23 May
2003
23 May
'03
6:10 a.m.
The V7 ls(1) man page says that the -s option, which
prints total
blocks, includes any indirect blocks.
However, the V7 struct stat didn't have the
st_blocks member in the
struct stat, and the code in ls.c uses
long
nblock(size)
long size;
{
return((size+511)>>9);
}
So, is this just a case of the man page being mistaken?
Yes, it looks like a manual bug. Retrieving
the true number of indirect blocks isn't possible
from the 7th edition stat. I'm not sure when (or by
whom) the st_blocks member was added.
While I'm at it, the V7 ls -a option only adds .
and .. to the
list; apparently all other dot files were printed by default.
When did ls change such that -a applied to all dot files?
UCB or USL did this (I'm sure which first).
Both tended to use more . files.
Dennis