Sweden-Number/dlls/kernel32/kernel_main.c

213 lines
7.1 KiB
C
Raw Normal View History

/*
* Kernel initialization code
*
* Copyright 2000 Alexandre Julliard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <ctype.h>
#include <stdarg.h>
#include <string.h>
#include <signal.h>
#include "windef.h"
#include "winbase.h"
#include "winnls.h"
#include "wincon.h"
#include "winternl.h"
#include "kernel_private.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(process);
static STARTUPINFOA startup_infoA;
/***********************************************************************
* set_entry_point
*/
#ifdef __i386__
static void set_entry_point( HMODULE module, const char *name, DWORD rva )
{
IMAGE_EXPORT_DIRECTORY *exports;
DWORD exp_size;
if ((exports = RtlImageDirectoryEntryToData( module, TRUE,
IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
{
DWORD *functions = (DWORD *)((char *)module + exports->AddressOfFunctions);
const WORD *ordinals = (const WORD *)((const char *)module + exports->AddressOfNameOrdinals);
const DWORD *names = (const DWORD *)((const char *)module + exports->AddressOfNames);
int min = 0, max = exports->NumberOfNames - 1;
while (min <= max)
{
int res, pos = (min + max) / 2;
const char *ename = (const char *)module + names[pos];
if (!(res = strcmp( ename, name )))
{
WORD ordinal = ordinals[pos];
DWORD oldprot;
TRACE( "setting %s at %p to %08x\n", name, &functions[ordinal], rva );
VirtualProtect( functions + ordinal, sizeof(*functions), PAGE_READWRITE, &oldprot );
functions[ordinal] = rva;
VirtualProtect( functions + ordinal, sizeof(*functions), oldprot, NULL );
return;
}
if (res > 0) max = pos - 1;
else min = pos + 1;
}
}
}
#endif
/***********************************************************************
* GetStartupInfoA (KERNEL32.@)
*/
VOID WINAPI GetStartupInfoA( LPSTARTUPINFOA info )
{
*info = startup_infoA;
}
static void copy_startup_info(void)
{
RTL_USER_PROCESS_PARAMETERS* rupp;
ANSI_STRING ansi;
RtlAcquirePebLock();
rupp = NtCurrentTeb()->Peb->ProcessParameters;
startup_infoA.cb = sizeof(startup_infoA);
startup_infoA.lpReserved = NULL;
startup_infoA.lpDesktop = !RtlUnicodeStringToAnsiString( &ansi, &rupp->Desktop, TRUE ) ? ansi.Buffer : NULL;
startup_infoA.lpTitle = !RtlUnicodeStringToAnsiString( &ansi, &rupp->WindowTitle, TRUE ) ? ansi.Buffer : NULL;
startup_infoA.dwX = rupp->dwX;
startup_infoA.dwY = rupp->dwY;
startup_infoA.dwXSize = rupp->dwXSize;
startup_infoA.dwYSize = rupp->dwYSize;
startup_infoA.dwXCountChars = rupp->dwXCountChars;
startup_infoA.dwYCountChars = rupp->dwYCountChars;
startup_infoA.dwFillAttribute = rupp->dwFillAttribute;
startup_infoA.dwFlags = rupp->dwFlags;
startup_infoA.wShowWindow = rupp->wShowWindow;
startup_infoA.cbReserved2 = rupp->RuntimeInfo.MaximumLength;
startup_infoA.lpReserved2 = rupp->RuntimeInfo.MaximumLength ? (void*)rupp->RuntimeInfo.Buffer : NULL;
startup_infoA.hStdInput = rupp->hStdInput ? rupp->hStdInput : INVALID_HANDLE_VALUE;
startup_infoA.hStdOutput = rupp->hStdOutput ? rupp->hStdOutput : INVALID_HANDLE_VALUE;
startup_infoA.hStdError = rupp->hStdError ? rupp->hStdError : INVALID_HANDLE_VALUE;
RtlReleasePebLock();
}
/***********************************************************************
* KERNEL process initialisation routine
*/
static BOOL process_attach( HMODULE module )
{
RTL_USER_PROCESS_PARAMETERS *params = NtCurrentTeb()->Peb->ProcessParameters;
kernel32_handle = module;
RtlSetUnhandledExceptionFilter( UnhandledExceptionFilter );
NtQuerySystemInformation( SystemBasicInformation, &system_info, sizeof(system_info), NULL );
CONSOLE_Init(params);
copy_startup_info();
#ifdef __i386__
if (!(GetVersion() & 0x80000000))
{
/* Securom checks for this one when version is NT */
set_entry_point( module, "FT_Thunk", 0 );
}
else
{
LDR_DATA_TABLE_ENTRY *ldr;
if (LdrFindEntryForAddress( GetModuleHandleW( 0 ), &ldr ) || !(ldr->Flags & LDR_WINE_INTERNAL))
LoadLibraryA( "krnl386.exe16" );
}
#endif
return TRUE;
}
/***********************************************************************
* KERNEL initialisation routine
*/
BOOL WINAPI DllMain( HINSTANCE hinst, DWORD reason, LPVOID reserved )
{
switch(reason)
{
case DLL_PROCESS_ATTACH:
DisableThreadLibraryCalls( hinst );
return process_attach( hinst );
case DLL_PROCESS_DETACH:
WritePrivateProfileSectionW( NULL, NULL, NULL );
break;
}
return TRUE;
}
/***********************************************************************
* MulDiv (KERNEL32.@)
* RETURNS
* Result of multiplication and division
* -1: Overflow occurred or Divisor was 0
*/
INT WINAPI MulDiv( INT nMultiplicand, INT nMultiplier, INT nDivisor)
{
LONGLONG ret;
if (!nDivisor) return -1;
/* We want to deal with a positive divisor to simplify the logic. */
if (nDivisor < 0)
{
nMultiplicand = - nMultiplicand;
nDivisor = -nDivisor;
}
/* If the result is positive, we "add" to round. else, we subtract to round. */
if ( ( (nMultiplicand < 0) && (nMultiplier < 0) ) ||
( (nMultiplicand >= 0) && (nMultiplier >= 0) ) )
ret = (((LONGLONG)nMultiplicand * nMultiplier) + (nDivisor/2)) / nDivisor;
else
ret = (((LONGLONG)nMultiplicand * nMultiplier) - (nDivisor/2)) / nDivisor;
if ((ret > 2147483647) || (ret < -2147483647)) return -1;
return ret;
}
/******************************************************************************
* GetSystemRegistryQuota (KERNEL32.@)
*/
BOOL WINAPI GetSystemRegistryQuota(PDWORD pdwQuotaAllowed, PDWORD pdwQuotaUsed)
{
FIXME("(%p, %p) faking reported quota values\n", pdwQuotaAllowed, pdwQuotaUsed);
if (pdwQuotaAllowed)
*pdwQuotaAllowed = 2 * 1000 * 1000 * 1000; /* 2 GB */
if (pdwQuotaUsed)
*pdwQuotaUsed = 100 * 1000 * 1000; /* 100 MB */
return TRUE;
}