2002-03-10 00:29:33 +01:00
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/*
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* Copyright 2002 Dmitry Timoshkov for Codeweavers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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2002-01-29 19:30:16 +01:00
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#include "winbase.h"
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#include "winnt.h"
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2002-09-13 00:07:02 +02:00
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#include "winternl.h"
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2002-06-10 04:28:00 +02:00
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#include "module.h"
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2003-03-07 00:41:37 +01:00
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#include "file.h"
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2002-08-16 00:09:53 +02:00
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#include "wine/exception.h"
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2002-12-13 00:34:01 +01:00
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#include "excpt.h"
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2002-06-10 04:28:00 +02:00
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(ntdll);
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2002-01-29 19:30:16 +01:00
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2002-08-16 00:09:53 +02:00
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/* filter for page-fault exceptions */
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static WINE_EXCEPTION_FILTER(page_fault)
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{
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if (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION)
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return EXCEPTION_EXECUTE_HANDLER;
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return EXCEPTION_CONTINUE_SEARCH;
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}
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2003-03-04 05:36:56 +01:00
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/******************************************************************
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* LdrDisableThreadCalloutsForDll (NTDLL.@)
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*
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*/
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NTSTATUS WINAPI LdrDisableThreadCalloutsForDll(HMODULE hModule)
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2002-01-29 19:30:16 +01:00
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{
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2003-03-04 05:36:56 +01:00
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WINE_MODREF *wm;
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NTSTATUS ret = STATUS_SUCCESS;
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RtlEnterCriticalSection( &loader_section );
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wm = MODULE32_LookupHMODULE( hModule );
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if ( !wm )
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ret = STATUS_DLL_NOT_FOUND;
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2002-01-29 19:30:16 +01:00
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else
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2003-03-04 05:36:56 +01:00
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wm->flags |= WINE_MODREF_NO_DLL_CALLS;
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RtlLeaveCriticalSection( &loader_section );
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return ret;
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2002-01-29 19:30:16 +01:00
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}
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2002-06-10 04:28:00 +02:00
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2003-03-07 00:41:37 +01:00
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/**********************************************************************
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* MODULE_FindModule
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*
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* Find a (loaded) win32 module depending on path
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* LPCSTR path: [in] pathname of module/library to be found
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*
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* The loader_section must be locked while calling this function
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* RETURNS
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* the module handle if found
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* 0 if not
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*/
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WINE_MODREF *MODULE_FindModule(LPCSTR path)
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{
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WINE_MODREF *wm;
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char dllname[260], *p;
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/* Append .DLL to name if no extension present */
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strcpy( dllname, path );
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if (!(p = strrchr( dllname, '.')) || strchr( p, '/' ) || strchr( p, '\\'))
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strcat( dllname, ".DLL" );
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for ( wm = MODULE_modref_list; wm; wm = wm->next )
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{
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if ( !FILE_strcasecmp( dllname, wm->modname ) )
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break;
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if ( !FILE_strcasecmp( dllname, wm->filename ) )
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break;
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if ( !FILE_strcasecmp( dllname, wm->short_modname ) )
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break;
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if ( !FILE_strcasecmp( dllname, wm->short_filename ) )
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break;
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}
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return wm;
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}
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2002-06-10 04:28:00 +02:00
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2003-03-07 00:41:37 +01:00
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/******************************************************************
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* LdrGetDllHandle (NTDLL.@)
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*
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*
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*/
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2003-03-04 05:36:56 +01:00
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NTSTATUS WINAPI LdrGetDllHandle(ULONG x, ULONG y, PUNICODE_STRING name, HMODULE *base)
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2002-06-10 04:28:00 +02:00
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{
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WINE_MODREF *wm;
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2003-03-07 00:41:37 +01:00
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TRACE("%08lx %08lx %s %p\n",
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x, y, name ? debugstr_wn(name->Buffer, name->Length) : NULL, base);
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if (x != 0 || y != 0)
