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wine/loader/module.c
Bertho Stultiens 1b34697ad3 FreeLibrary partial implementation.
1999-04-11 14:52:24 +00:00

1552 lines
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/*
* Modules
*
* Copyright 1995 Alexandre Julliard
*/
#include <assert.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <unistd.h>
#include "wine/winuser16.h"
#include "wine/winbase16.h"
#include "windef.h"
#include "winerror.h"
#include "class.h"
#include "file.h"
#include "global.h"
#include "heap.h"
#include "module.h"
#include "neexe.h"
#include "pe_image.h"
#include "dosexe.h"
#include "process.h"
#include "thread.h"
#include "selectors.h"
#include "stackframe.h"
#include "task.h"
#include "debug.h"
#include "callback.h"
/*************************************************************************
* MODULE32_LookupHMODULE
* looks for the referenced HMODULE in the current process
*/
WINE_MODREF *MODULE32_LookupHMODULE( HMODULE hmod )
{
WINE_MODREF *wm;
if (!hmod)
return PROCESS_Current()->exe_modref;
if (!HIWORD(hmod)) {
ERR(module,"tried to lookup 0x%04x in win32 module handler!\n",hmod);
return NULL;
}
for ( wm = PROCESS_Current()->modref_list; wm; wm=wm->next )
if (wm->module == hmod)
return wm;
return NULL;
}
/*************************************************************************
* MODULE_InitializeDLLs
*
* Call the initialization routines of all DLLs belonging to the
* current process. This is somewhat complicated due to the fact that
*
* - we have to respect the module dependencies, i.e. modules implicitly
* referenced by another module have to be initialized before the module
* itself can be initialized
*
* - the initialization routine of a DLL can itself call LoadLibrary,
* thereby introducing a whole new set of dependencies (even involving
* the 'old' modules) at any time during the whole process
*
* (Note that this routine can be recursively entered not only directly
* from itself, but also via LoadLibrary from one of the called initialization
* routines.)
*/
static void MODULE_DoInitializeDLLs( WINE_MODREF *wm,
DWORD type, LPVOID lpReserved )
{
WINE_MODREF *xwm;
int i, skip = FALSE;
assert( wm && !(wm->flags & WINE_MODREF_MARKER) );
TRACE( module, "(%s,%08x,%ld,%p) - START\n",
wm->modname, wm->module, type, lpReserved );
/* Tag current MODREF to prevent recursive loop */
wm->flags |= WINE_MODREF_MARKER;
switch ( type )
{
default:
case DLL_PROCESS_ATTACH:
case DLL_THREAD_ATTACH:
/* Recursively attach all DLLs this one depends on */
for ( i = 0; i < wm->nDeps; i++ )
if ( wm->deps[i] && !(wm->deps[i]->flags & WINE_MODREF_MARKER) )
MODULE_DoInitializeDLLs( wm->deps[i], type, lpReserved );
break;
case DLL_PROCESS_DETACH:
case DLL_THREAD_DETACH:
/* Recursively detach all DLLs that depend on this one */
for ( xwm = PROCESS_Current()->modref_list; xwm; xwm = xwm->next )
if ( !(xwm->flags & WINE_MODREF_MARKER) )
for ( i = 0; i < xwm->nDeps; i++ )
if ( xwm->deps[i] == wm )
{
MODULE_DoInitializeDLLs( xwm, type, lpReserved );
break;
}
break;
}
/* Evaluate module flags */
if ( ( wm->flags & WINE_MODREF_NO_DLL_CALLS )
|| ( wm->flags & WINE_MODREF_DONT_RESOLVE_REFS )
|| ( wm->flags & WINE_MODREF_LOAD_AS_DATAFILE ) )
skip = TRUE;
if ( type == DLL_PROCESS_ATTACH )
if ( wm->flags & WINE_MODREF_PROCESS_ATTACHED )
skip = TRUE;
else
wm->flags |= WINE_MODREF_PROCESS_ATTACHED;
if ( type == DLL_PROCESS_DETACH )
if ( wm->flags & WINE_MODREF_PROCESS_DETACHED )
skip = TRUE;
else
wm->flags |= WINE_MODREF_PROCESS_DETACHED;
if ( !skip )
{
/* Now we can call the initialization routine */
TRACE( module, "(%s,%08x,%ld,%p) - CALL\n",
wm->modname, wm->module, type, lpReserved );
switch ( wm->type )
{
case MODULE32_PE:
PE_InitDLL( wm, type, lpReserved );
break;
case MODULE32_ELF:
/* no need to do that, dlopen() already does */
break;
default:
ERR(module, "wine_modref type %d not handled.\n", wm->type);
break;
}
}
TRACE( module, "(%s,%08x,%ld,%p) - END\n",
wm->modname, wm->module, type, lpReserved );
}
void MODULE_InitializeDLLs( HMODULE root, DWORD type, LPVOID lpReserved )
{
BOOL inProgress = FALSE;
WINE_MODREF *wm;
/* Grab the process critical section to protect the recursion flags */
/* FIXME: This is probably overkill! */
EnterCriticalSection( &PROCESS_Current()->crit_section );
TRACE( module, "(%08x,%ld,%p) - START\n", root, type, lpReserved );
/* First, check whether initialization is currently in progress */
for ( wm = PROCESS_Current()->modref_list; wm; wm = wm->next )
if ( wm->flags & WINE_MODREF_MARKER )
{
inProgress = TRUE;
break;
}
if ( inProgress )
{
/*
* If this a LoadLibrary call from within an initialization routine,
* treat it analogously to an implicitly referenced DLL.
* Anything else may not happen at this point!
*/
if ( root )
{
wm = MODULE32_LookupHMODULE( root );
if ( wm && !(wm->flags & WINE_MODREF_MARKER) )
MODULE_DoInitializeDLLs( wm, type, lpReserved );
}
else
FIXME(module, "Invalid recursion!\n");
}
else
{
/* If we arrive here, this is the start of an initialization run */
if ( !root )
{
/* If called for main EXE, initialize all DLLs */
switch ( type )
{
default: /* Hmmm. */
case DLL_PROCESS_ATTACH:
case DLL_THREAD_ATTACH:
for ( wm = PROCESS_Current()->modref_list; wm; wm = wm->next )
if ( !wm->next )
break;
for ( ; wm; wm = wm->prev )
if ( !(wm->flags & WINE_MODREF_MARKER) )
MODULE_DoInitializeDLLs( wm, type, lpReserved );
break;
case DLL_PROCESS_DETACH:
case DLL_THREAD_DETACH:
for ( wm = PROCESS_Current()->modref_list; wm; wm = wm->next )
if ( !(wm->flags & WINE_MODREF_MARKER) )
MODULE_DoInitializeDLLs( wm, type, lpReserved );
break;
}
}
else
{
/* If called for a specific DLL, initialize only it and its children */
wm = MODULE32_LookupHMODULE( root );
if (wm) MODULE_DoInitializeDLLs( wm, type, lpReserved );
}
/* We're finished, so we reset all recursion flags */
for ( wm = PROCESS_Current()->modref_list; wm; wm = wm->next )
wm->flags &= ~WINE_MODREF_MARKER;
}
TRACE( module, "(%08x,%ld,%p) - END\n", root, type, lpReserved );
/* Release critical section */
LeaveCriticalSection( &PROCESS_Current()->crit_section );
}
/****************************************************************************
* DisableThreadLibraryCalls (KERNEL32.74)
*
* Don't call DllEntryPoint for DLL_THREAD_{ATTACH,DETACH} if set.
