof(magic
))
200 /* Reading the magic field succeeded so
201 * we will try to determine what type it is.
203 if (!memcmp( magic
, "PE\0\0", 4 ))
205 IMAGE_FILE_HEADER FileHeader
;
207 if (ReadFile( hfile
, &FileHeader
, sizeof(FileHeader
), &len
, NULL
) && len
== sizeof(FileHeader
))
209 if (FileHeader
.Characteristics
& IMAGE_FILE_DLL
) return BINARY_PE_DLL
;
210 return BINARY_PE_EXE
;
215 if (!memcmp( magic
, "NE", 2 ))
217 /* This is a Windows executable (NE) header. This can
218 * mean either a 16-bit OS/2 or a 16-bit Windows or even a
219 * DOS program (running under a DOS extender). To decide
220 * which, we'll have to read the NE header.
223 if ( SetFilePointer( hfile
, header
.mz
.e_lfanew
, NULL
, SEEK_SET
) != -1
224 && ReadFile( hfile
, &ne
, sizeof(ne
), &len
, NULL
)
225 && len
== sizeof(ne
) )
227 switch ( ne
.ne_exetyp
)
229 case 2: return BINARY_WIN16
;
230 case 5: return BINARY_DOS
;
231 default: return MODULE_Decide_OS2_OldWin(hfile
, &header
.mz
, &ne
);
234 /* Couldn't read header, so abort. */
238 /* Unknown extended header, but this file is nonetheless DOS-executable. */
242 return BINARY_UNKNOWN
;
245 /***********************************************************************
246 * GetBinaryTypeW [KERNEL32.@]
248 * Determine whether a file is executable, and if so, what kind.
251 * lpApplicationName [I] Path of the file to check
252 * lpBinaryType [O] Destination for the binary type
255 * TRUE, if the file is an executable, in which case lpBinaryType is set.
256 * FALSE, if the file is not an executable or if the function fails.
259 * The type of executable is a property that determines which subsytem an
260 * executable file runs under. lpBinaryType can be set to one of the following
262 * SCS_32BIT_BINARY: A Win32 based application
263 * SCS_DOS_BINARY: An MS-Dos based application
264 * SCS_WOW_BINARY: A Win16 based application
265 * SCS_PIF_BINARY: A PIF file that executes an MS-Dos based app
266 * SCS_POSIX_BINARY: A POSIX based application ( Not implemented )
267 * SCS_OS216_BINARY: A 16bit OS/2 based application
269 * To find the binary type, this function reads in the files header information.
270 * If extended header information is not present it will assume that the file
271 * is a DOS executable. If extended header information is present it will
272 * determine if the file is a 16 or 32 bit Windows executable by checking the
273 * flags in the header.
275 * ".com" and ".pif" files are only recognized by their file name extension,
276 * as per native Windows.
278 BOOL WINAPI
GetBinaryTypeW( LPCWSTR lpApplicationName
, LPDWORD lpBinaryType
)
283 TRACE("%s\n", debugstr_w(lpApplicationName
) );
287 if ( lpApplicationName
== NULL
|| lpBinaryType
== NULL
)
290 /* Open the file indicated by lpApplicationName for reading.