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FIXME("Unknown behavior, please report\n");
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/* FIXME: we should store module name information as unicode */
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if (name)
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{
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STRING str;
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RtlUnicodeStringToAnsiString( &str, name, TRUE );
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2002-06-10 04:28:00 +02:00
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2003-03-07 00:41:37 +01:00
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wm = MODULE_FindModule( str.Buffer );
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RtlFreeAnsiString( &str );
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}
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else
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wm = exe_modref;
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2002-06-10 04:28:00 +02:00
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2003-03-07 00:41:37 +01:00
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if (!wm)
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{
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*base = 0;
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2002-06-10 04:28:00 +02:00
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return STATUS_DLL_NOT_FOUND;
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2003-03-07 00:41:37 +01:00
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}
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2002-06-10 04:28:00 +02:00
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2003-03-07 00:41:37 +01:00
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*base = wm->module;
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2002-06-10 04:28:00 +02:00
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return STATUS_SUCCESS;
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}
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2003-03-07 00:41:37 +01:00
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/***********************************************************************
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* MODULE_GetProcAddress (internal)
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*/
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FARPROC MODULE_GetProcAddress(
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HMODULE hModule, /* [in] current module handle */
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LPCSTR function, /* [in] function to be looked up */
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int hint,
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BOOL snoop )
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{
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WINE_MODREF *wm;
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FARPROC retproc = 0;
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2002-06-10 04:28:00 +02:00
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2003-03-07 00:41:37 +01:00
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if (HIWORD(function))
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TRACE("(%p,%s (%d))\n",hModule,function,hint);
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else
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TRACE("(%p,%p)\n",hModule,function);
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RtlEnterCriticalSection( &loader_section );
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if ((wm = MODULE32_LookupHMODULE( hModule )))
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{
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retproc = wm->find_export( wm, function, hint, snoop );
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if (!retproc) SetLastError(ERROR_PROC_NOT_FOUND);
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}
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RtlLeaveCriticalSection( &loader_section );
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return retproc;
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}
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/******************************************************************
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* LdrGetProcedureAddress (NTDLL.@)
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*
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*
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*/
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2003-03-04 05:36:56 +01:00
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NTSTATUS WINAPI LdrGetProcedureAddress(HMODULE base, PANSI_STRING name, ULONG ord, PVOID *address)
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2002-06-10 04:28:00 +02:00
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{
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2003-03-07 00:41:37 +01:00
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WARN("%p %s %ld %p\n", base, name ? debugstr_an(name->Buffer, name->Length) : NULL, ord, address);
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2002-06-10 04:28:00 +02:00
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2003-03-07 00:41:37 +01:00
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*address = MODULE_GetProcAddress( base, name ? name->Buffer : (LPSTR)ord, -1, TRUE );
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2002-06-10 04:28:00 +02:00
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return (*address) ? STATUS_SUCCESS : STATUS_DLL_NOT_FOUND;
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}
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2002-08-09 21:57:38 +02:00
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2003-03-04 05:36:56 +01:00
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/******************************************************************
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* LdrShutdownProcess (NTDLL.@)
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*
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*/
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NTSTATUS WINAPI LdrShutdownProcess(void)
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{
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TRACE("()\n");
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MODULE_DllProcessDetach( TRUE, (LPVOID)1 );
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return STATUS_SUCCESS; /* FIXME */
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}
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/******************************************************************
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* LdrShutdownThread (NTDLL.@)
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*
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*/
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NTSTATUS WINAPI LdrShutdownThread(void)
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{
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WINE_MODREF *wm;
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TRACE("()\n");
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/* don't do any detach calls if process is exiting */
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if (process_detaching) return STATUS_SUCCESS;
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/* FIXME: there is still a race here */
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RtlEnterCriticalSection( &loader_section );
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for ( wm = MODULE_modref_list; wm; wm = wm->next )
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{
