/*++
Copyright (c) 1992-1997  Microsoft Corporation

Module Name:
    any.c

Abstract:
    Contains routines to manipulate AsnAny structures.

        SnmpUtilAsnAnyCpy
        SnmpUtilAsnAnyFree

Environment:
    User Mode - Win32
--*/

// Include files                                                             //
#include <snmp.h>
#include <snmputil.h>


// Public Procedures                                                         //

SNMPAPI SNMP_FUNC_TYPE SnmpUtilAsnAnyCpy(AsnAny * pAnyDst, AsnAny * pAnySrc)
/*++
Routine Description:
    Copy a variable value.
Arguments:
    pAnyDst - pointer to structure to receive value.
    pAnySrc - pointer to value to copy.
Return Values:
    Returns SNMPAPI_NOERROR if successful.
--*/
{
    SNMPAPI nResult = SNMPAPI_NOERROR;

    // determine asn type
    switch (pAnySrc->asnType) {
    case ASN_OBJECTIDENTIFIER:
        // copy object identifier
        nResult = SnmpUtilOidCpy(&pAnyDst->asnValue.object, &pAnySrc->asnValue.object);
        break;
    case ASN_OPAQUE:
    case ASN_IPADDRESS:
    case ASN_OCTETSTRING:
    case ASN_BITS:
        // copy octet string
        nResult = SnmpUtilOctetsCpy(&pAnyDst->asnValue.string, &pAnySrc->asnValue.string);
        break;
    default:
        // simply transfer entire structure
        pAnyDst->asnValue = pAnySrc->asnValue;
        break;
    }

    // transfer type to destination
    pAnyDst->asnType = pAnySrc->asnType;

    return nResult;
}


VOID SNMP_FUNC_TYPE SnmpUtilAsnAnyFree(AsnAny * pAny)
/*++
Routine Description:
    Release memory associated with variable value.
Arguments:
    pAny - pointer to variable value to free.
--*/
{
    // determine asn type
    switch (pAny->asnType) {
    case ASN_OBJECTIDENTIFIER:
        // free object identifier
        SnmpUtilOidFree(&pAny->asnValue.object);
        break;
    case ASN_OPAQUE:
    case ASN_IPADDRESS:
    case ASN_OCTETSTRING:
    case ASN_BITS:
        // free octet string
        if (pAny->asnValue.string.dynamic)
        {
            SnmpUtilOctetsFree(&pAny->asnValue.string);
            pAny->asnValue.string.dynamic = FALSE;
            pAny->asnValue.string.stream = NULL;
        }
        break;
    default:
        break;
    }

    // re-initialize
    pAny->asnType = ASN_NULL;
}