From: Glen Holcomb <damnbigman@...>
Date: 2007-07-14T05:39:15+09:00
Subject: Re: Strange Segfault

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On 7/13/07, Glen Holcomb <damnbigman@gmail.com> wrote:
>
> On 7/13/07, Daniel Berger <djberg96@gmail.com> wrote:
> >
> >
> >
> > On Jul 13, 12:03 pm, "Glen Holcomb" <damnbig...@gmail.com> wrote:
> > > I have an interesting problem.  I have a script that I wish to use to
> > check
> > > a database and then map drives based on who is logging on and the info
> > in
> > > the database.
> > >
> > > When I run the script on any of the machines in the computer lab it
> > > segfaults.  When I copy the exact same code that is in the script into
> > an
> > > irb session and run it I don't have any trouble.  I can run the script
> > > proper on my office workstation.
> > >
> > > Does anyone have any idea what could be causing this?
> > >
> > > I'm running ruby 1.8.6 on all the machines in question.
> > >
> > > Here is the script:
> > >
> > > require 'Win32API'
> > > require 'xmlrpc/client'
> > >
> > > class User
> > >     def lookup
> > >     user = "0" * 20
> > >
> > >     getUserName = Win32API.new("advapi32", "GetUserName", 'P', "V")
> > >
> > >     getUserName.call(user)
> > >
> > >     return user
> > >     end
> > >
> > >     def account_created?(login)
> > >         server = XMLRPC::Client.new2(' http://localhost:3003/user/api'
> <http://localhost:3003/user/api%27>
> > )
> > >
> > >         result = server.call('Check', login)
> > >
> > >         if result == 0
> > >           return false
> > >         else
> > >             return true
> > >         end
> > >     end
> > >
> > >     def map_drives(login)
> > >         system("net use x: /delete /y")
> > >         system("net use l: /delete /y")
> > >         system("net use x: //cad1/#{login}")
> > >         system("net use l: //cad1/shared")
> > >     end
> > > end
> > >
> > > user = User.new
> > >
> > > username = user.lookup
> > >
> > > if user.account_created?(username)
> > >     user.map_drives(username)
> > > end
> >
> > What version of Windows are you on? Is there a backtrace you could
> > show us? That would help us determine whether or not it's the system
> > calls or something else.
> >
> > Regards,
> >
> > Dan
> >
> >
> > All the machines involved are running XP Pro.
>
> This is the best I can get out of it:
>
> c:\ruby\lib\ruby\1.8\xmlrpc\client.rb:414:in 'call'
> C:\Startup\map.rb:24:in 'account_created?'
> C:\Startup\map.rb:50
>
> --
> "Hey brother christian with your high and mighty errand, Your actions
> speak
> so loud, I can't hear a word you're saying."
>
> -Greg Graffin (Bad Religion)
>

Okay for reasons I'm not sure of right now and don't have time to
investigate changing the server.call to server.call2 fixed the problem.

-- 
"Hey brother christian with your high and mighty errand, Your actions speak
so loud, I can't hear a word you're saying."

-Greg Graffin (Bad Religion)

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