SNMP程序 release版本的问题

Question

我的程序很奇怪，在VC编译下，debug版本没有问题。但是release版本总是在第二次接受数据的时候，发生崩溃，不知道为什么？CSnmp::CSnmp()
{
nMajorVersion=new unsigned long;
nMinorVersion=new unsigned long;
nLevel=new unsigned long;
nTranslateMode=new unsigned long;
nRetransmitMode=new unsigned long;
if(SnmpStartup(nMajorVersion,nMinorVersion,nLevel,nTranslateMode,
nRetransmitMode)!=SNMPAPI_SUCCESS)
{
AfxMessageBox("initilization failure");
}
if(SnmpSetTranslateMode(SNMPAPI_UNTRANSLATED_V2) != SNMPAPI_SUCCESS)
AfxMessageBox("SetTranslateMode failure");
if(SnmpSetRetransmitMode(SNMPAPI_ON) != SNMPAPI_SUCCESS)
AfxMessageBox("SetRetransmitMode failure");
sessionID=FALSE;
}CSnmp::~CSnmp()
{
if(nRetransmitMode!=NULL)
delete nRetransmitMode;
if(nTranslateMode!=NULL)
delete nTranslateMode;
if(nLevel!=NULL)
delete nLevel;
if(nMinorVersion!=NULL)
delete nMinorVersion;
if(nMajorVersion!=NULL)
delete nMajorVersion;
if(session!=NULL)
SnmpClose(session);
SnmpCleanup();
}CSnmp::CreateSession(HWND hWnd,UINT wMsg)
{
if((session=SnmpCreateSession(hWnd,wMsg,NULL,NULL))==SNMPAPI_FAILURE)
AfxMessageBox("CreateSession failure");
}CSnmp::CreateVbl(LPCSTR name,smiLPVALUE pvalue)
{
smiOID pOid;
if(SnmpStrToOid(name,&pOid)==SNMPAPI_FAILURE)
{
AfxMessageBox("CreateVbl failure");
}
m_hvbl=SnmpCreateVbl(session,&pOid,pvalue);
if(m_hvbl==SNMPAPI_FAILURE)
{
AfxMessageBox("CreateVbl failure");
}
if(SnmpFreeDescriptor(SNMP_SYNTAX_OID,(smiLPOPAQUE)&pOid) != SNMPAPI_SUCCESS)   
AfxMessageBox("freedescriptor   failure"); 
}CSnmp::SetVbl(LPCSTR name)
{
smiOID pOid;
if(SnmpStrToOid(name,&pOid)==SNMPAPI_FAILURE)
{AfxMessageBox("SetVbl failure--oid");
//dwErr=SnmpGetLastError(session);
}
if(SnmpSetVb(m_hvbl,0,&pOid,NULL)==SNMPAPI_FAILURE)
{AfxMessageBox("SetVbl failure");
//dwErr=SnmpGetLastError(session);
}
if(SnmpFreeDescriptor(SNMP_SYNTAX_OID,(smiLPOPAQUE)&pOid) != SNMPAPI_SUCCESS)   
AfxMessageBox("freedescriptor   failure"); 
}
CSnmp::CreatePdu(smiINT PDU_type,smiINT32 request_id,
 smiINT error_status,smiINT error_index)
{
m_hpdu=SnmpCreatePdu(session,PDU_type,request_id,error_status,error_index,m_hvbl);
if(m_hpdu==SNMPAPI_FAILURE)
{
AfxMessageBox("CreatePdu failure");
}
else if (error_status > 0)
{
       AfxMessageBox("Error: error_status=%d, error_index=%d\n",error_status, error_index);
    }