*/
BOOL WINAPI DisableThreadLibraryCalls( HMODULE hModule )
{
WINE_MODREF *wm = MODULE32_LookupHMODULE( hModule );
if ( !wm ) return FALSE;
wm->flags |= WINE_MODREF_NO_DLL_CALLS;
return TRUE;
}
/****************************************************************************
* MODULE_IncRefCount
*/
static void MODULE_IncRefCount( HMODULE hModule )
{
WINE_MODREF *wm;
EnterCriticalSection( &PROCESS_Current()->crit_section );
wm = MODULE32_LookupHMODULE( hModule );
if( wm )
{
wm->refCount++;
TRACE(module, "(%08x) count now %d\n", hModule, wm->refCount);
}
LeaveCriticalSection( &PROCESS_Current()->crit_section );
}
/****************************************************************************
* MODULE_DecRefCount
*/
static int MODULE_DecRefCount( HMODULE hModule )
{
int retv = 0;
WINE_MODREF *wm;
EnterCriticalSection( &PROCESS_Current()->crit_section );
wm = MODULE32_LookupHMODULE( hModule );
if( wm && ( retv = wm->refCount ) > 0 )
{
wm->refCount--;
TRACE(module, "(%08x) count now %d\n", hModule, wm->refCount);
}
LeaveCriticalSection( &PROCESS_Current()->crit_section );
return retv;
}
/***********************************************************************
* MODULE_CreateDummyModule
*
* Create a dummy NE module for Win32 or Winelib.
*/
HMODULE MODULE_CreateDummyModule( const OFSTRUCT *ofs, LPCSTR modName )
{
HMODULE hModule;
NE_MODULE *pModule;
SEGTABLEENTRY *pSegment;
char *pStr,*s;
int len;
const char* basename;
INT of_size = sizeof(OFSTRUCT) - sizeof(ofs->szPathName)
+ strlen(ofs->szPathName) + 1;
INT size = sizeof(NE_MODULE) +
/* loaded file info */
of_size +
/* segment table: DS,CS */
2 * sizeof(SEGTABLEENTRY) +
/* name table */
9 +
/* several empty tables */
8;
hModule = GlobalAlloc16( GMEM_MOVEABLE | GMEM_ZEROINIT, size );
if (!hModule) return (HMODULE)11; /* invalid exe */
FarSetOwner16( hModule, hModule );
pModule = (NE_MODULE *)GlobalLock16( hModule );
/* Set all used entries */
pModule->magic = IMAGE_OS2_SIGNATURE;
pModule->count = 1;
pModule->next = 0;
pModule->flags = 0;
pModule->dgroup = 0;
pModule->ss = 1;
pModule->cs = 2;
pModule->heap_size = 0;
pModule->stack_size = 0;
pModule->seg_count = 2;
pModule->modref_count = 0;
pModule->nrname_size = 0;
pModule->fileinfo = sizeof(NE_MODULE);
pModule->os_flags = NE_OSFLAGS_WINDOWS;
pModule->expected_version = 0x030a;
pModule->self = hModule;
/* Set loaded file information */
memcpy( pModule + 1, ofs, of_size );
((OFSTRUCT *)(pModule+1))->cBytes = of_size - 1;
pSegment = (SEGTABLEENTRY*)((char*)(pModule + 1) + of_size);
pModule->seg_table = (int)pSegment - (int)pModule;
/* Data segment */
pSegment->size = 0;
pSegment->flags = NE_SEGFLAGS_DATA;
pSegment->minsize = 0x1000;
pSegment++;
/* Code segment */
pSegment->flags = 0;
pSegment++;
/* Module name */
pStr = (char *)pSegment;
pModule->name_table = (int)pStr - (int)pModule;
if ( modName )
basename = modName;
else
{
basename = strrchr(ofs->szPathName,'\\');
if (!basename) basename = ofs->szPathName;
else basename++;
}
len = strlen(basename);
if ((s = strchr(basename,'.'))) len = s - basename;
if (len > 8) len = 8;
*pStr = len;
strncpy( pStr+1, basename, len );
if (len < 8) pStr[len+1] = 0;
pStr += 9;
/* All tables zero terminated */
pModule->res_table = pModule->import_table = pModule->entry_table =
(int)pStr - (int)pModule;
NE_RegisterModule( pModule );
return hModule;
}
/***********************************************************************
* MODULE_GetWndProcEntry16 (not a Windows API function)
*
* Return an entry point from the WPROCS dll.
