rtcapi.c File Reference

#include <rtcapi.h>

Include dependency graph for rtcapi.c:

Go to the source code of this file.

Functions
int __cdecl	_RTC_DefaultErrorFuncW (int errType, const wchar_t *file, int line, const wchar_t *module, const wchar_t *format,...)
_RTC_error_fnW __cdecl	_CRT_RTC_INITW0 (void *_Res0, void **_Res1, int _Res2, int _Res3, int _Res4)
void __cdecl	_RTC_InitBase (void)
void __cdecl	_RTC_Shutdown (void)
void __cdecl	_RTC_Initialize (void)
void __cdecl	_RTC_Failure (void *retaddr, int errnum)
void __cdecl	_RTC_UninitUse (const char *_Varname)
void __fastcall	_RTC_CheckStackVars (void *_Esp, _RTC_framedesc *_Fd)
void __fastcall	_RTC_CheckStackVars2 (void *_Esp, _RTC_framedesc *_Fd, _RTC_ALLOCA_NODE *_AllocaList)
void __fastcall	_RTC_AllocaHelper (_RTC_ALLOCA_NODE *_PAllocaBase, size_t _CbSize, _RTC_ALLOCA_NODE **_PAllocaInfoList)

Variables
_RTC_error_fnW	_RTC_pErrorFuncW = _RTC_DefaultErrorFuncW

Function Documentation

_CRT_RTC_INITW0()

_RTC_error_fnW __cdecl _CRT_RTC_INITW0	(	void *	_Res0,
		void **	_Res1,
		int	_Res2,
		int	_Res3,
		int	_Res4
	)

Definition at line 57 of file rtcapi.c.

{
    return &_RTC_DefaultErrorFuncW;
}

_RTC_AllocaHelper()

void __fastcall _RTC_AllocaHelper	(	_RTC_ALLOCA_NODE *	_PAllocaBase,
		size_t	_CbSize,
		_RTC_ALLOCA_NODE **	_PAllocaInfoList
	)

Definition at line 192 of file rtcapi.c.

{
    unsigned long i;
 
    /* Check if we got any allocation */
    if ((_PAllocaBase != 0) &&
        (_CbSize != 0) &&
        (_PAllocaInfoList != 0))
    {
        /* Mark the whole range */
        char *guard = (char*)_PAllocaBase;
        for (i = 0; i < _CbSize; i++)
        {
            guard[i] = 0xCC;
        }
 
        /* Initialize the alloca base frame */
        _PAllocaBase->allocaSize = _CbSize;
 
        /* Insert this frame into the alloca list */
        _PAllocaBase->next = *_PAllocaInfoList;
        *_PAllocaInfoList = _PAllocaBase;
    }
}

_RTC_CheckStackVars()

void __fastcall _RTC_CheckStackVars	(	void *	_Esp,
		_RTC_framedesc *	_Fd
	)

Definition at line 129 of file rtcapi.c.

{
    int i, *guard1, *guard2;
 
    /* Loop all variables in the descriptor */
    for (i = 0; i < _Fd->varCount; i++)
    {
        /* Get the 2 guards below and above the variable */
        guard1 = (int*)((char*)_Esp + _Fd->variables[i].addr - sizeof(*guard1));
        guard2 = (int*)((char*)_Esp + _Fd->variables[i].addr +_Fd->variables[i].size);
 
        /* Check if they contain the guard bytes */
        if ((*guard1 != 0xCCCCCCCC) || (*guard2 != 0xCCCCCCCC))
        {
            _RTC_pErrorFuncW(_RTC_CORRUPT_STACK,
                             L"unknown file",
                             -1,
                             L"unknown module",
                             L"Stack corruption near '%s'\n",
                             _Fd->variables[i].name);
        }
    }
}

Referenced by _RTC_CheckStackVars2().

_RTC_CheckStackVars2()

void __fastcall _RTC_CheckStackVars2	(	void *	_Esp,
		_RTC_framedesc *	_Fd,
		_RTC_ALLOCA_NODE *	_AllocaList
	)

Definition at line 157 of file rtcapi.c.

{
    _RTC_ALLOCA_NODE *current;
    int *guard;
 
    /* Process normal variables */
    _RTC_CheckStackVars(_Esp, _Fd);
 
    /* Process the alloca list */
    for (current = _AllocaList; current != 0; current = current->next)
    {
        /* Get the upper guard */
        guard = (int*)((char*)current + current->allocaSize - sizeof(*guard));
 
        /* Check if all guard locations are still ok */
        if ((current->guard1 != 0xCCCCCCCC) ||
            (current->guard2[0] != 0xCCCCCCCC) ||
            (current->guard2[1] != 0xCCCCCCCC) ||
            (current->guard2[2] != 0xCCCCCCCC) ||
            (*guard != 0xCCCCCCCC))
        {
            _RTC_pErrorFuncW(_RTC_CORRUPTED_ALLOCA,
                             L"unknown file",
                             -1,
                             L"unknown module",
                             L"Stack corruption in alloca frame\n");
        }
    }
}

_RTC_DefaultErrorFuncW()

int __cdecl _RTC_DefaultErrorFuncW	(	int	errType,
		const wchar_t *	file,
		int	line,
		const wchar_t *	module,
		const wchar_t *	format,
			...
	)

Definition at line 37 of file rtcapi.c.

{
    /* Simple fallback function */
    __debugbreak();
    return 0;
}

Referenced by _CRT_RTC_INITW0(), and _RTC_SetErrorFuncW().

_RTC_Failure()

void __cdecl _RTC_Failure	(	void *	retaddr,
		int	errnum
	)

Definition at line 101 of file rtcapi.c.

{
    _RTC_pErrorFuncW(errnum,
                     L"unknown file",
                     -1,
                     L"unknown module",
                     L"Invalid stack pointer value caught at %p, error %d\n",
                     retaddr,
                     errnum);
}

_RTC_InitBase()

void __cdecl _RTC_InitBase

(

void

)

Definition at line 69 of file rtcapi.c.

{
    static char initialized = 0;
    _RTC_error_fnW errorFunc;
 
    if (!initialized)
    {
        errorFunc = _CRT_RTC_INITW(0, 0, 0, 1, 0);
        _RTC_SetErrorFuncW(errorFunc);
        initialized = 1;
    }
}

Referenced by _RTC_Initialize().

_RTC_Initialize()

void __cdecl _RTC_Initialize

(

void

)

Definition at line 91 of file rtcapi.c.

{
    /* Usually this function would walk an array of function pointers and call
       each of these, like done with global ctors, but since these are currently
       only _RTC_InitBase, we simply call that function once. */
    _RTC_InitBase();
}

Referenced by __main().

_RTC_Shutdown()

void __cdecl _RTC_Shutdown

(

void

)

Definition at line 84 of file rtcapi.c.

{
    __debugbreak();
}

_RTC_UninitUse()

void __cdecl _RTC_UninitUse

(

const char *

_Varname

)

Definition at line 116 of file rtcapi.c.

{
    _RTC_pErrorFuncW(_RTC_UNINIT_LOCAL_USE,
                     L"unknown file",
                     -1,
                     L"unknown module",
                     L"Use of uninitialized variable %S!\n",
                     _Varname);
}

Variable Documentation

_RTC_pErrorFuncW

_RTC_error_fnW _RTC_pErrorFuncW = _RTC_DefaultErrorFuncW

Definition at line 50 of file rtcapi.c.

Referenced by _RTC_CheckStackVars(), _RTC_CheckStackVars2(), _RTC_Failure(), _RTC_SetErrorFuncW(), and _RTC_UninitUse().