Hallo again,
On Mon, Jun 02, 2003 at 12:38:44PM -0700, Paul Eggert wrote:
> And if a Hurd system is exporting a directory to Solaris
> via NFS or CIFS, the Solaris 'grep' will indeed see a directory that
> is a text file.
OK, I'm convinced now that ``read'' must be the default.
I have also discovered that I misunderstood the code I've cited
several times:
| if (! fillbuf (save, stats))
| if (! is_EISDIR (errno, file) && ! suppress_errors)
| error (filename, errno);
if -s is not given, the only error which is concealed is EISDIR
or ``Is a directory''.
So if the fact that the file is a directory was the reason why the OS
refused to read it, that fact is not reported.
So now I understand that the current behaviour is good.
The only thing which should be fixed is the documentation.
The info page says:
[...] `read', which means that directories are read
just as if they were ordinary files (some operating systems and
filesystems disallow this, and will cause `grep' to print error
messages for every directory or silently skip them).
In fact, grep tries hard to be silent about such errors, so I'd just say:
[...] `read', which means that `grep' attempts to read the
directory just as if it was an ordinary file. Most operating
systems and filesystems disallow this, which causes `grep' to
silently skip the directory.
(The man page should be fixed in a similar manner.)
Would you agree with this?
Stepan Kasal
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