*/
FARPROC16 MODULE_GetWndProcEntry16( LPCSTR name )
{
FARPROC16 ret = NULL;
if (__winelib)
{
/* FIXME: hack for Winelib */
extern LRESULT ColorDlgProc16(HWND16,UINT16,WPARAM16,LPARAM);
extern LRESULT FileOpenDlgProc16(HWND16,UINT16,WPARAM16,LPARAM);
extern LRESULT FileSaveDlgProc16(HWND16,UINT16,WPARAM16,LPARAM);
extern LRESULT FindTextDlgProc16(HWND16,UINT16,WPARAM16,LPARAM);
extern LRESULT PrintDlgProc16(HWND16,UINT16,WPARAM16,LPARAM);
extern LRESULT PrintSetupDlgProc16(HWND16,UINT16,WPARAM16,LPARAM);
extern LRESULT ReplaceTextDlgProc16(HWND16,UINT16,WPARAM16,LPARAM);
if (!strcmp(name,"ColorDlgProc"))
return (FARPROC16)ColorDlgProc16;
if (!strcmp(name,"FileOpenDlgProc"))
return (FARPROC16)FileOpenDlgProc16;
if (!strcmp(name,"FileSaveDlgProc"))
return (FARPROC16)FileSaveDlgProc16;
if (!strcmp(name,"FindTextDlgProc"))
return (FARPROC16)FindTextDlgProc16;
if (!strcmp(name,"PrintDlgProc"))
return (FARPROC16)PrintDlgProc16;
if (!strcmp(name,"PrintSetupDlgProc"))
return (FARPROC16)PrintSetupDlgProc16;
if (!strcmp(name,"ReplaceTextDlgProc"))
return (FARPROC16)ReplaceTextDlgProc16;
FIXME(module,"No mapping for %s(), add one in library/miscstubs.c\n",name);
assert( FALSE );
return NULL;
}
else
{
WORD ordinal;
static HMODULE hModule = 0;
if (!hModule) hModule = GetModuleHandle16( "WPROCS" );
ordinal = NE_GetOrdinal( hModule, name );
if (!(ret = NE_GetEntryPoint( hModule, ordinal )))
{
WARN( module, "%s not found\n", name );
assert( FALSE );
}
}
return ret;
}
/**********************************************************************
* MODULE_FindModule32
*
* Find a (loaded) win32 module depending on path
* The handling of '.' is a bit weird, but we need it that way,
* for sometimes the programs use '<name>.exe' and '<name>.dll' and
* this is the only way to differentiate. (mainly hypertrm.exe)
*
* RETURNS
* the module handle if found
* 0 if not
*/
HMODULE MODULE_FindModule(
LPCSTR path /* [in] pathname of module/library to be found */
) {
LPSTR filename;
LPSTR dotptr;
WINE_MODREF *wm;
if (!(filename = strrchr( path, '\\' )))
filename = HEAP_strdupA( GetProcessHeap(), 0, path );
else
filename = HEAP_strdupA( GetProcessHeap(), 0, filename+1 );
dotptr=strrchr(filename,'.');
for ( wm = PROCESS_Current()->modref_list; wm; wm=wm->next ) {
LPSTR xmodname,xdotptr;
assert (wm->modname);
xmodname = HEAP_strdupA( GetProcessHeap(), 0, wm->modname );
xdotptr=strrchr(xmodname,'.');
if ( (xdotptr && !dotptr) ||
(!xdotptr && dotptr)
) {
if (dotptr) *dotptr = '\0';
if (xdotptr) *xdotptr = '\0';
}
if (!strcasecmp( filename, xmodname)) {
HeapFree( GetProcessHeap(), 0, filename );
HeapFree( GetProcessHeap(), 0, xmodname );
return wm->module;
}
if (dotptr) *dotptr='.';
/* FIXME: add paths, shortname */
HeapFree( GetProcessHeap(), 0, xmodname );
}
/* if that fails, try looking for the filename... */
for ( wm = PROCESS_Current()->modref_list; wm; wm=wm->next ) {
LPSTR xlname,xdotptr;
assert (wm->longname);
xlname = strrchr(wm->longname,'\\');
if (!xlname)
xlname = wm->longname;
else
xlname++;
xlname = HEAP_strdupA( GetProcessHeap(), 0, xlname );
xdotptr=strrchr(xlname,'.');
if ( (xdotptr && !dotptr) ||
(!xdotptr && dotptr)
) {
if (dotptr) *dotptr = '\0';
if (xdotptr) *xdotptr = '\0';
}
if (!strcasecmp( filename, xlname)) {
HeapFree( GetProcessHeap(), 0, filename );
HeapFree( GetProcessHeap(), 0, xlname );
return wm->module;
}
if (dotptr) *dotptr='.';
/* FIXME: add paths, shortname */
HeapFree( GetProcessHeap(), 0, xlname );
}
HeapFree( GetProcessHeap(), 0, filename );
return 0;
}
/***********************************************************************
* MODULE_GetBinaryType
*
* The GetBinaryType function determines whether a file is executable
* or not and if it is it returns what type of executable it is.
* The type of executable is a property that determines in which
* subsystem an executable file runs under.
*
* Binary types returned:
* SCS_32BIT_BINARY: A Win32 based application
* SCS_DOS_BINARY: An MS-Dos based application
* SCS_WOW_BINARY: A Win16 based application
* SCS_PIF_BINARY: A PIF file that executes an MS-Dos based app
* SCS_POSIX_BINARY: A POSIX based application ( Not implemented )
* SCS_OS216_BINARY: A 16bit OS/2 based application ( Not implemented )
*
* Returns TRUE if the file is an executable in which case
* the value pointed by lpBinaryType is set.
* Returns FALSE if the file is not an executable or if the function fails.
*
* To do so it opens the file and reads in the header information
* if the extended header information is not presend it will
* assume that that the file is a DOS executable.
* If the extended header information is present it will
* determine if the file is an 16 or 32 bit Windows executable
* by check the flags in the header.
*
* Note that .COM and .PIF files are only recognized by their
* file name extension; but Windows does it the same way ...
*/
static BOOL MODULE_GetBinaryType( HFILE hfile, OFSTRUCT *ofs,
LPDWORD lpBinaryType )
{
IMAGE_DOS_HEADER mz_header;
char magic[4], *ptr;
/* Seek to the start of the file and read the DOS header information.
*/
if ( _llseek( hfile, 0, SEEK_SET ) >= 0 &&
_lread( hfile, &mz_header, sizeof(mz_header) ) == sizeof(mz_header) )
{
/* Now that we have the header check the e_magic field
* to see if this is a dos image.
*/
if ( mz_header.e_magic == IMAGE_DOS_SIGNATURE )
{
BOOL lfanewValid = FALSE;
/* We do have a DOS image so we will now try to seek into
* the file by the amount indicated by the field
* "Offset to extended header" and read in the
* "magic" field information at that location.
* This will tell us if there is more header information
* to read or not.
*/
/* But before we do we will make sure that header
* structure encompasses the "Offset to extended header"
* field.
*/
if ( (mz_header.e_cparhdr<<4) >= sizeof(IMAGE_DOS_HEADER) )
if ( ( mz_header.e_crlc == 0 && mz_header.e_lfarlc == 0 ) ||
( mz_header.e_lfarlc >= sizeof(IMAGE_DOS_HEADER) ) )
if ( mz_header.e_lfanew >= sizeof(IMAGE_DOS_HEADER) &&
_llseek( hfile, mz_header.e_lfanew, SEEK_SET ) >= 0 &&
_lread( hfile, magic, sizeof(magic) ) == sizeof(magic) )
lfanewValid = TRUE;
if ( !lfanewValid )
{
/* If we cannot read this "extended header" we will
* assume that we have a simple DOS executable.
