Messages in this thread | | | Date | Fri, 24 Aug 2007 13:00:06 -0400 | From | Josef Sipek <> | Subject | Re: errno codes intertwined |
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On Fri, Aug 24, 2007 at 06:24:48PM +0200, Jan Engelhardt wrote: ... > If a file does not have the requested attribute, the syscall will > produce ENODATA. On x86_64, that is mapped to the value 61. Back on the > sparc side, 61 is mapped to ECONNREFUSED, and that gives odd errors > when ls tries to query xattrs:
I'd think that passing the raw error code is a bad idea, and that you probably want to have your own set of codes that you use in the trasport and map value to/from the host's errno values.
> the values are exactly swapped (mips is another oddball not portrayed > here). Since these header files propagate into /usr/include, this > affects userspace programs too.
Yep, and it kind of sucks.
> So I'm just asking: can I rely on the same errno across Linuxes?
I wouldn't - Linux on different different architectures seems to have different errno codes.
> And should the errno values be fixed up?
It would break userspace :-/
Josef 'Jeff' Sipek.
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