Jeff King wrote: > I definitely would prefer to avoid EIO, or anything that an actual > read() might return. > > What do you think of ENODATA? The glibc text for it is pretty > appropriate. If it's not available everywhere, we'd have to fallback to > something else (EIO? 0?). I don't know how esoteric it is. The likely > candidate to be lacking it is Windows. ENODATA with a fallback to ESPIPE sounds fine to me. read() would never produce ESPIPE because it doesn't seek. So that would be: /* errno value to use for early EOF */ #ifndef ENODATA #define ENODATA ESPIPE #endif Thanks, Jonathan
