cscript - Invalid procedure call or argument when running a vbs file - windows-server-2003

Question

I've been trying to use check_time.vbs to check the Windows time.
Here's the script: http://pastebin.com/NfUrCAqU
The help message could be display:
C:\Program Files\NSClient++\scripts>cscript //NoLogo check_time.vbs /?
check_time.vbs V1.01
Usage: cscript /NoLogo check_time.vbs serverlist warn crit [biggest]
Options:
serverlist (required): one or more server names, coma-separated
warn (required): warning offset in seconds, can be partial
crit (required): critical offset in seconds, can be partial
biggest (optional): if multiple servers, else use default least offset
Example:
cscript /NoLogo check_time.vbs myserver1,myserver2 0.4 5 biggest
But I get the following error when running:
C:\Program Files\NSClient++\scripts>cscript //NoLogo check_time.vbs 0.asia.pool.ntp.org 20 50
C:\Program Files\NSClient++\scripts\check_time.vbs(53, 1) Microsoft VBScript run
time error: Invalid procedure call or argument
The screenshot:
Manually execute w32tm still works fine:
What might be the cause of this?

Answer 1

IIRC the (53,1) indicates that the error is on line 53. At this point it is expecting an array of regexp matches with at least one item (index 0) and one sub-match (i.e. the object in position 0 in the array has an array property called SubMatches with at least one item in it.
It is not checking to make sure this structure is present and correct before trying to use it.
My assumption is that the regexp call is failing to find anything to match, presumably because the input string is not in the expected format. You could output the content of strOutput before that line to see what it contains - it could be a date/time representation in a different localized form than the regexp is designed for. You could also output the content of input after each call to objProc.StdOut.ReadLine - this would show you if the call to w32tm.exe returned a useful error message that is being skipped over by the script which is just looking for the value returned when all is well and ignoring the possibility of different output.

Answer 2

The culprit is the /nowarn argument:
w32tm /monitor /nowarn /computers:0.asia.pool.ntp.org
The following arguments were unexpected: /nowarn
Exiting with error 0x80070057
Remove it from the script, and now it works:
cscript //NoLogo check_time.vbs 0.uk.pool.ntp.org 20 50
NTP OK: Offset -2.4262131 secs|'offset'=-2.4262131s;20;50;