--- /dev/null
+/*
+ Win32 GIVEIO(DirectI/O Access) Service Controll Module
+*/
+
+#include "giveio.h"
+#include <windows.h>
+#include <stdio.h>
+
+/**-----------------------------------------------------**/
+
+/*
++--------------------+---------+----+----+----+----+--------------------+
+|Products |Version |PFID|MJRV|MNRV|BNUM| note
++--------------------+---------+----+----+----+----+--------------------+
+|Windows 95 |4.00.950 | 1 | 4 | 0 | 950|(Windows 95 + SP1) |
+|Windows 95 OSR 2 |4.00.950B| 1 | 4 | 0 |1111|(Windows 95 OSR 2.1)|
+|Windows 95 OSR 2.5 |4.00.950C| 1 | 4 | 0 |1212| |
+|Windows 98 |4.10.1998| 1 | 4 | 10 |1998| |
+|Windows 98 SE |4.10.2222| 1 | 4 | 10 |2222| |
+|Windows Me |4.90.3000| 1 | 4 | 90 |3000| |
+|Windows NT 4.0 |4.00.1381| 2 | 4 | 0 |1381| |
+|Windows 2000 |5.00.2195| 2 | 5 | 0 |2195| |
+|Windows XP |5.01.2600| 2 | 5 | 1 |2600| |
++--------------------+---------+----+----+----+----+--------------------+
+
+PFID = dwPlatformId
+MJRV = dwMajorVersion
+MNRV = dwMinorVersion
+BNUM = dwBuildNumber
+*/
+
+/* check the OS which GIVEIO should be necessary */
+static int is_winnt(void)
+{
+ OSVERSIONINFO osvi;
+
+ osvi.dwOSVersionInfoSize = sizeof(osvi);
+ if( !GetVersionEx(&osvi) )
+ return 0;
+
+ switch (osvi.dwPlatformId)
+ {
+ case VER_PLATFORM_WIN32_NT:
+ return 1;
+ case VER_PLATFORM_WIN32_WINDOWS:
+ return 0;
+ case VER_PLATFORM_WIN32s:
+ return 0;
+ }
+
+ /* unknown */
+ return 0;
+}
+
+/**-----------------------------------------------------**/
+
+/* connect to local service control manager */
+static SC_HANDLE hSCMan = NULL;
+static int OpenServiceControlManager(void)
+{
+ if(hSCMan==NULL)
+ {
+ /* connect to local service control manager */
+ if ((hSCMan = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS)) == NULL)
+ return GetLastError();
+ }
+ return 0;
+}
+
+static void ClseServiceControlManager(void)
+{
+ if(hSCMan==NULL)
+ CloseServiceHandle(hSCMan);
+ hSCMan = NULL;
+}
+
+/**-----------------------------------------------------**/
+/* #define MAX_PATH 256 */
+static DWORD DriverInstall(LPCTSTR lpFname,LPCTSTR lpDriver)
+{
+ BOOL dwStatus = 0;
+ SC_HANDLE hService = NULL;
+ char *address;
+ char fullpath[MAX_PATH];
+
+ /* connect to local service control manager */
+ if(OpenServiceControlManager())
+ return 1;
+
+ /* get full path of driver file in current directry */
+ GetFullPathName(lpFname,MAX_PATH,fullpath,&address);
+
+ /* add to service control manager's database */
+ if ((hService = CreateService(hSCMan, lpDriver,
+ lpDriver, SERVICE_ALL_ACCESS, SERVICE_KERNEL_DRIVER,
+ SERVICE_DEMAND_START, SERVICE_ERROR_NORMAL, fullpath,
+ NULL, NULL, NULL, NULL, NULL)) == NULL)
+ dwStatus = GetLastError();
+ else CloseServiceHandle(hService);
+
+ return dwStatus;
+}
+
+static DWORD DriverStart(LPCTSTR lpDriver)
+{
+ BOOL dwStatus = 0;
+ SC_HANDLE hService = NULL;
+
+ /* connect to local service control manager */
+ if(OpenServiceControlManager())
+ return 1;
+
+ // get a handle to the service
+ if ((hService = OpenService(hSCMan, lpDriver, SERVICE_ALL_ACCESS)) != NULL)
+ {
+ // start the driver
+ if (!StartService(hService, 0, NULL))
+ dwStatus = GetLastError();
+ } else dwStatus = GetLastError();