}CSnmp::Send(LPCSTR address,const char * community)
{
// oldMemState.Checkpoint();
HSNMP_ENTITY hAgent;
if((hAgent=SnmpStrToEntity(session,address))==SNMPAPI_FAILURE)
AfxMessageBox("SendMsg failure--entity");
smiOCTETS contextName;
contextName.ptr=(unsigned char *)community;
contextName.len=lstrlen(community);
HSNMP_CONTEXT hView;
if((hView=SnmpStrToContext(session,&contextName))==SNMPAPI_FAILURE)
AfxMessageBox("SendMsg failure--context");
if(SnmpSendMsg(session,NULL,hAgent,hView,m_hpdu)==SNMPAPI_FAILURE)
{
AfxMessageBox("SendMsg failure");
//dwErr=SnmpGetLastError(session);
CString str;
str.Format("%d",SnmpGetLastError(session));
AfxMessageBox(str);
}
SnmpFreeDescriptor(SNMP_SYNTAX_OCTETS,(smiLPOPAQUE)&contextName);
if(m_hpdu!=NULL)
SnmpFreePdu(m_hpdu);
if(m_hvbl!=NULL)
SnmpFreeVbl(m_hvbl);
if(hAgent!=NULL)
SnmpFreeEntity(hAgent);
if(hView!=NULL)
SnmpFreeContext(hView);
}
CSnmp::Receive(LPTSTR *name,smiLPVALUE *value)
{
HSNMP_ENTITY srcEntity; 
HSNMP_ENTITY dstEntity; 
HSNMP_CONTEXT context;
HSNMP_PDU pPdu;
smiLPINT PDU_type=new smiINT; 
smiLPINT32 request_id=new smiINT32;
smiLPINT error_status=new smiINT;
smiLPINT error_index=new smiINT;
HSNMP_VBL varbindlist;
smiLPOID pOid = new smiOID;
if(SnmpRecvMsg(session,&srcEntity,&dstEntity,&context,&pPdu)!=SNMPAPI_SUCCESS)
AfxMessageBox("receive failure--recv");
if(SnmpGetPduData(pPdu,PDU_type,request_id,error_status,error_index,&varbindlist)!=SNMPAPI_SUCCESS)
{
AfxMessageBox("receive failure--getpdu");
CString str;
str.Format("%d",SnmpGetLastError(NULL));
AfxMessageBox(str);
}
if((nCount=SnmpCountVbl(varbindlist))==SNMPAPI_FAILURE)
AfxMessageBox("Count Vbl Error");
for(int i=1;i<=nCount;i++)
{
if(SnmpGetVb(varbindlist,i,pOid,value[i])!=SNMPAPI_SUCCESS)
{
AfxMessageBox("receive failure--getvb");
CString str;
str.Format("%d",SnmpGetLastError(NULL));
AfxMessageBox(str);
}
if(SnmpOidToStr(pOid,100,name[i])==SNMPAPI_FAILURE)
{
AfxMessageBox("Get Vb Error");
CString str;
str.Format("%d",SnmpGetLastError(NULL));
AfxMessageBox(str);}
}
SnmpFreeEntity(srcEntity);
SnmpFreeEntity(dstEntity);
SnmpFreeContext(context);
SnmpFreePdu(pPdu);
SnmpFreeVbl(varbindlist);
SnmpFreeDescriptor(SNMP_SYNTAX_OID,(smiLPOPAQUE)&pOid);
delete PDU_type; 
delete request_id;
delete error_status;
delete error_index;
}

