Re: minor bug

[Brandon Enright <bmenrigh () ucsd edu>]

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On Wed, 11 Jul 2012 11:15:12 +0100
Martin Ross <martinjohnross () gmail com> wrote:

> Sir/Madam,
>
> great software for enumerating my home network!
>
> One minor niggle; a scan report starts with this line,
>
> *"Starting Nmap 6.01 ( http://nmap.org ) at 2012-07-11 11:09 GMT
> Daylight Time"*
> *
> *
> There is no such time zone!
>
> UK is currently on BST = British Summer Time.  GMT never changes.
>
> cheers,
>
> Martin


Hi Martin,

I agree there is no such timezone but I think the problem is on your
client.

The relevant lines are:

  if (strftime(tbuf, sizeof(tbuf), "%Y-%m-%d %H:%M %Z", local_time) <=
  0) fatal("Unable to properly format time");
  log_write(LOG_STDOUT|LOG_SKID, "\nStarting %s %s ( %s ) at %s\n",
  NMAP_NAME, NMAP_VERSION, NMAP_URL, tbuf);

As you can see the "GMT Daylight Time" is coming from the %Z format to
strftime()

Are you using Windows?  This seems to be an issue with TimeZoneInfo()
on Windows:

https://connect.microsoft.com/VisualStudio/feedback/details/298123/timezoneinfo-believes-that-gmt-daylight-time-exists-but-there-is-no-such-thing

In any case, if you want GMT-like-time I think you should use UTC as
your timezone which should get around this odd issue.

Regards,

Brandon
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