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Re: NSS error reporting (bug 20532)
On 08/04/2017 11:08 AM, Florian Weimer wrote:
> In short, if we made this change, way too much code would break.
I half expected this answer, which is why my original suggestion had
save/restore errno and then modify it in the outbound case.
We have a decision to make, and I would err on the side of caution,
which means we have to break POSIX requirements here, and accept that
getpwnam_r modifies errno in the event of an error even if POSIX says
it doesn't, which means we change errno when the user isn't expecting.
At least initially I think that saving/restoring errno is thew way to
go here to provide some level of isolation.