On Tue, 12 May 2009 13:55:30 +0200 Adam Tkac <at...@redhat.com> wrote:
> On Tue, May 12, 2009 at 01:24:09PM +0200, Peter Åstrand wrote: > > > > Why does it work with shorter passwords? > > Currently rfb::PlainPasswd::PlainPasswd(const struct rfb::ObfuscatedPasswd &) > constructor is used. It allocates space for 9 chars so 9-chars > passwords are OK. > > I didn't inspected why 11-chars passwd is still OK but I expect that glibc > allocates little bigger buffer than 9 chars or memory which is right > after the buffer is not used at all (so overflow doesn't matter). > Memory allocations are 32-bit aligned (on x86), hence it will allocate 12 bytes if you ask for 9. Rgds -- Pierre Ossman OpenSource-based Thin Client Technology System Developer Telephone: +46-13-21 46 00 Cendio AB Web: http://www.cendio.com
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