Re: full_read depends on incoming errno

[Paul Eggert]

On 02/21/13 09:16, Paolo Bonzini wrote:
> I think usually errno is undefined for return values other than -1

That's true for system calls, but full_read is
different in that it sets errno whenever it returns
a value other than the requested size.  That way,
the caller can distinguish a short read due to EOF
from a short read due to I/O error.  So Andy's code
should be OK.