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Fix #138 Pointer truncation in AI Script VM

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This commit is contained in:
kaetemi 2014-02-21 03:17:54 +01:00
parent 91d453dd63
commit 1764cfd708
1 changed files with 26 additions and 15 deletions
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41
code/ryzom/server/src/ai_service/script_vm.h
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@ -138,7 +138,12 @@ public:
float& getFloat(); float& getFloat();
float const& getFloat() const; float const& getFloat() const;
int _val; union
{
int _vali;
uintptr_t _valp;
};
TStackTypes _type; TStackTypes _type;
}; };
@ -346,7 +351,7 @@ inline
CScriptStack::CStackEntry& CScriptStack::CStackEntry::operator=(float const& f) CScriptStack::CStackEntry& CScriptStack::CStackEntry::operator=(float const& f)
{ {
clean(); clean();
_val = *((int*)&f); _vali = *((int*)&f);
_type = EFloat; _type = EFloat;
return *this; return *this;
} }
@ -354,7 +359,7 @@ inline
CScriptStack::CStackEntry& CScriptStack::CStackEntry::operator=(int const& i) CScriptStack::CStackEntry& CScriptStack::CStackEntry::operator=(int const& i)
{ {
clean(); clean();
_val = i; _vali = i;
_type = EOther; _type = EOther;
return *this; return *this;
} }
@ -363,7 +368,7 @@ CScriptStack::CStackEntry& CScriptStack::CStackEntry::operator=(std::string cons
{ {
clean(); clean();
std::string* const strPt = new std::string(str); std::string* const strPt = new std::string(str);
_val = *((int*)&strPt); _valp = *((int*)&strPt);
_type = EString; _type = EString;
return *this; return *this;
} }
@ -371,7 +376,7 @@ inline
CScriptStack::CStackEntry& CScriptStack::CStackEntry::operator=(IScriptContext* sc) CScriptStack::CStackEntry& CScriptStack::CStackEntry::operator=(IScriptContext* sc)
{ {
clean(); clean();
_val = *((int*)&sc); _valp = *((int*)&sc);
_type = EContext; _type = EContext;
return *this; return *this;
} }
@ -386,9 +391,11 @@ bool CScriptStack::CStackEntry::operator==(CStackEntry const& other) const
return getString()==other.getString(); return getString()==other.getString();
case EFloat: case EFloat:
return getFloat()==other.getFloat(); return getFloat()==other.getFloat();
case EContext:
return _valp==other._valp;
case EOther: case EOther:
default: default:
return _val==other._val; return _vali==other._vali;
} }
} }
@ -420,9 +427,11 @@ bool CScriptStack::CStackEntry::operator<(CStackEntry const& other) const
return getString()<other.getString(); return getString()<other.getString();
case EFloat: case EFloat:
return getFloat()<other.getFloat(); return getFloat()<other.getFloat();
case EContext:
return _valp<other._valp;
case EOther: case EOther:
default: default:
return _val<other._val; return _vali<other._vali;
} }
} }
@ -436,9 +445,11 @@ bool CScriptStack::CStackEntry::operator>(CStackEntry const& other) const
return getString()>other.getString(); return getString()>other.getString();
case EFloat: case EFloat:
return getFloat()>other.getFloat(); return getFloat()>other.getFloat();
case EContext:
return _valp>other._valp;
case EOther: case EOther:
default: default:
return _val>other._val; return _vali>other._vali;
} }
} }
@ -473,43 +484,43 @@ inline
std::string& CScriptStack::CStackEntry::getString() std::string& CScriptStack::CStackEntry::getString()
{ {
nlassert(_type==EString); nlassert(_type==EString);
return *(*((std::string**)&_val)); return *(*((std::string**)&_valp));
} }
inline inline
std::string const& CScriptStack::CStackEntry::getString() const std::string const& CScriptStack::CStackEntry::getString() const
{ {
nlassert(_type==EString); nlassert(_type==EString);
return *(*((std::string**)&_val)); return *(*((std::string**)&_valp));
} }
inline inline
IScriptContext* CScriptStack::CStackEntry::getIScriptContext() IScriptContext* CScriptStack::CStackEntry::getIScriptContext()
{ {
nlassert(_type==EContext); nlassert(_type==EContext);
return *((IScriptContext**)&_val); return *((IScriptContext**)&_valp);
} }
inline inline
int& CScriptStack::CStackEntry::getInt() int& CScriptStack::CStackEntry::getInt()
{ {
nlassert(_type==EOther); nlassert(_type==EOther);
return _val; return _vali;
} }
inline inline
int const& CScriptStack::CStackEntry::getInt() const int const& CScriptStack::CStackEntry::getInt() const
{ {
nlassert(_type==EOther); nlassert(_type==EOther);
return _val; return _vali;
} }
inline inline
float& CScriptStack::CStackEntry::getFloat() float& CScriptStack::CStackEntry::getFloat()
{ {
nlassert(_type==EFloat); nlassert(_type==EFloat);
return *((float*)&_val); return *((float*)&_vali);
} }
inline inline
float const& CScriptStack::CStackEntry::getFloat() const float const& CScriptStack::CStackEntry::getFloat() const
{ {
nlassert(_type==EFloat); nlassert(_type==EFloat);
return *((float const*)&_val); return *((float const*)&_vali);
} }
inline inline