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Question about a sample from Rajeev Nagar's book

OSR_Community_UserOSR_Community_User Member Posts: 110,217
I took a compiled sample from Rajeev Nagar's book: SFILTER.SYS (see
O'Reilly's bookstore).I think I can do a file acces filtering .But that
sample do nothing although has a DbgPrint in its souirce code on IRP_CREATE
function.
I like do to something like in that source code .How can I do that?.I could
buy the book but if the compiled sources dosent work....
Thanks
Adi

Comments

  • OSR_Community_UserOSR_Community_User Member Posts: 110,217
    As the name implies, DbgPrint is sent to the debugger. If you are using a
    debugger you will see the output.

    << I took a compiled sample from Rajeev Nagar's book: SFILTER.SYS (see
    O'Reilly's bookstore).I think I can do a file acces filtering .But that
    sample do nothing although has a DbgPrint in its souirce code on IRP_CREATE
    function.
    I like do to something like in that source code .How can I do that?.I could
    buy the book but if the compiled sources dosent work....
    Thanks
    Adi
    >>
  • OSR_Community_UserOSR_Community_User Member Posts: 110,217
    Of course I use a debugger :()
    I am interested if that sample work on someone else's computer because I
    suspect that it is somthing wrong with my computer
    Did you tested it?

    ----- Original Message -----
    From: <[email protected]>
    To: File Systems Developers Interest List <[email protected]>
    Sent: Thursday, February 24, 2000 9:35 PM
    Subject: [ntfsd] Re: Question about a sample from Rajeev Nagar's book


    > As the name implies, DbgPrint is sent to the debugger. If you are using a
    > debugger you will see the output.
    >
    > << I took a compiled sample from Rajeev Nagar's book: SFILTER.SYS (see
    > O'Reilly's bookstore).I think I can do a file acces filtering .But that
    > sample do nothing although has a DbgPrint in its souirce code on
    IRP_CREATE
    > function.
    > I like do to something like in that source code .How can I do that?.I
    could
    > buy the book but if the compiled sources dosent work....
    > Thanks
    > Adi
    > >>
    >
    > ---
    > You are currently subscribed to ntfsd as: [email protected]
    > To unsubscribe send a blank email to $subst('Email.Unsub')
  • OSR_Community_UserOSR_Community_User Member Posts: 110,217
    Hi,

    Are you using KERNEL debugger? If so, are you compiling with DEBUG flag
    enabled?
    If you are using compiled sources, there may be a chance they are compiled in
    RELEASE mode, thus
    producing no debug output.

    Simple way to see debug output is to use DbgView from www.sysinternals.com...

    Regards,
    Giga

    chirita adrian wrote:

    > Of course I use a debugger :()
    > I am interested if that sample work on someone else's computer because I
    > suspect that it is somthing wrong with my computer
    > Did you tested it?
    >
    > ----- Original Message -----
    > From:
    > To: File Systems Developers Interest List
    > Sent: Thursday, February 24, 2000 9:35 PM
    > Subject: [ntfsd] Re: Question about a sample from Rajeev Nagar's book
    >
    > > As the name implies, DbgPrint is sent to the debugger. If you are using a
    > > debugger you will see the output.
    > >
    > > << I took a compiled sample from Rajeev Nagar's book: SFILTER.SYS (see
    > > O'Reilly's bookstore).I think I can do a file acces filtering .But that
    > > sample do nothing although has a DbgPrint in its souirce code on
    > IRP_CREATE
    > > function.
    > > I like do to something like in that source code .How can I do that?.I
    > could
    > > buy the book but if the compiled sources dosent work....
    > > Thanks
    > > Adi
    > > >>
    > >
    > > ---
    > > You are currently subscribed to ntfsd as: [email protected]
    > > To unsubscribe send a blank email to $subst('Email.Unsub')
    >
    > ---
    > You are currently subscribed to ntfsd as: [email protected]
    > To unsubscribe send a blank email to $subst('Email.Unsub')
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