On 03/31/2011 02:15 PM, Eric Blake wrote: > I also don't know how many of the implementations are technically right > - POSIX allows a wide range of acceptable behavior, but did require that > the particular behavior used be documented (not like anyone wants to > read documentation for multiple implementations to compare them to see > where things will go different). But if other implementations don't > document what they do, then they are wrong no matter how you look at it, > even if they can justify their behavior under a typical work flow.
Also note that there is a difference between POSIX requirements: chmod 755 file - must clear setgid bit chmod 2755 file - must set setgid bit chmod 755 dir - may leave setgid bit set chmod 2755 dir - may leave setgid bit clear because POSIX is explicit that regular files treat the octal argument literally for all 12 bits, but that all other file types are implementation-defined on the effect on the top 3 bits. -- Eric Blake [email protected] +1-801-349-2682 Libvirt virtualization library http://libvirt.org
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