On Wed, 21 Mar 2001, Joern Heissler wrote:
> I've got a strange problem with /dev/isdninfo:
>
> joern:~# cat /dev/isdninfo
> idmap: Hisax...
> chmap: 0 1 ...
>
> --> cat /dev/isdninfo works :-)
>
> Here's the problem:
>
> open("/dev/isdninfo", O_RDONLY) = 3
> read(3, "", 200) = 0
>
> Could someone please tell me what's wrong? I (and some other people) do not
>understand this.
Well, /dev/isdninfo will only return the info to you if it entirely fits
into the supplied buffer. So, you should try a read with 2048 bytes or so,
and it'll work just fine.
Not that I think that the current behavior is particularly smart, but
that's how things are.
--Kai
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