Joan,
the return type is related to the type of struct lwip_sock's 'err' member.
reading the comment /** last error that occurred on this socket (in
fact, all our errnos fit into an u8_t) */
makes it clear this is just a size improvement which holds for our error
definitions but might not hold for all errnos assigned.
It should be safe to change (and I think we could do better than just
using u8_t here, in terms of portability).
However, I'd really be interested where your problem comes from. We only
assign known error numbers to sock->err, so are you using E* defines
that don't fit into an u8_t?
Simon
Joan Lledó wrote:
Hello,
lwip_getsockopt_impl() in api/sockets.c returns u8_t, which is enough
for most errno implementations, but some implementations need all 32
bits. Please, take a look at this thread:
https://lists.debian.org/debian-hurd/2002/01/msg00022.html
I've changed return type to u32_t and have also needed to mask the
value when converting it to u8_t in sockets.c:302. Is it safe to do this?
Thank you.
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