*/
*lpBinaryType = SCS_DOS_BINARY;
return TRUE;
}
else
{
/* Reading the magic field succeeded so
* we will try to determine what type it is.
*/
if ( *(DWORD*)magic == IMAGE_NT_SIGNATURE )
{
/* This is an NT signature.
*/
*lpBinaryType = SCS_32BIT_BINARY;
return TRUE;
}
else if ( *(WORD*)magic == IMAGE_OS2_SIGNATURE )
{
/* The IMAGE_OS2_SIGNATURE indicates that the
* "extended header is a Windows executable (NE)
* header. This is a bit misleading, but it is
* documented in the SDK. ( for more details see
* the neexe.h file )
*/
*lpBinaryType = SCS_WOW_BINARY;
return TRUE;
}
else
{
/* Unknown extended header, so abort.
*/
return FALSE;
}
}
}
}
/* If we get here, we don't even have a correct MZ header.
* Try to check the file extension for known types ...
*/
ptr = strrchr( ofs->szPathName, '.' );
if ( ptr && !strchr( ptr, '\\' ) && !strchr( ptr, '/' ) )
{
if ( !lstrcmpiA( ptr, ".COM" ) )
{
*lpBinaryType = SCS_DOS_BINARY;
return TRUE;
}
if ( !lstrcmpiA( ptr, ".PIF" ) )
{
*lpBinaryType = SCS_PIF_BINARY;
return TRUE;
}
}
return FALSE;
}
/***********************************************************************
* GetBinaryTypeA [KERNEL32.280]
*/
BOOL WINAPI GetBinaryTypeA( LPCSTR lpApplicationName, LPDWORD lpBinaryType )
{
BOOL ret = FALSE;
HFILE hfile;
OFSTRUCT ofs;
TRACE( win32, "%s\n", lpApplicationName );
/* Sanity check.
*/
if ( lpApplicationName == NULL || lpBinaryType == NULL )
return FALSE;
/* Open the file indicated by lpApplicationName for reading.
*/
if ( (hfile = OpenFile( lpApplicationName, &ofs, OF_READ )) == HFILE_ERROR )
return FALSE;
/* Check binary type
*/
ret = MODULE_GetBinaryType( hfile, &ofs, lpBinaryType );
/* Close the file.
*/
CloseHandle( hfile );
return ret;
}
/***********************************************************************
* GetBinaryTypeW [KERNEL32.281]
*/
BOOL WINAPI GetBinaryTypeW( LPCWSTR lpApplicationName, LPDWORD lpBinaryType )
{
BOOL ret = FALSE;
LPSTR strNew = NULL;
TRACE( win32, "%s\n", debugstr_w(lpApplicationName) );
/* Sanity check.
*/
if ( lpApplicationName == NULL || lpBinaryType == NULL )
return FALSE;
/* Convert the wide string to a ascii string.
*/
strNew = HEAP_strdupWtoA( GetProcessHeap(), 0, lpApplicationName );
if ( strNew != NULL )
{
ret = GetBinaryTypeA( strNew, lpBinaryType );
/* Free the allocated string.
*/
HeapFree( GetProcessHeap(), 0, strNew );
}
return ret;
}
/**********************************************************************
* MODULE_CreateUnixProcess
*/
static BOOL MODULE_CreateUnixProcess( LPCSTR filename, LPCSTR lpCmdLine,
LPSTARTUPINFOA lpStartupInfo,
LPPROCESS_INFORMATION lpProcessInfo,
BOOL useWine )
{
DOS_FULL_NAME full_name;
const char *unixfilename = filename;
const char *argv[256], **argptr;
BOOL iconic = FALSE;
/* Get Unix file name and iconic flag */
if ( lpStartupInfo->dwFlags & STARTF_USESHOWWINDOW )
if ( lpStartupInfo->wShowWindow == SW_SHOWMINIMIZED
|| lpStartupInfo->wShowWindow == SW_SHOWMINNOACTIVE )
iconic = TRUE;
if ( strchr(filename, '/')
|| strchr(filename, ':')
|| strchr(filename, '\\') )
{
if ( DOSFS_GetFullName( filename, TRUE, &full_name ) )
unixfilename = full_name.long_name;
}
if ( !unixfilename )
{
SetLastError( ERROR_FILE_NOT_FOUND );
return FALSE;
}
/* Build argument list */
argptr = argv;
if ( !useWine )
{
char *p = strdup(lpCmdLine);
*argptr++ = unixfilename;
if (iconic) *argptr++ = "-iconic";
while (1)
{
while (*p && (*p == ' ' || *p == '\t')) *p++ = '\0';
if (!*p) break;
*argptr++ = p;
while (*p && *p != ' ' && *p != '\t') p++;
}
}
else
{
*argptr++ = "wine";
if (iconic) *argptr++ = "-iconic";
*argptr++ = lpCmdLine;
}
*argptr++ = 0;
/* Fork and execute */
if ( !fork() )
{
/* Note: don't use Wine routines here, as this process
has not been correctly initialized! */
execvp( argv[0], (char**)argv );
/* Failed ! */
if ( useWine )
fprintf( stderr, "CreateProcess: can't exec 'wine %s'\n",
lpCmdLine );
exit( 1 );
}
/* Fake success return value */
memset( lpProcessInfo, '\0', sizeof( *lpProcessInfo ) );
lpProcessInfo->hProcess = INVALID_HANDLE_VALUE;
lpProcessInfo->hThread = INVALID_HANDLE_VALUE;
SetLastError( ERROR_SUCCESS );
return TRUE;
}
/***********************************************************************
* WinExec16 (KERNEL.166)
*/
HINSTANCE16 WINAPI WinExec16( LPCSTR lpCmdLine, UINT16 nCmdShow )
{
return WinExec( lpCmdLine, nCmdShow );
}
/***********************************************************************
* WinExec (KERNEL32.566)
*/
HINSTANCE WINAPI WinExec( LPCSTR lpCmdLine, UINT nCmdShow )
{
LOADPARAMS params;
UINT16 paramCmdShow[2];
if (!lpCmdLine)
return 2; /* File not found */
/* Set up LOADPARAMS buffer for LoadModule */
memset( &params, '\0', sizeof(params) );
params.lpCmdLine = (LPSTR)lpCmdLine;
params.lpCmdShow = paramCmdShow;
params.lpCmdShow[0] = 2;
params.lpCmdShow[1] = nCmdShow;
/* Now load the executable file */
return LoadModule( NULL, &params );
}
/**********************************************************************
* LoadModule (KERNEL32.499)
