RE: BBWin V.12 filesystem epoch time and local time conflict

["McGraw, Robert P" <rmcgraw (at) purdue.edu>]

A little more digging and I see 


> -----Original Message-----
> From: McGraw, Robert P
> Sent: Tuesday, June 24, 2008 10:40 AM
> To: 'hobbit (at) hswn.dk'; 'bbwin-users (at) lists.sourceforge.net'
> Subject: BBWin V.12 filesystem epoch time and local time conflict
> 
> I have the [file:] set up in central mode on our BBWin V.12 client and it
> returns the following client data to the Hobbit server.
> 
> 	[file:c:\Alligate\AAATEST]
> 	type:0x00020 (file)
> 	mode:777 (not implemented)
> 	linkcount:1
> 	owner:0 (not implemented)
> 	group:0 (not implemented)
> 	size:0
> 	atime:1214222069 (2008/06/23-11:54:29)
> 	ctime:1213796626 (2008/06/18-13:43:46)
> 	mtime:1214222069 (2008/06/23-11:54:29)
> 
> On my hobbit server hobbit-clients.cfg I have
> 
> 	FILE c:\Alligate\AAATEST red MTIME<88200
> 
> The YYYY/MM/DD-HH:MM:SS atime, ctime and mtime are local time.
> 
> During testing I noticed that the red icon would come on before I had
> expected.
> 
> I decided to do a little checking and using a web epoch time calculator.
> 
> If I enter 2008/06/23-11:54:29 it returns the epoch time of 1214236469,
> which
> does not match mtime epoch time above.
> 
> If I enter the epoch mtime 1214222069 I get Mon Jun 23 2008 07:54:29
> GMT-0400 (EDT) which does not match the date.
> 
> If I enter epoch time 1214236469 I get Mon Jun 23 2008 11:54:29 GMT-0400
> (EDT)
> 
> It seems that the YYYY/MM/DD-HH:MM:SS time is reported in local time and
> the
> epoch time is reported in GMT time which throws things off by four hours.
> 
> 
> The following is the code in filesystem
> 
>   325 	reportData << format("type:0x%05x ") %
> handle_file_info.dwFileAttributes;
>   326 	if (handle_file_info.dwFileAttributes &
> FILE_ATTRIBUTE_DIRECTORY)
>   327 		reportData << "(dir)" << endl;
>   328 	else
>   329 		reportData << "(file)" << endl;
>   330 	reportData << "mode:777 (not implemented)" << endl;
>   331 	reportData << format("linkcount:%u") %
> handle_file_info.nNumberOfLinks
> << endl;
>   332 	reportData << "owner:0 (not implemented)" << endl;
>   333 	reportData << "group:0 (not implemented)" << endl;
>   334 	reportData << format("size:%lu") % fsize << endl;
>   335 	string output;
>   336 	GetTimeString(handle_file_info.ftLastAccessTime, output);
>   337 	reportData << "atime:" << output << endl;
>   338 	GetTimeString(handle_file_info.ftCreationTime, output);
>   339 	reportData << "ctime:" << output << endl;
>   340 	GetTimeString(handle_file_info.ftLastWriteTime, output);
>   341 	reportData << "mtime:" << output << endl;
>   342 	fclose(f);
>   343 	return true;

GetTimeString is a function in the filesystem code which follows.

bool		AgentFileSystem::GetTimeString(const FILETIME & filetime,
string & output) {
  255 	__int64	ftime = (filetime.dwHighDateTime * MAXDWORD) +
filetime.dwLowDateTime;
  256 	SYSTEMTIME	fsystime;
  257 	FILETIME	floctime;
  258 	time_t		epoch;
  259 
  260 	if (::FileTimeToLocalFileTime(&filetime, &floctime) == 0) {
  261 		return false;
  262 	}
  263 	if (::FileTimeToSystemTime(&floctime, &fsystime) == 0) {
  264 		return false;
  265 	}
  266 	utils::SystemTimeToTime_t(&fsystime, &epoch);
  267 	stringstream reportData;
  268 	reportData << format("%llu (%02d/%02d/%d-%02d:%02d:%02d)")
  269 					% (unsigned __int64)epoch
  270 					% fsystime.wYear
  271 					% fsystime.wMonth
  272 					% fsystime.wDay
  273 					% fsystime.wHour
  274 					% fsystime.wMinute
  275 					% fsystime.wSecond;
  276 	output = reportData.str();
  277 	return true;
  278 }

It seems to me that after line 266 there needs to be a couple lines that
converts the GMT epoch to local epoch.



> 
> 
> The function GetTimeString seems to be the code that is returning the time
> information. I have not been able to find this code in the BBWin svn so I
> am
> not sure if this is a local function or a system function.
> 
> I am not a Window type guy and no very little about such things. Can a
> super
> duper window type person peruse this and see what they can find.
> 
> Tanks
> 
> 
> 
> Thanks
> 
> Robert
> 
> 
> 
> 
> 
> --------------------------------------------------------------------
> Robert P. McGraw, Jr.
> Manager, Computer System                 EMAIL: rmcgraw (at) purdue.edu
> Purdue University                         ROOM: MATH-807
> Department of Mathematics                PHONE: (765) 494-6055
> 150 N. University Street
> West Lafayette, IN 47907-2067