+
+ if (hService != NULL) CloseServiceHandle(hService);
+
+ return dwStatus;
+} // DriverStart
+
+/**-----------------------------------------------------**/
+static DWORD DriverStop(LPCTSTR lpDriver)
+{
+ BOOL dwStatus = 0;
+ SC_HANDLE hService = NULL;
+ SERVICE_STATUS serviceStatus;
+
+ /* connect to local service control manager */
+ if(OpenServiceControlManager())
+ return 1;
+
+
+ // get a handle to the service
+ if ((hService = OpenService(hSCMan, lpDriver,
+ SERVICE_ALL_ACCESS)) != NULL)
+ {
+ // stop the driver
+ if (!ControlService(hService, SERVICE_CONTROL_STOP,
+ &serviceStatus))
+ dwStatus = GetLastError();
+ } else dwStatus = GetLastError();
+
+ if (hService != NULL) CloseServiceHandle(hService);
+ return dwStatus;
+} // DriverStop
+
+/**-----------------------------------------------------**/
+static DWORD DriverRemove(LPCTSTR lpDriver)
+{
+ BOOL dwStatus = 0;
+ SC_HANDLE hService = NULL;
+
+ /* connect to local service control manager */
+ if(OpenServiceControlManager())
+ return 1;
+
+ // get a handle to the service
+ if ((hService = OpenService(hSCMan, lpDriver,
+ SERVICE_ALL_ACCESS)) != NULL)
+ {
+ // remove the driver
+ if (!DeleteService(hService))
+ dwStatus = GetLastError();
+ } else dwStatus = GetLastError();
+
+ if (hService != NULL) CloseServiceHandle(hService);
+ return dwStatus;
+} // DriverRemove
+
+/*****************************************************************************/
+
+const char giveio_dname[] = "\\\\.\\giveio"; /* device name */
+const char giveio_fname[] = "giveio.sys"; /* driver-file name */
+const char giveio_sname[] = "giveio"; /* service name */
+
+/*
+open & close "giveio" device for Direct I/O Access
+
+1st try : open giveio
+2nd try : start service & open
+3rd try : install current "giveio.sys" file & start & open
+*/
+
+int giveio_start(void)
+{
+ HANDLE h;
+ int res;
+
+ /* escape when Win95/98/Me */
+ if(!is_winnt())
+ return GIVEIO_WIN95;
+
+
+ /* WinNT , try GIVEIO */
+ res = GIVEIO_OPEN;
+ while(1)
+ {
+ if(res>=GIVEIO_INSTALL)
+ {
+/* printf("Install\n"); */
+ /* Install "GIVEIO.SYS" file in currect directry */
+ if( DriverInstall(giveio_fname,giveio_sname) )
+ {
+ /* if install error , no retry */
+ break;
+ }
+ }
+ if(res>=GIVEIO_START)
+ {
+/* printf("Start\n"); */
+ /* Start GIVEIO Service */
+ if( DriverStart(giveio_sname) )
+ {
+ /* error , retry with install */
+ res ++;
+ continue;
+ }
+ }
+/* printf("Open\n"); */
+ /* open driver */
+ h = CreateFile(giveio_dname, GENERIC_READ, 0, NULL,
+ OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
+ if(h != INVALID_HANDLE_VALUE)
+ {
+ /* OK */
+ CloseHandle(h);
+ return res;
+ }
+ /* error , retry with Start,Install */
+ res++;
+ }
+
+ /* error */
+ return GIVEIO_ERROR;
+}
+
+int giveio_stop(int param)
+{
+ /* escape when Win95/98/Me */
+ if(!is_winnt())
+ return 0;
+
+ if(param>=GIVEIO_STOP)
+ {
+/* printf("Stop\n"); */
+ if( DriverStop(giveio_sname) )
+ return param;
+ if(param>=GIVEIO_REMOVE)
+ {
+/* printf("Remove\n"); */
+ if(DriverRemove(giveio_sname) )
+ return param;
+ }
+ }
+
+ ClseServiceControlManager();
+
+ /* Okay */
+ return 0;
+}
+
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