Answer 1

发送代码采取的是定时器，接受部分采取了消息响应，希望大侠指导
void CSnmpTestDlg::OnTimer(UINT nIDEvent) 
{
// TODO: Add your message handler code here and/or call default
if(pSnmp.sessionID==FALSE)
{
pSnmp.CreateSession(this->m_hWnd,wMsg);             //创建SNMP对话
m_slist.AddString("createsession is ok");
pSnmp.sessionID=TRUE;
}
pSnmp.CreateVbl(m_initOid[1],NULL);                  //创建SNMP VBL
m_slist.AddString("createvbl is ok");
for(int i=2;i<=6;i++)
{
pSnmp.SetVbl(m_initOid[i]); //绑定SNMP   VBL
} m_slist.AddString("setvbl is ok");
pSnmp.CreatePdu(SNMP_PDU_GET,0,NULL,NULL);               //创建GET  PDU  
m_slist.AddString("createpdu is ok");
pSnmp.Send("127.0.0.1","public"); //向代理地址发送消息
m_slist.AddString("send is ok");

SnmpFreeVbl(pSnmp.m_hvbl);
SnmpFreePdu(pSnmp.m_hpdu);

CDialog::OnTimer(nIDEvent);
}void CSnmpTestDlg::OnRecv()                                  //接受SNMP消息
{
int nIpin;
CString strIp;
CString strTemp;

pSnmp.Receive(m_sOid,m_value); //接受SNMP消息     
m_slist.AddString("receive is ok");
for(int i=1;i<=pSnmp.nCount;i++)
{
switch(m_value[i]->syntax) //分析消息类型 ，union
{
case SNMP_SYNTAX_INT: 
smiINT sNumber;
sNumber=m_value[i]->value.sNumber;
nIpin=sNumber;
wsprintf(str[i],"%d",sNumber);
break;
case SNMP_SYNTAX_UINT32:
case SNMP_SYNTAX_CNTR32:
case SNMP_SYNTAX_GAUGE32: 
case SNMP_SYNTAX_TIMETICKS:                         //系统开始时间i=2 ;ip包入 i=5;ip包出 i=6    
smiUINT32 uNumber;
uNumber=m_value[i]->value.uNumber;
nIpin=uNumber;
wsprintf((LPSTR)str[i],"%d",uNumber);
break;
case SNMP_SYNTAX_CNTR64:
smiCNTR64 hNumber;
hNumber=m_value[i]->value.hNumber;
break;
case SNMP_SYNTAX_OCTETS: 
case SNMP_SYNTAX_OPAQUE: 
case SNMP_SYNTAX_NSAPADDR:                              //硬件信息i=1，系统名称i=4
str[i]=(char *)m_value[i]->value.string.ptr;         
break;
case SNMP_SYNTAX_IPADDR:                                 //IP地址
strIp.Format("%d",*m_value[i]->value.string.ptr);
strIp+=".";
strTemp.Format("%d",*(m_value[i]->value.string.ptr+1));
strIp+=strTemp;
strIp+=".";
strTemp.Format("%d",*(m_value[i]->value.string.ptr+2));
strIp+=strTemp;
strIp+=".";
strTemp.Format("%d",*(m_value[i]->value.string.ptr+3));
strIp+=strTemp;
strcpy((LPSTR)str[i],(LPCSTR)strIp);
break;
case SNMP_SYNTAX_OID:                                      //设备OID
smiOID oid;
oid=m_value[i]->value.oid;
SnmpOidToStr(&oid,30,str[i]);
break;
case SNMP_SYNTAX_NULL: 
case SNMP_SYNTAX_NOSUCHOBJECT:
case SNMP_SYNTAX_NOSUCHINSTANCE: 
case SNMP_SYNTAX_ENDOFMIBVIEW:                             //没有查询到
smiBYTE empty;
empty=m_value[i]->value.empty;
str[i]="No Value Returned";
break;
default:
break;
}
SnmpFreeDescriptor(m_value[i]->syntax,(smiOCTETS*)&(m_value[i]->value.oid));
if(strcmp(m_sOid[i],m_initOid[1])==0)
m_sDesr=CString(str[i]);                           //系统信息
else if (strcmp(m_sOid[i],m_initOid[3])==0)            //系统开始时间
m_sSysTime=CString(str[i]);
else if (strcmp(m_sOid[i],m_initOid[4])==0)            //系统名字
m_sSysName=str[i];
else if (strcmp(m_sOid[i],m_initOid[5])==0)            //IP入包的数量
{
m_sIpin=str[i];
}
else if(strcmp(m_sOid[i],m_initOid[6])==0)              //IP出包的数量
m_sIpout=str[i];
}
m_slist.AddString("display is ok");
UpdateData(FALSE);
}