On Sun, Dec 02, 2007 at 10:15:16AM -0500, Clint Adams wrote:
> On Sat, Dec 01, 2007 at 09:49:23PM -0700, Matthew Wilcox wrote:
> > const char *ethers = mmap(NULL, 100000, PROT_READ, MAP_SHARED, fd,
> > 0);
> >
> > ether_line(ethers, &addr, hostname);
>
> Is there a reason to pass more than one actual line to ether_line()?
Um, I think I just showed an example -- where you want to mmap /etc/ethers
rather than fgets() each line in turn. Is that a usage that we don't want
to support? If so, I think the manpage should be amended to state that.
It's somewhat ambiguous, of course:
The ether_line() function parses a line in /etc/ethers format (ethernet
address followed by whitespace followed by hostname; '#' introduces a
comment) and returns an address and hostname pair, or non-zero if it
cannot be parsed. The buffer pointed to by hostname must be suffi-
ciently long, for example, have the same length as line.
It doesn't say the line has to be NUL-terminated; my understanding would
be that a \n terminates a line.
--
Intel are signing my paycheques ... these opinions are still mine
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours. We can't possibly take such
a retrograde step."
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