Leaked source code of windows server 2003
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/*++
Copyright (c) 1991-1993 Microsoft Corporation
Module Name:
ApiTime.c
Abstract:
This module contains individual API handler for the NetRemoteTOD API.
SUPPORTED : NetRemoteTOD.
Author:
Shanku Niyogi (w-shanku) 04-Apr-1991
Revision History:
10-Jun-1993 JohnRo
RAID 13081: NetRemoteTOD should return timezone info.
--*/
#include "XactSrvP.h"
#include <timelib.h> // NetpLocalTimeZoneOffset().
//
// Forward declarations
//
NET_API_STATUS
GetLocalTOD(
OUT LPTIME_OF_DAY_INFO TimeOfDayInfo
);
//
// Declaration of descriptor strings.
//
STATIC const LPDESC Desc16_time_of_day_info = REM16_time_of_day_info;
STATIC const LPDESC Desc32_time_of_day_info = REM32_time_of_day_info;
NTSTATUS
XsNetRemoteTOD (
API_HANDLER_PARAMETERS
)
/*++
Routine Description:
This routine handles a call to NetRemoteTOD.
Arguments:
API_HANDLER_PARAMETERS - information about the API call. See
XsTypes.h for details.
Return Value:
NTSTATUS - STATUS_SUCCESS or reason for failure.
--*/
{
NET_API_STATUS status;
PXS_NET_REMOTE_TOD parameters = Parameters;
TIME_OF_DAY_INFO timeOfDay;
DWORD bytesRequired = 0; // Conversion variables
LPBYTE stringLocation = NULL;
API_HANDLER_PARAMETERS_REFERENCE; // Avoid warnings
IF_DEBUG(TIME) {
NetpKdPrint(( "XsNetRemoteTOD: header at %lx, params at %lx\n",
Header, parameters ));
}
//
// Make the local call.
//
status = GetLocalTOD(
&timeOfDay
);
try {
if ( !XsApiSuccess( status )) {
IF_DEBUG(API_ERRORS) {
NetpKdPrint(( "XsNetRemoteTOD: NetRemoteTOD failed: "
"%X\n", status ));
}
Header->Status = (WORD)status;
goto cleanup;
}
//
// Convert the structure returned by the 32-bit call to a 16-bit
// structure. The last possible location for variable data is
// calculated from buffer location and length.
//
stringLocation = (LPBYTE)( XsSmbGetPointer( &parameters->Buffer )
+ SmbGetUshort( &parameters->BufLen ) );
status = RapConvertSingleEntry(
(LPBYTE)&timeOfDay,
Desc32_time_of_day_info,
FALSE,
(LPBYTE)XsSmbGetPointer( &parameters->Buffer ),
(LPBYTE)XsSmbGetPointer( &parameters->Buffer ),
Desc16_time_of_day_info,
TRUE,
&stringLocation,
&bytesRequired,
Response,
NativeToRap
);
if ( status != NERR_Success ) {
IF_DEBUG(ERRORS) {
NetpKdPrint(( "XsNetRemoteTOD: RapConvertSingleEntry failed: "
"%X\n", status ));
}
Header->Status = NERR_InternalError;
goto cleanup;
}
IF_DEBUG(TIME) {
NetpKdPrint(( "32-bit data at %lx, 16-bit data at %lx, %ld BR\n",
&timeOfDay, SmbGetUlong( &parameters->Buffer ),
bytesRequired ));
}
//
// Determine return code based on the size of the buffer. There is
// no variable data for a time_of_day_info structure, only fixed data.
//
if ( !XsCheckBufferSize(
SmbGetUshort( &parameters->BufLen ),
Desc16_time_of_day_info,
FALSE // not in native format
)) {
IF_DEBUG(ERRORS) {
NetpKdPrint(( "XsNetRemoteTOD: Buffer too small.\n" ));
}
Header->Status = NERR_BufTooSmall;
}
//
// No return parameters.
//
cleanup:
;
} except( EXCEPTION_EXECUTE_HANDLER ) {
Header->Status = (WORD)RtlNtStatusToDosError( GetExceptionCode() );
}
//
// Determine return buffer size.
//
XsSetDataCount(
&parameters->BufLen,
Desc16_time_of_day_info,
Header->Converter,
1,
Header->Status
);
return STATUS_SUCCESS;
} // XsNetRemoteTOD
NET_API_STATUS
GetLocalTOD(
OUT LPTIME_OF_DAY_INFO TimeOfDayInfo
)
/*++
Routine Description:
This routine calls the Win32 and NT base timer APIs to get the
relevant time/date information. It also calls the Rtl routine to
convert the time elapsed since 1-1-1970.
The routine allocates a buffer to contain the time of day information
and returns a pointer to that buffer to the caller.
Arguments:
bufptr - Location of where to place pointer to buffer.
Return Value:
NTSTATUS - STATUS_SUCCESS or reason for failure.
--*/
{
SYSTEMTIME LocalTime;
LONG LocalTimeZoneOffsetSecs; // offset (+ for West of GMT, etc).
LARGE_INTEGER Time;
//
// Call the appropriate routines to collect the time information
//
// Number of seconds from UTC. Positive values for west of Greenwich,
// negative values for east of Greenwich.
LocalTimeZoneOffsetSecs = NetpLocalTimeZoneOffset();
GetLocalTime(&LocalTime);
TimeOfDayInfo->tod_hours = LocalTime.wHour;
TimeOfDayInfo->tod_mins = LocalTime.wMinute;
TimeOfDayInfo->tod_secs = LocalTime.wSecond;
TimeOfDayInfo->tod_hunds = LocalTime.wMilliseconds/10;
// tod_timezone is + for west of GMT, - for east of it.
// tod_timezone is in minutes.
TimeOfDayInfo->tod_timezone = LocalTimeZoneOffsetSecs / 60;
TimeOfDayInfo->tod_tinterval = 310;
TimeOfDayInfo->tod_day = LocalTime.wDay;
TimeOfDayInfo->tod_month = LocalTime.wMonth;
TimeOfDayInfo->tod_year = LocalTime.wYear;
TimeOfDayInfo->tod_weekday = LocalTime.wDayOfWeek;
//
// Get the 64-bit system time. Convert the system time to the
// number of seconds since 1-1-1970. This is in GMT, Rap will
// convert this to local time later.
//
NtQuerySystemTime(&Time);
RtlTimeToSecondsSince1970(
&Time,
&(TimeOfDayInfo->tod_elapsedt)
);
//
// Get the free running counter value
//
TimeOfDayInfo->tod_msecs = GetTickCount();
return(NO_ERROR);
}