*/
HINSTANCE WINAPI LoadModule( LPCSTR name, LPVOID paramBlock )
{
LOADPARAMS *params = (LOADPARAMS *)paramBlock;
PROCESS_INFORMATION info;
STARTUPINFOA startup;
HINSTANCE hInstance;
PDB *pdb;
TDB *tdb;
memset( &startup, '\0', sizeof(startup) );
startup.cb = sizeof(startup);
startup.dwFlags = STARTF_USESHOWWINDOW;
startup.wShowWindow = params->lpCmdShow? params->lpCmdShow[1] : 0;
if ( !CreateProcessA( name, params->lpCmdLine,
NULL, NULL, FALSE, 0, params->lpEnvAddress,
NULL, &startup, &info ) )
{
hInstance = GetLastError();
if ( hInstance < 32 ) return hInstance;
FIXME( module, "Strange error set by CreateProcess: %d\n", hInstance );
return 11;
}
/* Get 16-bit hInstance/hTask from process */
pdb = PROCESS_IdToPDB( info.dwProcessId );
tdb = pdb? (TDB *)GlobalLock16( pdb->task ) : NULL;
hInstance = tdb && tdb->hInstance? tdb->hInstance : pdb? pdb->task : 0;
/* Close off the handles */
CloseHandle( info.hThread );
CloseHandle( info.hProcess );
return hInstance;
}
static void get_executable_name( LPCSTR line, LPSTR name, int namelen,
LPCSTR *after, BOOL extension )
{
int len = 0;
LPCSTR p = NULL, pcmd = NULL;
while ( *line == ' ' ) line++;
if ( *line == '"' )
{
line++; /* skip '"' */
if ((pcmd = strchr(line, '"'))) /* closing '"' available, too ? */
len = ++pcmd - line;
}
else
{
if((p = strchr(line, ' ')))
{
len = p - line;
pcmd = p+1;
}
else
len = strlen(line);
len++;
}
if(len > (namelen - 4)) len = namelen - 4;
lstrcpynA(name, line, len);
if(extension && (strrchr(name, '.') <= strrchr(name, '\\')) )
strcat(name, ".exe");
if (after) *after = pcmd;
}
/**********************************************************************
* CreateProcessA (KERNEL32.171)
*/
BOOL WINAPI CreateProcessA( LPCSTR lpApplicationName, LPSTR lpCommandLine,
LPSECURITY_ATTRIBUTES lpProcessAttributes,
LPSECURITY_ATTRIBUTES lpThreadAttributes,
BOOL bInheritHandles, DWORD dwCreationFlags,
LPVOID lpEnvironment, LPCSTR lpCurrentDirectory,
LPSTARTUPINFOA lpStartupInfo,
LPPROCESS_INFORMATION lpProcessInfo )
{
BOOL retv = FALSE;
HFILE hFile;
OFSTRUCT ofs;
DWORD type;
char name[256];
LPCSTR cmdline;
/* Get name and command line */
if (!lpApplicationName && !lpCommandLine)
{
SetLastError( ERROR_FILE_NOT_FOUND );
return FALSE;
}
name[0] = '\0';
if (lpApplicationName) {
get_executable_name( lpApplicationName, name, sizeof(name), NULL, TRUE );
}
else {
get_executable_name( lpCommandLine, name, sizeof ( name ), NULL, TRUE );
}
if (!lpCommandLine)
cmdline = lpApplicationName;
else cmdline = lpCommandLine;
/* Warn if unsupported features are used */
if (dwCreationFlags & DEBUG_PROCESS)
FIXME(module, "(%s,...): DEBUG_PROCESS ignored\n", name);
if (dwCreationFlags & DEBUG_ONLY_THIS_PROCESS)
FIXME(module, "(%s,...): DEBUG_ONLY_THIS_PROCESS ignored\n", name);
if (dwCreationFlags & CREATE_SUSPENDED)
FIXME(module, "(%s,...): CREATE_SUSPENDED ignored\n", name);
if (dwCreationFlags & DETACHED_PROCESS)
FIXME(module, "(%s,...): DETACHED_PROCESS ignored\n", name);
if (dwCreationFlags & CREATE_NEW_CONSOLE)
FIXME(module, "(%s,...): CREATE_NEW_CONSOLE ignored\n", name);
if (dwCreationFlags & NORMAL_PRIORITY_CLASS)
FIXME(module, "(%s,...): NORMAL_PRIORITY_CLASS ignored\n", name);
if (dwCreationFlags & IDLE_PRIORITY_CLASS)
FIXME(module, "(%s,...): IDLE_PRIORITY_CLASS ignored\n", name);
if (dwCreationFlags & HIGH_PRIORITY_CLASS)
FIXME(module, "(%s,...): HIGH_PRIORITY_CLASS ignored\n", name);
if (dwCreationFlags & REALTIME_PRIORITY_CLASS)
FIXME(module, "(%s,...): REALTIME_PRIORITY_CLASS ignored\n", name);
if (dwCreationFlags & CREATE_NEW_PROCESS_GROUP)
FIXME(module, "(%s,...): CREATE_NEW_PROCESS_GROUP ignored\n", name);
if (dwCreationFlags & CREATE_UNICODE_ENVIRONMENT)
FIXME(module, "(%s,...): CREATE_UNICODE_ENVIRONMENT ignored\n", name);
if (dwCreationFlags & CREATE_SEPARATE_WOW_VDM)
FIXME(module, "(%s,...): CREATE_SEPARATE_WOW_VDM ignored\n", name);
if (dwCreationFlags & CREATE_SHARED_WOW_VDM)
FIXME(module, "(%s,...): CREATE_SHARED_WOW_VDM ignored\n", name);
if (dwCreationFlags & CREATE_DEFAULT_ERROR_MODE)
FIXME(module, "(%s,...): CREATE_DEFAULT_ERROR_MODE ignored\n", name);
if (dwCreationFlags & CREATE_NO_WINDOW)
FIXME(module, "(%s,...): CREATE_NO_WINDOW ignored\n", name);
if (dwCreationFlags & PROFILE_USER)
FIXME(module, "(%s,...): PROFILE_USER ignored\n", name);
if (dwCreationFlags & PROFILE_KERNEL)
FIXME(module, "(%s,...): PROFILE_KERNEL ignored\n", name);
if (dwCreationFlags & PROFILE_SERVER)
FIXME(module, "(%s,...): PROFILE_SERVER ignored\n", name);
if (lpCurrentDirectory)
FIXME(module, "(%s,...): lpCurrentDirectory %s ignored\n",
name, lpCurrentDirectory);
if (lpStartupInfo->lpDesktop)
FIXME(module, "(%s,...): lpStartupInfo->lpDesktop %s ignored\n",
name, lpStartupInfo->lpDesktop);
if (lpStartupInfo->lpTitle)
FIXME(module, "(%s,...): lpStartupInfo->lpTitle %s ignored\n",
name, lpStartupInfo->lpTitle);
if (lpStartupInfo->dwFlags & STARTF_USECOUNTCHARS)
FIXME(module, "(%s,...): STARTF_USECOUNTCHARS (%ld,%ld) ignored\n",