292 hfile
= CreateFileW( lpApplicationName
, GENERIC_READ
, FILE_SHARE_READ
,
293 NULL
, OPEN_EXISTING
, 0, 0 );
294 if ( hfile
== INVALID_HANDLE_VALUE
)
299 switch(MODULE_GetBinaryType( hfile
))
303 static const WCHAR comW
[] = { '.','C','O','M',0 };
304 static const WCHAR pifW
[] = { '.','P','I','F',0 };
307 /* try to determine from file name */
308 ptr
= strrchrW( lpApplicationName
, '.' );
310 if (!strcmpiW( ptr
, comW
))
312 *lpBinaryType
= SCS_DOS_BINARY
;
315 else if (!strcmpiW( ptr
, pifW
))
317 *lpBinaryType
= SCS_PIF_BINARY
;
324 *lpBinaryType
= SCS_32BIT_BINARY
;
328 *lpBinaryType
= SCS_WOW_BINARY
;
332 *lpBinaryType
= SCS_OS216_BINARY
;
336 *lpBinaryType
= SCS_DOS_BINARY
;
339 case BINARY_UNIX_EXE
:
340 case BINARY_UNIX_LIB
:
345 CloseHandle( hfile
);
349 /***********************************************************************
350 * GetBinaryTypeA [KERNEL32.@]
351 * GetBinaryType [KERNEL32.@]
353 BOOL WINAPI
GetBinaryTypeA( LPCSTR lpApplicationName
, LPDWORD lpBinaryType
)
355 ANSI_STRING app_nameA
;
358 TRACE("%s\n", debugstr_a(lpApplicationName
));
362 if ( lpApplicationName
== NULL
|| lpBinaryType
== NULL
)
365 RtlInitAnsiString(&app_nameA
, lpApplicationName
);
366 status
= RtlAnsiStringToUnicodeString(&NtCurrentTeb()->StaticUnicodeString
,
369 return GetBinaryTypeW(NtCurrentTeb()->StaticUnicodeString
.Buffer
, lpBinaryType
);
371 SetLastError(RtlNtStatusToDosError(status
));
376 /***********************************************************************
377 * GetModuleHandleA (KERNEL32.@)
378 * GetModuleHandle32 (KERNEL.488)
380 * Get the handle of a dll loaded into the process address space.
383 * module [I] Name of the dll
386 * Success: A handle to the loaded dll.
387 * Failure: A NULL handle. Use GetLastError() to determine the cause.
389 HMODULE WINAPI
GetModuleHandleA(LPCSTR module
)
395 if (!module
) return NtCurrentTeb()->Peb
->ImageBaseAddress
;
397 RtlCreateUnicodeStringFromAsciiz(&wstr
, module
);
398 nts
= LdrGetDllHandle(0, 0, &wstr
, &ret
);
399 RtlFreeUnicodeString( &wstr
);
400 if (nts
!= STATUS_SUCCESS
)
403 SetLastError( RtlNtStatusToDosError( nts
) );
408 /***********************************************************************
409 * GetModuleHandleW (KERNEL32.@)
411 * Unicode version of GetModuleHandleA.
413 HMODULE WINAPI
GetModuleHandleW(LPCWSTR module
)
419 if (!module
) return NtCurrentTeb()->Peb
->ImageBaseAddress
;
421 RtlInitUnicodeString( &wstr
, module
);
422 nts
= LdrGetDllHandle( 0, 0, &wstr
, &ret
);
423 if (nts
!= STATUS_SUCCESS
)
425 SetLastError( RtlNtStatusToDosError( nts
) );
432 /***********************************************************************
433 * GetModuleFileNameA (KERNEL32.@)
434 * GetModuleFileName32 (KERNEL.487)
436 * Get the file name of a loaded module from its handle.
439 * Success: The length of the file name, excluding the terminating NUL.
440 * Failure: 0. Use GetLastError() to determine the cause.
443 * This function always returns the long path of hModule (as opposed to
444 * GetModuleFileName16() which returns short paths when the modules version
447 DWORD WINAPI
GetModuleFileNameA(
448 HMODULE hModule
, /* [in] Module handle (32 bit) */
449 LPSTR lpFileName
, /* [out] Destination for file name */
450 DWORD size
) /* [in] Size of lpFileName in characters */
452 LPWSTR filenameW
= HeapAlloc( GetProcessHeap(), 0, size
* sizeof(WCHAR
) );
456 SetLastError( ERROR_NOT_ENOUGH_MEMORY
);
459 GetModuleFileNameW( hModule
, filenameW
, size
);
460 WideCharToMultiByte( CP_ACP
, 0, filenameW
, -1, lpFileName
, size
, NULL
, NULL
);
461 HeapFree( GetProcessHeap(), 0, filenameW
);
462 return strlen( lpFileName
);
465 /***********************************************************************
466 * GetModuleFileNameW (KERNEL32.@)
468 * Unicode version of GetModuleFileNameA.
