groupmember() bug?

I just noticed something that popped up on comp.protocols.nfs, which seems like it might be a bug in several BSD flavours?

groupmember() - only checks cr_groups[] and not cr_gid

In 4.4, cr_gid was just cr_groups[0], but some subsequent flavours have separated it out from cr_groups[] in "struct ucred".

As a result, ufs_chown() fails to change the gid of a file to the primary gid (cr_gid) of a user, unless that gid is also listed in cr_groups[]. (This showed up as an NFS setattr problem for setting a gid of a newly  created file to the client user's primary effective gid.)

Is this a bug? rick Received on Fri Mar 28 15:09:57 2003