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if ( !(wm->flags & WINE_MODREF_PROCESS_ATTACHED) )
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continue;
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if ( wm->flags & WINE_MODREF_NO_DLL_CALLS )
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continue;
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MODULE_InitDLL( wm, DLL_THREAD_DETACH, NULL );
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}
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RtlLeaveCriticalSection( &loader_section );
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return STATUS_SUCCESS; /* FIXME */
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}
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2002-08-09 21:57:38 +02:00
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/***********************************************************************
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* RtlImageNtHeader (NTDLL.@)
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*/
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PIMAGE_NT_HEADERS WINAPI RtlImageNtHeader(HMODULE hModule)
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{
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2002-08-16 00:09:53 +02:00
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IMAGE_NT_HEADERS *ret;
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2002-08-09 21:57:38 +02:00
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2002-08-16 00:09:53 +02:00
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__TRY
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{
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IMAGE_DOS_HEADER *dos = (IMAGE_DOS_HEADER *)hModule;
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ret = NULL;
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if (dos->e_magic == IMAGE_DOS_SIGNATURE)
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{
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ret = (IMAGE_NT_HEADERS *)((char *)dos + dos->e_lfanew);
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if (ret->Signature != IMAGE_NT_SIGNATURE) ret = NULL;
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}
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}
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__EXCEPT(page_fault)
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2002-08-09 21:57:38 +02:00
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{
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2002-08-16 00:09:53 +02:00
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return NULL;
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2002-08-09 21:57:38 +02:00
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}
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2002-08-16 00:09:53 +02:00
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__ENDTRY
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2002-08-09 21:57:38 +02:00
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return ret;
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}
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/***********************************************************************
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* RtlImageDirectoryEntryToData (NTDLL.@)
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*/
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PVOID WINAPI RtlImageDirectoryEntryToData( HMODULE module, BOOL image, WORD dir, ULONG *size )
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{
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const IMAGE_NT_HEADERS *nt;
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DWORD addr;
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if ((ULONG_PTR)module & 1) /* mapped as data file */
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{
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module = (HMODULE)((ULONG_PTR)module & ~1);
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image = FALSE;
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}
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if (!(nt = RtlImageNtHeader( module ))) return NULL;
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if (dir >= nt->OptionalHeader.NumberOfRvaAndSizes) return NULL;
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if (!(addr = nt->OptionalHeader.DataDirectory[dir].VirtualAddress)) return NULL;
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*size = nt->OptionalHeader.DataDirectory[dir].Size;
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if (image || addr < nt->OptionalHeader.SizeOfHeaders) return (char *)module + addr;
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/* not mapped as image, need to find the section containing the virtual address */
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return RtlImageRvaToVa( nt, module, addr, NULL );
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}
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/***********************************************************************
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* RtlImageRvaToSection (NTDLL.@)
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*/
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PIMAGE_SECTION_HEADER WINAPI RtlImageRvaToSection( const IMAGE_NT_HEADERS *nt,
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HMODULE module, DWORD rva )
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{
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int i;
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IMAGE_SECTION_HEADER *sec = (IMAGE_SECTION_HEADER*)((char*)&nt->OptionalHeader +
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nt->FileHeader.SizeOfOptionalHeader);
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for (i = 0; i < nt->FileHeader.NumberOfSections; i++, sec++)
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{
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if ((sec->VirtualAddress <= rva) && (sec->VirtualAddress + sec->SizeOfRawData > rva))
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return sec;
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}
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return NULL;
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}
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/***********************************************************************
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* RtlImageRvaToVa (NTDLL.@)
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*/
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PVOID WINAPI RtlImageRvaToVa( const IMAGE_NT_HEADERS *nt, HMODULE module,
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DWORD rva, IMAGE_SECTION_HEADER **section )
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{
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IMAGE_SECTION_HEADER *sec;
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if (section && *section) /* try this section first */
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{
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sec = *section;
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if ((sec->VirtualAddress <= rva) && (sec->VirtualAddress + sec->SizeOfRawData > rva))
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goto found;
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}
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if (!(sec = RtlImageRvaToSection( nt, module, rva ))) return NULL;
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found:
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if (section) *section = sec;
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return (char *)module + sec->PointerToRawData + (rva - sec->VirtualAddress);
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}
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