470 DWORD WINAPI
GetModuleFileNameW( HMODULE hModule
, LPWSTR lpFileName
, DWORD size
)
476 LdrLockLoaderLock( 0, NULL
, &magic
);
477 if (!hModule
&& !(NtCurrentTeb()->tibflags
& TEBF_WIN32
))
479 /* 16-bit task - get current NE module name */
480 NE_MODULE
*pModule
= NE_GetPtr( GetCurrentTask() );
483 WCHAR path
[MAX_PATH
];
485 MultiByteToWideChar( CP_ACP
, 0, NE_MODULE_NAME(pModule
), -1, path
, MAX_PATH
);
486 GetLongPathNameW(path
, lpFileName
, size
);
494 if (!hModule
) hModule
= NtCurrentTeb()->Peb
->ImageBaseAddress
;
495 nts
= LdrFindEntryForAddress( hModule
, &pldr
);
496 if (nts
== STATUS_SUCCESS
) lstrcpynW(lpFileName
, pldr
->FullDllName
.Buffer
, size
);
497 else SetLastError( RtlNtStatusToDosError( nts
) );
500 LdrUnlockLoaderLock( 0, magic
);
502 TRACE( "%s\n", debugstr_w(lpFileName
) );
503 return strlenW(lpFileName
);
507 /***********************************************************************
508 * get_dll_system_path
510 static const WCHAR
*get_dll_system_path(void)
519 exe_name
= NtCurrentTeb()->Peb
->ProcessParameters
->ImagePathName
.Buffer
;
520 if (!(p
= strrchrW( exe_name
, '\\' ))) p
= exe_name
;
521 /* include trailing backslash only on drive root */
522 if (p
== exe_name
+ 2 && exe_name
[1] == ':') p
++;
524 len
+= GetSystemDirectoryW( NULL
, 0 );
525 len
+= GetWindowsDirectoryW( NULL
, 0 );
526 path
= HeapAlloc( GetProcessHeap(), 0, len
* sizeof(WCHAR
) );
527 memcpy( path
, exe_name
, (p
- exe_name
) * sizeof(WCHAR
) );
528 p
= path
+ (p
- exe_name
);
532 GetSystemDirectoryW( p
, path
+ len
- p
);
535 GetWindowsDirectoryW( p
, path
+ len
- p
);
541 /******************************************************************
544 * Compute the load path to use for a given dll.
545 * Returned pointer must be freed by caller.
547 static WCHAR
*get_dll_load_path( LPCWSTR module
)
549 static const WCHAR pathW
[] = {'P','A','T','H',0};
551 const WCHAR
*system_path
= get_dll_system_path();
552 const WCHAR
*mod_end
= NULL
;
553 UNICODE_STRING name
, value
;
555 int len
= 0, path_len
= 0;
557 /* adjust length for module name */
562 if ((p
= strrchrW( mod_end
, '\\' ))) mod_end
= p
;
563 if ((p
= strrchrW( mod_end
, '/' ))) mod_end
= p
;
564 if (mod_end
== module
+ 2 && module
[1] == ':') mod_end
++;
565 if (mod_end
== module
&& module
[0] && module
[1] == ':') mod_end
+= 2;
566 len
+= (mod_end
- module
);
567 system_path
= strchrW( system_path
, ';' );
569 len
+= strlenW( system_path
) + 2;
571 /* get the PATH variable */
573 RtlInitUnicodeString( &name
, pathW
);
575 value
.MaximumLength
= 0;
577 if (RtlQueryEnvironmentVariable_U( NULL
, &name
, &value
) == STATUS_BUFFER_TOO_SMALL
)
578 path_len
= value
.Length
;
580 if (!(ret
= HeapAlloc( GetProcessHeap(), 0, path_len
+ len
* sizeof(WCHAR
) ))) return NULL
;
584 memcpy( ret
, module
, (mod_end
- module
) * sizeof(WCHAR
) );
585 p
+= (mod_end
- module
);
587 strcpyW( p
, system_path
);
591 value
.MaximumLength
= path_len
;
593 while (RtlQueryEnvironmentVariable_U( NULL
, &name
, &value
) == STATUS_BUFFER_TOO_SMALL
)
597 /* grow the buffer and retry */
598 path_len
= value
.Length
;
599 if (!(new_ptr
= HeapReAlloc( GetProcessHeap(), 0, ret
, path_len
+ len
* sizeof(WCHAR
) )))
601 HeapFree( GetProcessHeap(), 0, ret
);
604 value
.Buffer
= new_ptr
+ (value
.Buffer
- ret
);
605 value
.MaximumLength
= path_len
;
608 value
.Buffer
[value
.Length
/ sizeof(WCHAR
)] = 0;
613 /******************************************************************
614 * MODULE_InitLoadPath
616 * Create the initial dll load path.