name, lpStartupInfo->dwXCountChars, lpStartupInfo->dwYCountChars);
if (lpStartupInfo->dwFlags & STARTF_USEFILLATTRIBUTE)
FIXME(module, "(%s,...): STARTF_USEFILLATTRIBUTE %lx ignored\n",
name, lpStartupInfo->dwFillAttribute);
if (lpStartupInfo->dwFlags & STARTF_RUNFULLSCREEN)
FIXME(module, "(%s,...): STARTF_RUNFULLSCREEN ignored\n", name);
if (lpStartupInfo->dwFlags & STARTF_FORCEONFEEDBACK)
FIXME(module, "(%s,...): STARTF_FORCEONFEEDBACK ignored\n", name);
if (lpStartupInfo->dwFlags & STARTF_FORCEOFFFEEDBACK)
FIXME(module, "(%s,...): STARTF_FORCEOFFFEEDBACK ignored\n", name);
if (lpStartupInfo->dwFlags & STARTF_USEHOTKEY)
FIXME(module, "(%s,...): STARTF_USEHOTKEY ignored\n", name);
/* When in WineLib, always fork new Unix process */
if ( __winelib )
return MODULE_CreateUnixProcess( name, cmdline,
lpStartupInfo, lpProcessInfo, TRUE );
/* Check for special case: second instance of NE module */
lstrcpynA( ofs.szPathName, name, sizeof( ofs.szPathName ) );
retv = NE_CreateProcess( HFILE_ERROR, &ofs, cmdline, lpEnvironment,
lpProcessAttributes, lpThreadAttributes,
bInheritHandles, lpStartupInfo, lpProcessInfo );
/* Load file and create process */
if ( !retv )
{
/* Open file and determine executable type */
if ( (hFile = OpenFile( name, &ofs, OF_READ )) == HFILE_ERROR )
{
SetLastError( ERROR_FILE_NOT_FOUND );
return FALSE;
}
if ( !MODULE_GetBinaryType( hFile, &ofs, &type ) )
{
CloseHandle( hFile );
/* FIXME: Try Unix executable only when appropriate! */
if ( MODULE_CreateUnixProcess( name, cmdline,
lpStartupInfo, lpProcessInfo, FALSE ) )
return TRUE;
SetLastError( ERROR_BAD_FORMAT );
return FALSE;
}
/* Create process */
switch ( type )
{
case SCS_32BIT_BINARY:
retv = PE_CreateProcess( hFile, &ofs, cmdline, lpEnvironment,
lpProcessAttributes, lpThreadAttributes,
bInheritHandles, lpStartupInfo, lpProcessInfo );
break;
case SCS_DOS_BINARY:
retv = MZ_CreateProcess( hFile, &ofs, cmdline, lpEnvironment,
lpProcessAttributes, lpThreadAttributes,
bInheritHandles, lpStartupInfo, lpProcessInfo );
break;
case SCS_WOW_BINARY:
retv = NE_CreateProcess( hFile, &ofs, cmdline, lpEnvironment,
lpProcessAttributes, lpThreadAttributes,
bInheritHandles, lpStartupInfo, lpProcessInfo );
break;
case SCS_PIF_BINARY:
case SCS_POSIX_BINARY:
case SCS_OS216_BINARY:
FIXME( module, "Unsupported executable type: %ld\n", type );
/* fall through */
default:
SetLastError( ERROR_BAD_FORMAT );
retv = FALSE;
break;
}
CloseHandle( hFile );
}
return retv;
}
/**********************************************************************
* CreateProcessW (KERNEL32.172)
* NOTES
* lpReserved is not converted
*/
BOOL WINAPI CreateProcessW( LPCWSTR lpApplicationName, LPWSTR lpCommandLine,
LPSECURITY_ATTRIBUTES lpProcessAttributes,
LPSECURITY_ATTRIBUTES lpThreadAttributes,
BOOL bInheritHandles, DWORD dwCreationFlags,
LPVOID lpEnvironment, LPCWSTR lpCurrentDirectory,
LPSTARTUPINFOW lpStartupInfo,
LPPROCESS_INFORMATION lpProcessInfo )
{ BOOL ret;
STARTUPINFOA StartupInfoA;
LPSTR lpApplicationNameA = HEAP_strdupWtoA (GetProcessHeap(),0,lpApplicationName);
LPSTR lpCommandLineA = HEAP_strdupWtoA (GetProcessHeap(),0,lpCommandLine);
LPSTR lpCurrentDirectoryA = HEAP_strdupWtoA (GetProcessHeap(),0,lpCurrentDirectory);
memcpy (&StartupInfoA, lpStartupInfo, sizeof(STARTUPINFOA));
StartupInfoA.lpDesktop = HEAP_strdupWtoA (GetProcessHeap(),0,lpStartupInfo->lpDesktop);
StartupInfoA.lpTitle = HEAP_strdupWtoA (GetProcessHeap(),0,lpStartupInfo->lpTitle);
TRACE(win32, "(%s,%s,...)\n", debugstr_w(lpApplicationName), debugstr_w(lpCommandLine));
if (lpStartupInfo->lpReserved)
FIXME(win32,"StartupInfo.lpReserved is used, please report (%s)\n", debugstr_w(lpStartupInfo->lpReserved));
ret = CreateProcessA( lpApplicationNameA, lpCommandLineA,
lpProcessAttributes, lpThreadAttributes,
bInheritHandles, dwCreationFlags,
lpEnvironment, lpCurrentDirectoryA,
&StartupInfoA, lpProcessInfo );
HeapFree( GetProcessHeap(), 0, lpCurrentDirectoryA );
HeapFree( GetProcessHeap(), 0, lpCommandLineA );
HeapFree( GetProcessHeap(), 0, StartupInfoA.lpDesktop );
HeapFree( GetProcessHeap(), 0, StartupInfoA.lpTitle );
return ret;
}
/***********************************************************************
* GetModuleHandle (KERNEL32.237)
*/
HMODULE WINAPI GetModuleHandleA(LPCSTR module)
{
if (module == NULL)
return PROCESS_Current()->exe_modref->module;
else
return MODULE_FindModule( module );
}
HMODULE WINAPI GetModuleHandleW(LPCWSTR module)
{
HMODULE hModule;
LPSTR modulea = HEAP_strdupWtoA( GetProcessHeap(), 0, module );
hModule = GetModuleHandleA( modulea );
HeapFree( GetProcessHeap(), 0, modulea );
return hModule;
}
/***********************************************************************
* GetModuleFileName32A (KERNEL32.235)
*/
DWORD WINAPI GetModuleFileNameA(
HMODULE hModule, /* [in] module handle (32bit) */
LPSTR lpFileName, /* [out] filenamebuffer */
DWORD size /* [in] size of filenamebuffer */
) {
WINE_MODREF *wm = MODULE32_LookupHMODULE( hModule );
