MibAccess.h

// FILE  : MibAccess.h
//
//

#ifndef _SNMP_ACCESS_H_
#define _SNMP_ACCESS_H_

#include <snmp.h>

#define SNMP_FUNC_TYPE                          WINAPI

// Defenitoin of pointers to the four functions in the Mib Dll
//
typedef BOOL (WINAPI *pSnmpExtensionInit)(
                                          IN  DWORD               dwTimeZeroReference,
                                          OUT HANDLE              *hPollForTrapEvent,
                                          OUT AsnObjectIdentifier *supportedView);

typedef BOOL (WINAPI *pSnmpExtensionTrap)(
                                          OUT AsnObjectIdentifier *enterprise,
                                          OUT AsnInteger          *genericTrap,
                                          OUT AsnInteger          *specificTrap,
                                          OUT AsnTimeticks        *timeStamp,
                                          OUT RFC1157VarBindList  *variableBindings);

typedef BOOL (WINAPI *pSnmpExtensionQuery)(
                                           IN BYTE                   requestType,
                                           IN OUT RFC1157VarBindList *variableBindings,
                                           OUT AsnInteger            *errorStatus,
                                           OUT AsnInteger            *errorIndex);

typedef BOOL (WINAPI *pSnmpExtensionInitEx)(OUT AsnObjectIdentifier *supportedView);

typedef VOID (SNMP_FUNC_TYPE *pSnmpUtilVarBindFree)
                    (SnmpVarBind * pVb);
typedef SNMPAPI (SNMP_FUNC_TYPE *pSnmpUtilOidNCmp)
                    (AsnObjectIdentifier * pOid1,
                    AsnObjectIdentifier * pOid2,
                    UINT nSubIds);
typedef SNMPAPI (SNMP_FUNC_TYPE *pSnmpUtilOidCpy)
                    (AsnObjectIdentifier * pOidDst,
                    AsnObjectIdentifier * pOidSrc);

class MibExtLoad
{
public:
    MibExtLoad(LPSTR MibDllName, LPSTR SnmpDllName);
    ~MibExtLoad();
    BOOL Init(DWORD dwTimeZeroReference,HANDLE *hPollForTrapEvent,AsnObjectIdentifier *supportedView);
    BOOL InitEx(AsnObjectIdentifier *supportedView);
    BOOL Query(BYTE requestType,OUT RFC1157VarBindList *variableBindings,
            AsnInteger *errorStatus,AsnInteger *errorIndex);

    BOOL Trap(AsnObjectIdentifier *enterprise, AsnInteger *genericTrap, 
        AsnInteger *specificTrap, AsnTimeticks *timeStamp, 
        RFC1157VarBindList  *variableBindings);

private:    
    HINSTANCE               m_hInst;
    pSnmpExtensionInit      m_Init;
    pSnmpExtensionInitEx    m_InitEx;
    pSnmpExtensionQuery     m_Query;
    pSnmpExtensionTrap      m_Trap;

protected:
    HINSTANCE               m_hSnmp;
    pSnmpUtilVarBindFree    m_SnmpUtilVarBindFree;
    pSnmpUtilOidNCmp        m_SnmpUtilOidNCmp;
    pSnmpUtilOidCpy         m_SnmpUtilOidCpy;
};


class MibII : public MibExtLoad
{
public:
    MibII();
    ~MibII();
    BOOL Init();
    BOOL GetIPAddress(UINT IpArray[],UINT &IpArraySize);
    BOOL GetIPMask(UINT IpArray[],UINT &IpArraySize);
};


#endif

---