618 void MODULE_InitLoadPath(void)
620 WCHAR
*path
= get_dll_load_path( NULL
);
621 RtlInitUnicodeString( &NtCurrentTeb()->Peb
->ProcessParameters
->DllPath
, path
);
625 /******************************************************************
626 * load_library_as_datafile
628 static BOOL
load_library_as_datafile( LPCWSTR name
, HMODULE
* hmod
)
630 static const WCHAR dotDLL
[] = {'.','d','l','l',0};
632 WCHAR filenameW
[MAX_PATH
];
633 HANDLE hFile
= INVALID_HANDLE_VALUE
;
639 if (SearchPathW( NULL
, (LPCWSTR
)name
, dotDLL
, sizeof(filenameW
) / sizeof(filenameW
[0]),
642 hFile
= CreateFileW( filenameW
, GENERIC_READ
, FILE_SHARE_READ
,
643 NULL
, OPEN_EXISTING
, 0, 0 );
645 if (hFile
== INVALID_HANDLE_VALUE
) return FALSE
;
647 mapping
= CreateFileMappingW( hFile
, NULL
, PAGE_READONLY
, 0, 0, NULL
);
648 CloseHandle( hFile
);
649 if (!mapping
) return FALSE
;
651 module
= MapViewOfFile( mapping
, FILE_MAP_READ
, 0, 0, 0 );
652 CloseHandle( mapping
);
653 if (!module
) return FALSE
;
655 /* make sure it's a valid PE file */
656 if (!RtlImageNtHeader(module
))
658 UnmapViewOfFile( module
);
661 *hmod
= (HMODULE
)((char *)module
+ 1); /* set low bit of handle to indicate datafile module */
666 /******************************************************************
669 * Helper for LoadLibraryExA/W.
671 static HMODULE
load_library( const UNICODE_STRING
*libname
, DWORD flags
)
677 if (flags
& LOAD_LIBRARY_AS_DATAFILE
)
679 /* The method in load_library_as_datafile allows searching for the
680 * 'native' libraries only
682 if (load_library_as_datafile( libname
->Buffer
, &hModule
)) return hModule
;
683 flags
|= DONT_RESOLVE_DLL_REFERENCES
; /* Just in case */
684 /* Fallback to normal behaviour */
687 load_path
= get_dll_load_path( flags
& LOAD_WITH_ALTERED_SEARCH_PATH
? libname
->Buffer
: NULL
);
688 nts
= LdrLoadDll( load_path
, flags
, libname
, &hModule
);
689 HeapFree( GetProcessHeap(), 0, load_path
);
690 if (nts
!= STATUS_SUCCESS
)
693 SetLastError( RtlNtStatusToDosError( nts
) );
699 /******************************************************************
700 * LoadLibraryExA (KERNEL32.@)
702 * Load a dll file into the process address space.
705 * libname [I] Name of the file to load
706 * hfile [I] Reserved, must be 0.
707 * flags [I] Flags for loading the dll
710 * Success: A handle to the loaded dll.
711 * Failure: A NULL handle. Use GetLastError() to determine the cause.
714 * The HFILE parameter is not used and marked reserved in the SDK. I can
715 * only guess that it should force a file to be mapped, but I rather
716 * ignore the parameter because it would be extremely difficult to
717 * integrate this with different types of module representations.