if (!wm) /* can happen on start up or the like */
return 0;
if (PE_HEADER(wm->module)->OptionalHeader.MajorOperatingSystemVersion >= 4.0)
lstrcpynA( lpFileName, wm->longname, size );
else
lstrcpynA( lpFileName, wm->shortname, size );
TRACE(module, "%s\n", lpFileName );
return strlen(lpFileName);
}
/***********************************************************************
* GetModuleFileName32W (KERNEL32.236)
*/
DWORD WINAPI GetModuleFileNameW( HMODULE hModule, LPWSTR lpFileName,
DWORD size )
{
LPSTR fnA = (char*)HeapAlloc( GetProcessHeap(), 0, size );
DWORD res = GetModuleFileNameA( hModule, fnA, size );
lstrcpynAtoW( lpFileName, fnA, size );
HeapFree( GetProcessHeap(), 0, fnA );
return res;
}
/***********************************************************************
* LoadLibraryEx32W (KERNEL.513)
* FIXME
*/
HMODULE WINAPI LoadLibraryEx32W16( LPCSTR libname, HANDLE16 hf,
DWORD flags )
{
TRACE(module,"(%s,%d,%08lx)\n",libname,hf,flags);
return LoadLibraryExA(libname, hf,flags);
}
/***********************************************************************
* LoadLibraryEx32A (KERNEL32)
*/
HMODULE WINAPI LoadLibraryExA(LPCSTR libname,HFILE hfile,DWORD flags)
{
HMODULE hmod;
if (!libname) {
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
hmod = MODULE_LoadLibraryExA( libname, hfile, flags );
if ( hmod >= 32 )
{
/* Initialize DLL just loaded */
MODULE_InitializeDLLs( hmod, DLL_PROCESS_ATTACH, NULL );
/* FIXME: check for failure, SLE(ERROR_DLL_INIT_FAILED) */
}
return hmod;
}
HMODULE MODULE_LoadLibraryExA( LPCSTR libname, HFILE hfile, DWORD flags )
{
HMODULE hmod;
hmod = ELF_LoadLibraryExA( libname, hfile, flags );
if(hmod < (HMODULE)32)
hmod = PE_LoadLibraryExA( libname, hfile, flags );
if(hmod >= (HMODULE)32)
{
/* Increment RefCount */
MODULE_IncRefCount( hmod );
}
return hmod;
}
/***********************************************************************
* LoadLibraryA (KERNEL32)
*/
HMODULE WINAPI LoadLibraryA(LPCSTR libname) {
return LoadLibraryExA(libname,0,0);
}
/***********************************************************************
* LoadLibraryW (KERNEL32)
*/
HMODULE WINAPI LoadLibraryW(LPCWSTR libnameW)
{
return LoadLibraryExW(libnameW,0,0);
}
/***********************************************************************
* LoadLibraryExW (KERNEL32)
*/
HMODULE WINAPI LoadLibraryExW(LPCWSTR libnameW,HFILE hfile,DWORD flags)
{
LPSTR libnameA = HEAP_strdupWtoA( GetProcessHeap(), 0, libnameW );
HMODULE ret = LoadLibraryExA( libnameA , hfile, flags );
HeapFree( GetProcessHeap(), 0, libnameA );
return ret;
}
/***********************************************************************
* MODULE_FreeLibrary (internal)
*
* Decrease the loadcount of the dll.
* If the count reaches 0, then notify the dll and free all dlls
* that depend on this one.
*
*/
static void MODULE_FreeLibrary(WINE_MODREF *wm, BOOL first)
{
int i;
assert(wm != NULL);
/* Don't do anything if there still are references */
if( MODULE_DecRefCount(wm->module) > 1 )
return;
TRACE( module, "(%s, %08x, %d) - START\n", wm->modname, wm->module, first);
/* Evaluate module flags */
if(!( ( wm->flags & WINE_MODREF_NO_DLL_CALLS )
|| ( wm->flags & WINE_MODREF_DONT_RESOLVE_REFS )
|| ( wm->flags & WINE_MODREF_LOAD_AS_DATAFILE ) ))
{
/* Now we can call the initialization routine */
TRACE( module, "(%s, %08x, %d) - CALL\n", wm->modname, wm->module, first);
switch ( wm->type )
{
case MODULE32_PE:
PE_InitDLL(wm, DLL_PROCESS_DETACH, (LPVOID)(first ? 0 : 1));
break;
case MODULE32_ELF:
FIXME(module, "FreeLibrary requested on ELF module '%s'\n", wm->modname);
break;
default:
ERR(module, "wine_modref type %d not handled.\n", wm->type);
break;
}
}
/* Recursively free all DLLs that depend on this one */
for( i = 0; i < wm->nDeps; i++ )
{
if(wm->deps[i])
{
MODULE_FreeLibrary(wm->deps[i], FALSE);
break;
}
}
/* Be sure that the freed library and the list head are unlinked properly */
if(PROCESS_Current()->modref_list == wm)
PROCESS_Current()->modref_list = wm->next;
if(wm->next)
wm->next->prev = wm->prev;
if(wm->prev)
wm->prev->next = wm->next;
FIXME(module,"should free memory of module %08x '%s'\n", wm->module, wm->modname);
TRACE( module, "(%s, %08x, %d) - END\n", wm->modname, wm->module, first);
}
/***********************************************************************
* FreeLibrary
*/
BOOL WINAPI FreeLibrary(HINSTANCE hLibModule)
{
WINE_MODREF *wm;
BOOL retval = TRUE;
EnterCriticalSection(&PROCESS_Current()->crit_section);
wm = MODULE32_LookupHMODULE(hLibModule);
if(!wm)
{
ERR(module, "(%08x) module not found in process' modref_list. Freed too many times?\n", hLibModule);
retval = FALSE;
}
else
MODULE_FreeLibrary(wm, TRUE); /* This always succeeds */
LeaveCriticalSection(&PROCESS_Current()->crit_section);
return retval;
}
/***********************************************************************
* FreeLibraryAndExitThread
*/
VOID WINAPI FreeLibraryAndExitThread(HINSTANCE hLibModule, DWORD dwExitCode)
{
FreeLibrary(hLibModule);
