reactos/posix/lib/psxdll/misc/safeobj.c

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/* $Id: safeobj.c,v 1.4 2002/10/29 04:45:33 rex Exp $
*/
/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS POSIX+ Subsystem
* FILE: subsys/psx/lib/psxdll/misc/safeobj.c
* PURPOSE: safe checking of user-provided objects
* PROGRAMMER: KJK::Hyperion <noog@libero.it>
* UPDATE HISTORY:
* 09/01/2002: Created
*/
#include <psx/safeobj.h>
#include <psx/debug.h>
int __safeobj_validate(void *obj, __magic_t refsignature)
{
if(obj == 0)
return (0);
else
{
/* cast the object to a magic number */
__magic_t mSignature = *((__magic_t *)obj);
ERRIF
(
mSignature != refsignature,
"invalid object at %X: signature is \"%c%c%c%c\", should be \"%c%c%c%c\"",
obj,
MAGIC_DECOMPOSE(refsignature),
MAGIC_DECOMPOSE(mSignature)
);
if(mSignature == refsignature)
/* signatures match: ok */
return (-1);
else
/* signatures mismatch: fail */
return (0);
}
}
/* EOF */