719 HMODULE WINAPI
LoadLibraryExA(LPCSTR libname
, HANDLE hfile
, DWORD flags
)
726 SetLastError(ERROR_INVALID_PARAMETER
);
729 RtlCreateUnicodeStringFromAsciiz( &wstr
, libname
);
730 hModule
= load_library( &wstr
, flags
);
731 RtlFreeUnicodeString( &wstr
);
735 /***********************************************************************
736 * LoadLibraryExW (KERNEL32.@)
738 * Unicode version of LoadLibraryExA.
740 HMODULE WINAPI
LoadLibraryExW(LPCWSTR libnameW
, HANDLE hfile
, DWORD flags
)
746 SetLastError(ERROR_INVALID_PARAMETER
);
749 RtlInitUnicodeString( &wstr
, libnameW
);
750 return load_library( &wstr
, flags
);
753 /***********************************************************************
754 * LoadLibraryA (KERNEL32.@)
756 * Load a dll file into the process address space.
759 * libname [I] Name of the file to load
762 * Success: A handle to the loaded dll.
763 * Failure: A NULL handle. Use GetLastError() to determine the cause.
766 * See LoadLibraryExA().
768 HMODULE WINAPI
LoadLibraryA(LPCSTR libname
)
770 return LoadLibraryExA(libname
, 0, 0);
773 /***********************************************************************
774 * LoadLibraryW (KERNEL32.@)
776 * Unicode version of LoadLibraryA.
778 HMODULE WINAPI
LoadLibraryW(LPCWSTR libnameW
)
780 return LoadLibraryExW(libnameW
, 0, 0);
783 /***********************************************************************
784 * FreeLibrary (KERNEL32.@)
785 * FreeLibrary32 (KERNEL.486)
787 * Free a dll loaded into the process address space.
790 * hLibModule [I] Handle to the dll returned by LoadLibraryA().
793 * Success: TRUE. The dll is removed if it is not still in use.
794 * Failure: FALSE. Use GetLastError() to determine the cause.
796 BOOL WINAPI
FreeLibrary(HINSTANCE hLibModule
)
803 SetLastError( ERROR_INVALID_HANDLE
);
807 if ((ULONG_PTR
)hLibModule
& 1)
809 /* this is a LOAD_LIBRARY_AS_DATAFILE module */
810 char *ptr
= (char *)hLibModule
- 1;
811 UnmapViewOfFile( ptr
);
815 if ((nts
= LdrUnloadDll( hLibModule
)) == STATUS_SUCCESS
) retv
= TRUE
;
816 else SetLastError( RtlNtStatusToDosError( nts
) );
821 /***********************************************************************
822 * GetProcAddress (KERNEL32.@)
824 * Find the address of an exported symbol in a loaded dll.
827 * hModule [I] Handle to the dll returned by LoadLibraryA().
828 * function [I] Name of the symbol, or an integer ordinal number < 16384
831 * Success: A pointer to the symbol in the process address space.
832 * Failure: NULL. Use GetLastError() to determine the cause.
834 FARPROC WINAPI
GetProcAddress( HMODULE hModule
, LPCSTR function
)
839 if (HIWORD(function
))
843 RtlInitAnsiString( &str
, function
);
844 nts
= LdrGetProcedureAddress( hModule
, &str
, 0, (void**)&fp
);
847 nts
= LdrGetProcedureAddress( hModule
, NULL
, (DWORD
)function
, (void**)&fp
);
848 if (nts
!= STATUS_SUCCESS
)
850 SetLastError( RtlNtStatusToDosError( nts
) );
856 /***********************************************************************
857 * GetProcAddress32 (KERNEL.453)
859 * Find the address of an exported symbol in a loaded dll.
862 * hModule [I] Handle to the dll returned by LoadLibraryA().
863 * function [I] Name of the symbol, or an integer ordinal number < 16384
866 * Success: A pointer to the symbol in the process address space.
867 * Failure: NULL. Use GetLastError() to determine the cause.
869 FARPROC WINAPI
GetProcAddress32_16( HMODULE hModule
, LPCSTR function
)
871 /* FIXME: we used to disable snoop when returning proc for Win16 subsystem */
872 return GetProcAddress( hModule
, function
);