ExitThread(dwExitCode);
}
/***********************************************************************
* PrivateLoadLibrary (KERNEL32)
*
* FIXME: rough guesswork, don't know what "Private" means
*/
HINSTANCE WINAPI PrivateLoadLibrary(LPCSTR libname)
{
return (HINSTANCE)LoadLibrary16(libname);
}
/***********************************************************************
* PrivateFreeLibrary (KERNEL32)
*
* FIXME: rough guesswork, don't know what "Private" means
*/
void WINAPI PrivateFreeLibrary(HINSTANCE handle)
{
FreeLibrary16((HINSTANCE16)handle);
}
/***********************************************************************
* WIN32_GetProcAddress16 (KERNEL32.36)
* Get procaddress in 16bit module from win32... (kernel32 undoc. ordinal func)
*/
FARPROC16 WINAPI WIN32_GetProcAddress16( HMODULE hModule, LPCSTR name )
{
WORD ordinal;
FARPROC16 ret;
if (!hModule) {
WARN(module,"hModule may not be 0!\n");
return (FARPROC16)0;
}
if (HIWORD(hModule))
{
WARN( module, "hModule is Win32 handle (%08x)\n", hModule );
return (FARPROC16)0;
}
hModule = GetExePtr( hModule );
if (HIWORD(name)) {
ordinal = NE_GetOrdinal( hModule, name );
TRACE(module, "%04x '%s'\n",
hModule, name );
} else {
ordinal = LOWORD(name);
TRACE(module, "%04x %04x\n",
hModule, ordinal );
}
if (!ordinal) return (FARPROC16)0;
ret = NE_GetEntryPoint( hModule, ordinal );
TRACE(module,"returning %08x\n",(UINT)ret);
return ret;
}
/***********************************************************************
* GetProcAddress16 (KERNEL.50)
*/
FARPROC16 WINAPI GetProcAddress16( HMODULE16 hModule, SEGPTR name )
{
WORD ordinal;
FARPROC16 ret;
if (!hModule) hModule = GetCurrentTask();
hModule = GetExePtr( hModule );
if (HIWORD(name) != 0)
{
ordinal = NE_GetOrdinal( hModule, (LPSTR)PTR_SEG_TO_LIN(name) );
TRACE(module, "%04x '%s'\n",
hModule, (LPSTR)PTR_SEG_TO_LIN(name) );
}
else
{
ordinal = LOWORD(name);
TRACE(module, "%04x %04x\n",
hModule, ordinal );
}
if (!ordinal) return (FARPROC16)0;
ret = NE_GetEntryPoint( hModule, ordinal );
TRACE(module, "returning %08x\n", (UINT)ret );
return ret;
}
/***********************************************************************
* GetProcAddress32 (KERNEL32.257)
*/
FARPROC WINAPI GetProcAddress( HMODULE hModule, LPCSTR function )
{
return MODULE_GetProcAddress( hModule, function, TRUE );
}
/***********************************************************************
* WIN16_GetProcAddress32 (KERNEL.453)
*/
FARPROC WINAPI GetProcAddress32_16( HMODULE hModule, LPCSTR function )
{
return MODULE_GetProcAddress( hModule, function, FALSE );
}
/***********************************************************************
* MODULE_GetProcAddress32 (internal)
*/
FARPROC MODULE_GetProcAddress(
HMODULE hModule, /* [in] current module handle */
LPCSTR function, /* [in] function to be looked up */
BOOL snoop )
{
WINE_MODREF *wm = MODULE32_LookupHMODULE( hModule );
FARPROC retproc;
if (HIWORD(function))
TRACE(win32,"(%08lx,%s)\n",(DWORD)hModule,function);
else
TRACE(win32,"(%08lx,%p)\n",(DWORD)hModule,function);
if (!wm) {
SetLastError(ERROR_INVALID_HANDLE);
return (FARPROC)0;
}
switch (wm->type)
{
case MODULE32_PE:
retproc = PE_FindExportedFunction( wm, function, snoop );
if (!retproc) SetLastError(ERROR_PROC_NOT_FOUND);
return retproc;
case MODULE32_ELF:
retproc = ELF_FindExportedFunction( wm, function);
if (!retproc) SetLastError(ERROR_PROC_NOT_FOUND);
return retproc;
default:
ERR(module,"wine_modref type %d not handled.\n",wm->type);
SetLastError(ERROR_INVALID_HANDLE);
return (FARPROC)0;
}
}
/***********************************************************************
* RtlImageNtHeaders (NTDLL)
*/
PIMAGE_NT_HEADERS WINAPI RtlImageNtHeader(HMODULE hModule)
{
/* basically:
* return hModule+(((IMAGE_DOS_HEADER*)hModule)->e_lfanew);
* but we could get HMODULE16 or the like (think builtin modules)
*/
WINE_MODREF *wm = MODULE32_LookupHMODULE( hModule );
if (!wm || (wm->type != MODULE32_PE)) return (PIMAGE_NT_HEADERS)0;
return PE_HEADER(wm->module);
}
/***************************************************************************
* HasGPHandler (KERNEL.338)
*/
#pragma pack(1)
typedef struct _GPHANDLERDEF
{
WORD selector;
WORD rangeStart;
WORD rangeEnd;
WORD handler;
} GPHANDLERDEF;
#pragma pack(4)
SEGPTR WINAPI HasGPHandler16( SEGPTR address )
{
HMODULE16 hModule;
int gpOrdinal;
SEGPTR gpPtr;
GPHANDLERDEF *gpHandler;
if ( (hModule = FarGetOwner16( SELECTOROF(address) )) != 0
&& (gpOrdinal = NE_GetOrdinal( hModule, "__GP" )) != 0
&& (gpPtr = (SEGPTR)NE_GetEntryPointEx( hModule, gpOrdinal, FALSE )) != 0
&& !IsBadReadPtr16( gpPtr, sizeof(GPHANDLERDEF) )
&& (gpHandler = PTR_SEG_TO_LIN( gpPtr )) != NULL )
{
while (gpHandler->selector)
{
if ( SELECTOROF(address) == gpHandler->selector
&& OFFSETOF(address) >= gpHandler->rangeStart
&& OFFSETOF(address) < gpHandler->rangeEnd )
return PTR_SEG_OFF_TO_SEGPTR( gpHandler->selector,
gpHandler->handler );
gpHandler++;
}
}
return 0;
}
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