Service generates error when checked with HM

[Guest]

Alex, we have a couple of custom services that upon being checked by HM return an error into the Eventlog of the following sort:

Event Type: Error
Event Source: Service Control Manager
Event Category: None
Event ID: 7016
Date: 4/4/2003
Time: 11:43:31 AM
User: N/A
Computer: CHAIN3
Description:
The TPS: Chain Man service has reported an invalid current state 12febc.


My programmer wants to know what kind of API call is made to do something like that.

Below is the source for the test he did:


// QueryService.cpp : Defines the entry point for the console application.
//
#include "stdafx.h"
#include <windows.h>

int _tmain(int argc, _TCHAR* argv[])
{
printf("Starting Service Queryn");

SC_HANDLE hSCM = OpenSCManager(
"CHAIN2", //"dsc1009x4v921",
SERVICES_ACTIVE_DATABASE,
SC_MANAGER_CONNECT);

if(NULL == hSCM)
{
printf("Failed calling OpenSCManager %dn", GetLastError());
}

SC_HANDLE hService = OpenService(
hSCM, // SCM database
"GARBAGEMAN", // service name
SERVICE_ALL_ACCESS);

if(NULL == hService)
{
printf("Failed calling OpenService %dn", GetLastError());
}

SERVICE_STATUS status;
QueryServiceStatus(hService, &status);

printf(" Current State: %dn", status.dwCurrentState);
printf(" Exit Code: %dn", status.dwWin32ExitCode);
printf(" Service Specific Exit Code: %dn", status.dwServiceSpecificExitCode);
printf(" Check Point: %dn", status.dwCheckPoint);
printf(" Wait Hint: %dn", status.dwWaitHint);

printf("Service Query Completen");

return 0;
}

[KS-Soft]

HostMonitor sends SERVICE_CONTROL_INTERROGATE command to the service.
API functions used by HM:
- OpenSCManager
- OpenService
- ControlService(HandleServ, SERVICE_CONTROL_INTERROGATE, lpServiceStatus)

Regards
Alex