Source code of Windows XP (NT5)
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///////////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 1998, Microsoft Corp. All rights reserved.
//
// FILE
//
// snmpoid.h
//
// SYNOPSIS
//
// Declares the class SnmpOid.
//
// MODIFICATION HISTORY
//
// 09/10/1998 Original version.
//
///////////////////////////////////////////////////////////////////////////////
#ifndef _SNMPOID_H_
#define _SNMPOID_H_
#if _MSC_VER >= 1000
#pragma once
#endif
#include <snmp.h>
///////////////////////////////////////////////////////////////////////////////
//
// CLASS
//
// SnmpOid
//
// DESCRIPTION
//
// Wrapper around an AsnObjectIdentifier struct.
//
///////////////////////////////////////////////////////////////////////////////
class SnmpOid
{
public:
// Constructor.
SnmpOid(AsnObjectIdentifier& a) throw ()
: oid(a)
{ }
// Assignment operator.
SnmpOid& operator=(const AsnObjectIdentifier& a);
// Returns the number of ID's forming the OID.
ULONG length() const throw ()
{ return oid.idLength; }
// Access an individual ID. Count is from the back. Does not check for
// underflow.
const UINT id(UINT pos) const throw ()
{ return oid.ids[oid.idLength - 1 - pos]; }
UINT& id(UINT pos) throw ()
{ return oid.ids[oid.idLength - 1 - pos]; }
// Returns true if this is a child of 'parent'.
bool isChildOf(const AsnObjectIdentifier& parent) const throw ();
// Changes the length of the OID.
void resize(UINT newLength);
// Cast operators allows this to be used with C API's.
operator AsnObjectIdentifier*() const throw ()
{ return const_cast<AsnObjectIdentifier*>(&oid); }
operator AsnObjectIdentifier&() const throw ()
{ return const_cast<AsnObjectIdentifier&>(oid); }
// Comparison operators.
bool SnmpOid::operator<(const AsnObjectIdentifier& a) const throw ()
{ return SnmpUtilOidCmp(*this, const_cast<AsnObjectIdentifier*>(&a)) < 0; }
bool SnmpOid::operator<=(const AsnObjectIdentifier& a) const throw ()
{ return SnmpUtilOidCmp(*this, const_cast<AsnObjectIdentifier*>(&a)) <= 0; }
bool SnmpOid::operator==(const AsnObjectIdentifier& a) const throw ()
{ return SnmpUtilOidCmp(*this, const_cast<AsnObjectIdentifier*>(&a)) == 0; }
bool SnmpOid::operator>=(const AsnObjectIdentifier& a) const throw ()
{ return SnmpUtilOidCmp(*this, const_cast<AsnObjectIdentifier*>(&a)) >= 0; }
bool SnmpOid::operator>(const AsnObjectIdentifier& a) const throw ()
{ return SnmpUtilOidCmp(*this, const_cast<AsnObjectIdentifier*>(&a)) > 0; }
protected:
AsnObjectIdentifier& oid;
private:
// Not implemented.
SnmpOid(const SnmpOid&);
};
#endif // _SNMPOID_H_