On Tue, Feb 08, 2005 at 11:22:24AM -0500, Michael Stone wrote: > On Tue, Feb 08, 2005 at 03:39:05PM +0000, James Youngman wrote: > >No. The POSIX standard (in a non-normative section) says :- > > > >| The unit for the st_blocks member of the stat structure is not defined > >| within IEEE Std 1003.1-2001. In some implementations it is 512 > >| bytes. It may differ on a file system basis. There is no correlation > >| between values of the st_blocks and st_blksize, and the f_bsize (from > >| <sys/statvfs.h>) structure members. > >| > >| Traditionally, some implementations defined the multiplier for > >| st_blocks in <sys/param.h> as the symbol DEV_BSIZE. > > > >I think almost all systems use 512 byte units. > > Note where it says "some implementations"? You're diving heavily into > implementation-specific logic, and making unfounded assumptions.
I wasn't. I have never assumed that st_blksize should ever be multiplied by st_blocks. That's why I was quoting the POSIX document. Besides though, I think the original comment related to "df" not "du". However, It is probably useful for the documentation to indicate explicitly what units each of the file-size or disk-capacity %-format-directives is measured in, except where this is not known until "configure" is run (making config.status generat foo.texi seems prety awkward to me). James. _______________________________________________ Bug-coreutils mailing list Bug-coreutils@gnu.org http://lists.gnu.org/mailman/listinfo/bug-coreutils
