Kees Cook: gcc-4.5 and -D_FORTIFY_SOURCE=2 with “header” structures


 
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Special Forums Cybersecurity Security Advisories (RSS) Kees Cook: gcc-4.5 and -D_FORTIFY_SOURCE=2 with “header” structures
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Old 12-17-2010
Kees Cook: gcc-4.5 and -D_FORTIFY_SOURCE=2 with “header” structures

Recently gcc (4.5) improved its ability to see the size of various structures. As a result, the FORTIFY protections have suddenly gotten a bit stricter. In the past, you used to be able to do things like this:

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Sendpage::PagingCentral(3pm)				User Contributed Perl Documentation			      Sendpage::PagingCentral(3pm)

NAME
PagingCental.pm - implements the TAP protocol over the Modem module SYNOPSIS
$pc=Sendpage::PagingCentral->new($config,$name); $rc=$pc->start_proto(); $rc=$pc->send($pin,$text); ... $pc->disconnect(); $rc=$pc->deliver($page); $pc->SendMail($to,$from,$cc,$errorsto,$subject,$body); DESCRIPTION
This is a module for use in sendpage(1). BUGS
Need to write more docs. AUTHOR
Kees Cook <kees@outflux.net> SEE ALSO
perl(1), sendpage(1), Sendpage::KeesConf(3), Sendpage::KeesLog(3), Sendpage::Modem(3), Sendpage::PageQueue(3), Sendpage::Page(3), Sendpage::Recipient(3), Sendpage::Queue(3) COPYRIGHT
Copyright 2000 Kees Cook. This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.10.0 2008-01-03 Sendpage::PagingCentral(3pm)