sm-ext-dhooks2/util.cpp
2016-08-31 11:44:35 -04:00

49 lines
1.2 KiB
C++

#include "util.h"
void * GetObjectAddr(HookParamType type, unsigned int flags, void **params, size_t offset)
{
#ifdef WIN32
if (type == HookParamType_Object)
return (void *)((intptr_t)params + offset);
#elif POSIX
if (type == HookParamType_Object && !(flags & PASSFLAG_ODTOR)) //Objects are passed by rrefrence if they contain destructors.
return (void *)((intptr_t)params + offset);
#endif
return *(void **)((intptr_t)params + offset);
}
size_t GetParamOffset(HookParamsStruct *paramStruct, unsigned int index)
{
size_t offset = 0;
for (unsigned int i = 0; i < index; i++)
{
#ifndef WIN32
if (paramStruct->dg->params.at(i).type == HookParamType_Object && (paramStruct->dg->params.at(i).flags & PASSFLAG_ODTOR)) //Passed by refrence
{
offset += sizeof(void *);
continue;
}
#endif
offset += paramStruct->dg->params.at(i).size;
}
return offset;
}
size_t GetParamTypeSize(HookParamType type)
{
return sizeof(void *);
}
size_t GetParamsSize(DHooksCallback *dg)//Get the full size, this is for creating the STACK.
{
size_t res = 0;
for (int i = dg->params.size() - 1; i >= 0; i--)
{
res += dg->params.at(i).size;
}
return res;
}